CN113108144A

CN113108144A - Reducing pipe

Info

Publication number: CN113108144A
Application number: CN202110392783.2A
Authority: CN
Inventors: 刘玉连; 缪思珍; 高健
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-07-13

Abstract

The invention relates to a reducing pipe which comprises a large-diameter pipe and a small-diameter pipe which are connected with each other, the reducing pipe also comprises an end cover and a rotating disc, the small-diameter pipe is eccentrically connected to the rotating disc, the rotating disc is rotatably connected to the end part of the large-diameter pipe, so that the large-diameter pipe is communicated with the small-diameter pipe, the end cover is covered on the rotating disc and is fixedly connected with the large-diameter pipe, and the distance between the axis of the large-diameter pipe and the axis of the small-diameter pipe can be adjusted by rotating the rotating disc. The invention has the advantages that: the rotating disc and the small-diameter pipe which are eccentrically designed are matched for use, and the eccentricity between the large-diameter pipe and the small-diameter pipe can be changed by rotating the rotating disc, so that the different-diameter pipe can be better connected with an oil pipe by changing the eccentricity, and the pipeline is prevented from being distorted; the rotation of the rotating disc is controlled by the matching of the worm rod piece and the annular worm wheel, so that the eccentricity is changed, and the operation is simple and rapid.

Description

Reducing pipe

Technical Field

The invention relates to the technical field of pipe fittings, in particular to a reducing pipe.

Background

With the large-area use of the reducing pipes in the pipeline construction, the eccentric reducing pipes are also used in a large amount, the eccentricity of the eccentric pipes in the prior art cannot be changed, but the eccentricity cannot be particularly accurate when the pipelines are butted, great inconvenience is caused to the connection of the reducing pipes, if the pipelines are connected together through the rigidity of the reducing pipes, leakage is easy to generate at the pipeline connection part, the service life of the pipelines can be influenced, and the invention is designed to solve the problems.

Disclosure of Invention

In view of the above, it is necessary to provide a reducing pipe with variable eccentricity.

The invention discloses a reducing pipe which comprises a large-diameter pipe and a small-diameter pipe which are connected with each other, the reducing pipe also comprises an end cover and a rotating disc, the small-diameter pipe is eccentrically connected to the rotating disc, the rotating disc is rotatably connected to the end part of the large-diameter pipe, so that the large-diameter pipe is communicated with the small-diameter pipe, the end cover is covered on the rotating disc and is fixedly connected with the large-diameter pipe, and the distance between the axis of the large-diameter pipe and the axis of the small-diameter pipe can be adjusted by rotating the rotating disc.

In one embodiment, the rotating disc is eccentrically disposed on the large diameter tube.

In one embodiment, an annular worm wheel is arranged on the outer ring of the rotating disc, a worm piece is rotatably arranged on the large-diameter pipe, the worm piece comprises a worm rod part, a shaft part and a threaded part, the worm rod part is meshed with the annular worm wheel, the threaded part extends out of the large-diameter pipe, and a nut is in threaded connection with the threaded part.

In one embodiment, a polygonal groove is formed on one end of the threaded part away from the worm part.

In one embodiment, the axis of the large-diameter pipe can be made to coincide with the axis of the small-diameter pipe by rotating the rotating disk.

In one embodiment, the end cover is provided with an avoiding round hole, the small-diameter pipe penetrates through the avoiding round hole, and the axis of the avoiding round hole is coincident with the axis of the rotating disc.

In one embodiment, a sealing ring is arranged at the contact surface of the rotating disc and the large-diameter pipe.

The invention has the advantages that:

1. the rotating disc and the small-diameter pipe which are eccentrically designed are matched for use, and the eccentricity between the large-diameter pipe and the small-diameter pipe can be changed by rotating the rotating disc, so that the different-diameter pipe can be better connected with an oil pipe by changing the eccentricity, and the pipeline is prevented from being distorted;

2. the rotation of the rotating disc is controlled by the matching of the worm rod piece and the annular worm wheel, so that the eccentricity is changed, and the operation is simple and rapid.

Drawings

FIG. 1 is a cross-sectional view of a reducer provided in the present invention;

FIG. 2 is a cross-sectional view of a reducing pipe provided by the present invention when the eccentricity becomes zero

FIG. 3 is a sectional view taken along line A-A of FIG. 1 in accordance with the present invention.

