A one-in, multiple-out check valve

Abstract

The utility model provides a kind of one-in multi-out check valve, the one-in multi-out check valve includes valve body, cover and valve core of the valve cover being arranged in the top of valve body, the inside of valve body is provided with flow cavity, the bottom of valve body is provided with import with flow cavity intercommunication, the side of valve body is provided with at least two exports with flow cavity intercommunication, one end of valve core abuts valve cover, the other end of valve core can block the junction of import and flow cavity.The one-in multi-out check valve is matched by valve cover, valve body and valve core, import is simultaneously set in the bottom of valve body, and at least two exports are set in the side of valve body, so that the one-in multi-out check valve can be directly assembled and connected with multiple direction pipes, without installing three-way, four-way and other pipe fittings, simplify pipeline system structure, reduce the quantity of connecting component and overall manufacturing cost, while due to the reduction of connection node, improve system reliability while reducing the difficulty of later maintenance.

Description

Technical Field

[0001] This application relates to the field of check valve technology, and in particular to a single-inlet, multi-outlet check valve. Background Technology

[0002] A check valve is a valve device that uses a circular valve disc as its opening and closing element, relying on its own weight and the pressure of the medium to automatically open and close to prevent backflow of the medium. As a type of automatic valve, the check valve is also known in the engineering field as a non-return valve, one-way valve, reflux valve, or isolation valve. This valve is widely used in pumping systems as a foot valve, and its core function is to effectively block the reverse flow of the fluid medium.

[0003] Currently, general-purpose check valves adopt a single-inlet, single-outlet design. When the system requires the outlet medium to be distributed to multiple pipeline directions, additional tees, crosses, or other multi-way fittings must be installed at the valve outlet. This configuration has the following technical drawbacks: First, it complicates the pipeline system structure, significantly increasing the number of connecting parts and overall manufacturing costs; second, too many connection points create potential sources of failure, reducing system reliability and significantly increasing the difficulty of later maintenance. Especially in cryogenic pump pool applications, such as cryogenic pump pools for gas station pump skids, the medium must follow a specific flow direction requirement of "bottom inlet, side outlet," and the insufficient flow direction adaptability of existing check valves has become a technical bottleneck that urgently needs to be addressed.

[0004] To address the aforementioned technical challenges, it is necessary to develop a new type of check valve structure with a single inlet and multiple outlet functions to optimize system configuration, improve operational reliability, and meet the requirements of special operating conditions. Utility Model Content

[0005] In view of this, in order to overcome the shortcomings of the prior art, this utility model provides a single-inlet multi-outlet check valve, which effectively solves the problems of existing check valves not having a multi-outlet flow channel design and insufficient adaptability to specific working conditions such as cryogenic pump tanks.

[0006] According to the present invention, a single-inlet multi-outlet check valve is provided, wherein the single-inlet multi-outlet check valve includes a valve body, a valve cover covering the top of the valve body, and a valve core. The valve body has a flow cavity inside, an inlet communicating with the flow cavity is provided at the bottom of the valve body, and at least two outlets communicating with the flow cavity are provided on the side of the valve body. One end of the valve core abuts against the valve cover, and the other end of the valve core can block the connection between the inlet and the flow cavity.

[0007] Preferably, the valve cover includes a cover body and a sleeve portion, the sleeve portion extending from the cover body toward the valve body, and the sleeve portion fitting over the end of the valve body.

[0008] Preferably, a spring is provided inside the valve core, and when the end of the valve body is sleeved on the sleeve portion, the spring extends out of the end of the valve body and abuts against the inner end of the sleeve portion.

[0009] Preferably, a first sealing element is provided on the outer periphery of the sleeve portion, and when the valve cover is placed on top of the valve body, the end of the valve body is connected to the valve cover through the first sealing element.

[0010] Preferably, the valve cover and the valve body are detachably connected via a first connector.

[0011] Preferably, the end of the valve core that blocks the inlet is provided with a second sealing element, and the second sealing element is disposed on the end face of the valve core through a second connecting element.

[0012] Preferably, an abutting protrusion is provided at the connection between the inlet and the flow cavity; when the valve core blocks the connection between the inlet and the flow cavity, the abutting protrusion abuts against the second sealing element.

[0013] Preferably, there are two outlets, which are disposed opposite to each other on the side of the valve body.

[0014] Preferably, the number of outlets is three, namely a first outlet, a second outlet, and a third outlet, wherein the angle between the axis of the first outlet and the axis of the second outlet is 90 degrees, and the angle between the axis of the second outlet and the axis of the third outlet is 90 degrees.

[0015] Preferably, the number of outlets is four, and the four outlets are arranged in pairs opposite to each other on the side of the valve body.

