Control valve

Abstract

The utility model discloses a control valve which comprises a valve element mechanism and a trigger mechanism, and the trigger mechanism comprises a trigger rod. The valve element mechanism comprises a valve body, a valve element and a valve element, a driving valve cavity and a plurality of driven valve cavities are arranged in the valve body, and each driven valve cavity is provided with a controlled port; the driving valve element is arranged in the driving valve cavity, and the driving valve element is provided with a first position and a second position which are located at the two ends of the moving stroke; a driving magnet is arranged in the driving valve core; each passive valve cavity is internally provided with the corresponding passive valve element, and each passive valve element is internally provided with a passive magnet; magnetic acting force is formed between the driving magnet of the driving valve element and the driven magnet of each driven valve element. When the active valve element is driven by the trigger rod to be switched between the first position and the second position, the active valve element drives the multiple passive valve elements to move along the passive valve cavity by means of the magnetic acting force between the active magnet and the passive magnet so as to control opening / closing of the corresponding controlled ports.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a control valve for controlling fluids. Background Art

[0002] Traditional valve components can usually only control the movement of a valve core through a trigger (drive) component (structure), which results in a valve component usually only being able to control the on-off of a fluid pipeline. In turn, many such valve components need to be arranged in a fluid system with many fluid pipelines. This not only requires a larger installation space for the fluid system, but also has a high cost, which does not meet the requirements for the intensive development of the fluid system.

[0003] Although technicians have also tried to control the actions of multiple valve cores simultaneously through a trigger component, the linkage relationship between the trigger component and the valve core is usually achieved through mechanical transmission, which has the following typical defects or deficiencies:

[0004] 1. In order to realize certain movement characteristics of the valve core, it is necessary to construct a complex transmission structure and / or transmission components in the valve body of the valve component, which is bound to make the internal structure of the valve body too complicated. Since the valve component is usually a small component, the complex internal structure is bound to increase the manufacturing difficulty and production cost of the valve component.

[0005] 2. Mechanical transmission requires the moving parts to be in contact with each other, and cannot achieve transmission in a phase-isolated state.

[0006] 3. The use of mechanical transmission will significantly increase the wear and tear of moving parts and related structures, thereby affecting the use effect and service life. Utility Model Content

[0007] In view of the above technical problems existing in the prior art, an embodiment of the present utility model provides a control valve.

[0008] In order to solve the above technical problems, the technical solutions adopted in the embodiments of the present invention are:

[0009] A control valve includes a valve core mechanism and a trigger mechanism, wherein the trigger mechanism includes a trigger rod; the valve core mechanism includes:

[0010] A valve body, wherein an active valve cavity and a plurality of passive valve cavities are configured therein, and each of the passive valve cavities has a controlled port;

[0011] an active valve core disposed in the active valve cavity and capable of moving along the active valve cavity, such that the active valve core has a first position and a second position located at two ends of a moving stroke, and the active valve core is driven by the trigger rod to switch between the first position and the second position; an active magnet is disposed in the active valve core;

[0012] A passive valve core, wherein each passive valve cavity is provided with a passive valve core, the passive valve core being capable of moving along the passive valve cavity and controlling the opening / closing of a controlled port in the passive valve cavity by movement, the passive valve core being provided with a passive magnet; a magnetic force is formed between the active magnet of the active valve core and the passive magnet in each passive valve core; wherein:

[0013] When the active valve core is driven by the trigger rod to switch between the first position and the second position, the active valve core drives the multiple passive valve cores to move along the passive valve cavity by means of the magnetic force between the active magnet and the passive magnet to control the opening / closing of the corresponding controlled ports.

[0014] Preferably, the plurality of passive valve chambers are circumferentially arranged around the active valve chamber, so that the plurality of passive valve cores are circumferentially arranged around the active valve core.

[0015] Preferably, the extension direction of the passive valve chamber is parallel to the extension direction of the active valve chamber, so that the movement direction of the passive valve core is parallel to the movement direction of the active valve core.

[0016] Preferably, the extension direction of the passive valve chamber is perpendicular to the extension direction of the active valve chamber, so that the movement direction of the passive valve core is perpendicular to the movement direction of the active valve core.

[0017] Preferably, when the active valve core is switched to the first position or the second position, the open / closed state of the controlled port corresponding to at least one of the passive valve cores is different from that of the remaining passive valve cores.

[0018] Preferably, the controlled port at the passive valve cavity is located at the end of the passive valve cavity; the multiple passive valve cores move synchronously and in the same direction; the controlled port corresponding to at least one of the passive valve cavities is located at a different end from the controlled ports corresponding to the remaining passive valve cavities.

