Connector for radiator water tank and working method thereof

Abstract

The present invention belongs to the technical field of engineering components, and particularly relates to a connector for a radiator water tank and a working method thereof. One type of connector for a radiator water tank comprises: a female connector, which is arranged on the side wall of the water tank; a male connector, which matches the female connector and is arranged at the end of the water outlet pipe of the generator set; an adjustable sealing assembly, comprising an inner sealing tube slidably arranged in the female connector and an outer adjusting tube sleeved outside the female connector; wherein, after the male connector is inserted into the female connector, the water flow pushes the inner sealing tube toward the water tank, and the end of the inner sealing tube abuts and seals against the reducing cone surface in the female connector; when the inner sealing tube moves axially, it tightens the water outlet pipe to reduce the impact of the water flow on the female connector; by adjusting the seal assembly in cooperation with the male connector and the female connector, the impact force of the water flow on the female connector is reduced, and the sealing of the male connector and the female connector is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering components, and specifically relates to a pipe joint, and in particular to a joint for a radiator water tank and a working method thereof. Background Art

[0002] The cooling water tank, also known as the radiator, is the main component in the generator cooling system. Its function is to dissipate heat. The cooling water absorbs heat in the water jacket, flows to the radiator to dissipate the heat, and then returns to the water jacket and circulates continuously, thereby achieving the effect of heat dissipation and temperature regulation.

[0003] The water tank is equipped with a water inlet joint, which is used to connect the water tank to the water pipe. The water pipe here is usually a hose. When the water flows through the pipe to the water tank, the fluctuation of its flow rate or pressure will cause the impact force on the joint to fluctuate, thereby affecting the sealing of the joint and reducing its sealing performance.

[0004] Therefore, how to avoid the reduction of joint sealing is a technical problem that needs to be solved urgently in this field.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of related technology. Summary of the Invention

[0006] The embodiments of the present disclosure at least provide a connector for a heat dissipation water tank and a working method thereof.

[0007] In a first aspect, an embodiment of the present disclosure provides a connector for a heat dissipation water tank, comprising:

[0008] A female connector is provided on the side wall of the water tank;

[0009] A male connector, which matches the female connector and is provided at the end of the water outlet pipe of the generator set;

[0010] Adjustable seal assembly, comprising:

[0011] An inner sealing tube, which is axially slidably assembled in the inner cavity of the female connector;

[0012] An external adjustment tube is coaxially sleeved on the outer wall of the female connector;

[0013] After the male connector is inserted into the female connector, the water flow pushes the conical ring at the end of the inner sealing tube toward the water tank, and the conical ring contacts and seals with the reducing cone surface in the female connector.

[0014] When the inner sealing tube moves axially, the outlet pipe is tightened to reduce the impact of water flow on the female joint.

[0015] In an optional embodiment, the outer wall of the female connector is uniformly distributed with a plurality of through holes along the circumference, and a limiting ball is provided in each through hole;

[0016] The outer wall of the inner sealing tube is provided with an annular groove, and the limiting ball is partially embedded in the annular groove to limit the axial displacement of the inner sealing tube;

[0017] Among them, after the male connector is inserted into the female connector, the outer regulating tube moves toward the water pipe to the limit position, and the limit ball moves into the outer regulating tube and releases the lock on the inner sealing tube.

[0018] In an optional embodiment, a sealing sleeve is provided on the outer wall of the male connector, and an annular gap is formed between the inner wall of the sealing sleeve and the outer wall of the male connector;

[0019] When the male connector is spirally inserted into the inner sealing tube, the sealing sleeve is inserted between the outer adjusting tube and the female connector to seal the male connector and the female connector.

[0020] In an optional embodiment, the conical ring is suitable for abutting against the reducing conical surface;

[0021] The tapered angle of the variable diameter conical surface is 30-50°, and the matching tapered angle deviation between the conical ring and the variable diameter conical surface is ≤±1°.

[0022] In an optional embodiment, the inner wall of the outer regulating tube is provided with an annular receiving groove, the depth of which is greater than the radius of the limiting ball and less than the diameter;

[0023] When the outer regulating tube moves toward the water tank to the limit position, the limiting ball falls into the receiving groove and releases the lock on the inner sealing tube.

[0024] In an optional embodiment, a return spring is provided in the female connector, one end of the return spring abuts against the end of the inner sealing tube, and the other end abuts against the bottom of the reducing cone surface;

[0025] When the water flow pressure decreases, the return spring pushes the inner sealing tube to move in the opposite direction to release the deformation of the water pipe.

