A multi-item pressure control one-way valve device

Abstract

The application relates to the technical field of one-way valves, and discloses a one-way valve device with multiple pressure control functions, which comprises a valve body, a first end cover and a second end cover, one end of the valve body close to the first end cover is provided with a positioning groove, one end of the valve body close to the first end cover is fixedly provided with an insertion block, the outer wall of the insertion block is provided with a first mounting groove, and the inner wall of the first mounting groove is provided with a first sealing ring. The one-way valve device with multiple pressure control functions can make the pre-tightening force of the spring borne by the block more uniform, avoid the block from being skewed due to force, cause jamming, and be out of synchronization in opening and closing, ensure that the opening and closing actions of the valve ball are more smooth, and disperse the vibration load caused by medium impact through multiple springs, avoid fatigue failure of a single spring caused by long-term use, improve the stability during use, and realize the rapid positioning of the first end cover through the design of the positioning block, the positioning groove and the insertion block and the insertion groove, avoid the first end cover from moving or being misaligned during assembly, and improve the assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of check valve technology, specifically to a check valve device with multiple pressure control functions. Background Technology

[0002] The multi-pressure control check valve device for deep-sea applications is a core component of the fluid and hydraulic control system for deep-sea equipment, specifically designed for the extreme conditions of ultra-high pressure, strong corrosion, and alternating low temperatures in the deep sea. The device innovatively integrates multiple hierarchical controllable check valve units, possessing multiple pressure control functions such as unidirectional flow, reverse shut-off, staged pressure holding, overload overflow, and pressure compensation. This overcomes the technical bottlenecks of traditional single valves, which suffer from limited functionality, slow response in deep-sea conditions, and susceptibility to seal failure. The valve body is manufactured using a one-piece forging process with titanium alloy or duplex stainless steel, paired with a metal-non-metal composite sealing pair. It is adaptable to deep-sea environments at depths of tens of thousands of meters, withstanding external water pressure exceeding 110 MPa, while maintaining millisecond-level opening and closing response and zero-leakage sealing performance. It can maintain stable operation even under long-term corrosion from high-salinity seawater. This device is widely used in deep-sea pressure-holding sampling equipment, underwater oil and gas production systems, and ROV hydraulic actuators, serving as a core safety guarantee component for deep-sea resource exploration, scientific research, and engineering operations.

[0003] Chinese Invention Patent Publication No. CN223923428U discloses an alternating check valve. The specification of this alternating check valve states that by adding a buffer reinforcement plate to the spring, it effectively absorbs the impact force caused by sudden changes in fluid flow or pressure fluctuations, reducing excessive deformation and movement of the spring, significantly improving the product's durability and reliability, and significantly reducing maintenance frequency and costs. However, this alternating check valve only uses a single spring, which is prone to fatigue failure after long-term use. Furthermore, it lacks a positioning structure for the first end cap, making it prone to shifting or misalignment during assembly, resulting in low assembly efficiency, poor practicality, and difficulty in widespread use. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a one-way valve device with multiple pressure control functions. It can effectively solve the problems in the prior art, which only sets a single spring, which is prone to fatigue failure after long-term use, and does not have a positioning structure for the first end cover. During assembly, the first end cover is prone to movement or misalignment, resulting in low assembly efficiency, poor practicality, and inconvenience for widespread use.

[0005] The technical solution adopted in this invention is as follows: a multi-pressure control check valve device, comprising a valve body, a first end cap, and a second end cap. A positioning groove is formed at the end of the valve body near the first end cap. A plug is fixedly installed at the end of the valve body near the first end cap. A first mounting groove is formed on the outer wall of the plug. A first sealing ring is provided on the inner wall of the first mounting groove. A slot is formed at the end of the first end cap near the valve body. A positioning block is fixedly installed at the end of the first end cap near the valve body. A first bolt and a second bolt are threadedly connected to the end of the first end cap near the valve body. The valve body has a first guide groove at one end near the second end cover. A first guide block is fixedly installed at one end of the second end cover near the valve body. A second mounting groove is provided at one end of the second end cover near the valve body. A second sealing ring is provided on the inner wall of the second mounting groove. A third bolt is threaded to the outer wall of the second end cover. A first connector assembly and a second connector assembly are provided on the outer wall of the valve body. A stop block is slidably connected to the inner wall of the valve body at one end near the second end cover. A valve ball is provided at the end of the stop block away from the second end cover. A spring is provided between the second end cover and the stop block.

