A combined multi-stage solenoid valve

Abstract

The present application relates to the technical fields of electromagnetic valve, in particular to a combined multi-connection electromagnetic valve, by setting a gas supplement channel communicated with the first gas outlet and the second gas outlet in the valve seat, and integrating a gas supplement switching assembly in the gas supplement channel, when it is needed to supplement the first gas outlet and the second gas outlet, by controlling the opening and closing of the first gas supplement electromagnetic valve and the second gas supplement electromagnetic valve, and rotating the angles of the corresponding first gas supplement valve core and the second gas supplement valve core in the switching assembly, the gas from the air inlet channel can be accurately guided to the target gas outlet, realizing the targeted gas supplement of any or multiple gas outlets, effectively solving the problems of single gas supplement target and non-switching of the existing multi-connection electromagnetic valve.

Description

Technical Field

[0001] This invention relates to the field of solenoid valve technology, specifically to a combined multi-unit solenoid valve. Background Technology

[0002] Precise control of multiple gas paths is a core technology in many fields such as industrial automation control, medical equipment, and analytical instruments. To achieve selective gas supply from a single gas source to multiple operating points, combined multi-channel solenoid valves have emerged. These valves typically integrate multiple independent outlet solenoid valves onto a common valve seat. By controlling the opening and closing of each outlet solenoid valve, on-demand flow from a single inlet to multiple outlets is achieved, thereby simplifying the piping structure and improving system integration and reliability.

[0003] However, in practical applications, when an actuator driven by a certain air outlet needs to maintain a specific pressure or flow rate, or when the pipeline pressure drops due to prolonged operation, dynamic air replenishment is often required to maintain system stability. To address this, existing technologies have developed solutions that incorporate a dedicated air replenishment solenoid valve on the valve seat. This solenoid valve is directly connected to the air intake source, and when it opens, it replenishes air to the specific air outlet pipeline connected to it.

[0004] However, this traditional air replenishment design has significant limitations. Its main drawback is that the function of the air replenishment solenoid valve is fixed and singular; it can typically only replenish air to one preset outlet, and the replenishment target cannot be changed. When different outlets in the system alternately require air replenishment under different operating conditions, the existing structure cannot flexibly switch the air replenishment channel, preventing it from providing targeted air replenishment to each outlet according to actual needs. Furthermore, it cannot switch to a working state that simultaneously replenishes air to all outlets to meet special requirements such as rapid recovery of the overall system pressure.

[0005] This inherent limitation greatly restricts the application flexibility and adaptability of multi-unit solenoid valves, making the equipment significantly inadequate when facing complex and ever-changing control requirements. Summary of the Invention

[0006] To address the problems existing in the prior art, a combined multi-port solenoid valve is provided. By setting a replenishment channel in the valve seat that communicates with the first and second air outlets, and integrating a replenishment switching component in the replenishment channel, when it is necessary to replenish the first and second air outlets, by controlling the opening and closing of the first and second replenishment solenoid valves and rotating the corresponding first and second replenishment valve cores in the switching component, the gas from the inlet channel can be guided to flow precisely to the target air outlet, realizing targeted replenishment of any one or more air outlets. This effectively solves the problem of existing multi-port solenoid valves having a single replenishment target and being unable to switch between them.

[0007] To address the problems of existing technologies, this invention provides a combined multi-port solenoid valve, comprising: a multi-port valve seat having an air inlet, a first air outlet, and a second air outlet, internally forming an interconnected air inlet channel and a replenishment channel, wherein the air inlet channel is connected to the air inlet, the first air outlet, and the second air outlet respectively, and the replenishment channel is connected to the first air outlet and the second air outlet; a main control solenoid valve, disposed at the connection between the air inlet and the air inlet channel, for controlling the opening and closing of the fluid passage at that point; a first air outlet solenoid valve, disposed at the connection between the air inlet channel and the first air outlet, for controlling the opening and closing of the fluid passage at that point; a second air outlet solenoid valve, disposed at the connection between the air inlet channel and the second air outlet, for controlling the opening and closing of the fluid passage at that point; and a replenishment switching assembly, arranged in the replenishment channel, having a first replenishment inlet and a second replenishment inlet both connected to the air inlet channel, and further comprising a rotatable component disposed in the replenishment channel. The system includes a first air supply valve core and a second air supply valve core. The first air supply valve core has three operating angles: at the first operating angle, it connects the first air supply inlet to the first air outlet; at the second operating angle, it connects the first air supply inlet to the second air outlet; and at the third operating angle, it connects the first air supply inlet to both the first and second air outlets. The second air supply valve core has three operating angles: at the fourth operating angle, it connects the second air supply inlet to the first air outlet; at the fifth operating angle, it connects the second air supply inlet to the second air outlet; and at the sixth operating angle, it connects the second air supply inlet to both the first and second air outlets. A first air supply solenoid valve is located at the connection between the first air supply inlet and the air intake channel, used to control the opening and closing of the fluid passage at that point. A second air supply solenoid valve is located at the connection between the second air supply inlet and the air intake channel, used to control the opening and closing of the fluid passage at that point.

