Connector for heat dissipation water tank and working method of connector

Abstract

The invention belongs to the technical field of engineering elements, and particularly relates to a connector for a heat dissipation water tank and a working method thereof. The connector for the heat dissipation water tank comprises a female connector arranged on the side wall of the water tank; the male joint is matched with the female joint and is arranged at the end part of a water outlet pipe of the generator set; the adjusting and sealing assembly comprises an inner sealing pipe arranged in the female connector in a sliding mode and an outer adjusting pipe arranged outside the female connector in a sleeving mode. After the male connector is inserted into the female connector, water flow pushes the inner sealing pipe to move towards the water tank, and the end of the inner sealing pipe abuts against the reducing conical surface in the female connector in a sealed mode. When the inner sealing pipe axially moves, the water outlet pipe is tightened to reduce water flow impact on the female joint; by adjusting the matching of the sealing assembly, the male joint and the female joint, the impact force of water flow on the female joint is reduced, and the sealing performance of the male joint and the female joint is improved.

Description

Technical Field

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

[0002] A radiator water tank, also known as a radiator, is a main component in the cooling system of a generator. 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 to circulate continuously, thereby achieving the effect of heat dissipation and temperature regulation.

[0003] An inlet joint is provided on the water tank for connecting the water tank and a water pipe. Here, the water pipe is mostly a flexible pipe. When the water flow flows in the water pipe towards the water tank, the fluctuation of its flow velocity or pressure will cause the impact force on the joint to fluctuate, thereby affecting the sealing performance of the joint and resulting in a decrease in its sealing performance.

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

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

[0006] The embodiments of the present disclosure at least provide a joint for a radiator water tank and its working method.

[0007] In a first aspect, the embodiments of the present disclosure provide a joint for a radiator water tank, including: A female joint, which is arranged on the side wall of the water tank; A male joint, which is matched with the female joint and is arranged at the end of the outlet pipe of the generator set; An adjusting and sealing assembly, including: An inner sealing tube, which is axially slidably assembled in the inner cavity of the female joint; An outer adjusting tube, which is coaxially sleeved on the outer wall of the female joint; Wherein, after the male joint is inserted into the female joint, the water flow pushes the conical ring at the end of the inner sealing tube to move towards the water tank, and the conical ring abuts against and seals with the stepped conical surface in the female joint; When the inner sealing tube axially moves, the outlet pipe is tightened to reduce the water flow impact on the female joint.

[0008] In an optional embodiment, a plurality of through holes are evenly distributed along the circumferential direction on the outer wall of the female joint, and a limiting ball is arranged in each through hole; An annular groove is arranged on the outer wall of the inner sealing tube, and the limiting ball is partially embedded in the annular groove to limit the axial displacement of the inner sealing tube; Among them, after the male connector is inserted into the female connector, the outer adjusting pipe moves towards the water pipe to the limit position, and the limit ball moves into the outer adjusting pipe and releases the locking of the inner sealing pipe.

[0009] In an optional embodiment, a sealing sleeve is sleeved 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; Among them, when the male connector is spirally inserted into the inner sealing pipe, the sealing sleeve is inserted between the outer adjusting pipe and the female connector to seal the male connector and the female connector.

[0010] In an optional embodiment, the conical ring is adapted to abut against the variable diameter conical surface; The cone angle of the variable diameter conical surface is 30 - 50°, and the angular deviation between the matching conical surface of the conical ring and the variable diameter conical surface is ≤ ±1°.

[0011] In an optional embodiment, a receiving groove is annularly formed on the inner wall of the outer adjusting pipe, and the depth of the receiving groove is greater than the radius of the limit ball and less than the diameter; Among them, when the outer adjusting pipe moves towards the water tank to the limit position, the limit ball falls into the receiving groove and releases the locking of the inner sealing pipe.

