TW202223277A - fluid connector - Google Patents

Abstract

The invention provides a fluid connector, which comprises a male joint and a female joint. A long-distance surface sealing effect is generated by virtue of large-area contact of a filling piece with a section of male valve hole, and a surface hole sealing effect of large-area contact of a cock piece with a section of female valve hole is matched; when the first section of female valve hole leaves the cock piece, the first section of male valve hole and the cock piece can form sealing in an exchange mode, or in the process that the first section of female valve hole returns to the cock piece, the first section of male valve hole can be continuous in the state that the first section of male valve hole is sealed by the cock piece and the packing piece at the same time, and therefore the first section of male valve hole can be continuously sealed. The one-section male valve hole is closed through the return action of the filling piece without disconnection exchange; therefore, the male joint and the female joint can achieve the benefit that the two sections can prevent fluid leakage, seepage or leakage before butt joint, in the butt joint process, after butt joint, in the separation process or after separation.

Description

fluid connector

The invention relates to a fluid connector which is not easy to have fluid leakage, external leakage or extravasation.

According to the press, the upstream fluid of the pressurized end is transported to the downstream of the low pressure end, and a connector is often installed on the delivery path (such as the delivery pipe) and the receiving path (such as the receiving pipe), so that the delivery path and the receiving path can be selectively communicated or disconnect.

Connectors on the market generally include a male joint and a female joint. Before and after the mating or the process, the upstream fluid output must usually be closed, otherwise the mating port of the male and female joints will discharge fluid; although the male and female joints will discharge fluid; When the joint is about to leave, the upstream switch valve can close the fluid and send it out, but the fluid left in the delivery path (pipeline) or the receiving path will still leak from the interface of the male joint and/or the female joint, polluting or affecting the environment .

Commonly used, such as TWI427231 and TWI463089 Taiwan invention patents, are a kind of connector or coupler, both of which are equipped with valve parts in the male and female joints. When the male and female joints are butted, the valve is opened to connect the upstream and downstream fluids, otherwise, the valve is closed. , limit the upstream fluid output; although it can omit the use of the upstream on-off valve, there is only a certain distance between the valve parts (valve) in the male and female joints to the butt joint, so that the male and female joints are completely detached. There is still a little fluid left, and it is difficult to avoid the situation where there is no fluid dripping out of the interface.

The main purpose of the present invention is to provide a fluid connector, which is used for docking and/or separation of an upstream fluid delivery path and a downstream receiving path, the fluid connector comprising two male joints and a female joint;

The male connector includes:

A male connector body has a channel hole in its center, and one end of the channel hole is provided with a push piece, the push piece has a push tube, and the push tube has a central hole in communication with the channel hole, One end of the central hole with a reduced diameter is provided with a section of a male valve hole, and the end of the central hole of the section of the male valve hole is formed with a stop end surface;

A valve member is installed in the central hole of the push pipe, and a plugging head is formed relative to the section of the male valve hole. The opposite end of the plugging head is formed with a core hole communicating with the central hole relative to the passage hole. A stop ring is formed on the outside of the core hole opposite to the stop end surface, one end of the stop ring rests on the stop end surface, and the other end forms a displacement space between the center hole and the passage hole, and the ring The body surface and the radial interior are provided with more than one through hole connecting the core hole and the blocking end face;

A stuffing member, which is arranged on the stuffing head, is a soft rubber elastic body with an outer diameter slightly larger than the aperture of the male valve hole of the section. Elastomeric sealing surfaces for sexual contact;

A valve compression spring, which is fastened in the central hole of the pushing member and located on the displacement space at one end of the stop ring of the valve member, one end is supported on the hole wall of the passage hole, and the other end is elastic Push the stop ring, so that the elastic sealing surface of the packing piece on the packing head has a normal surface Seal the male valve hole of this section;

The female connector includes:

A female connector body has an assembly hole in its center. One end of the assembly hole has a reduced diameter. Corresponding to the outer diameter of the push tube of the push piece of the male connector, a section of guide hole is formed. The hole wall has a concave ring groove, and an O-ring seal is arranged on the concave ring groove;

