Multi-way valve

Abstract

The utility model relates to the technical field of valves, in particular to a multi-way valve. The multi-way valve comprises a valve body, a valve element and a driving mechanism, a main channel, a plurality of valve cavities and a plurality of outlet channels are formed in the valve body, the outlet channels and the valve cavities are communicated and arranged in a one-to-one correspondence mode, and the main channel is communicated with an external liquid source; the valve element is rotationally connected to the valve body, a first channel and a second channel which communicate with each other are formed in the valve element, the first channel communicates with the main channel, and the driving mechanism is used for driving the valve element to rotate so that the second channel can communicate with any valve cavity. One valve can be used for switching a plurality of pipelines, so that the operation is simple; the occupied space of equipment is reduced, the overall pipeline design is more compact, and the space is saved; the number of valves is reduced, and the purchase cost of initial equipment and the long-term maintenance cost are reduced; and due to the design of the single multi-way valve, potential fault points are reduced, and the reliability and stability of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a multi-way valve. Background Art

[0002] Fluids are usually transported through pipelines. Traditional pipeline switching systems usually require multiple valves for control, with each valve responsible for opening and closing a pipeline. This leads to the following problems:

[0003] 1. Complex control system: The use of multiple valves requires a complex control system to manage the opening and closing status of each valve, which increases the complexity and maintenance cost of the system;

[0004] 2. Large space occupation: The arrangement of multiple valves takes up a large space, which is not conducive to the compact design of the equipment. This problem is more prominent in application scenarios with limited space.

[0005] 3. High cost: Each valve and its control system requires independent installation and maintenance, which not only increases the initial equipment cost, but also increases the long-term maintenance cost;

[0006] 4. Reliability issues: The use of multiple valves increases the possibility of failure. The failure of any valve may cause the failure of the entire system, reducing the reliability and stability of the system;

[0007] 5. Complex operation: The operation of multiple valves requires precise synchronization and coordination, which has high control requirements and increases the difficulty of operation and the risk of error.

[0008] Therefore, a multi-way valve is urgently needed to solve the above problems. Utility Model Content

[0009] The utility model aims to provide a multi-way valve, which can save space, improve the stability of the switching system, reduce the use cost and simplify the operation.

[0010] In order to achieve the above objectives, the following technical solutions are provided:

[0011] Multi-port valve, comprising:

[0012] A valve body, wherein the valve body is formed with a main channel, a plurality of valve chambers and a plurality of outlet channels, the outlet channels are connected to the valve chambers and are arranged in a one-to-one correspondence, and the main channel is connected to an external liquid source;

[0013] A valve core and a driving mechanism, wherein the valve core is rotatably connected to the valve body, and a first channel and a second channel are formed in the valve core, wherein the first channel is connected to the main channel, and the driving mechanism is used to drive the valve core to rotate so that the second channel is connected to any one of the valve cavities, thereby realizing the switching of different valve cavity flow channels.

[0014] As a preferred solution, the driving mechanism comprises:

[0015] A driving member, wherein the valve body is further provided with a mounting cavity, and the driving member is arranged in the mounting cavity;

[0016] A one-way transmission component is arranged at the output end of the driving member, and the valve core is arranged at the output end of the one-way transmission component to drive the valve core to rotate in one direction.

[0017] As a preferred solution, the one-way transmission assembly includes:

[0018] A swinging member, wherein the valve core has a fixed shaft, one end of the swinging member is sleeved on the peripheral side of the fixed shaft, and the other end of the swinging member is fixed to the output end of the driving member;

[0019] A ratchet wheel, the ratchet wheel is coaxially fixed with the fixed shaft;

[0020] A pawl is rotatably connected to the swing member and meshed with the ratchet wheel.

[0021] As a preferred solution, the one-way transmission assembly further includes:

[0022] An elastic connecting member, one end of which is connected to the ratchet, and the other end of which is connected to the swinging member.

[0023] As a preferred solution, a plurality of connecting channels are provided in the valve body, one end of the connecting channel is connected to the valve cavity, and the other end of the connecting channel can be connected to the second channel.

[0024] As a preferred solution, the valve core is provided with a first sealing member at the connecting passage.

[0025] As a preferred solution, the multi-way valve further includes:

[0026] A detection mechanism is configured to detect whether the valve core returns to an initial position.

[0027] As a preferred solution, the valve core is rotatably connected to the valve body via a bearing.

[0028] As a preferred solution, the multi-way valve further includes:

[0029] The valve cover is provided with an opening in the installation cavity, and the valve cover is used for covering the opening.

