A fluid connector

Abstract

The utility model discloses a kind of fluid connectors, including body, upper cover and connector, its key points are: still include sealing assembly, ball valve, handle assembly and positioning assembly.Sealing assembly includes upper cover sealing ring, ball valve sealing pad and connector sealing ring assembly.Upper cover is fixedly arranged on body, and it is formed mutual sealing connection by upper cover sealing ring.Ball valve is sealedly connected with body and / or upper cover by ball valve sealing pad.Connector is formed mutual sealing connection with body by connector sealing ring assembly.Handle assembly includes handle and driving shaft.Handle is drivingly connected with ball valve by driving shaft, so as to be operated ball valve by handle.Positioning assembly includes positioning column, handle opens ball valve when driving positioning column and extends out upper cover.

Description

Technical Field

[0001] This utility model relates to the field of fluid connectors, and more particularly to fluid connectors for fluid transmission. Background Technology

[0002] Fluid connectors are core devices used in industrial fields to achieve rapid connection of high-pressure production fluid pipelines. Their core technologies include the mechanical fit design of a foldable compression section and a snap-fit ​​mechanism, a fluid sealing mechanism with a dual-valve structure, and spatial layout schemes adaptable to different scenarios. Chinese patent document CN117704171A discloses a full-flow fluid connector, including a valve body and interlocking components for controlling fluid flow. The valve body includes a valve body, a connector, a ball valve, a connecting disc, a connecting block, and a handle. A spherical cavity is provided within the valve body. The connector is connected to the valve body and located on one side of the valve body. The ball valve is rotatably disposed within the spherical cavity, and rotating the ball valve controls the opening and closing of the valve body. The connecting disc has a connecting groove and is fixedly connected to the valve body, located on the side away from the connector. The connecting block has a protrusion matching the connecting groove and is fixedly connected to the connecting disc, located on one side of the connecting groove. The interlocking assembly includes a handle, a push rod, a first spring, a ball bearing, and a limiting rod. The handle is fixed to the ball valve and rotates with it. The handle has a limiting groove, and a sliding groove is provided at the end of the connecting groove. The push rod is slidably disposed within the sliding groove. The first spring is disposed within the sliding groove and abuts against the push rod. The cross-sectional height of the push rod decreases from the end closest to the first spring to the other end. The limiting rod has a locking section and a pushing section. The pushing section can slide into the limiting groove to be in a locked position and slide out of the limiting groove to be in an unlocked position. A channel is provided between the limiting rod and the push rod, and the ball bearing can slide into the locking section within the channel to be in a locked position and disengage from the locking section to be in an unlocked position. This structure is relatively complex, and the ball bearing is prone to jamming when pushed. Furthermore, this structure only seals one side of the ball valve, which may affect the sealing effect under fluid pressure. Chinese patent document CN119755442A discloses a fluid connector, comprising: a first pin received in a pin hole and movable back and forth between a locked position and an unlocked position, the first pin including a front end face and a receiving groove penetrating the front end face; a second pin received in the receiving groove and the pin hole and movable back and forth; before the fluid connector is mated with a complementary connector, the front end of the first pin extends forward out of the pin hole, and the first pin is held in the locked position; the second pin is located in the pin hole, and the front end of the second pin is received in the receiving groove; when the fluid connector is mated with the complementary connector, the complementary connector pushes against the first pin, causing the first pin to move backward within the pin hole until the first pin is held in the unlocked position; when the first pin is in the unlocked position, the front end of the second pin moves forward to extend out of the receiving groove and the pin hole and is received in the complementary connector; the first pin and the second pin share the same pin hole, and the second pin at least partially occupies the internal space of the first pin, thereby saving housing space. This structure uses a gear and locking tooth structure for transmission, which is relatively complex to assemble, and when the driving component rotates to drive the second pin to extend, the fluid connectors cannot rotate relative to each other. Utility Model Content

[0003] The purpose of this invention is to provide a fluid connector with a simple structure, good sealing effect, and smooth operation.

