Pipeline waterproof joint and liquid cooling system

Abstract

The utility model provides a pipeline waterproof joint and a liquid cooling system. The pipeline waterproof joint comprises a connecting ring and a connecting sleeve, the connecting ring is fixedly connected with an equipment main body; the connecting sleeve is an elastic fold type sleeve which can be stretched or folded in the front-back direction, the front end of the connecting sleeve is connected to the connecting ring, the rear end of the connecting sleeve abuts against the equipment body, and the connecting sleeve is arranged on the peripheries of the first pipe fitting and the second pipe fitting in a sleeving mode; in the stretching state, the inner diameter of the connecting sleeve is larger than the outer diameter of the first pipe fitting and the outer diameter of the second pipe fitting. In the folding state, the inner side of the connecting sleeve is tightly connected with the first pipe fitting and the second pipe fitting in an abutting mode. The pipeline waterproof connector is good in sealing performance, assembly errors between the first pipe fitting and the second pipe fitting can be effectively absorbed, the sealing performance between the pipeline waterproof connector and the pipe fittings can be effectively kept after the pipeline waterproof connector is used for a long time, and the use reliability and the service life can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage equipment, and particularly relates to a pipeline waterproof joint and a liquid cooling system. Background Art

[0002] Energy storage refers to the process of storing energy through equipment and releasing it when needed. The energy storage system includes many functional modules, and a large amount of heat will be generated after working for a period of time. To ensure the reliability of the system operation, the energy storage system generally integrates a liquid cooling system to achieve timely cooling. The liquid cooling system has many liquid cooling pipes, and the pipe joints at the pipe connections generally use rigid pipe joints for butt joint. After long-term use, the connection between the pipe joint and the pipe fitting is likely to fail, and then the coolant leaks, which will seriously affect the reliability of the overall operation of the cooling system when it is serious. Content of the Utility Model

[0003] An embodiment of the utility model provides a pipeline waterproof joint and a liquid cooling system, aiming to solve the problem that the connection between the pipe joint and the pipe fitting is likely to fail in the prior art.

[0004] To achieve the above object, the technical solution adopted by the utility model is:

[0005] In a first aspect, an embodiment of the utility model provides a pipeline waterproof joint, including:

[0006] A connection ring for fixedly connecting with the equipment main body; and

[0007] A connection sleeve, which is an elastic corrugated sleeve that can be stretched or folded in the front-back direction. The front end of the connection sleeve is connected to the connection ring, and the rear end abuts against the equipment main body. The connection sleeve is sleeved on the outer peripheries of a first pipe fitting and a second pipe fitting;

[0008] In the stretched state, the inner diameter of the connection sleeve is larger than the outer diameters of the first pipe fitting and the second pipe fitting;

[0009] In the folded state, the inner side of the connection sleeve tightly abuts against the first pipe fitting and the second pipe fitting.

[0010] In combination with the first aspect, in a possible implementation manner, a connection ring platform protrudes from the rear side of the connection ring. The front end of the connection sleeve is tightly sleeved on the outer periphery of the connection ring platform, and the front end of the connection sleeve abuts against the rear side surface of the connection ring.

[0011] In some embodiments, the connection ring platform is coaxially arranged with the central hole of the connection ring, and the inner ring surface of the connection ring platform is flush with the inner wall surface of the central hole.

[0012] In some embodiments, the connecting sleeve includes a front connecting section, a corrugated section, and a rear connecting section that are sequentially connected from front to back. The front connecting section is in the shape of a straight cylinder and is sleeved and connected to the connecting ring platform. The corrugated section can be stretched or folded in the front-back direction. The rear end face of the rear connecting section can be in close contact with the device body.

[0013] In some embodiments, the front end face of the front connecting section is a plane perpendicular to the front-back direction, and the front end face of the front connecting section can be in close contact with the rear side face of the connecting ring. The rear connecting section is in the shape of a straight cylinder, and the rear end face of the rear connecting section is a plane perpendicular to the front-back direction.

[0014] In some embodiments, the inner wall of the middle hole and the front side face of the connecting ring are transitioned through an arc surface.

[0015] In some embodiments, the corrugations of the connecting sleeve are wavy.