[0026] In an optional embodiment, a positioning ring and a compression spring abutting against a side wall of the positioning ring are sleeved on the outer wall of the female connector;

[0027] The end of the compression spring abuts against the outer regulating tube, and the compression spring is suitable for pushing the outer regulating tube to move in a direction away from the water tank.

[0028] In an optional embodiment, the sealing sleeve is made of EPDM rubber with a Shore hardness of 60A-70A and a compression permanent deformation rate of ≤15%.

[0029] In an optional embodiment, the inner diameter of the outer regulating pipe gradually decreases from one end close to the water outlet pipe to the other end;

[0030] Among them, after the sealing sleeve is inserted into the inner wall of the outer regulating tube, the water flow pushes the inner sealing tube to move toward the water tank, and the outer regulating tube squeezes and holds the sealing sleeve tightly.

[0031] In an optional embodiment, a spiral guide groove is provided on the inner wall of the inner sealing tube, the spiral angle of the guide groove is 20-35°, and the groove depth is 0.5-1.2 mm.

[0032] In a second aspect, the present disclosure also provides a method for operating a joint for a radiator water tank, the method comprising:

[0033] The male connector is spirally inserted into the inner sealing tube so that the sealing sleeve on the outer wall of the male connector is inserted into the gap between the outer adjusting tube and the female connector;

[0034] After the male connector is inserted into the female connector, the outer regulating tube is pushed toward the water tank so that the limiting ball in the female connector falls into the receiving groove of the outer regulating tube, releasing the axial lock on the inner sealing tube;

[0035] Water flows through the outlet pipe into the male connector, pushing the inner sealing tube toward the water tank until the conical ring of the inner sealing tube contacts and seals with the reducing cone surface of the female connector.

[0036] The inner sealing tube is under continuous pressure, and the water outlet pipe is tightened by the cooperation of the tapered ring and the reducing cone surface, thereby reducing the impact and fluctuation of the water flow.

[0037] The present invention provides a connector for a radiator water tank and its operating method. By adjusting the sliding design of the sealing assembly, water pressure drives the inner sealing tube toward the water tank, simultaneously tightening the outlet pipe and causing it to deform axially, creating a pressure-deformation self-feedback mechanism. This structure can compensate for the expansion and contraction of the hose due to pressure fluctuations in real time, preventing leakage caused by separation of the sealing surfaces. The combination of the tapered ring and the tapered reducing surface achieves enhanced positive pressure sealing, further improving the sealing performance of both the male and female connectors.

[0038] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A perspective view of a connector for a heat dissipation water tank provided in an embodiment of the present disclosure;

[0042] Figure 2 A front view of a male connector inserted into a female connector according to an embodiment of the present disclosure;

[0043] Figure 3 A three-dimensional cross-sectional view of a female connector and an adjustable seal assembly provided in an embodiment of the present disclosure;

[0044] Figure 4 A sectional front view of a male connector and a female connector provided in an embodiment of the present disclosure;

[0045] Figure 5 Schematic diagram of the male connector and the female connector in the plugged-in fixed state according to an embodiment of the present disclosure.

[0046] In the picture:

[0047] 1. Female connector; 10. Through hole; 11. Stop ball; 12. Reducer cone; 13. Return spring; 14. Positioning ring; 15. Compression spring;

[0048] 2. Male connector; 21. Sealing sleeve; 22. Annular gap;

[0049] 3. Adjusting seal assembly; 31. Inner sealing tube; 310. Annular groove; 311. Conical ring; 312. Guide groove;

[0050] 32. External adjustment tube; 321. Accommodation tank;

[0051] 4. Water tank;

[0052] 5. Generator set; 50. Water outlet pipe. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0055] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0056] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0057] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0058] Research has revealed that in related technologies, water tanks are equipped with water inlet connectors for connecting them to water pipes, which are often hoses. (Hose connectors are used because they are convenient for connecting different pipes in a confined space, while bellows are not used because the inner wall of bellows is not smooth enough, resulting in high flow resistance.) As water flows from the pipes to the water tank, fluctuations in its flow rate or pressure cause fluctuations in the impact force on the connector. Traditional sealing rings are unable to reduce the impact force caused by flow rate or pressure fluctuations. In other words, if a traditional sealing ring is used here, the sealing ring will move synchronously with the hose, affecting the sealing of the connector and reducing its sealing performance.

[0059] Therefore, how to avoid the reduction of joint sealing is a technical problem that needs to be solved urgently in this field.

