Reducing flange

Abstract

The utility model belongs to the technical field of pipeline connecting pieces, and particularly relates to a reducing flange which comprises a flange pipe, a large flange and a small flange are fixedly arranged at the two ends of the flange pipe respectively, the inner wall, close to the large flange, of the interior of the flange pipe is a large-pipe-diameter space, and the inner wall, close to the small flange, of the interior of the flange pipe is a small-pipe-diameter space. A fixed ring is fixedly arranged in the large-pipe-diameter space, a plurality of fixed blades are fixedly arranged on the fixed ring in an annular array mode, a rotating ring is rotationally arranged on the fixed ring through a bearing, a plurality of movable blades are fixedly arranged in the rotating ring in an annular array mode, and the opposite faces of the movable blades and the fixed blades are attached. The direction of the movable blade is inclined, the movable blade can rotate when fluid flows, a rotating rod is fixedly arranged at the position of a center shaft of the movable blade, a scraping component is fixedly arranged on the rotating rod, and through cooperation of the structures, impurities flowing through the variable-diameter flange are cut clearly, and it is guaranteed that a pipeline is unblocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline connectors, in particular to a reducing flange. Background Art

[0002] Reducer flanges, also known as reducing flanges, have an inner diameter that is different from that of standard flanges. They are usually used to solve the problem that standard flanges cannot be matched with pipe fittings and pipelines in engineering. They are widely used in industrial production, semiconductor manufacturing, and food processing.

[0003] The existing reducer flange is mainly composed of the following parts: flange, pipe, bolt, sealing gasket. The working principle is: when connecting two pipes of different diameters, the reducer flange achieves a smooth transition between the two pipes through the reducer inside it. At the same time, the two flanges are tightly fitted through the tightening action of the bolts, and the gap between the flanges is filled with a sealing gasket, thereby achieving the sealing of the pipeline system.

[0004] The reducer flange in the existing technology has the following disadvantages: in industrial sewage wastewater pipelines that are prone to clogging, a large amount of solid particles, sediments or other impurities flow in the pipeline, causing pipeline clogging, especially when the fluid in a small-diameter pipeline enters a large-diameter pipeline through a reducer flange, the flow rate of the fluid will decrease. The decrease in flow rate causes impurities to easily accumulate in the reducer flange, causing pipeline clogging; therefore, a reducer flange is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the shortcomings of existing reducer flanges, a reducer flange is proposed to solve the problem that in industrial sewage wastewater pipelines that are prone to clogging, a large number of solid particles, sediments or other impurities flow in the pipelines, causing pipeline clogging, especially when the fluid in a small-diameter pipeline enters a large-diameter pipeline through a reducer flange, the flow rate of the fluid will decrease. The reduction in flow rate causes impurities to easily accumulate in the reducer flange, causing pipeline clogging.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a variable-diameter flange described in the utility model comprises a flange pipe, a large flange and a small flange are fixedly arranged at both ends of the flange pipe respectively, the inner wall of the interior of the flange pipe close to the large flange is a large-diameter space, the inner wall of the interior of the flange pipe close to the small flange is a small-diameter space, a fixing ring is fixedly arranged inside the large-diameter space, a plurality of fixed blades are fixedly arranged in an annular array on the fixing ring, a rotating ring is rotatably arranged on the fixing ring through a bearing, a plurality of moving blades are fixedly arranged in an annular array inside the rotating ring, the moving blades are fitted with the opposite surfaces of the fixed blades, the direction of the moving blades is inclined, and the moving blades are rotated when the fluid flows, a rotating rod is fixedly arranged at the central axis position of the moving blade, and a scraping member is fixedly arranged on the rotating rod.

[0007] Preferably, the scraping member comprises a connecting rod, a shell is fixedly provided at one end of the connecting rod, an insertion rod is slidably provided inside the shell, a spring is fixedly provided between the insertion rod and the inner wall of the shell, and a scraper is fixedly provided at one end of the insertion rod.

[0008] Preferably, the side of the scraper close to the inner wall of the large diameter space is in a pointed cone shape.

[0009] Preferably, a sealing groove is fixedly formed on one side of the large flange and the small flange, and an O-ring is installed in the sealing groove.