[0016] In some embodiments, the corrugations of the connecting sleeve are serrated.

[0017] Combined with the first aspect, in a possible implementation manner, a first mounting hole is provided on the connecting ring, and a second mounting hole is provided on the device body. The connecting ring and the device body are fixedly connected by a fastener passing through the first mounting hole and the second mounting hole.

[0018] The solution shown in the embodiments of the present application, compared with the prior art, the middle hole of the connecting ring and the connecting sleeve cooperate to form an interconnected accommodation channel. During assembly, first place the pipeline waterproof joint as a whole on the front side of the installation surface of the device body, and insert the first pipe fitting and the second pipe fitting into the front and rear ends of the accommodation channel respectively. After the first pipe fitting and the second pipe fitting are docked in place, move the connecting ring backward to approach the installation surface of the device body. At this time, the rear end of the connecting sleeve abuts against the installation surface of the device body and is gradually compressed and folded. The inner side of the corrugation on the connecting sleeve gradually approaches the first pipe fitting and the second pipe fitting as the folding degree deepens until it tightly abuts against the outer periphery of the first pipe fitting and the second pipe fitting to achieve abutting and sealing. Finally, fix the connecting ring on the device body, and the compression and folding degree of the connecting sleeve is fixed, and the pipeline waterproof joint as a whole is fixed on the device body.

[0019] First, since the connecting sleeve is an elastic component with deformability in the axial and radial directions, even if there is an assembly error between the first pipe fitting and the second pipe fitting, the deformation of the connecting sleeve can absorb this error. Second, during use, even if the main body of the device shakes, causing shaking between the first pipe fitting and the second pipe fitting, between the first pipe fitting and the main body of the device, and between the second pipe fitting and the main body of the device, the elastic deformation ability of the connecting sleeve can well adapt to this deformation. The connecting sleeve always maintains close contact with the first pipe fitting and the second pipe fitting, and can avoid the problem of connection failure between the first pipe fitting and the second pipe fitting after long-term use. Third, the first pipe fitting and the second pipe fitting may also have an assembly error in their docking path or shake along the docking path. The connecting sleeve can also maintain close contact with the first pipe fitting and the second pipe fitting on the docking path due to its own elastic deformation ability, absorb the assembly error, and buffer the shaking energy. Generally speaking, the pipeline waterproof joint of the present application has good sealing performance, can effectively absorb the assembly error between the first pipe fitting and the second pipe fitting, and can effectively maintain the sealing performance with the pipe fitting after long-term use. The use reliability and service life can both be guaranteed.

[0020] In a second aspect, an embodiment of the present invention further provides a liquid cooling system, including the above-mentioned pipeline waterproof joint.

[0021] Compared with the prior art, the solution shown in the embodiment of the present application can effectively maintain the sealing performance with the pipe fitting after long-term use by adopting the above-mentioned pipeline waterproof joint. The use reliability and service life can both be guaranteed, and the overall operation reliability of the cooling system is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional view of the pipeline waterproof joint provided by the embodiment of the present invention Figure 1 ;

[0023] Figure 2 is a three-dimensional view of the pipeline waterproof joint provided by the embodiment of the present invention Figure 2 ;

[0024] Figure 3 is a cross-sectional view of the internal structure of the pipeline waterproof joint provided by the embodiment of the present invention;

[0025] Figure 4 is Figure 3 an enlarged view of part A;

[0026] Figure 5 is a cross-sectional view of the assembly structure of the pipeline waterproof joint provided by the embodiment of the present invention with the first pipe fitting, the second pipe fitting and the main body of the device;

[0027] Description of the reference numerals:

[0028] 1. Connecting ring; 110. Middle hole; 2. Connecting sleeve; 210. Front connecting section; 220. Folded section; 230. Rear connecting section; 3. Equipment main body; 4. First pipe fitting; 5. Second pipe fitting; 6. Connecting ring platform; 7. Arc surface; 8. First mounting hole; 9. Fastener; 910. Limit boss. Detailed implementation manners

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] In the claims, description and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are all used to distinguish different objects and are not used to describe a specific order.