[0060] The defects in the above solutions and the causes of their occurrence are the results obtained by the inventors after practice and careful research. Therefore, the process of discovering the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0061] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0062] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0063] like Figures 1 to 5As shown, at least one embodiment provides a connector for a radiator water tank, comprising: a female connector 1, mounted on the sidewall of the water tank 4; the female connector 1 is fixed to the sidewall of the water tank 4 and is used to transport liquid into the water tank 4; the female connector 1 is provided with a tapered reducing surface 12. A male connector 2, which mates with the female connector 1 and is mounted at the end of a water outlet pipe 50 of the generator set 5; the water outlet pipe 50 is a flexible hose. When the inner sealing tube 31 moves toward the water tank 4, the male connector 2 applies axial tension to the water outlet pipe 50, causing the water outlet pipe 50 to elastically deform to offset the impact of the water flow. The adjustable seal assembly 3 comprises an inner sealing tube 31, which slides axially within the inner cavity of the female connector 1; and an outer adjusting tube 32, which coaxially sleeves onto the outer wall of the female connector 1. When the male connector 2 is inserted into the female connector 1, water flow pushes the tapered ring 311 at the end of the inner sealing tube 31 toward the water tank 4, where it abuts and seals against the tapered tapered surface 12 within the female connector 1. This axial movement of the inner sealing tube 31 tightens the outlet pipe 50, reducing the impact of water flow on the female connector 1. Due to the sliding design of the adjustable seal assembly 3, water pressure drives the inner sealing tube 31 toward the water tank 4, simultaneously tightening and deforming the outlet pipe 50 axially, creating a pressure-deformation self-feedback mechanism. The axial movement of the inner sealing tube 31, driven by water flow, pulls the male connector 2 and the outlet pipe 50 synchronously toward the water tank 4, tightening and straightening the outlet pipe 50. This structure effectively compensates for the expansion and contraction of the hose caused by pressure fluctuations, preventing leakage caused by separation of the sealing surfaces. The cooperation between the tapered ring 311 and the tapered tapered surface 12 realizes the enhancement of positive pressure sealing, thereby further improving the sealing performance of the male connector 2 and the female connector 1.

[0064] Reference Attachment Figure 3 The outer wall of the female connector 1 is evenly distributed with a number of through holes 10 along the circumference, and a limiting ball 11 is provided in each through hole 10; the inner diameter of the through hole 10 is slightly larger than the diameter of the limiting ball 11. In order to prevent the liquid from overflowing from the through hole 10, the outer wall of the inner sealing tube 31 is slidably sealed with the inner wall of the female connector 1. Preferably, at least two sealing rings (not shown in the figure) are provided on the inner wall of the female connector 1. The two sealing rings are respectively provided on both sides of the through hole 10 to prevent the liquid in the female connector 1 from overflowing outward through the through hole 10. The outer wall of the inner sealing tube 31 is provided with an annular groove 310, and the limiting ball 11 is partially embedded in the annular groove 310 to limit the axial displacement of the inner sealing tube 31. When the male connector 2 is not inserted into the female connector 1, each limiting ball 11 is partially embedded in the annular groove 310 to prevent the inner sealing tube 31 from moving axially; and when the male connector 2 is connected and fixed to the female connector 1, each limiting ball 11 is suitable for sliding into the accommodating groove 321 to allow the inner sealing tube 31 to move axially relative to the female connector 1.

[0065] Reference Attachment Figure 4The outer wall of the male connector 2 is covered with a sealing sleeve 21, forming an annular gap 22 between the inner wall of the sealing sleeve 21 and the outer wall of the male connector 2. The sealing sleeve 21 is made of EPDM rubber with a Shore hardness of 60A-70A and a compression set of ≤15%. When the male connector 2 is spirally inserted into the inner sealing tube 31, the sealing sleeve 21 is inserted between the outer adjustment tube 32 and the female connector 1 to seal the male connector 2 and the female connector 1.

[0066] Reference Attachment Figure 3 A conical ring 311 is provided at the end of the inner sealing tube 31, and the conical ring 311 is suitable for abutting against the variable diameter cone surface 12; the cone angle of the variable diameter cone surface 12 is 30-50°, preferably, the cone angle of the conical ring 311 is 45°, and the angle deviation between it and the variable diameter cone surface 12 is ≤±0.5°; and the matching cone angle deviation between the conical ring 311 and the variable diameter cone surface 12 is ≤±1°.

