Device for lap joint flange connection

Abstract

The utility model discloses a device for lap joint flange connection, and relates to the technical field of lap joint flanges. The connecting pipe comprises a connecting pipe body, a check ring is arranged at one end of the connecting pipe body, a first flange plate is connected to the surface of the connecting pipe body in a sliding mode, and a sliding groove is formed in one end of the connecting pipe body. According to the utility model, through the arrangement of the adjusting assembly, the lap joint flange is used as a connecting device between the pipelines at the two ends, the pipeline at one end needs to be butted and communicated with the pipeline at the other end, and when the distance between the two pipe orifices is longer, the fourth flange plate can be fixed on the surface of one pipe orifice; and when a certain distance is reserved between the third flange plate and the pipe orifice at the other end and the pipeline is inconvenient to move, the locking nut can be rotated, the distance of the second short section in the first short section is adjusted, and the locking nut is rotated again for fixation, so that the purpose of adjusting the length between the third flange plate and the fourth flange plate is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of loose flange, and specifically relates to a device for loose flange connection. Background Art

[0002] For the connection of the existing loose flange, two sections of water pipes are communicated. Since the distances between the pipe orifices of the two sections of water pipes are different, it is impossible to adjust according to the pipe orifice spacing during connection, thereby reducing the adaptability of the loose flange connection. At the same time, as a connection device between pipelines, there is a lack of filtration, so that there are certain impurities in the water flow when passing through the connection device.

[0003] Chinese Patent with publication number CN203240157U discloses a loose flange for pipe connection. A welding ring is welded on one end pipe orifice of the pipe. A loose flange is sleeved on the pipe near the welding ring. The loose flange is a rotatable loose flange. The diameter of the loose flange is larger than that of the welding ring. The bolt holes opened on the loose flange are exposed outside the welding ring. The loose flange of the utility model can rotate arbitrarily, so that the positions of the bolt holes can be rotated according to needs, which is convenient for connecting with the external pipeline flange.

[0004] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a device for loose flange connection, which solves the problems raised in the above background art that when communicating two sections of water pipes, due to the different distances between the pipe orifices of the two sections of water pipes, it is impossible to adjust according to the pipe orifice spacing during connection, thereby reducing the adaptability of the loose flange connection. At the same time, as a connection device between pipelines, there is a lack of filtration, so that there are certain impurities in the water flow when passing through the connection device.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is as follows:

[0007] A device for loose flange connection includes: a connecting pipe, a retaining ring is arranged at one end of the connecting pipe, a first flange is slidably connected to the surface of the connecting pipe, a chute is opened inside one end of the connecting pipe, and a filtering component for filtering impurities in the water source is slidably connected inside the chute. The surface of the first flange is provided with a second flange through bolts. One side of the second flange is connected through a short pipe, and one end of the short pipe is connected through an adjusting component for adjusting the connection length.

[0008] Optionally, the filtering component includes a cylindrical frame slidably connected inside the chute, and a filtering disk for filtering impurities is arranged at one end inside the cylindrical frame.

[0009] Optionally, the adjusting assembly includes a first short section connected through one end of the short pipe. One end of the first short section is threadedly connected with a locking nut, and the inside of the locking nut is threadedly connected with a second short section.

[0010] Optionally, an annular groove is formed on the surface of one end of the connecting pipe, and an annular pipe is clamped inside the annular groove. One end of the annular pipe is fixedly connected to the other side of the second flange.

[0011] Optionally, one end of the second short section is provided with a third flange, and a plurality of first through holes are formed on the surface of the third flange in an annular array.

[0012] Optionally, the other end of the connecting pipe is provided with a fourth flange, and a plurality of second through holes are formed on the surface of the fourth flange in an annular array.

[0013] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below:

[0014] 1. Through the settings of the filtering assembly and the adjusting assembly, the loose flange connection is used as a connecting device between two end pipes. When it is necessary to dock and communicate one end pipe with the other end pipe, when the distance between the two pipe orifices is relatively long, the fourth flange can be first fixed on the surface of one of the pipe orifices. When there is a certain distance between the third flange and the other pipe orifice and the movement of the pipe is inconvenient, at this time, the locking nut can be rotated, and the distance of the second short section inside the first short section can be adjusted, and then the locking nut is rotated again for fixation, so as to achieve the purpose of adjusting the length between the third flange and the fourth flange until the third flange is docked with the other pipe orifice, thereby improving the adaptability of the loose flange connection. When the water flow passes through the inside of the connecting pipe, impurities can be filtered by the filter disc, and the staff can regularly remove the cylindrical frame from the inside of the connecting pipe by disassembling the first flange and the second flange to clean the internal impurities, improving the convenience of cleaning and at the same time improving the quality of the water flow passing through.

[0015] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In the attached

[0017] In the figure:

[0018] Figure 1 is a schematic diagram of the overall structure;

[0019] Figure 2 Schematic diagram of the connecting pipe structure;

[0020] Figure 3 Schematic diagram of the adjusting component structure;

[0021] Figure 4 Schematic diagram of the filtering component structure.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Connecting pipe; 2. Retaining ring; 3. First flange; 4. Filtering component; 41. Cylindrical frame; 42. Filtering disc; 5. Second flange; 6. Short pipe; 7. Adjusting component; 71. First short section; 72. Locking nut; 73. Second short section; 8. Annular groove; 9. Annular pipe; 10. Third flange; 11. Fourth flange.

[0024] It should be noted that these attached drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0025] Now, the present utility model will be further described in detail with reference to the attached drawings.

