Multi-channel one-way valve and integrated connector

Abstract

The multi-channel one-way valve comprises a first valve body, a second valve body, a valve bead and an elastic piece, the first valve body comprises a plurality of independent inlet channels, the second valve body is in butt joint with the first valve body, the second valve body comprises at least one outlet channel and a butt joint cavity, and the butt joint cavity is communicated with the outlet channel. Comprising a plurality of valve bead containing holes, a plurality of loading cavities and a plurality of protruding pieces, the valve bead containing holes correspond to at least part of the inlet channels respectively and are communicated with one another, each valve bead containing hole comprises a limiting wall, and the loading cavities are communicated with the valve bead containing holes respectively and used for loading elastic pieces. The elastic piece is arranged to apply force towards the first valve body to the valve bead by means of elastic restoring force, the protruding pieces are arranged in the butt joint cavity and correspond to the valve bead containing holes one to one, and the valve bead is located between the limiting wall and the protruding pieces. The multi-channel one-way valve has better sealing performance and a simple structure, and the production cost can be effectively reduced. The utility model further provides an integrated connector.

Description

Technical Field

[0001] The utility model relates to the field of gas-liquid transmission, in particular to the field of gas-liquid integrated joints. Background Art

[0002] Combination joints or integrated joints can combine various functional components and structures together, and can integrate multiple water and gas channels into one joint, which can be directly connected to the target interface to realize the functions of integrated transmission of gas, liquid, and electricity, and realize the convergence, reversal and sealing of water and gas without backflow.

[0003] Most of the existing combined joints are standard parts, such as the use of all-in-one joints, one-way valves, quick-connect joints, etc., and then adding a shell to form an integrated joint. The size of this integrated joint is generally large, and generally does not meet the requirements of chemical corrosion resistance and sealing. In addition, due to size limitations, integrated joints will have many special-shaped structures, which can easily lead to problems such as broken parts, blocked seals, or unsealed one-way valves.

[0004] The one-way valve is one of the important components of the integrated joint. Multiple flow channels in the integrated joint need to be equipped with multiple one-way valves. The existing valve structure often uses a valve ball in combination with an elastic member to achieve one-way pre-fixation, flow diversion and sealing functions. Providing a multi-channel one-way valve with good sealing performance, reliable pre-fixation structure and low production cost is an urgent problem to be solved. Utility Model Content

[0005] One object of the utility model is to provide a multi-channel one-way valve.

[0006] To achieve the above-mentioned purpose, a multi-channel one-way valve includes a first valve body, a second valve body, a valve ball and an elastic member, the first valve body includes a plurality of independent inlet channels; the second valve body is docked with the first valve body, the second valve body includes at least one outlet channel and a docking chamber, the docking chamber is connected with the outlet channel, the docking chamber includes a plurality of valve ball accommodating holes, a plurality of loading chambers and a plurality of protrusions, the plurality of valve ball accommodating holes correspond to at least part of the inlet channels respectively, and are arranged to be connected with each other, each of the valve ball accommodating holes includes a limiting wall respectively; a plurality of loading chambers are respectively connected with each of the valve ball accommodating holes, for loading the elastic member, the elastic member is arranged to apply a force toward the first valve body to the valve ball by means of an elastic restoring force; a plurality of protrusions are arranged in the docking chamber, corresponding one by one to each of the valve ball accommodating holes, and the valve ball is located between the limiting wall and the protrusion.

[0007] In one or more embodiments, the limiting wall includes a first limiting surface for contacting the valve ball, and the first limiting surface is a curved surface or a cut surface.

[0008] In one or more embodiments, the first limiting surface is an arc surface, the protrusion includes a second limiting surface for contacting the valve ball, the second limiting surface is an arc surface, and the first limiting surface and the second limiting surface coincide with the same cylindrical surface.

[0009] In one or more embodiments, the protrusion includes a limiting snap-in located at the end and a limiting boss located at the root, which are respectively used to limit the maximum displacement of the valve ball on both sides.

