Pipeline connector

Abstract

The utility model discloses a pipeline connector. The pipeline connector comprises a first valve assembly and a second valve assembly. The first valve assembly comprises a first valve shell, a sliding sleeve and a first valve plug. The sliding sleeve is provided with a first matching section. The second valve assembly includes a second valve housing and a second valve plug. The second valve shell comprises a second matching section, and the inner diameter of the second matching section is larger than that of the first matching section. The diameter of the second valve head of the second valve plug is larger than that of the first valve head of the first valve plug. After the second valve shell is inserted into the first valve shell, the first valve head abuts against the second valve head and enters the second valve shell, and the second valve shell is provided with a node position corresponding to the tail end of the second valve head. A through flow channel is defined by the starting end of the first matching section and the node position on the second valve shell, so that the pipeline connector is conducted; and the ratio of the minimum overflowing area to the maximum overflowing area of the flow channel is 0.5-1. Therefore, the coolant pipeline on the battery pack is smoothly communicated with the coolant pipeline on the vehicle body.

Description

Technical Field

[0001] This application relates to the field of pipe fitting technology, and in particular to a pipe connector. Background Technology

[0002] In vehicles, pipe connectors are widely used to meet the connection requirements of pipes. For example, in vehicles powered by battery packs, coolant pipes are located in both the vehicle body and the battery pack. Pipe connectors are used to connect the coolant pipes on the vehicle body to the coolant pipes on the battery pack to establish a coolant circulation loop and allow heat exchange between the coolant and the battery pack.

[0003] The piping connectors include, for example, a first valve assembly mounted on the vehicle body and a second valve assembly mounted on the battery pack. The first valve assembly communicates with coolant piping on the vehicle body, and the second valve assembly communicates with coolant piping on the battery pack. When the battery pack is installed on the vehicle body, the first and second valve assemblies connect, and both valve assemblies open as the battery pack moves a suitable distance toward the vehicle body, thereby establishing communication between the coolant piping on the vehicle body and the coolant piping on the battery pack. After the battery pack is removed from the vehicle body, the first and second valve assemblies separate, and the coolant piping between the vehicle body and the battery pack is disconnected.

[0004] In some vehicles, the movement distance of the battery pack toward the vehicle body is limited during battery pack installation. This may result in a shorter insertion stroke of the second valve assembly into the first valve assembly, leading to poor pipe connection and consequently, poor communication between the coolant lines on the vehicle body and the coolant lines on the battery pack. Utility Model Content

[0005] To address the aforementioned technical problems, this application proposes a pipe connector. The pipe connector includes a first body with a first valve assembly. The first valve assembly includes a first valve housing; a sliding sleeve slidably disposed within the first valve housing and having a first mating section; and a first valve plug extending through the sliding sleeve and having a first valve head. The first valve head is adapted to make sealing contact or separation from the inner surface of the first mating section. The pipe connector also includes a second body with a second valve assembly. The second valve assembly includes a second valve housing, a main tube, and a second mating section located at the end of the main tube facing the first valve assembly. The inner diameter of the second mating section is larger than the inner diameter of the first mating section, and the inner diameter of the second mating section is smaller than the inner diameter of the main tube. A second valve plug is slidably disposed within the second valve housing and has a second valve head. The second valve head is adapted to make sealing contact or separation from the inner surface of the second mating section. The radial dimension of the second valve head is larger than the radial dimension of the first valve head. The second mating section of the second valve housing is adapted to abut against the first mating section of the sliding sleeve and be inserted into the first valve housing. The first valve head abuts against the second valve head and the first valve head and the second valve head enter the second valve housing. The second valve housing has a node position corresponding to the end of the second valve head away from the first valve head. The starting end of the first mating section away from the second mating section and the node position on the second valve housing together define a through flow channel, so that the pipeline connector is conductive. The ratio of the minimum flow area to the maximum flow area of ​​the flow channel is between 0.5 and 1.

[0006] In one embodiment, the ratio of the minimum flow area to the maximum flow area of ​​the flow channel is between 0.9 and 1.

[0007] In one embodiment, a first valve head has a first end face and a second valve head has a second end face; the first end face and the second end face face face each other and are adapted to abut against each other; the size of the second end face face face is larger than the size of the first end face face face.

[0008] In one embodiment, the inner surface of the second mating section is configured as a first conical surface such that the inner diameter of the second mating section gradually decreases along a first direction from the second valve assembly to the first valve assembly; or the inner surface of the second mating section is configured as a cylindrical surface; and the shape of the circumferential surface of the second valve head matches the shape of the inner surface of the second mating section.

[0009] In one embodiment, the angle of inclination of the first conical surface relative to the first direction is between 10 and 20 degrees.

[0010] In one embodiment, a first sealing ring is provided between the inner surface of the second mating section and the circumferential surface of the second valve head, the first sealing ring being adapted to seal the gap between the inner surface of the second mating section and the circumferential surface of the second valve head.

[0011] In one embodiment, a first dovetail groove is formed on the inner surface of the second mating section and / or on the circumferential surface of the second valve head, and a first sealing ring is disposed in the first dovetail groove.

[0012] In one embodiment, a second sealing ring is provided on the circumferential outer surface of the second mating section; when the second mating section is inserted into the first valve body, the second sealing ring is adapted to seal the gap between the second mating section and the first valve body.

[0013] In one embodiment, the first mating segment has a third end face, the second mating segment has a fourth end face, and the third end face and the fourth end face face face each other; a third sealing ring is provided between the third end face and the fourth end face face, and the third sealing ring is adapted to seal the gap between the third end face and the fourth end face face face.

[0014] In one embodiment, the third sealing ring includes an annular body, a sealing lip formed on one end face of the body, and a wall portion; the sealing lip and the wall portion extend circumferentially along the body and are radially spaced to form a groove between the sealing lip and the wall portion; the sealing lip is adapted to be pressed into the groove.

[0015] In one embodiment, a fourth sealing ring is provided on the circumferential outer surface of the sliding sleeve; the fourth sealing ring is adapted to seal the gap between the sliding sleeve and the first valve body.

[0016] In one embodiment, a fifth sealing ring is provided between the circumferential surface of the first valve head and the inner surface of the first mating section, the fifth sealing ring being adapted to seal the gap between the circumferential surface of the first valve head and the inner surface of the first mating section.

[0017] In one embodiment, a second dovetail groove is formed on the circumferential surface of the first valve head and / or the inner surface of the first mating section, and a fifth sealing ring is disposed in the second dovetail groove.

[0018] In one embodiment, the inner surface of the first mating section is configured as a cylindrical surface; or the inner surface of the first mating section is configured as a second conical surface, such that the inner diameter of the first mating section gradually decreases along a first direction from the second valve assembly to the first valve assembly; the shape of the circumferential surface of the first valve head matches the shape of the inner surface of the first mating section.

[0019] In one embodiment, the inclination angle of the second conical surface relative to the first direction is between 10 and 20 degrees.