[0008] Preferably, the air replenishment switching assembly further includes: a fixed cylinder, coaxially disposed in the air replenishment channel; a first air replenishment valve core and a second air replenishment valve core, coaxially rotatably disposed in the fixed cylinder; a first air replenishment inlet and a second air replenishment inlet disposed on the outer wall of the fixed cylinder; a first annular groove, coaxial and communicating with the first air replenishment inlet, is provided on the outer periphery of the first air replenishment valve core; a first through channel offset from the axis and a first connecting hole connecting the first annular groove and the first through channel are provided inside the first annular groove; a first end plate and a second end plate, coaxially disposed at both ends of the fixed cylinder; a first through hole and a second through hole are provided on the first end plate; a third through hole and a fourth through hole are provided on the second end plate; when the first air replenishment valve core is at a first working angle, the first through channel communicates with the first through hole; when the first air replenishment valve core is at a second working angle, the first through channel communicates with the third through hole; when the first air replenishment valve core is at a third working angle, the first through channel simultaneously communicates with the second through hole and the fourth through hole.

[0009] Preferably, the air replenishment switching assembly further includes a partition ring coaxially fixed inside the fixed cylinder. The partition ring is provided with an eighth and a ninth through hole offset from the axis. A fourth annular groove is provided at the end of the partition ring facing the first air replenishment valve core. A protrusion penetrating the partition ring is provided at the end of the first air replenishment valve core facing the first air outlet, and a first through channel extends into the protrusion. A sixth and a seventh through hole offset from the axis are also provided on the first end plate. A third annular groove coaxially and a fifth through hole connecting the third annular groove and the second air outlet are provided on the end face of the second end plate facing the first air replenishment valve core. The first air replenishment valve core is also provided with... It has a connecting channel connecting the third annular groove and the fourth annular groove; the second air replenishment valve core is annularly sleeved on the protrusion, and its outer circumference is provided with a second annular groove that is coaxial and connected to the second air replenishment inlet. Inside, there is a second through channel that is off-axis and a second connecting hole that connects the second annular groove and the second through channel; when the second air replenishment valve core is at the fourth working angle, the second through channel is connected to the sixth through hole; when the second air replenishment valve core is at the fifth working angle, the second through channel is connected to the eighth through hole; when the second air replenishment valve core is at the sixth working angle, the second through channel is simultaneously connected to the seventh through hole and the ninth through hole.

[0010] Preferably, the fixed cylinder is further provided with a first air supply hole and a second air supply hole, the first air supply hole being connected to the first air supply inlet and the first annular groove, and the second air supply hole being connected to the second air supply inlet and the second annular groove.

[0011] Preferably, a first annular bevel tooth structure is provided on the circumferential surface of the first air replenishment valve core; the air replenishment switching assembly further includes a first adjusting rod rotatably disposed in the multi-port valve seat, the bottom end of the first adjusting rod extending into the air replenishment channel and equipped with a first bevel gear; the first bevel gear meshes with the first annular bevel tooth structure to drive the first air replenishment valve core to rotate.

[0012] Preferably, a second annular bevel tooth structure is provided on the circumferential surface of the second air replenishment valve core; the air replenishment switching assembly further includes a second adjusting rod rotatably disposed in the multi-port valve seat, the bottom end of the second adjusting rod extending into the air replenishment channel and equipped with a second bevel gear; the second bevel gear meshes with the second annular bevel tooth structure to drive the second air replenishment valve core to rotate.

[0013] Preferably, the multi-port valve seat is further provided with two positioning cylinders coaxial with the first adjusting rod and the second adjusting rod respectively. The top end of the positioning cylinder is provided with a positioning ring. The top end of the first adjusting rod and the second adjusting rod are both provided with an internal toothed cap cylinder coaxially rotatably connected to them. The positioning ring is provided with a transmission gear distributed circumferentially on it. The upper part of the circumferential surface of the first adjusting rod and the second adjusting rod is provided with driven teeth distributed circumferentially on it. The transmission gear meshes with the internal toothed cap cylinder and the driven teeth.

[0014] Preferably, the positioning cylinder is provided with mounting holes distributed along its circumference, and a ball bearing that can extend radially along the positioning cylinder is provided in the mounting holes. The outer sides of the first adjusting rod and the second adjusting rod are both provided with grooves corresponding to the ball bearings. The positioning cylinder is also fitted with a pressure ring with an inner circumference that is conical. The ball bearings abut against the inner circumference of the pressure ring. An elastic element is provided between the pressure ring and the positioning ring.

[0015] Preferably, the top of the internal toothed cap is provided with an indicator arrow, and the multi-port valve seat is provided with a first rotation angle mark distributed circumferentially along the first adjusting rod and a second rotation angle mark distributed circumferentially along the second adjusting rod.

[0016] Preferably, the end of the second end plate facing the second air outlet is provided with an external threaded cylinder that is threadedly connected to the air supply channel.

[0017] The advantages of this application compared to the prior art are:

[0018] This application provides a replenishment channel within the valve seat that communicates with the first and second air outlets, and integrates a replenishment switching component within the replenishment channel. When replenishment is required for the first and second air outlets, the opening and closing of the first and second replenishment solenoid valves are controlled, and the angles of the corresponding first and second replenishment valve cores in the switching component are rotated. This allows the gas from the intake channel to flow precisely to the target air outlet, achieving targeted replenishment for any one or more air outlets. This effectively solves the problem of existing multi-solenoid valves having a single replenishment target and being unable to switch between them. Attached Figure Description

[0019] Figure 1 This is a perspective view of a combined multi-solenoid valve according to the present invention from a first-view perspective.

[0020] Figure 2 This is a side view of a combined multi-solenoid valve according to the present invention.

[0021] Figure 3 yes Figure 2 A sectional view along the AA direction.

