Fluid connector and its fitting

Abstract

This utility model discloses a fluid connector and its joint, relating to the field of connector technology. The joint includes a valve body and a spherical valve core. The valve body includes a mating end face and a valve body channel extending to the mating end face. The spherical valve core is rotatably disposed in the valve body channel. When rotated to a first position, it is used to close the valve body channel; when rotated to a second position, it is used to open the valve body channel. When the spherical valve core is in the first position, a clearance plane is formed on the side of the spherical valve core facing the mating end face. The clearance plane is located within the valve body channel, and a clearance gap is formed between the clearance plane and the mating end face to allow the portion of the outer spherical surface of the spherical valve core of the other joint to protrude from its mating end face. This utility model flattens the spherical valve core, reducing the distance between the central axes of the spherical valve cores of the two joints. While ensuring sufficient rotation space for the two spherical valve cores, it reduces the external dimensions of the joint and the volume of the fluid connector, effectively improving the compactness of the fluid connector.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a fluid connector and its joint. Background Technology

[0002] Fluid connectors typically consist of matching male and female connectors, and are characterized by easy operation and reliable connection. They are widely used in fields such as liquid cooling, engineering machinery, petrochemicals, aerospace, and medical equipment.

[0003] During the connection process, when the male and female connectors mate, the valve cores of both connectors rotate to open or close the flow channel. Currently, most fluid connectors use a ball valve structure for their valve cores. While this design is simple and reliable, in developing this invention, the inventors discovered at least the following problems with the existing technology:

[0004] First, because the ball valve core requires a large rotation radius, sufficient space must be reserved inside the male and female connectors to ensure the normal rotation of the valve core, resulting in an excessively large axial dimension of the fluid connector. Second, in order to avoid interference between the two valve cores during movement, the solution of increasing the connector diameter or lengthening the valve core spacing is adopted, which increases the overall volume of the fluid connector.

[0005] Therefore, the existing fluid connectors are too large in size, which affects their compactness. Utility Model Content

[0006] The purpose of this invention is to provide a fluid connector and its fitting, which effectively improves the technical problem of existing fluid connectors being non-compact due to their excessively large size.

[0007] To achieve the above objectives, this utility model provides a connector for a fluid connector, comprising:

[0008] The valve body includes a mating end face and a valve body channel extending to the mating end face;

[0009] The spherical valve core is rotatably disposed in the valve body channel. When rotated to the first position, it is used to close the valve body channel, and when rotated to the second position, it is used to open the valve body channel. When the spherical valve core is in the first position, a clearance plane is formed on the side of the spherical valve core facing the mating end face. The clearance plane is located in the valve body channel, and the clearance plane and the mating end face form a clearance gap. The clearance gap is used to avoid the part of the outer spherical surface of the spherical valve core of the other connector that protrudes from its mating end face.

[0010] In some embodiments, a valve core channel is formed at the center of the spherical valve core; a connector body is fixed at one end of the valve body away from the mating end face, and a connector channel is formed at the center of the connector body, which is connected to the valve body channel.

[0011] When the ball valve core is in the first position, the connector channel is perpendicular to the valve core channel; when the ball valve core is in the second position, the connector channel is connected to the valve core channel.

[0012] In some embodiments, the ball valve core has a pressure relief port on the side away from the clearance plane; when the ball valve core is in the first position, the pressure relief port is in communication with the connector channel.

[0013] In some embodiments, a valve seat is fixed between the connector body and the valve body; a fastener is provided through the connecting flange of the valve seat, and the fastener is fixedly connected to the valve body; a limiting pin is provided through the valve seat radially, and a limiting ring groove is provided on the connector body, with the limiting pin and the limiting ring groove engaging in a concave-convex fit.

[0014] In some embodiments, a connecting sealing ring is provided between the connector body and the valve seat, and between the valve seat and the valve body.

[0015] In some embodiments, the ball valve core is provided with locking grooves on two opposite sides; the valve body is provided with rotating blocks on two opposite sides, the rotating blocks are provided with locking protrusions, the locking protrusions and locking grooves are engaged; the rotating blocks drive the ball valve core to rotate between a first position and a second position.