[0020] In one embodiment, the end of the first valve housing facing the second valve housing is provided with a guide structure; a second mating section of the second valve housing is adapted to be inserted into the first valve housing under the guidance of the guide structure; wherein, the first body has an end face facing the second body; the guide structure is configured to approach the end face facing the first body.

[0021] In one embodiment, the guide structure has a guide surface toward the second valve housing, the guide surface forming an angle greater than or equal to 45 degrees with a second direction from the first valve assembly toward the second valve assembly.

[0022] In one embodiment, the guide surface includes a first guide ramp extending from the end of the first valve housing; and a second guide ramp extending from the free end of the first guide ramp; wherein the first guide ramp forms a first angle greater than or equal to 45 degrees with the second direction, and the second guide ramp forms a second angle greater than the first angle with the second direction.

[0023] In one embodiment, the first included angle is between 45 degrees and 50 degrees; the second included angle is between 60 degrees and 75 degrees.

[0024] In one embodiment, the first body includes a first substrate on which two first valve assemblies are mounted; the second body includes a second substrate on which two second valve assemblies are mounted.

[0025] In one embodiment, two first mounting holes are provided on a first substrate, and two first valve assemblies are respectively installed in the two first mounting holes; a floating element is provided between each first valve housing and the corresponding first mounting hole so that each first valve assembly is adapted to be radially offset along the corresponding first mounting hole.

[0026] In one embodiment, the first valve housing is integrally formed with the first substrate, and / or the second valve housing is integrally formed with the second substrate.

[0027] In one embodiment, a second mounting hole and an assembly assembly are further provided on the first substrate; the assembly assembly includes: an outer sleeve having a first end and a second end opposite to the first end; an inner cavity formed inside the outer sleeve extending axially along the outer sleeve; an inner sleeve having an assembly channel formed inside the inner sleeve extending axially along the inner sleeve, the assembly channel being aligned with the second mounting hole; at least a portion of the inner sleeve being disposed within the inner cavity; the inner sleeve having a first end and a second end, the first end of the inner sleeve being close to the first end of the outer sleeve, and the second end of the inner sleeve being close to the second end of the outer sleeve; the first end of the inner sleeve being adapted to abut or separate from the first end of the outer sleeve; and a third spring disposed between the outer sleeve and the inner sleeve, the first end of the third spring being constrained at the first end of the outer sleeve, the second end of the third spring being constrained at the second end of the inner sleeve, and the outer sleeve being adapted to move axially relative to the inner sleeve.

[0028] In one embodiment, the outer sleeve is further configured with a guide sleeve extending from its first end into the inner cavity; the inner sleeve extends through the guide sleeve; the inner diameter of the guide sleeve gradually increases in the direction of its extension into the inner cavity.

[0029] In one embodiment, a sheath is provided at the second end of the inner sleeve; the sheath includes a protective plate extending radially outward from the second end of the inner sleeve and an outer tube extending from the protective plate toward the first end of the inner sleeve; at least a portion of the outer tube is radially spaced from the outer sleeve; and the second end of the third spring abuts against the protective plate.

[0030] In one embodiment, the first end of the inner sleeve is provided with a first flange extending radially outward, the first flange being adapted to engage or disengage with the first end of the outer sleeve.

[0031] The beneficial effects of this application are as follows: In the pipe connector of this application, the radial dimension of the first valve head is smaller than the inner diameter of the second mating section. Thus, even if the movement distance of the battery pack toward the vehicle body is limited to a short distance, causing the first valve head to only enter the second mating section of the second valve housing, the first valve head remains spaced apart from the inner surface of the second mating section, forming a channel between them. Therefore, the pipe connector conducts smoothly, and the coolant pipes on the vehicle body and the coolant pipes on the battery pack are smoothly connected. Attached Figure Description

[0032] With the aid of non-limiting examples of exemplary embodiments of this application, the present application will be further described in a detailed description following with reference to several accompanying drawings. The drawings are not drawn to scale.

[0033] Figure 1 A conduit connector according to one embodiment of this application is schematically shown.

[0034] Figure 2 and Figure 3 The connection process of the first and second bodies of the pipe connector is schematically shown.

[0035] Figure 4 A cross-sectional view of the pipe connector is shown schematically.

[0036] Figure 5a schematically shown Figure 4 An enlarged view of part I in the image.

[0037] Figure 5b The flow channel is shown schematically.

[0038] Figure 6 A cross-sectional view of the first valve assembly is shown schematically.

[0039] Figure 7 A cross-sectional view of the second valve assembly is shown schematically.

[0040] Figure 8 The third sealing ring is shown schematically.

[0041] Figure 9A schematic cross-sectional view of the third sealing ring is shown.

[0042] Figure 10 The first valve housing and guide structure are schematically shown.

[0043] Figure 11 The first substrate is shown schematically.

[0044] Figure 12 A cross-sectional view of the assembled components is shown schematically.

[0045] Figure 13 This schematically illustrates one way of using the assembly components.

[0046] Figure 14 This schematically illustrates another way of using the assembly components.

[0047] List of reference numerals

[0048] 1 Pipe connector

[0049] 11-channel

[0050] 100 First Subject

[0051] 101 First substrate 102 end face

[0052] 103 First mounting hole 104 Floating component

[0053] 105 Second mounting hole

[0054] 110 First valve assembly 111 First valve housing

[0055] 112 Sliding Sleeve 112a First Mating Section

[0056] 112d Inner surface of the first mating section; 112c Starting end of the sliding sleeve

[0057] 112b Third end face 113 Guide structure

[0058] 113a First guide slope 113b Second guide slope

[0059] 113c guide surface 115 first pipe joint

[0060] 121 First valve plug 121a First valve head

[0061] 121b First valve stem 121c First end face

[0062] 121d Circumferential surface of the first valve head; 121e End of the first valve head

[0063] 124 Second dovetail groove 125 First spring

[0064] 130 Assembly Components

[0065] 131 Outerwear

[0066] 1311 First end of the outer sleeve 1312 Second end of the outer sleeve

[0067] 1313 Inner cavity of outer sleeve; 1314 Guide sleeve

[0068] 132 inner sleeve

[0069] 1321 The first end of the inner sleeve 1322 The second end of the inner sleeve

[0070] 1323 Assembly Channel 1324 Connector

[0071] 1325 First flange 1326 Reception space

[0072] 133 Third Spring

[0073] 134 Sheath

[0074] 1341 outer tube, 1342 center hole

[0075] 1343 Protective Plate

[0076] 200 Second Subject

[0077] 201 Second substrate 203 Receiving space

[0078] 210 Second valve assembly 211 Second valve housing

[0079] 211a Second mating section; 211b Fourth end face

[0080] 211c main tube 212 second mating section inner surface

[0081] 215 Second Pipe Fitting

[0082] 221 Second valve plug 221a Second valve head

[0083] 221b Second valve stem 221c Second end face

[0084] 211d Node position 222 Circumferential surface of the second valve head

[0085] 224 First dovetail groove 225 Second spring

[0086] 301 First sealing ring; 302 Second sealing ring

[0087] 303 Third sealing ring; 304 Fourth sealing ring

[0088] 303a Body, 303b Sealing Lip

[0089] 303c wall section 303d groove

[0090] 305 Fifth Sealing Ring

[0091] A. First direction B. Second direction

[0092] X is the first direction of motion, and Y is the second direction of motion.

