Electromagnetic valve assembly with multiple control modes

Abstract

The utility model discloses a kind of electromagnetic valve assemblies with multiple control modes, including valve cavity assembly, valve cavity assembly includes valve cavity main body, first valve seat mechanism and second valve seat mechanism are respectively communicated and arranged on valve cavity main body, and valve core mechanism is movably arranged in valve cavity main body;First valve seat mechanism includes first valve seat main body, it is fixedly communicated and arranged on the side of valve cavity main body;First connecting interface mechanism, second connecting interface and first manual pressing mechanism are respectively penetrated and arranged on the same side of first valve seat main body;Two electromagnetic valves are respectively arranged on the valve body assembly, and it can be sealed to valve body assembly respectively Operation.The utility model is set to two different connecting interfaces and manual pressing mechanism, realize the multiple control operation of valve cavity assembly, effectively solve the problem that the structure of existing reversing electromagnetic valve is more complex and safety performance is not enough.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and in particular to a solenoid valve assembly with multiple control modes. Background Technology

[0002] Solenoid valves are electromagnetically controlled industrial devices used in automation to control fluids. They are actuators, typically composed of a coil assembly and a magnetic core. A solenoid valve is a valve body containing one or more orifices. When the coil is energized or de-energized, the rotation of the magnetic core causes fluid to flow through the valve body or be cut off, thus changing the direction of fluid flow. Currently, the doors of public transportation vehicles are controlled by solenoid valves. The valve switches between different working ports to open and close the doors. However, if the electromagnetic control component fails when switching working ports, the switching will fail, potentially causing the doors to fail to open or close. This is especially problematic when many passengers are disembarking; if the doors cannot open promptly, it can cause panic among passengers and increase the risk of accidents.

[0003] Application CN201910364950.5 discloses a safety-type reversing solenoid valve, including a valve body, a first valve seat mechanism at one end of the valve body, and a second valve seat mechanism at the other end of the valve body. The valve body contains a valve cavity and has a first exhaust port, a first working port, an air inlet, a second working port, and a second exhaust port. A valve stem is located within the valve cavity. The first valve seat mechanism has a first piston chamber containing a first piston, and the second valve seat mechanism has a second piston chamber containing a second piston. The first valve seat mechanism is connected to a first electromagnetic control mechanism, and the second valve seat mechanism is connected to a second electromagnetic control mechanism. A pneumatic control assembly is also connected to the first valve seat mechanism. The pneumatic control assembly includes a base with a pneumatic control cavity inside. The base has a pneumatic control inlet communicating with the pneumatic control cavity, and a push rod is movably mounted within the pneumatic control cavity, with one end of the push rod passing through the pneumatic control cavity. While this technical solution can achieve safe control of the reversing solenoid valve, its structure is relatively complex and it offers limited safety control methods. Therefore, a solenoid valve assembly with multiple control methods is provided to address the aforementioned problems. Utility Model Content

[0004] One of the objectives of this invention is to provide a solenoid valve assembly with multiple control modes, so as to solve the problems of the complex structure and insufficient safety performance of existing directional solenoid valves.

[0005] The solenoid valve assembly with multiple control modes of this utility model can be achieved through the following technical solutions:

[0006] This utility model discloses a solenoid valve assembly with multiple control modes, applied to the door of a public transportation vehicle, including a valve chamber assembly; two solenoid valves, which are respectively disposed on the valve body assembly and are each capable of sealing the valve body assembly;

[0007] The valve cavity assembly includes a valve cavity body, which is a hollow cavity. A first exhaust port, an intake port, and a second exhaust port are sequentially disposed through one end of the valve cavity body. A first working port and a second working port are respectively disposed through the valve cavity body at the end opposite to the intake port. A first valve seat mechanism and a second valve seat mechanism are respectively connected to the valve cavity body at opposite ends. A valve core mechanism is movably disposed in the valve cavity body and its two ends are respectively movably disposed in the first valve seat mechanism and the second valve seat mechanism.

[0008] The first valve seat mechanism includes a first valve seat body, which is a hollow cavity. The first valve seat body is fixedly connected to one side of the valve cavity body. The corresponding solenoid valve is fixedly installed on the first valve seat body and can perform a sealing operation on the first valve seat body. A first connecting interface mechanism, a second connecting interface, and a first manual pressing mechanism are respectively installed through the first valve seat body on the same side. The first manual pressing mechanism is movably and sealingly installed on the first valve seat body.

