Gas valve module and valve island thereof

Abstract

The application discloses a gas valve module and a valve island thereof. The gas valve module comprises a valve unit and first and second valve core elements. The first valve core element is movably arranged in a first valve cavity of the valve unit, and the second valve core element is movably arranged in a second valve cavity of the valve unit. The first valve cavity and the second valve cavity are reversely arranged. The first valve core element and the second valve core element are displaced to switch the gas valve module between a first state and a second state, so that the first to fourth interfaces of the valve unit form different conduction states to enable the gas valve module to switch between different working states, that is, one of the two working interfaces of the gas valve module can be connected with one of the two gas paths on the valve island, and the other working interface can be connected with the other gas path, and the switching can be realized in a cycle.

Description

Technical Field

[0001] This invention belongs to the field of air valves, specifically relating to an air valve module and its valve island. Background Technology

[0002] A valve island is a pneumatic-electric integrated control component composed of multiple electrically controlled valves. It typically consists of a valve island seat and a valve unit (or valve module) mounted on it. It is used to control each valve according to the design, such as cyclically switching between two different working pressures.

[0003] However, in existing valve islands, the valves that achieve two pressure controls have complex structures, which are not conducive to manufacturing and installation. Summary of the Invention

[0004] The purpose of this invention is to provide a valve module that can cycle between two predetermined pressure ranges, and a valve island containing the valve module.

[0005] As a first aspect of the present invention, a pneumatic valve module is provided, comprising: A valve unit is provided with a first valve chamber, a second valve chamber, an air chamber, a first interface, a second interface, a third interface, a fourth interface, a fifth interface, a sixth interface, a seventh interface, and an eighth interface. The fifth interface is connected to the sixth interface, the eighth interface is connected to the first interface, and the seventh interface is connected to the air chamber. A first valve core element is movably disposed within a first valve cavity, and the first valve core element includes a first core body; The second valve core element is movably disposed within the second valve cavity, and the second valve core element includes a second core.

[0006] The first valve chamber and the second valve chamber have a first cavity segment, a second cavity segment, and a third cavity segment that are connected in sequence, and the first valve chamber and the second valve chamber are arranged in opposite directions within the valve unit. The displacement of the first valve core element and the second valve core element causes the air valve module to switch between a first state and a second state; in the first state, the first interface and the fourth interface are connected, and the second interface and the third interface are connected; in the second state, the first interface and the third interface are connected, and the second interface and the fourth interface are connected.

[0007] According to any of the above-mentioned valve module, the first interface, the first cavity segment of the first valve chamber and the third cavity segment of the second valve chamber are connected via a first connecting cavity, the third cavity segment of the first valve chamber is connected to the first cavity segment of the second valve chamber via a second connecting cavity, and the second connecting cavity and the second interface are connected via a third connecting cavity.

[0008] According to any of the above-mentioned valve module, a first boss is provided in the middle section of the first valve cavity and a second cavity section of the first valve cavity is provided through the first boss. The first cavity section of the first valve cavity is provided at one end of the first boss, the third cavity section of the first valve cavity is provided at the other end of the first boss, and a first valve port and a second valve port of the first valve cavity are respectively formed at both ends of the first boss.

[0009] According to any of the above-mentioned valve module, the second valve cavity is provided with a second boss and a valve core platform, the third cavity section of the second valve cavity is provided through the second boss, the valve core platform is provided with a valve core hole to connect the first cavity section and the second cavity section of the second valve cavity, and the valve core platform and the second boss respectively form the first valve port and the second valve port of the second valve cavity.

[0010] According to any of the above-mentioned valve module, one end of the first valve core element is provided with a first valve block and the other end is provided with a second valve block, and the contact state between the first valve block and the first valve port is reversed with the contact state between the second valve block and the second valve port.

[0011] According to any of the above-mentioned valve module, the second valve core element is provided with a third valve block at one end. When the second valve core element moves within the second valve cavity, the third valve block abuts against and seals with one of the first valve port and the second valve port and separates from and opens with the other.

[0012] According to any of the above-mentioned valve module, a valve core reset member is provided between the second valve block of the first valve core element and the first boss, and a valve core reset member is provided between the third valve block of the second valve core element and the second boss.

[0013] According to any of the above-mentioned air valve module, the valve unit includes a first valve body and a second valve body, the first valve cavity and the second valve cavity are disposed in the first valve body, and the first interface, the second interface, the fifth interface, the sixth interface, the seventh interface and the eighth interface are all disposed on the first valve body; the air cavity is disposed on the end face of the second valve body or between the first valve body and the second valve body, and the third interface and the fourth interface are disposed on the second valve body.

[0014] According to any of the above-mentioned valve module, a diaphragm is sandwiched between the first valve body and the second valve body, the air cavity is recessed at the bottom surface of the second valve body, and a first through hole and a second through hole are provided on the diaphragm.