A sliding sleeve, one end of a set of holes in the sleeve body has a reduced diameter, a section of female valve hole is formed corresponding to the male valve hole of the male joint, and the radial direction of the sleeve body is formed with an outer convex ring matching the assembly hole , one end of the outer convex ring, the outer peripheral surface and the front end of the female valve hole of this section are respectively formed with a section of the sleeve surface that matches the guide hole of this section and a push-stop end face that can be pushed by the push-up tube, The socket surface is in contact with the O-ring seal to form a seal;

A valve body mandrel is fastened in the assembly hole and has a pipe body, one end of the pipe body forms a core rod extending into the sleeve hole of the sliding sleeve, and the other end has a The fixing part at the other end of the assembly hole, a sliding space is formed between the fixing part and the outer convex ring of the sliding sleeve, and there is a pipe hole in the pipe body, and more than one perforation is set on the pipe wall and the sliding sleeve is connected. The sleeve holes communicate with each other, and one end of the core rod in the sleeve hole expands the rod diameter, and a valve plug is formed relative to the section of the female valve hole;

A plug door piece, which is arranged on the valve plug head, is a soft rubber elastic body with an outer diameter slightly larger than the hole diameter of the female valve hole of the section. elastic sealing surface;

A sliding sleeve compression spring is arranged in the assembly hole, located on the sliding space, one end is supported on the fixed part of the valve body core rod, and the other end elastically pushes the outer convex ring of the sliding sleeve to make the sliding sleeve The socket surface of the sleeve is kept in contact with the O-ring seal on the section of the guide hole to form a seal, and Make this section of the female valve hole normally closed by the elastic sealing surface of the plug door;

When the upstream fluid under pressure, through the conveying path, wants to be connected to the downstream receiving path through the fluid connector, it is only necessary to assemble the male connector and the female connector on the conveying path and the receiving path respectively; Before the joint is docked with the female joint, since the section of the male valve hole of the male joint is sealed by the plug on the valve piece, the socket surface and the section of the female valve hole on the sliding sleeve of the female joint are sealed by the O-shaped section. The ring seal and the plug door are closed, so that the fluid on the conveying path and the fluid that may exist on the receiving path are controlled by the male joint and the female joint to prevent leakage or leakage; the male joint and the When the female connector starts to be connected, the sliding action of the pushing tube of the pushing piece on the push-stop end face of the sliding sleeve pushes the sliding sleeve into the assembly hole, which can make the section of the female valve of the sliding sleeve move. In the process of the hole leaving the plug door, the valve plug at the front end of the core rod of the valve body mandrel squeezes the valve to move in the direction of the passage hole, so that the O-ring seal is exchanged to the pusher The surface of the pipe is sealed, and the male valve hole of this section is sealed by the packing piece and the plug door piece at the same time, so that there is no fluid leakage or extravasation path during the docking process; the male joint and the female joint are docked. At the stage, the push tube is maintained in the state of being sealed by the O-ring seal, and continues to push the sliding sleeve into the assembly hole, and the male valve hole of this section is completely separated from the packing member and the plug door member. Acting, the core hole of the valve member and the tube hole of the valve body core rod can communicate with each other through the through hole and the through hole, so that the upstream fluid is transported to the downstream; on the contrary, the butt of the male joint and the female joint is reversed When the action leaves, the valve compression spring pushes back the valve member and the sliding sleeve compression spring pushes back the sliding sleeve, so that the separation process and/or the separation can be completed, and there will be no fluid leakage, leakage or outflow;

The overall structure of the male connector and the female connector, by the large area of the packing piece contacting the section of the male valve hole, produces a long-distance surface sealing effect, and cooperates with the large area of the plug door piece to contact the surface of the section of the female valve hole. The hole sealing effect can be exchanged immediately when the section of the female valve hole leaves the plug door. A tightness is formed between the male valve hole of this section and the plug door member, or, during the process of returning the female valve hole to the plug door member, the male valve hole of this section can be blocked by the plug door member and the plugging member. In the closed state at the same time, the continuous and uninterrupted exchange is caused by the return action of the plug to close the section of the male valve hole; Both stages have the benefit of preventing fluid leakage, extravasation or leakage.

Another object of the present invention is to provide a fluid connector, wherein one end of the passage hole of the male joint body is provided with an inner thread hole, and the pusher body is provided with a section of outer thread opposite to the inner thread hole. , so that the outer thread of the ejector can be screwed on the inner threaded hole of the male joint body, and the valve compression spring can be easily installed on the displacement space of the valve in the center hole of the ejector.