[0012] In an optional embodiment, a return spring is provided inside the female connector, one end of the return spring abuts against the end of the inner sealing pipe, and the other end abuts against the bottom of the variable diameter conical surface; Among them, when the water flow pressure decreases, the return spring pushes the inner sealing pipe to move in the reverse direction to release the deformation of the water outlet pipe.

[0013] In an optional embodiment, a positioning ring is sleeved on the outer wall of the female connector and a compression spring that abuts against the side wall of the positioning ring; The end of the compression spring abuts against the outer adjusting pipe, and the compression spring is adapted to push the outer adjusting pipe to move away from the water tank.

[0014] In an optional embodiment, the sealing sleeve is made of ethylene propylene diene monomer rubber, its Shore hardness is 60A - 70A, and the compression set rate ≤ 15%.

[0015] In an optional embodiment, the inner diameter of the outer adjusting pipe gradually decreases from the end close to the water outlet pipe to the other end; Among them, after the sealing sleeve is inserted into the inner wall of the outer adjusting pipe, the water flow pushes the inner sealing pipe to move towards the water tank, and the outer adjusting pipe squeezes and holds the sealing sleeve.

[0016] In an optional embodiment, spiral diversion grooves are provided on the inner wall of the inner sealing pipe, the spiral angle of the diversion grooves is 20 - 35°, and the groove depth is 0.5 - 1.2 mm.

[0017] In a second aspect, embodiments of the present disclosure further provide a working method for a joint of a radiating water tank. The working method includes: The male joint is spirally inserted into the inner sealing tube, so that the sealing sleeve on the outer wall of the male joint is inserted into the gap between the outer adjusting tube and the female joint; After the male joint is inserted into the female joint, the outer adjusting tube is pushed in the direction of the water tank, so that the limiting ball in the female joint falls into the receiving groove of the outer adjusting tube, releasing the axial locking of the inner sealing tube; Water flows through the outlet pipe and enters the male joint, pushing the inner sealing tube in the direction of the water tank until the tapered ring of the inner sealing tube abuts and seals against the variable diameter conical surface of the female joint; The inner sealing tube is continuously pressed, and the outlet pipe is tightened through the cooperation of the tapered ring and the variable diameter conical surface, reducing the impact fluctuation of the water flow.

[0018] The beneficial effect of the present invention is that the present invention provides a joint for a radiating water tank and its working method. Through the sliding design of the adjusting seal assembly, the water flow pressure drives the inner sealing tube to move in the direction of the water tank, synchronously tightening the axial deformation of the outlet pipe to form a pressure-deformation self-feedback mechanism. This structure can compensate in real time for the expansion and contraction of the hose caused by pressure fluctuations, avoiding leakage caused by the separation of the sealing surface. The cooperation between the tapered ring and the variable diameter conical surface realizes enhanced positive pressure sealing, further improving the sealing performance between the male joint and the female joint.

[0019] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0020] To make the above objectives, features, and advantages of the present invention more obvious and understandable, specific preferred embodiments are hereby cited and described in detail in conjunction with the accompanying drawings as follows. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 A three-dimensional view of the joint for a radiating water tank provided by the embodiments of the present disclosure; Figure 2 A front view of the male joint inserted into the female joint provided by the embodiments of the present disclosure; Figure 3 A three-dimensional cross-sectional view of the female joint and the adjusting seal assembly provided by the embodiments of the present disclosure; Figure 4 The sectional front view of the male connector and the female connector provided by the embodiment of the present disclosure; Figure 5 The schematic diagram of the plugged and fixed state of the male connector and the female connector provided by the embodiment of the present disclosure.

[0023] In the figure: 1. Female connector; 10. Through hole; 11. Limit ball; 12. Reducing conical surface; 13. Return spring; 14. Positioning ring; 15. Compression spring; 2. Male connector; 21. Sealing sleeve; 22. Annular gap; 3. Adjusting and sealing assembly; 31. Inner sealing tube; 310. Annular groove; 311. Conical ring; 312. Flow guiding groove; 32. Outer adjusting tube; 321. Accommodating groove; 4. Water tank; 5. Generator set; 50. Water outlet pipe. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] In this document, when it is mentioned that the first component is located on the second component, this may mean that the first component may be directly formed on the second component, or a third component may be inserted between the first component and the second component. In addition, in the drawings, for the effective description of the technical content, the thickness of the components may be exaggerated or reduced.