[0009] In one embodiment, the first valve seat body is provided with a first connecting cavity, and the corresponding solenoid valve is detachably and fixedly connected to the first connecting cavity; a first pilot air passage is provided through the first valve seat body, which is connected to the first connecting cavity; a first air inlet passage is also provided in the first valve seat body, and its two ends are respectively connected to the first connecting cavity and the inner cavity of the first valve seat body.

[0010] In one embodiment, a first connecting channel, a second connecting channel, and a first pressing hole are respectively provided through the same side of the first valve seat body; the first connecting interface mechanism and the second connecting interface are respectively disposed in the first connecting channel and the second connecting channel; the first manual pressing mechanism is movably sealed in the first pressing hole; the first air intake channel and the first connecting channel are connected; the second connecting channel and the first pressing hole are connected.

[0011] In one embodiment, the first connection interface mechanism includes a first connection interface and a one-way membrane sequentially disposed in the first connection channel; the one-way membrane allows gas in the first connection interface to enter the inner cavity of the first valve seat body in only one direction.

[0012] In one embodiment, the first manual pressing mechanism includes a pressing rod body, which is movably sealed in the first pressing hole; a first sealing member is movably sealed in the inner cavity of the first valve seat body and fixedly connected to the pressing rod body, and gas entering the inner cavity of the first valve seat body through the second connection interface can drive the first sealing member to push the valve core mechanism to move.

[0013] In one embodiment, the second valve seat mechanism includes a second valve seat body, which is a hollow cavity, and the second valve seat body is fixedly connected to the valve cavity body on the other side opposite to the first valve seat mechanism; a second manual pressing mechanism is movably sealed and disposed through the second valve seat body.

[0014] In one embodiment, the second valve seat body is provided with a second connecting cavity, and the corresponding solenoid valve is detachably and fixedly connected to the second connecting cavity; a second pilot air passage is provided through the second valve seat body, which is connected to the second connecting cavity; a second air inlet passage is also provided in the second valve seat body, and its two ends are connected to the second connecting cavity and the inner cavity of the second valve seat body, respectively.

[0015] In one embodiment, the valve core mechanism includes a valve core rod body, which is movably disposed sequentially in the first valve seat body, the valve cavity body, and the second valve seat body; a first piston head and a second piston head are respectively fixedly disposed at both ends of the valve core rod body, which are movably disposed in the first valve seat body and the second valve seat body, respectively; and four sealing rings are sequentially fixedly disposed through the valve core rod body, which are respectively capable of sealingly contacting the inner wall of the valve cavity body.

[0016] In one embodiment, the solenoid valve includes a solenoid valve body, which is a hollow cavity; a stationary iron core mechanism that is adjustablely fixed on the solenoid valve body; a movable iron core mechanism that is movably disposed through the solenoid valve body and disposed below the stationary iron core mechanism; and a sealing plug fixedly connected to the movable iron core mechanism.

[0017] In one embodiment, the stationary iron core mechanism includes a stationary iron core body and a valve cap; the valve cap is fixedly connected to the solenoid valve body; the stationary iron core body is adjustablely threadedly connected to the valve cap and disposed in the solenoid valve body.

[0018] Compared with the prior art, the advantages of this utility model of a solenoid valve assembly with multiple control modes are as follows:

[0019] When the solenoid valve in this multi-control solenoid valve assembly fails, it can be vented to the first valve seat body through two different connection interfaces. The gas entering the first valve seat body drives the valve core mechanism to move, realizing the gas path switching operation. Alternatively, the push rod body can be pressed directly, and the push rod body drives the valve core mechanism to move, realizing the gas path switching operation. This enables multi-path control of the valve cavity assembly, effectively solving the problems of the complex structure and insufficient safety performance of existing reversing solenoid valves. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a solenoid valve assembly with multiple control modes according to the present invention, including a valve chamber assembly and a first solenoid valve;

[0022] Figure 2 yes Figure 1 The diagram shown is a structural schematic of a solenoid valve assembly with multiple control modes according to this utility model from another perspective.

[0023] Figure 3 yes Figure 1 The diagram shows a cross-sectional structure of a solenoid valve assembly with multiple control modes according to this utility model.

[0024] Figure 4 yes Figure 1 The diagram shows the structural schematic of the valve chamber assembly.