Another object of the present invention is to provide a fluid connector, wherein the length of the hole of the male valve hole is 0.5 to 1.5 times the radius of the hole, and the elastic sealing surface of the packing member contacts the male valve of the section. The sealing area of the hole is 1/2 to 1 of the hole wall area of the male valve hole of this section; so that when the male connector and the female connector are connected or separated from the operation, the packing piece is used to seal the large area and long distance. A section of the male valve hole can enable the packing piece and the plug door piece to be simultaneously positioned on the section of the male valve hole to perform an uninterrupted exchange to close the male and female valve holes.

Another object of the present invention is to provide a fluid connector, wherein the plug head of the valve member has a cylindrical body in a stepped shape, the body of the cylinder is formed with at least one annular groove, and the valve member, It is placed in the molding die, and on the surface of the cylindrical body, overmolding the packing piece, by means of the packing piece plastic clips into the ring groove, so that the packing piece is tightly coupled to the packing head and does not come off .

Another object of the present invention is to provide a fluid connector, wherein the paragraph The hole length of the female valve hole is 0.5 to 1.5 times the diameter of the hole, and the sealing area of the elastic sealing surface of the plug door contacting the female valve hole of this section is 1 of the hole wall area of the female valve hole of this section. /2 to 1; so that when the male connector and the female connector are connected or separated, the plug door can be in contact with the male valve at the same time due to the large area and long distance of the plug door fitting the female valve hole. The shape of the valve hole and the mother valve hole is completed to leave the mother valve hole or complete the return to the mother valve hole, completely blocking the possibility of fluid extravasation.

Another object of the present invention is to provide a fluid connector, wherein the valve plug of the valve body core rod has a cylindrical convex column in a step shape, and the body of the cylindrical convex column is formed with at least one annular concave groove, and the valve body mandrel is placed in the molding die, and on the surface of the cylindrical convex, overmolding the plug door piece, by the plug door piece plastic does not enter the annular groove, So that the plug door member is tightly fixed on the valve plug head without loosening.

Another object of the present invention is to provide a fluid connector, wherein a neck is formed between the packing head of the valve and the stop ring, and a surface of the neck is recessed with a ring groove, the ring An O-shaped sealing member is arranged on the groove, and the hole length of the male valve hole extends through the O-shaped sealing member, so that the O-shaped sealing member can be used before and after the butt joint of the male connector and the female connector. The hole of the male valve is sealed, which assists in improving the ability of the packing member to close the hole of the male valve and resist the leakage of high-pressure fluid.

Another object of the present invention is to provide a fluid connector, wherein the valve plug head of the valve body core rod is provided with the plug door member, and the body surface of the valve plug head at the inner edge end of the plug door member is recessed. A concave ring groove is provided with an O-shaped sealing ring member, and the hole length of the female valve hole of this section extends through the O-shaped sealing ring member, so that the male connector and the female connector are in contact with each other. Before and after the docking, the O-ring seal can be sealed on the female valve hole, which can help lift the plug door to seal the female valve. The valve orifice resists the leakage of high pressure fluids.

X ₁ : conveying path

X ₂ : Receive path

E ₁ : Flow direction (upstream)

E ₂ : Flow direction (downstream)

1: Fluid Connector

10: Male connector

11: Male connector body

110: Channel hole

111: Internal thread hole

12: Push pieces

120: push tube

121: Center hole

122: Male valve hole

L ₁ , L ₁₀ : hole length

R ₁ : hole radius

123: Stop end face

124: External thread

13: Valves

130: stuffing head

130A: Cylinder

130B: Ring groove

131: Core hole

132: Stop ring

133: Displacement space

134: Through hole

135: Neck

136: Ring groove

137: O-shaped stopper

14: Padding

140: Elastic stopper surface

15: Valve compression spring

20: Female connector

21: Female connector body

210: Assembly holes

211: Pilot hole

212: concave ring groove

213: O-ring seal

22: Sliding sleeve

220: Set of holes

221: Female valve hole

L ₂ , L ₂₀ : hole length

R ₂ : hole radius

222: Outer convex ring

223: Socket face

224: Push switch end face

23: Valve body mandrel

230: Tube body

231: core rod

232: Fixed part

232A: C-shaped buckle

233: Slip Space

234: Tube hole

235: Perforation

236: Valve plug

236A: Cylindrical convex column

236B: Annular groove

237: concave ring groove

238: O-ring seal

24: Plug door pieces

240: elastic sealing surface

25: Sliding sleeve compression spring

Figure 1 is a perspective view of the appearance of the present invention

Figure 2 is an exploded view of the structure of the male joint of the present invention