[0006] Preferably, the first connector assembly includes an interface, the inner wall of which has a second guide groove, the outer wall of which has an external thread, a connector body at the end of the interface away from the valve body, a second guide block fixedly installed at the end of the connector body near the interface, a third mounting groove at the end of the connector body near the interface, a third sealing ring at the inner wall of the third mounting groove, and a sleeve slidably connected to the outer wall of the connector body near the interface, the inner wall of the sleeve having an internal thread, and a protrusion fixedly installed on the outer wall of the sleeve. The first connector assembly and the second connector assembly have the same structure.

[0007] Preferably, the positioning block and the positioning groove are plug-in installed, and the plug-in block and the slot are plug-in installed.

[0008] Using the above technical solution, the worker inserts the positioning block into the positioning groove and the insert block into the slot, which can achieve rapid positioning of the first end cover. During assembly, this avoids the first end cover from shifting or becoming misaligned, thus improving assembly efficiency.

[0009] Preferably, the first bolt extends through the first end cap into the interior of the valve body, and the second bolt extends through the first end cap into the interior of the valve body.

[0010] With the above technical solution, after the first end cover is quickly positioned, the worker inserts the first bolt through the first end cover and extends it into the valve body, and then inserts the second bolt through the first end cover and extends it into the valve body. This allows for the quick fixing of the first end cover, making it easy to disassemble and assemble during use or assembly.

[0011] Preferably, the threads of the first bolt and the second bolt are in opposite directions.

[0012] By employing the above technical solution, and through the design that the threads of the first bolt and the second bolt have opposite directions, the loosening tendencies of the first bolt and the second bolt are mutually restrained and locked in the opposite direction when subjected to high-pressure fluid impact or equipment vibration, which can prevent the first end cover from loosening and falling off, and improve the stability during operation.

[0013] Preferably, the first guide block and the first guide groove are plugged into each other, and the third bolt extends through the second end cover into the interior of the valve body.

[0014] With the above technical solution, the staff inserts the first guide block into the first guide groove and then inserts the third bolt through the second end cover to the inside of the valve body, which can quickly fix the second end cover. After long-term use, the internal springs and other vulnerable parts can be quickly replaced, reducing the later maintenance cost.

[0015] Preferably, the second guide block and the second guide groove are installed by insertion, and the external thread and the internal thread are adapted to each other.

[0016] Using the above technical solution, the worker inserts the second guide block into the inside of the second guide groove, and then rotates the sleeve to make the external thread and internal thread connect, which can realize the quick connection between interfaces and facilitate quick disassembly and assembly during use or assembly.

[0017] Preferably, the bumps are provided in multiple identical shapes, and the multiple bumps are arranged in a ring.

[0018] The above technical solution, with multiple protrusions, can increase the friction with the hand, prevent slippage during operation, and further improve the ease of installation and maintenance.

[0019] Preferably, there are three identical first sealing rings, second sealing rings and third sealing rings, and the three first sealing rings, second sealing rings and third sealing rings are distributed at equal intervals.

[0020] The above technical solution, through the design of the first sealing ring, the second sealing ring and the third sealing ring, can reduce the risk of media leakage, ensure long-term operation of the whole system, and improve the overall sealing performance.

[0021] Preferably, there are five identical springs, and the five springs are distributed in a five-point pattern.