[0016] According to this utility model, the single-inlet multi-outlet check valve, through the cooperation of the valve cover, valve body, and valve core, and with an inlet at the bottom of the valve body and at least two outlets on the side of the valve body, allows the single-inlet multi-outlet check valve to be directly assembled and connected to pipelines in multiple directions without the need for tees, crosses, or other fittings. This simplifies the pipeline system structure, reduces the number of connecting parts and overall manufacturing costs. Furthermore, the reduced number of connection points improves system reliability and reduces the difficulty of later maintenance. The single-inlet multi-outlet check valve, with its specific flow direction of bottom inlet and side outlet, can be applied to cryogenic pump pools in gas station pump skids, for example, improving versatility and adaptability. The overall structure of this single-inlet multi-outlet check valve is simple, saving overall pipeline layout space, material and labor costs, and meeting diverse application needs.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a one-inlet, two-outlet check valve according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of a one-inlet, three-outlet check valve according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of a one-inlet, four-outlet check valve according to an embodiment of the present invention is shown. Figure 4 A cross-sectional view of a one-inlet, multiple-outlet check valve according to an embodiment of the present invention is shown. Figure 5 A schematic diagram of the valve core according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the valve cover according to an embodiment of the present invention is shown.

[0020] Reference numerals: 1-valve cover; 101-cover body; 102-sleeve part; 2-valve body; 201-abutting protrusion; 3-valve core; 301-spring element; 4-inlet; 501-first outlet; 502-second outlet; 503-third outlet; 504-fourth outlet; 601-first seal; 602-second seal; 701-first connector; 702-second connector. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] According to the present invention, a single-inlet, multi-outlet check valve is provided, such as... Figures 1 to 6 As shown, this single-inlet, multi-outlet check valve can be used, for example, in the cryogenic pump pool of a gas station pump skid, solving the problem of insufficient adaptability of existing check valves. The single-inlet, multi-outlet check valve includes a valve cover 1, a valve body 2, and a valve core 3.

[0026] In the following description, reference will be made to Figures 1 to 6The detailed structure of the valve cover 1, valve body 2, and valve core 3 of the single-inlet multi-outlet check valve is described in detail.

[0027] like Figures 1 to 6 As shown, in this embodiment, the valve core 3 is disposed inside the valve body 2, and the valve cover 1 is placed on top of the valve body 2 to seal the valve body 2, thus housing the valve core 3 inside the valve body 2. The valve body 2 is formed into an approximately cylindrical structure, with an inlet 4 at the bottom and at least two outlets on the sides. In this embodiment, the inlet 4, the at least two outlets, and the valve body 2 can be formed as an integral structure. Accordingly, the valve core 3 and the valve cover 1 can be formed into approximately cylindrical structures and can cooperate with the cylindrical valve body 2, thereby providing better adaptation to pipelines.

[0028] Furthermore, the valve body 2 has an internal flow chamber. When the flow chamber is not blocked by the valve core 3, the inlet 4 can connect to at least two outlets through the flow chamber. To accommodate cryogenic pump tanks, such as those in gas station pump skids, the inlet 4 is located at the bottom of the valve body 2 and can directly connect to the flow chamber. The side of the valve body 2 has at least two outlets connected to the flow chamber, allowing this single-inlet, multi-outlet check valve to meet the specific flow direction requirement of "bottom inlet, side outlet." The at least two outlets on the side of the valve body 2 can connect to pipelines in multiple directions, such as the direction of the dispenser, storage tank, and vaporizer in a gas station pump skid.

[0029] Furthermore, one end of the valve core 3 abuts against the valve cover 1, and the other end of the valve core 3 can block the connection between the inlet 4 and the flow chamber. The valve core 3 enables the valve body 2 to play a check valve function. When the valve core 3 blocks the connection between the inlet 4 and the flow chamber (i.e., the valve core 3 blocks the inlet 4), the flowing medium cannot enter the flow chamber through the inlet 4 and then flow out through different outlets. When the valve core 3 is pushed by external pressure (such as the driving force of the flowing medium) and separates from the inlet 4, the flowing medium can enter the flow chamber through the inlet 4 and then flow out through different outlets.

[0030] This single-inlet, multi-outlet check valve, through the cooperation of valve cover 1, valve body 2, and valve core 3, and with an inlet 4 at the bottom of valve body 2 and at least two outlets on the side of valve body 2, allows for direct connection to pipelines in multiple directions without the need for tees, crosses, or other fittings. This simplifies the pipeline system structure, reduces the number of connecting parts and overall manufacturing costs. Furthermore, the reduced number of connection points improves system reliability and reduces maintenance difficulty. The bottom-inlet, side-outlet design allows for application in cryogenic pump pools, such as those in gas station pump skids, enhancing versatility and adaptability. The simple overall structure of this check valve saves space in the overall pipeline layout, reduces material and labor costs, and meets diverse application needs.