[0025] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of the valve cavity assembly shown;

[0026] Figure 6 yes Figure 4 The schematic diagram of the valve cavity assembly shown includes a first valve seat mechanism;

[0027] Figure 7 yes Figure 6 The diagram shows the structure of the first valve seat mechanism.

[0028] Figure 8 yes Figure 6 A schematic diagram of the first valve seat mechanism from another perspective;

[0029] Figure 9 yes Figure 1The diagram shows the exploded structure of the first solenoid valve.

[0030] The diagram indicates the following: 100, solenoid valve assembly; 10, valve chamber assembly; 11, valve chamber body; 111, air inlet; 112, first exhaust port; 113, second exhaust port; 114, first working port; 115, second working port; 12, first valve seat mechanism; 121, first valve seat body; 1211, first connecting cavity; 1212, first pilot air passage; 12121, pilot air port; 1213, first air inlet passage; 1214, first connecting passage; 1215, second connecting passage; 1216, first pressing hole; 1217, fixing hole; 122, first connecting interface mechanism; 1221, first connecting interface; 1222, one-way diaphragm; 123, second connecting interface. 124, First manual pressing mechanism; 1241, Press rod body; 1242, First sealing element; 13, Second valve seat mechanism; 131, Second valve seat body; 1311, Second connecting cavity; 1312, Second pilot air passage; 1313, Second air inlet passage; 1314, Second pressing hole; 132, Second manual pressing mechanism; 14, Valve core mechanism; 141, Valve core rod body; 142, First piston head; 143, Second piston head; 144, Sealing ring; 20, First solenoid valve; 21, Solenoid valve body; 22, Static iron core mechanism; 221, Static iron core body; 222, Valve cap; 2221, Second sealing element; 23, Moving iron core mechanism; 24, Sealing plug; 30, Second solenoid valve. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] Please see Figures 1-3As shown, the solenoid valve assembly 100 with multiple control modes of this utility model is mainly used on the doors of public transportation vehicles. It includes a valve chamber assembly 10, a first solenoid valve 20, and a second solenoid valve 30. The valve chamber assembly 10 is the main body for venting. The first solenoid valve 20 and the second solenoid valve 30 are respectively installed on the valve body assembly 10 and can respectively perform sealing operations on the valve body assembly 10. By energizing the first solenoid valve 20 or the second solenoid valve 30, the automatic switching operation of different air paths on the valve body assembly 10 can be realized.

[0034] Please see Figures 1-6 As shown, in this embodiment, the valve cavity assembly 10 includes a valve cavity body 11, a first valve seat mechanism 12, a second valve seat mechanism 13, and a valve core mechanism 14; the valve cavity body 11 is a hollow cavity; the first valve seat mechanism 12 and the second valve seat mechanism 13 are respectively connected and disposed at opposite ends of the valve cavity body 11; the valve core mechanism 14 is movably disposed in the valve cavity body 11 and its two ends are respectively movably disposed in the first valve seat mechanism 12 and the second valve seat mechanism 13. Specifically, an air inlet 111, a first exhaust port 112, and a second exhaust port 113 are respectively provided through one end of the valve body 11, with the air inlet 111 located between the first exhaust port 112 and the second exhaust port 113; a first working port 114 and a second working port 115 are respectively provided through the other end of the valve body 11 opposite to the air inlet 111; when the first exhaust port 112 and the first working port 114 are connected, the second working port 115 is connected to the second exhaust port 113 for exhaust operation; when the first exhaust port 112 and the second working port 115 are connected, the first working port 114 is connected to the first exhaust port 112 for exhaust operation.

[0035] Please see Figures 3-6 As shown, in this embodiment, the first valve seat mechanism 12 includes a first valve seat body 121, a first connecting interface mechanism 122, a second connecting interface 123, and a first manual pressing mechanism 124. The first valve seat body 121 is a hollow cavity, which is fixedly connected to one side of the valve cavity body 11. The first solenoid valve 20 is fixedly installed on the first valve seat body 121 and can perform a sealing operation on the first valve seat body 121. The first connecting interface mechanism 122, the second connecting interface 123, and the first manual pressing mechanism 124 are respectively installed through the same side of the first valve seat body 121. The first connecting interface mechanism 122 and the second connecting interface 123 are respectively connected to the corresponding air pipes. Air is supplied to the first connecting interface mechanism 122 and the second connecting interface 123 through the corresponding air pipes, thereby driving the valve core mechanism 14 to move and realize the air path switching operation. The first manual pressing mechanism 124 is movably and sealed on the first valve seat body 121. By manually pressing the first manual pressing mechanism 124, the valve core mechanism 14 is driven to move and realize the air path switching operation.