[0022] The above technical solution, through the design of five springs, makes the spring preload on the stop block more uniform, avoids the stop block being biased and causing jamming and asynchronous opening and closing, ensures smoother opening and closing of the valve ball, and at the same time, the multi-point springs can disperse the vibration load caused by the impact of the medium, avoid fatigue failure caused by long-term use of a single spring, and improve the stability during use.

[0023] Preferably, the valve body, the first end cap, and the second end cap are all made of one of titanium alloy, super duplex stainless steel, or nickel-based corrosion-resistant alloy.

[0024] Through the above technical solutions, titanium alloys, super duplex stainless steels, or nickel-based corrosion-resistant alloys all possess excellent resistance to pressure and seawater corrosion, enabling the valve body, first end cap, and second end cap to be used in deep-sea environments, thus improving their service life.

[0025] Compared with the prior art, the present invention provides a device with multiple pressure-controlled check valves, which has the following advantages: 1. This multi-pressure control check valve device, through the design of positioning blocks and positioning grooves and insert blocks and slots, can achieve rapid positioning of the first end cover. During assembly, it can prevent the first end cover from shifting or misaligning, thus improving assembly efficiency. In addition, the design of the first bolt and the second bolt can achieve rapid fixing of the first end cover. It is convenient to quickly disassemble and assemble during use or assembly. Through the design of the opposite helical direction of the first bolt and the second bolt, the loosening tendency of the first bolt and the second bolt is mutually restrained and locked in the opposite direction when subjected to high pressure fluid impact or equipment vibration, which can prevent the first end cover from loosening and falling off, thus improving the stability during operation. 2. This multi-pressure control check valve device, through the cooperation of the first guide block, the first guide groove, and the third bolt, enables the quick fixing of the second end cover. After long-term use, easily worn parts such as internal springs can be quickly replaced, reducing later maintenance costs. Through the cooperation of the second guide block, the second guide groove, and the external and internal threads, it enables quick connection between interfaces, facilitating quick disassembly and assembly during use or assembly. Multiple protrusions increase the friction with the hand, preventing slippage and further improving the ease of installation and maintenance. The design of the first, second, and third sealing rings reduces the risk of media leakage, ensuring long-term operation and improving overall sealing performance.

[0026] 3. This multi-pressure control check valve device, through the design of five springs, ensures that the spring preload on the stop block is more evenly distributed, avoiding jamming and asynchronous opening and closing caused by uneven force on the stop block, and ensuring smoother opening and closing of the valve ball. At the same time, the multiple springs can disperse the vibration load caused by the impact of the medium, avoiding fatigue failure caused by long-term use of a single spring, and improving the stability during use. Titanium alloy, super duplex stainless steel or nickel-based corrosion-resistant alloy all have excellent pressure resistance and seawater immersion corrosion resistance, so that the valve body, first end cover and second end cover can be used in deep-sea environments, improving their service life. Attached Figure Description

[0027] Figure 1 This is a first-view three-dimensional structural diagram of the pressure-controlled check valve device of the present invention. Figure 2 This is a second-view three-dimensional structural diagram of the pressure-controlled check valve device of the present invention. Figure 3 This is a schematic diagram of the half-section structure of the present invention; Figure 4 This is a schematic diagram of the first end cap mounting structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the first end cap of the present invention; Figure 6 This is a schematic diagram of the second end cap mounting structure of the present invention; Figure 7 This is a schematic diagram of the installation structure of the first connector assembly of the present invention; Figure 8 This is a schematic diagram of the second guide block mounting structure of the present invention; Figure 9 This is a schematic diagram of the installation structure of the first guide block of the present invention.