[0022] Figure 4 yes Figure 2 BB direction sectional view.

[0023] Figure 5 yes Figure 2 A cross-sectional view along the CC direction.

[0024] Figure 6 This is a perspective view of a combined multi-solenoid valve of the present invention from a second perspective.

[0025] Figure 7 This is a top view of a combined multi-solenoid valve according to the present invention.

[0026] Figure 8 yes Figure 7 FF direction sectional view.

[0027] Figure 9 yes Figure 7 GG direction cross-sectional view.

[0028] Figure 10 yes Figure 7 HH direction cross-sectional view.

[0029] Figure 11 yes Figure 7 A cross-sectional view along the JJ direction.

[0030] Figure 12 This is a perspective view of the air supply switching component in a combined multi-stage solenoid valve according to the present invention, viewed from a first perspective.

[0031] Figure 13 This is a perspective view of the air supply switching component in a combined multi-stage solenoid valve of the present invention from a second perspective.

[0032] Figure 14 This is an exploded perspective view of the air supply switching component in a combined multi-stage solenoid valve according to the present invention.

[0033] Figure 15 This is a three-dimensional schematic diagram of the first air supply valve core and the separator ring in a combined multi-stage solenoid valve of the present invention.

[0034] The diagram is labeled as follows: 1. Multi-port valve seat; 11. Air inlet; 12. First air outlet; 13. Second air outlet; 14. Air inlet channel; 15. Air replenishment channel; 16. First rotation angle mark; 17. Second rotation angle mark; 2. Main control solenoid valve; 3. First air outlet solenoid valve; 4. Second air outlet solenoid valve; 5. Air replenishment switching assembly; 51. Fixed cylinder; 511. First air replenishment inlet; 512. Second air replenishment inlet; 513. First air replenishment hole; 514. Second air replenishment hole; 52. First air replenishment valve core; 521. First annular groove; 522. First through channel; 523. First connecting hole; 524. Protrusion; 525. Connecting channel; 526. First annular conical tooth structure; 53. Second air replenishment valve core; 531. Second annular groove; 532. Second through channel; 533. Second connecting hole; 534. Second annular conical tooth structure; 54. First end plate; 541, First through hole; 542, Second through hole; 543, Sixth through hole; 544, Seventh through hole; 55, Second end plate; 551, Third through hole; 552, Fourth through hole; 553, Third annular groove; 554, Fifth through hole; 555, External threaded cylinder; 56, Separator ring; 561, Eighth through hole; 562, Ninth through hole; 563, Fourth annular groove; 571, First adjustment 572. Rod; 573. First bevel gear; 574. Second adjusting rod; 581. Second bevel gear; 581. Positioning cylinder; 5811. Positioning ring; 582. Internal tooth cap; 5821. Indicator arrow; 583. Transmission gear; 584. Driven gear; 585. Ball bearing; 586. Pressure ring; 587. Groove; 588. Elastic element; 6. First air supply solenoid valve; 7. Second air supply solenoid valve; 8. Plug with flow orifice. Detailed Implementation

[0035] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1-15As shown, a combined multi-port solenoid valve includes: a multi-port valve seat 1, having an air inlet 11, a first air outlet 12, and a second air outlet 13, and having internally formed an interconnected air intake channel 14 and a replenishment channel 15, wherein the air intake channel 14 is connected to the air inlet 11, the first air outlet 12, and the second air outlet 13 respectively, and the replenishment channel 15 is connected to the first air outlet 12 and the second air outlet 13; and a main control solenoid valve 2, located at the connection between the air inlet 11 and the air intake channel 14, for controlling the fluid flow at that point. The system controls the flow path; a first exhaust solenoid valve 3 is located at the connection between the intake channel 14 and the first exhaust port 12, used to control the flow path at that location; a second exhaust solenoid valve 4 is located at the connection between the intake channel 14 and the second exhaust port 13, used to control the flow path at that location; and an exhaust switching assembly 5 is arranged in the exhaust channel 15, having a first exhaust inlet 511 and a second exhaust inlet 512 both connected to the intake channel 14, and further including a first exhaust inlet 512 rotatably disposed within the exhaust channel 15. The valve core 52 and the second air supply valve core 53; wherein, the first air supply valve core 52 has three working angles: at the first working angle, the first air supply inlet 511 is connected to the first air outlet 12; at the second working angle, the first air supply inlet 511 is connected to the second air outlet 13; at the third working angle, the first air supply inlet 511 is simultaneously connected to both the first air outlet 12 and the second air outlet 13; the second air supply valve core 53 has three working angles: at the fourth working angle, the second air supply inlet 511 is connected to both the first air outlet 12 and the second air outlet 13. The air outlet 12 is connected; at the fifth working angle, the second air supply inlet 512 is connected to the second air outlet 13; at the sixth working angle, the second air supply inlet 512 is simultaneously connected to the first air outlet 12 and the second air outlet 13; the first air supply solenoid valve 6 is located at the connection between the first air supply inlet 511 and the air intake channel 14, and is used to control the opening and closing of the fluid passage at that location; the second air supply solenoid valve 7 is located at the connection between the second air supply inlet 512 and the air intake channel 14, and is used to control the opening and closing of the fluid passage at that location.

[0037] A plug with a flow orifice is provided at the connection between the air intake channel 14 and the first air outlet 12, the connection between the air intake channel 14 and the second air outlet 13, the connection between the first replenishment air inlet 511 and the air intake channel 14, and the connection between the second replenishment air inlet 512 and the air intake channel 14.

