Connecting pipe assembly and heat exchanger

Abstract

The utility model provides a connecting pipe assembly and a heat exchanger. The connecting pipe assembly comprises a first connecting pipe and a second connecting pipe, the threaded connector is detachably arranged on the first connecting pipe in a sleeving mode, the threaded connector comprises a plurality of split petals, the outer surface of each petal is provided with a thread structure, the multiple petals are sequentially connected end to end in the circumferential direction of the first connecting pipe, and the thread structures defined by the multiple petals form a continuous thread structure used for being in threaded connection with an external system pipeline. By means of the scheme, the problems that in the prior art, when the connecting pipe and the connector are connected in a welding mode, consumed time is long in the process of replacing the connector, and cost is high can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field, specifically, a kind of pipe connection assembly and heat exchanger. BACKGROUND

[0002] Heat exchanger is also called heat exchanger, it is a kind of equipment for transferring heat between two or more fluids. Heat exchanger usually includes heat exchanger core and pipe connection assembly, pipe connection assembly usually includes pipe and connector arranged at the end of pipe, the end of pipe without connector is welded with the heat exchange pipe line of heat exchanger core, and the connector is used to communicate with the pipe of external system, such as air conditioning unit. The outer peripheral surface of connector is provided with thread structure, and the connector is welded with pipe, and the connector is threadedly connected with the pipe of external system.

[0003] When air conditioning unit is in long-term operation, the thread structure can be gradually worn or even damaged due to continuous mechanical vibration, temperature cycle change or material fatigue, etc., which can cause leakage of refrigerant or cooling water and other fluids. When the thread structure is worn or damaged, the pipe connection assembly needs to be cut and replaced as a whole with special tools, which takes a long time and costs a lot. SUMMARY

[0004] The utility model provides a kind of pipe connection assembly and heat exchanger to solve the above problems.

[0005] According to one aspect of the utility model, a kind of pipe connection assembly is provided, and the pipe connection assembly includes: first pipe;Threaded connector, detachably set on first pipe, threaded connector includes multiple split sets of split halves, each split half has thread structure on its outer surface, multiple split halves are sequentially connected head-to-tail along the circumference of first pipe, and the thread structure after the enclosure of multiple split halves forms continuous thread structure for threadedly connecting with the pipe of external system.

[0006] Further, the threaded connector further includes: a plug-in structure arranged between the two adjacent split halves, and the two adjacent split halves are plug-in matched through the plug-in structure.

[0007] Further, the plug-in structure includes a plug-in convex part and a plug-in concave part, in the two adjacent split halves, the plug-in convex part is arranged on one of the split halves, the plug-in convex part protrudes out of the corresponding split half along the circumference of the threaded connector, the plug-in concave part is arranged on the end surface of the other split half facing the plug-in convex part, and the plug-in convex part and the plug-in concave part are plug-in matched.

[0008] Further, the split half includes a main body part and a flange part connected to each other, the thread structure is arranged on the outer surface of the main body part, and the flange part protrudes out of the main body part along the radial direction of the threaded connector;The plug-in structure is arranged between the flange parts of the two adjacent split halves;And / or, the plug-in structure is arranged between the main body parts of the two adjacent split halves.

[0009] Further, the plug-in structure comprises a first plug-in structure arranged between the flange portions of two adjacent segments, the first plug-in structure comprising a first plug-in protrusion and a first plug-in recess, the first plug-in protrusion being arranged on the flange portion of one of the two adjacent segments and protruding along the circumference of the threaded joint, and the first plug-in recess being arranged on the end of the flange portion of the other segment facing the first plug-in protrusion, the first plug-in protrusion and the first plug-in recess being plug-in matched.

[0010] Further, the threaded joint further comprises a fastener, the first plug-in protrusion and the first plug-in recess being detachably connected by the fastener.

[0011] Further, the plug-in structure comprises a second plug-in structure arranged between the body portions of two adjacent segments, the second plug-in structure comprising a second plug-in protrusion and a second plug-in recess, the second plug-in protrusion being arranged on the end face of the body portion of one of the two adjacent segments and protruding along the circumference of the threaded joint, and the second plug-in recess being arranged on the end face of the end of the body portion of the other segment facing the second plug-in protrusion, the second plug-in protrusion and the second plug-in recess being plug-in matched.