[0067] Continue to refer to the attached Figure 4 The outer regulating tube 32 has an annular receiving groove 321 defined in its inner wall. The depth of the receiving groove 321 is greater than the radius and less than the diameter of the retaining ball 11. When the outer regulating tube 32 moves toward the water tank 4 to its limit position, the retaining ball 11 falls into the receiving groove 321 and releases the lock on the inner sealing tube 31. A return spring 13 is provided within the female connector 1. One end of the return spring 13 abuts the end of the inner sealing tube 31, and the other end abuts the bottom of the tapered surface 12. When the water pressure decreases, the return spring 13 pushes the inner sealing tube 31 in the opposite direction, releasing the deformation of the outlet pipe 50.

[0068] Reference Attachment Figure 3 The outer wall of the female connector 1 is secured with a positioning ring 14 and a compression spring 15 abutting the sidewall of the positioning ring 14. The end of the compression spring 15 abuts the outer regulating tube 32, and the compression spring 15 is adapted to push the outer regulating tube 32 away from the water tank 4. The inner diameter of the outer regulating tube 32 gradually decreases from the end closest to the water outlet pipe 50 toward the other end. After the sealing sleeve 21 is inserted into the inner wall of the outer regulating tube 32, the water flow pushes the inner sealing tube 31 toward the water tank 4, and the outer regulating tube 32 squeezes and holds the sealing sleeve 21.

[0069] Reference Attachment Figure 4 The inner wall of the inner sealing tube 31 is provided with a spiral guide groove 312. The guide groove 312 has a spiral angle of 20-35° and a groove depth of 0.5-1.2 mm. Preferably, the guide groove 312 has a spiral angle of 25° and a groove depth of 0.8 mm. The guide groove 312 guides the water flow to form a vortex, resulting in a circumferential component of velocity and reducing axial impact force.

[0070] The specific working principle is as follows:

[0071] Screw the male connector 2 into the female connector 1, insert the sealing sleeve 21 into the gap between the outer adjustment sleeve and the female connector 1, and simultaneously push the outer adjustment tube 32 toward the water tank 4 until the limiting ball 11 disengages from the annular groove 310 and falls into the receiving groove 321, thereby releasing the lock of the inner sealing tube 31;

[0072] Water flows through the outlet pipe 50 into the male connector 2. The water pressure pushes the inner sealing tube 31 to slide toward the water tank 4. At the same time, the guide groove 312 guides the water flow to form a vortex, which generates a circumferential component of velocity, reduces the axial impact force, and reduces the impact fluctuation on the female connector 1.

[0073] like Figure 5 As shown, when the water pressure suddenly increases, the inner sealing tube 31 further compresses the return spring 13 until the conical ring 311 is tightly fitted with the reducing cone 12; the inner sealing tube 31 is suitable for driving the male connector 2 to move axially synchronously, thereby tightening the water outlet pipe 50 to prevent axial deformation of the water outlet pipe 50; Figure 5 The F in the formula represents the direction of water flow.

[0074] When the water flow pressure decreases, the return spring 13 pushes the inner sealing tube 31 to return to its original position, releasing the deformation of the water outlet pipe 50 .

[0075] At least one embodiment provides a working method for a joint for a radiator water tank, the working method comprising:

[0076] The male connector 2 is spirally inserted into the inner sealing tube 31 so that the sealing sleeve 21 on the outer wall of the male connector 2 is inserted into the gap between the outer adjustment tube 32 and the female connector 1;

[0077] After the male connector 2 is inserted into the female connector 1, the outer regulating tube 32 is pushed toward the water tank 4 so that the limiting ball 11 in the female connector 1 falls into the receiving groove 321 of the outer regulating tube 32, thereby releasing the axial lock on the inner sealing tube 31;

[0078] Water flows through the outlet pipe 50 and enters the male connector 2, pushing the inner sealing tube 31 toward the water tank 4 until the conical ring 311 of the inner sealing tube 31 abuts and seals against the tapered surface 12 of the female connector 1.

[0079] The inner sealing tube 31 is continuously pressurized, and the water outlet pipe 50 is tightened by the cooperation between the conical ring 311 and the tapered conical surface 12, thereby reducing the impact and fluctuation of the water flow.