Figure 3 is a sectional view of the structure of the male joint of the present invention

Figure 4 is an exploded view of the structure of the female connector of the present invention

Figure 5 is a sectional view of the structure of the female connector of the present invention

Figure 6 is a cross-sectional view of the structure of the male and female joints of the present invention before butting

Figure 7 is a structural cross-sectional view of the butt joint process of the male and female joints of the present invention

Figure 8 is a structural cross-sectional view of the male and female joints of the present invention when the butt joint is completed

FIG. 9 is an exploded view of another embodiment of the male connector of the present invention.

FIG. 10 is a structural cross-sectional view of another embodiment of the male connector of the present invention

Fig. 11 is a structural exploded view of another embodiment of the female connector of the present invention

Figure 12 is a structural cross-sectional view of another embodiment of the female connector of the present invention

Figure 13 is a cross-sectional view of the structure of another embodiment of the male and female connectors of the present invention before butting

In order to achieve the above-mentioned purpose, the present invention specifically cites preferred embodiments, and cooperates with the accompanying drawings, and is described in detail as follows:

A fluid connector, which is suitable for the injection head and the material receiving head of the injection system, sends the upstream fluid under pressure to the downstream through the connector for reception; it is also suitable for the connection of two fluid conveying pipes, and the fluid under pressure is sent to the downstream. The upstream fluid is sent to the downstream. In this specification and the scope of the accompanying patent application, "upstream" and "downstream" are similar terms, referring to the flow direction of the fluid through the fluid connector under pressure, and this flow direction, In Figures 6, ₇ and 8, they are indicated by arrows E1 and _E2 . Furthermore, the fluid connector is used on different objects, and it can be installed on different objects only by modifying the assembly structure, and the docking type is not limited to plugging, snapping or screwing; The connector is used in the material injection system (in Figures 6, 7, and 8, the material injection head and the material connection head are represented by imaginary lines, and will not be repeated) as an example, and the present invention will be described in detail:

A fluid connector 1, as shown in Figures 1 and 6, is used for the connection and/or separation of an upstream fluid delivery path X1 and _a downstream receiving path X2 under pressure. The fluid connector ₁ , as shown in Figure 1, includes two male joints 10 and a female connector 20;

The male connector 10, as shown in Figures 2 and 3, includes:

A male connector body 11 has a channel hole 110 in its center, and one end of the channel hole 110 is provided with a pusher 12 , the pusher 12 has a pusher tube 120 , and the pusher tube 120 has a The central hole 121 communicated with the passage hole 110, one end of the central hole 121 is provided with a section of male valve hole 122 with a reduced diameter, and the end of the central hole 121 of the section of the male valve hole 122 is formed with a stop end surface 123;

A valve member 13 is installed in the central hole 121 of the push pipe 120, and a plugging head 130 is formed relative to the section of the male valve hole 122. The inside of the opposite end of the plugging head 130 is opposite to the passage hole 110, forming a communication The core hole 131 of the central hole 121 has a blocking ring 132 formed on the outside of the core hole 131 opposite to the blocking end surface 123 . A displacement space is formed between the inside of 121 and the passage hole 110, and the surface of the ring body and the radially inner part are open. More than one through hole 134 connecting the core hole 131 and the blocking end surface 123 is provided;

A stuffing member 14, which is arranged on the stuffing head 130, is a rubber-plastic soft elastic body with an outer diameter slightly larger than the diameter of the male valve hole 122. The surface is opposite to the hole wall area of the male valve hole 122. A section of elastic sealing surface that is in surface contact with the section of the male valve hole 122;

A valve compression spring 15 is arranged in the central hole 121 of the pushing member 12 and is located on the displacement space 133 at one end of the stop ring 132 of the valve member 13 , and one end is supported on the passage hole 110 On the end face of the enlarged diameter hole wall, the other end elastically pushes the stop ring 132, so that the elastic sealing surface 140 of the packing member 14 on the packing head 130 normally seals the male valve hole 122 of this section;

The female connector 20, as shown in Figures 4 and 5, includes:

