An assembled communicating pipe

Abstract

This invention belongs to the field of pipelines, specifically relating to a prefabricated connecting pipeline to solve the problem that existing tee pipes and inner pipes, which are integrally cast, are inconvenient for production, processing, and testing. It is used to connect a filter into a pipeline and includes a main pipe body and an inner pipe. The inner pipe is installed inside the main pipe body and is detachably and sealingly connected to it. The main pipe body has at least three openings, and the inner pipe and the main pipe body form independent water flow channels. This invention allows for the installation and disassembly of the inner pipe, simplifying the molds used in the production of the main pipe body and inner pipe, facilitating processing, improving product quality, and enabling convenient testing after processing to ensure the effectiveness of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of pipelines, and more specifically, relates to a prefabricated connecting pipeline. Background Technology

[0002] Filters are an indispensable device in pipelines that transport media. Filters can remove impurities from the media.

[0003] A three-way pipe is available, with a filter installed at one opening. The three-way pipe is connected to the pipeline through the other two openings. To facilitate the medium at the inlet end passing through the filter and then returning from the filter to the three-way pipe, and then discharging from the other opening, the three-way pipe has an internal pipe for connecting to the filter. One end of the internal pipe is connected to one opening, and the other end extends to the other opening (e.g., ...). Figure 1 (As shown) It is connected to the filter. Existing tee pipes are usually made by one-piece casting, and the inner pipe and the tee pipe are set as a whole structure.

[0004] The existing related technologies have the following problems: copper castings are prone to shrinkage, porosity, slag inclusions, cracks and other problems during production. When the inner tube of the tee is an integral structure, its complex structure makes it difficult to inspect. Moreover, the structure of the corresponding mold used in the processing of the tee is also complex, which is not conducive to production and processing, directly affecting the product quality of the processed copper castings and reducing the production qualification rate. Summary of the Invention

[0005] To facilitate the production, processing, and testing of tee pipes, this invention provides an assembled connecting pipe.

[0006] The prefabricated connecting pipe provided by this invention adopts the following technical solution:

[0007] An assembled connecting pipe includes a pipe body and an inner pipe, wherein the inner pipe is installed inside the pipe body and is detachably and sealed to the pipe body, wherein the pipe body has at least three openings, and the inner pipe and the pipe body form an independent water flow channel.

[0008] By adopting the above technical solution, the inner pipe can be detachably installed on the pipe body. The inner pipe can be installed and disassembled, which simplifies the molds used in the production and processing of the pipe body and the inner pipe, making it easier to process, improving product quality, and facilitating testing after processing to ensure the effectiveness of the equipment.

[0009] As a further preferred embodiment, the opening includes a first opening, a second opening, and a third opening, wherein the second opening communicates with the inner tube, and the end of the inner tube extends to the first opening.

[0010] By adopting the above technical solution, the filter is installed at the first opening, and the medium enters the inner tube from the second opening, thereby passing through the filter for filtration. The medium then enters the third opening from the first opening, thus achieving filtration of the medium.

[0011] As a further preferred embodiment, the opening further includes at least one fourth opening, which communicates with the second or third opening.

[0012] By adopting the above technical solution, adding a fourth opening and increasing the number of connecting branches of the main pipeline, it is possible to increase the transport of the medium to be filtered, or to enable the filtered medium to be diverted.

[0013] As a further preferred embodiment, a connecting member is detachably connected to the second opening that communicates with the inner pipe. The inner pipe is fixed by the connecting member, and the inner pipe is connected to the second opening through the connecting member. The connecting member is in a sealing fit with the main body of the pipe and the inner pipe.

[0014] By adopting the above technical solution, after the inner pipe is installed, it is fixed by installing a connecting piece, which improves the stability of the inner pipe after installation. At the same time, the inner pipe is connected to the second opening through the connecting piece, which improves the stability of the connection and the sealing performance, making the medium more stable during transportation.

[0015] As a further preferred embodiment, the connecting element is a connecting pipe, which is threadedly connected to the main body of the pipe. Preferably, the inner wall of the connecting pipe has several grooves, and the connecting pipe abuts against the outer wall of the inner pipe.