[0028] The components are as follows: 1. Valve body; 2. First end cap; 3. Second end cap; 4. Positioning groove; 5. Insert block; 6. First mounting groove; 7. First sealing ring; 8. Slot; 9. Positioning block; 10. First bolt; 11. Second bolt; 14. First guide groove; 15. Second mounting groove; 16. Second sealing ring; 17. First guide block; 18. Third bolt; 19. First connector assembly; 1901. Interface; 1902. Second guide groove; 1903. External thread; 1904. Connector body; 1905. Second guide block; 1906. Third mounting groove; 1907. Third sealing ring; 1908. Sleeve; 1909. Internal thread; 1910. Protrusion; 20. Second connector assembly; 21. Abutment; 22. Valve ball; 23. Spring. Detailed Implementation

[0029] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: like Figures 1-6 As shown, the present invention provides a one-way valve device with multiple pressure control, including a valve body 1, a first end cap 2, and a second end cap 3. A positioning groove 4 is formed at the end of the valve body 1 near the first end cap 2. A plug 5 is fixedly installed at the end of the valve body 1 near the first end cap 2. A first mounting groove 6 is formed on the outer wall of the plug 5, and a first sealing ring 7 is provided on the inner wall of the first mounting groove 6. A slot 8 is formed at the end of the first end cap 2 near the valve body 1. A positioning block 9 is fixedly installed at the end of the first end cap 2 near the valve body 1. A first bolt 10 and a second bolt 11 are threadedly connected to the end of the first end cap 2 near the valve body 1. One end of the second end cover 3 is provided with a first guide groove 14. A first guide block 17 is fixedly installed on the end of the second end cover 3 near the valve body 1. A second mounting groove 15 is provided on the end of the second end cover 3 near the valve body 1. A second sealing ring 16 is provided on the inner wall of the second mounting groove 15. A third bolt 18 is threadedly connected to the outer wall of the second end cover 3. A first connector assembly 19 and a second connector assembly 20 are provided on the outer wall of the valve body 1. A stop block 21 is slidably connected to the inner wall of the valve body 1 near the end of the second end cover 3. A valve ball 22 is provided on the end of the stop block 21 away from the second end cover 3. A spring 23 is provided between the second end cover 3 and the stop block 21.

[0031] See further Figures 7-9 In this example, the first connector assembly 19 includes an interface 1901. The inner wall of the interface 1901 has a second guide groove 1902, and the outer wall of the interface 1901 has an external thread 1903. A connector body 1904 is provided at the end of the interface 1901 away from the valve body 1. A second guide block 1905 is fixedly installed at the end of the connector body 1904 near the interface 1901. A third mounting groove 1906 is provided at the end of the connector body 1904 near the interface 1901. A third sealing ring 1907 is provided on the inner wall of the third mounting groove 1906. A sleeve 1908 is slidably connected to the outer wall of the connector body 1904 near the interface 1901. The inner wall of the sleeve 1908 has an internal thread 1909, and a protrusion 1910 is fixedly installed on the outer wall of the sleeve 1908. The first connector assembly 19 and the second connector assembly 20 have the same structure.

[0032] For further settings, see Figure 4 and Figure 5In this example, the positioning block 9 and the positioning groove 4 are connected by a plug-in joint, and the plug block 5 and the slot 8 are also connected by a plug-in joint. Based on this setup, the operator inserts the positioning block 9 into the positioning groove 4 and simultaneously inserts the plug block 5 into the slot 8, enabling rapid positioning of the first end cover 2. During assembly, this prevents the first end cover 2 from shifting or becoming misaligned, thus improving assembly efficiency.

[0033] For further settings, see Figure 4 In this example, the first bolt 10 penetrates the first end cover 2 and extends into the interior of the valve body 1, and the second bolt 11 penetrates the first end cover 2 and extends into the interior of the valve body 1. With this configuration, after the first end cover 2 is quickly positioned, the operator can quickly fix the first end cover 2 by inserting the first bolt 10 through the first end cover 2 into the interior of the valve body 1, and then inserting the second bolt 11 through the first end cover 2 into the interior of the valve body 1. This facilitates quick assembly and disassembly during use or assembly.