[0012] Further, along the radial direction of the threaded joint, the second plug-in recess penetrates through the corresponding segment, the thickness of the segment is equal to the thickness of the corresponding second plug-in protrusion, and the thread structure of the outer surface of the segment extends to the outer surface of the corresponding second plug-in protrusion.

[0013] Further, the pipe assembly comprises a first limiting protrusion arranged on the outer surface of the first pipe, and a second limiting protrusion arranged on the outer surface of the first pipe, the second limiting protrusion and the first limiting protrusion being spaced apart along the axial direction of the first pipe, the threaded joint being located between the first limiting protrusion and the second limiting protrusion, and the first limiting protrusion and the second limiting protrusion being respectively matched with the two ends of the axial direction of the threaded joint.

[0014] Further, the pipe assembly further comprises a first sealing member sleeved on the first pipe and located between the first limiting protrusion and the threaded joint, the end of the threaded joint close to the first sealing member being tightly matched with the first limiting protrusion, the first sealing member being used for sealing the gap between the first pipe and the threaded joint, and / or a second sealing member sleeved on the first pipe and located between the second limiting protrusion and the threaded joint, the end of the threaded joint close to the second sealing member being tightly matched with the second limiting protrusion, the second sealing member being used for sealing the gap between the first pipe and the threaded joint.

[0015] Further, the distance between the mutually close end faces of the first and second limiting protrusions and the distance between the two end faces of the threaded joint are different by 2-6 mm along the axial direction of the first connecting pipe.

[0016] Further, the end of the threaded joint close to the first limiting protrusion is arranged to pass through the second connecting pipe and threadedly engage with the second connecting pipe, and the projection of the first limiting protrusion along the axial direction of the first connecting pipe is located within the contour formed by the small diameter of the threaded structure.

[0017] Further, the end of the threaded joint close to the first limiting protrusion is arranged to pass through the second connecting pipe and threadedly engage with the second connecting pipe, and the distance between the first limiting protrusion and the end of the first connecting pipe close to the first limiting protrusion is 8-15 mm.

[0018] Further, the threaded joint comprises a threaded segment and a flange segment connected in sequence along the axial direction, the outer surface of the threaded segment has a threaded structure, the end of the threaded segment away from the flange segment is limitedly matched with the first limiting protrusion, the outer diameter of the flange segment is larger than that of the threaded segment, the threaded segment is arranged to pass through the second connecting pipe and threadedly engage with the second connecting pipe, and the end of the flange segment away from the threaded segment is limitedly matched with the second limiting protrusion.

[0019] According to another aspect of the present application, a heat exchanger is provided, which comprises: a heat exchanger core body having a heat exchange channel; and a first connecting pipe of a connecting pipe assembly in communication with an end of the heat exchange channel.

[0020] The threaded joint is designed to be composed of a plurality of segments connected in sequence along the circumference of the first connecting pipe, and the threaded joint is detachably sleeved on the first connecting pipe, so that when the threaded joint is maintained or replaced, the threaded joint can be disassembled into a plurality of segments to be directly disassembled from the first connecting pipe, without disassembling the entire connecting pipe assembly, thereby reducing the maintenance cost and time and improving the maintenance efficiency of the connecting pipe assembly.

[0021] The threaded joint is composed of a plurality of segments arranged in a plurality of parts, and the outer surface of the plurality of segments after being enclosed can form a continuous threaded structure, ensuring the stable continuity of the threaded structure on the threaded joint, so that the threaded joint can be stably and smoothly connected with other threaded pipes, improving the reliability and working stability of the threaded joint. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the present application. The use of the same reference numerals in different drawings indicates similar or identical components.

[0023] Figure 1 A structure schematic view of the connecting pipe assembly is shown;

[0024] Figure 2 A first explosion structure schematic view of the connecting pipe assembly is shown;

[0025] Figure 3 An explosion structure schematic view of the threaded joint is shown;

[0026] Figure 4 A structure schematic view of the threaded joint is shown;

[0027] Figure 5 A structure schematic view of one of the split halves is shown;

[0028] Figure 6 A structure schematic view of another split half is shown;

[0029] Figure 7 A second explosion structure schematic view of the connecting pipe assembly is shown.

