Three-way pipe fitting and water heater module

Abstract

The utility model provides a three-way pipe fitting and a water heater module, and relates to the technical field of connecting pieces. The three-way pipe fitting comprises a three-way pipe body and an annular connecting piece, the three-way pipe body is provided with three connecting pipe sections, at least one connecting pipe section serves as a target pipe section, and an annular stop table protruding out of the peripheral wall of the target pipe section is arranged at the connecting end of the target pipe section; the annular connecting piece comprises a connecting ring part and a sliding ring part, an inner thread is arranged on the ring inner wall of the connecting ring part, the sliding ring part is coaxially connected to the connecting ring part and arranged on the target pipe section in a sleeving mode, and the connecting ring part and the sliding ring part are configured in the mode that the sliding ring part can slide along the target pipe section, and when the sliding ring part is stopped on the annular stopping table, the sliding ring part can slide along the target pipe section. The connecting ring part extends out of the target pipe section in the axial direction. The annular connecting piece in the three-way pipe fitting can slide along the target pipe section, so that the storage amount and the transportation amount of the three-way pipe fitting in a certain space are large.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a three-way pipe fitting and a water heater module. Background Art

[0002] A tee pipe fitting has three connecting pipe sections, used to connect two conveying pipelines. In the prior art, to improve the convenience of connecting a tee pipe fitting with other components or pipelines, some tee pipe fittings are provided with threaded connectors at their connecting ends to achieve threaded connection with other components or pipelines. However, the provision of threaded connectors will result in the lengthening of the tee pipe fitting pipeline and the increase of its overall size, resulting in a larger storage and transportation space for the tee pipe fitting, and a smaller storage and transportation capacity within a given space. Utility Model Content

[0003] The purpose of the present invention includes providing a three-way pipe fitting and a water heater module to solve the technical problem that the overall size of the existing three-way pipe fitting is large, resulting in a large space occupied for storage and transportation of the three-way pipe fitting, and a small storage and transportation capacity in a certain space.

[0004] To solve the above problems, the present invention provides a three-way pipe fitting, comprising a three-way pipe body and an annular connector, wherein the three-way pipe body has three connecting pipe segments, at least one of which serves as a target pipe segment, and the connecting end of the target pipe segment is provided with an annular stop protruding from the outer peripheral wall thereof;

[0005] The annular connector includes a connecting ring portion and a sliding ring portion. The inner wall of the connecting ring portion is provided with an internal thread. The sliding ring portion is coaxially connected to the connecting ring portion and is sleeved on the target pipe segment. The connecting ring portion and the sliding ring portion are configured such that: the sliding ring portion can slide along the target pipe segment, and when the sliding ring portion stops at the annular stop platform, the connecting ring portion extends axially out of the target pipe segment.

[0006] In the three-way pipe fitting provided by the present invention, there is no need to use the three-way pipe fitting. When the three-way pipe fitting needs to be stored or transported, the annular connector can be slid toward the connection point of the three connecting pipe sections to its maximum sliding stroke, thereby shortening the overall axial length of the target pipe section and the annular connector sleeved thereon, correspondingly reducing the overall size of the three-way pipe fitting and its space occupancy, improving its structural compactness, and thereby increasing the storage and transportation capacity of the three-way pipe fitting in a certain space, thereby improving the convenience of storage and transportation of the three-way pipe fitting.

[0007] When a three-way pipe fitting is needed for pipeline connection, the annular connector can be slid away from the connection point of the three connecting pipe sections until the connecting ring portion extends axially out of the target pipe section, and then the connecting ring portion is screwed to the threaded joint to be connected until the sliding ring portion or its adjacent ring portion abuts against the side facing the annular stop platform, and at the same time, the threaded joint abuts against the annular stop platform or the end face facing the target pipe section, thereby completing the connection between the target pipe section and the threaded joint; wherein, during the relative rotation of the connecting ring portion and the threaded joint, the connecting ring portion can drive the sliding ring portion to rotate around the target pipe section, that is, the rotation of the connecting ring portion will not drive the target pipe section to rotate, and the target pipe section can realize the threaded connection between the connecting ring portion and the threaded joint without the need for circumferential twisting, thereby improving the connection convenience between the three-way pipe fitting and the threaded joint, reducing the need for twisting the target pipe section to complete the threaded connection, which makes its connection operation difficult and the target pipe section is easily damaged by twisting.

