Novel variable-diameter combined steel pipe

Abstract

The utility model relates to the technical field of variable-diameter steel pipes, in particular to a novel variable-diameter combined steel pipe which can be conveniently installed by workers and improve the adaptive capacity and comprises a variable-diameter pipeline, the calibers of the two ends of the variable-diameter pipeline are different, an extension pipe is installed at one end of the variable-diameter pipeline, and the extension pipe and the variable-diameter pipeline are sealed through a connecting rubber piece. One end of the connecting rubber sheet is fixedly connected with the extension pipe, the other end of the connecting rubber sheet is fixedly connected with the variable-diameter pipeline, a plurality of first connecting blocks are fixedly arranged on the outer wall of the variable-diameter pipeline, and the interior of each first connecting block is connected with a lead screw through threads; a plurality of first connecting blocks are fixedly arranged on the outer wall of the extension pipe, a plurality of second connecting blocks in one-to-one correspondence with the first connecting blocks are fixedly arranged on the outer wall of the extension pipe, each lead screw is rotationally connected with the corresponding second connecting block, the connecting rubber pieces are made of rubber materials, a rotating block is fixedly arranged at one end of each lead screw, and a flower groove is formed in each rotating block.

Description

Technical Field

[0001] The utility model relates to the technical field of variable diameter steel pipes, in particular to a novel variable diameter combined steel pipe. Background Art

[0002] As we all know, with the development of society, the steel pipe production technology has developed rapidly in variety, output and quality along with the manufacturing of electric boilers, the development of the chemical industry, and the drilling and transportation of oil and gas. Steel pipes can be divided into two categories according to the production method: seamless steel pipes and seamed steel pipes. Seamed steel pipes are referred to as straight seam steel pipes. The cross section of the traditional steel pipe is circular, and the two ends are equipped with water inlet and outlet to form the main body of the steel pipe. However, the diameter of the water inlet and outlet of the traditional steel pipe is the same, which cannot meet the connection between steel pipes of different diameters, and then the reducer pipes with different diameters at both ends are derived.

[0003] The existing variable diameter pipeline has a simple structure and a fixed length. Therefore, before installing the variable diameter pipeline, the staff needs to carefully calculate and reserve a suitable installation length to facilitate the subsequent installation of the variable diameter pipeline. Therefore, the existing variable diameter pipeline has the following shortcomings:

[0004] 1. The staff made detailed calculations and reserved appropriate installation lengths in advance, which wasted a lot of time and reduced installation efficiency;

[0005] 2. Once the staff makes a miscalculation, the purchased reducer pipe cannot be used. The staff needs to reinstall the pre-reserved pipe and perform a series of tedious work such as cutting or connecting the pipes, which makes the existing reducer pipe low in practicality and too cumbersome to install. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a novel variable-diameter combined steel pipe, which can be easily installed by workers and improves the adaptability.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of variable diameter combined steel pipe, comprising a variable diameter pipe, the calibers at both ends of the variable diameter pipe are different, an extension pipe is installed at one end of the variable diameter pipe, the extension pipe and the variable diameter pipe are sealed by a connecting rubber, one end of the connecting rubber is fixedly connected to the extension pipe, and the other end of the connecting rubber is fixedly connected to the variable diameter pipe, a plurality of first connecting blocks are fixedly arranged on the outer wall of the variable diameter pipe, the interior of each of the first connecting blocks is connected to a lead screw by a thread, a plurality of second connecting blocks corresponding to the first connecting blocks are fixedly arranged on the outer wall of the extension pipe, and each of the lead screws is rotatably connected to the corresponding second connecting block.

[0010] Wherein, the connecting film is made of rubber.

[0011] Wherein, a rotating block is fixedly arranged at one end of the lead screw.