[0016] In some embodiments, the valve body is provided with rotating through holes on two opposite sides, a rotating block is rotatably disposed in the rotating through hole, and a rotating sealing ring is provided between the rotating block and the rotating through hole.

[0017] In some embodiments, a rotating handle is provided on the outside of the valve body, and the rotating handle is fixedly connected to one of the rotating blocks; the rotating handle is used to drive the ball valve core to rotate through the rotating block.

[0018] In some embodiments, the outer surface of the valve body is provided with a limiting groove, and the rotating handle is provided with a limiting protrusion. The limiting protrusion and the limiting groove are in concave-convex fit, and the limiting groove guides the ball valve core to rotate between the first position and the second position through the limiting protrusion.

[0019] This utility model also provides a fluid connector, including two of the above-mentioned connectors, with the mating end faces of the two connectors arranged opposite each other.

[0020] Compared with the prior art, the technical solution provided by this utility model has at least the following beneficial effects:

[0021] This invention optimizes the spherical valve core of the connector. The optimized spherical valve core has a clearance plane on the side facing its mating end face. The clearance plane forms a clearance gap with the mating end face of the valve body to avoid the part of the outer spherical surface of the spherical valve core of the other connector that protrudes from its mating end face. This invention flattens the spherical valve core to reduce the distance between the central axes of the spherical valve cores of the two connectors. While ensuring that the two spherical valve cores have sufficient rotation space, the overall size of the connector is reduced, thereby reducing the volume of the fluid connector and effectively improving the compactness of the fluid connector. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 A schematic diagram of the connector of the fluid connector provided in an embodiment of this utility model;

[0024] Figure 2 for Figure 1 Exploded view;

[0025] Figure 3 for Figure 1 Another exploded view;

[0026] Figure 4 for Figure 1 Cross-sectional view of the assembled connector body and valve seat;

[0027] Figure 5 for Figure 4 Exploded view;

[0028] Figure 6 A diagram showing the state when the ball valve cores 11 of both connectors of the fluid connector provided in this embodiment of the present invention are in the first position;

[0029] Figure 7 A diagram showing the state of the fluid connector provided in this embodiment of the present invention when only one of the two connectors, the ball valve core, rotates 45 degrees from the first position.

[0030] Figure 8 A diagram showing the state of the fluid connector provided in this embodiment of the present invention when only one of the two connectors, the ball valve core, rotates from the first position to the second position.

[0031] Figure 9 This is a schematic diagram of a fluid connector provided in an embodiment of the present invention.

[0032] The attached figures are labeled as follows:

[0033] 1. Valve body; 2. Ball valve core; 3. Connector body; 4. Valve seat; 5. Fastener; 6. Limit pin; 7. Connecting sealing ring; 8. Rotating block; and 9. Rotating handle.

[0034] The mating end face 11, the valve body channel 12, and the limiting groove 13;

[0035] 21, valve core channel 22, pressure relief port 23 and snap-fit ​​groove 24;

[0036] Clearance 211;

[0037] Connector channel 31 and limiting ring groove 32;

[0038] The snap-fit ​​protrusion 81 and the rotary sealing ring 82;

[0039] Limiting protrusion 91. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] This utility model discloses a fluid connector connector, as shown in the attached figure. Figure 1 As shown, the device includes a valve body 1 and a ball valve core 2. The valve body 1 includes a mating end face 11 and a valve body channel 12 extending to the mating end face 11. The mating end face 11 refers to the end face of the valve body 1 opposite to the other valve body when two connectors are mated. The valve body channel 12 is a passage for fluid flow.

[0043] The ball valve core 2 is rotatably disposed in the valve body channel 12; when the ball valve core 2 rotates to the first position, the ball valve core 2 can be used to close the valve body channel 12; when the ball valve core 2 rotates to the second position, the ball valve core 2 can be used to open the valve body channel 12.