[0026] In this document, the exemplary 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..." modify the entire list of elements when following a 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.

[0027] The terms used herein are for the purpose of describing particular exemplary configurations only and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include the plural forms, unless clearly stated otherwise herein. The terms "comprising", "including" and "having" are inclusive and thus specify the presence of stated features, steps, operations, elements and / or components, but do not preclude 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 construed as necessarily requiring them to be performed in the particular order discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps may be employed.

[0028] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that a particular feature, structure or characteristic after such 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", etc. are used "as an example, instance or illustration. Any embodiment, aspect or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other embodiments, aspects or designs. Instead, the use of the terms "example", "exemplary", etc. is intended to present concepts in a concrete manner.

[0029] It has been found that in the related art, a water inlet joint is provided on the water tank for connecting the water tank and a water pipe. Here, the water pipe is mostly a flexible hose (the flexible hose is used as the connecting pipeline because it is convenient to operate when connecting different pipelines in a narrow space, and the corrugated pipe is not used because the inner wall of the corrugated pipe is not smooth enough, resulting in a large flow resistance of the water flow). When the water flow flows in the water pipe towards the water tank, the fluctuation of its flow rate or pressure will cause the impact force on the joint to fluctuate. The traditional sealing ring cannot reduce the impact force caused by the flow rate or pressure fluctuation. That is, when the traditional sealing ring is used here, the sealing ring will move synchronously with the flexible hose, thus affecting the sealing performance of the joint and resulting in a reduction in its sealing performance.

[0030] Therefore, how to avoid the reduction of the joint seal is a technical problem that urgently needs to be solved in the art.

[0031] Regarding the defects of the above solutions and the reasons for their occurrence, they are all the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure by the present disclosure should be the contributions made by the inventors to the present disclosure during the process of the present disclosure.

[0032] It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it will not be necessary to further define and explain it in subsequent figures.

[0033] The following will, with reference to the accompanying drawings, elaborate on some embodiments of the present invention. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0034] As Figures 1 to 5 shown, at least one embodiment provides a joint for a radiator water tank, including: a female joint 1, which is arranged on the side wall of the water tank 4; the female joint 1 is fixed on the side wall of the water tank 4 and is used for conveying liquid into the water tank 4; a reduced-diameter conical surface 12 is arranged inside the female joint 1. A male joint 2, which is matched with the female joint 1 and is arranged at the end of the water outlet pipe 50 of the generator set 5; the water outlet pipe 50 is a flexible pipe. When the inner sealing pipe 31 moves towards the water tank 4, an axial tension is applied to the water outlet pipe 50 through the male joint 2, causing the water outlet pipe 50 to undergo elastic deformation to offset the impact fluctuation of the water flow. An adjusting and sealing assembly 3, including: an inner sealing pipe 31, which is axially slidably assembled in the inner cavity of the female joint 1; an outer adjusting pipe 32, which is coaxially sleeved on the outer wall of the female joint 1; wherein, after the male joint 2 is inserted into the female joint 1, the water flow pushes the conical ring 311 at the end of the inner sealing pipe 31 to move towards the water tank 4, and the conical ring 311 abuts against and seals with the reduced-diameter conical surface 12 inside the female joint 1; when the inner sealing pipe 31 axially moves, the water outlet pipe 50 is tightened to reduce the impact of the water flow on the female joint 1. Through the sliding design of the adjusting and sealing assembly 3, the water flow pressure drives the inner sealing pipe 31 to move towards the water tank 4, synchronously tightening the axial deformation of the water outlet pipe 50 to form a pressure-deformation self-feedback mechanism. When the inner sealing pipe 31 is axially pushed by the water flow, it pulls the male joint 2 and the water outlet pipe 50 to move towards the water tank 4 synchronously to realize pulling and tightening the water outlet pipe 50. This structure can compensate in real time for the expansion and contraction amount of the flexible pipe caused by pressure fluctuations, and avoid leakage caused by the separation of the sealing surface. The cooperation between the conical ring 311 and the reduced-diameter conical surface 12 realizes enhanced positive pressure sealing. Further improves the sealing performance between the male joint 2 and the female joint 1.