[0010] Preferably, a plurality of assembly holes are fixedly provided on the large flange and the small flange.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a reducer flange, in which a fluid flows, and at the same time, the fluid flows through the reducer flange with various impurities, and the flow of the fluid drives the movable blade to rotate, and the movable blade cooperates with the fixed blade to effectively cut or break solid particles, sediments, fibers, tree roots, grease and other easily blocked objects in the pipeline, ensuring that the fluid in the pipeline can flow smoothly, and no external power drive is required to save energy;

[0013] When the fluid flows to the large diameter space, the flow rate is low, and impurities are easily accumulated on the inner wall of the large diameter space, which will cause blockage and corrosion problems over time, affecting the normal use of the reducer flange. When the movable blade rotates, the scraping component is driven to rotate through the rotating rod, so that the scraper scrapes off the impurities accumulated on the inner wall of the large diameter space to prevent their accumulation. With the cooperation of the spring, the inserted rod pushes the scraper to always be close to the inner wall of the large diameter space. Even if it is worn, it will not affect the cleaning effect. The pointed cone-shaped scraper can scrape off the impurities on the inner wall of the large diameter space very well, thereby improving the scraping and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a three-dimensional picture of the whole;

[0016] Figure 2 It is a cross-sectional view of the whole;

[0017] Figure 3 is a partial cross-sectional enlarged view of a scraping member;

[0018] Legend:

[0019] 1. Flange pipe; 2. Large flange; 3. Small flange; 4. Large diameter space; 5. Small diameter space; 6. Fixed ring; 7. Fixed blade; 8. Rotating ring; 9. Moving blade; 10. Rotating rod; 11. Scraping member; 111. Connecting rod; 112. Shell; 113. Insert rod; 114. Spring; 115. Scraper; 12. Sealing groove; 13. Assembly hole. 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 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.

[0021] Specific examples are given below.

[0022] See also Figure 1-Figure 3 The utility model discloses a variable diameter flange, comprising a flange pipe 1, wherein a large flange 2 and a small flange 3 are fixedly arranged at both ends of the flange pipe 1, wherein the inner wall of the flange pipe 1 close to the large flange 2 is a large diameter space 4, and the inner wall of the flange pipe 1 close to the small flange 3 is a small diameter space 5, wherein a fixing ring 6 is fixedly arranged inside the large diameter space 4, wherein a plurality of fixed blades 7 are fixedly arranged in an annular array on the fixing ring 6, wherein a rotating ring 8 is rotatably arranged on the fixing ring 6 through a bearing, wherein a plurality of moving blades 9 are fixedly arranged in an annular array inside the rotating ring 8, wherein the moving blades 9 are fitted with the opposite surfaces of the fixed blades 7, and wherein the moving blades 9 are fitted with the opposite surfaces of the fixed blades 7, and wherein the moving blades 9 are fixedly arranged in an annular array inside the rotating ring 8. The direction of the blade 9 is inclined, and the movable blade 9 will rotate when the fluid flows. A rotating rod 10 is fixedly provided at the central axis position of the movable blade 9, and a scraping component 11 is fixedly provided on the rotating rod 10. During operation, when the reducer flange is assembled between the two butted pipes, the fluid flows in the reducer flange, and at the same time, the fluid flows through the reducer flange with various impurities. The flow of the fluid drives the movable blade 9 to rotate. The movable blade 9 cooperates with the fixed blade 7 to effectively cut or break solid particles, sediments, fibers, tree roots, grease and other easily blocked objects in the pipeline, ensuring that the fluid in the pipeline can flow smoothly, and no external power drive is required to save energy.

[0023] Furthermore, the scraping member 11 includes a connecting rod 111, one end of which is fixedly provided with a shell 112, a plug rod 113 is slidably provided in the shell 112, a spring 114 is fixedly provided between the plug rod 113 and the inner wall of the shell 112, and a scraper 115 is fixedly provided at one end of the plug rod 113. During operation, when the fluid flows to the large-diameter space 4, the flow rate is low, and impurities are easily accumulated on the inner wall of the large-diameter space 4, which causes blockage and corrosion problems over time, affecting the normal use of the variable-diameter flange. When the movable blade 9 rotates, the scraping member 11 is driven to rotate through the rotating rod 10, so that the scraper 115 scrapes off the impurities accumulated on the inner wall of the large-diameter space 4 to prevent them from accumulating, and with the cooperation of the spring 114, the plug rod 113 pushes the scraper 115 to always be close to the inner wall of the large-diameter space 4, and even if it is worn, it does not affect the cleaning effect.