[0015] According to any of the above-described valve module, a connecting seat is further provided on one side of the first valve body, and the connecting seat is installed on a seat groove on one side of the first valve body; the sixth interface, the seventh interface, and the eighth interface are provided on the top surface of the connecting seat. Preferably, two protruding arms and a seat groove located between them are provided on one side of the first valve body to form a seat groove.

[0016] According to any of the above-mentioned valve module, the valve module further includes a control valve, a mounting platform is provided on one side of the first valve body, a ninth interface, a tenth interface and an eleventh interface are provided on one side of the bottom surface of the control valve, and a signal interface is provided on a protrusion on the other side of the bottom surface of the control valve.

[0017] As a second aspect of the present invention, a valve island is provided, comprising: The valve island seat has at least two valve positions along its length, and a communication port is provided on one side of each valve position; As in any of the above-mentioned air valve modules, the valve unit of the air valve module is installed at the valve position, and the signal interface of the valve unit is installed at the communication port position.

[0018] The valve island seat includes a first air passage and a second air passage that are independent of each other. The first interface and the second interface of the air valve module are respectively connected to the first air passage and the second air passage. The valve island seat also includes a first air passage port and a second air passage port that are respectively connected to the first air passage and the second air passage.

[0019] The beneficial effects of this invention are as follows: 1. This valve module has two sets of valve mechanisms with opposite operating states, which allows a single control valve to switch the operating states of the two valve mechanisms simultaneously, simplifying the structure.

[0020] 2. In some embodiments, a valve unit is assembled using a separate first valve body and a second valve body. This facilitates the manufacturing of each component, reduces production costs, and allows for more complex designs of the first and second valve bodies to achieve their functions during the pneumatic circuit configuration. Preferably, based on separate manufacturing and assembly, a diaphragm is provided between the first and second valve bodies. This solves the sealing problem and also ensures strict isolation between the control pneumatic circuit and the working pneumatic circuit, preventing leakage or contamination.

[0021] 3. This valve module can be independently installed onto the valve island seat as needed to form a valve island device, achieving the purpose of on-demand assembly and individual maintenance. Attached Figure Description

[0022] Figure 1 This is an exploded view of the structure of a valve module according to a certain embodiment of the present invention, wherein the valve unit and the control valve are shown separately. Figure 2 yes Figure 1 A bottom view of the central valve unit, showing its bottom structure; Figure 3 yes Figure 2 An exploded view of the three-dimensional structure of the valve unit; Figure 4 Is Figure 3 A further structural decomposition diagram based on this; Figure 5 yes Figure 3 A schematic diagram of the cross-section along section AA, which is a cross-sectional view along the central axis; Figure 6 yes Figure 3 A schematic diagram of the cross-sectional structure along section BB, where the section is relative to... Figure 5 Further outward; Figure 7 yes Figure 3 The schematic diagram of the cross-sectional structure of the connecting seat is also a cross-sectional view along the central axis; Figure 8 yes Figure 2 A front view cross-sectional structural diagram of the valve unit, which corresponds to the position diagram of each component of the air valve module in the first state; Figure 9 yes Figure 2 A frontal cross-sectional view of the valve unit in the second state; Figure 10 yes Figure 1 A bottom view of the control valve shows its bottom structure. Figure 11 This is a schematic diagram of the valve island structure according to another embodiment of the present invention, wherein a portion of the valve positions are equipped with Figure 1 The air valve module of the embodiment; Figure 12 yes Figure 11 Enlarged schematic diagram of the CC section and local structure.

[0023] in, The system includes: a valve module 100, a valve unit 10, a first valve body 11, a connecting seat 12, a second valve body 21, a diaphragm 22, a control valve 30, a control body 31, a boss 32, and a mounting platform 33. First interface 101, second interface 102, third interface 103, fourth interface 104, pin 109. First valve chamber 111, second valve chamber 112, first boss 113, second boss 114, valve core platform 115, valve core hole 116, seat groove 117, protruding arm 118, seat groove 119. Connector body 120, sixth interface 121, seventh interface 122, eighth interface 123, fifth interface 124, protrusion 127, annular groove 128, sealing ring 129. First seat cavity 1251, second seat cavity 1252, third seat cavity 1253, first seat opening 1254, second seat opening 1255. First connecting cavity 131, first cavity opening 132, fifth connecting cavity 133, third cavity opening 134, eighth connecting cavity 135, fourth cavity opening 136, fourth connecting cavity 137, second cavity opening 138, sixth connecting cavity 139, seventh connecting cavity 140, first cavity segment 141, second cavity segment 142, third cavity segment 143, first valve opening 144, second valve opening 145. First cavity 151, second cavity 152, second connecting cavity 153, third connecting cavity 154, fifth cavity opening 155, sixth cavity opening 156, cavity pillar 157, positioning pillar 158, sealing element 159. Core stop 16, first stop 161, second stop 162, side hole 163. First cavity 201, second cavity 202, ninth connecting cavity 203, tenth connecting cavity 204, interface component 205, first through hole 221, second through hole 222, third through hole 223, ninth interface 301, tenth interface 302, eleventh interface 303, signal interface 304. Air chamber 150, valve core reset component 200, first valve core element 41, second valve core element 42. First core 411, first valve block 412, second valve block 413, first abutment 414, second core 421, third valve block 422, second abutment 423. Valve island seat 50, valve position 501, communication port position 502, first air passage 511, second air passage 512, first air passage port 513, second air passage port 514, through hole 515, third air passage 516, third air port 517, fourth air port 518. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection of the present invention, the present invention will be described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present invention, and are merely a part of the embodiments of the present invention. The specific and direct descriptions of related structures are only for the convenience of understanding the present invention, and the specific features do not necessarily or directly limit the scope of the present invention. Conventional choices and substitutions made by those skilled in the art under the guidance of the present invention should be considered within the scope of protection of the present invention.