[0035] Refer to the attached Figure 3, a number of through holes 10 are evenly distributed along the circumference on the outer wall of the female joint 1, and a limit ball 11 is arranged in each through hole 10; the inner diameter of the through hole 10 is slightly larger than the diameter of the limit ball 11. In order to prevent 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 joint 1. Preferably, at least two sealing rings (not shown in the figure) are arranged on the inner wall of the female joint 1, and the two sealing rings are respectively arranged on both sides of the through hole 10 to prevent the liquid in the female joint 1 from overflowing outward through the through hole 10. An annular groove 310 is arranged on the outer wall of the inner sealing tube 31, and a part of the limit ball 11 is embedded in the annular groove 310 to limit the axial displacement of the inner sealing tube 31. When the male joint 2 is not inserted into the female joint 1, each limit ball 11 is partially embedded in the annular groove 310 to prevent the axial movement of the inner sealing tube 31; when the male joint 2 is fixedly connected with the female joint 1, each limit ball 11 is adapted to slide into the receiving groove 321 so that the inner sealing tube 31 moves axially relative to the female joint 1.

[0036] Reference appendix Figure 4 , a sealing sleeve 21 is sleeved on the outer wall of the male joint 2, and an annular gap 22 is formed between the inner wall of the sealing sleeve 21 and the outer wall of the male joint 2; the sealing sleeve 21 is made of ethylene propylene diene monomer rubber, its Shore hardness is 60A - 70A, and the compression set rate ≤ 15%. Among them, when the male joint 2 is spirally inserted into the inner sealing tube 31, the sealing sleeve 21 is inserted between the outer adjusting tube 32 and the female joint 1 to seal the male joint 2 and the female joint 1.

[0037] Reference appendix Figure 3 , a tapered ring 311 is arranged at the end of the inner sealing tube 31, and the tapered ring 311 is adapted to abut against the tapered surface 12 with variable diameter; the taper angle of the tapered surface 12 with variable diameter is 30 - 50°, preferably, the taper angle of the tapered ring 311 is 45°, and the angle deviation from the tapered surface 12 with variable diameter ≤ ±0.5°; and the matching taper angle deviation between the tapered ring 311 and the tapered surface 12 with variable diameter ≤ ±1°.

[0038] Continue to refer to appendix Figure 4 , a receiving groove 321 is annularly arranged on the inner wall of the outer adjusting tube 32, and the depth of the receiving groove 321 is greater than the radius of the limit ball 11 and less than the diameter; among them, when the outer adjusting tube 32 moves to the limit position towards the water tank 4, the limit ball 11 falls into the receiving groove 321 and releases the locking of the inner sealing tube 31. A return spring 13 is arranged in the female joint 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 tapered surface 12 with variable diameter; among them, 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.

[0039] Reference appendix Figure 3, a positioning ring 14 is sleeved on the outer wall of the female joint 1 and a compression spring 15 abuts against the side wall of the positioning ring 14; the end of the compression spring 15 abuts against the outer adjusting tube 32, and the compression spring 15 is adapted to push the outer adjusting tube 32 to move away from the water tank 4. The inner diameter of the outer adjusting tube 32 gradually decreases from one end close to the water outlet pipe 50 to the other end; wherein, after the sealing sleeve 21 is inserted into the inner wall of the outer adjusting tube 32, the water flow pushes the inner sealing tube 31 to move towards the water tank 4, and the outer adjusting tube 32 squeezes and holds the sealing sleeve 21 tightly.