[0038] A combined multi-port solenoid valve includes a multi-port valve seat 1 with an inlet 11, a first outlet 12, and a second outlet 13. An interconnected inlet channel 14 and a replenishment channel 15 are formed inside the valve seat. The inlet channel 14 is connected to the inlet 11, the first outlet 12, and the second outlet 13, respectively, while the replenishment channel 15 is connected to the first outlet 12 and the second outlet 13, forming a complete fluid passage system. A main control solenoid valve 2 is located at the connection between the inlet 11 and the inlet channel 14, used to control the opening and closing of the fluid passage at that point. A first outlet solenoid valve 3 is located at the connection between the inlet channel 14 and the first outlet 12, and a second outlet solenoid valve 4 is located at the connection between the inlet channel 14 and the second outlet 13, respectively used to control the opening and closing states of the corresponding outlets.

[0039] The air replenishment switching component 5 is integrated into the air replenishment channel 15, including a first air replenishment inlet 511 and a second air replenishment inlet 512 connected to the air intake channel 14, and a first air replenishment valve core 52 and a second air replenishment valve core 53 that are rotatably configured. The first air replenishment valve core 52 has three working angles: at the first working angle, the first air replenishment inlet 511 is connected to the first air outlet 12; at the second working angle, the first air replenishment inlet 511 is connected to the second air outlet 13; at the third working angle, the first air replenishment inlet 511 is connected to both the first air outlet 12 and the second air outlet 13. The second air replenishment valve core 53 also has three working angles: at the fourth working angle, the second air replenishment inlet 512 is connected to the first air outlet 12; at the fifth working angle, the second air replenishment inlet 512 is connected to the second air outlet 13; at the sixth working angle, the second air replenishment inlet 512 is connected to both the first air outlet 12 and the second air outlet 13. The first air replenishment solenoid valve 6 is located at the connection between the first air replenishment inlet 511 and the air intake channel 14, and the second air replenishment solenoid valve 7 is located at the connection between the second air replenishment inlet 512 and the air intake channel 14, respectively, for controlling the opening and closing of the corresponding air replenishment inlets. A plug with a flow orifice 8 is provided at the connection between the air intake channel 14 and the first air outlet 12, the connection between the air intake channel 14 and the second air outlet 13, the connection between the first air replenishment inlet 511 and the air intake channel 14, and the connection between the second air replenishment inlet 512 and the air intake channel 14, for precisely adjusting the flow characteristics of each channel.

[0040] When the system needs to replenish air to the first air outlet 12 or the second air outlet 13, by controlling the opening and closing states of the first replenishing solenoid valve 6 and the second replenishing solenoid valve 7, and correspondingly rotating the first replenishing valve core 52 or the second replenishing valve core 53 in the replenishing switching assembly 5 to the target working angle, the gas from the intake channel 14 can be guided to flow precisely to the target air outlet through the replenishing channel 15. By combining the control of the opening and closing of the two replenishing solenoid valves and the rotation angle of the two replenishing valve cores, targeted replenishment of air to any one or more air outlets can be achieved to meet different operating conditions.

[0041] By setting a gas replenishment channel 15 connected to the gas outlet in the multi-port valve seat 1, and integrating a rotatable gas replenishment valve core and an independently controlled gas replenishment solenoid valve in the gas replenishment channel 15, flexible and precise gas replenishment to multiple gas outlets is achieved, effectively solving the problem of single gas replenishment target and inability to switch between existing multi-port solenoid valves; the plugs 8 with flow orifices set at each connection point help to accurately adjust fluid parameters and improve the accuracy and stability of system control; the overall structure is compact and has a high degree of functional integration, making it suitable for multi-channel gas distribution and control needs under complex working conditions.

[0042] like Figure 4 , Figures 12-15 As shown, the air replenishment switching assembly 5 further includes: a fixed cylinder 51, coaxially disposed in the air replenishment channel 15; a first air replenishment valve core 52 and a second air replenishment valve core 53, coaxially rotatably disposed in the fixed cylinder 51; a first air replenishment inlet 511 and a second air replenishment inlet 512 disposed on the outer wall of the fixed cylinder 51; a first annular groove 521 coaxially disposed on the outer periphery of the first air replenishment valve core 52 and communicating with the first air replenishment inlet 511; and a first through channel 522 offset from the axis and a first connecting hole 523 connecting the first annular groove 521 and the first through channel 522; a first end plate 54 and a second end plate 550; and a second end plate 512. 5. The first end plate 54 is provided with a first through hole 541 and a second through hole 542, and the second end plate 55 is provided with a third through hole 551 and a fourth through hole 552. When the first air supply valve core 52 is in the first working angle, the first through channel 522 is connected to the first through hole 541. When the first air supply valve core 52 is in the second working angle, the first through channel 522 is connected to the third through hole 551. When the first air supply valve core 52 is in the third working angle, the first through channel 522 is connected to both the second through hole 542 and the fourth through hole 552.

[0043] The air replenishment switching assembly 5 also includes a fixed cylinder 51 coaxially disposed within the air replenishment channel 15. The first air replenishment valve core 52 and the second air replenishment valve core 53 are coaxially and rotatably mounted inside the fixed cylinder 51. The outer wall of the fixed cylinder 51 is provided with a first air replenishment inlet 511 and a second air replenishment inlet 512. The outer periphery of the first air replenishment valve core 52 is provided with a first annular groove 521 communicating with the first air replenishment inlet 511, and its interior is provided with a first through channel 522 offset from the axis. The first annular groove 521 and the first through channel 522 are connected through a first connecting hole 523.