[0019] Preferably, the active valve chamber has a controlled port, and the active valve core controls the controlled port of the active valve chamber by moving between the first position and the second position.

[0020] Preferably, the active valve core is maintained at the switched position after being switched to the first position or the second position.

[0021] Preferably, a positioning magnet is provided in the valve body, and the magnetic force between the positioning magnet, the passive magnet and the active magnet enables the active valve core to remain in the switched position after being switched to the first position or the second position.

[0022] Preferably, the magnetic pole direction of the active magnet is consistent with the moving direction of the active valve core, or the magnetic pole direction of the active magnet is perpendicular to the moving direction of the active valve core;

[0023] The magnetic pole direction of the passive magnet is consistent with the moving direction of the passive valve core.

[0024] Preferably, the magnetic pole direction of the active magnet is consistent with the moving direction of the active valve core;

[0025] The positioning magnet is located between the active valve core and the passive valve core and surrounds the active valve core;

[0026] The magnetic pole direction of the positioning magnet is consistent with the magnetic pole direction of the active magnet.

[0027] Preferably, the magnetic pole direction of the active magnet is perpendicular to the moving direction of the active valve core;

[0028] The positioning magnet is located between the active valve core and the passive valve core and surrounds the active valve core;

[0029] The magnetic pole direction of the positioning magnet is perpendicular to the magnetic pole direction of the active magnet.

[0030] Preferably, the magnetic pole direction of the active magnet is consistent with the moving direction of the active valve core;

[0031] The magnetic pole direction of the positioning magnet is perpendicular to the magnetic pole direction of the active magnet;

[0032] The positioning magnet is located on an opposite side of the active valve core relative to the passive valve core such that the positioning magnet is away from the passive magnet.

[0033] Preferably, an electromagnetic sensor is installed in the valve body, and the electromagnetic sensor sends an electrical signal in response directly or indirectly to a change in magnetic induction caused by a change in the position of the active valve core.

[0034] Preferably, the trigger mechanism further includes a pressure collection port, a pressure-bearing drive component connected to the trigger rod and configured to drive the active valve core by receiving the pressure of the fluid, and a spring sleeved on the trigger rod for applying elastic force to the pressure-bearing drive component;

[0035] The pressure-bearing driving component is a flexible membrane provided at the pressure collection port, and the flexible membrane drives the active valve core by deformation with the aid of the trigger rod; or the pressure-bearing driving component is a piston provided at the pressure collection port, and the piston drives the active valve core by movement with the aid of the trigger rod.

[0036] Preferably, the trigger mechanism further includes an electromagnetic driver, and the electromagnetic driver drives the trigger rod to move.

[0037] Compared with the prior art, the control valve disclosed in the utility model has the following beneficial effects:

[0038] 1. By configuring multiple groups of controlled ports in the valve body and multiple passive valve cores for correspondingly controlling each controlled port, the control valve can simultaneously control the on / off of multiple fluid pipelines in the fluid system, thereby meeting the intensive requirements for the layout and control of pipelines in the fluid system.

[0039] 2. The magnetic force between the magnets is used to form a linkage between the valve cores to control the opening and closing of the controlled port, which can greatly simplify the internal structure of the valve body and significantly extend the service life of the control valve.

[0040] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention.

[0041] The overview of various implementations or examples of the technology described in this utility model is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the description and claims, serve to illustrate the embodiments of the utility model. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0043] Figure 1 This is a main sectional view of the control valve provided in Example 1 in use (the active valve core is in the first position).

[0044] Figure 2 This is a main sectional view of the control valve provided in Example 1 in use (the active valve core is in the second position).

[0045] Figure 3 This is a cross-sectional view of the control valve provided in Example 1.

[0046] Figure 4 This is a main sectional view of the control valve provided in Example 2 in use (the active valve core is in the first position).

[0047] Figure 5This is a main sectional view of the control valve provided in Example 3 in use (the active valve core is in the second position).

[0048] Figure 6 This is a cross-sectional view of the control valve provided in Example 3.

[0049] Figure 7 This is a main sectional view of the control valve provided in Example 4 in use (the active valve core is in the second position).

[0050] Figure 8 This is a cross-sectional view of the control valve provided in Example 4.

[0051] Figure 9 This is a main sectional view of the control valve provided in Example 5 in use (the active valve core is in the second position).

[0052] Figure 10 This is a cross-sectional view of the control valve provided in Example 5.