[0034] Furthermore, the threads of the first bolt 10 and the second bolt 11 are in opposite directions. Based on this design, the opposite thread directions of the first bolt 10 and the second bolt 11 mutually restrain and lock each other in the opposite direction when subjected to high-pressure fluid impact or equipment vibration, thus preventing the first end cap 2 from loosening and falling off, and improving operational stability.

[0035] For further settings, see Figure 6 and Figure 9 In this example, the first guide block 17 and the first guide groove 14 are plug-in installed, and the third bolt 18 extends through the second end cover 3 into the interior of the valve body 1. With this configuration, the operator inserts the first guide block 17 into the first guide groove 14 and then extends the third bolt 18 through the second end cover 3 into the interior of the valve body 1, enabling quick fixing of the second end cover 3. After prolonged use, easily damaged parts such as the internal spring 23 can be quickly replaced, reducing subsequent maintenance costs.

[0036] For further settings, see Figure 7 and Figure 8 In this example, the second guide block 1905 and the second guide groove 1902 are plug-in installed, with the external thread 1903 and the internal thread 1909 being compatible. Based on this setup, the operator inserts the second guide block 1905 into the second guide groove 1902 and then rotates the sleeve 1908, causing the external thread 1903 and the internal thread 1909 to connect threadedly. This allows for quick connection between interfaces 1901 and 1902, facilitating rapid assembly and disassembly during use or assembly.

[0037] Furthermore, multiple identical protrusions 1910 are provided, arranged in a ring. This arrangement increases the friction with the hand, preventing slippage and further improving the ease of installation and maintenance.

[0038] For further settings, see Figure 4 , Figure 6 and Figure 7 In this example, three identical first sealing rings 7, second sealing rings 16, and third sealing rings 1907 are provided, and the three first sealing rings 7, second sealing rings 16, and third sealing rings 1907 are distributed at equal intervals. Based on this design, the risk of media leakage can be reduced, ensuring long-term operation and improving overall sealing performance.

[0039] For further settings, see Figure 3 In this example, five identical springs 23 are provided, and the five springs 23 are distributed in a five-point manner. According to this arrangement, the preload force of the springs 23 on the stop block 21 is more evenly distributed, avoiding jamming and asynchronous opening and closing caused by uneven force on the stop block 21, ensuring smoother opening and closing of the valve ball 22. At the same time, the multiple springs 23 can disperse the vibration load caused by the impact of the medium, preventing fatigue failure of a single spring 23 due to long-term use, and improving the stability during use.

[0040] For further settings, see Figure 1 and Figure 2 In this example, valve body 1, first end cap 2, and second end cap 3 are all made of one of the following: titanium alloy, super duplex stainless steel, or nickel-based corrosion-resistant alloy. Based on this design, titanium alloy, super duplex stainless steel, or nickel-based corrosion-resistant alloy all possess excellent resistance to pressure and seawater corrosion, enabling valve body 1, first end cap 2, and second end cap 3 to be used in deep-sea environments, thus extending their service life.

[0041] The following example illustrates the operation of the one-way valve device with multiple pressure controls presented in this example.

[0042] Combination Figures 1 to 9 As shown, during installation, the operator inserts the positioning block 9 into the positioning groove 4 and the insert block 5 into the slot 8 to quickly position the first end cover 2. During assembly, this prevents the first end cover 2 from shifting or becoming misaligned, thus improving assembly efficiency. After quickly positioning the first end cover 2, the operator inserts the first bolt 10 through the first end cover 2 and extends it into the valve body 1, and then inserts the second bolt 11 through the first end cover 2 and extends it into the valve body 1 to quickly fix the first end cover 2. This facilitates quick disassembly and assembly during use or assembly.

[0043] The staff then inserts the first guide block 17 into the first guide groove 14, and then inserts the third bolt 18 through the second end cover 3 and extends it into the valve body 1. This allows for the quick fixing of the second end cover 3. After long-term use, easily damaged parts such as the internal spring 23 can be quickly replaced, reducing the later maintenance costs.