[0044] A first end plate 54 and a second end plate 55 are coaxially arranged at both ends of the fixed cylinder 51. The first end plate 54 has a first through hole 541 and a second through hole 542, while the second end plate 55 has a third through hole 551 and a fourth through hole 552. When the first air replenishment valve core 52 rotates to the first working angle, its first through channel 522 communicates with the first through hole 541 on the first end plate 54; when it rotates to the second working angle, the first through channel 522 communicates with the third through hole 551 on the second end plate 55; when it rotates to the third working angle, the first through channel 522 simultaneously communicates with the second through hole 542 on the first end plate 54 and the fourth through hole 552 on the second end plate 55, thereby realizing different air replenishment path configurations.

[0045] With the above structure, the air supply switching component 5 can accurately guide the airflow through different guide holes to the target air outlet according to the rotation angle of the first air supply valve core 52, further enhancing the controllability and flexibility of the air supply path.

[0046] like Figure 4 , Figures 12-15 As shown, the air replenishment switching assembly 5 also includes a partition ring 56 coaxially fixed inside the fixed cylinder 51. The partition ring 56 is provided with an eighth through hole 561 and a ninth through hole 562 that are off-axis. The end of the partition ring 56 facing the first air replenishment valve core 52 is provided with a fourth annular groove 563. The end of the first air replenishment valve core 52 facing the first air outlet 12 is provided with a protrusion 524 that penetrates the partition ring 56, and a first through channel 522 extends into the protrusion 524. The first end plate 54 is also provided with a sixth through hole 543 and a seventh through hole 544 that are off-axis. The end face of the second end plate 55 facing the first air replenishment valve core 52 is provided with a coaxial third annular groove 553 and a fifth through hole 554 that connects the third annular groove 553 and the second air outlet 13. The first air replenishment valve core 52 is also provided with There is a connecting channel 525 connecting the third annular groove 553 and the fourth annular groove 563; the second air replenishment valve core 53 is annularly sleeved on the protrusion 524, and its outer periphery is provided with a second annular groove 531 coaxial with and connected to the second air replenishment inlet 512. Inside, there is a second through channel 532 off-axis and a second connecting hole 533 connecting the second annular groove 531 and the second through channel 532; when the second air replenishment valve core 53 is at the fourth working angle, the second through channel 532 is connected to the sixth through hole 543; when the second air replenishment valve core 53 is at the fifth working angle, the second through channel 532 is connected to the eighth through hole 561; when the second air replenishment valve core 53 is at the sixth working angle, the second through channel 532 is simultaneously connected to the seventh through hole 544 and the ninth through hole 562.

[0047] The air replenishment switching assembly 5 also includes a partition ring 56 coaxially fixed inside the fixed cylinder 51. The partition ring 56 has an eighth through hole 561 and a ninth through hole 562 offset from the axis, and a fourth annular groove 563 is provided at one end facing the first air replenishment valve core 52. The first air replenishment valve core 52 has a protrusion 524 penetrating the partition ring 56 at one end facing the first air outlet 12, and a first through channel 522 extends into the interior of the protrusion 524.

[0048] The first end plate 54 is also provided with a sixth through hole 543 and a seventh through hole 544 that are off-axis. The end face of the second end plate 55 facing the first air supply valve core 52 is provided with a coaxial third annular groove 553 and a fifth through hole 554 that connects the third annular groove 553 and the second air outlet 13. The first air supply valve core 52 is provided with a connecting channel 525 that connects the third annular groove 553 and the fourth annular groove 563.

[0049] The second air replenishment valve core 53 is annularly sleeved on the outside of the protrusion 524. Its outer periphery is provided with a second annular groove 531 that communicates with the second air replenishment inlet 512. Its interior is provided with a second through channel 532 that is off-axis. The second annular groove 531 and the second through channel 532 are connected through the second connecting hole 533.

[0050] When the second air supply valve core 53 rotates to the fourth working angle, the second through channel 532 is connected to the sixth through hole 543 on the first end plate 54; when it rotates to the fifth working angle, the second through channel 532 is connected to the eighth through hole 561 on the partition ring 56; when it rotates to the sixth working angle, the second through channel 532 is simultaneously connected to the seventh through hole 544 on the first end plate 54 and the ninth through hole 562 on the partition ring 56.

[0051] Through the above structural design, the second air replenishment valve core 53 can accurately guide the air replenishment flow according to different working angles, and work with the first air replenishment valve core 52 to achieve multi-path composite air replenishment control, further improving the system's adaptability and adjustment accuracy to different air outlet combinations.

[0052] like Figure 4 , Figures 12-15 As shown, the fixed cylinder 51 is also provided with a first air supply hole 513 and a second air supply hole 514. The first air supply hole 513 is connected to the first air supply inlet 511 and the first annular groove 521, and the second air supply hole 514 is connected to the second air supply inlet 512 and the second annular groove 531.

[0053] In the air replenishment switching assembly 5, the fixed cylinder 51 is also provided with a first air replenishment hole 513 and a second air replenishment hole 514. The first air replenishment hole 513 connects the first air replenishment inlet 511 and the first annular groove 521 on the outer periphery of the first air replenishment valve core 52, while the second air replenishment hole 514 connects the second air replenishment inlet 512 and the second annular groove 531 on the outer periphery of the second air replenishment valve core 53, thereby forming a complete air path connection from the air replenishment inlet to the corresponding valve core internal channel.