[0010] In one or more embodiments, the inlet channel further includes a partial channel not connected to the docking cavity, and the second valve body includes a guide channel not connected to the docking cavity, which is used to communicate with the partial channel.

[0011] In one or more embodiments, the flow guiding channel includes a linear flow channel and / or a non-linear flow channel.

[0012] In one or more embodiments, the inlet of the guide channel is located at the docking surface of the second valve body and the first valve body, and the outlet of the guide channel is located at the side wall of the second valve body and / or at the bottom of the second valve body.

[0013] In one or more embodiments, the second valve body further includes a boss disposed on a mating surface between the second valve body and the first valve body, and the boss is used to form a portion of the valve ball accommodating hole.

[0014] In one or more embodiments, the one-way valve further includes a sealing gasket disposed between the first valve body and the second valve body, wherein the sealing gasket includes a through hole, and the through hole is used to accommodate the boss.

[0015] In one or more embodiments, the one-way valve further includes a sealing gasket disposed between the first valve body and the second valve body, and the sealing gasket further includes a communicating hole communicating with the guide channel.

[0016] In one or more embodiments, the first valve body further includes an end receiving hole which is opposite to and independent of the valve ball receiving hole and is used to receive the valve ball and cooperate with the valve ball with a gap.

[0017] In one or more embodiments, a sealing ring is provided between the valve ball and the end receiving hole.

[0018] In one or more embodiments, at least one of the loading chambers is in communication with the outlet channel.

[0019] In one or more embodiments, the first limiting surface is a curved surface, and the curvature is greater than or equal to 2π / 3 and less than 2π.

[0020] Another object of the present invention is to provide an integrated joint including a docking joint and the above-mentioned multi-channel one-way valve, wherein the docking joint is docked with the first valve body and includes a flow channel and an external connection port for respectively communicating with each of the inlet channels.

[0021] The single bayonet structure formed by the protrusion and the valve ball receiving hole of the one-way valve effectively simplifies the multi-valve ball positioning assembly structure, and effectively reduces the production cost while ensuring the sealing effect and stable pre-fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0023] Figure 1 It is a simplified schematic diagram of the connection circuit;

[0024] Figure 2 It is an oblique view of the integrated joint;

[0025] Figure 3 It is a schematic diagram of the butt joint;

[0026] Figure 4 is a schematic diagram of a first valve body;

[0027] Figure 5 is a schematic diagram of the second valve body;

[0028] Figure 6 is a schematic diagram of a gasket;

[0029] Figure 7 This is the matching relationship diagram of the valve ball, elastic part and sealing ring;

[0030] Figure 8 is a top view of the gasket and the second valve body after assembly;

[0031] Fig. 9 It is a partial schematic diagram of a single bayonet structure;

[0032] Fig.10 is a partial cross-sectional view of the integrated joint;

[0033] Fig.11 It is a cross-sectional view along the axis of a portion of the flow channel;

[0034] Fig.12 is a cross-sectional view along the axis of another portion of the flow channel;

[0035] Fig.13 It is a cross-sectional view along the axis of another part of the flow channel. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0037] It should be noted that these and other subsequent drawings are only examples and are not drawn in proportion, and should not be used as a limitation on the actual scope of protection required by the present utility model.

[0038] Figure 1 A simplified schematic diagram of a circuit with an integrated connector 100, an electrode 8, a liquid chamber 7, a gas source 9, etc. is shown. The integrated connector 100 includes a one-way valve 6, an inlet and an outlet 3. The one-way valve 6 has multiple independent flow paths, and each independent flow path has an independent inlet. Each inlet is connected to the first liquid inlet 103, the gas inlet 104, the second liquid inlet 105, the third liquid inlet 106 and the fourth liquid inlet 107, respectively.