[0016] By adopting the above technical solution, the connecting pipe is installed at the second opening, so that the connecting pipe abuts against the outer wall of the inner pipe, thereby fixing the position of the inner pipe. The structure is simple, the installation is convenient and quick, and the slot makes it easier to rotate the connecting pipe.

[0017] As a further preferred embodiment, a fixing ring is provided on the side wall of the inner tube, and the connecting tube is inserted into and adapted to the fixing ring.

[0018] By adopting the above technical solution, the fixing ring on the connecting pipe and the inner pipe is inserted, which further improves the fixing effect of the inner pipe and can prevent the inner pipe from falling off.

[0019] As a further preferred embodiment, the connecting pipe is provided with a first sealing ring that is interference-fitted with the pipe body, and the fixing ring is provided with a second sealing ring that is interference-fitted with the fixing ring. Preferably, the connecting pipe is provided with a first limiting groove for placing the first sealing ring, and the fixing ring is provided with a second limiting groove for placing the second sealing ring.

[0020] By adopting the above technical solution, after the connecting pipe is installed, the first sealing ring improves the sealing between the connecting pipe and the main pipe body, and the second sealing ring improves the sealing between the connecting pipe and the fixed ring, reducing media leakage. This improves the sealing between the inner pipe and the second opening, enhances the filtration effect of the media, and improves the stability of the first sealing ring through the first limiting groove and the stability of the second sealing ring through the second limiting groove.

[0021] As a further preferred embodiment, a threaded ring is coaxially provided at the end of the connecting pipe, and a threaded sleeve is provided on the side wall of the inner pipe, wherein the threaded ring and the threaded sleeve are threadedly connected and adapted.

[0022] By adopting the above technical solution, when the connecting pipe rotates, the external thread connects with the first internal thread, allowing the connecting pipe to be installed inside the pipe body. At the same time, the threaded ring and the threaded sleeve are threadedly connected, allowing the inner pipe and the connecting pipe to be connected, thereby connecting the pipe body, the inner pipe and the connecting pipe into a whole, and the connection is more stable.

[0023] As a further preferred embodiment, the connecting pipe is provided with two third sealing rings that are respectively interference-fitted with the pipe body and the threaded sleeve. Preferably, the connecting pipe is provided with a third limiting groove for placing the third sealing rings.

[0024] By adopting the above technical solution, after the connecting pipe is installed, a third sealing ring improves the sealing between the connecting pipe and the main pipe body, and another third sealing ring improves the sealing between the connecting pipe and the inner pipe, reducing media leakage. This improves the sealing between the inner pipe and the second opening, enhances the filtration effect of the media, and improves the stability of the third sealing ring through the third limiting groove.

[0025] As a further preferred embodiment, the inner tube extends to the outside of the first opening, and the first opening is provided with a mounting groove for connecting the filter.

[0026] By adopting the above technical solution, the inner pipe extends to the outside of the first opening to facilitate accurate connection between the filter and the inner pipe. At the same time, the installation groove is set to enable the filter to be stably connected to the main body of the pipe, thereby improving the connection stability between the filter and the inner pipe.

[0027] In summary, the present invention has at least the following beneficial technical effects:

[0028] 1. The inner pipe can be detachably installed on the pipe body. The inner pipe can be installed and disassembled, which makes the molds for the production and processing of the pipe body and the inner pipe simple, facilitates processing, improves product quality, and facilitates testing after processing, ensuring the effectiveness of the equipment.

[0029] 2. The positioning structure enables the inner pipe to be quickly positioned and ensures its orientation during installation, so that the inner pipe can be accurately connected to the filter, thus improving connection efficiency.

[0030] 3. After the inner pipe is installed, it is fixed by installing the connecting fitting, so that the main pipe, the inner pipe and the connecting fitting are connected into a whole, which improves the stability of the inner pipe after installation. At the same time, the inner pipe is connected to the second opening through the connecting fitting, which improves the stability of the connection and the sealing is better, making the medium more stable during transportation. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the cross-sectional structure of an existing tee pipe;

[0032] Figure 2 This is a schematic diagram of the overall cross-sectional structure of Example 1;

[0033] Figure 3 Figure 2 Enlarged diagram of section A in the middle;

[0034] Figure 4 This is a schematic diagram of the overall structure of Example 2;

[0035] Figure 5 yes Figure 4 Enlarged schematic diagram of section B in the middle.