[0004] The basic technical solution for achieving the purpose of this utility model is: a fluid connector, including a body, a top cover, and a connector head, characterized by further including a sealing assembly, a ball valve, a handle assembly, and a positioning assembly. The sealing assembly includes a top cover sealing ring, a ball valve sealing gasket, and a connector head sealing ring assembly. The top cover is fixedly mounted on the body and forms a mutually sealing connection through the top cover sealing ring. The ball valve is sealed to the body and / or the top cover through a ball valve sealing gasket. The connector head forms a mutually sealing connection with the body through the connector head sealing ring assembly. The handle assembly includes a handle and a drive shaft. The handle is driven to the ball valve through the drive shaft, thereby operating the ball valve through the handle. The positioning assembly includes a positioning pin, which extends outward beyond the top cover when the handle opens the ball valve.

[0005] Furthermore, in order to lock the connection between the two fluid connectors when the ball valve is opened, a drive groove is provided on the outer periphery of the ball valve along the direction perpendicular to the fluid flow.

[0006] A drive shaft is rotatably mounted on the main body. A drive block is located at the inner end of the drive shaft and slidably positioned within a drive groove. When the drive shaft rotates, it drives the ball valve to rotate via the drive block. When the ball valve is closed, the axis of the drive groove is parallel to the fluid flow direction. The pressure of the fluid on the ball valve allows its movement in the fluid direction to be unrestricted by the drive block on the drive shaft. A handle is fixedly mounted on the drive shaft. A drive protrusion is located on the inner side of the handle, and this protrusion has a guide surface and a positioning surface. The main body has a corresponding drive protrusion groove, in which the drive protrusion is located. The drive protrusion groove is arranged circumferentially along the drive shaft.

[0007] The positioning assembly includes a positioning post and a positioning post drive spring. The positioning post is elastically and slidably disposed in the body and the top cover by the positioning post drive spring. The rear end of the positioning post is spherical and located in the drive protrusion groove. Under the action of the positioning post drive spring, the positioning post moves into the drive protrusion groove and moves outward beyond the top cover under the action of the guide surface of the drive protrusion of the handle. It remains in the extended state under the support of the positioning surface.

[0008] Furthermore, to prevent accidental operation of the ball valve, the handle assembly also includes a locking component. The locking component is used to lock the handle in the open or closed position so that it cannot be rotated.

[0009] Furthermore, to maintain the state of the ball valve: the locking assembly includes an unlocking rod and a first locking pin. The main body has two locking positioning holes, spaced apart circumferentially along the drive shaft. The handle has a locking pin hole; the upper end of the locking pin hole communicates with the corresponding mounting hole on the unlocking rod, and the lower end extends downward through the handle, its position corresponding to the upper locking positioning hole. The unlocking rod has an unlocking notch. The first locking pin slides vertically within the locking pin hole.

[0010] Furthermore, to improve the sealing effect, the ball valve has two gaskets, which are respectively located on the front and rear sides of the ball valve. One gasket is used to seal the connection between the ball valve and the top cover, and the other is used to seal the connection between the ball valve and the body, thus forming a bidirectional seal.

[0011] Furthermore, to ensure both sealing and ease of rotation: the connector sealing ring assembly includes a connector sealing ring and a connector combination seal. The connector sealing ring is an O-ring. The connector combination seal includes an outer ring and an inner ring; the outer ring is made of polytetrafluoroethylene (PTFE), and the inner ring is an O-ring.

[0012] Furthermore, to facilitate rotation and prevent tangling or twisting, a connecting component is also included, through which the connector is rotatably connected to the main body.

[0013] Furthermore, to improve the axial connection reliability: the connecting component is a steel ball, and the inner rear end of the body is provided with a semi-circular mounting groove with an inward opening. One to five radially penetrating mounting screw holes are provided along the circumference of the body, each of which is connected to the mounting groove, and the hole diameter is larger than the cross-sectional radius of the mounting groove.