[0031] In the claims, description and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0032] In the claims, description and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, when using terms such as "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrally connected, and being fixedly connected through other devices or elements.

[0033] In the claims, description and above-mentioned accompanying drawings of the present utility model, when using terms such as "including", "having" and their variants, the intention is to "include but not limited to".

[0034] Please refer to Figures 1 to 5, the pipeline waterproof joint provided by the present utility model will now be described. The pipeline waterproof joint includes a connecting ring 1 and a connecting sleeve 2; the connecting ring 1 is used for fixedly connecting with the equipment main body 3; the connecting sleeve 2 is an elastic corrugated sleeve that can be stretched or folded in the front-rear direction. The front end of the connecting sleeve 2 is connected to the connecting ring 1, and the rear end abuts against the equipment main body 3. The connecting sleeve 2 is sleeved on the outer peripheries of the first pipe fitting 4 and the second pipe fitting 5; in the stretched state, the inner diameter of the connecting sleeve 2 is larger than the outer diameters of the first pipe fitting 4 and the second pipe fitting 5; in the folded state, the inner side of the connecting sleeve 2 closely abuts against the first pipe fitting 4 and the second pipe fitting 5.

[0035] In this embodiment, the implementation manner of the connecting sleeve 2 includes but is not limited to an elastic rubber sleeve, an elastic silica gel sleeve, etc., as long as the sealing requirement can be met, and it is not limited herein.

[0036] In this embodiment, the connecting ring 1 is an overall rigid member (such as a stainless steel member) for facilitating connection with the equipment main body 3; the inner diameter of the middle hole 110 of the connecting ring 1 is larger than the inner diameters of the first pipe fitting 4 and the second pipe fitting 5 to facilitate the insertion of the first pipe fitting 4 or the second pipe fitting 5. It should also be noted that this embodiment shows an embodiment where the first pipe fitting 4 is located on the front side of the second pipe fitting 5. During installation, the first pipe fitting 4 is inserted into the connecting ring 1 from the front side, and the second pipe fitting 5 is inserted into the connecting sleeve 2 from the rear side.

[0037] In this embodiment, the thickness of the connecting ring 1 can be set to be relatively small as long as the assembly requirement can be met. This embodiment exemplarily shows a flat plate-shaped connecting ring 1, which not only has a small volume and light weight, but also is convenient for assembly, and at the same time conforms to the design concept of miniaturization and compactness.

[0038] It should be noted that after being compressed, the connecting sleeve 2 can closely abut against the outer peripheral surfaces of both the first pipe fitting 4 and the second pipe fitting 5, that is, both sides of the docking joint can effectively abut against the connecting sleeve 2, thereby effectively sealing the docking area. In addition, the folds on the connecting sleeve 2 need to be continuously distributed along the circumferential direction of the connecting sleeve 2 to facilitate effective sealing.

[0039] The pipeline waterproof joint provided in this embodiment, compared with the prior art, forms an interconnected accommodation channel by the cooperation of the middle hole 110 of the connecting ring 1 and the connecting sleeve 2. During assembly, first place the whole pipeline waterproof joint on the front side of the installation surface of the equipment main body 3, and insert the first pipe fitting 4 and the second pipe fitting 5 from the front and rear ends of the accommodation channel respectively; after the first pipe fitting 4 and the second pipe fitting 5 are butted in place, move the connecting ring 1 backward to approach the installation surface of the equipment main body 3. At this time, the rear end of the connecting sleeve 2 abuts against the installation surface of the equipment main body 3 and is gradually compressed and folded. The inner side of the wrinkles on the connecting sleeve 2 gradually approaches the first pipe fitting 4 and the second pipe fitting 5 as the folding degree deepens until it tightly abuts against the outer periphery of the first pipe fitting 4 and the second pipe fitting 5 to achieve abutting seal; finally, fix the connecting ring 1 on the equipment main body 3, the compression and folding degree of the connecting sleeve 2 is fixed, and the whole pipeline waterproof joint is fixed on the equipment main body 3.