[0008] Optionally, the connecting ring portion and the sliding ring portion are connected via an intermediate ring portion, the intermediate ring portion is coaxial with the sliding ring portion, and the minimum ring inner diameters of the intermediate ring portion and the connecting ring portion are both greater than or equal to the outer diameter of the annular stop platform.

[0009] Optionally, the axial length of the intermediate ring portion connected between the sliding ring portion and the connecting ring portion is greater than or equal to the axial length of the annular stop platform.

[0010] Optionally, the axial length of the target pipe segment is greater than the axial length of the annular connector.

[0011] Optionally, the intermediate ring portion is a tapered cylinder, the contracted end of the intermediate ring portion is fixed to the outer peripheral wall of the sliding ring portion, and the expanded end is fixed to one end of the connecting ring portion facing the sliding ring portion.

[0012] Optionally, the three-way pipe fitting further includes a stop member, which includes a connecting tube and the annular boss provided on the outer peripheral wall of the connecting tube, the connecting tube is fitted and inserted into the target pipe segment, and the annular boss protrudes from the outer peripheral wall of the target pipe segment to form the annular stop member.

[0013] Optionally, the inner wall of the connecting tube is coplanar with the inner wall of the target pipe section.

[0014] Optionally, an elastic sealing ring is provided around the end surface of the annular stop platform facing away from the sliding ring portion.

[0015] Optionally, the connecting ring portion includes a nut.

[0016] The present utility model also provides a water heater module, including a first water supply pipeline and a second water supply pipeline, the first water supply pipeline is provided with a pump body and the above-mentioned three-way pipe fitting, the connecting pipe section of the three-way pipe fitting facing the pump body is used as a target pipe section, the connecting ring portion provided on the target pipe section is threadedly connected to the joint of the pump body, and the connecting pipe section of the three-way pipe body extending out of the first water supply pipeline is connected to the second water supply pipeline.

[0017] The water heater module provided by the present invention includes all the beneficial effects of the three-way pipe fitting. In addition, the three-way pipe fitting is connected between the first water supply pipeline and the second water supply pipeline, so that the first water supply pipeline and the second water supply pipeline can be connected to each other to supplement the water flow. The end of the three-way pipe fitting facing the pump body is threadedly connected to the threaded joint of the pump body through the connecting ring. The two are easy to assemble and disassemble, and no connecting pipe is required between the two, so that the extension length of the first water supply pipeline is shorter and the space occupied is smaller, which can improve the structural compactness of the first water supply pipeline and the water heater module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 This is a piping connection diagram of the water heater module provided by the present invention;

[0020] Figure 2 An axonometric drawing of the tee pipe fitting provided by the present invention in the first form;

[0021] Figure 3 for Figure 2 An axonometric cross-sectional view of a center tee pipe fitting, wherein the annular connector is slid to the end of the target pipe section facing away from the annular stop;

[0022] Figure 4 for Figure 2 An axonometric cross-sectional view of a middle tee pipe fitting, wherein the annular connector abuts against the annular stop;

[0023] Figure 5 A cross-sectional view of the second form of the three-way pipe fitting provided by the present invention;

[0024] Figure 6 This is an exploded view of the tee pipe fitting provided by the present invention when it is in the second form.

[0025] Description of reference numerals:

[0026] 10-first water supply pipeline; 20-second water supply pipeline; 30-pump body; 31-threaded joint; 100-tee pipe body; 110-connecting pipe section; 120-target pipe section; 121-annular groove; 130-annular stop platform; 200-annular connector; 210-connecting ring portion; 211-internal thread; 220-intermediate ring portion; 230-sliding ring portion; 300-stop member; 310-connecting cylinder; 320-annular boss. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] This embodiment provides a three-way pipe fitting, such as Figure 2-Figure 4 As shown, it includes a tee pipe body 100 and an annular connector 200. The tee pipe body 100 has three connecting pipe sections 110, and at least one connecting pipe section 110 serves as a target pipe section 120. The connecting end of the target pipe section 120 is provided with an annular stop platform 130 protruding from its outer peripheral wall; the annular connector 200 includes a connecting ring portion 210 and a sliding ring portion 230. The inner wall of the connecting ring portion 210 is provided with an internal thread 211. The sliding ring portion 230 is coaxially connected to the connecting ring portion 210 and is sleeved on the target pipe section 120. The connecting ring portion 210 and the sliding ring portion 230 are configured as follows: the sliding ring portion 230 can slide along the target pipe section 120, and when the sliding ring portion 230 stops at the annular stop platform 130, the connecting ring portion 210 extends axially out of the target pipe section 120.