[0039] The system circuit controls the solenoid valve 2 to switch direction, and the air outlets of the first connector air port 101 and the second connector air port 102 are exchanged, and the electrode 8 enters the maintenance state. The first liquid inlet 103 and the air inlet 104 are opened in sequence, and the liquid is pumped through the two flow paths of the one-way valve 6. The one-way valve 6 is in an open state, so that the liquid flows out from the outlet 3 of the one-way valve 6 and enters the liquid cavity 7 to clean the electrode 8. Then open the second liquid inlet 105 and the air inlet 104, and clean and dry the liquid cavity 7 through the one-way valve 6. Finally, the third liquid inlet 106 and the fourth liquid inlet 107 pump liquid through the one-way valve 6 to complete the electrode calibration. Thus, the integrated connector 100 independently controls the on-off of each flow path through the one-way valve 6 to transmit gas or liquid.

[0040] Integrated connector 100 reference Figures 2 to 5 As shown, it includes a butt joint 5 and a multi-channel one-way valve 6. The butt joint 5 provides an external connection port 502 such as a thread and a plurality of independent flow channels 501 connected to each liquid inlet and gas inlet, and the external connection port 502 is connected to each flow channel 501.

[0041] The one-way valve 6 includes a first valve body 10 and a second valve body 20 connected to each other, and also includes an internal valve ball 30 and an elastic member 40. The joint 5, the first valve body 10, and the second valve body 20 are connected to each other in sequence to form an integrated joint 100.

[0042] like Figure 4As shown, the first valve body 10 includes a plurality of independent inlet channels 11, which are communicated with the flow channel 501 of the docking head 5 for passing fluid, and the fluid is not limited to gas or liquid.

[0043] The second valve body 20 is docked with the first valve body 10, and the second valve body 20 includes a docking cavity 22 and at least one outlet channel 21. Figures 5 to 10 It is understood that the docking chamber 22 includes a plurality of valve ball receiving holes 229, a plurality of loading chambers 228, and a plurality of protrusions 227. The number of valve ball receiving holes 229, loading chambers 228, and protrusions 227 corresponds one to one.

[0044] The valve ball receiving hole 229 includes a limiting wall 226. The valve ball 30 is placed in the valve ball receiving hole 229, between the limiting wall 226 and the protrusion 227, so that the limiting wall 226 cooperates with the protrusion 227 to engage the valve ball 30. The protrusion 227 is preferably a cantilever beam structure, with a thin outer side, which will deform under the action of the extrusion force, so that the valve ball 30 is installed in the valve ball receiving hole 229.

[0045] The first valve body 10 includes an independent end receiving hole 12 facing each valve ball receiving hole 229, such as Fig.10 As shown, the end receiving hole 12 is used to receive part of the valve ball 30, so that the end receiving hole 12 and the valve ball receiving hole 229 are jointly defined in a spherical space. The end receiving hole 12 and the part of the valve ball 30 are matched with a gap to allow the movement of the valve ball. A sealing ring 13 is provided between the valve ball 30 and the end receiving hole 12 to ensure sealing.

[0046] Each loading chamber 228 is connected to each valve ball receiving hole 229 for loading the elastic member 40. The elastic member 40 is configured to apply a force toward the first valve body 10 to the valve ball 30 by means of elastic restoring force. Fig.10 As shown, at least one loading chamber 228 is connected to the outlet channel 21. When the fluid pressure in an inlet channel 11 of the first valve body 10 is large enough to force the valve ball 30 to overcome the elastic force of the elastic member 40 and move toward the elastic member 40, the fluid flowing into the inlet channel 11 is gathered in the docking chamber 22, and flows into the outlet channel 21 through the loading chamber 228 and flows out of the one-way valve 6.

[0047] In some embodiments, Figures 5 to 9 As shown, the limiting wall 226 includes a first limiting surface 2261 for contacting the valve ball 30. The first limiting surface 2261 is a curved surface or a cut surface. The cut surface is a polygonal cut surface or a folded cut surface to engage the valve ball 30. The first limiting surface 2261 is preferably a curved surface, which is easy to process and saves costs. When the first limiting surface 2261 is a curved surface, Fig. 9In the illustrated embodiment, the arc a is preferably greater than or equal to 2π / 3 and less than 2π, so as to provide a sufficient limiting area to prevent the valve ball 30 from being separated. In other embodiments, the arc a may also be π.