[0036] Please see Figures 3-8 As shown, specifically, a first connecting cavity 1211 is provided on the first valve seat body 121, and the first solenoid valve 20 is detachably and fixedly connected to the first connecting cavity 1211; a first pilot air passage 1212 is provided through the first valve seat body 121, which is connected to the first connecting cavity 1211, and air is supplied to the first connecting cavity 1211 through the first pilot air passage 1212. Specifically, the first pilot air passage 1212 is connected to the first connecting cavity 1211 through the pilot air port 12121; a first air inlet passage 1213 is also provided in the first valve seat body 121, and the two ends of the first air inlet passage 1213 are respectively connected to the first connecting cavity 1211 and the first valve seat body 1211. The inner cavity of the valve seat body 121 is connected, allowing gas in the first connecting cavity 1211 to enter the inner cavity of the first valve seat body 121. A first connecting channel 1214, a second connecting channel 1215, and a first pressing hole 1216 are respectively provided through the same side of the first valve seat body 121. A first connecting interface mechanism 122 and a second connecting interface 123 are respectively disposed in the first connecting channel 1214 and the second connecting channel 1215. A first manual pressing mechanism 124 is movably and sealingly disposed in the first pressing hole 1216. Multiple fixing holes 1217 are also provided through the first valve seat body 121, and fastening screws are used to fix the first valve seat body 121 to the valve cavity body 11 through these fixing holes 1217. Specifically, the first air intake channel 1213 and the first connecting channel 1214 are connected; the second connecting channel 1215 and the first pressing hole 1216 are connected.

[0037] Please see Figure 5 and Figure 6As shown, specifically, the first connection interface mechanism 122 includes a first connection interface 1221 and a one-way membrane 1222. The first connection interface 1221 and the one-way membrane 1222 are sequentially arranged in the first connection channel 1214. The one-way membrane 1222 only allows gas in the first connection interface 1221 to enter the inner cavity of the first valve seat body 121 in one direction, and does not allow gas in the inner cavity of the first valve seat body 121 to enter the first connection interface 1221. Specifically, the first manual pressing mechanism 124 includes a pressing rod body 1241 and a first sealing element 1242. The pressing rod body 1241 is movably and sealingly disposed in the first pressing hole 1216, and the first sealing element 1242 is movably and sealingly disposed in the inner cavity of the first valve seat body 121 and fixedly connected to the pressing rod body 1241. When an external force is applied to the pressing rod body 1241, the pressing rod body 1241 drives the first sealing element 1242 to push the valve core mechanism 14 to move and realize the gas path switching operation. The gas entering the inner cavity of the first valve seat body 121 through the second connection interface 123 can also drive the first sealing element 1242 to push the valve core mechanism 14 to move and realize the gas path switching operation.

[0038] Please see Figures 3-6 As shown, in this embodiment, the second valve seat mechanism 13 includes a second valve seat body 131 and a second manual pressing mechanism 132. The second valve seat body 131 is a hollow cavity, which is fixedly connected to the valve cavity body 11 on the other side opposite to the first valve seat mechanism 12. The second solenoid valve 30 is fixedly installed on the second valve seat body 131 and can perform a sealing operation on the second valve seat body 131. The second manual pressing mechanism 132 is movably and sealingly installed through the second valve seat body 131. By manually pressing the second manual pressing mechanism 132, the valve core mechanism 14 is pushed to move to realize the gas path switching operation. Specifically, a second connecting cavity 1311 is provided on the second valve seat body 131, and the second solenoid valve 30 is detachably and fixedly connected to the second connecting cavity 1311; a second pilot air passage 1312 is provided through the second valve seat body 131, which is connected to the second connecting cavity 1311, and the second pilot air passage 1312 is used to ventilate the second connecting cavity 1311; a second air inlet passage 1313 is provided in the second valve seat body 131, and the two ends of the second air inlet passage 1313 are respectively connected to the second connecting cavity 1311 and the inner cavity of the second valve seat body 131, so that the gas in the second connecting cavity 1311 enters the inner cavity of the second valve seat body 131; a second pressing hole 1314 is also provided through the second valve seat body 131, and the second manual pressing mechanism 132 is movably and sealed in the second pressing hole 1314. Specifically, the structure of the second manual pressing mechanism 132 is similar to that of the first manual pressing mechanism 124, so its specific structure will not be described in detail here.

