TWM612541U - Fluid connector - Google Patents

Abstract

A fluid connector includes a male connector and a female connector. The plugging member contacts the male valve hole in a large area to produce a long-distance surface sealing effect, and cooperates with the plug member to contact the female valve hole in a large area. The surface sealing effect of the section of the female valve hole can be exchanged immediately when the section of the female valve hole leaves the plug member. The section of the male valve hole and the plug member form a seal, or the section of the female valve hole returns to the In the process of plugging, the male valve hole of this section can be closed by the plugging member and the plugging member at the same time, continuous and uninterrupted exchange. The return action of the plugging member can close the male valve hole of this section. ; To achieve the benefits of preventing fluid leakage, leakage or leakage before the male and female joints are docked, during the docking process, after the docking, leaving the process or after leaving.

Description

Fluid connector

This creation is about a kind of fluid connector before and after the butting of male and female joints and the process, which is not easy to leak, leak or seep.

Press, the fluid from the upstream of the pressurizing end is transported to the downstream of the low-pressure end. Connectors are often installed on the transport path (such as the transport pipe) and the receiving path (such as the receiving pipe), so that the transport path and the receiving path can be selectively connected or connected. disconnect.

Connectors on the market generally include a male connector and a female connector. Before and after the docking or the process, usually must be done in the mode of shutting off the upstream fluid output, otherwise the mating interface of the male and female connectors will discharge fluid; although the male and female connectors When the connector wants to leave, the upstream switch valve can be used to close the fluid delivery. Only the remaining fluid in the delivery path (pipeline) or receiving path will still leak from the male connector and/or female connector interface, polluting or affecting the environment .

Traditionally used, such as TWI427231 and TWI463089 Taiwan Invention Patent, is a connector or coupler, both of which are equipped with valves in the male and female joints. When the male and female joints are connected, the valve is opened to connect the upstream and downstream fluids, and vice versa, the valve is closed. , Limiting the upstream fluid output; although it can omit the use of upstream switching valves, but there is a certain distance between the valve parts (valves) in the male and female joints and the counter joint, so that the male and female joints are completely separated from each other. There is still a little fluid remaining, and it is difficult to avoid the situation that no fluid drips out of the interface.

The main purpose of this creation is to provide a fluid connector for docking and/or leaving the upstream fluid conveying path with the downstream receiving path. The fluid connector includes two male connectors and a female connector;

The male connector includes:

A male connector body with a channel hole in the center, one end of the channel hole is provided with a pusher, the pusher has a push tube, and the push tube has a central hole communicating with the channel hole, A section of the male valve hole is provided with a reduced diameter at one end of the central hole, and the central hole end of the section of the male valve hole is formed with a blocking end surface;

A valve element is installed in the center hole of the push tube, a plugging head is formed relative to the section of the male valve hole, and a core hole communicating with the central hole is formed inside the different end of the plugging head relative to the passage hole, A stop ring is formed on the outside of the core hole relative to the stop end surface. One end of the stop ring abuts on the stop end surface, and the other end forms a displacement space between the center hole and the passage hole, and the ring More than one through hole connecting the core hole and the blocking end surface is opened on the body surface and the radial inner portion;

A stuffing piece, arranged on the stuffing head, is a soft rubber elastic body with an outer diameter slightly larger than the diameter of the male valve hole of the section, and the surface is opposite to the hole wall area of the section of the male valve hole, and has a section with the hole surface of the section of the male valve hole. Elastic sealing surface for sexual contact;

A valve compression spring is arranged in the center hole of the pushing member, and is located on the displacement space at one end of the stop ring of the valve member, one end is supported on the wall of the passage hole, and the other end is elastic Push the stop ring to make the elastic sealing surface of the packing piece on the packing head to seal the male valve hole of the section in a normal state;

The female connector includes:

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

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

A valve body core rod is set in the assembly hole and has a tube body. One end of the tube body forms a core rod extending into the sleeve hole of the sliding sleeve, and the other end has a fixedly mounted on the outer periphery of the sliding sleeve. Assemble the fixing part at the other end of the 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 and the sliding sleeve are provided on the pipe wall. The sleeve hole is communicated, and one end of the core rod in the sleeve hole has an enlarged rod diameter, and a valve plug is formed relative to the section of the female valve hole;