[0048] Continue back Figure 5 As shown, in some embodiments, a plurality of protrusions 227 are disposed in the docking cavity 22, preferably disposed in a non-central portion of the docking cavity 22, to avoid obstructing the flow of the fluid. Preferably, the protrusion 227 includes a limiting bayonet 2271 located at the end and a limiting boss 2272 located at the root, and the limiting bayonet 2271 and the limiting boss 2272 are laterally protruding structures, respectively cooperating with one side and the other side of the valve ball 30 to limit the maximum displacement of the valve ball 30 on both sides.

[0049] The limiting bayonet 2271 corresponds to each valve ball receiving hole 229 one by one, and forms a single bayonet structure together with the limiting wall 226. The valve ball 30 is squeezed toward the single bayonet direction under the initial elastic force applied by the elastic member 40, and the limiting bayonet 2271 limits the axial position of the valve ball 30 within a certain range, and the limiting wall 226 and the protrusion 227 limit the eccentricity of the valve ball 30 within a small range.

[0050] Continue to refer to Figure 7 As shown, Figure 7 for Fig.12 In the enlarged view at point Z, when the valve ball 30 moves along the axial direction of the elastic member 40 in the up and down directions as shown in the figure, the limiting boss 2272 and the limiting bayonet 2271 can limit the maximum displacement of the valve ball 30 in the up and down directions respectively, thereby limiting the position of the valve ball 30 within the allowable range.

[0051] In some embodiments, Figure 8 and Fig. 9 As shown, the limiting bayonet 2271 of the protruding member 227 includes a second limiting surface 2273 for contacting the valve ball 30, and the second limiting surface 2273 is preferably a curved surface. When the first limiting surface 2261 of the limiting wall 226 is also a curved surface, the first limiting surface 2261 and the second limiting surface 2273 are arranged to overlap on the same cylindrical surface, so that the valve ball 30 can be pre-fixed stably.

[0052] It is understandable that both the limiting bayonet 2271 and the limiting boss 2272 may include a laterally protruding arc-shaped limiting surface to cooperate with the surface of the valve ball 30. The lateral arc surface may be a protruding cylindrical surface or a concave arc surface, such as Figure 5 shown.

[0053] The above-mentioned single bayonet design has a simple structure. The protrusion 227 cooperates with the valve ball accommodating hole 229 to form a circumferentially limited valve ball positioning assembly structure, which can effectively pre-fix the valve ball and reduce the number of components for traditional valve ball fixing. Especially for complex structures containing multiple valve balls, it simplifies the structure and saves production costs while ensuring the sealing effect.

[0054] Back to Figure 5 As shown, the second valve body 20 further includes a boss 24 disposed on the mating surface 27 of the second valve body 20 and the first valve body 10 , the boss 24 is used to form a portion of the valve ball accommodating hole 229 , and correspondingly, part of the limiting wall 226 is also provided by the boss 24 .

[0055] Correspondingly, the one-way valve further includes a sealing gasket 50 disposed between the first valve body 10 and the second valve body 20. Figure 6 and Figure 8 As shown, the sealing gasket 50 includes a through hole 51, and the through hole 51 is used to accommodate the boss 24. The boss 24 blocks the sealing gasket 50 from entering the valve ball accommodating hole 229 to avoid affecting the eccentricity of the valve ball 30 and causing leakage.

[0056] Figures 11 to 13 The cross-sectional view along different flow channels is shown. The joint 5 includes a plurality of flow channels 501, wherein a portion of the flow channels 501 cooperates with the one-way valve 6, such as being connected to the inlet channel 11 located on the first valve body 10; another portion of the flow channels 501' does not cooperate with the one-way valve 6, and the fluid is led out through a side outlet 503 located on the first valve body 10, such as Fig.12 and Fig.13 shown.