[0025] Example 1 like Figure 1-10As shown, a valve module 100 is used to be installed on a valve island seat to assemble a valve island; wherein, the number of valve modules 100 installed on the valve island seat can be set as needed.

[0026] In this embodiment, the air valve module 100 is composed of a valve unit 10 and a control valve 30 installed on the valve unit 10. The valve unit 10 is the main structure that enables the air valve module 100 to switch between its two working states, while the control valve 30 can be a small control valve such as a pneumatic valve or a solenoid valve, used to control the switching of the working state of the valve unit 10.

[0027] refer to Figure 8-9 As shown, the gas valve module 100 includes at least two operating states. In the first state, the first interface 101 and the fourth interface 104 are connected, allowing the fourth interface 104 to obtain gas from the first interface 101 or discharge its own gas through the first interface 101, thus enabling gas exchange between the first interface 101 and the fourth interface 104. At this time, the second interface 102 is connected to the third interface 103, enabling gas exchange between them as well. In the second state, the first interface 101 and the third interface 103 are connected, enabling gas exchange between them. At this time, the second interface 102 is connected to the fourth interface 104, enabling gas exchange between these two interfaces.

[0028] Therefore, the third interface 103 and the fourth interface 104 of the valve module 100 can be used as two working interfaces of the valve module 100, for example, the third interface 103 can be used as the first working interface and the fourth interface 104 can be used as the second working interface. They can be connected to the first interface 101 and the second interface 102 respectively, and the working state of the valve module 100 can be switched by switching the connection state. The first interface 101 and the second interface 102 can be connected to different air sources, or one can be connected to an air source while the other is connected to the atmosphere.

[0029] For example, in some embodiments, the first interface 101 is connected to a positive pressure pipeline, and the second interface 102 is connected to a vent pipeline (i.e., connected to the atmosphere). The valve module 100 can switch its operating state, allowing the first working interface (i.e., the third interface 103) or the second working interface (i.e., the fourth interface 104) to cycle between being connected to a positive pressure air source and being vented, thereby controlling the two pneumatic devices connected to the first and second working interfaces. In other embodiments, the first interface 101 is connected to a positive pressure pipeline, and the second interface 102 is connected to a negative pressure pipeline, using negative pressure to shorten the switching time; or, the first interface 101 is connected to a first positive pressure pipeline, and the second interface 102 is connected to a second positive pressure pipeline (whose pressure is greater or less than that of the first positive pressure pipeline). In short, the switching function can be achieved simply by connecting the first interface 101 and the second interface 102 to air source pipelines with different pressures.

[0030] refer to Figure 5-6 As shown, in this embodiment, the valve unit 10 is provided with a first valve chamber 111, a second valve chamber 112, an air chamber 150, a first interface 101, a second interface 102, a third interface 103, a fourth interface 104, a fifth interface 124, a sixth interface 121, a seventh interface 122, and an eighth interface 123. The first interface 101 and the third interface 103 are connected to the first valve chamber 111, the second interface 102 and the fourth interface 104 are connected to the second valve chamber 112, the fifth interface 124 is connected to the sixth interface 121, the eighth interface 123 is connected to the first interface 101, and the seventh interface 122 is connected to the air chamber 150. Here, "connected" and "connected setting" mean that the two are always in a connected state, while "conductive" and "conductive setting" mean that the two are currently in a connected state, but may be in a non-connected state under other circumstances.

[0031] The first valve chamber 111 and the second valve chamber 112 each have a first cavity segment 141, a second cavity segment 142, and a third cavity segment 143 that are sequentially connected (each cavity segment is a section of the valve chamber). Furthermore, the first valve chamber 111 and the second valve chamber 112 are arranged in opposite directions within the valve unit 10 (or, in other words, the arrangement order of the cavity segments of the two valve chambers is reversed). (See reference...) Figure 5 As shown, the first valve chamber 111 is provided with a third chamber section 143, a second chamber section 142 and a first chamber section 141 from top to bottom, while the second valve chamber 112 is provided with a first chamber section 141, a second chamber section 142 and a third chamber section 143 from top to bottom.