[0054] This structure enables the stable introduction of the replenishing airflow from the inlet on the outer wall of the fixed cylinder 51 to the valve core annular groove, providing an effective basis for subsequent control of the airflow path by rotating the valve core angle, and further ensuring the controllability of the replenishing process and the sealing of the channel.

[0055] like Figure 4 , Figure 5 As shown, a first annular bevel tooth structure 526 is provided on the circumferential surface of the first air replenishment valve core 52; the air replenishment switching assembly 5 also includes a first adjusting rod 571 rotatably disposed in the multi-port valve seat 1, the bottom end of the first adjusting rod 571 extends into the air replenishment channel 15 and is equipped with a first bevel gear 572; the first bevel gear 572 meshes with the first annular bevel tooth structure 526 to drive the first air replenishment valve core 52 to rotate.

[0056] In the air replenishment switching assembly 5, a first annular bevel tooth structure 526 is machined on the circumferential surface of the first air replenishment valve core 52. The assembly is also equipped with a first adjusting rod 571 rotatably mounted in the multi-port valve seat 1. The bottom end of the adjusting rod extends into the air replenishment channel 15 and is fitted with a first bevel gear 572. The first bevel gear 572 meshes with the first annular bevel tooth structure 526 on the first air replenishment valve core 52. By externally operating the first adjusting rod 571 to rotate, the first air replenishment valve core 52 can be precisely driven to rotate to the required working angle.

[0057] This gear transmission structure enables precise control of the angle of the internal air replenishment valve core from outside the valve seat. It is simple and reliable to operate and effectively improves the accuracy and response efficiency of air replenishment path switching.

[0058] like Figure 4 , Figure 5 As shown, a second annular bevel tooth structure 534 is provided on the circumferential surface of the second air replenishment valve core 53; the air replenishment switching assembly 5 also includes a second adjusting rod 573 rotatably disposed in the multi-port valve seat 1, the bottom end of the second adjusting rod 573 extends into the air replenishment channel 15 and is equipped with a second bevel gear 574; the second bevel gear 574 meshes with the second annular bevel tooth structure 534 to drive the second air replenishment valve core 53 to rotate.

[0059] In the air replenishment switching assembly 5, a second annular bevel tooth structure 534 is provided on the circumferential surface of the second air replenishment valve core 53. The assembly also includes a second adjusting rod 573 rotatably mounted in the multi-port valve seat 1, the bottom end of which extends into the air replenishment channel 15 and is fitted with a second bevel gear 574. The second bevel gear 574 meshes with the second annular bevel tooth structure 534 on the second air replenishment valve core 53, and the rotation angle of the second air replenishment valve core 53 can be precisely controlled by rotating the second adjusting rod 573.

[0060] By operating the corresponding adjustment levers externally, the working angles of the two air replenishment valve cores can be controlled independently or synchronously, further enhancing the system's ability to adjust multiple air replenishment paths and its operational flexibility. The bevel gear transmission structure ensures the accuracy and reliability of angle control, making the switching of the air replenishment process more stable and efficient.

[0061] like Figure 5 As shown, the multi-port valve seat 1 is also provided with two positioning cylinders 581 that are coaxial with the first adjusting rod 571 and the second adjusting rod 573 respectively. The top of the positioning cylinder 581 is provided with a positioning ring 5811. The top of the first adjusting rod 571 and the second adjusting rod 573 are both provided with an internal toothed cap 582 that is rotatably connected to them on the same axis. The positioning ring 5811 is provided with a transmission gear 583 that is distributed along its circumference. The upper part of the circumferential surface of the first adjusting rod 571 and the second adjusting rod 573 is provided with a driven tooth 584 that is distributed along its circumference. The transmission gear 583 meshes with the internal toothed cap 582 and the driven tooth 584.

[0062] Two positioning cylinders 581, coaxial with the first adjusting rod 571 and the second adjusting rod 573 respectively, are also provided on the multi-port valve seat 1. A positioning ring 5811 is provided at the top of each positioning cylinder 581. An internal toothed cap 582, rotatably connected to the top of both the first adjusting rod 571 and the second adjusting rod 573, is mounted on the top of each rod. Driven gears 583 are distributed circumferentially on the positioning ring 5811, and driven teeth 584 are correspondingly distributed circumferentially on the upper part of the circumferential surfaces of the first adjusting rod 571 and the second adjusting rod 573. The drive gears 583 mesh with both the internal toothed cap 582 and the driven teeth 584 on the adjusting rods, forming a reduction transmission mechanism.

[0063] This reduction gear mechanism ensures that when the operator rotates the internal gear cap 582, the input angle is precisely converted by the transmission system into the corresponding rotation angle of the adjusting rod and the air replenishment valve core, thereby achieving accurate switching of the working position of the air replenishment valve core. This design not only improves the accuracy and repeatability of angle control, but also enhances the stability of operation and the tactile feedback through mechanical reduction, making the switching of the air replenishment path more reliable and intuitive.

