Flow adjusting pipe joint and vehicle cooling test system

Abstract

The embodiment of the utility model relates to the technical field of mechanical connecting pieces, and discloses a flow adjusting pipe joint and a vehicle cooling test system. The flow adjusting pipe joint comprises a first joint body provided with a connecting part, and the outer surface of the connecting part is provided with one of a plurality of clamping grooves or clamping teeth arranged at intervals in the axial direction of the connecting part; the second connector body is provided with an inserting part and a sleeving part arranged outside the inserting part in a surrounding mode, and the inner surface of the sleeving part is provided with the other one of a plurality of clamping grooves or clamping teeth arranged at intervals in the axial direction of the sleeving part; under the condition that the first connector body and the second connector body are connected, the inserting part is inserted into the connecting part, meanwhile, the connecting part is sleeved with the sleeving part, one clamping groove is connected with one clamping tooth in a clamped mode, and the size of a circulation channel between the first connector body and the second connector body is adjusted by changing the clamping positions of the clamping grooves and the clamping teeth. According to the flow regulating pipe joint provided by the invention, the test time is effectively saved, and the labor cost and the material resource cost are reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of vehicle testing technology, and in particular to a flow regulating pipe joint and a vehicle cooling test system. Background Art

[0002] In the early stage of automobile development, it is necessary to constantly change the flow rate of coolant in the pipeline to conduct tests to verify the cooling effect. Currently, the flow rate of coolant in the pipeline is changed by constantly replacing the throttle valve in the pipeline. Every time the throttle valve is replaced, the coolant needs to be refilled, and after refilling the coolant, the air in the pipeline needs to be removed again, which increases manpower and material costs. Utility Model Content

[0003] In view of this, an embodiment of the present application provides a flow regulating pipe joint and a vehicle cooling test system to solve the problem of constantly replacing the throttle valve to adjust the coolant flow in the pipeline when performing a cooling test.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a flow regulating pipe joint, comprising:

[0006] The first joint body is provided with a connecting portion, and the outer surface of the connecting portion is provided with one of a plurality of clamping grooves or clamping teeth arranged at intervals along the axial direction thereof;

[0007] The second joint body is provided with an inserting portion and a sleeve portion surrounding the inserting portion, and the inner surface of the sleeve portion is provided with a plurality of slots or teeth arranged at intervals along the axial direction thereof;

[0008] When the first connector body and the second connector body are connected, the plug-in portion is inserted into the connecting portion, and the sleeve portion is sleeved outside the connecting portion and one of the slots is engaged with one of the teeth. By changing the engagement position of the slots and the teeth, the size of the flow channel between the first connector body and the second connector body can be adjusted.

[0009] The flow regulating pipe joint provided in the embodiment of the present application has a plurality of grooves on the outer surface of the connecting part on the first joint body, a sleeve part is provided on the periphery of the plug-in part on the second joint body, and a plurality of teeth matching the plurality of grooves are provided on the inner surface of the sleeve part. The grooves and the teeth are mutually engaged and matched, so that the first joint body and the second joint body are engaged together, thereby improving the connection efficiency between the first joint body and the second joint body.

[0010] When the first joint body and the second joint body are connected, the plug-in part is inserted into the connecting part, and a seal is formed between the plug-in part and the connecting part, which effectively prevents the coolant from leaking from the circulation channel and ensures the stability of the pressure in the coolant pipeline. In addition, by changing the matching position of the slot and the tooth, the first joint body and the second joint body are brought closer to each other to reduce the circulation channel between the first joint body and the second joint body, or the first joint body and the second joint body are moved away from each other to increase the circulation channel between the first joint body and the second joint body, thereby changing the flow rate of the coolant flowing through the circulation channel; avoiding frequent replacement of the throttle valve to adjust the coolant flow in the pipeline during the cooling test, effectively reducing labor costs and material costs, and effectively saving test time.

[0011] In a possible implementation of the present application, the sleeve portions are arranged at intervals along the outer circumference of the plug-in portion, and the gap between the plug-in portion and the sleeve portion is adapted to the wall thickness of the connecting portion.

[0012] In a possible implementation of the present application, the connecting portion is provided with a cavity, the plug-in portion is inserted into the cavity and sealedly connected to the side wall of the cavity, and the flow channel is formed between the end faces opposite to the plug-in portion and the connecting portion.