[0053] Reference numerals:

[0054] 10-valve core mechanism; 11-valve body; 111-active valve chamber; 112-passive valve chamber; 113-first port; 114-second port; 161-exhaust flow path; 162-exhaust chamber; 163-exhaust hole; 121-active valve core; 122-passive valve core; 123-electromagnetic sensor; 131-active magnet; 132-passive magnet; 133-positioning magnet; 20-trigger mechanism; 21-trigger rod; 22-spring; 23-flexible membrane; 24-pressure collection port; 25-trigger magnet; 26-electromagnetic coil. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0057] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0058] Example 1

[0059] like Figures 1 to 4 As shown, the control valve disclosed in this embodiment includes: a valve core mechanism 10 and a trigger mechanism 20.

[0060] The valve core mechanism 10 includes a valve body 11 , an active valve core 121 , a passive valve core 122 , an active magnet 131 , a passive magnet 132 and a positioning magnet 133 .

[0061] An active valve cavity 111 and multiple passive valve cavities 112 are arranged in the valve body 11. The extension direction of each passive valve cavity 112 is consistent with the extension direction of the active valve cavity 111, and all the passive valve cavities 112 are arranged circumferentially around the active valve cavity 111; the active valve core 121 is arranged in the active valve cavity 111 and can move along the active valve cavity 111, and each passive valve core 122 is provided in the passive valve cavity 112, and each passive valve core 122 can move along the corresponding passive valve cavity 112; an active magnet 131 is provided in the active valve core 121, and a passive magnet 132 is provided in the passive valve core 122. The magnetic pole direction of the active magnet 131 is consistent with the moving direction of the active valve core 121, and the magnetic pole direction of the passive magnet 132 is consistent with the moving direction of the passive valve core 122, so that, The magnetic pole direction of the passive magnet 132 is the same as that of the active magnet 131, that is, both are facing the vertical direction; the active magnet 131 and each passive magnet 132 have the same magnetic pole direction, and the active magnet 131 and the passive magnet 132 are each a magnet unit; the positioning magnet 133 is fixed in the valve body 11 and is between the active magnet 131 and the passive magnet 132, and the positioning magnet 133 is arranged circumferentially around the active magnet 131, the positioning magnet 133 is an annular magnet, the magnetic pole direction of the positioning magnet 133 is the same as that of the active magnet 131, and the opposite magnetic poles of the positioning magnet 133 and the active magnet 131 are facing the same direction, the positioning magnet 133 is formed by stacking two magnet units, and the sum of the lengths of the two magnet units of the positioning magnet 133 is twice the length of the active magnet 131.

[0062] It should state:

[0063] In the present invention, opposite magnetic poles facing the same direction means that the magnetic poles of different polarities of two magnets face the same direction. For example, if the north pole of one of the two magnets faces upward (downward) and the south pole of the other magnet also faces upward (downward), the opposite magnetic poles of the two magnets are said to face the same direction. Correspondingly, if the north pole of one of the two magnets faces upward and the north pole of the other magnet also faces upward, the like magnetic poles of the two magnets are said to face the same direction.

[0064] The magnetic pole direction refers to the direction of the north and south poles of a magnet. For example, for a magnet with its north pole pointing upward (downward) and its south pole pointing downward (upward), the magnetic pole direction of the magnet is vertical. Correspondingly, for a magnet with its north pole pointing leftward (rightward) and its south pole pointing rightward (leftward), the magnetic pole direction of the magnet is horizontal. Generally speaking, two magnets with the same magnetic pole direction can be understood as being parallel to each other; two magnets with perpendicular magnetic pole directions can be understood as being perpendicular to each other; the length of a magnet can be understood as the size of the magnet in the direction of the magnetic pole, and the thickness of a magnet can be understood as the size of the magnet in the direction perpendicular to the magnetic pole.

[0065] The active valve core 121 has a first position and a second position at both ends of the moving stroke. The trigger mechanism 20 can and is used to drive the active valve core 121 to switch between the first position and the second position. Moreover, moving the active valve core 121 to the upper end position of the moving stroke is called the first position, and moving the active valve core 121 to the lower end position of the moving stroke is called the second position.

[0066] When the active valve core 121 switches between the first position and the second position, the active valve core 121 drives all the passive valve cores 122 to move by the magnetic force between the active magnet 131, the positioning magnet 133 and each passive magnet 132. Specifically, Figure 2 As shown, when the active valve core 121 switches from the first position to the second position, the magnetic force causes all the passive valve cores 122 to move synchronously from the lower end of the passive valve cavity 112 to the upper end of the passive valve cavity 112, as shown in FIG. Figure 1 As shown, when the active valve core 121 switches from the second position to the first position, the magnetic force causes all the passive valve cores 122 to move synchronously from the upper end of the passive valve core 122 to the lower end of the passive valve chamber 112, and the magnetic force causes the active valve body 11 to remain in the switched position after switching to the first position or the second position.