[0014] The connector has a semi-circular groove with an outward opening along its circumference. The cross-sectional radius of the connector groove corresponds to the cross-sectional radius of the mounting groove. When the connector is installed on the body, the connector groove and the mounting groove form a complete annular groove with a circular cross-section. The steel balls of the corresponding diameter connecting components are fed into the annular groove, thereby limiting and fixing the body and the connector in the axial direction through the steel balls. The connector and the body can rotate relative to each other.

[0015] Furthermore, to prevent the ball valve from opening when the fluid connector is not connected, a protective device is also included that restricts the handle of the handle assembly of the fluid connector that is not connected to other fluid connectors to the closed state.

[0016] Furthermore, to enhance safety, the protective device includes a locking lever and a second locking pin. The locking lever is elastically slidably mounted in the body and top cover via a corresponding compression spring, extending forward beyond the top cover under the action of the spring. A second unlocking notch is provided at the rear end of the locking lever. A protective positioning hole is provided on the body, with its lower end communicating with the corresponding mounting hole of the locking lever and its upper end extending upwards through the body. A second locking pin hole is provided on the handle; when the ball valve is closed, the position of the second locking pin hole corresponds to the position of the protective positioning hole. When the locking lever is pushed back into the top cover by external force, the second unlocking notch is located below the second locking pin.

[0017] The present invention has the following beneficial effects: (1) The fluid connector of the present invention has a simple structure and is easy to operate. It is equipped with multiple locking protections to prevent accidental opening of the ball valve and improve the safety of use. The ball valve adopts bidirectional sealing and has a good sealing effect. When the handle is turned, the driving positioning column extends, and the operation is relatively smooth. This structure does not have specific contact conditions (in the prior art, such as gears and cams, certain conditions are required for normal contact and to complete the function), which reduces the assembly difficulty and has a high yield.

[0018] (2) The fluid connector ball valve of this utility model is sealed in the body and the top cover by sealing gaskets on both sides, thus forming a bidirectional seal. That is, no matter which direction the fluid flows, the ball valve sealing gasket located at the rear end of the ball valve in the direction of fluid flow is always clamped between the ball valve and the body or the top cover, thus playing a sealing role. The ball valve is driven in the circumferential direction by a drive block that is slidably set in its drive groove. The drive block does not restrict the axial or radial direction of fluid flow in the ball valve. On the one hand, it greatly reduces the assembly difficulty, and on the other hand, it can form a floating installation of the ball valve. That is, the ball valve can move adaptively under the action of fluid and form a tight contact with the corresponding sealing gasket, which is more conducive to improving the sealing effect.

[0019] (3) The connector of this utility model is axially limited and fixed to the body by a set of steel balls, so that the connector and the body can rotate relative to each other. This avoids the problem of pipeline twisting affecting the flow rate when multiple fluid connectors and corresponding pipelines are connected together, and ensures that the pipeline is unobstructed. The outer ring of the connector assembly seal is made of polytetrafluoroethylene (PTFE) material, and the inner ring is made of O-ring. They form an end face seal with each other, which not only ensures the sealing effect, but also facilitates the rotation of the connector relative to the body.

[0020] (4) The fluid connector of this utility model is equipped with a protection device. When the fluid connector is not connected to other fluid connectors, the protection device locks the handle in the ball valve closed state, thereby avoiding accidental opening of the ball valve and causing fluid leakage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fluid connector of this utility model in the open state.

[0022] Figure 2 From Figure 1 A three-dimensional diagram for viewing from above.

[0023] Figure 3 for Figure 1 AA section view diagram.

[0024] Figure 4 for Figure 1 A schematic diagram of the cross-section at point B.

[0025] Figure 5 for Figure 1 A top-down view.

[0026] Figure 6 for Figure 5 CC section diagram.

[0027] Figure 7 This is a schematic diagram of the fluid connector of this utility model in the open state.

[0028] Figure 8 From Figure 7 A three-dimensional diagram for viewing from above.

[0029] Figure 9 for Figure 7 DD sectional view diagram.

[0030] Figure 10 for Figure 7 A top-down view.