[0064] like Figure 5As shown, the positioning cylinder 581 is provided with mounting holes distributed along its circumference. A ball bearing 585 that can extend radially along the positioning cylinder 581 is provided in the mounting holes. The outer sides of the first adjusting rod 571 and the second adjusting rod 573 are both provided with grooves 587 corresponding to the ball bearing 585. The positioning cylinder 581 is also fitted with a pressure ring 586 with a conical inner circumference. The ball bearing 585 abuts against the inner circumference of the pressure ring 586. An elastic element 588 is provided between the pressure ring 586 and the positioning ring 5811.

[0065] The positioning cylinder 581 of the multi-port valve seat 1 has several mounting holes distributed circumferentially, and radially expandable balls 585 are installed in the holes. The outer surfaces of the first adjusting rod 571 and the second adjusting rod 573 are respectively provided with annular grooves 587 that match the balls 585. A pressure ring 586 with an inner conical structure is fitted onto the positioning cylinder 581, and the balls 585 always maintain contact with the conical inner surface of the pressure ring 586. An elastic element 588 is installed between the pressure ring 586 and the positioning ring 5811, and the pressure ring 586 continuously applies radial pressure to the balls 585 through preload.

[0066] This structure constitutes a reliable axial positioning and tactile feedback mechanism. When the adjusting rod rotates, the ball bearing 585 undergoes periodic radial displacement under the action of the conical surface of the pressure ring 586, creating a clear gear position feel with the groove 587 of the adjusting rod. The continuous pressure provided by the elastic element 588 ensures positioning stability, effectively preventing accidental rotation of the adjusting rod, while providing the operator with clear angle switching feedback, further improving the accuracy of the air replenishment valve core angle adjustment and the operating experience.

[0067] like Figure 7 As shown, the top of the internal toothed cap 582 is provided with an indicator arrow 5821, and the multi-port valve seat 1 is provided with a first rotation angle mark 16 distributed circumferentially along the first adjusting rod 571 and a second rotation angle mark 17 distributed circumferentially along the second adjusting rod 573.

[0068] A clear indicator arrow 5821 is provided at the top of the internal toothed cap 582. At the same time, a first rotation angle mark 16 is distributed along the circumference of the first adjusting rod 571 and a second rotation angle mark 17 is distributed along the circumference of the second adjusting rod 573 on the surface of the multi-port valve seat 1. These marks correspond precisely to the various working angle positions of the first air replenishment valve core 52 and the second air replenishment valve core 53.

[0069] By observing the alignment of the indicator arrow 5821 with the corresponding angle mark, operators can intuitively confirm the current working status of the first air replenishment valve core 52 and the second air replenishment valve core 53. This visual indication system greatly simplifies the valve core angle adjustment process, enabling operators to quickly and accurately switch the air replenishment path to the target mode, effectively avoiding misoperation and improving the convenience and reliability of equipment calibration.

[0070] like Figure 14 As shown, the end of the second end plate 55 facing the second air outlet 13 is provided with an external threaded cylinder 555 that is threadedly connected to the air supply channel 15.

[0071] An external threaded cylinder 555 is provided at one end of the second end plate 55 facing the second air outlet 13. The external threaded cylinder 555 forms a threaded engagement with the threaded structure of the inner wall of the air supply channel 15.

[0072] This threaded connection structure ensures the reliable fixation of the second end plate 55 within the air supply channel 15, guaranteeing both the stability of the component assembly and the effective sealing performance of the entire air supply switching module. The threaded connection also facilitates precise positioning during installation and disassembly for later maintenance, improving the product's maintainability and service life.