[0036] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0037] 1. Pipe body; 11. First opening; 12a. Second opening; 12b. Third opening; 121. First internal thread; 13. Positioning boss; 14. Connecting ring; 141. Second internal thread; 15. Mounting groove; 16. Fourth opening; 2. Inner pipe; 21. Positioning groove; 22. Fixing ring; 221. Second sealing ring; 222. Second limiting groove; 23. Threaded sleeve; 3. Connecting pipe; 31. External thread; 32. Slot; 33. First sealing ring; 34. First limiting groove; 35. Threaded ring; 36. Third sealing ring; 37. Third limiting groove. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0043] Figure 1 For existing tee pipe internal pipe connection structures, when the tee pipe and its internal pipe are an integral structure, the complex structure makes it inconvenient to inspect; and the corresponding mold used in the processing of the tee pipe will also have a complex structure, which is not conducive to production and processing.

[0044] Example 1:

[0045] This invention discloses a prefabricated connecting pipe.

[0046] Reference Figure 2-3 An assembled connecting pipe for connecting a filter into a pipeline includes a pipe body 1, an inner pipe 2 and a connecting component. The pipe body 1 has at least three openings. One end of the inner pipe 2 is detachably and sealed to the inner cavity of the pipe body 1. The inner pipe 2 and the pipe body 1 form an independent water flow channel.

[0047] The inner tube 2 and the main body of the pipe are separate structures, which makes the mold simple and easy to process during the production and processing of the main body of the pipe 1 and the inner tube 2. In actual processing, the hot stamping process is adopted, which greatly improves the efficiency of hot stamping and die casting, improves product quality, and facilitates inspection after processing.

[0048] In this embodiment, the openings include a first opening 11, a second opening 12a, and a third opening 12b. The filter is connected through the first opening 11. The second opening 12a and the third opening 12b are used to connect the main body of the pipe to the pipeline. The first opening 11, the second opening 12a, and the third opening 12b are all connected. The opening direction of the first opening 11 is perpendicular to the opening direction of the second opening 12a and the third opening 12b. The inner pipe 2 is connected to the second opening 12a. The inner pipe 2 is connected to another second opening 12 through the first opening 11. After the filter is installed, the first channel and the second channel are connected. The inner pipe 2 is connected to the filter. The medium enters from the second opening 12a, passes through the inner pipe 2, enters the filter, is filtered, and then is discharged from the third opening 12b.

[0049] The opening also includes at least one fourth opening 16, which is connected to the second opening 12a or the third opening 12b. The number of fourth openings 16 can be set according to the needs of pipeline connection. Increasing the number of fourth openings 16 increases the number of branches connected to the main pipeline 1, which can increase the delivery of the medium to be filtered or enable the filtered medium to be diverted.

[0050] In other embodiments, the third openings 12b of the two pipe bodies 1 can be connected, and the two third openings 12b can be connected to the pipeline through a fourth opening 16. Both pipe bodies 1 are provided with an inner pipe 2 and a filter, so that the media in different pipelines can be filtered through different filters and then converge from the third opening 12b and be discharged from the fourth opening 16.

[0051] In addition, a branch can be set at the end of the inner pipe 2 away from the main pipe 1, so that the inner pipe 2 can be connected to multiple filters. When the medium in the main pipe 1 enters the inner pipe 2, it is filtered by multiple filters, thereby improving the filtration efficiency and effect.

[0052] To facilitate the installation of the main body 1 of the pipeline in the pipeline, a connecting ring 14 is fixedly connected to both the second opening 12a and the third opening 12b. The inner wall of the connecting ring 14 is provided with a second internal thread 141. The connecting ring 14 is coaxially arranged with the second opening 12a or the third opening 12b, and the diameter of the connecting ring 14 is larger than the diameter of the second opening 12a or the third opening 12b. During installation, first rotate the pipeline in the pipeline so that the pipeline is threadedly connected to the connecting ring 14. The pipeline can be rotated to abut against the valve body, so that the lengths of the pipelines connected to both ends of the main body 1 are the same. Then, the pipeline is fixedly connected to the pipeline. A flange can be used for fixing, thereby realizing the installation of the main body 1 of the pipeline and allowing the medium in the pipeline to flow through the main body 1 of the pipeline.