[0030] As a preferred solution, a through hole is formed at the bottom of the valve body, and the through hole is communicated with the installation cavity.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] The multi-way valve provided by the utility model includes a valve body, a valve core and a driving mechanism. The valve body is formed with a main channel, a plurality of valve chambers and a plurality of outlet channels. The outlet channels are connected to the valve chambers and are arranged one by one. The main channel is connected to an external liquid source. The valve core is rotatably connected to the valve body. A first channel and a second channel connected to each other are formed in the valve core. The first channel is connected to the main channel. The driving mechanism is used to drive the valve core to rotate so that the second channel is connected to any valve chamber. When working, the driving mechanism drives the valve body to rotate so that the second channel is connected to the target valve chamber, the external liquid source is opened, and the liquid passes through the main channel, the first channel, the second channel, the target valve chamber in sequence, and finally flows out through the outlet channel connected to the target valve chamber. One valve can switch multiple pipelines, and the operation is simple; the space occupied by the equipment is reduced, making the overall pipeline design more compact and saving space; the number of valves is reduced, and the initial equipment purchase cost and long-term maintenance costs are reduced; the design of a single multi-way valve reduces potential failure points and improves the reliability and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0034] Figure 1 One of the structural schematic diagrams of the multi-way valve provided in the embodiment of the utility model;

[0035] Figure 2 An exploded view of a multi-way valve provided in an embodiment of the utility model;

[0036] Figure 3 The second structural diagram of the multi-way valve provided in the embodiment of the utility model;

[0037] Figure 4 The third structural diagram of the multi-way valve provided in the embodiment of the utility model;

[0038] Figure 5 for Figure 3 Sectional view at AA in the middle;

[0039] Figure 6 for Figure 4 Sectional view at the middle BB;

[0040] Figure 7 A schematic diagram of the structure of the valve core provided in an embodiment of the utility model;

[0041] Figure 8 A cross-sectional view of a valve core provided in an embodiment of the utility model.

[0042] Reference numerals:

[0043] 100. Multi-way valve;

[0044] 10. Valve body; 11. Main channel; 12. Valve cavity; 13. Outlet channel; 14. Installation cavity; 15. Connecting channel; 16. Through hole;

[0045] 20. valve core; 21. first channel; 22. second channel; 23. fixed shaft; 24. end cover;

[0046] 30. Driving mechanism; 31. Driving member; 32. One-way transmission assembly; 321. Swinging member; 322. Ratchet; 323. Ratchet pawl; 324. Elastic connecting member;

[0047] 40. Valve cover;

[0048] 50. Detection mechanism; 51. Detection component; 52. Trigger component;

[0049] 61. First sealing member; 62. Second sealing member; 63. Third sealing member. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0051] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0052] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0054] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0056] like Figure 1-Figure 6As shown, this embodiment provides a multi-way valve 100, which includes a valve body 10, a valve core 20 and a driving mechanism 30. The valve body 10 is formed with a main channel 11, multiple valve chambers 12 and multiple outlet channels 13. The outlet channels 13 are connected to the valve chambers 12 and are arranged one by one. The main channel 11 is connected to an external liquid source; the valve core 20 is rotatably connected to the valve body 10, and a first channel 21 and a second channel 22 that are connected are formed in the valve core 20. The first channel 21 is connected to the main channel 11. The driving mechanism 30 is used to drive the valve core 20 to rotate so that the second channel 22 is connected to any valve chamber 12 to achieve switching of different valve chamber flow channels. During operation, the driving mechanism 30 drives the valve body 10 to rotate, so that the second channel 22 is connected to the target valve chamber 12, the external liquid source is opened, and the liquid passes through the main channel 11, the first channel 21, the second channel 22, and the target valve chamber 12 in sequence, and finally flows out through the outlet channel 13 connected to the target valve chamber 12. One valve can switch multiple pipelines, and the operation is simple; the space occupied by the equipment is reduced, making the overall pipeline design more compact and space-saving; the number of valves is reduced, reducing the initial equipment purchase cost and long-term maintenance costs; the design of a single multi-way valve 100 reduces potential failure points and improves the reliability and stability of the system.

[0057] like Figure 1 and Figure 2 As shown, the multi-way valve 100 further includes a valve cover 40 . The mounting cavity 14 has an opening, and the valve cover 40 is used to cover the opening.

[0058] like Figure 5 As shown, a plurality of connecting channels 15 are provided in the valve body 10 , one end of the connecting channel 15 is connected to the valve cavity 12 , and the other end of the connecting channel 15 can be connected to the second channel 22 , so that the second channel 22 can be better connected to the valve cavity 12 through the connecting channel 15 .