[0093] θ3 Inclination angle α of the first conical surface; gap angle

[0094] θ1 First included angle θ2 Second included angle Detailed Implementation

[0095] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0096] In this application, the “axial direction” of a cylindrical or annular member refers to the direction generally along the central axis of the cylindrical or annular member; the “radial direction” of a cylindrical or annular member refers to the direction generally along the radius of the cylindrical or annular member.

[0097] Figure 1 A conduit connector 1 according to one embodiment of this application is schematically shown. (As...) Figure 1 As shown, the pipe connector 1 includes a first body 100 and a second body 200 assembled with the first body 100. (Refer to...) Figure 1 and Figure 4 The first body 100 includes a first substrate 101 and two first valve assemblies 110 mounted on the first substrate 101; the second body 200 includes a second substrate 201 and two second valve assemblies 210 mounted on the second substrate 201.

[0098] When using pipe connector 1, a first body 100 is disposed on one of the vehicle body (not shown) and the battery pack (not shown), and a first valve assembly 110 is connected to a corresponding coolant line (not shown). A second body 200 is disposed on the other of the vehicle body and the battery pack, and a second valve assembly 210 is also connected to a corresponding coolant line (not shown). After the first valve assembly 110 and the corresponding second valve assembly 210 are connected together, the coolant line on the vehicle body is connected to the coolant line on the battery pack, thereby establishing a coolant circulation loop to facilitate coolant circulation and heat exchange with the battery pack. When the first valve assembly 110 and the corresponding second valve assembly 210 are separated (e.g., when replacing the battery pack), the coolant circulation loop is disconnected.

[0099] In this application, the pipeline connector 1 is described using the example of mounting the first body 100 on the vehicle body and the second body 200 on the battery pack. Furthermore, for simplicity, the following description only depicts the mating relationship between a first valve assembly 110 and a corresponding second valve assembly 210.

[0100] Reference Figure 5a and Figure 6The first valve assembly 110 mainly includes a first valve housing 111, a sliding sleeve 112, and a first valve plug 121. The sliding sleeve 112 is slidably disposed within the first valve housing 111 and has a first mating section 112a facing the second valve assembly 210. The first mating section 112a has an inner surface 112d. The first valve plug 121 extends through the sliding sleeve 112 and has a first valve head 121a. The first valve head 121a has a circumferential surface 121d and a first end face 121c facing the second body 200. In this application, the first valve head 121a refers to the portion of the first valve plug 121 adapted to engage with the first mating section 112a. For example, the first valve plug 121 also includes a first valve stem 121b, with the first valve head 121a located at the first end of the first valve stem 121b facing the first mating section 112a, and the second end of the first valve stem 121b abutting against the first valve housing 111. The first valve assembly 110 also includes a first spring 125, the two ends of which abut against the second end of the first valve stem 121b and the sliding sleeve 112, respectively. Thus, when the sliding sleeve 112 is not pushed toward the interior of the first valve housing 111, the first valve head 121a is in sealing contact with the inner surface 112d of the first mating section 112a (e.g., the circumferential surface 121d of the first valve head 121a is in sealing contact with the inner surface 112d of the first mating section 112a) and the first spring 125 is in its natural state (i.e., the first spring 125 is not compressed or stretched). When the sliding sleeve 112 is pushed toward the interior of the first valve housing 111, the sliding sleeve 112 slides toward the interior of the first valve housing 111, causing the circumferential surface 121d of the first valve head 121a to separate from the inner surface 112d of the first mating section 112a and the first spring 125 to be compressed. It should be noted that the first valve plug 121 and the first valve body 111 never shift relative to each other.

[0101] Reference Figure 5a and Figure 7The second valve assembly 210 mainly includes a second valve housing 211 and a second valve plug 221. The second valve housing 211 includes a main tube 211c and a second mating section 211a located at the end of the main tube 211c facing the first valve assembly 110. The second mating section 211a has an inner surface 212. The inner diameter of the second mating section 211a is larger than the inner diameter of the first mating section 112a, and the inner diameter of the second mating section 211a is smaller than the inner diameter of the main tube 211c. The second valve plug 221 is slidably disposed within the second valve housing 211 and has a second valve head 221a. The second valve head 221a has a circumferential surface 222 and a second end face 221c facing the first body 100. The first end face 121c and the second end face 221c face each other. In this application, the second valve head 221a refers to the portion of the second valve plug 221 adapted to engage with the second mating section 211a. For example, the second valve plug 221 includes a second valve stem 221b, and a second valve head 221a is located at the first end of the second valve stem 221b facing the second mating section 211a. The second valve assembly 210 also includes a second spring 225, the two ends of which abut against the second valve plug 221 (or, the second end of the second valve stem 221b) and the second valve housing 211, respectively. Thus, when the second valve plug 221 is not subjected to a thrust toward the interior of the second valve housing 211, the second valve head 221a is in sealing contact with the inner surface 212 of the second mating section 211a (e.g., the circumferential surface 222 of the second valve head 221a is in sealing contact with the inner surface 212 of the second mating section 211a) and the second spring 225 is in its natural state (i.e., the second spring 225 is not compressed or stretched). When the second valve plug 221 is pushed into the second valve housing 211, the second valve plug 221 slides into the second valve housing 211, causing the circumferential surface 222 of the second valve head 221a to separate from the inner surface 212 of the second mating section 211a and the second spring 225 to be compressed.

[0102] The radial dimension of the second valve head 221a is larger than that of the first valve head 121a, and the dimension of the second end face 221c is larger than that of the first end face 121c. In this application, the term "radial" refers to a direction substantially perpendicular to the axial direction of the first or second valve housing. For example, the cross-section and end face of both the first valve head 121a and the second valve head 221a are circular, and the diameter of the second valve head 221a is substantially equal to the inner diameter of the second mating section 211a and smaller than the inner diameter of the main body tube 211c, while the diameter of the first valve head 121 is smaller than the inner diameter of the second mating section 211a and smaller than the inner diameter of the main body tube 211c. The diameter of the second end face 221c is larger than the diameter of the first end face 121c.