[0030] Among them, the above-mentioned drawings include the following reference signs:

[0031] 10, first connecting pipe;

[0032] 20, threaded joint; 21, threaded section; 22, flange section;

[0033] 30, split half; 31, main body part; 32, flange part;

[0034] 40, first plug-in structure; 41, first plug-in convex part; 42, first plug-in concave part;

[0035] 50, fastener;

[0036] 60, second plug-in structure; 61, second plug-in convex part; 62, second plug-in concave part;

[0037] 70, limiting structure; 71, first limiting convex part; 72, second limiting convex part. DETAILED DESCRIPTION

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0039] like Figures 1 to 7 As shown, this utility model provides a pipe assembly, which includes a first pipe 10 and a threaded connector 20. The threaded connector 20 is detachably sleeved on the first pipe 10. The threaded connector 20 includes multiple separately arranged segments 30. The outer surface of each segment 30 has a threaded structure. The multiple segments 30 are connected end to end along the circumference of the first pipe 10. The threaded structure formed by the multiple segments 30 is enclosed to form a continuous threaded structure for threaded connection with external system pipelines.

[0040] By applying the technical solution of this utility model, the threaded connector 20 is detachably sleeved on the first connecting pipe 10. When the threaded connector 20 needs to be replaced, it can be removed from the first connecting pipe 10 without the need for additional tools to cut and replace the entire connecting pipe assembly. This facilitates the disassembly and replacement of the threaded connector 20, resulting in shorter maintenance time and lower costs. Furthermore, in this solution, the threaded connector 20 includes multiple separately arranged segments 30. When the thread structure on the outer surface of a segment 30 is severely worn, the corresponding segment 30 can be replaced. This design further reduces costs.

[0041] It is understandable that the threaded joint 20 is composed of several separate segments 30, and the thread structure formed by the enclosing of several segments 30 forms a continuous thread structure, which enables the threaded joint 20 to mate with other threaded pipe threads, thereby improving the reliability and operational stability of the threaded joint 20.

[0042] This scheme does not limit the specific number of 30 segments; it can be set to two, three, or four, etc.

[0043] In the implementation of this scheme, there are two segments 30, that is, a threaded joint 20 is composed of two segments 30 connected together.

[0044] Further, the threaded joint 20 further comprises a plug-in structure, which is arranged between two adjacent segments 30 and plugs the two adjacent segments 30 together. In this way, the two segments 30 can be quickly and accurately connected through the plug-in structure without the need for complex alignment process. Moreover, the above arrangement makes it easier for the worker to disassemble the threaded joint 20.

[0045] In the embodiment of the present scheme, the plug-in structure is arranged between the mutually approaching end portions of the two adjacent segments 30.

[0046] As shown in Figures 3 to 6 , specifically, the plug-in structure comprises a plug-in protrusion and a plug-in recess. In the two adjacent segments 30, the plug-in protrusion is arranged on one of the segments 30 and protrudes outward along the circumference of the threaded joint 20, and the plug-in recess is arranged on the end face of the other segment 30 facing the plug-in protrusion, and the plug-in protrusion and the plug-in recess are plugged together. In the assembly process, the plug-in protrusion on one segment 30 is inserted into the plug-in recess on the corresponding other segment 30, thereby achieving the connection of the two segments 30. The plug-in protrusion and the plug-in recess are simple in structure and facilitate the assembly and disassembly of the two segments 30.

[0047] In the embodiment of the present scheme, the segment 30 comprises a main body portion 31 and a flange portion 32 connected to each other, the thread structure is arranged on the outer surface of the main body portion 31, and the flange portion 32 protrudes outward from the main body portion 31 along the radial direction of the threaded joint 20. In this way, the structural strength of the threaded joint 20 can be improved.

[0048] Further, the flange portion 32 is located at one end portion in the axial direction of the segment 30. In this way, after the assembly of the plurality of segments 30, the flange portions 32 of the plurality of segments 30 are located at one end portion in the axial direction of the threaded joint 20, thereby ensuring the continuity of the thread structure of the threaded joint 20.