[0080] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0081] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0082] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A connector for a radiator water tank, characterized in that: include: A female connector (1) is provided on a side wall of the water tank (4); A male connector (2) that matches the female connector (1) and is disposed at the end of the water outlet pipe (50) of the generator set (5); Adjustable seal assembly (3), comprising: An inner sealing tube (31) is axially slidably assembled in the inner cavity of the female connector (1); An outer regulating tube (32) is coaxially sleeved on the outer wall of the female connector (1); After the male connector (2) is inserted into the female connector (1), the water flow pushes the conical ring (311) at the end of the inner sealing tube (31) to move toward the water tank (4), and the conical ring (311) abuts against the reducing conical surface (12) in the female connector (1) to form a seal; When the inner sealing tube (31) moves axially, the outlet pipe (50) is tightened to reduce the impact of water flow on the female connector (1); The outer wall of the female connector (1) is provided with a plurality of through holes (10) uniformly distributed along the circumferential direction, and a limiting ball (11) is provided in each through hole (10); An annular groove (310) is provided on the outer wall of the inner sealing tube (31), and the limiting ball (11) is partially embedded in the annular groove (310) to limit the axial displacement of the inner sealing tube (31); After the male connector (2) is inserted into the female connector (1), the outer regulating tube (32) moves toward the water tank (4) to the limit position, and the limiting ball (11) moves into the outer regulating tube (32) and releases the lock on the inner sealing tube (31); The outer wall of the male connector (2) is provided with a sealing sleeve (21), and an annular gap (22) is formed between the inner wall of the sealing sleeve (21) and the outer wall of the male connector (2); When the male connector (2) is spirally inserted into the inner sealing tube (31), the sealing sleeve (21) is inserted between the outer regulating tube (32) and the female connector (1) to seal the male connector (2) and the female connector (1); The inner wall of the outer regulating tube (32) is provided with an annular receiving groove (321), and the depth of the receiving groove (321) is greater than the radius of the limiting ball (11) and less than the diameter; When the outer regulating tube (32) moves toward the water tank (4) to the limit position, the limiting ball (11) falls into the receiving groove (321) and releases the lock on the inner sealing tube (31); A return spring (13) is provided in the female connector (1), one end of the return spring (13) abuts against the end of the inner sealing tube (31), and the other end abuts against the bottom of the reducing cone (12); When the water flow pressure decreases, the return spring (13) pushes the inner sealing tube (31) to move in the reverse direction to release the deformation of the water outlet pipe (50).

2. The radiator water tank joint according to claim 1, wherein: The conical ring (311) is suitable for abutting against the variable diameter conical surface (12); The tapered angle of the variable diameter conical surface (12) is 30-50°, and the matching tapered angle deviation between the conical ring (311) and the variable diameter conical surface (12) is ≤±1°.

3. The radiator water tank joint according to claim 1, wherein: The outer wall of the female connector (1) is sleeved with a positioning ring (14) and a compression spring (15) abutting against the side wall of the positioning ring (14); The end of the compression spring (15) abuts against the outer regulating tube (32), and the compression spring (15) is suitable for pushing the outer regulating tube (32) to move in a direction away from the water tank (4).

4. The radiator water tank joint according to claim 1, wherein: The sealing sleeve (21) is made of EPDM rubber, with a Shore hardness of 60A-70A and a compression permanent deformation rate of ≤15%.

5. The radiator water tank joint according to claim 4, characterized in that: The inner diameter of the outer regulating pipe (32) gradually decreases from one end close to the water outlet pipe (50) to the other end; After the sealing sleeve (21) is inserted into the inner wall of the outer regulating tube (32), the water flow pushes the inner sealing tube (31) toward the water tank (4), and the outer regulating tube (32) squeezes and holds the sealing sleeve (21).

6. The radiator water tank joint according to claim 1, wherein: The inner wall of the inner sealing tube (31) is provided with a spiral guide groove (312), the spiral angle of the guide groove (312) is 20-35 degrees, and the groove depth is 0.5-1.2 mm.

7. A working method for a radiator water tank joint, characterized in that: Using the radiator water tank joint according to any one of claims 1 to 6, the working method includes: The male connector (2) is spirally inserted into the inner sealing tube (31), so that the sealing sleeve (21) on the outer wall of the male connector (2) is inserted into the gap between the outer regulating tube (32) and the female connector (1); After the male connector (2) is inserted into the female connector (1), the outer regulating tube (32) is pushed to move toward the water tank (4), so that the limiting ball (11) in the female connector (1) falls into the receiving groove (321) of the outer regulating tube (32), thereby releasing the axial locking of the inner sealing tube (31); Water flows through the outlet pipe (50) and enters the male connector (2), pushing the inner sealing tube (31) to move toward the water tank (4) until the conical ring (311) of the inner sealing tube (31) abuts and seals against the tapered surface (12) of the female connector (1); The inner sealing tube (31) is continuously pressurized, and the water outlet pipe (50) is tightened by the cooperation between the conical ring (311) and the variable diameter conical surface (12), thereby reducing the impact and fluctuation of the water flow.

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