[0057] For the inlet channel 11 of the first valve body 10, at least a portion of the inlet channel 11 is connected to the docking cavity 22, and another portion of the inlet channel 11' is not connected to the docking cavity 22. Fig.12 and 13 shown.

[0058] For the inlet channel 11', the second valve body 20 is provided with a flow guide channel 25 which is not connected with the docking cavity 22 and is used to communicate with the inlet channel 11'. The flow guide channel 25 is an open structure provided on the docking surface 27 of the second valve body for easy processing.

[0059] The inlet 250 of the flow guiding channel 25 is located on the mating surface 27 of the second valve body 20 and the first valve body 10, and the outlets 250, 251' of the flow guiding channel 25 are located on the side wall of the second valve body 20 or at the bottom of the second valve body 20. Fig.13 As shown, the outlet 251 of the flow guiding channel 25 may be located on the side wall of the second valve body 20 , and the outlet 251 ′ may also be located on the bottom of the second valve body 20 .

[0060] Correspondingly, the sealing gasket 50 further includes a connecting hole 52 connected to the flow guide channel 25, so as to connect the inlet channel 11' of the first valve body 10 with the flow guide channel 25. Figure 6 and Figure 8 shown. Figure 8 In the figure, the area where the dotted line P is located is the docking area between the inlet channel 11' and the guide channel 25. The flow path formed by this structure does not pass through the docking cavity 22 and the valve ball 30, but directly leads the fluid entering the inlet channel 11' out through the connecting hole 52 on the sealing gasket 50.

[0061] The flow guide channel 25 includes a linear flow channel 258 and / or a non-linear flow channel 259. Figure 5 As shown, the inlet, outlet and channel of the linear flow channel 258 are located on the same straight line, and are used to guide the fluid introduced into the inlet channel 11' by connecting the inlet 250 and the outlet 251. The inlet, outlet and channel of the non-linear flow channel 259 are not located on the same straight line, and can be, for example, bent or curved. The purpose of the non-linear flow channel 259 is to avoid the flow channel and avoid the negotiation of the flow path.

[0062] For example, for Figure 4 The first inlet channel 111 and the second inlet channel 112 shown, the linear flow channel 258 is used to guide the fluid flowing into the first inlet channel 111, and the non-linear flow channel 259 is used to guide the fluid flowing into the second inlet channel 112, while avoiding the area where the linear flow channel 258 is located, avoiding penetrating other structures, and realizing independent diversion of each flow path. In addition, this structure can also make full use of the space of the joint. In the prior art, inclined holes are often used to avoid the negotiation of flow paths, but the inclined holes are inconvenient to make and the cost is relatively high. The above-mentioned non-linear flow channel can be processed into a vertical channel, which can have a regular vertical flow channel structure while avoiding channel interference, avoiding the use of inclined holes, facilitating processing and manufacturing, and reducing production costs.

[0063] Therefore, the above-mentioned one-way valve structure realizes the convergence, reversal and sealing of water and gas, and prevents interference between inclined holes and hole positions. Especially for the one-way valve structure with multiple valve holes and valve balls, it has a relatively simple structure and better sealing and fixing effects, and effectively reduces the manufacturing cost under the premise of reliable structure.

[0064] It should be noted that the above content uses words such as "first" and "second" to limit components, which is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0065] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0066] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope defined by the claims of the utility model.