[0031] Preferably, such as Figure 4 and Figure 6 As shown, in this embodiment, the valve cover 1 may include a cover body 101 and a sleeve portion 102. The sleeve portion 102 extends from the cover body 101 toward the valve body 2 and is fitted onto the end of the valve body 2. Viewed from a frontal perspective, the valve cover 1 can be formed into a T-shaped structure, where the horizontal side of the T-shape is the cover body 101 and the vertical side is the sleeve portion 102. Since the valve core 3 needs to move up and down inside the valve body 2 to open or close the inlet 4, the sleeve portion 102 provided at the lower part of the cover body 101 provides sufficient space for the valve body 2 to ensure smooth opening of the inlet 4.

[0032] Preferably, such as Figures 4 to 6 As shown, in this embodiment, a spring 301 is provided inside the valve core 3. The main body of the valve core 3 can be formed as a sleeve structure, which is used to accommodate the spring 301. When the end of the valve body 2 is fitted onto the sleeve portion 102, the spring 301 extends beyond the end of the valve body 2 and abuts against the inner end of the sleeve portion 102. In the normally extended state, the length of the spring 301 in the vertical direction is greater than the length of the valve core 3. Thus, through the abutment between the spring 301 and the sleeve portion 102, when the valve core 3 is pushed by an external force and moves, the spring 301 is compressed, thereby causing the valve core 3 to separate from the inlet 4. After the valve core 3 is no longer pushed by an external force, the spring 301 returns to its original position, causing the valve core 3 to reset, thereby causing the valve core 3 to block the inlet 4.

[0033] Preferably, such as Figure 6 As shown, in this embodiment, a first sealing element 601 is fitted on the outer periphery of the sleeve portion 102. When the valve cover 1 is placed on top of the valve body 2, the end of the valve body 2 is connected to the valve cover 1 through the first sealing element 601. The first sealing element 601 can be, for example, a sealing gasket, which can ensure the sealing at the connection between the valve cover 1 and the valve body 2.

[0034] Preferably, such as Figures 1 to 4 and Figure 6 As shown, in this embodiment, the valve cover 1 and the valve body 2 are detachably connected via a first connector 701. To ensure the stability of the connection and the sealing of the connection (by applying pressure to the connection with external force, thereby causing the first sealing element 601 to produce a sealing effect), the valve cover 1 and the valve body 2 need to be additionally connected via the first connector 701. The first connector 701 can be, for example, a fastening bolt. Since both the cover body 101 of the valve cover 1 and the main body of the valve body 2 can be formed into an approximately cylindrical structure, in order to ensure the stability of the connection in the circumferential direction, there can be multiple first connectors 701, which are evenly arranged on the periphery of the cover body 101 of the valve cover 1 and the main body of the valve body 2.

[0035] Preferably, such as Figure 4 and Figure 5 As shown, in this embodiment, a second sealing element 602 is provided at the end of the valve core 3 that blocks the inlet 4. The second sealing element 602 is disposed on the end face of the valve core 3 via a second connecting member 702. The second sealing element 602 can also be, for example, a sealing gasket, which can seal the inlet 4 and the end face of the valve core 3. The second sealing element 602, formed as a sealing gasket, is fixed to the end face of the valve core 3 via the second connecting member 702. The second connecting member 702 can be, for example, a fastening bolt.

[0036] Preferably, such as Figure 4 As shown, in this embodiment, an abutting protrusion 201 is provided at the connection between the inlet 4 and the flow cavity. The abutting protrusion 201 can be formed as an annular protrusion to assist in sealing the end face of the valve core 3 and the inlet 4. When the valve core 3 blocks the connection between the inlet 4 and the flow cavity, the abutting protrusion 201 abuts against the second seal 602.

[0037] Preferably, such as Figures 1 to 3 As shown, three embodiments are provided in the examples, namely: Figure 1 The one-inlet, two-outlet check valve shown is Figure 2 The one-inlet, three-outlet check valve shown and Figure 3 The example shown is a one-inlet, four-outlet check valve. All three types of check valves include the aforementioned structure, differing only in the number of outlets and their specific locations.

[0038] See Figure 1 In this embodiment, the one-inlet, two-outlet check valve includes a first outlet 501 and a second outlet 502, which are disposed opposite to each other on the side of the valve body 2. The flowing medium that flows into the flow chamber from the inlet 4 can flow out through the first outlet 501 and the second outlet 502 respectively.