[0031] Figure 11 for Figure 10 EE sectional view diagram.

[0032] Figure 12 This is a schematic diagram of a ball valve.

[0033] Figure 13 This is a schematic diagram of the handle.

[0034] Figure 14 for Figure 7 A schematic diagram of the 3D structure after removing the handle.

[0035] Figure 15 This is a schematic diagram of the locking lever.

[0036] Figure 16 This is a schematic diagram showing two fluid connectors connected together in a conductive state.

[0037] Figure 17 This is a schematic diagram showing two fluid connectors connected together in the closed state.

[0038] The labels in the attached diagram are: Body 1, mounting slot 11, body mounting screw hole 12, screw 12-1, drive protrusion slide groove 13, locking positioning hole 14, protective positioning hole 15. Top cover 2, claw 21, slot 22, locking hole 23, water seal 2-1 Connector 3, Connector slot 31, Sealing assembly 4, top cover sealing ring 4-1, ball valve sealing gasket 4-2, connector sealing ring assembly 4-3, connector sealing ring 4-31, connector combined seal 4-32. Connection component 5, Ball valve 6, drive groove 61, Handle assembly 7, handle 7-1, drive protrusion 7-11, guide surface 7-111, positioning surface 7-112, locking pin hole 7-12, second locking pin hole 7-13, drive shaft 7-2, shoulder 7-21, drive block 7-22. Locking assembly 7-3, unlocking lever 7-31, unlocking notch 7-311, first locking pin 7-32. Positioning component 8, positioning post 8-1, positioning post drive spring 8-2 Protection device 9, locking rod 9-1, second locking pin 9-2. Detailed Implementation

[0039] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. The description of the orientation of this utility model is as follows: Figure 1 Proceeding in the indicated direction, that is Figure 1 The up, down, left, and right directions shown are the same as the front, back, left, and right directions described. Figure 1 The direction one faces is upward, and the direction one turns away from is also upward. Figure 1 The side is below. The terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model or simplifying the description, and do not indicate a specific orientation that must be present.

[0040] (Example 1) See Figures 1 to 17 The fluid connector of this utility model includes a body 1, a top cover 2, a connector 3, a sealing assembly 4, a connecting assembly 5, a ball valve 6, a handle assembly 7, a positioning assembly 8, and a protective device 9.

[0041] See Figures 1 to 3 and Figures 14 to 16The rear end of the main body 1 has a semi-circular mounting groove 11 with an inward opening. There are 1 to 5 mounting screw holes 12 that penetrate the inside and outside of the main body 1 radially along the circumference of the main body 1. In this embodiment, there are 3 holes. Each mounting screw hole 12 is connected to the mounting groove 11 and the hole diameter is larger than the cross-sectional radius of the mounting groove 11.

[0042] The connector 3 is sealed and fixedly connected to the rear end of the body 1, and the relative rotation and axial positioning of the connector 3 and the body 1 are achieved through the connecting assembly 5. The connector 3 has a semi-circular cross-section connector groove 31 with an outward opening along its circumference. The cross-sectional radius of the connector groove 31 corresponds to the cross-sectional radius of the mounting groove 11. When the connector 3 is installed on the body 1, the connector groove 31 and the mounting groove 11 form a complete annular groove with a circular cross-section. The connecting assembly 5 is a steel ball. Several steel balls of corresponding diameter are sent into the annular groove through the mounting screw hole 12 of the body, and then the corresponding screws 12-1 are installed in the mounting screw hole 12 of the body, thereby limiting each steel ball in the annular groove. At this time, the steel balls form an axial limiting and fixing of the body 1 and the connector 3, and the connector 3 and the body 1 can rotate relative to each other.

[0043] See Figures 1 to 3 and Figure 5 The upper cover 2 is fixedly mounted on the front end of the main body 1, and is sealed to the main body 1. A water seal 2-1 is provided in the middle of the upper cover 2, which, in use, cooperates with the water seal on the upper cover of another fluid connector to form a sealed connection between the two fluid connectors. The upper cover 2 has an upwardly protruding claw 21 and an inwardly recessed groove 22. In use, after the claw 21 of one fluid connector extends into the groove 22 of the other fluid connector, the two fluid connectors rotate relative to each other, and the claw 21 extends into the groove 22, forming a fixed connection in both the axial and radial directions. This technology is existing technology. The upper cover 2 also has an upwardly penetrating locking hole 23.