[0067] Each passive valve cavity 112 corresponds to a group of controlled ports, and each group of controlled ports specifically includes two ports, namely, a first port 113 and a second port 114. The first port 113 passes through the axial end of the passive valve cavity 112, and the second port 114 passes through the cavity wall of the passive valve cavity 112 and is adjacent to the first port 113. The first port 113 and the second port 114 are connected to a pipeline of the fluid system. In this way, the on / off of the pipeline can be controlled by controlling the opening and closing of the first port 113 and / or the second port 114.

[0068] Among all the passive valve chambers 112, the controlled ports corresponding to some of the passive valve chambers 112 are located at the lower end of the passive valve chamber 112, and the controlled ports corresponding to the remaining passive valve chambers 112 are located at the upper end of the passive valve chamber 112. In this way, after the active valve core 121 switches from the first position to the second position and drives all the passive valve cores 122 to move upward to the upper end of the passive valve chamber 112, as shown in FIG. Figure 2 As shown, the controlled port at the lower end of the passive valve chamber 112 is opened (i.e., the first port and the second port are opened), and the controlled port at the upper end of the passive valve chamber 112 is closed (i.e., the first port and the second port are closed); after the active valve core 121 switches from the second position to the first position and drives all the passive valve cores 122 to move down to the lower end of the passive valve chamber 112, as shown Figure 1As shown, the controlled port located at the lower end of the passive valve chamber 112 is closed, and the controlled port located at the upper end of the passive valve chamber 112 is opened. In this way, the control valve provided by this embodiment can simultaneously control the on / off of multiple pipelines in a fluid system (such as a water purification system).

[0069] The trigger mechanism 20 includes a trigger rod 21, a pressure collection port 24, a pressure-bearing drive component, and a spring 22. The pressure collection port 24 is connected to a pipeline in the fluid system via a hydraulic control line. A pressure storage chamber is provided in the valve body 11. The pressure-bearing drive component is disposed in the pressure storage chamber and faces the pressure collection port 24. The lower end of the trigger rod 21 is connected to the active valve core 121, and the upper end of the trigger rod 21 is connected to the pressure-bearing drive component. The spring 22 is sleeved on the trigger rod 21 to apply an upward elastic force to the trigger rod 21. When the fluid pressure in the pipeline of the fluid system connected to the pressure collection port 24 increases, the pressure in the pressure collection port 24 increases to the point where it forces the pressure-bearing drive component to move downward, as shown in FIG. Figure 2 As shown, the pressure-bearing driving component drives the trigger rod 21 downward by moving downward, so that the active valve core 121 switches from the first position to the second position; when the fluid pressure in the pipeline of the fluid system decreases, the pressure of the pressure collection port 24 is reduced to a level that the spring 22 can reset and drive the trigger rod 21 to move upward, as shown in FIG. Figure 1 As shown, the trigger rod 21 moves upward to switch the active valve core 121 from the second position to the first position.

[0070] The valve body 11 is also provided with an exhaust chamber 162, which is connected to the pressure storage chamber below the pressure-bearing driving component through the exhaust flow path 161 on the one hand, and is connected to the outside atmosphere through the exhaust hole 163 on the other hand. In this way, the pressure storage chamber below the diaphragm 23 is connected to the atmosphere, thereby balancing the pressure in the pressure storage chamber below the diaphragm 23 and avoiding the gas pressure in the pressure storage chamber at this position from generating impedance to the downward or upward deformation of the diaphragm 23.

[0071] It should be noted that in this embodiment, the pressure-bearing drive component can be a flexible membrane 23 (shown in the drawings) or a piston (not shown) disposed at the pressure collection port 24. The flexible membrane 23 deforms downward to drive the active valve core 121 via the trigger rod 21, while the piston drives the active valve core 121 by moving downward. The flexible membrane 23 is used in conditions with lower operating pressures, while the piston is used in conditions with higher operating pressures.

[0072] The control valve provided in this embodiment has at least the following advantages:

[0073] 1. By configuring multiple groups of controlled ports in the valve body 11 and multiple passive valve cores 122 for correspondingly controlling each controlled port, the control valve can simultaneously control the on / off of multiple fluid pipelines in the fluid system, thereby meeting the requirements for the intensive layout and control of the pipelines in the fluid system.

[0074] 2. The magnetic force between the magnets is used to form a linkage between the valve cores to control the opening and closing of the controlled port, thereby greatly simplifying the internal structure of the valve body 11 and significantly extending the service life of the control valve.