[0013] In a possible implementation of the present application, a sealing ring is provided on the circumferential side of the bottom of the plug-in portion, and the sealing ring is sealed and connected to the side wall of the cavity.

[0014] In a possible implementation of the present application, the first joint body is further provided with a first seat body and a first interface provided on one side of the first seat body, the connecting portion is provided on the other side opposite to the first seat body, and the first interface is communicated with the circulation channel.

[0015] In a possible implementation of the present application, the second joint body is further provided with a second seat body and a second interface provided on one side of the second seat body, the plug-in portion and the sleeve portion are provided on the other side of the second seat body, and the second interface is connected to the circulation channel.

[0016] In a possible implementation of the present application, the number of the first interfaces is two, and the two first interfaces are spaced apart along the length direction of the first seat body. The connecting portion includes arc-shaped tube walls corresponding to the two first interfaces one by one and two oppositely arranged straight tube walls for connecting the two arc-shaped tube walls.

[0017] In a possible implementation of the present application, the number of the second interfaces is two, and the two second interfaces are spaced apart along the length direction of the second seat body, and the plug-in portion includes two annular pipe segments and two oppositely arranged straight pipe segments for connecting the two annular pipe segments, the bottom surfaces of the two straight pipe segments are closed, and the flow channel is formed between the bottom surfaces of the two straight pipe segments and the bottom surfaces of the two straight pipe walls;

[0018] The shape of the sleeve portion is matched with the shape of the plug portion.

[0019] In a possible implementation of the present application, two of the first interfaces extend out of the first base body, and two of the second interfaces extend out of the second base body. The two of the first interfaces are arranged in a one-to-one correspondence with the two of the second interfaces and are connected.

[0020] In a second aspect, an embodiment of the present application provides a vehicle cooling test system, comprising:

[0021] coolant pipe;

[0022] The flow regulating pipe joint is connected to the coolant pipe.

[0023] The vehicle cooling test system provided in the embodiment of the present application uses a flow regulating pipe joint in the coolant pipeline to adjust the coolant flow in the pipeline. When performing a cooling test, there is no need to frequently replace the throttle valve, which effectively reduces labor costs and material costs and effectively saves test time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the main structure of a flow regulating pipe joint provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the top view of the flow regulating pipe joint provided in an embodiment of the present application;

[0026] Figure 3 for Figure 2 A schematic diagram of a cross-sectional structure of a flow regulating pipe joint in a first state along the AA direction shown in FIG.

[0027] Figure 4 for Figure 2 A schematic diagram of a cross-sectional structure of the flow regulating pipe joint in the second state along the AA direction shown in FIG.

[0028] Figure 5 for Figure 4 A partial enlarged view of the flow regulating pipe joint shown in ;

[0029] Figure 6A schematic diagram of a top view of the structure of a first joint body in a flow regulating pipe joint provided in an embodiment of the present application;

[0030] Figure 7 for Figure 6 The schematic diagram of the cross-sectional structure of the flow regulating pipe joint along the BB direction shown in FIG.

[0031] Figure 8 A schematic diagram of the top structure of a second joint body in a flow regulating pipe joint provided in an embodiment of the present application;

[0032] Fig. 9 for Figure 8 The cross-sectional structure diagram of the flow regulating pipe joint along the CC direction shown in FIG.

[0033] Reference numerals:

[0034] 10. First joint body; 100. First seat body; 110. Connecting part; 120. First interface; 130. Cavity; 20. Second joint body; 200. Second seat body; 210. Socket part; 220. Second interface; 230. Inserting part; 240. Sealing ring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0036] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0037] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0038] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0039] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0040] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0041] Combine the following Figures 1 to 9 , describing an embodiment of the present application.

[0042] like Figures 1 to 5 As shown, a flow regulating pipe joint provided in an embodiment of the present application includes: a first joint body 10, provided with a connecting portion 110, the outer surface of the connecting portion 110 is provided with one of a plurality of grooves or teeth arranged at intervals along its axial direction; a second joint body 20, provided with a plug-in portion 230 and a sleeve portion 210 arranged outside the plug-in portion 230, the inner surface of the sleeve portion 210 is provided with another of a plurality of grooves or teeth arranged at intervals along its axial direction; when the first joint body 10 and the second joint body 20 are connected, the plug-in portion 230 is inserted into the connecting portion 110, and at the same time, the sleeve portion 210 is sleeved outside the connecting portion 110 and one of the grooves is engaged with one of the teeth, and the size of the flow channel between the first joint body 10 and the second joint body 20 is adjusted by changing the engaging position of the groove and the tooth.