[0040] First of all, since the connecting sleeve 2 is an elastic member and has axial and radial deformability, even if there is an assembly error between the first pipe fitting 4 and the second pipe fitting 5, the deformation of the connecting sleeve 2 can absorb this error. Secondly, during use, even if the equipment main body 3 shakes, causing shaking between the first pipe fitting 4 and the second pipe fitting 5, between the first pipe fitting 4 and the equipment main body 3, and between the second pipe fitting 5 and the equipment main body 3, the elastic deformation ability of the connecting sleeve 2 can well adapt to this deformation, and the connecting sleeve 2 always maintains close contact with the first pipe fitting 4 and the second pipe fitting 5, and the problem of connection failure between the first pipe fitting 4 and the second pipe fitting 5 can be avoided after long-term use. Thirdly, the first pipe fitting 4 and the second pipe fitting 5 may also have an assembly error on their docking path or shake along the docking path. The connecting sleeve 2 can also maintain a close contact state with the first pipe fitting 4 and the second pipe fitting 5 on the docking path due to its own elastic deformation ability, absorb the assembly error at the same time, and buffer the shaking energy. Generally speaking, the pipeline waterproof joint of this embodiment has good sealing performance, can effectively absorb the assembly error between the first pipe fitting 4 and the second pipe fitting 5, and can effectively maintain the sealing performance with the pipe fittings after long-term use, and the use reliability and service life can be guaranteed.

[0041] In some embodiments, the above-mentioned connecting ring 1 can adopt the structure as Figures 1 to 5 shown. Refer to Figures 1 to 5 , a connecting ring platform 6 protrudes from the rear side of the connecting ring 1, and the front end of the connecting sleeve 2 is tightly sleeved on the outer periphery of the connecting ring platform 6, and the front end of the connecting sleeve 2 abuts against the rear side surface of the connecting ring 1. In this embodiment, the elastic connecting sleeve 2 and the rigid connecting ring 1 are connected by a sleeved method. The connection method is simple, which can not only ensure the reliability of the connection, but also effectively avoid opening holes or slots on the connecting sleeve 2, thereby avoiding the problem of tearing of the connecting sleeve 2 caused by opening holes or slots, and prolonging the service life of the connecting sleeve 2.

[0042] On the basis of the above embodiments, refer to Figures 1 to 5 , in order to facilitate the docking of the first pipe fitting 4 and the second pipe fitting 5 without obstruction during insertion, and at the same time enable the connecting sleeve 2 to more effectively abut tightly against the outer peripheral surfaces of the first pipe fitting 4 and the second pipe fitting 5, the connecting ring platform 6 is coaxially arranged with the central hole 110 of the connecting ring 1, and the inner ring surface of the connecting ring platform 6 is flush with the inner wall surface of the central hole 110.

[0043] In some embodiments, the above connecting sleeve 2 can adopt the structure as shown in Figures 1 to 5 . Refer to Figures 1 to 5 , the connecting sleeve 2 includes a front connecting section 210, a corrugated section 220 and a rear connecting section 230 that are sequentially connected from front to back; the front connecting section 210 is in a straight cylindrical shape to facilitate sleeving connection with the connecting ring platform 6; the corrugated section 220 can expand or fold in the front-back direction to facilitate achieving abutting and sealing with the first pipe fitting 4 and the second pipe fitting 5; the rear end surface of the rear connecting section 230 can tightly abut against the equipment main body 3, and through the abutment, the conduction of the compression and folding acting force is realized, and at the same time, the sealing contact between the connecting sleeve 2 and the equipment main body 3 can also be realized.

[0044] On the basis of the above embodiments, refer to Figures 1 to 5 , the front end surface of the front connecting section 210 is a plane perpendicular to the front-back direction, and the front end surface of the front connecting section 210 can tightly abut against the rear side surface of the connecting ring 1. Through this setting method, not only can the compression and folding acting force of the connecting ring 1 be effectively transmitted to the connecting sleeve 2, but also the effect of contact sealing can be generated between the connecting sleeve 2 and the connecting ring 1, improving the overall assembly sealing performance of the pipeline waterproof joint.

