Oil pipe expander

Abstract

The utility model relates to an oil pipe expander which comprises a fixing block and a screw rod, a pipe hole is formed in one side of the fixing block, a matching hole opposite to the pipe hole is formed in the other side of the fixing block, a transition opening is formed between the pipe hole and the matching hole, the screw rod is arranged in the matching hole in a threaded mode, and an inclined face with the cross section area gradually increased in the direction away from the end is arranged at the end of the screw rod.

Description

Technical Field

[0001] The utility model relates to an expander, in particular to an oil pipe expander. Background Art

[0002] An oil pipeline is a pipeline system used to transport liquids. In the fields of industry and engineering, an oil pipeline refers to a pipeline facility used to transport crude oil, refined oil, natural gas and other substances.

[0003] Due to installation requirements, some oil pipes need to be expanded before use. However, the operation of expanding the oil pipe ports is currently too complicated and the expansion effect is poor. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a tubing expander.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a fixed block and a screw rod, a tube hole is arranged on one side of the fixed block, a matching hole opposite to the tube hole is arranged on the other side, a transition port is arranged between the tube hole and the matching hole, the screw rod thread is arranged in the matching hole, and an inclined surface with a cross-sectional area gradually increasing along the direction away from the end is arranged at the end of the screw rod.

[0006] By adopting the above technical solution, when the end of the oil pipe needs to be expanded, the oil pipe is inserted from the pipe hole until the end of the oil pipe is opposite to the transition port, and then the screw is rotated to move the screw inward. At this time, the inclined surface gradually enters the end of the oil pipe through the transition port, and as the screw moves, the end of the oil pipe is expanded. By placing the oil pipe in the fixed block, the oil pipe is fixed, and then the end of the oil pipe is expanded by the gradually entering screw. This process can stably expand the end of the oil pipe, and the operation is not cumbersome.

[0007] The utility model is further configured as follows: the fixing block comprises an upper fixing block and a lower fixing block, and the pipe hole and the matching hole are arranged between the upper fixing block and the lower fixing block.

[0008] By adopting the above technical solution, before the oil pipe is put in, there is a certain gap between the upper fixing block and the lower fixing block, so that the oil pipe can be smoothly put into the pipe hole.

[0009] The utility model is further configured as follows: the upper fixing block and the lower fixing block are provided with fixing screw holes penetrating the two, and the fixing screw holes are arranged along a plane perpendicular to the pipe hole and the matching hole.

[0010] By adopting the above technical solution, after the oil pipe is placed in the pipe hole, another threaded rod is passed through the fixing screw hole to fix the upper fixing block and the lower fixing block, so that the oil pipe is fixed in the pipe hole.

[0011] The utility model is further configured as follows: it also includes a fixing rod, the fixing rod is arranged on the lower fixing block, and a plurality of operation holes are arranged on the fixing rod.

[0012] By adopting the above technical solution, the fixing rod is for the operator to hold, and the operating hole can be set to different sizes and shapes for adapting to different screws.

[0013] The utility model is further configured to include a threaded sleeve, which is arranged in the matching hole and forms a threaded match with the screw rod.

[0014] By adopting the above technical solution, the thread can be arranged in the thread sleeve, and the thread can be replaced after a long period of use.

[0015] The utility model is further configured as follows: the upper fixing block is provided with an observation hole perpendicular to the plane where the pipe hole and the matching hole are located, and the observation hole extends to the transition port.

[0016] By adopting the above technical solution, the expansion of the oil pipe can be observed through the observation hole.

[0017] The utility model is further configured as follows: the screw rod is provided with a limiting portion, the limiting portion is located outside the matching hole and cannot enter the matching hole.

[0018] The utility model is further configured as follows: there are a plurality of the tube holes and the matching holes, and the diameters of the tube holes are different.

[0019] By adopting the above technical solution, different diameters are adapted to oil pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a specific embodiment 1 of the utility model;

[0021] Figure 2 It is a cross-sectional view of a specific embodiment 1 of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the specific embodiment 2 of the present invention with the upper fixing block omitted.

[0023] In the figure: 1. fixing block; 11. upper fixing block; 12. lower fixing block; 13. pipe hole; 14. matching hole; 15. transition port; 16. fixing screw hole; 17. observation hole; 2. screw rod; 21. inclined surface; 22. limiting part; 3. fixing rod; 31. operating hole; 4. threaded sleeve. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1-3 As shown, the utility model discloses an oil pipe expander, comprising a fixed block 1 and a screw rod 2. A pipe hole 13 is provided on one side of the fixed block 1, and a matching hole 14 opposite to the pipe hole 13 is provided on the other side. A transition opening 15 is provided between the pipe hole 13 and the matching hole 14. The screw rod 2 is threadedly arranged in the matching hole 14. An inclined surface 21 whose cross-sectional area gradually increases along the direction away from the end is provided at the end of the screw rod 2. When the end of the oil pipe needs to be expanded, the oil pipe is inserted from the pipe hole 13 until the end of the oil pipe is opposite to the transition opening 15, and then the screw rod 2 is rotated to make the screw rod 2 move inward. At this time, the inclined surface 21 gradually enters the end of the oil pipe through the transition opening 15, and as the screw rod 2 moves, the end of the oil pipe is expanded. By placing the oil pipe in the fixed block 1, the oil pipe is fixed, and then the end of the oil pipe is expanded by the gradually entering screw rod 2. This process can stably expand the end of the oil pipe, and the operation is not cumbersome.