[0075] 3. By arranging a pressure collection port 24 and a diaphragm 23 on the valve body 11, the valve core inside the control valve can be driven to move based on the pressure of the fluid in the pipeline of the fluid system, so that the pressure changes in one or some pipelines in the fluid system can be used to control the on / off of other pipelines (which are connected to the controlled port of the control valve) through the control valve.

[0076] Example 2

[0077] like Figure 4 As shown, the control valve disclosed in this embodiment includes a valve core mechanism 10 and a trigger mechanism 20. The valve core mechanism 10 in the control valve of this embodiment is substantially the same as the valve core mechanism 10 in the control valve of Example 1, while the trigger mechanism 20 in the control valve of this embodiment is different from the trigger mechanism 20 in the control valve of Example 1.

[0078] In this embodiment, the trigger mechanism 20 includes a trigger rod 21, an electromagnetic coil 26, and a trigger magnet 25. The lower end of the trigger rod 21 is connected to the active valve core 121, and the upper portion of the trigger rod 21 extends into the electromagnetic coil 26. The trigger magnet 25 is disposed above the trigger rod 21. By passing current (positive and negative current) through the electromagnetic coil 26, a magnetic force is generated between the electromagnetic coil 26 and the trigger magnet 25. This magnetic force drives the trigger rod 21 to move, thereby driving the active valve core 121 to switch between the first and second positions.

[0079] In some preferred structures of this embodiment, Figure 4 As shown, an electromagnetic sensor 123 is installed in the valve body 11. The electromagnetic sensor 123 sends an electrical control signal in response to the change in magnetic induction caused by the position change of the passive valve core 122, or the electromagnetic sensor 123 sends an electrical control signal in response to the change in magnetic induction caused by the position change of the active valve core 121. In this way, the control valve of this embodiment can also remotely control some electrical signal-controlled components, such as electromagnetic switch valves, through the electromagnetic sensor 123.

[0080] The control valve provided in this embodiment has at least the following advantages:

[0081] 1. The control valve disclosed in this embodiment has the first and second advantages of embodiment 1.

[0082] 2. This embodiment uses electricity to control the movement of the valve core.

[0083] Example 3

[0084] like Figure 5 and Figure 6 As shown, the control valve disclosed in this embodiment includes: a valve core mechanism 10 and a trigger mechanism 20.

[0085] The valve core mechanism 10 includes: a valve body 11, an active valve core 121, a passive valve core 122, an active magnet 131, and a passive magnet 132; the arrangement of the active valve cavity 111 and the passive valve cavity 112, the active valve core 121, the passive valve core 122, the active magnet 131, the passive magnet 132, and the positioning magnet 133 in the valve body 11 of this embodiment is different from that in Example 1, and the positioning magnet 133 is not provided in this embodiment.

[0086] An active valve chamber 111 and a plurality of passive valve chambers 112 are arranged in the valve body 11. The active valve chamber 111 extends vertically, and each passive valve chamber 112 extends radially. In addition, all the passive valve chambers 112 are arranged circumferentially around the active valve chamber 111. An active valve core 121 is arranged in the active valve chamber 111 and can move along the active valve chamber 111. Thus, the active valve core 121 moves in the vertical direction. Each passive valve chamber 112 is provided with a passive valve core 122. Each passive valve core 122 can move in the vertical direction. It can move along the corresponding passive valve cavity 112, so that the passive valve core 122 moves in the radial direction; an active magnet 131 is provided in the active valve core 121, and a passive magnet 132 is provided in the passive valve core 122. The magnetic pole direction of the active magnet 131 is consistent with the moving direction of the active valve core 121, and the magnetic pole direction of the passive magnet 132 is consistent with the moving direction of the passive valve core 122. Therefore, the magnetic pole direction of each passive magnet 132 is perpendicular to the magnetic pole direction of the active magnet 131.

[0087] The active valve core 121 has a first position and a second position at both ends of the moving stroke. The trigger mechanism 20 can and is used to drive the active valve core 121 to switch between the first position and the second position. The position where the active valve core 121 moves to the upper end of the moving stroke is called the first position, and the position where the active valve core 121 moves to the lower end of the moving stroke is called the second position. When switching to the second position, a magnetic repulsion force is formed between the radial inner ends of some of the passive magnets 132 and the upper end of the active magnet 131, and a magnetic attraction force is formed between the radial inner ends of other passive magnets 132 and the upper end of the active magnet 131. Therefore, after the active valve core 121 switches from the first position to the second position, the passive valve cores 122 corresponding to some of the passive magnets 132 move from the radial inner end of the passive valve cavity 112 to the radial outer end of the passive valve cavity 112, and the passive valve cores 122 corresponding to other passive magnets 132 move from the radial outer end of the passive valve cavity 112 to the radial inner end of the passive valve cavity 112. When switching to the first position, a magnetic attraction is formed between the radial inner ends of some of the passive magnets 132 and the lower end of the active magnet 131, and a magnetic repulsion is formed between the radial inner ends of the other passive magnets 132 and the lower end of the active magnet 131. Therefore, after the active valve core 121 switches from the second position to the first position, the passive valve cores 122 corresponding to some of the passive magnets 132 move from the radial outer end of the passive valve cavity 112 to the radial inner end of the passive valve cavity 112, and the passive valve cores 122 corresponding to the other passive magnets 132 move from the radial inner end of the passive valve cavity 112 to the radial outer end of the passive valve cavity 112.