[0044] As attached Figure 1As shown, when the spherical valve core 2 is in the first position, a clearance plane 21 is formed on the side of the spherical valve core 2 facing the mating end face 11. The clearance plane 21 is located inside the valve body channel 12, and the clearance plane 21 and the mating end face 11 are parallel to each other to form a clearance gap 211. That is, a clearance gap 211 is formed between the clearance plane 21 and the mating end face 11, as shown in the attached figure. Figures 6 to 8 As shown, the clearance 211 is used to allow the portion of the outer spherical surface of the ball valve core of the other connector to protrude beyond its mating end face 11, as shown in the attached figure. Figure 7 As shown. The valve core channel 22 of the spherical valve core 2 is flattened at both ends. The end face of the valve core channel 22 is connected to the clearance plane 21 through a spherical surface. The clearance gap 211 is the spherical surface of the spherical valve core that avoids the other joint during the rotation of the spherical valve core.

[0045] This invention reduces the distance between the central axes of the two ball valve cores 2 by flattening the side of the ball valve core 2. While ensuring that the two ball valve cores 2 have sufficient rotation space, the overall size of the connector is reduced, thereby reducing the volume of the fluid connector and effectively improving the compactness of the fluid connector.

[0046] It should also be noted that, considering that the clearance 211 can only accommodate the portion of the outer spherical surface of the ball valve core of the other connector that protrudes beyond its mating end face 11, and cannot simultaneously accommodate the outer spherical protrusions of both structures, for the fluid connector, only one ball valve core can be rotated at a time. That is, the ball valve cores of the two connectors cannot rotate simultaneously to avoid collision between the ball valve cores of the two connectors. Specifically, this can be understood as follows: the ball valve core of the other connector can only rotate after the ball valve core 2 of one connector has rotated from the first position to the second position.

[0047] As a preferred embodiment, as shown in the appendix Figure 2 and 3 As shown, a valve core channel 22 is formed at the center of the spherical valve core 2, and the central axis of the valve core channel 22 is perpendicular to the normal of the clearance plane 21. A connector body 3 is fixed at the end of the valve body 1 away from the mating end face 11 for connecting to an external pipeline. A connector channel 31 is formed at the center of the connector body 3, and the connector channel 31 is connected to the valve body channel 12.

[0048] When the ball valve core 2 is in the first position, the connector channel 31 is perpendicular to the valve core channel 22, and the two are not connected. At this time, the clearance plane 21 faces the mating end face 11, and the connector is closed, as shown in the attached figure. Figure 6 As shown. When the ball valve core 2 is in the second position, the connector channel 31 and the valve core channel 22 are connected to form a sealed flow channel, and the connector is opened.

[0049] It should be noted that the angle between the first position and the second position is 90 degrees.

[0050] As a preferred embodiment, the spherical valve core 2 has a pressure relief port 23 on the side away from the clearance plane 21, as shown in the attached figure. Figures 6 to 8 As shown; when the spherical valve core 2 is in the first position, the clearance plane 21 faces the mating end face 11, and the pressure relief port 23 communicates with the valve body channel 12, as shown in the attached figure. Figure 6 As shown, the aforementioned arrangement effectively prevents a sharp increase in pressure within the joint due to temperature rise or external pressure changes in the fluid within the valve body channel 12. The pressure relief port 23, by releasing pressure, reduces the risk of damage to the sealing ring within the joint due to overpressure, thus extending the joint's service life. Specifically, the pressure relief port 23 and the clearance plane 21 are respectively located on opposite sides of the spherical valve core 2. The end face of the pressure relief port 23 is also flattened to form a pressure relief end face, which is parallel to the clearance plane 21. The diameter of the pressure relief port 23 is smaller than the diameter of the valve body channel 12.

[0051] The connector body 3 has a tapered guide port at one end facing the ball valve core 2, as shown in the attached figure. Figures 6 to 8 As shown, when the spherical valve core 2 is in the first position, the spherical surfaces on both sides of the pressure relief end face are embedded in the conical guide port to ensure that the connector body 3 and the spherical valve core 2 are fitted and connected to each other, thus avoiding leakage between them.