[0053] After installation, the inner pipe 2 is coaxially arranged with the first opening 11. To enable the inner pipe 2 to be installed quickly and accurately, a positioning structure for fixing the relative position is provided between the pipe body 1 and the inner pipe 2. The positioning structure includes a positioning boss 13 integrally formed with the pipe body 1. The bottom of the inner pipe 2 is provided with a positioning groove 21 that is compatible with the positioning boss 13. When installing the inner pipe 2, the positioning boss 13 is inserted into the positioning groove 21. After the inner pipe 2 is installed, it extends to the outside of the first opening 11 so that the filter can be accurately connected to the inner pipe 2. The peripheral wall of the first opening 11 is provided with an installation groove 15 for connecting the filter. After the filter is installed, it can be fixed by embedding the flange into the installation groove 15, so that the filter can be stably connected to the pipe body 1.

[0054] After the inner pipe 2 is installed, in order to fix the inner pipe 2 and connect the inner pipe 2 to the second opening 12a, a connecting piece is detachably connected to the second opening 12a. When the connecting piece is installed, the inner pipe 2 can be fixed to the pipe body 1, and the inner pipe 2 is connected to the second opening 12a through the connecting piece. The connecting piece and the pipe body 1 are sealed together, and the connecting piece and the inner pipe 2 are sealed together.

[0055] Specifically, the connecting component is a connecting pipe 3. The outer wall of the connecting pipe 3 is provided with an external thread 31, and the inner wall of the second opening 12a is provided with a first internal thread 121. The external thread 31 and the first internal thread 121 are connected and adapted. The connecting pipe 3 is rotated to abut against the outer wall of the inner pipe 2, which can fix the inner pipe 2. In order to facilitate the rotation of the connecting pipe 3, several slots 32 are provided on the inner wall of the connecting pipe 3. At the same time, a fixing ring 22 is fixedly connected to the side wall of the inner pipe 2. The fixing ring 22 is connected to the inner pipe 2. When the inner pipe 2 is installed, the fixing ring 22 is coaxially set with the second opening 12a. The connecting pipe 3 and the fixing ring 22 are inserted and adapted. After the connecting pipe 3 is rotated, the connecting pipe 3 is inserted into the fixing ring 22 on the inner pipe 2, which further completes the fixation of the inner pipe 2 and prevents the inner pipe 2 from falling off. The second opening 12a is connected to the inner pipe 2 through the connecting pipe 3.

[0056] A first sealing ring 33 is provided on the connecting pipe 3, and a first limiting groove 34 for placing the first sealing ring 33 is provided on the connecting pipe 3. A second sealing ring 221 is provided on the fixing ring 22, and a second limiting groove 222 for placing the second sealing ring 221 is provided on the fixing ring 22. The first sealing ring 33 is interference-fitted with the pipe body 1, and the second sealing ring 221 is interference-fitted with the fixing ring 22. When the connecting pipe 3 and the inner pipe 2 are installed, the first sealing ring 33 is located between the connecting pipe 3 and the pipe body 1, and the second sealing ring 221 is located between the connecting pipe 3 and the fixing ring 22. The first sealing ring 33 improves the sealing between the connecting pipe 3 and the pipe body 1, and the second sealing ring 221 improves the sealing between the connecting pipe 3 and the fixing ring 22, reducing the leakage of the medium. This improves the sealing between the inner pipe 2 and the second opening 12a, allowing the medium to enter the filter for filtration more effectively.

[0057] Example 2:

[0058] Reference Figure 4-5 The difference between this embodiment and embodiment 1 is that a threaded ring 35 is coaxially fixedly connected to the end of the connecting pipe 3 away from the external thread 31, and a threaded sleeve 23 is fixedly connected to the side wall of the inner pipe 2. The threaded sleeve 23 communicates with the inner pipe 2. When the inner pipe 2 is installed, the threaded sleeve 23 is coaxially set with the second opening 12a, and the threaded ring 35 and the threaded sleeve 23 are threadedly connected and adapted. When the connecting pipe 3 rotates, the external thread 31 connects with the first internal thread 121, so that the connecting pipe 3 is installed in the pipe body 1. At the same time, the threaded ring 35 and the threaded sleeve 23 are threadedly connected, so that the inner pipe 2 and the connecting pipe 3 are connected, thereby connecting the pipe body 1, the inner pipe 2 and the connecting pipe 3 into a whole.