[0088] Each passive valve cavity 112 corresponds to a group of controlled ports, and each group of controlled ports specifically includes two ports, namely, a first port 113 and a second port 114. The first port 113 of the controlled ports corresponding to all passive valve cavities 112 passes through the radial end of the passive valve cavity 112, and the corresponding second port 114 passes through the cavity wall of the passive valve cavity 112 and is adjacent to the first port 113. The first port 113 and the second port 114 are connected to a pipeline of the fluid system. In this way, the on / off of the pipeline can be controlled by controlling the opening and closing of the first port 113 and / or the second port 114.

[0089] After the active valve core 121 switches from the first position to the second position, the passive valve cores 122 corresponding to some of the passive magnets 132 move to the radial outer end of the passive valve cavity 112 and close the corresponding controlled ports, and the passive valve cores 122 corresponding to other passive magnets 132 move to the radial inner end of the passive valve cavity 112 and open the corresponding controlled ports.

[0090] Another difference between Example 3 and Example 1 is that the active valve chamber 111 is also provided with a controlled port. A first port 113 of the controlled port extends through the axial lower end of the active valve chamber 111, and a second port 114 extends through the wall of the active valve chamber 111 and is adjacent to the first port 113. When the active valve spool 121 switches from the first position to the second position, the controlled port of the active valve chamber 111 is closed. When the active valve spool 121 switches from the second position to the first position, the controlled port of the active valve chamber 111 is opened.

[0091] The trigger mechanism 20 of this embodiment includes a trigger rod 21, the lower end of which is connected to the active valve core 121. In this embodiment, the trigger rod 21 can be driven manually, or as in Embodiments 1 and 2, the trigger rod 21 can be driven by the pressure of the fluid or the electromagnetic force generated by the electromagnetic coil 26.

[0092] The control valve provided in this embodiment has at least the following advantages:

[0093] The control valve disclosed in this embodiment has the first and second advantages of the first embodiment.

[0094] Example 4

[0095] like Figure 7 and Figure 8 As shown, the control valve disclosed in this embodiment includes: a valve core mechanism 10 and a trigger mechanism 20; the main difference between the valve core mechanism 10 in the control valve of this embodiment and the valve core mechanism 10 in Example 1 lies in the arrangement direction of the magnetic poles of the active magnet 131 in the active valve core 121.

[0096] Specifically, the valve core mechanism 10 includes a valve body 11, an active valve core 121, a passive valve core 122, an active magnet 131, a passive magnet 132, and a positioning magnet 133. The valve body 11 includes a vertically extending active valve cavity 111 and a plurality of passive valve cavities 112 circumferentially arranged around the active valve cavity 111. Each passive valve cavity 112 extends vertically. The active valve core 121 is disposed in the active valve cavity 111, and each passive valve core 122 is disposed in a corresponding passive valve cavity 112. Thus, all passive valve cores 122 move in the same direction as the active valve core 121. The active magnet 131 is disposed in the active valve core 121, and the passive magnet 132 is disposed in the passive valve core 122. The magnetic pole direction of the passive magnet 132 is consistent with the movement direction of the passive valve core 122, and the magnetic pole direction of the active magnet 131 is perpendicular to the magnetic pole direction of the passive magnet 132. The positioning magnet 133 is interposed between the active valve core 121 and each passive valve core 122. The magnetic poles of the positioning magnet 133 and the passive magnet 132 are aligned and perpendicular to the magnetic poles of the active magnet 131. The positioning magnet 133 is formed by stacking two magnet units in the length direction, while the active magnet 131 is formed by stacking two magnet units in the thickness direction. The sum of the thicknesses of the two magnet units of the active magnet 131 is equal to the length of any one magnet unit of the positioning magnet 133.

[0097] The linkage relationship between the active valve core 121 and the passive valve core 122 of this embodiment is similar to the linkage relationship of Example 1, that is, when the trigger mechanism 20 drives the active valve core 121 to switch between the first position and the second position, a part of the passive valve core 122 closes the controlled port of the corresponding passive valve cavity 112, while the other part of the passive valve core 122 opens the controlled port of the corresponding passive valve cavity 112.