[0052] As a preferred embodiment, as shown in the appendix Figures 2 to 5 As shown, a valve seat 4 is fixed between the connector body 3 and the valve body 1; a fastener 5 passes through the connecting flange 41 of the valve seat 4, and the fastener 5 is fixedly connected to the valve body 1, so that the valve seat 4 is reliably fixed on the valve body 1. The fastener 5 can specifically be a connecting bolt. A limiting pin 6 passes through the valve seat 4 radially, and the connector body 3 is provided with a limiting annular groove 32, as shown in the attached figure. Figure 5 As shown, the limiting pin 6 and the limiting ring groove 32 engage in a concave-convex fit, limiting the position of the connector body 3 along the axial direction of the connector, effectively ensuring a reliable connection between the valve seat 4 and the connector body 3, and facilitating disassembly and assembly. Of course, the connection method between the connector body 3, the valve seat 4, and the valve body 1 is not limited to this.

[0053] As a preferred embodiment, as shown in the appendix Figures 6 to 8 As shown, connecting sealing rings 7 are provided between the connector body 3 and the valve seat 4, and between the valve seat 4 and the valve body 1, effectively ensuring good sealing between the valve body 1, the valve seat 4, and the connector body 3, preventing leakage from the connector. The connecting sealing rings can be O-rings, but are not limited to these.

[0054] As a preferred embodiment, as shown in the appendix Figure 2 and 3As shown, the spherical valve core 2 has locking grooves 24 on both opposite sides. The line connecting the two locking grooves 24 is the rotation axis of the spherical valve core 2. The rotation axis of the spherical valve core 2, the central axis of the valve core channel 22, and the normal of the clearance plane 21 are all parallel to each other. Correspondingly, the valve body 1 has rotatable rotating blocks 8 on both opposite sides. The rotating blocks 8 have locking protrusions 81. The locking protrusions 81 and locking grooves 24 are engaged in a concave-convex fit along the rotation axis, so that the two rotating blocks 8 drive the spherical valve core 2 to rotate relative to the valve body 1 between the first position and the second position.

[0055] As a preferred embodiment, as shown in the appendix Figure 2 and 3 As shown, the valve body 1 has rotating through holes on two opposite sides. The rotating block 8 is rotatably disposed in the rotating through hole. A rotating sealing ring 82 is provided between the rotating block 8 and the rotating through hole to prevent leakage between the valve body 1 and the rotating block 8, thereby improving the sealing performance of the joint. The rotating sealing ring can be an O-ring rubber seal, but is not limited to this.

[0056] As a preferred embodiment, as shown in the appendix Figure 2 and 3 As shown, a rotating handle 9 is provided on the outer side of the valve body 1. The rotating handle 9 is fixedly connected to one of the rotating blocks 8. Rotating the rotating handle 9 causes the ball valve core 2 to rotate between a first position and a second position via the rotating block 8. The rotating handle 9 adjusts the position of the ball valve core 2, thereby quickly switching the working state of the connector and making operation more convenient.

[0057] As a preferred embodiment, as shown in the appendix Figure 2 and 3 As shown, the outer side of the valve body 1 is provided with a limiting groove 13, and the rotating handle 9 is provided with a limiting protrusion 91. The limiting protrusion 91 and the limiting groove 13 are in concave-convex fit. The limiting groove 13 guides the ball valve core 2 to rotate between the first position and the second position through the limiting protrusion 91. By limiting the rotation angle of the rotating handle 9, the position of the ball valve core 2 can be precisely adjusted, the adjustment accuracy is higher, and the leakage caused by the ball valve core 2 not rotating to the correct position is reduced.

[0058] This utility model also provides a fluid connector, as shown in the attached figure. Figure 9As shown, the device includes two connectors, with their mating end faces 11 facing each other, providing the same beneficial effects. The two connectors are designated as a first connector and a second connector. When the first and second connectors are mated, their mating end faces abut against each other. Rotating the handle 9 of either the first or second connector sequentially adjusts the position of the ball valve cores 2. When both ball valve cores 2 are in the first position, the two clearance planes 21 are parallel and opposite each other, and both connectors remain closed; at this time, the fluid connector is in a cut-off state. When both ball valve cores 2 are in the second position, the two valve core channels 22 are respectively connected to the valve body channel 12, and both connectors remain open; at this time, the fluid connector is in a connected state.