[0044] See Figure 3 and Figure 9 The sealing assembly 4 includes an upper cover sealing ring 4-1, a ball valve sealing gasket 4-2, and a connector sealing ring assembly 4-3.

[0045] The upper cover sealing ring 4-1 is an O-ring. The upper cover sealing ring 4-1 is set between the upper cover 2 and the body 1 to ensure the sealed connection between the upper cover 2 and the body 1.

[0046] There are two ball valve sealing gaskets 4-2, which are respectively located on the front and rear sides of the ball valve 6. One gasket is used to seal the connection between the ball valve 6 and the upper cover 2, and the other is used to seal the connection between the ball valve 6 and the body 1, thus forming a bidirectional seal. That is, no matter which direction the fluid flows from, the ball valve sealing gasket 4-2 located at the rear end of the ball valve 6 in the direction of fluid flow is always clamped between the ball valve 6 and the body 1 or the upper cover 2, thereby achieving a sealing function. In other words, the ball valve 6 is sealed between the body 1 and the upper cover 2 by the two ball valve sealing gaskets 4-2. The outer periphery of the ball valve 6 is provided with a drive groove 61 along the direction perpendicular to the fluid flow.

[0047] The connector sealing ring assembly 4-3 includes a connector sealing ring 4-31 and a connector combination seal 4-32. The connector sealing ring 4-31 is an O-ring and is positioned between the body 1 and the connector 3, in front of the connector groove 31 of the connector 3. The connector combination seal 4-32 includes an outer ring and an inner ring. The outer ring is made of polytetrafluoroethylene (PTFE), and the inner ring is an O-ring. The connector combination seal 4-3 is positioned between the body 1 and the connector 3, in front of the connector groove 31 of the connector 3.

[0048] See Figures 1 to 3 , Figures 6 to 9 and Figure 11 The handle assembly 7 includes a handle 7-1, a drive shaft 7-2, and a locking assembly 7-3. The locking assembly 7-3 is used to lock the handle 7-1 in the open or closed state so that it cannot be rotated.

[0049] The drive shaft 7-2 is rotatably mounted on the body 1 and is sealed to the body 1 by two drive shaft sealing rings 7-2-1. The inner end of the drive shaft 7-2 has a shoulder 7-21, which axially limits the drive shaft 7-2 within the body 1. The inner end of the drive shaft 7-2 has a drive block 7-22, which is slidably mounted in the drive groove 61. When the drive shaft 7-2 rotates, it drives the ball valve 6 to rotate via the drive block 7-22. When the ball valve 6 is closed, since the drive groove 61 is positioned perpendicular to the fluid flow direction, its axial direction is parallel to the fluid flow direction. The pressure of the fluid on the ball valve 6 prevents its movement in the fluid direction from being restricted by the drive block 7-22 of the drive shaft 7-2. The fluid presses the ball valve 6 against the sealing gasket 4-2 between it and the upper cover 2, improving the sealing effect. The handle 7-1 is fixedly mounted on the drive shaft 7-2 and is drive-connected to it. Operating the handle 7-1 drives the drive shaft 7-2 to rotate. A drive protrusion 7-11 is provided on the inner side of the handle 7-1 (that is, the side closer to the body 1). The drive protrusion 7-11 has a guide surface 7-111 and a positioning surface 7-112 along the circumferential direction of the axis of the handle 7-1. The body 1 has a corresponding drive protrusion groove 13. The drive protrusion 7-11 is located in the drive protrusion groove 13, and the drive protrusion groove 13 is arranged along the circumferential direction of the drive shaft 7-2.