[0049] As shown in Figure 1 and Figure 2 , in the embodiment of the present scheme, the segment 30 and the flange portion 32 extend along the circumference of the first pipe joint 10. The threaded joint 20 after the assembly of the plurality of segments 30 comprises thread segments 21 and flange segments 22 connected in sequence along the axial direction. The main body portions 31 of the plurality of segments 30 enclose the thread segments 21, and the outer surface of the thread segments 21 has a thread structure. The flange portions 32 of the plurality of segments 30 enclose the flange segments 22, and the flange segments 22 are annularly arranged on the outer circumference of the first pipe joint 10, and the maximum outer diameter of the thread segments 21 is smaller than the outer diameter of the flange segments 22.

[0050] The outer contour of the flange section 22 is not limited in shape, and can be circular or polygonal. In the embodiment, the outer contour of the flange section 22 is hexagonal.

[0051] In some embodiments of the present application, the flange portions 32 of two adjacent segments 30 are provided with a plug-in structure.

[0052] In some other embodiments of the present application, the main body portions 31 of two adjacent segments 30 are provided with a plug-in structure.

[0053] In the embodiment, when the main body portions 31 and the flange portions 32 of two adjacent segments 30 are provided with a plug-in structure, the connection of the adjacent segments 30 is more stable and reliable, and the structural stability of the threaded joint 20 is improved.

[0054] Specifically, the plug-in structure includes a first plug-in structure 40 and a second plug-in structure 60. The first plug-in structure 40 is arranged between the flange portions 32 of two adjacent segments 30, and the second plug-in structure 60 is arranged between the main body portions 31 of two adjacent segments 30.

[0055] It can be understood that the flange portion 32 has two end faces arranged opposite along the circumference of the first pipe 10. In the embodiment, the first plug-in structure 40 includes a first plug-in protrusion 41 and a first plug-in recess 42. In two adjacent segments 30, the first plug-in protrusion 41 is arranged on the end face of the flange portion 32 of one of the segments 30, the first plug-in protrusion 41 protrudes along the circumference of the threaded joint 20 to the corresponding segment 30, and the first plug-in recess 42 is arranged on the end face of the flange portion 32 of the other segment 30 facing the first plug-in protrusion 41. The first plug-in protrusion 41 and the first plug-in recess 42 are plug-in matched.

[0056] Further, the threaded joint 20 further includes a fastener 50, and the first plug-in protrusion 41 and the first plug-in recess 42 are detachably connected through the fastener 50. In the present application, the first plug-in protrusion 41 and the first plug-in recess 42 are both provided with a fastening connection hole penetrating along the axis direction of the first pipe 10, and when the corresponding first plug-in protrusion 41 and the first plug-in recess 42 are plug-in matched in place, the fastening connection holes on the first plug-in protrusion 41 and the first plug-in recess 42 are coaxial. When the corresponding first plug-in protrusion 41 and the first plug-in recess 42 are plug-in matched in place, the fastener 50 is inserted and penetrates through the fastening connection holes on the first plug-in protrusion 41 and the first plug-in recess 42, which can fasten the first plug-in protrusion 41 and the first plug-in recess 42 together, improve the connection stability and reliability of the first plug-in structure 40, and further improve the connection strength and structural stability of the entire threaded joint 20.

[0057] In the present scheme, the width dimension of the first insertion protrusion 41 on one segment 30 gradually decreases in the direction away from the corresponding flange portion 32. The shape of the corresponding first insertion recess 42 on the other segment 30 is adapted to the shape of the first insertion protrusion 41. In this way, the insertion fit of the first insertion protrusion 41 and the first insertion recess 42 is facilitated. It can be understood that the width dimension of the first insertion protrusion 41 refers to the dimension in the direction from the inner surface to the outer surface of the segment 30.