[0032] In this embodiment, the first valve core element 41 is movably disposed within the first valve cavity 111. The first valve core element 41 includes a first core 411, a first valve block 412 is provided at the lower end of the first core 411, and a second valve block 413 is provided at the upper end. A first abutment 414 is provided on the second valve block 413. The second valve core element 42 is movably disposed within the second valve cavity 112. The second valve core element 42 includes a second core 421, a third valve block 422 is provided at the lower end of the second core 421, and a second abutment 423 is provided on the third valve block 422. Figure 8-9 As shown. Therefore, the operating state of the air valve module 100 is switched by the displacement movement of the first valve core element 41 and the second valve core element 42, that is, it has at least a first state and a second state, and can cycle between the two. like Figure 3 As shown, valve unit 10 includes a first valve body 11 and a second valve body 21, which are separate components. The first valve chamber 111 and the second valve chamber 112 are located inside the first valve body 11. The first interface 101, the second interface 102, the fifth interface 124, the sixth interface 121, the seventh interface 122, and the eighth interface 123 are all located on the first valve body 11. The air chamber 150 is located on the end face of the second valve body 21 or between the valve unit 10 and the second valve body 21. The third interface 103 and the fourth interface 104 are located on the second valve body 21.

[0033] In this embodiment, the air chamber 150 is recessed at the bottom surface of the second valve body 21. A diaphragm 22 is sandwiched between the valve unit 10 and the second valve body 21. The diaphragm 22 has a first through hole 221 and a second through hole 222 respectively connecting the third interface 103 and the fourth interface 104, and a third through hole 223 for the cavity pillar 157 to pass through. The diaphragm 22, placed between the first valve body 11 and the second valve body 21, can isolate the air chamber 150 from the two valve chambers 111 and 112, improving sealing and preventing leakage or gas contamination between the air chamber 150 and the valve chambers.

[0034] refer to Figure 8 As shown, a first recess 201 and a second recess 202 communicating with it are provided on the bottom surface of the second valve body 21. The air chamber 150 is formed by the first recess 201 after the second valve body 21 and the first valve body 11 are assembled. The second recess 202 is used to install the chamber column 157 in it so that the eighth connecting chamber 135 communicates with the air chamber 150.

[0035] In this embodiment, the projected area of ​​the upper end face of the first valve core element 41 and the upper end face of the second valve core element 42 on the diaphragm 22 is larger than that of their lower end face. This makes it possible for the upper end face to have a larger area and thus obtain greater pressure when the upper and lower air pressures are equal, thereby pushing the two valve core elements to move downward. In other words, the two valve core elements form a net driving force due to the difference in the effective pressure area.

[0036] Furthermore, the second valve body 21 is also provided with a ninth connecting chamber 203 and a tenth connecting chamber 204. One end of the ninth connecting chamber 203 is connected to the sixth connecting chamber 139, and the other end forms a third interface 103. One end of the tenth connecting chamber 204 is connected to the seventh connecting chamber 140, and the other end forms a fourth interface 104. Preferably, an interface component 205 is installed at the outer port of the ninth connecting chamber 203 and the tenth connecting chamber 204, and a sealing component 159 is provided on the side wall of the interface component 205, thereby forming the third interface 103 and the fourth interface 104.

[0037] In this embodiment, the displacement of the first valve core element 41 and the second valve core element 42 within their respective valve chambers is controlled by the control valve 30. The control valve 30 is configured to drive the displacement of the first valve core element 41 and the second valve core element 42 in the following manner. The control valve 30 is used to control the connection state of the sixth port 121, the seventh port 122, and the eighth port 123. It can be one or more individual valve components, such as a pneumatic valve or a solenoid valve, or it can be a two-position three-way valve.

[0038] Taking the example of the first interface 101 being connected to a positive pressure pipeline and the second interface 102 being connected to the atmosphere, the working principle is explained as follows: In the first state, control valve 30 connects the seventh port 122 and the sixth port 121, causing the pressure value of the air chamber 150 to approach the same as that of the second port 102. The pressure of the first port 101 is greater than that of the second port 102, causing the first valve core element 41 and the second valve core element 42 to be at the upper dead point of their displacement stroke (because the lower pressure of the two valve core elements is equal to that of the first port 101 and the upper pressure is equal to that of the second port 102). This causes the first valve block 412 of the first valve core element 41 to abut and seal with the first valve port 144 of the first valve chamber 111, and the third valve block 422 of the second valve core element 42 to abut and seal with the first valve port 144 of the second valve chamber 112. Finally, the first port 101 is connected to the fourth port 104, and the second port 102 is connected to the third port 103. At this time, the fourth port 104 provides positive pressure, and the third port 103 is connected to the atmosphere.