A plug member, which is arranged on the valve plug head, is a soft rubber elastic body with an outer diameter slightly larger than the diameter of the female valve hole of the section. The surface is opposite to the female valve hole of the section, and has a section that is in surface contact with the female valve hole of the section. The elastic close surface;

A sliding sleeve compression spring is arranged in the assembly hole and 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 The sleeve surface of the sleeve is maintained on the guide hole of the section to be in contact with the O-ring seal to form a hermetic seal, and the female valve hole of the section is normally closed by the elastic sealing surface of the plug;

When the upstream fluid under pressure is to be connected to the downstream receiving path through the fluid connector via the conveying path, 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 butted with the female joint, since the male valve hole of the male joint is sealed by the plug on the valve member, the sleeve surface and the female valve hole of the female joint are sealed by the O-shaped The ring seal and the stopper are closed, so that the fluid on the delivery path and the fluid that may exist on the receiving path are controlled by the male connector and the female connector to prevent leakage or leakage; When the female joint starts to be butted, the pushing tube of the pushing piece pushes the sliding sleeve into the assembly hole on the push end surface of the sliding sleeve. When the hole leaves the plug member, the valve plug head at the front end of the core rod of the valve body core rod squeezes the valve member to move in the direction of the channel 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 the section is tightly sealed by the plug and the plug at the same time, so that there is no fluid leakage or leakage path during the docking process; the male connector and the female connector complete the docking At the stage, the push tube is maintained in a state of being sealed by the O-ring seal, and the sliding sleeve is continued to be pushed into the assembly hole, and the section of the male valve hole completely leaves the plug and the plug. Action, 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 perforation, so that the upstream fluid is sent to the downstream; otherwise, the butt of the male connector and the female connector 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 exit process and/or exit can be completed without fluid leakage, leakage or outflow;

The overall structure of the male connector and the female connector, through the large-area contact of the plugging piece with the section of the male valve hole, a long-distance surface sealing effect is produced, and the plug piece is in large-area contact with the section of the female valve hole. The sealing effect can be exchanged immediately when the female valve hole of the section leaves the plug member to form a seal tightly between the section of the male valve hole and the plug member, or the section of the female valve hole returns to the plug member. In the process of fitting, the male valve hole of this section can be closed by the plug member and the plugging member at the same time, continuous and uninterrupted exchange can be closed by the returning action of the plugging member; Before the male and female connectors are butted, during the butting process, after the butting, leaving the process or after leaving, achieving the benefits of preventing fluid leakage, leakage or leakage.

The second purpose of this creation is to provide a fluid connector, wherein one end of the channel hole of the male connector body is provided with an internal threaded hole, and the pusher body is provided with a section of external thread relative to the internal threaded hole , So that the external thread of the pushing piece can be screwed on the internal threaded hole of the male connector body, and the valve compression spring can be easily installed on the displacement space of the valve piece in the center hole of the pushing piece.

Another purpose of this creation 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 distance of the hole radius, and the elastic sealing surface of the plug is in contact with the male valve. The sealing area of the hole is 1/2 to 1 of the area of the hole wall of the male valve hole in the section; when the male connector and the female connector are connected or separated, the packing piece is used to seal the large area and long distance The section of the male valve hole enables the stuffing member and the plug member to be simultaneously positioned on the section of the male valve hole, and the male and female valve holes can be exchanged and closed without interruption.

Another purpose of this creation is to provide a fluid connector, wherein the plug head of the valve element has a cylindrical body with a stepped shape, the body of the cylinder is formed with at least one ring groove, and the valve element, It is placed in a shaping mold and overmolded the packing piece on the surface of the cylinder, and the packing piece is inserted into the ring groove by the packing piece plastic, so that the packing piece is tightly combined with the packing head and does not come off .