A female connector body 21 is provided with an assembly hole 210 in its center, and one end of the assembly hole 210 has a reduced diameter, corresponding to the outer diameter of the push tube 120 of the push member 12 of the male connector 10 (see FIG. 3 ), forming a A section of guide hole 211, the hole wall of this section of guide hole 211 has a concave ring groove 212, and an O-ring seal 213 is arranged on the concave ring groove 212;

A sliding sleeve 22, one end of a set of holes 220 in the sleeve is reduced in diameter, corresponding to the male valve hole 122 of the male connector 10 (matching FIG. 3), a section of female valve hole 221 is formed, and the radial direction of the sleeve body is parallel to An outer convex ring 222 that matches the assembly hole 210 is formed. One end of the outer convex ring 222, the outer peripheral surface and the front end of the female valve hole 221 are respectively formed with a socket surface 223 that matches the guide hole 221. and has a push-stop end face 224 that can be pushed (inwardly moved) by the push-up tube 120, and the socket surface 223 is connected to the O-ring The sealing member 213 contacts to form a seal;

A valve body mandrel 23 is fixed in the assembly hole 210 and has a pipe body 230 , one end of the pipe body 230 forms a core rod 231 extending into the sleeve hole 220 of the sliding sleeve 22 , and the other end The periphery has a fixing portion 232 fixed on the other end of the assembly hole 210 (preferably, the fixing portion 232 is fixed on the hole wall of the assembly hole 210 using a C-shaped buckle 232A). The fixing portion 232 is connected to the sliding A sliding space 233 is formed between the outer convex rings 222 of the sleeve 22, and a pipe hole 234 is formed in the pipe body 230, and more than one through hole 235 is provided on the pipe wall to communicate with the sleeve hole 220 of the sliding sleeve 22, In addition, one end of the core rod 231 in the sleeve hole 220 has an enlarged rod diameter, and a valve plug 236 is formed relative to the section of the female valve hole 221;

A plug door member 24, disposed on the valve plug head 236, is a soft elastic body made of rubber and plastic material with an outer diameter slightly larger than the diameter of the female valve hole 221 of the section. This section of the female valve hole 221 is in surface contact with the elastic sealing surface 240;

A sliding sleeve compression spring 25 is arranged in the assembly hole 210 and located on the sliding space 233 , one end is supported on the fixing part 232 of the valve body core rod 23 , and the other end elastically pushes the outer part of the sliding sleeve 22 The convex ring 222 keeps the socket surface 223 of the sliding sleeve 22 on the guide hole 211 in contact with the O-ring seal 213 to form a seal, and makes the female valve hole 221 in this section normally blocked by the plug door The elastic sealing surface 240 of 24 is closed;

As shown in FIG. 6 , when the upstream fluid in the flow direction E ₁ under pressure, through the delivery path X ₁ , wants to be connected to the downstream receiving path X ₂ through the fluid connector 1 , only the male connector 10 and the female connector need to be 20 are assembled on the conveying path X ₁ and the receiving path X ₂ respectively; before the male connector 10 is docked with the female connector 20, because the section of the male valve hole 122 of the male connector 10 is filled with the valve member 13 14 is sealed, the socket surface 223 on the sliding sleeve 22 of the female connector 20 and the female valve hole 221 of this section are closed by the O-ring seal 213 and the plug door ₂₄ , which can make the conveying path X1. The fluid in the flow direction E ₁ and the fluid in the flow direction E ₂ that may exist on the receiving path X ₂ are both controlled by the male connector 10 and the female connector 20 to prevent leakage or leakage; as shown in FIGS. 6 and 7 , the male connector 10 and the female connector 20 start the docking and docking process, the pushing tube 120 of the pushing member 12 pushes the sliding sleeve 22 into the assembly hole 210 on the pushing end surface 224 of the sliding sleeve 22 and slides During the process of the section of the female valve hole 221 of the sliding sleeve 22 leaving the plug door member 24, the valve plug head 236 at the front end of the core rod 231 of the valve body core rod 23 (with the plug door member) 24) Squeeze the valve member 13 to displace in the direction of the passage hole 110, so that the O-ring seal 213 is exchanged to seal on the sliding surface of the push pipe 120, and the section of the male valve hole 122 is simultaneously filled by the The plug 14 and the plug door member 24 are tightly sealed (sealed), so that there is no fluid leakage or extravasation path during the docking process; as shown in Figures 7 and 8, the male connector 10 and the female connector 20 complete the docking stage , the push tube 120 is maintained in a state of being sealed by the O-ring seal 213 , and the sliding sleeve 22 continues to be pushed into the assembly hole 210 to the end, and the section of the male valve hole 122 is completely separated from the packing member 14 And the action of the plug door member 24, the core hole 131 of the valve member 13 and the tube hole 234 of the valve body core rod ₂₃ can communicate with each other through the through hole 134 and the through hole 235, so that the upstream fluid in the flow direction E1 Output to the downstream of the flow direction E ₂ ; on the contrary, corresponding to Figures 7 and 6, the butt joints of the male joint 10 and the female joint 20 move away in the opposite direction, and the valve compression spring 15 pushes back the valve member 13 and the sliding sleeve to compress The spring 25 pushes back the sliding sleeve 22, so that the separation process and/or the separation can be completed without fluid leakage, leakage or outflow;