[0043] The flow regulating pipe joint provided in the embodiment of the present application has a plurality of slots arranged on the outer surface of the connecting portion 110 on the first joint body 10, a sleeve portion 210 is arranged on the periphery of the plug-in portion 230 on the second joint body 20, and a plurality of teeth matching the plurality of slots are arranged on the inner surface of the sleeve portion 210. The first joint body 10 and the second joint body 20 are snap-fitted together by the mutual snap-fitting and matching of the slots and the teeth, thereby improving the connection efficiency between the first joint body 10 and the second joint body 20.

[0044] When the first joint body 10 and the second joint body 20 are connected, the plug-in portion 230 is inserted into the connecting portion 110, and a seal is formed between the plug-in portion 230 and the connecting portion 110, which effectively prevents the coolant from leaking from the circulation channel and ensures the stability of the pressure in the coolant pipeline. In addition, by changing the matching position of the slot and the tooth, the first joint body 10 and the second joint body 20 are brought closer to each other to reduce the circulation channel between the first joint body 10 and the second joint body 20, or the first joint body 10 and the second joint body 20 are moved away from each other to increase the circulation channel between the first joint body 10 and the second joint body 20, thereby changing the flow rate of the coolant flowing through the circulation channel; avoiding frequent replacement of the throttle valve to adjust the coolant flow in the pipeline during the cooling test, effectively reducing labor costs and material costs, and effectively saving test time.

[0045] In a specific embodiment, the first connector body 10 is integrally provided with the connecting portion 110, and the materials of the first connector body 10 and the connecting portion 110 can be plastic, and the first connector body 10 and the connecting portion 110 are integrally provided by injection molding. Similarly, the second connector body 20 is integrally provided with the plug-in portion 230 and the sleeve portion 210 surrounding the plug-in portion 230 by injection molding. The outer surface of the connecting portion 110 on the first connector body 10 is provided with a plurality of slots arranged at intervals along its axial direction, and matchingly, the inner surface of the sleeve portion 210 on the second connector body 20 is provided with latch teeth arranged at intervals along its axial direction. The latch grooves on the connecting portion 110 and the latch teeth on the sleeve portion 210 cooperate with each other to connect the first connector body 10 and the second connector body 20 together. When the first connector body 10 and the second connector body 20 are connected, the size of the flow channel between the first connector body 10 and the second connector body 20 can be adjusted by changing the latching position of the latch grooves and the latch teeth. When the first joint body 10 and the second joint body 20 are close to each other, the flow channel between the first joint body 10 and the second joint body 20 is gradually reduced; when the first joint body 10 and the second joint body 20 are away from each other, the flow channel between the first joint body 10 and the second joint body 20 is gradually enlarged. The size of the flow channel between the first joint body 10 and the second joint body 20 can be adjusted according to actual use requirements.

[0046] In other embodiments, the connecting portion 110 is detachably disposed on the first connector body 10, and the plug-in portion 230 and the sleeve portion 210 disposed outside the plug-in portion 230 are detachably disposed on the second connector body 20. The connection method between the first connector body 10 and the connecting portion 110, and the connection method between the second connector body 20 and the plug-in portion 230 and the sleeve portion 210 can be selected according to actual use requirements and are not specifically limited.

[0047] According to one embodiment of the present application, Figures 1 to 5 As shown, the sleeve portion 210 is arranged at intervals along the outer periphery of the plug portion 230, and the gap between the plug portion 230 and the sleeve portion 210 is adapted to the wall thickness of the connecting portion 110. In this embodiment, by arranging the sleeve portion 210 at intervals along the outer periphery of the plug portion 230, it is convenient to adjust the distance between the first joint body 10 and the second joint body 20; the gap between the plug portion 230 and the sleeve portion 210 is adapted to the wall thickness of the connecting portion 110, so that the first joint body 10 and the second joint body 20 can be closely connected together, ensuring better connection stability, which helps to improve the strength and reliability of the overall structure.