[0059] Two third sealing rings 36 are provided on the connecting pipe 3, and a third limiting groove 37 for placing the first sealing ring 33 is provided on the connecting pipe 3. The two third sealing rings 36 are respectively press-fitted with the pipe body 1 and the threaded sleeve 23. When the connecting component and the inner pipe 2 are installed, one third sealing ring 36 is located between the connecting pipe 3 and the pipe body 1, and the other third sealing ring 36 is located between the connecting pipe 3 and the threaded sleeve 23. The sealing performance between the connecting pipe 3 and the pipe body 1 is improved by one third sealing ring 36, and the sealing performance between the connecting pipe 3 and the inner pipe 2 is improved by the other third sealing ring 36, reducing the leakage of the medium, thereby improving the sealing performance between the inner pipe 2 and the second opening 12a.

[0060] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated connecting pipe, characterized in that: It includes a pipe body (1) and an inner pipe (2), wherein the inner pipe (2) is installed inside the pipe body (1) and is detachably and sealed to the pipe body (1), wherein the pipe body (1) has at least three openings, and the inner pipe (2) and the pipe body (1) form an independent water flow channel; The opening includes a first opening (11), a second opening (12a) and a third opening (12b), the second opening (12a) is connected to the inner tube (2), and the end of the inner tube (2) extends to the first opening (11); A connecting member is detachably connected to the second opening (12a) to fix the inner tube (2). At the same time, the inner tube (2) is connected to the second opening (12a) through the connecting member. The connecting member is sealed to the pipe body (1) and the inner tube (2). The connecting member is a connecting pipe (3). The connecting pipe (3) is threaded to the pipe body (1) and abuts against the outer wall of the inner tube (2). A fixing ring (22) is provided on the side wall of the inner tube (2), and the connecting tube (3) is inserted into and adapted to the fixing ring (22); A positioning structure for fixing the relative position is provided between the main pipe (1) and the inner pipe (2). The positioning structure includes a positioning boss (13) integrally formed with the main pipe (1). The bottom of the inner pipe (2) is provided with a positioning groove (21) that is compatible with the positioning boss (13). When installing the inner pipe (2), the positioning boss (13) is inserted into the positioning groove (21). After the filter is installed, the inner tube (2) is connected to the filter. The medium enters through the second opening (12a), passes through the inner tube (2) and enters the filter for filtration, and then exits through the third opening (12b).

2. The prefabricated connecting pipe according to claim 1, characterized in that: The opening further includes at least one fourth opening (16), which communicates with the second opening (12a) or the third opening (12b).

3. The prefabricated connecting pipe according to claim 1, characterized in that: The inner wall of the connecting pipe (3) is provided with several slots (32).

4. The prefabricated connecting pipe according to claim 1, characterized in that: The connecting pipe (3) is provided with a first sealing ring (33) that is interference-fitted with the pipe body (1), and the fixing ring (22) is provided with a second sealing ring (221) that is interference-fitted with the fixing ring (22).

5. A prefabricated connecting pipe according to claim 4, characterized in that: The connecting pipe (3) is provided with a first limiting groove (34) for placing the first sealing ring (33), and the fixing ring (22) is provided with a second limiting groove (222) for placing the second sealing ring (221).

6. A prefabricated connecting pipe according to claim 1, characterized in that: The end of the connecting pipe (3) is coaxially provided with a threaded ring (35), and the side wall of the inner pipe (2) is provided with a threaded sleeve (23). The threaded ring (35) and the threaded sleeve (23) are threadedly connected and adapted.

7. A prefabricated connecting pipe according to claim 6, characterized in that: The connecting pipe (3) is provided with two third sealing rings (36) that are respectively interference-fitted with the pipe body (1) and the threaded sleeve (23).

8. A prefabricated connecting pipe according to claim 7, characterized in that: The connecting pipe (3) is provided with a third limiting groove (37) for placing the third sealing ring (36).

9. A prefabricated connecting pipe according to claim 1, characterized in that: The inner tube (2) extends to the outside of the first opening (11), and the first opening (11) is provided with a mounting groove (15) for connecting the filter.

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