As shown in FIGS. 3 and 5 , the overall structure of the male connector 10 and the female connector 20 is caused by the large area of the packing member 14 contacting the section of the male valve hole 122 to produce a long-distance surface sealing effect, which cooperates with the plug door member 24 The surface sealing effect of the section of the female valve hole 221 in contact with the large area, as shown in FIG. 7 , can be immediately exchanged when the section of the female valve hole 221 leaves the plug door member 24. The section of the male valve hole 122 and the plug door member 24 to form a seal, or, during the process of returning the female valve hole 221 to the plug door 24, the male valve hole 122 of the section can be closed by the plug door 24 and the plug 14 at the same time. As shown in Figure 7 and back to Figure 6, the continuous, uninterrupted exchange is caused by the return action of the packing member 14 to close the male valve hole 122; After docking, the process of leaving or after leaving, both stages can prevent fluid leakage, extravasation or leakage.

According to the above embodiment, as shown in FIGS. 2 and 3 , one end of the channel hole 110 of the male joint body 11 is provided with an inner threaded hole 111 , and the body of the pusher 12 is provided with a section of outer threaded hole 111 opposite to the inner threaded hole 111 . The thread 124 can be screwed and fixed on the inner threaded hole 111 of the male joint body 11 by the external thread 124 of the ejector 12, so that the valve compression spring 15 can be easily installed in the center hole 121 of the ejector 12. The valve member 13 is displaced on the space 133 .

According to the above embodiment, as shown in FIG. 3 , the hole length L ₁ of the male valve hole 122 is 0.5 to 1.5 times the hole radius R ₁ (ie, L ₁ =0.5~1.5R ₁ ), and the packing member The elastic sealing surface 140 of 14 contacts the sealing area of the male valve hole 122 of this section, which is 1/2 to 1 of the hole wall area (πxR ₁ xR ₁ xL ₁ ) of the male valve hole 122 of this section; 8. When the male connector 10 and the female connector 20 are docked or separated, the plugging member 14 seals the male valve hole 122 with a large area and a long distance, so that the plugging member 14 and the plug door member can be sealed. 24. The male and female valve holes 122 and 221 can be closed in a state of being simultaneously positioned on the male valve hole 122 of this section (as shown in FIG. 7 ), and the male and female valve holes 122 and 221 can be closed by exchange without interruption.

According to the above-mentioned embodiment, wherein, as shown in FIGS. 2 and 3 , the stuffing head 130 of the valve member 13 has a cylindrical body 130A in a stepped shape, and the body of the cylindrical body 130A is formed with at least one annular groove 130B, and the valve member 13. It is placed in a plastic injection molding mold (not shown in the figure), and the packing member 14 is overmolded on the surface of the cylindrical body 130A, and the packing member 14 is plastically snapped into the ring groove 130B, so that the The packing member 14 is tightly coupled to the packing head 130 so as not to retreat.