[0029] In the tee pipe fitting provided in this embodiment, the tee pipe body 100 includes three connecting pipe sections 110, which are radially distributed and connected to each other at one end. One, two or three connecting pipe sections 110 serve as target pipe sections 120. The end of the target pipe section 120 away from the connection point is provided with an annular stop platform 130 extending along its circumference and protruding radially outward. The outer diameter of the annular stop platform 130 is larger than the outer diameter of the target pipe section 120. The annular connector 200 includes a connecting ring portion 210 and a sliding ring portion 230 along its axial direction. The sliding ring portion 230 is sleeved on the target pipe section 120 at the annular stop platform 130 and the other two connecting pipe sections. 110, the connecting ring portion 210 is located on the side of the sliding ring portion 230 away from the other two connecting pipe segments 110, the inner diameter of the sliding ring portion 230 is larger than the outer diameter of the target pipe segment 120 and smaller than the outer diameter of the annular stop platform 130, the sliding ring portion 230 can slide away from the annular stop platform 130 along the axial direction of the target pipe segment 120, and can slide toward the annular stop platform 130 along the axial direction of the target pipe segment 120 and stop at the annular stop platform 130 by itself or the adjacent ring portion, and when the sliding ring portion 230 stops at the annular stop platform 130, the connecting ring portion 210 extends out of the target pipe segment 120 in the circumferential direction to ensure its threaded connection with other pipe fittings.

[0030] There is no need to use tee fittings. When tee fittings need to be stored or transported, Figure 3 As shown, the annular connector 200 can be slid toward the connection point of the three connecting pipe sections 110 to its maximum sliding stroke, thereby shortening the overall axial length of the target pipe section 120 and the annular connector 200 sleeved thereon, correspondingly reducing the overall size of the three-way pipe fitting and its space occupancy, improving its structural compactness, and thereby increasing the storage and transportation capacity of the three-way pipe fittings in a certain space, thereby improving the convenience of storage and transportation of the three-way pipe fittings.

[0031] When a tee fitting is required for pipe connection, Figure 4As shown, the annular connector 200 can be slid away from the connection point of the three connecting pipe segments 110 until the connecting ring portion 210 extends axially out of the target pipe segment 120, and then the connecting ring portion 210 is screwed to the threaded joint 31 to be connected until the sliding ring portion 230 or its adjacent ring portion abuts against the side facing the annular stop platform 130, and at the same time, the threaded joint 31 abuts against the end face facing the annular stop platform 130 or the target pipe segment 120, completing the connection between the target pipe segment 120 and the threaded joint 31; wherein, the connecting ring portion 210 and the threaded joint 31 During the relative rotation, the connecting ring portion 210 can drive the sliding ring portion 230 to rotate around the target pipe segment 120, that is, the rotation of the connecting ring portion 210 will not drive the target pipe segment 120 to rotate. The target pipe segment 120 does not need to be twisted in the circumferential direction to achieve the threaded connection between the connecting ring portion 210 and the threaded joint 31, thereby improving the connection convenience between the tee pipe fitting and the threaded joint 31, reducing the need to twist the target pipe segment 120 to complete the threaded connection, resulting in difficulty in the connection operation and the target pipe segment 120 being easily damaged by twisting.