[0048] According to one embodiment of the present application, Figure 6 to Figure 7 As shown, the connection part 110 is provided with a cavity 130, the plug part 230 is inserted in the cavity 130 and is sealed and connected with the side wall of the cavity 130, and a circulation channel is formed between the plug part 230 and the end face opposite to the connection part 110. In this embodiment, the cavity 130 provided on the connection part 110 provides a space for the plug part 230, so that the plug part 230 can be accommodated inside the cavity 130; when the plug part 230 is inserted in the cavity 130, the plug part 230 is sealed and connected with the side wall of the cavity 130, which can effectively prevent the leakage of the coolant; when the first joint body 10 and the second joint body 20 are engaged with each other, a circulation channel is formed between the plug part 230 and the end face opposite to the connection part 110 for the flow of the coolant, and when the coolant is transmitted in the circulation channel, the plug part 230 is sealed and connected with the side wall of the cavity 130, which effectively prevents the leakage of the coolant and ensures the stability of the pressure in the coolant pipeline.

[0049] According to one embodiment of the present application, Figures 8 to 9 As shown, a sealing ring 240 is provided on the bottom circumference of the plug-in portion 230, and the sealing ring 240 is sealed and connected to the side wall of the cavity 130. In this embodiment, an inward groove is provided on the bottom circumference of the plug-in portion 230, and the sealing ring 240 is clamped in the groove to ensure that the sealing ring 240 is in the correct position, thereby improving the sealing performance. When the plug-in portion 230 is inserted into the cavity 130 of the connecting portion 110, the sealing ring 240 is tightly attached to the side wall of the cavity 130, preventing the coolant from leaking during the cooling test, while ensuring the pressure stability in the pipeline.

[0050] According to one embodiment of the present application, the first joint body 10 is further provided with a first seat body 100 and a first interface 120 provided on one side of the first seat body 100, the connecting portion 110 is provided on the other side of the first seat body 100, and the first interface 120 is communicated with the circulation channel. In this embodiment, the connecting portion 110 and the first interface 120 are provided on the first seat body 100, which can increase the stability of the overall structure and improve the integrity and coordination of the first joint body 10. The first interface 120 can be used to access the coolant pipeline. Since the first interface 120 is communicated with the circulation channel, the coolant can flow in from the first interface 120 and flow through the circulation channel communicated with the first interface 120; or the coolant can flow through the circulation channel, enter the first interface 120 and flow out from the first interface 120 to enter the coolant pipeline.

[0051] According to one embodiment of the present application, the second connector body 20 is further provided with a second base body 200 and a second interface 220 provided on one side of the second base body 200, the plug-in portion 230 and the sleeve portion 210 are provided on the other side of the second base body 200, and the second interface 220 is communicated with the circulation channel. In this embodiment, the plug-in portion 230, the sleeve portion 210 and the second interface 220 are provided on the second base body 200, which can increase the stability of the overall structure and improve the integrity and coordination of the second connector body 20. The second interface 220 can also be used to access the coolant pipeline. Since the second interface 220 is communicated with the circulation channel, the coolant can flow in from the second interface 220 and flow through the circulation channel communicated with the second interface 220; or the coolant can flow through the circulation channel, enter the second interface 220 and flow out from the second interface 220 to enter the coolant pipeline. When the first joint body 10 and the second joint body 20 are engaged with each other and the first interface 120 and the second interface 220 are both connected to the coolant pipeline, if the coolant flows in from the first interface 120, after the coolant flows into the first interface 120, it flows into the circulation channel connected to the first interface 120; the coolant then flows from the circulation channel to the second interface 220 connected to the circulation channel, and flows out from the second interface 220 and enters the coolant pipeline connected to the second interface 220.

[0052] In other embodiments, the coolant may flow in from the second interface 220, pass through the circulation channel, and then flow out from the first interface 120. The flow direction of the coolant in the pipeline may be determined according to actual conditions and is not specifically limited.

[0053] According to one embodiment of the present application, Figure 1As shown, there are two first interfaces 120, and the two first interfaces 120 are arranged at intervals along the length direction of the first base body 100, and the connecting portion 110 includes an arc-shaped tube wall corresponding to the two first interfaces 120 and two oppositely arranged straight tube walls for connecting the two arc-shaped tube walls. In this embodiment, two first interfaces 120 are arranged at intervals along the length direction of the first base body 100, and the two first interfaces 120 can be connected to the coolant pipeline respectively, so that more cooling components can be connected, and the coolant flow at different interfaces can be adjusted according to actual conditions to improve the overall cooling efficiency. A cavity 130 for accommodating the plug-in portion 230 is formed between the arc-shaped tube wall corresponding one-to-one to the two first interfaces 120 and the two oppositely arranged straight tube walls; by arranging the arc-shaped tube walls corresponding one-to-one to the two first interfaces 120, it is possible to better match the two first interfaces 120, thereby ensuring the smooth flow of the coolant in the pipeline; the two oppositely arranged straight tube walls serve to connect the two arc-shaped tube walls, so that the entire connecting portion 110 forms a complete structure, which helps to improve the stability of the first joint body 10.