[0045] In addition, the rear connecting section 230 is in a straight cylindrical shape, and the rear end surface of the rear connecting section 230 is a plane perpendicular to the front-back direction, which can not only effectively transmit the compression and folding acting force of the equipment main body 3 to the connecting sleeve 2, but also generate the effect of contact sealing between the connecting sleeve 2 and the equipment main body 3, improving the overall assembly sealing performance of the pipeline waterproof joint.

[0046] In some embodiments, refer to Figures 1 to 5 , the inner wall of the central hole 110 and the front side surface of the connecting ring 1 are transitioned through an arc surface 7. When the first pipe fitting 4 is inserted into the connecting ring 1 from the front side, the arc surface 7 can play a guiding role for the first pipe fitting 4, so that the front end opening of the central hole 110 forms a flared shape, facilitating the first pipe fitting 4 to enter the central hole 110 of the connecting ring 1.

[0047] In some specific embodiments of the corrugated area of the connecting sleeve 2, refer to Figures 1 to 5, the folds of the connecting sleeve 2 are wavy, and both the wave crests and wave troughs are transitioned through the arc surface 7, effectively avoiding the problem of tearing in the wave crest or wave trough area caused by stress concentration during the folding or unfolding process. It should be noted that the wave trough area of the folds of the connecting sleeve 2 is in close contact with the first pipe fitting 4 and the second pipe fitting 5.

[0048] In some specific embodiments of the fold area of the connecting sleeve 2, the folds of the connecting sleeve 2 are serrated, with a large range of unfolding or folding, and are suitable for scenarios where the connecting sleeve 2 needs to be greatly compressed and folded.

[0049] In some specific embodiments capable of realizing the connection between the connecting ring 1 and the device main body 3, see Figure 2 , a first mounting hole 8 is provided on the connecting ring 1, a second mounting hole is provided on the device main body 3, and the connecting ring 1 and the device main body 3 are fixedly connected by a fastener 9 passing through the first mounting hole 8 and the second mounting hole. In this embodiment, the connection between the connecting ring 1 and the device main body 3 is realized through the fastener 9, which is not only convenient for connection but also can provide support between the connecting ring 1 and the device main body 3, improving the stability of the position of the connecting ring 1. It should be noted that a limiting boss 910 is provided at the front end of the fastener 9. Under the extrusion of the limiting boss 910 and the connecting sleeve 2, the position of the connecting ring 1 is stable. If the connecting sleeve 2 is deformed, the connecting sleeve 2 can also drive the connecting ring 1 to move slightly in the front-back direction, playing a buffering role.

[0050] In the specific implementation manner of the first type of first mounting hole 8 and second mounting hole, see Figure 1 , Figure 2 and 5 , the first mounting hole 8 is a through hole, the second mounting hole is a threaded hole, and the fastener 9 is a threaded fastener 9. During assembly, the threaded fastener 9 is sequentially inserted into the first mounting hole 8 and the second mounting hole from the front side and finally screwed and locked with the second mounting hole. Among them, the nut of the threaded fastener 9 forms the above-mentioned limiting boss 910.

[0051] In the specific implementation manner of the second type of first mounting hole 8 and second mounting hole, not shown in the figure, the first mounting hole 8 is a through hole, the second mounting hole is a clamping hole, and the fastener 9 is a direct insertion type snap. During assembly, the direct insertion type snap is sequentially inserted into the first mounting hole 8 and the second mounting hole from the front side and finally clamped and fixed with the second mounting hole.

[0052] In the specific implementation manner of the third type of first mounting hole 8 and second mounting hole, not shown in the figure, the first mounting hole 8 is a through hole, the second mounting hole is a riveting hole, and the fastener 9 is a riveting pin. During assembly, the riveting pin is sequentially inserted into the first mounting hole 8 and the second mounting hole from the front side and finally riveted and fixed with the second mounting hole. Among them, the riveting head of the riveting pin forms the above-mentioned limiting boss 910.

[0053] Based on the above first type of specific implementation manner, since there is also a connecting sleeve 2 between the connecting ring 1 and the device main body 3, even if the connecting sleeve 2 is compressed and folded, there will be a gap between the connecting ring 1 and the device main body 3. If the gap distance is too large, there will be a problem of unstable installation and fixation. To solve these problems, a support member is provided between the connecting ring 1 and the device main body 3, and the support member is used for supporting and positioning between the connecting ring 1 and the device main body 3.