Claims

1. A multi-channel one-way valve, comprising a first valve body (10), a second valve body (20), a valve ball (30) and an elastic member (40), characterized in that: The first valve body (10) comprises a plurality of independent inlet channels (11); The second valve body (20) is butt-jointed with the first valve body (10), and comprises: at least one outlet channel (21); The docking chamber (22), which is in communication with the outlet channel (21), comprises: A plurality of valve ball accommodating holes (229), corresponding to at least a portion of the inlet channels (11) respectively, and arranged to be in communication with each other, and each of the valve ball accommodating holes (229) respectively comprises a limiting wall (226); a plurality of loading chambers (228), respectively connected to the valve ball receiving holes (229), for loading the elastic member (40), wherein the elastic member (40) is configured to apply a force toward the first valve body (10) to the valve ball (30) by means of an elastic restoring force; and A plurality of protrusions (227) are arranged in the docking cavity (22) and correspond one-to-one to each of the valve ball receiving holes (229); the valve ball (30) is located between the limiting wall (226) and the protrusions (227).

2. The multi-channel one-way valve according to claim 1, characterized in that: The limiting wall (226) comprises a first limiting surface (2261) for contacting the valve ball (30), and the first limiting surface (2261) is a curved surface or a cut surface.

3. The multi-channel one-way valve according to claim 2, characterized in that: The first limiting surface (2261) is an arc surface, the protruding member (227) comprises a second limiting surface (2273) for contacting the valve ball (30), and the second limiting surface (2273) is an arc surface. The first limiting surface (2261) and the second limiting surface (2273) coincide with the same cylindrical surface.

4. The multi-channel one-way valve according to claim 1, characterized in that: The protruding member (227) comprises a limiting bayonet (2271) at the end and a limiting boss (2272) at the root, which are respectively used to limit the maximum displacement of the valve ball (30) on both sides.

5. The multi-channel one-way valve according to claim 1, characterized in that: The inlet channel (11) further comprises a partial channel not in communication with the docking chamber (22), and the second valve body (20) comprises a flow guide channel (25) not in communication with the docking chamber (22) and is used to communicate with the partial channel.

6. The multi-channel one-way valve according to claim 5, characterized in that: The flow guide channel (25) includes a linear flow channel (258) and / or a non-linear flow channel (259).

7. The multi-channel one-way valve according to claim 5, characterized in that: The inlet (250) of the guide channel (25) is located on the docking surface (27) between the second valve body (20) and the first valve body (10), and the outlet (251, 251') of the guide channel (25) is located on the side wall of the second valve body (20) and / or at the bottom of the second valve body (20).

8. The multi-channel one-way valve according to claim 1, characterized in that: The second valve body (20) further comprises a boss (24) arranged on a mating surface (27) between the second valve body (20) and the first valve body (10), wherein the boss (24) is used to form a part of the valve ball accommodating hole (229).

9. The multi-channel one-way valve according to claim 8, characterized in that: The one-way valve further comprises a sealing gasket (50) arranged between the first valve body (10) and the second valve body (20); the sealing gasket (50) comprises a through hole (51); and the through hole (51) is used to accommodate the boss (24).

10. The multi-channel one-way valve according to claim 5, characterized in that: The one-way valve further comprises a sealing gasket (50) arranged between the first valve body (10) and the second valve body (20), and the sealing gasket (50) further comprises a communicating hole (52) communicating with the flow guide channel (25).

11. The multi-channel one-way valve according to claim 1, characterized in that: The first valve body (10) further comprises an end receiving hole (12) which is opposite to and independent of the valve ball receiving hole (229) and is used to receive the valve ball (30) and is matched with the valve ball (30) with a clearance.

12. The multi-channel one-way valve according to claim 11, characterized in that: A sealing ring (13) is provided between the valve ball (30) and the end receiving hole (12).

13. The multi-channel one-way valve according to claim 1, characterized in that: At least one of the loading chambers (228) is in communication with the outlet channel (21).

14. The one-way valve according to claim 2, characterized in that: The first limiting surface (2261) is a curved surface, and the curvature is greater than or equal to 2π / 3 and less than 2π.

15. An integrated joint, comprising a butt joint (5) and the multi-channel one-way valve according to any one of claims 1 to 14, wherein the butt joint (5) is butt-jointed with the first valve body (10), comprising: A circulation channel (501) for communicating with each of the inlet channels (11) respectively; External connection port (502).

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