[0103] When installing the battery pack onto the vehicle body, refer to... Figure 5a and Figure 5bThe second mating section 211a of the second valve housing 211 abuts against the first mating section 112a of the sliding sleeve 112 and is inserted into the first valve housing 111. Simultaneously, the first end face 121c of the first valve head 121a abuts against the second end face 221c of the second valve head 221a. Then, the second valve housing 211 is further inserted into the first valve housing 111, and the first valve head 121a correspondingly enters the main tube 211c of the second valve housing 211, and the second valve head 221a also correspondingly enters the main tube 211c of the second valve housing 211 (both the first spring 125 and the second spring 225 are compressed, and the sliding sleeve 112 slides into the first valve housing 121). Since the diameters of the first valve head 121a and the second valve head 221a are both smaller than the inner diameter of the main tube 211c, both the first valve head 121a and the second valve head 221a are spaced apart from the inner surface of the main tube 211c. At this time, as... Figure 5b As shown, a node position 211d is defined on the second valve housing 211, corresponding to the end 121e of the second valve head 221a that is furthest from the first valve head 121a. Thus, the starting end 112c of the first mating section 112a that is furthest from the second mating section 211a, and the node position 211d of the second valve housing 211 together define a through flow channel 11 (i.e., the pipe connector 1 is smoothly connected), allowing smooth communication between the coolant pipes on the vehicle body and the coolant pipes on the battery pack. It should be noted that the node position 211d is a virtual position on the second valve housing 211. The position of the node position 211d will differ each time the second valve head 221a enters the second valve housing 211.

[0104] In some cases, where the insertion distance of the second valve housing 211 into the first valve housing 111 is short—for example, the first valve head 121a may only enter the second mating section 211a of the second valve housing 211—this is where, for example,... Figure 5a As shown, since the diameter of the first valve head 121a is smaller than the inner diameter of the second mating section 211a, and the diameter of the second end face 221c is larger than the diameter of the first end face 121c, the first valve head 121a is still spaced apart from the inner surface 212 of the second mating section 211a. The starting end 112c of the first mating section 112a away from the second mating section 211a and the node position 211d of the second valve housing 211 still jointly define the through flow channel 11 (i.e., the pipe connector 1 is smoothly connected), so that the coolant pipes on the vehicle body and the coolant pipes on the battery pack are smoothly connected.

[0105] In one embodiment, the ratio of the minimum flow area to the maximum flow area of ​​the flow channel 11 is between 0.5 and 1. This ensures relatively stable pressure and high flow stability of the coolant as it flows through the flow channel 11, thereby achieving smooth flow of the coolant within the coolant circulation loop. Preferably, the ratio of the minimum flow area to the maximum flow area of ​​the flow channel 11 can be between 0.9 and 1.

[0106] After the second valve housing 211 is pulled out from the first valve housing 111, the coolant lines on the vehicle body are disconnected from the coolant lines on the battery pack. The first spring 125 returns to its shape and drives the sliding sleeve 112 to automatically reset so that the inner surface 112d of the first mating section 112a is in sealing contact with the circumferential surface 121d of the first valve head 121a. At the same time, the second spring 225 returns to its shape and drives the second valve plug 221 to automatically reset so that the circumferential surface 222 of the second valve head 221a is in sealing contact with the inner surface 212 of the second mating section 211a. In this way, both the first valve assembly 110 and the second valve assembly 210 are shut off to prevent coolant leakage.

[0107] like Figure 4 As shown, the first valve assembly 110 also includes a first pipe connector 115 communicating with the first valve housing 111, the first pipe connector 115 being used to connect to a coolant pipeline on the vehicle body. The second valve assembly 210 also includes a second pipe connector 215 communicating with the second valve housing 211, the second pipe connector 215 being used to connect to a coolant pipeline on the battery pack. Further details are omitted here.

[0108] In one embodiment, the first substrate and the first valve housing can be formed as a single unit, and the second substrate and the second valve housing can also be formed as a single unit. In other embodiments, the first substrate and the first valve housing can also be formed separately, and the second substrate and the second valve housing can also be formed separately. See also... Figure 2 and Figure 4 The first substrate 101 of the first body 100 also has an end face 102 facing the second body 200.

[0109] like Figure 7As shown, along a first direction A from the second valve assembly 210 to the first valve assembly 110, the inner diameter of the second mating section 211a gradually decreases. Overall, the inner surface 212 of the second mating section 211a forms a first conical surface. The circumferential surface 222 of the second valve head 221a forms a conical surface that matches the first conical surface. Thus, the second valve head 221a and the second mating section 211a form a conical contact. According to this structure, when the second valve housing 211 is pulled out of the first valve housing 111 and the second valve plug 221 automatically resets under the drive of the second spring 225, this conical contact helps reduce the movement resistance between the second valve head 221a and the second mating section 211a, thereby allowing the second valve plug 221 to reset faster, which further helps prevent coolant leakage. Furthermore, since the conical contact helps reduce motion resistance, even with a small restoring force from the second spring 225, the second valve plug 221 can be driven to return as far as possible to a sealed contact between the circumferential surface 222 of the second valve head 221a and the inner surface 212 of the second mating section 211a, thus preventing coolant leakage. It should be understood that the inner surface 212 of the second mating section 211a can also be a generally cylindrical surface, and correspondingly, the circumferential surface 222 of the second valve head 221a is also a generally cylindrical surface.

[0110] In one embodiment, the inclination angle θ3 of the first conical surface relative to the first direction A is between 10 and 20 degrees. This results in a larger gap between the inner surfaces of the first valve head 121a and the second mating section 211a when the first valve head 121a enters the second mating section 211a of the second valve housing 211. This allows for smooth communication between the coolant lines on the vehicle body and the coolant lines on the battery pack, and also reduces the resistance to movement between the second valve head 221a and the second mating section 211a when the second valve plug 221 automatically resets. Of course, the inclination angle of the first conical surface can be set to other values ​​depending on the actual situation.

[0111] For example Figure 7 As shown, a first sealing ring 301 is provided on the circumferential surface 222 of the second valve head 221a. Thus, when the second valve plug 221 engages with the second valve head 221a and the second mating section 211a, the first sealing ring 301 can seal the gap between the inner surface 212 of the second mating section 211a and the circumferential surface 222 of the second valve head 221a (or, between the second valve head 221a and the second mating section 211a) (i.e., achieving a sealed contact between the circumferential surface 222 of the second valve head 221a and the inner surface 212 of the second mating section 211a), preventing coolant leakage.

[0112] Still Figure 7As shown, a first dovetail groove 224 is constructed on the circumferential surface 222 of the second valve head 221a, and a first sealing ring 301 is disposed within the first dovetail groove 224. The opening of the first dovetail groove 224 is relatively small, thus providing a high degree of retention for the first sealing ring 301. This helps prevent the first sealing ring 301 from falling off the second valve head 221a during the reciprocating motion of the second valve plug 221. Of course, depending on the actual situation, other types of grooves can also be constructed on the circumferential surface of the second valve head to retain the first sealing ring, which will not be elaborated here.

[0113] It should be understood that the first sealing ring can also be provided on the inner surface of the second mating section, or the first sealing ring can be provided on both the inner surface of the second mating section and the circumferential surface of the second valve head, which will not be elaborated here.