[0059] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0060] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A connector for a fluid connector, characterized in that, include: Valve body (1), the valve body (1) includes a mating end face (11) and a valve body channel (12) extending to the mating end face (11). A spherical valve core (2) is rotatably disposed in the valve body channel (12). When rotated to the first position, it is used to close the valve body channel (12), and when rotated to the second position, it is used to open the valve body channel (12). When the spherical valve core (2) is in the first position, a clearance plane (21) is formed on the side of the spherical valve core (2) facing the docking end face (11). The clearance plane (21) is located in the valve body channel (12), and the clearance plane (21) and the docking end face (11) form a clearance gap (211). The clearance gap (211) is used to avoid the part of the outer spherical surface of the spherical valve core of the other connector that protrudes from its docking end face (11).

2. The connector of the fluid connector according to claim 1, characterized in that, The ball valve core (2) has a valve core channel (22) formed in the center; the valve body (1) is fixed with a connector body (3) at one end away from the mating end face (11), and a connector channel (31) is formed in the center of the connector body (3), and the connector channel (31) is connected to the valve body channel (12). When the spherical valve core (2) is in the first position, the connector channel (31) is perpendicular to the valve core channel (22); when the spherical valve core (2) is in the second position, the connector channel (31) is connected to the valve core channel (22).

3. The connector of the fluid connector according to claim 2, characterized in that, The ball valve core (2) has a pressure relief port (23) on the side away from the avoidance plane (21); when the ball valve core (2) is in the first position, the pressure relief port (23) is connected to the connector channel (31).

4. The connector of the fluid connector according to claim 3, characterized in that, A valve seat (4) is fixed between the connector body (3) and the valve body (1); a fastener (5) is provided through the connecting flange (41) of the valve seat (4), and the fastener (5) is fixedly connected to the valve body (1); a limiting pin (6) is provided through the valve seat (4) radially, and a limiting ring groove (32) is provided on the connector body (3), and the limiting pin (6) and the limiting ring groove (32) are in concave-convex fit.

5. The connector of the fluid connector according to claim 4, characterized in that, A connecting sealing ring (7) is provided between the connector body (3) and the valve seat (4) and between the valve seat (4) and the valve body (1).

6. The connector of the fluid connector according to any one of claims 1 to 5, characterized in that, The spherical valve core (2) is provided with locking grooves (24) on both opposite sides; the valve body (1) is provided with rotating blocks (8) on both opposite sides, and the rotating blocks (8) are provided with locking protrusions (81), which are in concave-convex fit with the locking grooves (24); the rotating blocks (8) drive the spherical valve core (2) to rotate between the first position and the second position.

7. The connector of the fluid connector according to claim 6, characterized in that, The valve body (1) is provided with rotating through holes on two opposite sides, and the rotating block (8) is rotatably disposed in the rotating through hole. A rotating sealing ring (82) is provided between the rotating block (8) and the rotating through hole.

8. The connector of the fluid connector according to claim 7, characterized in that, The valve body (1) is provided with a rotating handle (9) on the outside. The rotating handle (9) is fixedly connected to one of the rotating blocks (8). The rotating handle (9) is used to drive the spherical valve core (2) to rotate through the rotating block (8).

9. The connector of the fluid connector according to claim 8, characterized in that, The outer side of the valve body (1) is provided with a limiting groove (13), and the rotating handle (9) is provided with a limiting protrusion (91). The limiting protrusion (91) and the limiting groove (13) are in concave-convex cooperation. The limiting groove (13) guides the spherical valve core (2) to rotate between the first position and the second position through the limiting protrusion (91).

10. A fluid connector, characterized in that, It includes two connectors as described in any one of claims 1 to 9, wherein the mating end faces (11) of the two connectors are disposed opposite each other.

Images