Another purpose of this creation is to provide a fluid connector, wherein the length of the hole of the female valve hole is 0.5 to 1.5 times the distance of the hole radius, and the elastic tightness of the plug The surface contact area of the female valve hole of the section is 1/2 to 1 of the hole wall area of the section of the female valve hole; when the male connector and the female connector are connected to or separated from each other, use the plug door A large area and long distance close to the female valve hole of the section, the plug can contact the male valve hole and the female valve hole at the same time to complete leaving the female valve hole or return to the female valve hole, Completely block the possibility of fluid extravasation.

The second purpose of this creation is to provide a fluid connector, in which the valve plug of the valve body core rod has a round convex column with a hierarchical shape, and the body of the round convex column is formed with at least one annular concave The groove and the valve core rod are placed in the molding mold, and the plug is overmolded on the surface of the convex cylinder, and the plug does not enter the annular concave groove by the plastic of the plug. In order to make the plug member tightly fixed on the valve plug head and not loose.

The second purpose of this creation is to provide a fluid connector, in which a neck is formed between the stuffing head of the valve and the stop ring, the surface of the neck is recessed with a ring groove, and the ring The groove is provided with an O-shaped sealing member, and the length of the hole 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 of the male connector and the female connector. The upper seal of the male valve hole assists in improving the ability of the stuffing member to close the male valve hole against the leakage of high-pressure fluid.

The second and other purpose of this creation is to provide a fluid connector, wherein the valve plug of the valve body core rod is provided with the valve plug, and the inner edge of the valve plug has a concave surface on the body of the valve plug. There is a concave ring groove, the concave ring groove is provided with an O-shaped tight ring member, and the length of the hole of the female valve hole extends through the O-shaped tight ring member, so that the male connector and the female connector Before and after the docking, the O-shaped tight ring can be sealed on the female valve hole to assist in improving the ability of the plug door to close the female valve hole to resist high-pressure fluid leakage.

X ₁ : Conveying path

X ₂ : Receiving path

E ₁ : Flow direction (upstream)

E ₂ : Flow direction (downstream)

1: fluid connector

10: Male connector

11: Male connector body

110: Passage hole

111: Internal threaded hole

12: Pusher

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: Valve

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 seal

14: stuffing pieces

140: Elastic sealing surface

15: Valve compression spring

20: Female connector

21: Female connector body

210: Assembly hole

211: Guiding Hole

212: concave ring groove

213: O-ring seal

22: Sliding sleeve

220: set hole

221: Female valve hole

L ₂ , L ₂₀ : hole length

R ₂ : hole radius

222: Outer convex ring

223: Socket Face

224: Push button end face

23: Valve body core rod

230: tube body

231: Mandrel

232: Fixed part

232A: C-shaped buckle

233: Sliding Space

234: pipe hole

235: Piercing

236: Valve plug

236A: Round convex column

236B: Annular concave groove

237: Concave Ring Groove

238: O-shaped dense ring

24: Stopper

240: elastic close surface

25: Sliding sleeve compression spring

Figure 1 is a three-dimensional view of the appearance of this creation

Figure 2 is an exploded view of the male joint structure of the original creation

Figure 3 is a cross-sectional view of the male joint structure of the original creation

Figure 4 is an exploded view of the female joint structure of the original creation

Figure 5 is a sectional view of the female joint structure of the original creation

Figure 6 is a cross-sectional view of the structure before the male and female joints of the original creation are butted

Figure 7 is a structural cross-sectional view of the butt joint process of male and female joints in this creation

Figure 8 is a structural cross-sectional view of this creation when the male and female connectors are butt-connected

Figure 9 is a structural exploded view of another embodiment of the creative male connector

Figure 10 is a structural cross-sectional view of another embodiment of the creative male connector

Figure 11 is a structural exploded view of another embodiment of the female joint of the present invention

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

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

In order to achieve the above-mentioned purpose, this creation specially presents the preferred embodiments, and the detailed description is as follows in conjunction with the attached drawings:

A fluid connector suitable for the injection head and receiving head of the injection system. The upstream fluid under pressure is sent to the downstream to receive through the connector; it can also be applied to the connection of two fluid conveying pipes to connect the fluid under pressure. The upstream fluid is transported to the downstream. In the scope of this specification and the accompanying patent application, "upstream" and "downstream" are similar terms, referring to the direction of fluid flow through the fluid connector under pressure, and this flow direction, In Figures 6, 7, and 8, they are represented by arrows E ₁ and E ₂ . Moreover, the fluid connector is used on different objects, and only the assembly structure is modified to be installed on different objects, and the docking type is not limited to plug, buckle or screw lock connection; below, fluid The connector adopts the plug-in type and is used in the injection system (in Figures 6, 7, and 8, the injection head and the material receiving head are represented by imaginary lines, which will not be repeated) as an embodiment, and the creation is described in detail:

A fluid connector 1, as shown in Figures 1 and 6, is used to _{connect/or leave the upstream fluid conveying path X 1} and the downstream receiving path X ₂ 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. One end of the channel hole 110 is provided with a pusher 12. The pusher 12 has a push tube 120. 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 male valve hole 122 is formed with a blocking end surface 123;

A valve member 13 is installed in the central hole 121 of the push tube 120, a plugging head 130 is formed relative to the section of the male valve hole 122, and the inside of the opposite end of the plugging head 130 is connected to the passage hole 110. In the core hole 131 of the central hole 121, a stop ring 132 is formed on the outside of the core hole 131 relative to the stop end surface 123. A displacement space is formed in 121 and the passage hole 110, and more than one through hole 134 connecting the core hole 131 and the blocking end surface 123 is opened on the surface and radial inside of the ring body;

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

A valve compression spring 15 is set 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 by the passage hole 110 On the end surface 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 section of the male valve hole 122;

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 the center. One end of the assembly hole 210 has a reduced diameter, corresponding to the outer diameter of the pushing tube 120 of the pushing member 12 of the male connector 10 (cooperating with FIG. 3), and is formed with A section of the guide hole 211, the wall of the section of the guide hole 211 has a concave ring groove 212, and an O-ring seal 213 is provided on the concave ring groove 212;

A sliding sleeve 22. One end of the sleeve hole 220 in the sleeve body has a reduced aperture. Corresponding to the male valve hole 122 of the male connector 10 (matching FIG. 3), a female valve hole 221 is formed. An outer convex ring 222 matching the assembling 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 section of sleeve surface 223 matching the section of guide hole 221 And having a pusher end surface 224 that can be pushed (inwardly moved) by the pusher tube 120, and the sleeve surface 223 contacts the O-ring seal 213 to form a hermetic seal;

A valve core rod 23 is set in the assembly hole 210 and has a tube body 230. One end of the tube 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 at 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), and the fixing portion 232 and the sliding A sliding space 233 is formed between the outer convex rings 222 of the sleeve 22, and there is a pipe hole 234 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 24, which is set on the valve plug 236, is a soft rubber elastomer with an outer diameter slightly larger than the diameter of the section of the female valve hole 221. The surface is opposite to the section of the female valve hole 221, and has a section and The elastic sealing surface 240 of the female valve hole 221 in this section is in surface contact;