[0054] According to one embodiment of the present application, Figure 1 As shown, there are two second interfaces 220, and the two second interfaces 220 are spaced apart along the length direction of the second seat body 200. The plug-in portion 230 includes two annular pipe segments and two oppositely arranged straight pipe segments for connecting the two annular pipe segments. The bottom surfaces of the two straight pipe segments are closed, and a flow channel is formed between the bottom surfaces of the two straight pipe segments and the bottom surfaces of the two straight pipe walls. The shape of the sleeve portion 210 is adapted to the shape of the plug-in portion 230.

[0055] In this embodiment, two second interfaces 220 are arranged at intervals in the length direction of the second seat body 200, and the two second interfaces 220 can be connected to the coolant pipeline respectively, so that more cooling parts can be connected and the coolant flow at different interfaces can be adjusted according to actual conditions to improve the overall cooling efficiency. Two straight pipe sections arranged opposite to each other connect the two annular pipe sections so that the plug-in part 230 forms a whole. The bottom surfaces of the two straight pipe sections are closed and arranged so that when the first joint body 10 and the second joint body 20 are engaged with each other, the size of the flow channel can be changed when the distance between the bottom surfaces of the two straight pipe sections and the bottom surfaces of the two straight pipe walls is adjusted to achieve the adjustment of the coolant flow; the shape of the sleeve part 210 is adapted to the shape of the plug-in part 230, and can fully accommodate the plug-in part 230 and be tightly combined with the plug-in part 230. The sealing ring 240 is arranged on the surrounding side of the two straight pipe sections and the two annular pipe sections to ensure the tightness and stability of the connection.

[0056] According to one embodiment of the present application, Figure 1As shown, two first interfaces 120 extend out of the first seat body 100, and two second interfaces 220 extend out of the second seat body 200, and the two first interfaces 120 and the two second interfaces 220 are arranged one-to-one and connected. In this embodiment, the two first interfaces 120 extend out of the first seat body 100 to connect the coolant pipeline, and the two second interfaces 220 extend out of the second seat body 200 to connect the coolant pipeline. When the first joint body 10 and the second joint body 20 are engaged with each other, the two first interfaces 120 and the two second interfaces 220 are arranged one-to-one and connected. It should be noted that the two first interfaces 120 and the two second interfaces 220 can be liquid outlets or liquid inlets; in the coolant pipeline, the flow direction of the coolant is determined according to the pressure of the cooling part connected to the interface. When the pressure of the cooling part connected to the interface is relatively large, the interface is a liquid inlet; when the pressure of the cooling part connected to the interface is relatively small, the interface is a liquid outlet. Whether the interface is a liquid outlet or a liquid inlet can be determined according to actual conditions and is not specifically limited.

[0057] like Figure 3 , Figure 4 As shown, in an actual cooling test, if the first interface 120 is a liquid inlet, and another first interface 120 and another two second interfaces 220 are liquid outlets, the coolant enters from the first interface 120, and the coolant can flow out from the second interface 220 connected to the first interface 120, or flow through the circulation channel and then flow out from another first interface 120 and another second interface 220. If the coolant flow at the second interface 220 connected to the liquid inlet is reduced, the engagement position of the clamping groove and the clamping teeth can be changed, and the first joint body 10 can be moved away from the second joint body 20 to increase the circulation channel L2, so that more coolant flows through the circulation channel L2, thereby increasing the flow of coolant flowing through another first interface 120 and another second interface 220, so that the coolant flow at the second interface 220 connected to the liquid inlet is reduced. Similarly, if the coolant flow at the second interface 220 connected to the liquid inlet is increased, the first joint body 10 is moved closer to the second joint body 20 to reduce the circulation channel L1, and the coolant flowing through the circulation channel L1 is reduced, thereby reducing the flow of the coolant flowing through the other first interface 120 and the other second interface 220, thereby increasing the coolant flow at the second interface 220 connected to the liquid inlet. It should be noted that in the actual test process, the interface can be a liquid inlet or a liquid outlet, the liquid inlet can be 1, 2, or 3, and the liquid outlet can also be 1, 2, or 3, all of which are determined according to actual conditions and are not specifically limited.