[0026] Please refer to Figures 1-4 As shown in the figure, in this embodiment, a device for loose flange connection is provided, including: a connecting pipe 1, a retaining ring 2 is arranged at one end of the connecting pipe 1, a first flange 3 is slidably connected to the surface of the connecting pipe 1, a chute is opened inside one end of the connecting pipe 1, and a filtering component 4 for filtering impurities in the water source is slidably connected inside the chute. The surface of the first flange 3 is provided with a second flange 5 through bolts. One side of the second flange 5 is connected through a short pipe 6. One end of the short pipe 6 is connected through an adjusting component 7 for adjusting the connection length. As a connection device between two ends of a pipeline, it is necessary to dock and communicate one end of the pipeline with the other end. When the distance between the two pipe orifices is relatively long, the fourth flange 11 can be fixed on the surface of one of the pipe orifices first. When there is a certain distance between the third flange 10 and the other pipe orifice, and it is inconvenient to move the pipeline, at this time, the locking nut 72 can be rotated, and the distance of the second short section 73 inside the first short section 71 can be adjusted, and then the locking nut 72 can be rotated again for fixation, so as to achieve the purpose of adjusting the length between the third flange 10 and the fourth flange 11 until the third flange 10 is docked with the other pipe orifice, thereby improving the adaptability of the loose flange connection.

[0027] One application of this embodiment is as follows: when water flows through the inside of the connecting pipe 1, impurities can be filtered down by the filter disc 42, and the staff can regularly remove the cylindrical frame 41 from the inside of the connecting pipe 1 by disassembling the first flange 3 and the second flange 5, clean the impurities inside, improve the convenience of cleaning, and at the same time improve the quality of the water flow passing through. It should be noted that all electrical equipment involved in this application can be powered by a storage battery or an external power source.

[0028] As Figure 1 shown, an annular groove 8 is formed on the surface of one end of the connecting pipe 1 of this embodiment, and an annular pipe 9 is clamped inside the annular groove 8. One end of the annular pipe 9 is fixedly connected to the other side of the second flange 5. The settings of the annular groove 8 and the annular pipe 9 can improve the sealing performance between the first flange 3 and the second flange 5.

[0029] As Figure 2 shown, one end of the second short section 73 of this embodiment is provided with a third flange 10, and a plurality of first through holes are formed on the surface of the third flange 10 in an annular array. The other end of the connecting pipe 1 is provided with a fourth flange 11, and a plurality of second through holes are formed on the surface of the fourth flange 11 in an annular array. The settings of the third flange 10 and the fourth flange 11 can improve the convenience of connecting to the external water pipe.

[0030] Embodiment 1:

[0031] In this embodiment, as Figure 3 shown, the adjusting assembly 7 includes a first short section 71 connected through one end of the short pipe 6. One end of the first short section 71 is threadedly connected with a locking nut 72, and a second short section 73 is threadedly connected inside the locking nut 72. The loose flange connection is used as a connecting device between two ends of the pipeline. When it is necessary to dock and communicate one end of the pipeline with the other end, when the distance between the two ends of the pipe is relatively long, the fourth flange 11 can be fixed on the surface of one end of the pipe first. When there is a certain distance between the third flange 10 and the other end of the pipe, and the movement of the pipeline is inconvenient, the locking nut 72 can be rotated at this time, and the distance of the second short section 73 inside the first short section 71 can be adjusted, and the locking nut 72 can be rotated again for fixing, so as to achieve the purpose of adjusting the length between the third flange 10 and the fourth flange 11 until the third flange 10 is docked with the other end of the pipe, thereby improving the adaptability of the loose flange connection.

[0032] Embodiment 2:

[0033] In this embodiment, as Figure 4As shown in the figure, the filtering component 4 includes a cylindrical frame 41 slidably connected inside the chute. At one end inside the cylindrical frame 41, a filter disc 42 for filtering impurities is provided. When water flows through the inside of the connecting pipe 1, the impurities can be filtered by the filter disc 42. And the staff can regularly remove the first flange 3 and the second flange 5 to pull out the cylindrical frame 41 from the inside of the connecting pipe 1 to clean the impurities inside, improving the convenience of cleaning and at the same time improving the quality of the water flow passing through.

[0034] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A device for loose flange connection, characterized in that: include: A connecting pipe (1), one end of which is provided with a retaining ring (2), a first flange (3) being slidably connected to the surface of the connecting pipe (1), a slide groove being provided inside one end of the connecting pipe (1), a filter assembly (4) for filtering impurities inside a water source being slidably connected inside the slide groove, a second flange (5) being provided on the surface of the first flange (3) by means of bolts, a short pipe (6) being through-connected to one side of the second flange (5), and an adjustment assembly (7) for adjusting the connection length being through-connected to one end of the short pipe (6).

2. A device for slip-on flange connection according to claim 1, characterized in that: The filter assembly (4) comprises a cylindrical frame (41) slidably connected to the interior of the slide groove, and a filter disc (42) for filtering impurities is provided at one end of the interior of the cylindrical frame (41).

3. The device for loose flange connection according to claim 1, characterized in that: The adjustment assembly (7) comprises a first short section (71) connected to one end of the short tube (6); one end of the first short section (71) is threadedly connected to a locking nut (72); and the interior of the locking nut (72) is threadedly connected to a second short section (73).

4. The device for slip-on flange connection according to claim 1, characterized in that: An annular groove (8) is provided on the surface of one end of the connecting pipe (1), an annular pipe (9) is clamped inside the annular groove (8), and one end of the annular pipe (9) is fixedly connected to the other side of the second flange (5).

5. The device for slip-on flange connection according to claim 3, characterized in that: A third flange (10) is provided at one end of the second short section (73), and a plurality of first through holes are provided on the surface of the third flange (10) in an annular array.

6. The device for slip-on flange connection according to claim 1, characterized in that: The other end of the connecting pipe (1) is provided with a fourth flange (11), and a plurality of second through holes are provided on the surface of the fourth flange (11) in a circular array.

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