[0024] Furthermore, the scraper 115 has a pointed cone shape on one side close to the inner wall of the large diameter space 4. When working, the pointed cone-shaped scraper 115 can effectively scrape off impurities on the inner wall of the large diameter space 4, thereby improving the scraping and cleaning effect.

[0025] Furthermore, a sealing groove 12 is fixedly opened on one side of the large flange 2 and the small flange 3, and the sealing groove 12 is used to install an O-ring. During operation, when the large flange 2 and the small flange 3 are connected to an external pipe that needs to be connected, the O-ring installed in the sealing groove 12 is located between the two flanges. When the bolts are tightened, the O-ring is compressed, thereby filling the tiny gap between the flanges to achieve a sealing effect.

[0026] Furthermore, a plurality of assembly holes 13 are fixedly opened on the large flange 2 and the small flange 3. During operation, when the reducer flange is installed, the large flange 2 and the small flange 3 are butt-jointed and fixed to the flange on the external pipe by inserting the fastening bolts into the assembly holes.

[0027] Working principle: When installing the reducer flange, the large flange 2 and the small flange 3 are connected and fixed to the flange on the external pipe by inserting the fastening bolts into the assembly holes; when the large flange 2 and the small flange 3 are connected to the external pipe that needs to be connected, the O-ring installed in the sealing groove 12 is located between the two flanges. When the bolts are tightened, the O-ring is compressed, thereby filling the tiny gap between the flanges to achieve a sealing effect; when the reducer flange is assembled between the two butted pipes, the fluid flows in the reducer flange, and at the same time, the fluid flows through the reducer flange with various impurities. The flow of the fluid drives the movable blade 9 to rotate, and the movable blade 9 cooperates with the fixed blade 7 to effectively cut or crush solid particles, sediments, fibers, tree roots, grease, etc. in the pipeline that are easy to clog. The scraper 115 is a kind of scraper which is used to remove impurities from the inner wall of the large diameter space 4. ...

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A reducing flange, characterized in that: The invention comprises a flange pipe (1), wherein a large flange (2) and a small flange (3) are fixedly arranged at both ends of the flange pipe (1), the inner wall of the flange pipe (1) close to the large flange (2) is a large diameter space (4), and the inner wall of the flange pipe (1) close to the small flange (3) is a small diameter space (5), a fixing ring (6) is fixedly arranged inside the large diameter space (4), a plurality of fixed blades (7) are fixedly arranged on the fixing ring (6) in an annular array, a rotating ring (8) is rotatably arranged on the fixing ring (6) through a bearing, a plurality of moving blades (9) are fixedly arranged in an annular array inside the rotating ring (8), the moving blades (9) are fitted with the opposite surfaces of the fixed blades (7), the direction of the moving blades (9) is inclined, and the moving blades (9) are rotated when the fluid flows, a rotating rod (10) is fixedly arranged at the central axis position of the moving blade (9), and a scraping member (11) is fixedly arranged on the rotating rod (10).

2. The variable diameter flange according to claim 1, characterized in that: The scraping member (11) comprises a connecting rod (111), one end of which is fixedly provided with a shell (112), an insertion rod (113) is slidably provided in the shell (112), a spring (114) is fixedly provided between the insertion rod (113) and the inner wall of the shell (112), and a scraper (115) is fixedly provided at one end of the insertion rod (113).

3. The variable diameter flange according to claim 2, characterized in that: The side of the scraper (115) close to the inner wall of the large diameter space (4) is in a pointed cone shape.

4. The variable diameter flange according to claim 1, characterized in that: A sealing groove (12) is fixedly provided on one side of the large flange (2) and the small flange (3), and an O-type sealing ring is installed in the sealing groove (12).

5. The variable diameter flange according to claim 1, characterized in that: A plurality of assembly holes (13) are fixedly provided on the large flange (2) and the small flange (3).

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