[0039] When it is necessary to switch from the first state to the second state, the connection state of the control valve 30 is first switched to connect the sixth port 121 and the eighth port 123, thereby causing the pressure in the air chamber 150 to gradually approach the same level as the first port 101, that is, the pressure value in the air chamber 150 increases; Reference Figure 8 As shown, this makes the upper and lower pressure values ​​of the first valve core element 41 and the second valve core element 42 equal. However, because the effective areas of the upper and lower end faces of the valve core elements are different, the first valve core element 41 and the second valve core element 42 can be pushed downwards simultaneously, ultimately forming the following... Figure 9 The second state shown is a stable state. In the second state, both the first valve core element 41 and the second valve core element 42 are at the lower dead point of their displacement stroke. The second valve block 413 of the first valve core element 41 is in contact and sealed with the second valve port 145 of the first valve chamber 111, and the third valve block 422 of the second valve core element 42 is in contact and sealed with the second valve port 145 of the second valve chamber 112. Finally, the first interface 101 and the third interface 103 are connected, and the second interface 102 and the fourth interface 104 are connected. At this time, the third interface 103 provides positive pressure, and the fourth interface 104 is connected to the atmosphere.

[0040] To switch back from the second state to the first state, the connection state of the control valve 30 is changed to connect the sixth port 121 and the seventh port 122. This allows the gas in the gas chamber 150 to be discharged, reducing the pressure in the gas chamber 150 from the first pressure (i.e., the same as the first port 101) to the second pressure (i.e., the same as the second port 102). This reduces or removes the downward thrust exerted by the gas in the gas chamber 150 on the first valve core element 41 and the second valve core element 42, thereby causing the first valve core element 41 and the second valve core element 42 to move upward to the top dead center, eventually stabilizing at a position similar to... Figure 8 The first state is shown. Repeating this cycle will switch between working states.

[0041] refer to Figure 5 As shown, the first interface 101, the first cavity segment 141 of the first valve cavity 111, and the third cavity segment 143 of the second valve cavity 112 are connected via a first connecting cavity 131. The third cavity segment 143 of the first valve cavity 111 is connected to the first cavity segment 141 of the second valve cavity 112 via a second connecting cavity 153, and the second connecting cavity 153 is connected to the second interface 102 via a third connecting cavity 154. Specifically, the second interface 102 is connected to the first cavity segment 141 of the second valve cavity 112, the third interface 103 is connected to the second cavity segment 142 of the first valve cavity 111, and the fourth interface 104 is connected to the second cavity segment 142 of the second valve cavity 112.

[0042] Preferably, the first connecting cavity 131 is horizontally disposed within the first valve body 11 and forms a first cavity opening 132 at its right end. A fourth connecting cavity 137 and a fifth connecting cavity 133 are horizontally disposed on the left and right sides of the first valve body 11, respectively. A second cavity opening 138 and a third cavity opening 134 are located at the outer ends of the fourth connecting cavity 137 and the fifth connecting cavity 133, respectively. The fourth connecting cavity 137 is connected to the second cavity section 142 of the first valve cavity 111 and to the third interface 103 via the sixth connecting cavity 139. The fifth connecting cavity 133 is connected to the second cavity section 142 of the second valve cavity 112 and to the fourth interface 104 via the seventh connecting cavity 140. An eighth connecting cavity 135 is also disposed within the first valve body 11. The eighth connecting cavity 135 has a fourth cavity opening 136 at the right end of the first valve body 11 and forms a cavity pillar 157 on the top surface of the first valve body 11. Furthermore, a plug (not shown in the figure) is disposed at the second cavity opening 138 to seal the second cavity opening 138. By using several horizontal and vertical connecting cavities, the connecting cavity structure for connecting various interfaces can be formed inside the first valve body 11 during the molding process, which is beneficial for manufacturing the first valve body 11.

[0043] like Figure 5-6 As shown, a first boss 113 is provided in the middle section of the first valve cavity 111, and a second cavity section 142 of the first valve cavity 111 is provided through the first boss 113. The first cavity section 141 of the first valve cavity 111 is provided at one end of the first boss 113, and the third cavity section 143 of the first valve cavity 111 is provided at the other end of the first boss 113. A first valve port 144 and a second valve port 145 of the first valve cavity 111 are respectively provided at both ends of the first boss 113.

[0044] Furthermore, a second boss 114 is provided near its lower end within the second valve cavity 112, and a valve core platform 115 is installed near its upper end. A third cavity section 143 of the second valve cavity 112 passes through the second boss 114 and communicates with the first connecting cavity 131. A valve core hole 116 is provided on the valve core platform 115 to connect the first cavity section 141 and the second cavity section 142 of the second valve cavity 112. The valve core platform 115 and the second boss 114 are respectively provided with a first valve port 144 and a second valve port 145 of the second valve cavity 112. (Reference) Figure 5-6 As shown.