[0039] See Figure 2In this embodiment, the one-in-three-outlet check valve includes a first outlet 501, a second outlet 502, and a third outlet 503. These three outlets are spaced apart and disposed on the side of the valve body 2. Specifically, the angle between the axis of the first outlet 501 and the axis of the second outlet 502 is 90 degrees, and the angle between the axis of the second outlet 502 and the axis of the third outlet 503 is also 90 degrees. The flowing medium entering the flow chamber from the inlet 4 can exit through the first outlet 501, the second outlet 502, and the third outlet 503 respectively.

[0040] See Figure 3 In this embodiment, the one-in-four-out check valve includes a first outlet 501, a second outlet 502, a third outlet 503, and a fourth outlet 504, which are arranged in pairs opposite to each other on the side of the valve body 2. The flowing medium that flows into the flow chamber from the inlet 4 can flow out through the first outlet 501, the second outlet 502, the third outlet 503, and the fourth outlet 504, respectively.

[0041] The operation of this one-inlet multi-outlet check valve is as follows: When the medium enters through inlet 4, the pressure pushes the valve core 3 up, allowing the medium to enter the flow chamber of valve body 2 and then flow out through the outlet (a one-inlet two-outlet, one-inlet three-outlet, or one-inlet four-outlet check valve can be selected according to usage requirements). When the medium flows in the reverse direction, due to the elasticity of spring element 301 and the pressure of the medium, valve core 3 is pressed tightly against valve body 2, preventing the medium from flowing and thus achieving the check valve function. In addition to the check valve function, this one-inlet multi-outlet check valve can also be used as a three-way or four-way valve between the outlets.

[0042] This single-inlet, multi-outlet check valve, through the cooperation of the valve cover, valve body, and valve core, and with an inlet at the bottom of the valve body and at least two outlets on the side, allows for direct connection to pipelines in multiple directions without the need for tees, crosses, or other fittings. This simplifies the piping system structure, reduces the number of connecting parts and overall manufacturing costs. Furthermore, the reduced number of connection points improves system reliability and reduces maintenance difficulty. The bottom-inlet, side-outlet design allows for application in cryogenic pump pools, such as those in gas station pump skids, enhancing versatility and adaptability. The simple overall structure of this check valve saves space in the overall piping layout, reduces material and labor costs, and meets diverse application needs.

[0043] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A single-inlet, multi-outlet check valve, characterized in that, The single-inlet, multi-outlet check valve includes a valve body, a valve cover covering the top of the valve body, and a valve core. The valve body has a flow chamber inside, an inlet communicating with the flow chamber at the bottom of the valve body, and at least two outlets communicating with the flow chamber on the side of the valve body. One end of the valve core abuts against the valve cover, and the other end of the valve core can block the connection between the inlet and the flow chamber.

2. The single-inlet, multi-outlet check valve according to claim 1, characterized in that, The valve cover includes a cover body and a sleeve portion, the sleeve portion extending from the cover body toward the valve body, and the sleeve portion fitting over the end of the valve body.

3. The single-inlet, multi-outlet check valve according to claim 2, characterized in that, The valve core is provided with a spring member inside. When the end of the valve body is sleeved on the sleeve part, the spring member extends out of the end of the valve body and abuts against the inner end of the sleeve part.

4. The single-inlet, multi-outlet check valve according to claim 3, characterized in that, A first sealing element is fitted on the outer periphery of the sleeve portion. When the valve cover is placed on top of the valve body, the end of the valve body is connected to the valve cover through the first sealing element.

5. The single-inlet, multi-outlet check valve according to claim 1, characterized in that, The valve cover and the valve body are detachably connected via a first connector.

6. The single-inlet, multi-outlet check valve according to claim 1, characterized in that, The valve core is provided with a second sealing element at the end that blocks the inlet, and the second sealing element is disposed on the end face of the valve core through a second connecting member.

7. The single-inlet, multi-outlet check valve according to claim 6, characterized in that, A contact protrusion is provided at the connection between the inlet and the flow cavity; When the valve core blocks the connection between the inlet and the flow chamber, the abutting protrusion abuts against the second seal.

8. The single-inlet, multi-outlet check valve according to claim 1, characterized in that, The valve body has two outlets, which are located opposite each other on the side of the valve body.

9. The single-inlet, multi-outlet check valve according to claim 1, characterized in that, The number of outlets is three, namely the first outlet, the second outlet, and the third outlet. The angle between the axis of the first outlet and the axis of the second outlet is 90 degrees, and the angle between the axis of the second outlet and the axis of the third outlet is 90 degrees.

10. The single-inlet, multi-outlet check valve according to claim 1, characterized in that, The valve body has four outlets, which are arranged in pairs on the side of the valve body.

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