[0032] In this embodiment, Figure 3 and Figure 4 As shown, the connecting ring portion 210 and the sliding ring portion 230 are connected via the intermediate ring portion 220 , which is coaxial with the sliding ring portion 230 , and the minimum inner diameters of the intermediate ring portion 220 and the connecting ring portion 210 are both greater than or equal to the outer diameter of the annular stop platform 130 . The connecting ring portion 210, the intermediate ring portion 220 and the sliding ring portion 230 are coaxially connected in sequence, wherein the connecting ring portion 210 and the intermediate ring portion 220 can be straight-cylinder ring portions or tapered-cylinder ring portions or ring portions of other shapes, and the minimum ring inner diameter of the connecting ring portion 210 and the intermediate ring portion 220 is greater than or equal to the outer diameter of the annular stop platform 130, and the outer diameter of the sliding ring portion 230 is greater than the outer diameter of the annular stop platform 130; on the one hand, during the axial sliding of the sliding ring portion 230 along the target pipe section 120, the annular stop platform 130 will not interfere with the intermediate ring portion 220 and the connecting ring portion 210, and the sliding ring portion 230 can slide smoothly on the pipe section of the target pipe section 120 located between the annular stop platform 130 and the other connecting pipe sections 110, so that the sliding stroke of the sliding ring portion 230 along the axial sliding of the target pipe section 120 is the axial length of the target pipe section 120. Accordingly, when the tee pipe fitting needs to be stored or transported, such as Figure 3 As shown, the sliding ring portion 230 can slide along the target pipe segment 120 to the end thereof away from the annular stop platform 130, thereby further shortening the overall axial length of the target pipe segment 120 and the annular connector 200 sleeved thereon, and correspondingly further reducing the overall size of the tee pipe fitting and its space occupancy, increasing the storage and transportation capacity of the tee pipe fitting in a certain space, and improving the convenience of storage and transportation of the tee pipe fitting.

[0033] On the other hand, when the tee pipe fitting is used for pipeline connection, such as Figure 4 As shown, the connecting ring portion 210 is screwed to the threaded joint 31, and there is no interference between the intermediate ring portion 220 and the annular stop platform 130, so that the end surfaces of the sliding ring portion 230 and the annular stop platform 130 facing each other can fit together and abut to achieve the stopping of the sliding ring portion 230. The contact area between the sliding ring portion 230 and the annular stop platform 130 is large, and the stability of the abutment limit between the two is relatively high, which can ensure the connection stability and sealing between the connecting ring portion 210 and the threaded joint 31.

[0034] In this embodiment, the axial length of the intermediate ring portion 220 between the sliding ring portion 230 and the connecting ring portion 210 is greater than or equal to the axial length of the annular stop 130. When the tee pipe fitting needs to be connected to the threaded joint 31, when the sliding ring portion 230 abuts against the annular stop 130, the axial length of the intermediate ring portion 220 between the connecting ring portion 210 and the sliding ring portion 230 is greater than the axial length of the annular stop 130. This allows the connecting ring portion 210 to be completely axially located outside the annular stop 130. Accordingly, the entire axial area of ​​the connecting ring portion 210 can be threadedly connected to the threaded joint 31. Furthermore, while the axial length of the connecting ring portion 210 is constant, the effective threaded connection length of the connecting ring portion 210 is increased, thereby improving the stability and sealing performance of the connection between the connecting ring portion 210 and the threaded joint 31.

[0035] In this embodiment, Figure 2-Figure 4 As shown, the axial length of the target pipe segment 120 is greater than the axial length of the annular connector 200. When a tee pipe fitting is not required, when the sliding ring portion 230 slides along the target pipe segment 120 to its end facing away from the annular stop 130, the entire axial extension area of ​​the annular connector 200 is completely within the axial extension area of ​​the target pipe segment 120, i.e., the annular connector 200 does not protrude axially from the target pipe segment 120. The external dimensions of the tee pipe fitting are approximately the same as those of the tee pipe body 100. While increasing the connection length of the tee pipe fitting, the overall dimensions of the tee pipe fitting are further reduced, reducing the space occupied during storage or transportation, and increasing its storage and transportation capacity.