[0073] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A combined multi-way electromagnetic valve, characterized by comprising: The application relates to a multi-connection valve seat, which comprises an air inlet, a first air outlet and a second air outlet, and an air inlet channel and a supplementary air channel formed in the valve seat and communicated with each other, wherein the air inlet channel is communicated with the air inlet, the first air outlet and the second air outlet, and the supplementary air channel is communicated with the first air outlet and the second air outlet; a main control electromagnetic valve is arranged at the communication position of the air inlet and the air inlet channel and used for controlling the opening and closing of the fluid passage; a first air outlet electromagnetic valve is arranged at the communication position of the air inlet channel and the first air outlet and used for controlling the opening and closing of the fluid passage; a second air outlet electromagnetic valve is arranged at the communication position of the air inlet channel and the second air outlet and used for controlling the opening and closing of the fluid passage; a supplementary air switching assembly is arranged in the supplementary air channel and comprises a first supplementary air inlet and a second supplementary air inlet communicated with the air inlet channel, and a first supplementary air valve core and a second supplementary air valve core rotatably arranged in the supplementary air channel; the first supplementary air valve core has three working angles, the first working angle makes the first supplementary air inlet communicated with the first air outlet, the second working angle makes the first supplementary air inlet communicated with the second air outlet, and the third working angle makes the first supplementary air inlet communicated with the first air outlet and the second air outlet at the same time; the second supplementary air valve core has three working angles, the fourth working angle makes the second supplementary air inlet communicated with the first air outlet, the fifth working angle makes the second supplementary air inlet communicated with the second air outlet, and the sixth working angle makes the second supplementary air inlet communicated with the first air outlet and the second air outlet at the same time; a first supplementary air electromagnetic valve is arranged at the communication position of the first supplementary air inlet and the air inlet channel and used for controlling the opening and closing of the fluid passage; and a second supplementary air electromagnetic valve is arranged at the communication position of the second supplementary air inlet and the air inlet channel and used for controlling the opening and closing of the fluid passage. The supplementary air switching assembly further comprises a fixed cylinder coaxially arranged in the supplementary air channel, the first supplementary air valve core and the second supplementary air valve core are coaxially arranged in the fixed cylinder, the first supplementary air inlet and the second supplementary air inlet are arranged on the outer wall of the fixed cylinder, the outer periphery of the first supplementary air valve core is provided with a first ring groove coaxial with the first supplementary air inlet and communicated with the first supplementary air inlet, the first ring groove is internally provided with a first through channel deviated from the axis and a first communication hole communicated with the first ring groove and the first through channel; first and second end plates are coaxially arranged at the two ends of the fixed cylinder, the first end plate is provided with first and second guide holes, and the second end plate is provided with third and fourth guide holes; when the first supplementary air valve core is at the first working angle, the first through channel is communicated with the first guide hole; when the first supplementary air valve core is at the second working angle, the first through channel is communicated with the third guide hole; and when the first supplementary air valve core is at the third working angle, the first through channel is communicated with the second guide hole and the fourth guide hole at the same time. The supplementary air switching assembly further comprises a separation ring coaxially fixed in the fixed cylinder, the separation ring is provided with an eighth guide hole and a ninth guide hole deviated from the axis, and the end of the separation ring facing the first supplementary air valve core is provided with a fourth ring groove; the end of the first supplementary air valve core facing the first air outlet is provided with a convex column penetrating through the separation ring, and the first through channel extends into the convex column. ​ ​ ​ ​ ​ ​ 2. The combined multi-way electromagnetic valve according to claim 1, wherein ​ ​ ​ ​ ​ ​ 3. The combined multi-way electromagnetic valve according to claim 2, wherein ​ ​ The first end plate is further provided with a sixth through hole and a seventh through hole which are offset from the axis; The second end plate is provided with a coaxial third annular groove on the end face facing the first air supplement valve core, and a fifth through hole which communicates the third annular groove and the second air outlet; The first air supplement valve core is further provided with a communication hole which communicates the third annular groove and the fourth annular groove; The second air supplement valve core is annularly sleeved on the convex column, and is provided with a coaxial second annular groove on the outer periphery and in communication with the second air supplement inlet, and is internally provided with a second through channel which is offset from the axis and a second communication hole which communicates the second annular groove and the second through channel; When the second air supplement valve core is at the fourth working angle, the second through channel is in communication with the sixth through hole; When the second air supplement valve core is at the fifth working angle, the second through channel is in communication with the eighth through hole; When the second air supplement valve core is at the sixth working angle, the second through channel is in communication with the seventh through hole and the ninth through hole at the same time.

4. The combined multi-way electromagnetic valve according to claim 3, wherein The fixed cylinder is further provided with a first air supplement hole and a second air supplement hole, the first air supplement hole is in communication with the first air supplement inlet and the first annular groove, and the second air supplement hole is in communication with the second air supplement inlet and the second annular groove.

5. The combined multi-way electromagnetic valve according to any one of claims 1 to 4, wherein The circumferential surface of the first air supplement valve core is provided with a first annular bevel gear structure; The air supplement switching assembly further comprises a first adjusting rod which is rotatably arranged in the multi-way valve seat, the bottom end of the first adjusting rod extends into the air supplement channel and is provided with a first bevel gear; The first bevel gear is in mesh with the first annular bevel gear structure to drive the first air supplement valve core to rotate.

6. A modular solenoid valve according to claim 5, wherein The circumferential surface of the second air supplement valve core is provided with a second annular bevel gear structure; The air supplement switching assembly further comprises a second adjusting rod which is rotatably arranged in the multi-way valve seat, the bottom end of the second adjusting rod extends into the air supplement channel and is provided with a second bevel gear; The second bevel gear is in mesh with the second annular bevel gear structure to drive the second air supplement valve core to rotate.

7. The combined multi-way electromagnetic valve according to claim 6, wherein The multi-way valve seat is further provided with two positioning cylinders which are coaxial with the first adjusting rod and the second adjusting rod respectively, the top end of the positioning cylinder is provided with a positioning ring, the top end of the first adjusting rod and the second adjusting rod are both provided with an inner toothed cap cylinder which is coaxially rotatably connected therewith, the positioning ring is provided with a transmission gear which is distributed along the circumferential direction thereof, and the circumferential surface of the first adjusting rod and the second adjusting rod is both provided with a driven tooth which is distributed along the circumferential direction thereof, the transmission gear is in mesh with the inner toothed cap cylinder and the driven tooth.

8. The combined multi-way electromagnetic valve according to claim 7, wherein The positioning cylinder is provided with a mounting hole which is distributed along the circumferential direction thereof, the mounting hole is provided with a ball which can extend radially along the positioning cylinder, the outer side of the first adjusting rod and the second adjusting rod is both provided with a groove which corresponds to the ball, and the positioning cylinder is further sleeved with a pressure ring whose inner periphery is conical, the ball abuts against the inner periphery of the pressure ring, and an elastic element is arranged between the pressure ring and the positioning ring.

9. The combined multi-way electromagnetic valve according to claim 7, wherein The top end of the inner toothed cap cylinder is provided with an indicating arrow, the multi-way valve seat is provided with a first rotation angle mark which is distributed along the circumferential direction of the first adjusting rod and a second rotation angle mark which is distributed along the circumferential direction of the second adjusting rod.

10. The modular solenoid valve according to any one of claims 2 to 4, wherein The end of the second end plate facing the second air outlet is provided with an external thread cylinder which is threadedly connected with the air supplement channel.

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