[0058] In the embodiments of the present scheme, the second insertion structure 60 includes a second insertion protrusion 61 and a second insertion recess 62. In the two adjacent segments 30, the second insertion protrusion 61 is arranged on the end surface of the main body portion 31 of one of the segments 30 and protrudes in the circumferential direction of the threaded joint 20 beyond the corresponding main body portion 31, and the second insertion recess 62 is arranged on the end surface of the main body portion 31 of the other segment 30 facing the second insertion protrusion 61, and the second insertion protrusion 61 and the second insertion recess 62 are in insertion fit. In the present scheme, the design of the second insertion protrusion 61 and the second insertion recess 62 ensures accurate positioning of the segments 30 during assembly. When assembling, the second insertion protrusion 61 on one segment 30 is aligned with the second insertion recess 62 on the other segment 30 and inserted, thereby achieving quick positioning and connection of the two segments 30 through the second insertion structure 60.

[0059] It can be understood that when the first insertion protrusion 41 is arranged on the end surface of one segment 30, the first insertion recess 42 is arranged on the corresponding end surface of the other segment 30; and when the second insertion protrusion 61 is arranged on the end surface of one segment 30, the second insertion recess 62 is arranged on the corresponding end surface of the other segment 30.

[0060] In some embodiments of the present scheme, the two segments 30 are identical in structure. Each segment 30 has a leading end and a trailing end arranged opposite in the clockwise direction, and the leading end of each segment 30 is provided with the first insertion protrusion 41 and the second insertion protrusion 61, and the trailing end of each segment 30 is provided with the first insertion recess 42 and the second insertion recess 62.

[0061] In the embodiments of the present scheme, the two segments 30 are different in structure.

[0062] In the embodiments of the present scheme, the leading end and the trailing end of one segment 30 are identical in structure and are provided with the first insertion protrusion 41 and the second insertion protrusion 61, and the leading end and the trailing end of the other segment 30 are identical in structure and are provided with the first insertion recess 42 and the second insertion recess 62.

[0063] Further, along the radial direction of the threaded joint 20, the second insertion recess 62 penetrates through the corresponding segment 30, the thickness of the segment 30 is equal to the thickness of the corresponding second insertion protrusion 61, and the thread structure on the outer surface of the segment 30 extends to the outer surface of the corresponding second insertion protrusion 61. In this way, the structural strength of the threaded joint 20 at the second insertion structure 60 can be enhanced, the structural problems caused by the structural defects of the connection can be reduced, and the stability of the threaded joint 20 is improved. At the same time, the thread structure on the outer surface of the segment 30 extends to the outer surface of the corresponding second insertion protrusion 61, ensuring the stability and continuity of the thread on the outer surface of the threaded joint 20.

[0064] In the embodiment of the present scheme, the inner circumferential surface of the threaded joint 20 forms a smooth cylindrical surface structure. In this way, the stability of the mutual sleeving connection of the threaded joint 20 and the first pipe 10 can be improved.

[0065] As shown in Figure 2 and Figure 7 Further, the pipe assembly further comprises a limiting structure 70, which is arranged between the first pipe 10 and the threaded joint 20, and is used to limit the relative position of the threaded joint 20 and the first pipe 10 in the axial direction of the first pipe 10. The limiting structure limits the position of the threaded joint 20 in the axial direction of the first pipe 10, so that the threaded joint 20 can be accurately aligned to the preset position of the first pipe 10 during installation, and the relative position of the threaded joint 20 and the first pipe 10 in the axial direction cannot be changed during work, thereby improving the reliability of the pipe assembly.

[0066] Specifically, the limiting structure 70 comprises a first limiting protrusion 71 and a second limiting protrusion 72, the first limiting protrusion 71 is arranged on the outer surface of the first pipe 10, and the second limiting protrusion 72 is arranged on the outer surface of the first pipe 10. The second limiting protrusion 72 and the first limiting protrusion 71 are spaced apart along the axial direction of the first pipe 10, the threaded joint 20 is located between the first limiting protrusion 71 and the second limiting protrusion 72, and the first limiting protrusion 71 and the second limiting protrusion 72 are respectively limited in position with both ends of the axial direction of the threaded joint 20. After the threaded joint 20 is installed, the first limiting protrusion 71 and the second limiting protrusion 72 can limit the relative position of the threaded joint 20 and the first pipe 10 in the axial direction from being changed, thereby improving the reliability and structural stability of the entire pipe assembly, and the installation process of the threaded joint 20 is also more convenient.