[0045] In this embodiment, a first valve block 412 is provided at one end of the first valve core element 41 and a second valve block 413 is provided at the other end. The contact state between the first valve block 412 and the first valve port 144 is reversed with the contact state between the second valve block 413 and the second valve port 145. This allows airflow to pass through the valve port when the first valve core element 41 moves up and down and stabilizes in the first valve cavity 111. Only one of the first valve block 412 and the second valve block 413 is in contact and sealed, while the other is in an open state separated from the corresponding valve port.

[0046] In addition, the second valve core element 42 is provided with a third valve block 422 at one end. The third valve block 422 is sealed to one of the first valve port 144 and the second valve port 145 and is separated from the other. When the second valve core element 42 moves within the second valve cavity 112, the third valve block 422 is sealed to one of the first valve port 144 and the second valve port 145 and is separated from the other to open.

[0047] Preferably, the first valve body 11 further includes a connecting seat 12 mounted on one side thereof, see reference. Figure 4 As shown, a seat groove 117 is provided on one side of the first valve body 11. The seat groove 117 preferably includes two protruding arms 118 and a seat groove 119 between them. The connecting seat 12 is clamped and installed in the seat groove 119. The connecting seat 12 includes a connecting seat body 120. The sixth interface 121, the seventh interface 122 and the eighth interface 123 are provided on the top surface of the connecting seat body 120. A first seat opening 1254 and a second seat opening 1255 are provided on the left side of the connecting seat body 120. The first seat cavity 1251, the second seat cavity 1252 and the third seat cavity 1253 are provided inside the connecting seat body 120. The first seat cavity 1251 communicates between the fifth interface 124 and the sixth interface 121, the second seat cavity 1252 communicates between the seventh interface 122 and the first seat opening 1254, and the third seat cavity 1253 communicates between the eighth interface 123 and the second seat opening 1255. To achieve the above structure and the connection between the connecting seat body 120 and the first valve body 11, three protrusions 127 are provided on the left side of the connecting seat body 120. The first seat opening 1254 and the second seat opening 1255 are respectively inserted into the first and second protrusions 127. These two protrusions 127 are used for airtight insertion into the third cavity opening 134 and the fourth cavity opening 136 of the first valve body 11, respectively. The third protrusion 127 is used for insertion into the first cavity opening 132, so that the connecting seat body 120 can seal the first cavity opening 132 of the first connecting cavity 131 (or, as can be referred to, the plug provided at the second cavity opening 138). To achieve better airtightness, sealing rings 129 can be provided in the annular grooves 128 of each protrusion 127, such as... Figure 4 , 7 As shown.

[0048] Therefore, configuring the connector 12 as a detachable installation on one side of the first valve body 11, and manufacturing both separately before assembling them together, simplifies the manufacturing process while achieving the desired structure, and ensures a tight fit of the air passages after assembly. In other embodiments, the connector 12 can also be integrally formed on the first valve body 11. In this case, from the perspective of internal structure manufacturing, the first valve body 11 can be formed in two or more pieces along its central cross-section and then welded together.

[0049] In this embodiment, the valve unit 10 is specifically constructed according to the following structural basis.

[0050] First, as described above, the valve unit 10 is divided into a first valve body 11, a diaphragm member 22, and a second valve body 21 in the vertical direction, and the first valve chamber 111 and the second valve chamber 112 are also configured to be arranged in the vertical direction (i.e., the vertical direction). In other embodiments, the first valve chamber 111 and the second valve chamber 112 may also be arranged in the horizontal direction within the valve unit 10.

[0051] Secondly, the first valve body 11 is an integrally formed part, with a first cavity 151 and a second cavity 152 arranged in parallel inside, and a second connecting cavity 153 connecting the top ends of the two cavities. A third connecting cavity 154 is provided on the side of the second cavity 152, and preferably two third connecting cavities 154 are provided. A sixth connecting cavity 139 forms a fifth cavity opening 155 on the top surface of the first valve body 11, and a seventh connecting cavity 140 forms a sixth cavity opening 156 on the top surface of the first valve body 11. A cavity pillar 157 and a positioning post 158 ​​protrude from the top surface of the first valve body 11. The cavity pillar 157 is connected to the second valve body 21, and the eighth connecting cavity 135 is connected to the air cavity 150. The positioning post 158 ​​is used to align and insert with the positioning hole provided on the bottom surface of the second valve body 21. The first valve core element 41 and the second valve core element 42 are respectively installed in the first cavity 151 and the second cavity 152. Then, the core stop 16 is installed on the first valve body 11. The core stop 16 includes a first stop 161 and a second stop 162. The first stop 161 is used to limit the first valve core element 41 when assembled in the first cavity 151, and the second stop 162 is used to limit the second valve core element 42 when assembled in the second cavity 152. The valve core platform 115 is integrally formed below the second stop 162, and the valve core platform 115 is in sealing contact with the inner wall of the second cavity 152. The valve core platform 115 has a valve core hole 116 that extends through the valve core platform 115 in a vertical direction, such that a second cavity section 142 is located below the valve core hole 116, and a first cavity section 141 is located above the valve core hole 116. (Reference) Figure 5 As shown, a side hole 163 is provided on the second stop 162, and the side hole 163 connects the first cavity section 141 of the second valve cavity 112 and the third connecting cavity 154.