[0050] See Figure 14 The locking assembly 7-3 includes an unlocking lever 7-31 and a first locking pin 7-32. The main body 1 has two locking positioning holes 14, spaced 90 degrees apart circumferentially along the drive shaft 7-2. The unlocking lever 7-31 is elastically slidably mounted on the handle 7-1 via a corresponding compression spring, with its pressing end extending beyond the handle 7-1. The handle 7-1 has a locking pin hole 7-12, the upper end of which communicates with the corresponding mounting hole of the unlocking lever 7-31, and the lower end extending downward through the handle 7-1, its position corresponding to the locking positioning hole 14 on the main body 1. The unlocking lever 7-31 has an unlocking notch 7-311. The first locking pin 7-32 is slidably mounted in the locking pin hole 7-12 in a vertical direction, with both ends of the first locking pin 7-32 being hemispherical. In use, when the compression spring pushes the pressing end of the unlocking lever 7-31 outward, the lower end of the first locking pin 7-32 is positioned in the locking positioning hole 14, and its upper end is in contact with the unlocking lever 7-31, which limits and fixes it upward. At this time, the handle 7-1 cannot rotate. When the pressing end of the unlocking lever 7-31 is pressed into the handle 7-1 to unlock, the unlocking notch 7-311 of the unlocking lever 7-31 is located above the first locking pin 7-32. At this time, rotating the handle 7-1 will cause the first locking pin 7-32 to slide upward from the locking positioning hole 14, and its upper end will move into the unlocking notch 7-311, thus allowing the handle 7-1 to rotate.

[0051] See Figure 6 , Figure 11 and Figure 14 The positioning component 8 includes a positioning post 8-1 and a positioning post drive spring 8-2. The positioning post 8-1 is elastically slidably disposed in the body 1 and the upper cover 2 by the positioning post drive spring 8-2. The rear end of the positioning post 8-1 is spherical and located in the drive protrusion groove 13. Under the action of the positioning post drive spring 8-2, the positioning post 8-1 moves into the drive protrusion groove 13 and moves outward to extend outside the upper cover 2 under the action of the guide surface 7-111 of the drive protrusion 7-11 of the handle 7-1. It remains extended under the support of the positioning surface 7-112. When in use, it extends into the corresponding locking hole 23 of the upper cover 2 of another fluid connector, thereby forming a circumferential and radial limiting fixation for the two fluid connectors.

[0052] See Figure 6 , Figure 11 and Figure 15 The protective device 9 includes a locking rod 9-1 and a second locking pin 9-2. The locking rod 9-1 is elastically slidably disposed in the body 1 and the upper cover 2 by a corresponding compression spring, and extends forward out of the upper cover 2 under the action of the compression spring. The rear end of the locking rod 9-1 is provided with a second unlocking notch 9-11. The body 1 is provided with a protective positioning hole 15, the lower end of which is connected to the corresponding mounting hole of the locking rod 9-1, and the upper end extends upward through the body 1. The handle 7-1 is provided with a second locking pin hole 7-13. When the ball valve 6 is in the closed state, the position of the second locking pin hole 7-13 corresponds to the position of the protective positioning hole 15. The second locking pin 9-2 is slidably disposed in the protective positioning hole 15 in the vertical direction, and both ends of the second locking pin 9-2 are hemispherical. In use, when the compression spring pushes the front end of the locking rod 9-1 forward, the corresponding upper part of the second locking pin 9-2 is located in the protective positioning hole 15, and the lower end is in contact with the locking rod 9-1, which limits and fixes it downward. At this time, the handle 7-1 cannot rotate. When the two fluid connectors are fixedly connected together, when the locking rod 9-1 is pushed back into its own upper cover 2 by the upper cover 2 of the other fluid connector, the second unlocking notch 9-11 of the locking rod 9-1 is located below the second locking pin 9-2. At this time, rotating the handle 7-1 will cause the second locking pin 9-2 to move from the second locking pin hole 7-13 into the second unlocking notch 9-11 and slide out of the second locking pin hole 7-13, thereby allowing the handle 7-1 to be rotated to operate the ball valve 6.