FIG. 4 is a right side view of a reducer according to the present invention with a maximum eccentricity;

FIG. 5 is a right side view of the reducing pipe provided by the present invention when the reducing pipe on the right side rotates 90 degrees

In the figure, a large diameter pipe 1, a seal ring 11, a small diameter pipe 2, an end cap 3, an escape circular hole 31, a rotary disk 4, an annular worm wheel 41, a worm member 5, a worm portion 51, a shaft portion 52, a threaded portion 53, a polygonal groove 531, and a nut 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the invention discloses a reducing pipe, which comprises a large-diameter pipe 1 and a small-diameter pipe 2 which are connected with each other, the reducing pipe further comprises an end cover 3 and a rotating disc 4, the small-diameter pipe 2 is eccentrically connected to the rotating disc 4, the rotating disc 4 is rotatably connected to the end part of the large-diameter pipe 1, so that the large-diameter pipe 1 is communicated with the small-diameter pipe 2, the end cover 3 is covered on the rotating disc 4 and is fixedly connected with the large-diameter pipe 1, and the distance between the axis of the large-diameter pipe 1 and the axis of the small-diameter pipe 2 can be adjusted by rotating the rotating disc 4.

It can be understood that, by adjusting the distance between the axis of the large-diameter pipe 1 and the axis of the small-diameter pipe 2, the different-diameter pipe can be adjusted to different eccentric states, so that the distortion of the pipelines during connection can be avoided, and the connection between the pipelines is more stable.

Preferably, the rotating disc 4 is eccentrically disposed on the large-diameter pipe 1.

Preferably, an annular worm wheel 41 is arranged on the outer ring of the rotating disc 4, a worm member 5 is rotatably arranged on the large-diameter pipe 1, the worm member 5 comprises a worm part 51, a shaft part 52 and a threaded part 53, the worm part 51 is meshed with the annular worm wheel 41, the threaded part 53 extends out of the large-diameter pipe 1, and a nut 6 is in threaded connection with the threaded part 53.

Preferably, a polygonal groove 531 is formed at one end of the screw part 53, which is far from the worm part 51.

Preferably, the axis of the large-diameter pipe 1 and the axis of the small-diameter pipe 2 can be aligned by rotating the rotary disk 4. It can be understood that when the rotating disk 4 and the small-diameter pipe 2 are eccentrically arranged, and the large-diameter pipe 1 and the rotating disk 4 are eccentrically arranged, the axis of the small-diameter pipe 2 and the axis of the large-diameter pipe 1 can be coincided by design.

Preferably, an avoiding circular hole 31 is formed in the end cover 3, the small-diameter pipe 2 penetrates through the avoiding circular hole 31, and the axis of the avoiding circular hole 31 coincides with the axis of the rotating disc 4.

Preferably, a sealing ring 11 is arranged at the contact surface of the rotating disc 4 and the large-diameter pipe 1.

The working mode of the invention is as follows: as shown in fig. 1 to 3, the rotating disk 4 can be driven to rotate by rotating the worm member 5, so as to adjust the distance between the axis of the small-diameter pipe 2 and the axis of the large-diameter pipe 1, as shown in fig. 4 and 5, which are right views of the small-diameter pipe 1 before and after adjustment, the distance between the axis of the small-diameter pipe 2 and the axis of the large-diameter pipe 1 in fig. 5 is smaller than the distance between the axis of the small-diameter pipe 2 and the axis of the large-diameter pipe 1 in fig. 4.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a reducing pipe, includes interconnect's big footpath pipe and path pipe, its characterized in that, reducing pipe still include end cover and rotary disk, path pipe off-centre is connected on the rotary disk, rotary disk swivelling joint is in big footpath nose portion, thereby makes big footpath pipe and path pipe intercommunication, the end cover lid is located the rotary disk, and with big footpath pipe fixed connection, through the rotation the rotary disk can be adjusted interval between the axis of big footpath pipe and the axis of path pipe.

2. The reducer according to claim 1, wherein the rotating disk is eccentrically disposed on the large-diameter pipe.

3. The reducing pipe according to claim 2, wherein an annular worm wheel is arranged on the outer ring of the rotating disc, a worm rod part is rotatably arranged on the large-diameter pipe, the worm rod part comprises a worm rod part, a shaft part and a threaded part, the worm rod part is meshed with the annular worm wheel, the threaded part extends out of the large-diameter pipe, and a nut is in threaded connection with the threaded part.

4. The reducer according to claim 3, wherein a polygonal groove is provided on an end of the threaded portion remote from the worm part.

5. The reducer according to claim 2, wherein the axis of the large-diameter pipe can be made to coincide with the axis of the small-diameter pipe by rotating the rotating disk.

6. The reducer according to claim 1, wherein an avoiding circular hole is formed in the end cover, the small-diameter pipe passes through the avoiding circular hole, and an axis of the avoiding circular hole coincides with an axis of the rotating disc.

7. The reducer according to claim 1, wherein a sealing ring is provided at a contact surface of the rotating disc and the large-diameter pipe.