[0058] In a second aspect, an embodiment of the present application provides a vehicle cooling test system, including: a coolant pipe; and the above-mentioned flow regulating pipe joint connected to the coolant pipe. In this embodiment, by using the flow regulating pipe joint in the coolant pipe to adjust the coolant flow in the pipe, when performing a cooling test, there is no need to frequently replace the throttle valve, which effectively reduces labor costs and material costs, and effectively saves test time.

[0059] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A flow regulating pipe joint, characterized in that: include: A first joint body (10) is provided with a connecting portion (110), wherein the outer surface of the connecting portion (110) is provided with one of a plurality of slots or teeth spaced apart along the axial direction thereof; The second joint body (20) is provided with an inserting portion (230) and a sleeve portion (210) arranged outside the inserting portion (230), and the inner surface of the sleeve portion (210) is provided with a plurality of slots or teeth arranged at intervals along the axial direction thereof; When the first connector body (10) and the second connector body (20) are connected, the plug-in portion (230) is inserted into the connecting portion (110), and the sleeve portion (210) is sleeved outside the connecting portion (110) and one of the slots is engaged with one of the teeth. By changing the engagement position of the slots and the teeth, the size of the flow channel between the first connector body (10) and the second connector body (20) can be adjusted.

2. The flow regulating pipe joint according to claim 1, characterized in that: The sleeve portions (210) are arranged at intervals along the outer circumference of the plug-in portion (230), and the gap between the plug-in portion (230) and the sleeve portion (210) is adapted to the wall thickness of the connecting portion (110).

3. The flow regulating pipe joint according to claim 1, characterized in that: The connecting portion (110) is provided with a cavity (130), the plug-in portion (230) is inserted into the cavity (130) and is sealedly connected to the side wall of the cavity (130), and the flow channel is formed between the end surfaces opposite to the plug-in portion (230) and the connecting portion (110).

4. The flow regulating pipe joint according to claim 3, characterized in that: A sealing ring (240) is provided on the peripheral side of the bottom of the plug-in portion (230), and the sealing ring (240) is sealedly connected to the side wall of the cavity (130).

5. The flow regulating pipe joint according to any one of claims 1 to 4, characterized in that: The first joint body (10) is further provided with a first seat body (100) and a first interface (120) provided on one side of the first seat body (100); the connecting portion (110) is provided on the other side opposite to the first seat body (100); and the first interface (120) is communicated with the circulation channel.

6. The flow regulating pipe joint according to claim 5, characterized in that: The second joint body (20) is further provided with a second seat body (200) and a second interface (220) provided on one side of the second seat body (200), the plug-in portion (230) and the sleeve portion (210) are provided on the other side opposite to the second seat body (200), and the second interface (220) is communicated with the circulation channel.

7. The flow regulating pipe joint according to claim 6, characterized in that: The number of the first interfaces (120) is two, and the two first interfaces (120) are arranged at intervals along the length direction of the first seat body (100). The connecting portion (110) comprises arc-shaped tube walls corresponding to the two first interfaces (120) one by one and two oppositely arranged straight tube walls for connecting the two arc-shaped tube walls.

8. The flow regulating pipe joint according to claim 7, characterized in that: The number of the second interfaces (220) is two, and the two second interfaces (220) are arranged at intervals along the length direction of the second seat body (200); the plug-in portion (230) comprises two annular pipe sections and two oppositely arranged straight pipe sections for connecting the two annular pipe sections; the bottom surfaces of the two straight pipe sections are closed, and the flow channel is formed between the bottom surfaces of the two straight pipe sections and the bottom surfaces of the two straight pipe walls; The shape of the sleeve portion (210) matches the shape of the plug portion (230).

9. The flow regulating pipe joint according to claim 7, characterized in that: The two first interfaces (120) extend out of the first base (100), and the two second interfaces (220) extend out of the second base (200). The two first interfaces (120) and the two second interfaces (220) are arranged in one-to-one correspondence and are connected.

10. A vehicle cooling test system, characterized in that: include: coolant pipe; The flow regulating pipe joint according to any one of claims 1 to 9, connected to the coolant pipe.

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