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 portion 232 of the valve core rod 23, and the other end elastically pushes the outer side of the sliding sleeve 22. The convex ring 222 keeps the sleeve surface 223 of the sliding sleeve 22 on the guide hole 211 in contact with the O-ring seal 213 to form a hermetic seal, and causes the female valve hole 221 of the section to be normally blocked by the plug member 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 conveying path X ₁ , is to be connected to the downstream receiving path X ₂ through the fluid connector 1, only the male connector 10 and the female connector are required. 20 are respectively assembled on the conveying path X ₁ and the receiving path X ₂ ; before the male connector 10 is mated with the female connector 20, because the section of the male valve hole 122 of the male connector 10 is stuffed by the valve member 13 The sleeve 14 of the female connector 20 is sealed. The sleeve surface 223 and the female valve hole 221 on the sliding sleeve 22 of the female connector 20 are closed by the O-ring seal 213 and the plug 24, so that the conveying path X ₁ E ₁ direction of the flow direction of the fluid flow path and said receiving X ₂ E ₂ of a fluid that may be present, are subjected to the male connector 10 and the female connector 20 is not controlled leakage or extravasation; FIG. 6 and 7, the male connector When 10 and the female connector 20 begin the butting and docking process, the pushing tube 120 of the pushing piece 12 pushes the sliding sleeve 22 into the assembly hole 210 on the push end surface 224 of the sliding sleeve 22 Action, can cause the valve plug 236 (with the valve plug 236) at the front end of the core rod 231 of the valve body core rod 23 in the process of the section of the female valve hole 221 of the sliding sleeve 22 leaving the plug 24 24) Squeeze the valve member 13 to move in the direction of the passage hole 110, so that the O-ring seal 213 is exchanged to the sliding surface of the pushing tube 120 to seal, and the section of the male valve hole 122 is simultaneously plugged The member 14 and the plug member 24 are tightly closed (hole 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 is continuously pushed into the assembly hole 210 to the end, and the section of the male valve hole 122 completely leaves the packing 14 And the movement of the plug 24, the core hole 131 of the valve member 13 and the tube hole 234 of the valve core rod 23 can communicate with each other through the through hole 134 and the perforation 235, so that the flow direction E ₁ upstream fluid To the downstream of the flow direction E ₂ ; on the contrary, as shown in Figures 7 and 6, the butt joint of the male connector 10 and the female connector 20 moves away from each other in reverse, and the valve compression spring 15 pushes back the valve 13 and the sliding sleeve compression The spring 25 pushes the sliding sleeve 22 back, so that the exit process and/or exit can be completed, and there will be no fluid leakage, leakage or outflow;

As shown in Figures 3 and 5, the overall structure of the male connector 10 and the female connector 20, by Since the plug member 14 contacts the male valve hole 122 in a large area, a long-distance surface sealing effect is generated, and the plug member 24 has a large area contact with the female valve hole 221 in the surface sealing effect, as shown in FIG. 7, When the female valve hole 221 of the section leaves the plug member 24, the male valve hole 122 of the section and the plug member 24 can be exchanged immediately, or the female valve hole 221 of the section is returned to the plug member 24. During the process of the piece 24, the section of the male valve hole 122 can be simultaneously closed by the stopper piece 24 and the stuffing piece 14, as shown in Fig. 7 and returning to Fig. 6, a continuous, unbroken exchange is made by the stuffing The return action of the piece 14 closes the male valve hole 122 of the section; before the male and female connectors 10, 20 are butted, during the butting process, after the butting, leaving the process or after leaving, the two sections can prevent the fluid from leaking and outside. The benefits of seepage or leakage.

According to the above-mentioned embodiment, as shown in Figures 2 and 3, one end of the passage hole 110 of the male connector body 11 is provided with an internal threaded hole 111, and the body of the pushing member 12 is provided with a section of the external thread opposite to the internal threaded hole 111. Thread 124, so that the external thread 124 of the pushing member 12 can be screwed and fixed on the internal threaded hole 111 of the male connector body 11, and the valve compression spring 15 can be easily installed in the center hole 121 of the pushing member 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 section of the male valve hole 122 is 0.5 to 1.5 times the distance of the hole radius R _{1 (ie L 1} =0.5~1.5R ₁ ), and the packing member 14 the elastic stopper 140 contacts the surface of the adhesion section area of the well bore seal valve 122, the valve hole 122 for the segment of the well bore wall area (πxR ₁ xR ₁ xL ₁₎ is 1/2 to 1; 6, 7, 8. When the male connector 10 and the female connector 20 are connected or separated, the plug 14 can seal the male valve hole 122 in a large area and long distance so that the plug 14 and the plug 24. The male and female valve holes 122 and 221 can be closed without disconnection in the state of being simultaneously on the male valve hole 122 of the section (as shown in FIG. 7).

According to the above embodiment, wherein, as shown in FIGS. 2 and 3, the caulking head 130 of the valve member 13 has a cylindrical body 130A with a stepped shape, 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), and overmolded the packing 14 on the surface of the cylindrical body 130A, and the packing 14 is plastically clamped into the ring groove 130B, so that The packing member 14 is tightly connected to the packing head 130 and does not fall off.