[0052] refer to Figure 3 , 4 As shown, a valve core reset member 200 is provided between the second valve block 413 of the first valve core element 41 and the first boss 113, and a valve core reset member 200 is provided between the third valve block 422 of the second valve core element 42 and the second boss 114. The valve core reset member 200 is preferably a spring, which provides a predetermined initial reset force to enable the valve module to switch between two operating states more quickly and stably.

[0053] refer to Figure 1 , 10 As shown, the control valve 30 is provided with a ninth interface 301, a tenth interface 302, an eleventh interface 303, and a signal interface 304. A mounting platform 33 is provided on one side of the first valve body 11. The control valve 30 includes a control body 31 and a boss 32. The ninth interface 301, tenth interface 302, and eleventh interface 303 are provided on one side of the bottom surface of the control body 31, and the boss 32 is provided on the other side. The signal interface 304 is located on the boss 32, and the boss 32 does not interfere with the mounting platform 33. After the control valve 30 is assembled onto the mounting platform 33, the ninth interface 301 connects to the sixth interface 121, the tenth interface 302 connects to the seventh interface 122, and the eleventh interface 303 connects to the eighth interface 123.

[0054] Preferably, after the connecting seat 12 is installed, the protruding arm 118 is convex relative to the top surface of the connecting seat 12, so that the two protruding arms 118 can also be used to limit the control valve 30 on both sides during installation, so as to make the control valve 30 installed stably. Preferably, after the control valve 30 is installed, it is also fastened to the connecting seat 12 by the pin 109 to improve the connection strength.

[0055] Furthermore, in this embodiment, reference Figure 2 As shown, on the bottom surface of the first valve body 11, a sealing element 159 is provided around the first interface 101, the second interface 102, and the fifth interface 124. The sealing element 159 can be a plurality of independent sealing rings or an integral sealing element. Similarly, a sealing element 159 is also provided on the top surface of the first valve body 11.

[0056] Example 2 like Figure 11-12 As shown, this embodiment provides a valve island, which includes: The valve island seat 50 has at least two valve positions 501 along its length, and a communication port position 502 is provided on one side of each valve position 501. For example, refer to Figure 11 As shown, the valve island seat 50 has six groups of twelve valve positions 501 in total, and a pneumatic valve module 100 is installed on two of the valve positions 501.

[0057] The air valve module 100 provided in Embodiment 1 has a valve unit 10 installed at the valve position 501 and its signal interface 304 installed at the communication port position 502, thereby realizing the air and electrical connection between the valve unit 10 and the valve island seat 50.

[0058] The valve island seat 50 has two independent air passages arranged along its length, namely a first air passage 511 and a second air passage 512. After the valve module 100 is installed, the first interface 101 and the second interface 102 are respectively connected to the first air passage 511 and the second air passage 512, for example, referring to... Figure 12 As shown, the first air passage 511 and the second air passage 512 are provided with through holes 515 at each valve position 501, so that the first interface 101 and the second interface 102 of the air valve module 100 installed at the valve position 501 can be connected to the first air passage 511 and the second air passage 512 respectively. The first air passage 511 and the second air passage 512 are used to connect to air sources of different pressures, such as one connecting to a positive pressure pipeline and the other connecting to the atmosphere.

[0059] In addition, the valve island seat 50 is also provided with a first air inlet 513 and a second air inlet 514. The first air inlet 513 is connected to the first air passage 511 to serve as a connection port for supplying air from the outside to the first air passage 511 of the valve island seat 50. Similarly, the second air inlet 514 is connected to the second air passage 512 to serve as a supply port. (Refer to...) Figure 11 As shown. Therefore, for the valve island in this embodiment, it can be connected to an external air source or connected in parallel to the corresponding air supply port of another valve island via the first air port 513 and the second air port 514.

[0060] refer to Figure 12 As shown, a third air passage 516 is also provided on the valve island seat 50. The third air passage 516 is provided with a third air port 517 for connection to the fifth interface 124 and a fourth air port 518 for connection to the second interface 102. The second interface 102 is simultaneously connected to the through hole 515 and the third air port 517.

Claims

1. A pneumatic valve module, characterized in that, include: A valve unit (10) is provided with a first valve chamber (111), a second valve chamber (112), an air chamber (150), a first interface (101), a second interface (102), a third interface (103), a fourth interface (104), a fifth interface (124), a sixth interface (121), a seventh interface (122), and an eighth interface (123). The fifth interface (124) is connected to the sixth interface (121), the eighth interface (123) is connected to the first interface (101), and the seventh interface (122) is connected to the air chamber (150). The first valve core element (41) is movably disposed within the first valve cavity (111), and the first valve core element (41) includes a first core (411). The second valve core element (42) is movably disposed within the second valve cavity (112), and the second valve core element (42) includes a first core (421). The first valve chamber (111) and the second valve chamber (112) have a first cavity segment (141), a second cavity segment (142) and a third cavity segment (143) connected in sequence, and the first valve chamber (111) and the second valve chamber (112) are arranged in opposite directions in the valve unit (10); The displacement of the first valve core element (41) and the second valve core element (42) causes the air valve module to switch between a first state and a second state; in the first state, the first interface (101) and the fourth interface (104) are connected and the second interface (102) and the third interface (103) are connected; in the second state, the first interface (101) and the third interface (103) are connected and the second interface (102) and the fourth interface (104) are connected.