[0067] Specifically, during the installation of the threaded connector 20, the two segments 30 are aligned and inserted between the first limiting protrusion 71 and the second limiting protrusion 72, and the insertion structure between the two segments 30 is aligned and fitted. The first insertion protrusion 41 and the first insertion recess 42 of the first insertion structure 40 are connected by the corresponding fasteners 50, thus completing the connection process between the threaded connector 20 and the first connecting pipe 10.

[0068] Furthermore, the connector assembly also includes a first seal, which is fitted onto the first connector 10 and located between the first limiting protrusion 71 and the threaded connector 20. The threaded connector 20 has one end near the first seal, and the first seal fits tightly with the first limiting protrusion 71. The first seal is used to seal the gap between the first connector 10 and the threaded connector 20. The first seal improves the sealing performance between the threaded connector 20 and the first connector 10.

[0069] In this embodiment, the connector assembly further includes a second seal. The second seal is sleeved on the first connector 10 and located between the second limiting protrusion 72 and the threaded connector 20. The end of the threaded connector 20 closest to the second seal, and the second seal and the second limiting protrusion 72 are tightly fitted together. The second seal is used to seal the gap between the first connector 10 and the threaded connector 20. The dual sealing effect of the second seal and the first seal can further improve the sealing performance of the connection between the threaded connector 20 and the first connector 10.

[0070] like Figures 3 to 6 As shown in this embodiment, both ends of the segment 30 along the axial direction are provided with arc-shaped grooves. Along the circumference of the first connector 10, the extension direction of the arc-shaped grooves is the same as the extension direction of the inner circumferential surface of the segment 30, and both ends of the arc-shaped grooves are open structures. After the two segments 30 are spliced ​​to form the threaded connector 20, the two arc-shaped grooves on the same end face can form a complete annular groove. The first seal and the second seal are respectively disposed in the annular grooves at both ends along the axial direction of the threaded connector, providing installation positions for the first and second seals, which helps to improve the sealing performance of the connector assembly.

[0071] like Figure 7 As shown, further, along the axial direction of the first connector 10, the difference between the distance between the adjacent end faces of the first limiting protrusion 71 and the second limiting protrusion 72, and the difference between the distance between the two end faces of the threaded connector 20, is 2mm to 6mm. A certain allowance difference is provided between the distance between the adjacent end faces of the first limiting protrusion 71 and the second limiting protrusion 72 and the distance between the two end faces of the threaded connector 20. This allowance space is used for assembling the first and second sealing elements to ensure a better sealing effect and improve the structural rationality of the connector assembly.

[0072] In the present scheme, the excess needs to be kept within a certain reasonable range, the excess is too small, which will affect the installation of the first sealing member and the second sealing member, the excess is too large, which will make the threaded joint 20 cannot be connected with the first pipe 10 stably, the threaded joint 20 may be axially displaced relative to the first pipe 10.

[0073] The difference between the distance between the mutually close end faces of the first limiting protrusion 71 and the second limiting protrusion 72 and the distance between the two end faces of the threaded joint 20 can be set to 2mm, 3mm, 4mm, 5mm or 6mm, etc.

[0074] Further, the end of the threaded joint 20 close to the first limiting protrusion 71 is used for being threaded in the second pipe and being screwed with the second pipe, and the projection of the first limiting protrusion 71 is located within the contour formed by the small diameter of the threaded structure along the axial direction of the first pipe 10. The above setting sets the outer diameter of the first limiting protrusion 71 to be not greater than the small diameter of the threaded structure on the threaded joint 20. When connecting the pipe assembly with the second pipe, the second pipe can be sleeved on the end where the first limiting protrusion 71 is located, so that the first limiting protrusion 71 does not affect the connection of the threaded joint 20 with the second pipe, and the smooth connection of the first pipe 10 with the second pipe is ensured.