[0040] Reference appendix Figure 4 , a spiral flow guiding groove 312 is arranged on the inner wall of the inner sealing tube 31, the spiral angle of the flow guiding groove 312 is 20 - 35°, and the groove depth is 0.5 - 1.2 mm. Preferably, the spiral angle of the flow guiding groove 312 is 25°, and the groove depth is 0.8 mm. The flow guiding groove 312 guides the water flow to form a vortex, so that the water flow generates a circumferential component velocity and reduces the axial impact force.

[0041] The specific working principle is as follows: The male joint 2 is spirally inserted into the female joint 1, the sealing sleeve 21 is inserted into the gap between the outer adjusting sleeve and the female joint 1, and the male joint 2 synchronously pushes the outer adjusting tube 32 towards the water tank 4 until the limit ball 11 disengages from the annular groove 310 and falls into the receiving groove 321 to release the locking of the inner sealing tube 31; The water flow flows through the water outlet pipe 50 into the male joint 2, and the water flow pressure pushes the inner sealing tube 31 to slide towards the water tank 4 side; at the same time, the flow guiding groove 312 guides the water flow to form a vortex, so that the water flow generates a circumferential component velocity, reduces the axial impact force, and reduces the impact fluctuation on the female joint 1; As Figure 5 shown, when the water flow pressure suddenly increases, the inner sealing tube 31 further compresses the return spring 13 until the conical ring 311 is in close fit with the stepped conical surface 12; the inner sealing tube 31 is adapted to drive the male joint 2 to move axially synchronously to tighten the water outlet pipe 50 to prevent the axial deformation of the water outlet pipe 50; Figure 5 The F in

[0042] represents the water flow direction.

[0043] At least one embodiment provides a working method for a joint of a heat dissipation water tank, and the working method includes: The male joint 2 is spirally inserted into the inner sealing tube 31, so that the sealing sleeve 21 on the outer wall of the male joint 2 is inserted into the gap between the outer adjusting tube 32 and the female joint 1; After the male joint 2 is inserted into the female joint 1, it pushes the outer adjusting tube 32 to move towards the water tank 4, so that the limit ball 11 in the female joint 1 falls into the receiving groove 321 of the outer adjusting tube 32 to release the axial locking of the inner sealing tube 31; The water flows through the outlet pipe 50 and enters the male joint 2, pushing the inner sealing pipe 31 to move towards the water tank 4 until the conical ring 311 of the inner sealing pipe 31 abuts and seals against the stepped conical surface 12 of the female joint 1; The inner sealing pipe 31 is continuously pressed, and the outlet pipe 50 is tightened through the cooperation of the conical ring 311 and the stepped conical surface 12, reducing the impact fluctuation of the water flow.

[0044] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 thus cannot be understood as a limitation to the present invention. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless clearly indicated in the text. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.

[0046] Taking the above-mentioned ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A joint for a heat dissipation water tank, characterized in that, Comprising: A female connector (1), which is arranged on the side wall of the water tank (4); A male connector (2), which is matched with the female connector (1) and is arranged at the end of the water outlet pipe (50) of the generator set (5); An adjusting and sealing assembly (3), including: An inner sealing tube (31), which is axially slidably assembled in the inner cavity of the female connector (1); An outer adjusting tube (32), which is coaxially sleeved on the outer wall of the female connector (1); Wherein, 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 towards the water tank (4), and the conical ring (311) abuts against and seals with the stepped conical surface (12) inside the female connector (1); When the inner sealing tube (31) axially moves, it tightens the water outlet pipe (50) to reduce the water flow impact on the female connector (1).

2. The connector for the radiator water tank according to claim 1, wherein A plurality of through holes (10) are evenly distributed along the circumferential direction on the outer wall of the female connector (1), and a limiting ball (11) is arranged in each through hole (10); An annular groove (310) is arranged on the outer wall of the inner sealing tube (31), and part of the limiting ball (11) is embedded in the annular groove (310) to limit the axial displacement of the inner sealing tube (31); Wherein, after the male connector (2) is inserted into the female connector (1), the outer adjusting tube (32) moves towards the water tank (4) to the limit position, and the limiting ball (11) moves into the outer adjusting tube (32) and releases the locking of the inner sealing tube (31).