[0054] During specific implementation, the front end of the support member can be fixed on the connecting ring 1 by means of clamping, threaded connection, etc. Or, the rear end of the support member is fixed on the device main body 3 by means of clamping, threaded connection, etc. Taking the setting method of the support member connected to the connecting ring 1 as an example for more specific description, the rear end of the support member can be in contact with the device main body 3, or there can be a certain distance (not exceeding 0.7 mm) between the rear end of the support member and the device main body 3, so as to play an effective positioning role; the setting method in the case where the support member is connected to the device main body 3 is similar and will not be elaborated here.

[0055] Based on the same inventive concept, the embodiment of the present application also provides a liquid cooling system, including the above-mentioned pipeline waterproof joint.

[0056] Compared with the prior art, the liquid cooling system provided in this embodiment can effectively maintain the sealing performance with the pipe fittings after long-term use by adopting the above-mentioned pipeline waterproof joint. The use reliability and service life can be guaranteed, and the overall operation reliability of the cooling system is ensured.

[0057] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pipeline waterproof joint, characterized in that, Comprising: A connecting ring (1) for fixedly connecting with the device main body (3); And A connecting sleeve (2), which is an elastic corrugated sleeve capable of stretching or folding in the front-back direction. The front end of the connecting sleeve (2) is connected to the connecting ring (1), and the rear end abuts against the device main body (3). The connecting sleeve (2) is sleeved on the outer perimeters of a first pipe fitting (4) and a second pipe fitting (5); In the stretched state, the inner diameter of the connecting sleeve (2) is larger than the outer diameters of the first pipe fitting (4) and the second pipe fitting (5); In the folded state, the inner side of the connecting sleeve (2) closely abuts against the first pipe fitting (4) and the second pipe fitting (5).

2. The pipeline waterproof joint according to claim 1, characterized in that A connecting ring platform (6) protrudes from the rear side of the connecting ring (1). The front end of the connecting sleeve (2) is closely sleeved on the outer perimeter of the connecting ring platform (6), and the front end of the connecting sleeve (2) abuts against the rear side surface of the connecting ring (1).

3. The pipeline waterproof joint according to claim 2, characterized in that, The connecting ring platform (6) is coaxially arranged with the central hole (110) of the connecting ring (1), and the inner ring surface of the connecting ring platform (6) is flush with the inner wall surface of the central hole (110).

4. The pipeline waterproof joint according to claim 2, characterized in that, The connecting sleeve (2) includes a front connecting section (210), a corrugated section (220), and a rear connecting section (230) that are sequentially connected from front to back. The front connecting section (210) is in a straight tube shape and is sleeved and connected with the connecting ring platform (6); the corrugated section (220) can stretch or fold in the front-back direction; the rear end surface of the rear connecting section (230) can closely abut against the device main body (3).

5. The pipeline waterproof joint according to claim 4, characterized in that, The front end surface of the front connecting section (210) is a plane perpendicular to the front-back direction, and the front end surface of the front connecting section (210) can closely abut against the rear side surface of the connecting ring (1); the rear connecting section (230) is in a straight tube shape, and the rear end surface of the rear connecting section (230) is a plane perpendicular to the front-back direction.

6. The pipeline waterproof joint according to claim 3, characterized in that The inner wall of the central hole (110) and the front side surface of the connecting ring (1) are transitioned through an arc surface (7).

7. The pipeline waterproof joint according to claim 1 or 2, characterized in that, The corrugations of the connecting sleeve (2) are wavy.

8. The pipeline waterproof joint according to claim 1 or 2, characterized in that, The corrugations of the connecting sleeve (2) are serrated.

9. The pipeline waterproof joint according to claim 1, wherein, A first mounting hole (8) is provided on the connecting ring (1), and a second mounting hole is provided on the device main body (3). The connecting ring (1) and the device main body (3) are fixedly connected by a fastener (9) passing through the first mounting hole (8) and the second mounting hole.

10. A liquid cooling system, characterized in that, Including the pipeline waterproof joint according to any one of claims 1-9.

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