[0059] In order to improve the sealing performance of the connecting channel 15, Figure 5 As shown, the valve core 20 is provided with a first sealing member 61 at the connecting passage 15. The first sealing member 61 may be a sealing ring.

[0060] Combination Figure 2 , Figure 5 and Figure 6 The structure of the driving mechanism 30 is described as follows. Figure 2 , Figure 5 and Figure 6 As shown, the driving mechanism 30 includes a driving member 31 and a one-way transmission assembly 32. The valve body 10 is also provided with an installation cavity 14. The driving member 31 is arranged in the installation cavity 14. The one-way transmission assembly 32 is arranged at the output end of the driving member 31. The valve core 20 is arranged at the output end of the one-way transmission assembly 32 to drive the valve core 20 to rotate unidirectionally to ensure the stability of the connection between the second channel 22 and the target valve cavity 12.

[0061] Specifically, Figure 2 , Figure 5-Figure 8 As shown, the one-way transmission assembly 32 includes a swinging member 321, a ratchet 322 and a pawl 323. The valve core 20 has a fixed shaft 23. One end of the swinging member 321 is fixed to the fixed shaft 23, and the other end of the swinging member 321 is fixed to the output end of the driving member 31. The ratchet 322 is coaxially fixed to the fixed shaft 23. The pawl 323 is rotatably connected to the swinging member 321 and meshes with the ratchet 322. During operation, the driving member 31 drives the swinging member 321 to rotate around the axis of the fixed shaft 23, thereby driving the pawl 323 to move. The pawl 323 meshes with the ratchet 322, thereby causing the ratchet 322 to rotate around the axis of the fixed shaft 23, driving the fixed shaft 23 to rotate, so that the second channel 22 is connected to any connecting channel 15, and then the second channel 22 is connected to the target valve chamber 12, completing the switching of the pipeline. The driving member 31 may be an electric push rod, one end of which is rotatably connected to the valve body 10, and the other end of which is connected to the swing member 321. The electric push rod has the advantages of high precision and low maintenance cost. In other embodiments, in addition to using the driving mechanism 30 to realize the positioning and rotation of the valve core 20, a servo motor, an electric valve head, a pneumatic valve head, etc. may also be used to realize the above functions, which are not limited here.

[0062] Furthermore, the one-way transmission assembly 32 further includes an elastic connector 324, one end of which is connected to the ratchet 322, and the other end of which is connected to the swing member 321, to ensure that the pawl 323 is always engaged with the ratchet 322. Optionally, the elastic connector 324 is a spring.

[0063] The valve core 20 is rotatably connected to the valve body 10 via a bearing. The use of a bearing can reduce the friction resistance when the valve core 20 rotates.

[0064] A through hole 16 is formed at the bottom of the valve body 10 , and the through hole 16 is connected to the installation cavity 14 . When liquid flows into the installation cavity 14 , the liquid can flow out of the multi-way valve 100 through the through hole 16 .

[0065] like Figure 6 As shown, the valve core 20 further includes an end cover 24, and a third sealing member 63 is disposed between the end cover 24 and the fixed shaft 23. The third sealing member 63 is used to improve the sealing performance between the end cover 24 and the fixed shaft 23. Optionally, the third sealing member 63 may be a water seal.

[0066] A second sealing member 62 is provided between the valve cover 40 and the valve body 10 . The second sealing member 62 may be a silicone sealing ring, a rubber sealing ring or a Teflon sealing ring, etc., which can further improve the sealing performance of the multi-way valve 100 .

[0067] like Figure 2As shown, the multi-way valve 100 also includes a detection mechanism 50, which is configured to detect whether the valve core 20 returns to the initial position. Specifically, the detection mechanism 50 includes a detection member 51 and a trigger member 52, the detection member 51 is fixed on the valve cover 40, and the trigger member 52 is fixed on the ratchet 322 and can rotate with the ratchet 322. It can be understood that the multi-way valve 100 also includes a control component, and the detection member 51 is connected to the control component signal. When the trigger member 52 rotates to the detection member 51 with the ratchet 322, the detection member 51 transmits a signal to the control component, and the control component recognizes that the ratchet 322 is in the initial position at this time. Among them, the detection member 51 can be a proximity switch that can achieve the above functions.

[0068] It should be noted that the control component belongs to the prior art, and the present embodiment may adopt any control component that can realize the above functions.