[0027] The fixing block 1 includes an upper fixing block 11 and a lower fixing block 12. The pipe hole 13 and the matching hole 14 are arranged between the upper fixing block 11 and the lower fixing block 12. Before the oil pipe is inserted, there is a certain gap between the upper fixing block 11 and the lower fixing block 12, so that the oil pipe can be smoothly inserted into the pipe hole 13.

[0028] The upper fixing block 11 and the lower fixing block 12 are provided with fixing screw holes 16 that pass through the two, and the fixing screw holes 16 are arranged along a plane perpendicular to the pipe hole 13 and the matching hole 14. After the oil pipe is placed in the pipe hole 13, another threaded rod is passed through the fixing screw holes 16 to fix the upper fixing block 11 and the lower fixing block 12, so that the oil pipe is fixed in the pipe hole 13.

[0029] It also includes a fixing rod 3, which is arranged on the lower fixing block 12. A plurality of operating holes 31 are arranged on the fixing rod 3. The fixing rod 3 is for an operator to hold, and the operating holes 31 can be arranged to have different sizes and shapes for adapting to different screws.

[0030] It also includes a threaded sleeve 4, which is arranged in the matching hole 14 and forms a threaded match with the screw rod 2. The thread can be arranged in the threaded sleeve 4, and after a long period of use, the thread can be replaced.

[0031] The upper fixing block 11 is provided with an observation hole 17 perpendicular to the plane where the pipe hole 13 and the matching hole 14 are located, and the observation hole 17 extends to the transition port 15. The observation hole 17 can be used to observe the expansion of the oil pipe.

[0032] The screw rod 2 is provided with a limiting portion 22 , which is located outside the matching hole 14 and cannot enter the matching hole 14 .

[0033] There are multiple pipe holes 13 and matching holes 14, and the pipe holes 13 have different diameters, and different diameters are adapted to oil pipes of different diameters.

[0034] Specific embodiment 1: When the end of the oil pipe needs to be expanded, there is a certain gap between the upper fixing block 11 and the lower fixing block 12, so that the oil pipe can be smoothly placed in the pipe hole 13, and the oil pipe is inserted from the pipe hole 13 until the end of the oil pipe is opposite to the transition port 15, and then another threaded rod is passed through the fixing screw hole 16 to fix the upper fixing block 11 and the lower fixing block 12, so that the oil pipe is fixed in the pipe hole 13, and then the screw rod 2 is rotated to move the screw rod 2 inward. At this time, the inclined surface 21 gradually enters the end of the oil pipe through the transition port 15, and as the screw rod 2 moves, the end of the oil pipe is expanded.

[0035] Specific embodiment 2: The difference from specific embodiment 1 is that a threaded sleeve 4 is additionally provided to facilitate replacement of the thread in the matching hole 14 after it is worn.

Claims

1. A tubing expander, characterized in that: The invention comprises a fixing block (1) and a screw rod (2); a tube hole (13) is arranged on one side of the fixing block (1), and a matching hole (14) opposite to the tube hole (13) is arranged on the other side; a transition opening (15) is arranged between the tube hole (13) and the matching hole (14); the screw rod (2) is threadedly arranged in the matching hole (14); and an inclined surface (21) whose cross-sectional area gradually increases in a direction away from the end is arranged at the end of the screw rod (2).

2. The tubing expander according to claim 1, characterized in that: The fixing block (1) comprises an upper fixing block (11) and a lower fixing block (12), and the pipe hole (13) and the matching hole (14) are arranged between the upper fixing block (11) and the lower fixing block (12).

3. The tubing expander according to claim 2, characterized in that: The upper fixing block (11) and the lower fixing block (12) are provided with fixing screw holes (16) that penetrate the two, and the fixing screw holes (16) are arranged along a plane perpendicular to the pipe hole (13) and the matching hole (14).

4. The tubing expander according to claim 2, characterized in that: It also comprises a fixing rod (3), wherein the fixing rod (3) is arranged on the lower fixing block (12), and a plurality of operating holes (31) are arranged on the fixing rod (3).

5. The tubing expander according to claim 2, characterized in that: It also includes a threaded sleeve (4), which is arranged in the matching hole (14) and forms a threaded match with the screw rod (2).

6. The tubing expander according to claim 2, characterized in that: The upper fixing block (11) is provided with an observation hole (17) perpendicular to the plane where the pipe hole (13) and the matching hole (14) are located, and the observation hole (17) extends to the transition port (15).

7. The tubing expander according to claim 1, characterized in that: The screw rod (2) is provided with a limiting portion (22), and the limiting portion (22) is located outside the matching hole (14) and cannot enter the matching hole (14).

8. The tubing expander according to claim 1, characterized in that: There are a plurality of the tube holes (13) and the matching holes (14), and the diameters of the tube holes (13) are different.

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