[0012] Wherein, a flower groove is arranged on the rotating block.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a new type of variable diameter combined steel pipe, which has the following beneficial effects:

[0015] This novel variable diameter combined steel pipe, through the arrangement of an extension pipe, a first connecting block, a second connecting block and a lead screw, can adjust the telescopic length of the extension pipe by rotating the lead screw, effectively improving the adaptability of the variable diameter pipe, and can be installed at positions with different reserved lengths, and improves the fault tolerance rate, thereby effectively improving the practicality. During installation, the staff does not need to make detailed calculations, and only needs simple adjustments to complete the installation, thereby facilitating the staff to install the variable diameter pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0019] In the figure: 1. reducing pipe; 2. extension pipe; 3. connecting film; 4. first connecting block; 5. second connecting block; 6. lead screw; 7. rotating block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] See also Figure 1-3 The utility model discloses a novel variable diameter combined steel pipe, comprising a variable diameter pipe 1, the calibers at both ends of the variable diameter pipe 1 are different, an extension pipe 2 is installed at one end of the variable diameter pipe 1, the extension pipe 2 and the variable diameter pipe 1 are sealed by a connecting rubber piece 3, the connecting rubber piece 3 seals the extension pipe 2 and the variable diameter pipe 1, one end of the connecting rubber piece 3 is fixedly connected to the extension pipe 2, the other end of the connecting rubber piece 3 is fixedly connected to the variable diameter pipe 1, a plurality of first connecting blocks 4 are fixedly arranged on the outer wall of the variable diameter pipe 1, each of the first connecting blocks 4 is connected to a lead screw 6 through a thread, a plurality of second connecting blocks 5 corresponding to the first connecting blocks 4 are fixedly arranged on the outer wall of the extension pipe 2, each lead screw 6 is rotatably connected to the corresponding second connecting block 5, and the rotating lead screw 6 can adjust the telescopic length of the extension pipe 2, which effectively improves the adaptability of the variable diameter pipe 1, can be installed at positions with different reserved lengths, and improves the fault tolerance rate.

[0022] Wherein, the connecting film 3 is made of rubber.

[0023] Among them, a rotating block 7 is fixedly provided at one end of the lead screw 6 to facilitate the rotation of the lead screw 6.

[0024] The rotating block 7 is provided with a flower groove, and the lead screw 6 can be rotated by a screwdriver.

[0025] To sum up, this new type of variable diameter combined steel pipe, when in use, can rotate the screw 6 by twisting the rotating block 7 or the flower groove with a tool. Rotating the screw 6 can adjust the telescopic length of the extension tube 2, effectively improving the adaptability of the variable diameter pipe 1, and can be installed at positions with different reserved lengths. During installation, the staff does not need to make detailed calculations, and only needs simple adjustments to complete the installation.

[0026] The technical terms or scientific terms used in the description of this application should be the common meanings understood by ordinary technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance.

[0027] The words "one", "an" or "the" and the like used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The words "include" or "comprise" and the like used in the description of this application mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel variable diameter combined steel pipe, comprising a variable diameter pipe (1), wherein the diameters of the two ends of the variable diameter pipe (1) are different. Features: An extension tube (2) is installed at one end of the reducer pipe (1); the extension tube (2) and the reducer pipe (1) are sealed by a connecting rubber (3); one end of the connecting rubber (3) is fixedly connected to the extension tube (2); the other end of the connecting rubber (3) is fixedly connected to the reducer pipe (1); a plurality of first connecting blocks (4) are fixedly arranged on the outer wall of the reducer pipe (1); each of the first connecting blocks (4) is internally connected to a lead screw (6) via a thread; a plurality of second connecting blocks (5) corresponding to the first connecting blocks (4) are fixedly arranged on the outer wall of the extension tube (2); each of the lead screws (6) is rotatably connected to the corresponding second connecting block (5).

2. According to claim 1, a new type of variable diameter composite steel pipe, Features: The connecting film (3) is made of rubber.

3. According to claim 1, a new type of variable diameter composite steel pipe, Features: A rotating block (7) is fixedly arranged at one end of the lead screw (6).

4. A novel variable diameter composite steel pipe according to claim 3, Features: The rotating block (7) is provided with a flower groove.

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