[0039] Please see Figure 3, Figure 5 and Figure 6 As shown, in this embodiment, the valve core mechanism 14 includes a valve core rod 141, a first piston head 142, a first piston head 143, and four sealing rings 144. The valve core rod 141 is sequentially and movably disposed in the first valve seat body 121, the valve cavity body 11, and the second valve seat body 131. The first piston head 142 and the first piston head 143 are respectively fixedly disposed at both ends of the valve core rod 141 and are respectively movably disposed in the first valve seat body 121 and the second valve seat body 131. The four sealing rings 144 are sequentially and fixedly disposed through the valve core rod 141, and can respectively be sealed and connected to the inner wall of the valve cavity body 11. The four sealing rings 144 move with the movement of the valve core rod 141, thereby realizing the gas path switching operation.

[0040] Please see Figure 1 , Figure 2 , Figure 3 and Figure 9 As shown, in this embodiment, the first solenoid valve 20 includes a solenoid valve body 21, a stationary iron core mechanism 22, a moving iron core mechanism 23, and a sealing plug 24. The solenoid valve body 21 is a hollow cavity and serves as the electromagnetic control body. The solenoid valve body 21 is sealed and fixedly connected to the first connecting cavity 1211. The stationary iron core mechanism 22 is adjustablely and fixedly mounted on the solenoid valve body 21. The moving iron core mechanism 23 is movably disposed through the solenoid valve body 21 and positioned below the stationary iron core mechanism 22. When the solenoid valve body 21 is energized, the stationary iron core mechanism 22 generates electromagnetic force to magnetically attract the moving iron core mechanism 23. The sealing plug 24 is fixedly connected to the moving iron core mechanism 23 and can seal the pilot air port 12121. It moves with the movement of the moving iron core mechanism 23, thereby achieving the sealing or opening operation of the pilot air port 12121. Specifically, the stationary core mechanism 22 includes a stationary core body 221 and a valve cap 222. The stationary core body 221 is adjustablely threaded onto the valve cap 222 and is disposed within the solenoid valve body 21. The valve cap 222 is fixedly connected to the solenoid valve body 21. To enhance the sealing performance of the valve cap 222 and the solenoid valve body 21, a second sealing element 2221 is provided at the connection between the valve cap 222 and the solenoid valve body 21. In this embodiment, the structure of the second solenoid valve 30 is similar to that of the first solenoid valve 20, so its specific structure will not be described in detail here.

[0041] It should be noted that the specific working process of the solenoid valve assembly 100 with multiple control modes of this utility model is as follows: When the first solenoid valve 20 fails, air can be supplied to the first valve seat body 121 through the first connecting interface mechanism 122. The gas entering the first valve seat body 121 pushes the valve core mechanism 14 to move, thereby realizing the gas path switching operation; air can also be supplied to the first valve seat body 121 through the second connecting interface 123. The gas entering the first valve seat body 121 pushes the first sealing member 1... The movement of 242 causes the first sealing element 1242 to push the valve core mechanism 14 to move, thereby realizing the gas path switching operation; at the same time, the main body of the push rod 1241 can be pressed directly, which drives the first sealing element 1242 to move, and the first sealing element 1242 pushes the valve core mechanism 14 to move, thereby realizing the gas path switching operation; when the second solenoid valve 30 fails, the second manual pressing mechanism 132 can be pressed directly, which pushes the valve core mechanism 14 to move, thereby realizing the gas path switching operation.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A solenoid valve assembly with multiple control modes, applied to the door of a public transportation vehicle, characterized in that, include: Valve chamber assembly; Two solenoid valves are respectively mounted on the valve chamber assembly and are each capable of sealing the valve chamber assembly; The valve cavity assembly includes a valve cavity body, which is a hollow cavity. A first exhaust port, an intake port, and a second exhaust port are sequentially disposed through one end of the valve cavity body. A first working port and a second working port are respectively disposed through the valve cavity body at the end opposite to the intake port. A first valve seat mechanism and a second valve seat mechanism are respectively connected to the valve cavity body at opposite ends. A valve core mechanism is movably disposed in the valve cavity body and its two ends are respectively movably disposed in the first valve seat mechanism and the second valve seat mechanism. The first valve seat mechanism includes a first valve seat body, which is a hollow cavity. The first valve seat body is fixedly connected to one side of the valve cavity body. The corresponding solenoid valve is fixedly installed on the first valve seat body and can perform a sealing operation on the first valve seat body. A first connecting interface mechanism, a second connecting interface, and a first manual pressing mechanism are respectively installed through the first valve seat body on the same side. The first manual pressing mechanism is movably and sealingly installed on the first valve seat body.