[0114] Reference Figure 6 and Figure 7 The first mating section 112a of the sliding sleeve 112 has a third end face 112b, and the second mating section 211a of the second valve housing 211 has a fourth end face 211b. The third end face 112b and the fourth end face 211b face each other. A third sealing ring 303 is provided on the third end face 112b. Figure 5a As shown, after the second mating section 211a of the second valve housing 211 is inserted into the first valve housing 111, the third end face 112b abuts against and presses against the fourth end face 211b, thereby sealing the gap between the third end face 112b and the fourth end face 211b. This helps prevent coolant from leaking into the external environment through the gap between the third end face 112b and the fourth end face 211b.

[0115] Reference Figure 8 and Figure 9 The third sealing ring 303 includes an annular body 303a, a sealing lip 303b formed on one end face of the body 303a, and a wall portion 303c. The sealing lip 303b and the wall portion 303c extend circumferentially along the body 303a and are radially spaced apart, forming a groove 303d between the sealing lip 303b and the wall portion 303c. The opening of the groove 303d faces the second mating section 211a of the second valve housing 211. Thus, when the second mating section 211a of the second valve housing 211 abuts against the first mating section 112a of the sliding sleeve 112, the sealing lip 303b is pressed into the groove 303d by the second mating section 211a, thereby further improving the sealing effect of the third sealing ring 303.

[0116] It should be understood that, depending on the actual situation, the third sealing ring can also be set on the fourth end face of the second mating section; or the third sealing ring can be set on both the third end face of the first mating section and the fourth end face of the second mating section.

[0117] Reference Figure 5a and Figure 7 A second sealing ring 302 is provided on the circumferential outer surface of the second mating section 211a of the second valve housing 211. After the second mating section 211a of the second valve housing 211 is inserted into the first valve housing 111, the second sealing ring 302 seals the gap between the second mating section 211a (or the second valve housing 211) and the first valve housing 111.

[0118] Reference Figure 5a and Figure 6 A fourth sealing ring 304 is provided on the circumferential outer surface of the sliding sleeve 112. The fourth sealing ring 304 is used to seal the gap between the sliding sleeve 112 and the first valve body 111.

[0119] Thus, during the use of the pipe connector 1, even if the third sealing ring 303 fails to seal, the second sealing ring 302 and the fourth sealing ring 304 can still prevent coolant from leaking into the external environment from the gap between the third end face 112b and the fourth end face 211b.

[0120] For example Figure 6 As shown, a fifth sealing ring 305 is provided on the circumferential surface 121d of the first valve head 121a. When the first valve head 121a engages with the first mating section 112a, the fifth sealing ring 305 can seal the gap between the circumferential surface 121d of the first valve head 121a and the inner surface 112d of the first mating section 112a (that is, to achieve a sealed contact between the first valve head 121a and the first mating section 112a), thus preventing coolant leakage.

[0121] In one embodiment, a second dovetail groove 124 is formed on the circumferential surface 121d of the first valve head 121a, and the fifth sealing ring 305 is disposed within the second dovetail groove 124. The opening of the second dovetail groove 124 is relatively small, thus providing a stronger retention effect on the fifth sealing ring 305. This helps to prevent the fifth sealing ring 305 from falling off the first valve head 121a during the reciprocating motion of the sliding sleeve 112. Of course, depending on the actual situation, other types of grooves can also be formed on the circumferential surface of the second valve head to retain the second sealing ring, which will not be elaborated here.

[0122] It should be understood that the second sealing ring can also be set on the inner surface of the first mating section, or the second sealing ring can be set on both the circumferential surface of the second valve head and the inner surface of the first mating section, which will not be elaborated here.

[0123] For example Figure 5aAs shown, the inner surface 112d of the first mating section 112a is configured as a cylindrical surface, and the circumferential surface 121d of the first valve head 121a is also a cylindrical surface to match the inner surface 112d of the first mating section 112a. In other embodiments, the inner surface of the first mating section is configured as a second conical surface (not shown in the figure), such that the inner diameter of the first mating section gradually decreases along a first direction from the second valve assembly to the first valve assembly; the circumferential surface of the first valve head is configured as a conical surface that matches the shape of the inner surface of the first mating section (i.e., the second conical surface). In one embodiment, the inclination angle of the second conical surface relative to the first direction A is between 10 degrees and 20 degrees.

[0124] Reference Figure 5a and Figure 10 The end of the first valve housing 111 facing the second valve housing 211 is provided with a guide structure 113. When the second valve housing 211 is inserted into the first valve housing 111, the guide structure 113 guides the second valve housing 211 to facilitate the insertion of the second valve housing 211 into the first valve housing 111.

[0125] Still Figure 10 As shown, the guide structure 113 is configured to converge toward the end face 102 of the first body 100. This reduces the dimension of the guide structure 113 protruding along the second direction B from the first valve assembly 110 to the second valve assembly 210. Overall, the guide structure 113 is generally flanged.

[0126] In some cases, the battery pack is designed to be installed onto the vehicle body along a predetermined path, and the distance it moves toward the vehicle body is limited to a short distance. For example, the predetermined installation path of the battery pack is as follows: First, the battery pack is moved closer to the vehicle body along a first direction of movement X, but the second body 200 on the battery pack and the first body 100 on the vehicle body are still offset along a second direction of movement Y that is substantially perpendicular to the first direction of movement X (e.g., ...). Figure 2 (As shown). Then, the battery pack is moved along the second motion direction Y until the second valve assembly 210 on the second body 200 is aligned with the first valve assembly 110 on the first body 100 (as shown). Figure 3 (As shown). Next, the battery pack is moved toward the vehicle body along the first direction of movement X for installation. In this installation method of the battery pack, the guide structure 113 of this application allows for... Figure 2 In the steps shown, the distance between the battery pack and the vehicle body along the first direction of movement X is minimized as much as possible (i.e., the distance between the second mating section 211a of the second valve housing 211 and the first mating section 112a of the sliding sleeve 112 along the first direction of movement X is reduced), and Figure 3 In the steps shown, the Y-guide structure 113 along the second motion direction will not interfere with the second valve assembly 210.

[0127] It should be noted that in some cases, if the battery pack is configured to have a short distance from the vehicle body along the first direction of motion X (i.e., such as...), Figure 3 As shown, the battery pack moves a relatively short distance toward the vehicle body along the first direction of movement X. This guide structure 113 still provides a good guide for the second valve housing 211, so as to facilitate the insertion operation of the second valve housing 211 into the first valve housing 111.

[0128] For example Figure 10 As shown, the guide structure 113 is configured with a guide surface 113c facing the second valve housing 211. The guide surface 113c includes a first guide ramp 113a and a second guide ramp 113b. The first guide ramp 113a extends from the end of the first valve housing 111 to the end face 102 of the first substrate 101, and forms a first angle θ1 greater than or equal to 45 degrees with the second direction B. The second guide ramp 113b extends from the free end of the first guide ramp 113a, and forms a second angle θ2 with the second direction B, the second angle θ2 being greater than the first angle θ1. Thus, the guide structure 113 is substantially folded close to the end face 102 of the first substrate 101.