According to the above embodiment, as shown in Figures 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 24 contacts the sealing area of the female valve hole 221 of the 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 the section;} 6, 7, 8, when the male connector 10 and the female connector 20 are connected to or separated from each other, the plug 24 can be used to close the female valve hole 221 in a large area and long distance. The member 24 contacts the male valve hole 122 and the female valve hole 221 at the same time (as shown in FIG. 7), and completes leaving the female valve hole 221 or returning to the female valve hole 221, completely blocking the possibility of fluid leakage.

According to the above embodiment, wherein, as shown in FIGS. 4 and 5, the valve plug 236 of the valve core rod 23 has a round convex post 236A in a step shape, and the body of the round convex post 236 is formed with at least one annular groove The groove 236B and the valve core rod 23 are placed in a plastic injection molding mold (not shown), and the plug 24 is overmolded on the surface of the cylindrical boss 236, by which the plug The plastic of the member 24 cannot enter the annular concave groove 236B, so that the plug member 24 is tightly fixed on the valve plug 236 and not loosened.

According to the above embodiment, as shown in Figs. 9, 10, a neck 135 is formed between the stuffing head 130 of the valve member 13 and the stop ring 132. The surface of the neck 135 is recessed with a ring groove 136. The ring groove 136 is provided with an O-shaped sealing member 137, and the length of the hole of the male valve hole 122 is L ₁₀ and extending through the O-shaped sealing member 137, as shown in Figure 13, so that the male connector 10 and the female connector Before and after the docking of the 20, the O-shaped sealing member 137 can be used to seal the male valve hole 122, which assists in improving the ability of the stuffing member 14 to close the male valve hole 122 against the leakage of high-pressure fluid.

According to the above embodiment, as shown in Figures 11 and 12, the valve plug 236 of the valve core rod 23 is provided with the valve plug 24, and the body surface of the valve plug 236 at the inner edge of the valve plug 24 is concave A concave ring groove 237 is provided, and an O-shaped tight ring 238 is provided on the concave ring groove 237, and the length of the hole of the female valve hole 221 is L ₂₀ and extends through the O-shaped tight ring 238, as shown in FIG. 13. Before and after the butting of the male connector 10 and the female connector 20, the O-shaped tight ring 238 can be sealed on the female valve hole 221 to assist in lifting the plug 24 to close the female valve hole 221 against high pressure Fluid leakage capacity.

The above description is only illustrative and not restrictive for this creation. Those of ordinary skill in the art understand that many modifications, changes, or the like can be made without departing from the spirit and scope defined by the attached specification. Effective, but all will fall into the scope of protection of this creation.

X ₁ : Conveying path

X ₂ : Receiving path

E ₁ : Flow direction (upstream)

E ₂ : Flow direction (downstream)

1: fluid connector

10: Male connector

110: Passage hole

12: Pusher

120: Push tube

122: male valve hole

13: Valve

14: stuffing pieces

15: Valve compression spring

20: Female connector

210: Assembly hole

213: O-ring seal

22: Sliding sleeve

221: Female valve hole

223: Socket Face

224: Push button end face

23: Valve body core rod

236: Valve plug

24: Stopper

25: Sliding sleeve compression spring

Claims (8)