[0098] Similar to Example 3, the end of the active valve chamber 111 of the control valve of this embodiment is also configured with a controlled port, so that when the active valve core 121 switches between the first position and the second position, the active valve core 121 controls the controlled port of the active valve chamber 111 to open or close.

[0099] Similar to the third embodiment, the trigger mechanism 20 of this embodiment also includes a trigger rod 21 , which can be driven to move manually, hydraulically, or electromagnetically.

[0100] The control valve provided in this embodiment has at least the following advantages:

[0101] 1. The control valve disclosed in this embodiment has the first and second advantages of embodiment 1.

[0102] 2. After the active valve core 121 in the control valve disclosed in this embodiment is switched to the first position or the second position, it maintains better stability in the switched position.

[0103] Example 5

[0104] like Figure 9 and Figure 10 As shown, the control valve disclosed in this embodiment includes a valve core mechanism 10 and a trigger mechanism 20. Compared with Example 3, the valve core mechanism 10 in this embodiment is additionally provided with a positioning magnet 133; the trigger mechanism 20 in this embodiment is the same as the trigger mechanism 20 in Example 3.

[0105] The valve core mechanism 10 includes a valve body 11 , an active valve core 121 , a passive valve core 122 , an active magnet 131 , a passive magnet 132 and a positioning magnet 133 .

[0106] An active valve chamber 111 and multiple passive valve chambers 112 are configured in the valve body 11. The active valve chamber 111 extends vertically, and each passive valve chamber 112 extends radially. The difference from Example 3 is that the passive valve chambers 112 are not arranged in a circle around the active valve chamber 111, but are arranged within half a circle, thereby reserving a certain space for the positioning magnet 133. The active valve core 121 is arranged in the active valve cavity 111 and can move the active valve cavity 111, so that the active valve core 121 moves in the vertical direction, each passive valve cavity 112 is provided with a passive valve core 122, and each passive valve core 122 can move along the corresponding passive valve cavity 112, so that the passive valve core 122 moves in the radial direction; an active magnet 131 is provided in the active valve core 121, and a passive magnet 132 is provided in the passive valve core 122, the magnetic pole direction of the active magnet 131 is consistent with the moving direction of the active valve core 121, and the magnetic pole direction of the passive magnet 132 is consistent with the moving direction of the passive valve core 122, so that the magnetic pole direction of each passive magnet 132 is perpendicular to the magnetic pole direction of the active magnet 131. The positioning magnet 133 is arranged in the valve body 11 and is located on the side away from the passive valve core 122. The positioning magnet 133 is formed by stacking four magnet units in the thickness direction. The magnetic pole direction of each magnet unit of the positioning magnet 133 is perpendicular to the magnetic pole direction of the active magnet 131, and the opposite magnetic poles of each two adjacent magnet units in the positioning magnet 133 are oriented in the same direction. The sum of the thickness of the two magnet units in the positioning magnet 133 is equal to the length of the active magnet 131.

[0107] When the active valve core 121 switches between the first position and the second position, all the passive valve cores 122 move radially, and some passive valve cores 122 move to the radial outer end of the corresponding passive valve cavity 112 to close the controlled port, while other passive valve cores 122 move to the radial inner end of the corresponding passive valve cavity 112 to open the controlled port.

[0108] The end of the active valve chamber 111 of this embodiment is also provided with a controlled port, so that the active valve core 121 opens or closes the controlled port when switching between the first position and the second position.

[0109] The control valve provided in this embodiment has at least the following advantages:

[0110] 1. The control valve disclosed in this embodiment has the first and second advantages of embodiment 1.

[0111] 2. After the active valve core 121 in the control valve disclosed in this embodiment is switched to the first position or the second position, it maintains better stability in the switched position.

[0112] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., solutions that cross various embodiments), adaptations, or changes. The elements in the claims are to be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the prosecution of this application, which examples are to be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0113] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of their solutions) can be used in combination with each other. For example, a person of ordinary skill in the art may use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the utility model. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the utility model may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the utility model should be determined with reference to the appended claims and the full scope of equivalents to which these claims are entitled.