[0129] In one embodiment, the first included angle θ1 is between 45 and 50 degrees; the second included angle θ2 is between 60 and 75 degrees. Of course, the first and second included angles can be set to other appropriate values ​​depending on the actual situation, and are not limited here. Furthermore, the dimension of the guide structure 113 protruding along the second direction B can also be determined according to the actual situation, and is not limited here.

[0130] In some other embodiments, the guide surface may also be a complete guide ramp, and the guide ramp forms an angle greater than or equal to 45 degrees with the second direction B.

[0131] like Figure 4 As shown, a receiving space 203 for accommodating the guide structure 113 is constructed on the second substrate 201 of the second body 200. When the second valve housing 211 is inserted into the first valve housing 111, the guide structure 113 automatically enters the receiving space 203 to avoid obstructing the insertion of the second valve housing 211 into the first valve housing 111.

[0132] like Figure 11 As shown, two first mounting holes 103 are provided on the first substrate 101. A first valve assembly 110 is installed in each of the first mounting holes 103. Furthermore... Figure 4As shown, a floating element 104 is provided between each first valve housing 111 and the corresponding first mounting hole 103 to allow each first valve assembly 110 to be radially offset along the corresponding first mounting hole 103. It is understood that this offset may occur during the installation of the pipe connector 1 or during its use. For example, during the connection of the first body 100 and the second body 200, if the first valve housing 111 is not aligned with the corresponding second valve housing 211, the first valve assembly 110 can be substantially radially offset along the first mounting hole 103 until the first valve housing 111 aligns with the corresponding second valve housing 211. The second mating section 211a of the second valve housing 211 can then be smoothly inserted into the first valve housing 111, thereby achieving the connection between the first body 100 and the second body 200. In other words, the first valve assembly 110 can accommodate assembly deviations when the first body 100 and the second body 200 are mated. It is known that after the pipeline connector 1 is installed and put into use, the first valve assembly 110 may also be radially offset along the corresponding first mounting hole 103 due to the influence of the external environment.

[0133] Optionally, the two floating elements 104 installed in the first mounting hole 103 are independent of each other. This allows the two floating elements 104 to function independently when using the pipe connector 1, without interfering with each other. Furthermore, the independence of the two floating elements 104 facilitates individual maintenance and replacement. In another embodiment, the two floating elements 104 can also be connected as a single unit.

[0134] Also refer to Figure 4 and Figure 11 The first substrate 101 is also provided with four second mounting holes 105 and four assembly components 130, each corresponding to one of the four second mounting holes 105. The assembly components 130 are used to mount the first main body 100 onto the vehicle body.

[0135] Reference Figure 11 and Figure 12Each assembly component 130 includes an outer sleeve 131, an inner sleeve 132, and a third spring 133. The outer sleeve 131 has an axially extending inner cavity 1313. The outer sleeve 131 is configured to surround a second mounting hole 105, with a first end 1311 fixedly connected to a first substrate 101 and a second end 1312 open. In one embodiment, the outer sleeve 131 is integrally formed with the first substrate 101. The inner sleeve 132 has an axially extending assembly channel 1323. The inner sleeve 132 extends from the inner cavity 1313 of the outer sleeve 131. Optionally, the inner sleeve 132 is coaxially arranged with the outer sleeve 131, and the assembly channel 1323 is aligned with the second mounting hole 105. The first end 1321 of the inner sleeve 132 can engage or disengage from the first end 1311 of the outer sleeve 131. The second end 1322 of the inner sleeve 132 is located outside the inner cavity 1313. A sheath 134, adapted to the inner cavity 1313, is provided at the second end 1322 of the inner sleeve 132. The sheath 134, the outer sleeve 131, and the inner sleeve 132 together define the receiving space 1326. A third spring 133 is disposed within the receiving space 1326. One end of the third spring 133 abuts against the outer sleeve 131, and the other end abuts against the sheath 134. Thus, the outer sleeve 131 can reciprocate relative to the inner sleeve 132 along the axial direction of the inner sleeve 132.

[0136] Assembly assembly 130 also includes a connector 1324, which is detachable and replaceable. Therefore, any connector (e.g., bolts or screws) adapted to the assembly channel 1323 of the inner sleeve 132 can be used to mount the first body 100 to the vehicle body, facilitating user operation. After the first body 100 is mounted to the vehicle body via the connector 1324 through the inner sleeve 132 of the assembly assembly 130, the inner sleeve 132 remains stationary relative to the vehicle body. The connector 1324 can be axially upward (i.e., as shown in the image). Figure 13 As shown, the sleeve 134 (or the second end 1322 of the inner sleeve 132) passes through the assembly channel 1323 in a direction from the first end 1321 of the inner sleeve 132 to the second end 1322 of the inner sleeve 132, so that the sleeve 134 (or the second end 1322 of the inner sleeve 132) contacts the connecting surface of the vehicle body, thereby installing the first body 100 onto the vehicle body; alternatively, the connector 1324 can be axially downward (i.e., as shown) Figure 14As shown, the first body 100 is mounted to the vehicle body by passing through the assembly channel 1323 in a direction from the second end 1322 of the inner sleeve 132 to the first end 1321 of the inner sleeve 132, so that the first end 1321 of the inner sleeve 132 contacts the connecting surface of the vehicle body. In other words, the first body 100 of this application has two mounting methods. In this way, those skilled in the art can adaptably mount the first body 100 to the connecting surface of the vehicle body at different positions by using either the first end 1321 or the second end 1322 of the inner sleeve 132, depending on the actual setting of the connecting surface of the vehicle body. This facilitates the installation of the first body 100 and also helps to expand the application range of the pipe connector 1.

[0137] The sheath 134 also provides some protection for the receiving space 1326, preventing large particles or pollutants from the external environment from entering the receiving space 1326 and affecting the operation of the third spring 133 and / or the outer sleeve 131.

[0138] In one embodiment, the sheath 134 and the inner sleeve 132 are integrally formed. For example... Figure 12 As shown, the sheath 134 includes a sheath 1343 extending radially outward from the second end 1322 of the inner sleeve 132, and an outer tube 1341 extending from the sheath 1343 toward the first end 1321 of the inner sleeve 132. The sheath 1343 is generally annular and has a central hole 1342. The central hole 1342 is aligned with the mounting channel 1323. At least a portion of the outer tube 1341 is radially spaced from the outer sleeve 131. The second end of the third spring 133 abuts against the sheath 1343.

[0139] For example Figure 12 As shown, the radial dimension of the outer tube 1341 is smaller than the radial dimension of the outer sleeve 131. This means that a portion of the outer tube 1341 is located within the inner cavity 1313, which helps reduce the overall size of the first body 100 (or conduit connector 1) to facilitate its use in confined spaces. Of course, the radial dimension of the outer tube 1341 can also be configured to be larger than the radial dimension of the outer sleeve 131, as needed.