According to the above embodiment, as shown in FIGS. 4 and 5 , the hole length L ₂ of the female valve hole 221 of this section is 0.5 to 1.5 times the distance of the hole radius R ₂ (ie, L ₂ =0.5~1.5R ₂ ), and the The elastic sealing surface 240 of the plug door member 24 contacts the sealing area of the female valve hole 221 of this section, which is 1/2 to 1 of the hole wall area (πxR ₂ xR ₂ xL ₂ ) of the female valve hole 221 of this section; as shown in the figure 6, 7, 8, so that when the male connector 10 and the female connector 20 are docked or separated, the plug door member 24 is tightly closed to the section of the female valve hole 221 with a large area and a long distance, so that the plug door can be used for the plug door. The shape of the member 24 in contact with the male valve hole 122 and the female valve hole 221 at the same time (as shown in FIG. 7 ), completes leaving the female valve hole 221 or completes returning to the female valve hole 221, completely blocking the possibility of fluid extravasation.

According to the above embodiment, wherein, as shown in FIGS. 4 and 5 , the valve plug 236 of the valve body mandrel 23 has a cylindrical convex column 236A in a step shape, and the body of the cylindrical convex column 236 is formed with at least one annular groove The groove 236B, and the valve body mandrel 23, is placed in a plastic injection molding mold (not shown), and the plug door member 24 is overmolded on the surface of the cylindrical convex column 236, through the plug door The plastic of the piece 24 does not enter the annular groove 236B, so that the The plug door member 24 is tightly fixed on the valve plug head 236 and does not loosen.

According to the above embodiment, as shown in FIGS. 9 and 10 , a neck 135 is formed between the stuffing head 130 of the valve member 13 and the stop ring 132 , and a ring groove 136 is recessed on the surface of the neck 135 . An O-shaped sealing member 137 is provided on the ring groove 136, and the hole length L10 of the male valve hole 122 extends through the O-shaped sealing member 137, as shown in FIG. 13, so that the male connector ₁₀ and the female connector are connected. The O-shaped sealing member 137 can be used to seal the male valve hole 122 before and after the docking of the 20 , which assists in enhancing the ability of the packing member 14 to close the male valve hole 122 against leakage of high-pressure fluid.

According to the above embodiment, wherein, as shown in Figures 11 and 12, the valve plug 236 of the valve body mandrel 23 is provided with the plug door 24, and the body surface of the valve plug 236 at the inner edge of the plug door 24 is concave. A concave ring groove 237 is provided, an O-shaped sealing ring member 238 is arranged on the concave ring groove 237, and the hole length L ₂₀ of the female valve hole 221 of this section extends through the O-shaped sealing ring member 238, as shown in the figure 13, so that the O-ring seal 238 can be sealed on the female valve hole 221 before and after the butting of the male connector 10 and the female connector 20, so as to help lift the plug door 24 to close the female valve hole 221 against high pressure Fluid leakage capability.

The above description is only illustrative rather than restrictive to the present invention, and those of ordinary skill in the art will understand that many modifications, changes or the like can be made without departing from the spirit and scope defined by the accompanying description. effect, but will fall within the protection scope of the present invention.

X ₁ : conveying path

X ₂ : Receive path

E ₁ : Flow direction (upstream)

E ₂ : Flow direction (downstream)

1: Fluid Connector

10: Male connector

110: Channel hole

12: Push pieces

120: push tube

122: Male valve hole

13: Valves

14: Padding

15: Valve compression spring

20: Female connector

210: Assembly holes

213: O-ring seal

22: Sliding sleeve

221: Female valve hole

223: Socket face

224: Push switch end face

23: Valve body mandrel

236: Valve plug

24: Plug door pieces

25: Sliding sleeve compression spring

Claims (8)