[0053] When using the fluid connector of this utility model, two fluid connectors are inserted into each other's slots 22 via their respective claws 21 and then rotated to fix the connection. At this time, the locking rod 9-1 of the protective device 9 of the fluid connector is pressed back into its own upper cover 2 by the upper cover 2 of the other fluid connector, so that the second unlocking notch 9-11 of the locking rod 9-1 is located below the second locking post 9-2. At this time, the second locking post 9-2 does not limit or fix the handle 7-1. After connecting the two fluid connectors, press the unlocking lever 7-31 of the locking assembly 7-3 so that the unlocking notch 7-311 of the unlocking lever 7-31 is above the first locking pin 7-32. Then rotate the handle 7-1, and the first locking pin 7-32 will slide upward from the locking positioning hole 14, with its upper end moving into the unlocking notch 7-311. This allows the handle 7-1 to be rotated to open the ball valve 6. Similarly, to close the ball valve 6, press the unlocking lever 7-31 of the locking assembly 7-3 so that the unlocking notch 7-311 of the unlocking lever 7-31 is above the first locking pin 7-32. The handle 7-1 can then be rotated.

[0054] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fluid connector, comprising a body (1), a top cover (2), and a connector (3), characterized in that: It also includes a sealing assembly (4), a ball valve (6), a handle assembly (7), and a positioning assembly (8); the sealing assembly (4) includes a top cover sealing ring (4-1), a ball valve sealing gasket (4-2), and a connector sealing ring assembly (4-3); the top cover (2) is fixedly mounted on the body (1) and forms a mutual sealing connection through the top cover sealing ring (4-1); the ball valve (6) is sealed to the body (1) and / or the top cover (2) through the ball valve sealing gasket (4-2); the connector (3) forms a mutual sealing connection with the body (1) through the connector sealing ring assembly (4-3); the handle assembly (7) includes a handle (7-1) and a drive shaft (7-2); the handle (7-1) is driven to the ball valve (6) through the drive shaft (7-2), thereby operating the ball valve (6) through the handle (7-1); the positioning assembly (8) includes a positioning pin (8-1), which is driven to extend outward from the top cover (2) when the handle (7-1) opens the ball valve (6).

2. The fluid connector according to claim 1, characterized in that: The ball valve (6) has a drive groove (61) on its outer periphery along the direction perpendicular to the fluid flow. The drive shaft (7-2) is rotatably mounted on the body (1). The inner end of the drive shaft (7-2) is provided with a drive block (7-22). The drive block (7-22) is slidably mounted in the drive groove (61). Thus, when the drive shaft (7-2) rotates, it drives the ball valve (6) to rotate through the drive block (7-22). When the ball valve (6) is closed, the axial direction of the drive groove (61) is parallel to the fluid flow direction. The pressure of the fluid on the ball valve (6) makes the movement of the ball valve in the fluid direction unaffected by the drive shaft (7-2). The drive block (7-22) is restricted; the handle (7-1) is fixedly mounted on the drive shaft (7-2); the inner side of the handle (7-1) is provided with a drive protrusion (7-11), the drive protrusion (7-11) is provided with a guide surface (7-111) and a positioning surface (7-112); the body (1) is provided with a corresponding drive protrusion groove (13), the drive protrusion (7-11) is located in the drive protrusion groove (13), and the drive protrusion groove (13) is arranged along the circumference of the drive shaft (7-2); The positioning component (8) includes a positioning post (8-1) and a positioning post drive spring (8-2). The positioning post (8-1) is elastically slidably disposed in the body (1) and the top cover (2) by the positioning post drive spring (8-2). The rear end of the positioning post (8-1) is spherical and located in the drive protrusion groove (13). The positioning post (8-1) moves into the drive protrusion groove (13) under the action of the positioning post drive spring (8-2). Under the action of the guide surface (7-111) of the drive protrusion (7-11) of the handle (7-1), it moves outward and extends out of the top cover (2). It remains extended under the support of the positioning surface (7-112).