[0075] Further, the end of the threaded joint 20 close to the first limiting protrusion 71 is used for being threaded in the second pipe and being screwed with the second pipe, and the projection of the first limiting protrusion 71 is located within the contour formed by the small diameter of the threaded structure along the axial direction of the first pipe 10. The above setting sets the outer diameter of the first limiting protrusion 71 to be not greater than the small diameter of the threaded structure on the threaded joint 20. When connecting the pipe assembly with the second pipe, the second pipe can be sleeved on the end where the first limiting protrusion 71 is located, so that the first limiting protrusion 71 does not affect the connection of the threaded joint 20 with the second pipe, and the smooth connection of the first pipe 10 with the second pipe is ensured.

[0076] The distance between the first limiting protrusion 71 and the end of the first pipe 10 close to the first limiting protrusion 71 can be set to 8mm, 10mm, 12mm or 15mm, etc.

[0077] Specifically, in the embodiment of the present scheme, the end of the threaded segment 21 away from the flange segment 22 is limited and matched with the first limiting protrusion 71, the outer diameter of the flange segment 22 is greater than that of the threaded segment 21, the threaded segment 21 is used for being threaded in the second pipe and being screwed with the second pipe, and the end of the flange segment 22 away from the threaded segment 21 is limited and matched with the second limiting protrusion 72. The flange segment 22 can have a larger contact area with the second limiting protrusion 72, and the connection stability of the threaded joint 20 with the first pipe 10 is improved.

[0078] The embodiment of the utility model further provides a heat exchanger, the heat exchanger includes heat exchanger core body and the connecting pipe subassembly of above -mentioned embodiment, the heat exchanger core body has heat exchange passage, and the first connecting pipe 10 of connecting pipe subassembly with the end of heat exchange passage intercommunication.

[0079] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0080] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the utility model unless otherwise specifically stated. At the same time, it should be understood that the sizes of various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The technology, methods and equipment known to those skilled in the related art may not be discussed in detail, but under appropriate circumstances, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0081] In the description of the utility model, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model; The orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0082] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Well, the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0083] In addition, it needs to be explained that the use of "first", "second" and the like words to limit the parts, only for the convenience of the corresponding parts for the distinction, such as no other declaration, the above words have no special meaning, therefore can not be understood as the restriction of the scope of protection of the utility model.

[0084] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spout assembly, characterized by, The adapter assembly comprises: a first adapter pipe (10); a threaded joint (20) detachably sleeved on the first adapter pipe (10), the threaded joint (20) comprising a plurality of split segments (30) arranged in split, each of the split segments (30) having a thread structure on an outer surface thereof, the plurality of split segments (30) being sequentially connected in a circumferential direction of the first adapter pipe (10), and the thread structures of the plurality of split segments (30) after being enclosed forming a continuous thread structure for thread connection with an external system pipeline.

2. The spool assembly of claim 1, wherein, The threaded joint (20) further comprises: an insertion structure arranged between two adjacent split segments (30) and inserted and fitted by the two adjacent split segments (30).

3. The spool assembly of claim 2, wherein, The insertion structure comprises an insertion protrusion and an insertion recess, in the two adjacent split segments (30), the insertion protrusion is arranged on one of the split segments (30) and protrudes in the circumferential direction of the threaded joint (20) from the corresponding split segment (30), and the insertion recess is arranged on an end surface of the other split segment (30) facing the insertion protrusion, and the insertion protrusion and the insertion recess are inserted and fitted.

4. The spool assembly of claim 3, wherein, The split segment (30) comprises a main body portion (31) and a flange portion (32) connected to each other, the thread structure is arranged on an outer surface of the main body portion (31), and the flange portion (32) protrudes outwardly from the main body portion (31) in the radial direction of the threaded joint (20); the insertion structure is arranged between the flange portions (32) of the two adjacent split segments (30); and / or the insertion structure is arranged between the main body portions (31) of the two adjacent split segments (30).

5. The spool assembly of claim 4, wherein, The insertion structure comprises a first insertion structure (40) arranged between the flange portions (32) of the two adjacent split segments (30), the first insertion structure (40) comprising a first insertion protrusion (41) and a first insertion recess (42), in the two adjacent split segments (30), the first insertion protrusion (41) is arranged on the flange portion (32) of one of the split segments (30) and protrudes in the circumferential direction of the threaded joint (20) from the corresponding split segment (30), and the first insertion recess (42) is arranged on an end of the flange portion (32) of the other split segment (30) facing the first insertion protrusion (41), and the first insertion protrusion (41) and the first insertion recess (42) are inserted and fitted.