2. The solenoid valve assembly with multiple control modes according to claim 1, characterized in that, The first valve seat body is provided with a first connecting cavity, and the corresponding solenoid valve is detachably and fixedly connected to the first connecting cavity; the first valve seat body is provided with a first pilot air passage, which is connected to the first connecting cavity; the first valve seat body is also provided with a first air inlet passage, the two ends of which are connected to the first connecting cavity and the inner cavity of the first valve seat body respectively.

3. A solenoid valve assembly with multiple control modes according to claim 2, characterized in that, A first connecting channel, a second connecting channel, and a first pressing hole are respectively provided through the same side of the first valve seat body; the first connecting interface mechanism and the second connecting interface are respectively disposed in the first connecting channel and the second connecting channel; the first manual pressing mechanism is movably sealed in the first pressing hole; The first air intake channel and the first connecting channel are connected; the second connecting channel and the first pressing hole are connected.

4. A solenoid valve assembly with multiple control modes according to claim 3, characterized in that, The first connection interface mechanism includes a first connection interface and a one-way membrane sequentially disposed in the first connection channel; the one-way membrane allows gas in the first connection interface to enter the inner cavity of the first valve seat body in only one direction.

5. A solenoid valve assembly with multiple control modes according to claim 3, characterized in that, The first manual pressing mechanism includes a pressing rod body, which is movably sealed in the first pressing hole; a first sealing element is movably sealed in the inner cavity of the first valve seat body and fixedly connected to the pressing rod body. Gas entering the inner cavity of the first valve seat body through the second connection interface can drive the first sealing element to push the valve core mechanism to move.

6. A solenoid valve assembly with multiple control modes according to claim 1, characterized in that, The second valve seat mechanism includes a second valve seat body, which is a hollow cavity. The second valve seat body is fixedly connected to the valve cavity body on the other side opposite to the first valve seat mechanism. A second manual pressing mechanism is provided through the second valve seat body.

7. A solenoid valve assembly with multiple control modes according to claim 6, characterized in that, The second valve seat body is provided with a second connecting cavity, and the corresponding solenoid valve is detachably and fixedly connected to the second connecting cavity; the second valve seat body is provided with a second pilot air passage, which is connected to the second connecting cavity; the second valve seat body is also provided with a second air inlet passage, the two ends of which are connected to the second connecting cavity and the inner cavity of the second valve seat body, respectively.

8. A solenoid valve assembly with multiple control modes according to claim 6, characterized in that, The valve core mechanism includes a valve core rod body, which is movably disposed sequentially in the first valve seat body, the valve cavity body, and the second valve seat body; a first piston head and a first piston head are fixedly disposed at both ends of the valve core rod body, which are movably disposed in the first valve seat body and the second valve seat body, respectively; and four sealing rings are fixedly disposed sequentially through the valve core rod body, which are respectively capable of sealingly contacting and connecting with the inner wall of the valve cavity body.

9. A solenoid valve assembly with multiple control modes according to any one of claims 1-8, characterized in that, The solenoid valve includes a solenoid valve body, which is a hollow cavity; a stationary iron core mechanism that is adjustablely fixed on the solenoid valve body; a movable iron core mechanism that is movably disposed through the solenoid valve body and located below the stationary iron core mechanism; and a sealing plug that is fixedly connected to the movable iron core mechanism.

10. A solenoid valve assembly with multiple control modes according to claim 9, characterized in that, The stationary iron core mechanism includes a stationary iron core body and a valve cap; the valve cap is fixedly connected to the solenoid valve body; the stationary iron core body is adjustablely threadedly connected to the valve cap and disposed in the solenoid valve body.

11. A solenoid valve assembly with multiple control modes according to claim 9, characterized in that, The stationary iron core mechanism includes a stationary iron core body and a valve cap; the valve cap is fixedly connected to the solenoid valve body; the stationary iron core body is adjustablely threadedly connected to the valve cap and disposed in the solenoid valve body.

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