3. The fluid connector according to claim 1, characterized in that: The handle assembly (7) also includes a locking assembly (7-3); the locking assembly (7-3) is used to lock the handle (7-1) in the open or closed state so that it cannot be rotated.

4. The fluid connector according to claim 3, characterized in that: The locking assembly (7-3) includes an unlocking rod (7-31) and a first locking pin (7-32); the body (1) is provided with two locking positioning holes (14), which are set at a circumferential interval of (90) degrees along the drive shaft (7-2); the handle (7-1) is provided with a locking pin hole (7-12), the upper end of the locking pin hole (7-12) is connected to the corresponding mounting hole of the unlocking rod (7-31), and the lower end passes through the handle (7-1) downward, and its position corresponds to the locking positioning hole (14) on the body (1); the unlocking rod (7-31) is provided with an unlocking notch (7-311); the first locking pin (7-32) is slidably disposed in the locking pin hole (7-12) along the up and down direction.

5. The fluid connector according to claim 1, characterized in that: There are two ball valve gaskets (4-2). The two ball valve gaskets (4-2) are respectively set on the front and rear sides of the ball valve (6). One is used to seal the connection between the ball valve (6) and the top cover (2), and the other is used to seal the connection between the ball valve (6) and the body (1), thus forming a bidirectional seal.

6. The fluid connector according to claim 1, characterized in that: The connector sealing ring assembly (4-3) includes a connector sealing ring (4-31) and a connector combination seal (4-32); the connector sealing ring (4-31) is an O-ring; the connector combination seal (4-32) includes an outer ring and an inner ring, the outer ring is made of polytetrafluoroethylene material and the inner ring is an O-ring.

7. The fluid connector according to any one of claims 1 to 6, characterized in that: It also includes a connecting component (5), and the connector (3) is rotatably connected to the body (1) through the connecting component (5).

8. The fluid connector according to claim 7, characterized in that: The connecting component (5) is a steel ball. The inner side of the rear end of the body (1) is provided with a mounting slot (11) with an inward opening and a semi-circular cross section. There are 1 to 5 body mounting screw holes (12) that penetrate the inside and outside of the body (1) radially along the circumference of the body (1). Each body mounting screw hole (12) is connected to the mounting slot (11), and the hole diameter is larger than the cross-sectional radius of the mounting slot (11). The connector (3) has a semi-circular connector slot (31) with an outward opening along its circumference. The cross-sectional radius of the connector slot (31) corresponds to the cross-sectional radius of the mounting slot (11). When the connector (3) is installed on the body (1), the connector slot (31) and the mounting slot (11) form a complete circular annular groove. The steel balls of the corresponding diameter connector assembly (5) are sent into the annular groove, thereby forming an axial limit and fixation of the body (1) and the connector (3) through the steel balls. The connector (3) and the body (1) can rotate relative to each other.

9. The fluid connector according to any one of claims 1 to 6, characterized in that: It also includes a protection device (9) that restricts the handle (7-1) of the handle assembly (7) of the fluid connector that is not connected to other fluid connectors to the closed state.

10. The fluid connector according to claim 9, characterized in that: The protective device (9) includes a locking rod (9-1) and a second locking pin (9-2); the locking rod (9-1) is elastically slidably disposed in the body (1) and the upper cover (2) by a corresponding compression spring, and the locking rod (9-1) extends forward out of the upper cover (2) under the action of the compression spring; the rear end of the locking rod (9-1) is provided with a second unlocking notch (9-11); the body (1) is provided with a protective positioning hole (15), the lower end of the protective positioning hole (15) is connected to the corresponding mounting hole of the locking rod (9-1), and the upper end extends upward through the body (1); the handle (7-1) is provided with a second locking pin hole (7-13), when the ball valve (6) is in the closed state, the position of the second locking pin hole (7-13) corresponds to the position of the protective positioning hole (15) when the handle (7-1) is in the position state; when the locking rod (9-1) is pushed back into the upper cover (2) by external force, the second unlocking notch (9-11) is located below the second locking pin (9-2).

Images