3. The connector for the radiator water tank according to claim 1, wherein A sealing sleeve (21) is sleeved on the outer wall of the male connector (2), 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); Wherein, when the male connector (2) is spirally inserted into the inner sealing tube (31), the sealing sleeve (21) is inserted between the outer adjusting tube (32) and the female connector (1) to seal the male connector (2) and the female connector (1).

4. The connector for the radiator water tank according to claim 1, wherein The conical ring (311) is adapted to abut against the stepped conical surface (12); The cone angle of the stepped conical surface (12) is 30 - 50°, and the matching cone angle deviation between the conical ring (311) and the stepped conical surface (12) ≤ ±1°.

5. The connector for the radiator water tank according to claim 2, wherein An accommodation groove (321) is annularly formed on the inner wall of the outer adjusting tube (32), and the depth of the accommodation groove (321) is greater than the radius of the limiting ball (11) and less than the diameter; Wherein, when the outer adjusting tube (32) moves towards the water tank (4) to the limit position, the limiting ball (11) falls into the accommodation groove (321) and releases the locking of the inner sealing tube (31).

6. The connector for the radiator water tank according to claim 1, wherein A return spring (13) is arranged inside 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 stepped conical surface (12); Wherein, 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).

7. The joint for a heat dissipation water tank according to claim 1, characterized in that a positioning ring (14) and a compression spring (15) abutted against the side wall of the positioning ring (14) are sleeved on the outer wall of the female joint (1); the end of the compression spring (15) abuts against the outer adjusting pipe (32), and the compression spring (15) is adapted to push the outer adjusting pipe (32) to move away from the water tank (4).

8. The joint for a heat dissipation water tank according to claim 3, characterized in that the sealing sleeve (21) is made of ethylene propylene diene monomer rubber, with a Shore hardness of 60A - 70A and a compression set rate ≤ 15%.

9. The joint for a heat dissipation water tank according to claim 8, characterized in that the inner diameter of the outer adjusting pipe (32) gradually decreases from one end close to the water outlet pipe (50) to the other end; wherein, after the sealing sleeve (21) is inserted into the inner wall of the outer adjusting pipe (32), the water flow pushes the inner sealing pipe (31) to move towards the water tank (4), and the outer adjusting pipe (32) squeezes and clamps the sealing sleeve (21).

10. The joint for a heat dissipation water tank according to claim 1, characterized in that a spiral diversion groove (312) is arranged on the inner wall of the inner sealing pipe (31), and the spiral angle of the diversion groove (312) is 20 - 35°, and the groove depth is 0.5 - 1.2 mm.

11. A working method of a joint for a heat dissipation water tank, characterized in that, Using the joint for a heat dissipation water tank according to any one of claims 1 - 10, the working method includes: the male joint (2) is spirally inserted into the inner sealing pipe (31) so that the sealing sleeve (21) on the outer wall of the male joint (2) is inserted into the gap between the outer adjusting pipe (32) and the female joint (1); after the male joint (2) is inserted into the female joint (1), the outer adjusting pipe (32) is pushed to move towards the water tank (4) so that the limit ball (11) in the female joint (1) falls into the receiving groove (321) of the outer adjusting pipe (32), releasing the axial locking of the inner sealing pipe (31); the water flow enters the male joint (2) through the water outlet pipe (50), pushing the inner sealing pipe (31) to move towards the water tank (4) until the conical ring (311) of the inner sealing pipe (31) abuts against and seals with the reduced diameter conical surface (12) of the female joint (1); the inner sealing pipe (31) is continuously pressed, and the water outlet pipe (50) is tightened through the cooperation of the conical ring (311) and the reduced diameter conical surface (12), reducing the impact fluctuation of the water flow.

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