A fluid connector is used for the docking and/or separation of an upstream fluid conveying path and a downstream receiving path, the fluid connector comprising two male joints and a female joint; The male connector includes: A male connector body has a channel hole in its center, and one end of the channel hole is provided with a push piece, the push piece has a push tube, and the push tube has a central hole in communication with the channel hole, One end of the central hole with a reduced diameter is provided with a section of male valve hole, and the end of the central hole of the section of the male valve hole is formed with a stop end surface; A valve member is installed in the central hole of the push pipe, and a plugging head is formed relative to the section of the male valve hole. The opposite end of the plugging head is formed with a core hole communicating with the central hole relative to the passage hole. A stop ring is formed on the outside of the core hole opposite to the stop end surface, one end of the stop ring rests on the stop end surface, and the other end forms a displacement space between the center hole and the passage hole, and the ring The body surface and the radial interior are provided with more than one through hole connecting the core hole and the blocking end face; A stuffing member, which is arranged on the stuffing head, is a soft rubber elastic body with an outer diameter slightly larger than the aperture of the male valve hole of the section. Elastomeric sealing surfaces for sexual contact; A valve compression spring, which is fastened in the central hole of the pushing member and located on the displacement space at one end of the stop ring of the valve member, one end is supported on the hole wall of the passage hole, and the other end is elastic Push the stop ring so that the elastic sealing surface of the packing piece on the packing head normally seals the male valve hole of this section; The female connector includes: A female connector body has an assembly hole in its center. One end of the assembly hole has a reduced diameter. Corresponding to the outer diameter of the push tube of the push piece of the male connector, a section of guide hole is formed. The hole wall has a concave ring groove, and an O-ring seal is arranged on the concave ring groove; A sliding sleeve, one end of a set of holes in the sleeve body has a reduced diameter, a section of female valve hole is formed corresponding to the male valve hole of the male connector, and the radial direction of the sleeve body is formed with an outer convex ring matching the assembly hole , one end of the outer convex ring, the outer peripheral surface and the front end of the female valve hole of this section are respectively formed with a section of the socket surface that matches the section of the guide hole and a push-stop end surface that can be pushed by the push-up tube, The socket surface is in contact with the O-ring seal to form a seal; A valve body mandrel is fastened in the assembly hole and has a pipe body, one end of the pipe body forms a core rod extending into the sleeve hole of the sliding sleeve, and the other end has a The fixing part at the other end of the assembly hole, a sliding space is formed between the fixing part and the outer convex ring of the sliding sleeve, and there is a pipe hole in the pipe body, and more than one perforation is set on the pipe wall and the sliding sleeve is connected. The sleeve holes communicate with each other, and one end of the core rod in the sleeve hole expands the rod diameter, and a valve plug is formed relative to the section of the female valve hole; A plug door piece, which is arranged on the valve plug head, is a soft rubber elastic body with an outer diameter slightly larger than the hole diameter of the female valve hole of the section. elastic sealing surface; A sliding sleeve compression spring is arranged in the assembly hole, located on the sliding space, one end is supported on the fixed part of the valve body core rod, and the other end elastically pushes the outer convex ring of the sliding sleeve to make the sliding sleeve The socket surface of the sleeve is kept in contact with the O-ring seal on the section of the guide hole to form a seal, and the section of the female valve hole is normally closed by the elastic sealing surface of the plug door piece. The fluid connector according to claim 1, wherein the male connector body One end of the channel hole is provided with an inner thread hole, and the body of the pusher is provided with a section of outer thread opposite to the inner thread hole. The fluid connector according to item 1 of the scope of the application, wherein the length of the hole of the male valve hole is 0.5 to 1.5 times the radius of the hole, and the elastic sealing surface of the plug contacts the male valve hole of the section The sealing area is 1/2 to 1 of the hole wall area of the male valve hole of this section. The fluid connector according to claim 1, wherein the plug head of the valve member has a cylindrical body with a stepped shape, the body of the cylinder is formed with at least one annular groove, and the valve member is Placed in a molding die and overmolded the plug on the surface of the cylinder. The fluid connector according to item 1 of the scope of the application, wherein the length of the hole of the female valve hole is 0.5 to 1.5 times the radius of the hole, and the elastic sealing surface of the plug door contacts the female valve of the section The sealing area of the hole is 1/2 to 1 of the hole wall area of the female valve hole of this section. The fluid connector according to claim 1, wherein the valve plug of the valve body mandrel has a cylindrical convex column in a stepped shape, and the body of the cylindrical convex column is formed with at least one annular groove , and the valve body core rod is placed in the molding die, and the plug door piece is overmolded on the surface of the cylindrical convex cylinder. The fluid connector according to claim 1, wherein a neck is formed between the plug head of the valve and the stop ring, and a surface of the neck is recessed with a ring groove, the ring groove An O-shaped sealing member is arranged on it, and the length of the hole of the male valve hole extends through the O-shaped sealing member. According to the fluid connector described in item 1 of the scope of the patent application, the valve plug head of the valve body core rod is provided with the plug door member, and the body surface of the valve plug head at the inner edge end of the plug door member is recessed. A concave ring groove is provided on the concave ring groove with an O-shaped tight ring piece, and the hole length of the female valve hole of this section extends through the O-shaped tight ring piece.

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