[0036] In this embodiment, Figure 2-Figure 4As shown, the intermediate ring portion 220 is a tapered cylinder, with the constricted end of the intermediate ring portion 220 fixedly connected to the outer circumferential wall of the sliding ring portion 230, and the flared end fixedly connected to the end of the connecting ring portion 210 facing the sliding ring portion 230. This is one of the specific forms in which the intermediate ring portion 220 is connected between the connecting ring portion 210 and the sliding ring portion 230. The intermediate ring portion 220 adopts a simple conical cylinder form, with its constricted end surrounding and fixedly connected to the outer circumferential wall of the sliding ring portion 230 to ensure that the minimum ring inner diameter of the intermediate ring portion 220 is not less than the outer diameter of the annular stop 130; the flared end of the intermediate ring portion 220 surrounding and fixedly connected to the end face of the connecting ring segment facing the sliding ring segment, resulting in a simple connection structure.

[0037] In this embodiment, Figure 5 and Figure 6 As shown, the three-way pipe fitting also includes a stop member 300, which includes a connecting tube 310 and an annular boss 320 provided on the outer peripheral wall of the connecting tube 310. The connecting tube 310 is inserted into the target pipe section 120, and the annular boss 320 abuts against the end face of the target pipe section 120 and protrudes from the outer peripheral wall of the target pipe section 120 to form an annular stop platform 130. During assembly, the stop member 300 is separated from the target pipe segment 120, and the target pipe segment 120 is in the shape of a straight pipe. The sliding ring portion 230 is sleeved on the target pipe segment 120, and then the connecting tube 310 of the stop member 300 is inserted into the target pipe segment 120. The annular boss 320 radially protrudes out of the annular part of the target pipe segment 120 as an annular stop platform 130; when the annular connector 200 needs to be repaired or replaced, the connection between the connecting tube 310 and the target pipe segment 120 can be removed, and then the sliding ring portion 230 can be slid out axially; it can be seen that the setting of the stop member 300 makes the disassembly and assembly operations of the annular connector 200 and the target pipe segment 120 more convenient.

[0038] Specifically, the connecting tube 310 and the target pipe section 120 may be threadedly connected to ensure a detachable connection between the connecting tube 310 and the target pipe section 120 and to improve the connection strength between the two.

[0039] Of course, in some other embodiments, such as Figure 2-Figure 4 As shown, the annular stop 130 may also be directly fixed to the outer peripheral wall of the target pipe section.

[0040] In this embodiment, Figure 5As shown, the inner wall of the connecting tube 310 is coplanar with the inner wall of the target pipe section 120. The inner wall of the target pipe section 120 is provided with an annular groove 121, which extends through the port of the target pipe section 120 and matches the connecting tube 310. During assembly, the connecting tube 310 is embedded in the annular groove 121, and the inner wall of the connecting tube 310 and the inner wall of the target pipe section 120 are coplanar, forming a highly flat annular inner wall. This ensures smooth and stable flow of fluid through the tee fitting, and reduces the possibility that the poor flatness of the inner wall of the tee fitting will cause the fluid to form vortices within the fluid, thereby affecting its water delivery effect.

[0041] In this embodiment, an elastic sealing ring is provided around the end face of the annular stop 130 facing away from the sliding ring portion 230. When the tee is connected to the threaded joint 31, the end face of the threaded joint 31 abuts against the elastic sealing ring under the action of the connecting ring portion 210 and the pulling force. The elastic sealing ring is sandwiched between the annular stop 130 and the threaded joint 31, thereby improving the sealing performance of the connection between the two.

[0042] Specifically, the elastic sealing ring can be glued or welded to the annular stop platform 130 .

[0043] Specifically, the connecting ring portion 210 may include a nut.

[0044] Specifically, the three-way pipe fitting may be a three-way connecting pipe or a three-way valve.

[0045] This embodiment also provides a water heater module, such as Figure 1 As shown, it includes a first water supply pipeline 10 and a second water supply pipeline 20. The first water supply pipeline 10 is provided with a pump body 30 and the above-mentioned tee pipe fitting. The connecting pipe section 110 of the tee pipe fitting facing the pump body 30 serves as the target pipe section 120. The connecting ring portion 210 provided on the target pipe section 120 is threadedly connected to the threaded joint 31 of the pump body 30. The tee pipe body 100 extends out of the connecting pipe section 110 of the first water supply pipeline 10 and is connected to the second water supply pipeline 20.