A fluid connector is used for docking/or leaving an upstream fluid conveying path and a downstream receiving path. The fluid connector includes two male connectors and a female connector; The male connector includes: A male connector body with a channel hole in the center, one end of the channel hole is provided with a pusher, the pusher has a push tube, and the push tube has a central hole communicating with the channel hole, A section of the male valve hole is provided with a reduced diameter at one end of the central hole, and the central hole end of the section of the male valve hole is formed with a blocking end surface; A valve element is installed in the center hole of the push tube, a plugging head is formed relative to the section of the male valve hole, and a core hole communicating with the central hole is formed inside the different end of the plugging head relative to the passage hole, A stop ring is formed on the outside of the core hole relative to the stop end surface. One end of the stop ring abuts on the stop end surface, and the other end forms a displacement space between the center hole and the passage hole, and the ring More than one through hole connecting the core hole and the blocking end surface is opened on the body surface and the radial inner portion; A stuffing piece, arranged on the stuffing head, is a soft rubber elastic body with an outer diameter slightly larger than the diameter of the male valve hole of the section, and the surface is opposite to the hole wall area of the section of the male valve hole, and has a section with the hole surface of the section of the male valve hole. Elastic sealing surface for sexual contact; A valve compression spring is arranged in the center hole of the pushing member, and is located on the displacement space at one end of the stop ring of the valve member, one end is supported on the wall of the passage hole, and the other end is elastic Push the stop ring to make the elastic sealing surface of the packing piece on the packing head to seal the male valve hole of the section in a normal state; The female connector includes: A female connector body is provided with an assembly hole in its center. One end of the assembly hole has a reduced diameter. A section of guide hole is formed corresponding to the outer diameter of the push tube of the push piece of the male connector. The hole wall has a concave ring groove, and an O-ring seal is provided on the concave ring groove; A sliding sleeve, one end of the sleeve hole in the sleeve body has a reduced diameter, corresponding to the male valve hole of the male connector, a female valve hole is formed, and the sleeve body is radial, and an outer convex ring matching the assembly hole is formed , One end of the outer convex ring, the outer peripheral surface and the front end of the female valve hole of the section are respectively formed with a section of sleeve surface matching the section of the guide hole and a push end surface that can be pushed by the push tube, The sleeve face and contact with the O-ring seal to form a hermetic seal; A valve body core rod is set in the assembly hole and has a tube body. One end of the tube body forms a core rod extending into the sleeve hole of the sliding sleeve, and the other end has a fixedly mounted on the outer periphery of the sliding sleeve. Assemble the fixing part at the other end of the 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 and the sliding sleeve are provided on the pipe wall. The sleeve hole is communicated, and one end of the core rod in the sleeve hole has an enlarged rod diameter, and a valve plug is formed relative to the section of the female valve hole; A plug member, which is arranged on the valve plug head, is a soft rubber elastic body with an outer diameter slightly larger than the diameter of the female valve hole of the section. The surface is opposite to the female valve hole of the section, and has a section that is in surface contact with the female valve hole of the section. The elastic close surface; A sliding sleeve compression spring is arranged in the assembly hole and 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 The sleeve surface of the sleeve is kept in contact with the O-ring seal on the section of the guide hole to form a hermetic seal, and the section of the female valve hole is normally closed by the elastic sealing surface of the plug. According to the fluid connector described in item 1 of the scope of patent application, the male connector body One end of the channel hole is provided with an internal threaded hole, and a section of external thread is provided on the body of the pushing member relative to the internal threaded hole. According to the fluid connector described in item 1 of the scope of patent application, the hole length of the section of the male valve hole is 0.5 to 1.5 times the distance of the hole radius, and the elastic sealing surface of the plug is in contact with the section of the male valve hole The sealing area is 1/2 to 1 of the hole wall area of the male valve hole in this section. According to the fluid connector described in item 1 of the scope of patent application, wherein the plugging head of the valve element has a cylindrical body with a step shape, the body of the cylinder is formed with at least one ring groove, and the valve element is It is placed in a molding mold and overmolded the stuffing piece on the surface of the cylinder. According to the fluid connector described in item 1 of the scope of patent application, the hole length of the female valve hole of the section is 0.5 to 1.5 times the distance of the hole radius, and the elastic sealing surface of the plug member contacts the female valve of the section The close area of the hole is 1/2 to 1 of the hole wall area of the female valve hole in this section. According to the fluid connector described in item 1 of the scope of patent application, wherein the valve plug head of the valve body core rod has a round convex column with a hierarchical shape, and the body of the round convex column is formed with at least one annular concave groove And the valve body core rod is placed in a molding mold, and the plug is overmolded on the surface of the round convex column. According to the fluid connector described in item 1 of the scope of patent application, a neck is formed between the stuffing head of the valve member and the stop ring, and a ring groove is recessed on the surface of the neck, and the ring groove An O-shaped sealing member is arranged on the upper part, and the length of the hole of the section 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 patent application, wherein the valve plug is provided on the valve plug of the valve body core rod, and the valve plug body surface at the inner edge end of the plug is recessed There is a concave ring groove, an O-shaped tight ring member is arranged on the concave ring groove, and the length of the hole of the female valve hole extends through the O-shaped tight ring member.

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