[0140] As with the pipe connector 1 of this application, after the first body 100 is installed on the vehicle body, the inner sleeve 132 is fixedly connected to the vehicle body. When the second valve assembly 210 (or the second body 200) is forcefully pushed to mate the second valve assembly 210 with the first valve assembly 110, the inner sleeve 132 remains stationary, while the first base plate 101 and the outer sleeve 131 may be pushed. In this case, the third spring 133 is compressed, acting as a buffer to avoid damage to the first body 100.

[0141] In one embodiment, such as Figure 12As shown, the third spring 133 is a helical spring arranged around the inner sleeve 132. Of course, the third spring 133 can also be other types of springs, which will not be described in detail here.

[0142] For example Figure 12 As shown, a radially outwardly extending first flange 1325 is constructed at the first end 1321 of the inner sleeve 132. The first flange 1325 is adapted to engage or disengage from the first end 1311 of the outer sleeve 131. Thus, when the first flange 1325 engages with the first end 1311 of the outer sleeve 131, the first flange 1325 constrains the inner sleeve 132 along the axial direction of the inner sleeve 132, preventing the inner sleeve 132 from being pulled out of the outer sleeve 131 in the direction from the first end 1311 to the second end 1312 of the outer sleeve 131. It should be noted that the first flange 1325 does not constrain the inner sleeve 132 in the direction from the second end 1312 to the first end 1311 of the outer sleeve 131. For example, when the third spring 133 is compressed, the inner sleeve 132 and the outer sleeve 131 will move relative to each other (i.e., relative to the inner sleeve 132, the outer sleeve 131 moves in the direction from its first end 1311 to its second end 1312), causing the first end 1321 (or the first flange 1325) of the inner sleeve 132 to separate from the first end 1311 of the outer sleeve 131. It should be noted that since the outer sleeve 131 is connected to the first substrate 101, the first substrate 101 also moves synchronously with the outer sleeve 131 while the outer sleeve 131 moves.

[0143] For example Figure 12As shown, the outer sleeve 131 is also constructed with a guide sleeve 1314 extending from its first end 1311 into the inner cavity 1313. Along the extending direction of the guide sleeve 1314, the inner diameter of the guide sleeve 1314 gradually increases. The inner sleeve 132 extends through the guide sleeve 1314. Overall, the guide sleeve 1314 is generally flared, forming an appropriate gap angle α between the guide sleeve 1314 and the inner sleeve 132. This gap angle α can accommodate changes in the angle between the outer sleeve 131 and the inner sleeve 132. For example, when it is necessary to connect the first body 100 to the second body 200, the first substrate 101 and the second substrate 201 may not be parallel, which can cause a series of problems such as poor connection between the first valve assembly 110 and the second valve assembly 210, leading to instability in the pipeline connector 1. In this configuration, the outer sleeve 131 can be tilted relative to the inner sleeve 132 by means of a gap angle α. The first substrate 101, fixedly connected to the outer sleeve 131, will also tilt accordingly, adjusting the first substrate 101 to be parallel to the second substrate 201. This facilitates a smooth sealing connection between the first valve assembly 110 and the second valve assembly 210, thereby improving the stability and reliability of the pipeline connector 1. In one embodiment, the aforementioned gap angle α is between 2 and 4 degrees. Of course, the gap angle α can be configured to other angle ranges depending on the actual situation, which will not be elaborated here.

[0144] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A pipe connector, characterized by The pipeline connector (1) comprises: a first body (100) provided with a first valve assembly (110), the first valve assembly (110) comprising: a first valve housing (111); a sliding sleeve (112) slidably disposed in the first valve housing (111) and having a first mating section (112a); and a first valve plug (121) extending through the sliding sleeve (112) and having a first valve head (121a); the first valve head (121a) is adapted to be in sealing contact or separation with an inner surface (112d) of the first mating section (112a); and a second body (200) provided with a second valve assembly (210), the second valve assembly (210) comprising: a second valve housing (211) comprising a body tube (211c) and a second mating section (211a) at an end of the body tube (211c) facing the first valve assembly (110); an inner diameter of the second mating section (211a) is greater than an inner diameter of the first mating section (112a), and the inner diameter of the second mating section (211a) is smaller than an inner diameter of the body tube (211c); and a second valve plug (221) slidably disposed in the second valve housing (211) and having a second valve head (221a); the second valve head (221a) is adapted to be in sealing contact or separation with an inner surface (212) of the second mating section (211a); a radial dimension of the second valve head (221a) is greater than a radial dimension of the first valve head (121a); wherein the second mating section (211a) of the second valve housing (211) is adapted to abut against and be inserted into the first mating section (112a) of the sliding sleeve (112) within the first valve housing (111); the first valve head (121a) abuts against the second valve head (221a) and the first valve head (121a) and the second valve head (221a) enter into the second valve housing (211), the second valve housing (211) having a node position (211d) corresponding to a distal end (121e) of the second valve head (221a) away from the first valve head (121a); a starting end (112c) of the first mating section (112a) away from the second mating section (211a) and the node position (211d) on the second valve housing (211) together define a through-flow passage (11) so that the pipeline connector (1) is in conduction; a ratio of a minimum flow area to a maximum flow area of the through-flow passage (11) is between 0.5 and 1.

2. The tubing connector of claim 1, wherein, The ratio of the minimum flow area to the maximum flow area of the through-flow passage (11) is between 0.9 and 1.

3. The tubing connector of claim 1, wherein, The first valve head (121a) has a first end face (121c), and the second valve head (221a) has a second end face (221c); The first end face (121c) and the second end face (221c) face each other and are adapted to abut against each other; a size of the second end face (221c) is greater than a size of the first end face (121c).

4. The tubing connector of claim 1, wherein, An inner surface (212) of the second mating section (211a) is configured as a first conical surface such that an inner diameter of the second mating section (211a) gradually decreases in a first direction (A) pointing from the second valve assembly (210) to the first valve assembly (110); or the inner surface (212) of the second mating section (211a) is configured as a cylindrical surface; A circumferential surface (222) of the second valve head (221a) is shaped to match a shape of the inner surface (212) of the second mating section (211a).

5. The tubing connector of claim 4, wherein, An inclination angle (θ3) of the first conical surface with respect to the first direction (A) is between 10 degrees and 20 degrees.

6. The tubing connector of claim 1, wherein, A first sealing ring (301) is provided between the inner surface (212) of the second mating section (211a) and the circumferential surface (222) of the second valve head (221a), and the first sealing ring (301) is adapted to seal a gap between the inner surface (212) of the second mating section (211a) and the circumferential surface (222) of the second valve head (221a).

7. The tubing connector of claim 6, wherein, A first dovetail groove (224) is configured on the inner surface (212) of the second mating section (211a) and / or on the circumferential surface (222) of the second valve head (221a), and the first sealing ring (301) is arranged in the first dovetail groove (224).