[0114] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A control valve, characterized in that: It includes a valve core mechanism and a trigger mechanism, wherein the trigger mechanism includes a trigger rod; the valve core mechanism includes: A valve body, wherein an active valve cavity and a plurality of passive valve cavities are configured therein, and each of the passive valve cavities has a controlled port; an active valve core disposed in the active valve cavity and capable of moving along the active valve cavity, such that the active valve core has a first position and a second position located at two ends of a moving stroke, and the active valve core is driven by the trigger rod to switch between the first position and the second position; an active magnet is disposed in the active valve core; A passive valve core, wherein each passive valve cavity is provided with a passive valve core, the passive valve core being capable of moving along the passive valve cavity and controlling the opening / closing of a controlled port in the passive valve cavity by movement, the passive valve core being provided with a passive magnet; a magnetic force is formed between the active magnet of the active valve core and the passive magnet in each passive valve core; wherein: When the active valve core is driven by the trigger rod to switch between the first position and the second position, the active valve core drives the multiple passive valve cores to move along the passive valve cavity by means of the magnetic force between the active magnet and the passive magnet to control the opening / closing of the corresponding controlled ports.

2. The control valve according to claim 1, characterized in that The plurality of passive valve chambers are circumferentially arranged around the active valve chamber, so that the plurality of passive valve cores are circumferentially arranged around the active valve core.

3. The control valve according to claim 2, characterized in that The extension direction of the passive valve chamber is parallel to the extension direction of the active valve chamber, so that the movement direction of the passive valve core is parallel to the movement direction of the active valve core.

4. The control valve according to claim 2, characterized in that The extension direction of the passive valve chamber is perpendicular to the extension direction of the active valve chamber, so that the movement direction of the passive valve core is perpendicular to the movement direction of the active valve core.

5. The control valve according to claim 1, wherein: When the active valve core is switched to the first position or the second position, the open / closed state of the controlled port corresponding to at least one of the passive valve cores is different from that of the other passive valve cores.

6. The control valve according to claim 5, characterized in that The controlled port at the passive valve cavity is located at the end of the passive valve cavity; the multiple passive valve cores move synchronously and in the same direction; the controlled port corresponding to at least one passive valve cavity is located at a different end from the controlled ports corresponding to the remaining passive valve cavities.

7. The control valve according to claim 5, characterized in that The active valve chamber has a controlled port, and the active valve core controls the controlled port of the active valve chamber by moving between the first position and the second position.

8. The control valve according to claim 2, characterized in that The active valve core is ensured to remain in the switched position after being switched to the first position or the second position.

9. The control valve according to claim 8, characterized in that A positioning magnet is provided in the valve body, and the magnetic force between the positioning magnet, the passive magnet and the active magnet enables the active valve core to remain in the switched position after being switched to the first position or the second position.

10. The control valve according to claim 9, characterized in that The magnetic pole direction of the active magnet is consistent with the moving direction of the active valve core, or the magnetic pole direction of the active magnet is perpendicular to the moving direction of the active valve core; The magnetic pole direction of the passive magnet is consistent with the moving direction of the passive valve core.

11. The control valve according to claim 10, characterized in that The magnetic pole direction of the active magnet is consistent with the moving direction of the active valve core; The positioning magnet is located between the active valve core and the passive valve core and surrounds the active valve core; The magnetic pole direction of the positioning magnet is consistent with the magnetic pole direction of the active magnet.

12. The control valve according to claim 10, wherein: The magnetic pole direction of the active magnet is perpendicular to the moving direction of the active valve core; The positioning magnet is located between the active valve core and the passive valve core and surrounds the active valve core; The magnetic pole direction of the positioning magnet is perpendicular to the magnetic pole direction of the active magnet.

13. The control valve according to claim 10, wherein: The magnetic pole direction of the active magnet is consistent with the moving direction of the active valve core; The magnetic pole direction of the positioning magnet is perpendicular to the magnetic pole direction of the active magnet; The positioning magnet is located on an opposite side of the active valve core relative to the passive valve core such that the positioning magnet is away from the passive magnet.

14. The control valve according to claim 1, wherein An electromagnetic sensor is installed in the valve body, and the electromagnetic sensor sends an electrical signal in response directly or indirectly to a change in magnetic induction caused by a change in the position of the active valve core.

15. The control valve according to claim 1, wherein The trigger mechanism further includes a pressure collection port, a pressure-bearing drive component connected to the trigger rod and configured to drive the active valve core by receiving the pressure of the fluid, and a spring sleeved on the trigger rod for applying elastic force to the pressure-bearing drive component; The pressure-bearing driving component is a flexible membrane provided at the pressure collection port, and the flexible membrane drives the active valve core by deforming and with the aid of the trigger rod; or, The pressure-bearing driving component is a piston arranged at the pressure collection port, and the piston drives the active valve core by moving with the help of the trigger rod.

16. The control valve according to claim 1, wherein The trigger mechanism further includes an electromagnetic driver, which drives the trigger rod to move.

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