[0069] For ease of understanding, combined Figure 1-Figure 8 The working process of the multi-way valve 100 is described as follows:

[0070] 1) The control component starts the driving member 31, and the driving member 31 drives the swinging member 321 to move, so that the pawl 323 clamps the ratchet 322, and the ratchet 322 rotates unidirectionally at a certain angle, thereby driving the valve core 20 to rotate synchronously;

[0071] 2) The rotation angle of the ratchet wheel 322 is determined by the control component counting the number of actions of the driving member 31. When the control component determines that the valve core 20 rotates to the position of the connecting channel 15 corresponding to the target valve chamber 12, the driving member 31 stops moving;

[0072] 3) When the valve core 20 is in the correct position, the control component starts the external liquid source, and the liquid enters the multi-way valve 100 through the main channel 11 and flows out through the corresponding outlet channel 13, realizing pipeline switching;

[0073] 4) When it is necessary to switch the pipeline again, the control component first stops the external liquid source, and then restarts the driving member 31 to drive the swing member 321, the pawl 323 and the ratchet wheel 322 to continue to rotate in one direction. After the valve core 20 rotates to the position of the connecting channel 15 corresponding to the next target valve cavity 12, the control component restarts the external liquid source to complete the new pipeline switching.

[0074] 5) When the valve core 20 completes a full rotation, the detection member 51 will confirm that the valve core 20 returns to the initial position and feed this information back to the control component to ensure that the number of actions of the driving member 31 accurately corresponds to the position of the valve core 20.

[0075] Note that in the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0076] The above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A multi-way valve, characterized in that: include: A valve body (10), the valve body (10) being formed with a main channel (11), a plurality of valve chambers (12) and a plurality of outlet channels (13), the outlet channels (13) being connected to the valve chambers (12) and being arranged in a one-to-one correspondence, and the main channel (11) being connected to an external liquid source; A valve core (20) and a driving mechanism (30), wherein the valve core (20) is rotatably connected to the valve body (10), a first channel (21) and a second channel (22) are formed in the valve core (20), the first channel (21) is connected to the main channel (11), and the driving mechanism (30) is used to drive the valve core (20) to rotate so that the second channel (22) is connected to any one of the valve chambers (12).

2. The multi-way valve according to claim 1, characterized in that: The driving mechanism (30) comprises: A driving member (31), wherein the valve body (10) is further provided with a mounting cavity (14), and the driving member (31) is arranged in the mounting cavity (14); A one-way transmission component (32) is arranged at the output end of the driving member (31), and the valve core (20) is arranged at the output end of the one-way transmission component (32) to drive the valve core (20) to rotate in one direction.

3. The multi-way valve according to claim 2, characterized in that: The one-way transmission assembly (32) comprises: A swinging member (321), the valve core (20) having a fixed shaft (23), one end of the swinging member (321) being sleeved on the circumference of the fixed shaft (23), and the other end of the swinging member (321) being fixed to the output end of the driving member (31); A ratchet wheel (322), wherein the ratchet wheel (322) is coaxially fixed to the fixed shaft (23); A ratchet pawl (323), the ratchet pawl (323) is rotatably connected to the swinging member (321) and meshes with the ratchet wheel (322).

4. The multi-way valve according to claim 3, characterized in that: The one-way transmission assembly (32) further comprises: An elastic connecting member (324), one end of the elastic connecting member (324) is connected to the ratchet (322), and the other end of the elastic connecting member (324) is connected to the swing member (321).

5. The multi-way valve according to any one of claims 1 to 4, characterized in that: A plurality of connecting channels (15) are provided in the valve body (10), one end of the connecting channel (15) is connected to the valve cavity (12), and the other end of the connecting channel (15) can be connected to the second channel (22).

6. The multi-way valve according to claim 5, characterized in that: The valve core (20) is provided with a first sealing member (61) at the connecting passage (15).

7. The multi-way valve according to any one of claims 1 to 4, characterized in that: The multi-way valve further comprises: A detection mechanism (50), wherein the detection mechanism (50) is configured to detect whether the valve core (20) returns to an initial position.

8. The multi-way valve according to any one of claims 1 to 4, characterized in that: The valve core (20) is rotatably connected to the valve body (10) via a bearing.

9. The multi-way valve according to claim 2, characterized in that: The multi-way valve further comprises: A valve cover (40), the installation cavity (14) has an opening, and the valve cover (40) is used to cover the opening.

10. The multi-way valve according to claim 2, characterized in that: A through hole (16) is provided at the bottom of the valve body (10), and the through hole (16) is communicated with the installation cavity (14).

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