6. The spool assembly of claim 5, wherein, The threaded joint (20) further comprises: a fastener (50), the first insertion protrusion (41) and the first insertion recess (42) being detachably connected by the fastener (50).

7. The spool assembly of claim 4, wherein, The plug structure includes a second plug structure (60) arranged between the body portions (31) of two adjacent segments (30), the second plug structure (60) includes a second plug convex portion (61) and a second plug concave portion (62), in two adjacent segments (30), the second plug convex portion (61) is arranged on the end face of the body portion (31) of one of the segments (30) and protrudes along the circumference of the threaded joint (20) to the corresponding body portion (31), the second plug concave portion (62) is arranged on the end face of the body portion (31) of the other segment (30) facing the second plug convex portion (61), and the second plug convex portion (61) and the second plug concave portion (62) are plug-fitted.

8. The spool assembly of claim 7, wherein, Along the radial direction of the threaded joint (20), the second plug concave portion (62) penetrates through the corresponding segment (30), the thickness of the segment (30) and the thickness of the corresponding second plug convex portion (61) are equal, and the thread structure of the outer surface of the segment (30) extends to the outer surface of the corresponding second plug convex portion (61).

9. The spool assembly of any one of claims 1-8, wherein, The adapter assembly includes: A first limiting convex portion (71) arranged on the outer surface of the first adapter (10); A second limiting convex portion (72) arranged on the outer surface of the first adapter (10), the second limiting convex portion (72) and the first limiting convex portion (71) are spaced apart along the axial direction of the first adapter (10), the threaded joint (20) is located between the first limiting convex portion (71) and the second limiting convex portion (72), and the first limiting convex portion (71) and the second limiting convex portion (72) are respectively limited and matched with both ends of the axial direction of the threaded joint (20).

10. The spool assembly of claim 9, wherein, The adapter assembly further includes: A first sealing member sleeved on the first adapter (10) and located between the first limiting convex portion (71) and the threaded joint (20), one end of the threaded joint (20) close to the first sealing member is tightly matched with the first limiting convex portion (71); and / or, A second sealing member sleeved on the first adapter (10) and located between the second limiting convex portion (72) and the threaded joint (20), one end of the threaded joint (20) close to the second sealing member is tightly matched with the second limiting convex portion (72).

11. The spool assembly of claim 10, wherein, Along the axial direction of the first adapter (10), the distance between the mutually close end faces of the first limiting convex portion (71) and the second limiting convex portion (72), and the difference between the distances between the two end faces of the threaded joint (20) is 2mm to 6mm.

12. The spool assembly of claim 9, wherein, One end of the threaded joint (20) close to the first limiting convex portion (71) is used for threading in the second adapter and threadedly matched with the second adapter, and along the axial direction of the first adapter (10), the projection of the first limiting convex portion (71) is located within the contour formed by the small diameter of the threaded structure.

13. The spool assembly of claim 9, wherein, The threaded joint (20) is arranged to be threaded into a second pipe and threadedly connected with the second pipe, and the first limiting protrusion (71) is spaced apart from an end of the first pipe (10) close to the first limiting protrusion (71) by 8-15 mm.

14. The spool assembly of claim 9, wherein, The threaded joint (20) comprises a threaded section (21) and a flange section (22) connected in sequence along the axial direction, the outer surface of the threaded section (21) has the threaded structure, an end of the threaded section (21) away from the flange section (22) is limited by the first limiting protrusion (71), the outer diameter of the flange section (22) is greater than that of the threaded section (21), the threaded section (21) is arranged to be threaded into a second pipe and threadedly connected with the second pipe, and an end of the flange section (22) away from the threaded section (21) is limited by the second limiting protrusion (72).

15. A heat exchanger, characterized by The heat exchanger core has a heat exchange channel. The pipe assembly of any one of claims 1-14, wherein the first pipe (10) of the pipe assembly is in communication with an end of the heat exchange channel. ​

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