2. The air valve module according to claim 1, characterized in that, The first interface (101), the first cavity segment (141) of the first valve cavity (111) and the third cavity segment (143) of the second valve cavity (112) are connected via a first connecting cavity (131). The third cavity segment (143) of the first valve cavity (111) is connected to the first cavity segment (141) of the second valve cavity (112) via a second connecting cavity (153). The second connecting cavity (153) and the second interface (102) are connected via a third connecting cavity (154).

3. The air valve module according to claim 2, characterized in that, The first valve cavity (111) has a first boss (113) in the middle section and the second cavity section (142) of the first valve cavity (111) passes through the first boss (113). The first cavity section (141) of the first valve cavity (111) is located at one end of the first boss (113) and the third cavity section (143) of the first valve cavity (111) is located at the other end of the first boss (113). The first valve port (144) and the second valve port (145) of the first valve cavity (111) are formed at both ends of the first boss (113). And / or, The second valve chamber (112) is provided with a second boss (114) and a valve core platform (115). The third cavity section (143) of the second valve chamber (112) is provided through the second boss (114). The valve core platform (115) is provided with a valve core hole (116) to connect the first cavity section (141) and the second cavity section (142) of the second valve chamber (112). The valve core platform (115) and the second boss (114) are respectively provided with the first valve port (144) and the second valve port (145) of the second valve chamber (112).

4. The air valve module according to claim 3, characterized in that, The first valve core element (41) has a first valve block (412) at one end and a second valve block (413) at the other end, and the contact state between the first valve block (412) and the first valve port (144) is reversed compared to the contact state between the second valve block (413) and the second valve port (145); and / or, The second valve core element (42) has a third valve block (422) at one end. When the second valve core element (42) moves within the second valve chamber (112), the third valve block (422) abuts against and seals with one of the first valve port (144) and the second valve port (145) and separates from the other.

5. The air valve module according to claim 4, characterized in that, A valve core reset member (200) is provided between the second valve block (413) of the first valve core element (41) and the first boss (113), and a valve core reset member (200) is provided between the third valve block (422) of the second valve core element (42) and the second boss (114).

6. The air valve module according to any one of claims 1-5, characterized in that, The valve unit (10) includes a first valve body (11) and a second valve body (21). The first valve chamber (111) and the second valve chamber (112) are located inside the first valve body (11). The first interface (101), the second interface (102), the fifth interface (124), the sixth interface (121), the seventh interface (122), and the eighth interface (123) are all located on the first valve body (11). The air chamber (150) is located on the end face of the second valve body (21) or between the first valve body (11) and the second valve body (21). The third interface (103) and the fourth interface (104) are located on the second valve body (21).

7. The air valve module according to claim 6, characterized in that, A diaphragm (22) is sandwiched between the first valve body (11) and the second valve body (21). The air cavity (150) is recessed at the bottom surface of the second valve body (21), and a first perforation (221) and a second perforation (222) are provided on the diaphragm (22).

8. The air valve module according to claim 7, characterized in that, A connecting seat (12) is provided on one side of the first valve body (11), and the connecting seat (12) is installed on the seat groove (117) on one side of the first valve body (11); the sixth interface (121), the seventh interface (122) and the eighth interface (123) are provided on the top surface of the connecting seat (12).

9. The air valve module according to claim 7, characterized in that, The valve module also includes a control valve (30). A mounting platform (33) is provided on one side of the first valve body (11). A ninth interface (301), a tenth interface (302) and an eleventh interface (303) are provided on one side of the bottom surface of the control valve (30). A signal interface (304) is provided on a boss (32) on the other side of the bottom surface of the control valve (30).

10. A valve island, characterized in that, include: The valve island seat (50) has at least two valve positions (501) along its length, and a communication port position (502) is provided on one side of each valve position (501). The valve module (100) as described in any one of claims 1-9, wherein the valve unit (10) of the valve module (100) is installed at the valve position (501) and the signal interface (304) of the valve unit (10) is installed at the communication port position (502); in, The valve island seat (50) includes a first air passage (511) and a second air passage (512) that are independent of each other. The first interface (101) and the second interface (102) of the air valve module are respectively connected to the first air passage (511) and the second air passage (512). The valve island seat (50) also includes a first air passage port (513) and a second air passage port (514) that are respectively connected to the first air passage (511) and the second air passage (512).

Images