[0046] Among them, the three-way pipe fitting is used in the water heater module, and the water heater module includes all the beneficial effects of the three-way pipe fitting. In addition, the three-way pipe fitting is connected between the first water supply pipeline 10 and the second water supply pipeline 20, so that the first water supply pipeline 10 and the second water supply pipeline 20 can be connected to each other to supplement the water flow. The end of the three-way pipe fitting facing the pump body 30 is threadedly connected to the threaded joint 31 of the pump body 30 through the connecting ring 210. The two are easy to assemble and disassemble, and there is no need to connect the pipeline between the two, so that the extension length of the first water supply pipeline 10 is shorter and the space occupied is smaller, which can improve the structural compactness of the first water supply pipeline 10 and the water heater module.

[0047] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0048] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-way pipe fitting, characterized in that: The invention comprises a three-way pipe body (100) and an annular connecting piece (200), wherein the three-way pipe body (100) has three connecting pipe sections (110), at least one of the connecting pipe sections (110) serves as a target pipe section (120), and a connecting end portion of the target pipe section (120) is provided with an annular stop platform (130) protruding from the outer peripheral wall thereof; The annular connector (200) comprises a connecting ring portion (210) and a sliding ring portion (230); the inner ring wall of the connecting ring portion (210) is provided with an internal thread (211); the sliding ring portion (230) is coaxially connected to the connecting ring portion (210) and sleeved on the target pipe segment (120); the connecting ring portion (210) and the sliding ring portion (230) are configured such that the sliding ring portion (230) can slide along the target pipe segment (120); and when the sliding ring portion (230) stops at the annular stop platform (130), the connecting ring portion (210) extends axially out of the target pipe segment (120).

2. The three-way pipe fitting according to claim 1, characterized in that: The connecting ring portion (210) and the sliding ring portion (230) are connected via an intermediate ring portion (220), the intermediate ring portion (220) and the sliding ring portion (230) are coaxial, and the minimum ring inner diameters of the intermediate ring portion (220) and the connecting ring portion (210) are both greater than or equal to the outer diameter of the annular stop platform (130).

3. The three-way pipe fitting according to claim 2, characterized in that: The axial length of the intermediate ring portion (220) connected between the sliding ring portion (230) and the connecting ring portion (210) is greater than or equal to the axial length of the annular stop platform (130).

4. The three-way pipe fitting according to claim 2, characterized in that: The axial length of the target pipe section (120) is greater than the axial length of the annular connecting piece (200).

5. The three-way pipe fitting according to claim 2, characterized in that: The intermediate ring portion (220) is a conical cylinder, the contracted end of the intermediate ring portion (220) is fixed to the outer peripheral wall of the sliding ring portion (230), and the expanded end of the intermediate ring portion (220) is fixed to one end of the connecting ring portion (210) facing the sliding ring portion (230).

6. The three-way pipe fitting according to any one of claims 1 to 5, characterized in that: The three-way pipe fitting further comprises a stopper (300), the stopper (300) comprising a connecting tube (310) and an annular boss (320) provided on the outer peripheral wall of the connecting tube (310), the connecting tube (310) being inserted into the target pipe section (120), and the annular boss (320) protruding from the outer peripheral wall of the target pipe section (120) to form the annular stopper (130).

7. The three-way pipe fitting according to claim 6, characterized in that: The inner wall of the connecting tube (310) is coplanar with the inner wall of the target pipe section (120).

8. The three-way pipe fitting according to any one of claims 1 to 5, characterized in that: An elastic sealing ring is provided around the end surface of the annular stop platform (130) facing away from the sliding ring portion (230).

9. The three-way pipe fitting according to any one of claims 1 to 5, characterized in that: The connecting ring portion (210) includes a nut.

10. A water heater module, characterized in that: The invention comprises a first water supply pipeline (10) and a second water supply pipeline (20), wherein the first water supply pipeline (10) is provided with a pump body (30) and a three-way pipe fitting according to any one of claims 1 to 9, wherein the connecting pipe section (110) of the three-way pipe fitting facing the pump body (30) serves as a target pipe section (120), and a connecting ring portion (210) provided on the target pipe section (120) is threadedly connected to a threaded joint (31) of the pump body (30), and the three-way pipe body (100) extends out of the connecting pipe section (110) of the first water supply pipeline (10) and is connected to the second water supply pipeline (20).

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