8. The tubing connector of claim 1, wherein, A second sealing ring (302) is arranged on a circumferential outer surface of the second mating section (211a), and the second sealing ring (302) is adapted to seal a gap between the second mating section (211a) and the first valve housing (111) when the second mating section (211a) is inserted into the first valve housing (111).

9. The tubing connector of claim 1, wherein, The first mating section (112a) has a third end surface (112b), and the second mating section (211a) has a fourth end surface (211b), and the third end surface (112b) and the fourth end surface (211b) face each other; A third sealing ring (303) is provided between the third end surface (112b) and the fourth end surface (211b), and the third sealing ring (303) is adapted to seal a gap between the third end surface (112b) and the fourth end surface (211b).

10. The tubing connector of claim 9, wherein, The third sealing ring (303) includes an annular body (303a), a sealing lip (303b) formed on one end surface of the body (303a), and a wall portion (303c); the sealing lip (303b) and the wall portion (303c) extend along a circumference of the body (303a) and are radially spaced apart to form a groove (303d) between the sealing lip (303b) and the wall portion (303c); The sealing lip (303b) is adapted to be extruded into the groove (303d).

11. The tubing connector of claim 1, wherein, A fourth sealing ring (304) is arranged on a circumferential outer surface of the sliding sleeve (112), and the fourth sealing ring (304) is adapted to seal a gap between the sliding sleeve (112) and the first valve housing (111).

12. The tubing connector of claim 1, wherein, A fifth sealing ring (305) is arranged between the circumferential surface (121d) of the first valve head (121a) and the inner surface (112d) of the first mating section (112a), and is adapted to seal the gap between the circumferential surface (121d) of the first valve head (121a) and the inner surface (112d) of the first mating section (112a).

13. The tubing connector of claim 12, wherein, A second dovetail groove (124) is configured on the circumferential surface (121d) of the first valve head (121a) and / or on the inner surface (112d) of the first mating section (112a), and the fifth sealing ring (305) is arranged in the second dovetail groove (124).

14. The tubing connector of claim 1, wherein, The inner surface (112d) of the first mating section (112a) is configured as a cylindrical surface; or the inner surface (112d) of the first mating section (112a) is configured as a second conical surface, such that the inner diameter of the first mating section (112a) gradually decreases along a first direction (A) pointing from the second valve assembly (210) to the first valve assembly (110). The shape of the circumferential surface (121d) of the first valve head (121a) matches the shape of the inner surface (112d) of the first mating section (112a).

15. The tubing connector of claim 14, wherein, The inclination angle of the second conical surface with respect to the first direction (A) is between 10 degrees and 20 degrees.

16. The tubing connector of claim 1, wherein, An end of the first valve housing (111) facing the second valve housing (211) is configured with a guide structure (113); the second mating section (211a) of the second valve housing (211) is adapted to be inserted into the first valve housing (111) under the guidance of the guide structure (113); The first body (100) has an end surface (102) facing the second body (200); the guide structure (113) is configured to converge towards the end surface (102) of the first body (100).

17. The tubing connector of claim 16, wherein, The guide structure (113) has a guide surface (113c) facing the second valve housing (211), and the guide surface (113c) forms an angle greater than or equal to 45 degrees with a second direction (B) pointing from the first valve assembly (110) to the second valve assembly (210).

18. The tubing connector of claim 17, wherein, The guide surface (113c) includes: A first guide inclined surface (113a) extending from the end of the first valve housing (111); and A second guide inclined surface (113b) extending from the free end of the first guide inclined surface (113a); The first guide inclined surface (113a) forms a first included angle (θ1) greater than or equal to 45 degrees with the second direction (B), and the second guide inclined surface (113b) forms a second included angle (θ2) greater than the first included angle (θ1) with the second direction (B).

19. The tubing connector of claim 18, wherein, The first included angle (θ1) is between 45 degrees and 50 degrees; and the second included angle (θ2) is between 60 degrees and 75 degrees.

20. The tubing connector of claim 1, wherein, The first body (100) further includes a first base plate (101), and two first valve assemblies (110) are mounted on the first base plate (101); The second body (200) further comprises a second base plate (201) on which two second valve assemblies (210) are mounted.

21. The tubing connector of claim 20, wherein, Two first mounting holes (103) are provided on the first base plate (101), and two first valve assemblies (110) are respectively mounted in the two first mounting holes (103); A floating member (104) is arranged between each first valve housing (111) and the corresponding first mounting hole (103) to make each first valve assembly (110) suitable for radial offset along the corresponding first mounting hole (103).

22. The tubing connector of claim 20, wherein, The first valve housing (111) is formed integrally with the first base plate (101), and / or the second valve housing (211) is formed integrally with the second base plate (201).

23. The tubing connector of claim 20, wherein, A second mounting hole (105) and an assembly assembly (130) are further provided on the first base plate (101); the assembly assembly (130) comprises: an outer sleeve (131) having a first end (1311) and a second end (1312) opposite to the first end (1311); an inner cavity (1313) is formed in the inner sleeve (131) and extends through the axial direction of the outer sleeve (131); an inner sleeve (132) having an assembly channel (1323) formed in the inner sleeve (132) and extending through the axial direction of the inner sleeve (132), the assembly channel (1323) is aligned with the second mounting hole (105); at least part of the inner sleeve (132) is arranged in the inner cavity (1313); the inner sleeve (132) has a first end (1321) and a second end (1322), the first end (1321) of the inner sleeve (132) is close to the first end (1311) of the outer sleeve (131), and the second end (1322) of the inner sleeve (132) is close to the second end (1312) of the outer sleeve (131); the first end (1321) of the inner sleeve (132) is suitable for abutting or separating from the first end (1311) of the outer sleeve (131); and a third spring (133) arranged between the outer sleeve (131) and the inner sleeve (132), and a first end of the third spring (133) is constrained at the first end (1311) of the outer sleeve (131), and a second end of the third spring (133) is constrained at the second end (1322) of the inner sleeve (132), and the outer sleeve (131) is suitable for axial movement relative to the inner sleeve (132).

24. The tubing connector of claim 23, wherein, The outer sleeve (131) is further configured with a guide sleeve (1314) extending from the first end (1311) thereof into the inner cavity (1313); the inner sleeve (132) extends through the guide sleeve (1314); The guide sleeve (1314) gradually increases in inner diameter along the direction of its extension into the inner cavity (1313).

25. The tubing connector of claim 23, wherein, A sheath (134) is configured at the second end (1322) of the inner sleeve (132); the sheath (134) comprises a shroud (1343) extending radially outward from the second end (1322) of the inner sleeve (132) and an outer tube (1341) extending from the shroud (1343) toward the first end (1321) of the inner sleeve (132); at least a portion of the outer tube (1341) is radially spaced apart from the outer sleeve (131); the second end of the third spring (133) abuts against the shroud (1343).

26. The tubing connector of claim 23, wherein, The first end (1321) of the inner sleeve (132) is configured with a first flange (1325) extending radially outward, the first flange (1325) being adapted to engage or disengage with the first end (1311) of the outer sleeve (131).

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