[0044] The staff then inserts the second guide block 1905 into the second guide groove 1902, and then rotates the sleeve 1908 to make the external thread 1903 and the internal thread 1909 threaded together, which can realize the quick connection between the interface 1901 and the interface 1902. During use or assembly, it is easy to quickly disassemble and assemble. The multiple protrusions 1910 can increase the friction with the hand, prevent slippage during operation, and further improve the ease of installation and maintenance.

[0045] Before use, connect the external oil pipeline. During use, the medium enters the valve body 1 through the first connector assembly 19 and then contacts the valve ball 22, causing the valve ball 22 to push the abutment 21 towards the second end cover 3. At the same time, the spring 23 contracts. When the valve ball 22 passes the second connector assembly 20, the medium will be discharged through the second connector assembly 20, completing the circulation. The design of five springs 23 makes the preload force of the springs 23 on the abutment 21 more uniform, avoiding the abutment 21 from being misaligned and causing jamming or asynchronous opening and closing, ensuring smoother opening and closing of the valve ball 22. At the same time, the multiple springs 23 can disperse the vibration load caused by the impact of the medium, avoiding fatigue failure of a single spring 23 due to long-term use, and improving the stability during use. By designing the first bolt 10 and the second bolt 11 with opposite thread helical directions, when subjected to high-pressure fluid impact or equipment vibration, the loosening tendency of the first bolt 10 and the second bolt 11 mutually restrains and locks in the opposite direction, which can prevent the first end cover 2 from loosening and falling off, improving the stability during operation. The design of the first sealing ring 7, the second sealing ring 16, and the third sealing ring 1907 reduces the risk of media leakage, ensures long-term operation of the whole system, and improves the overall sealing performance. Furthermore, the titanium alloy, super duplex stainless steel, or nickel-based corrosion-resistant alloy all have excellent pressure resistance and seawater corrosion resistance, enabling the valve body 1, the first end cover 2, and the second end cover 3 to be used in deep-sea environments, thus extending their service life.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A one-way valve device with multiple pressure control functions, comprising a valve body (1), a first end cap (2), and a second end cap (3), characterized in that: The valve body (1) has a positioning groove (4) at one end near the first end cap (2), and a plug (5) is fixedly installed at one end of the valve body (1) near the first end cap (2). The outer wall of the plug (5) has a first mounting groove (6), and the inner wall of the first mounting groove (6) is provided with a first sealing ring (7). The first end cap (2) has a slot (8) at one end near the valve body (1), and a positioning block (9) is fixedly installed at one end of the first end cap (2) near the valve body (1). The first end cap (2) is threadedly connected to the valve body (1) with a first bolt (10) and a second bolt (11). The valve body (1) has a first guide groove (14) at one end near the second end cap (3). A first guide block (17) is fixedly installed at one end of the second end cap (3) near the valve body (1). A second mounting groove (15) is opened at one end of the second end cap (3) near the valve body (1). A second sealing ring (16) is provided on the inner wall of the second mounting groove (15). A third bolt (18) is threadedly connected to the outer wall of the second end cap (3). A first connector assembly (19) and a second connector assembly (20) are provided on the outer wall of the valve body (1). A stop block (21) is slidably connected to the inner wall of the valve body (1) near the second end cap (3). A valve ball (22) is provided at the end of the stop block (21) away from the second end cap (3). A spring (23) is provided between the second end cap (3) and the stop block (21).

2. The device with multiple pressure control check valves according to claim 1, characterized in that: The first connector assembly (19) includes an interface (1901), the inner wall of which is provided with a second guide groove (1902), and the outer wall of which is provided with an external thread (1903). A connector body (1904) is provided at the end of the interface (1901) away from the valve body (1), and a second guide block (1905) is fixedly installed at the end of the connector body (1904) near the interface (1901). 1) One end is provided with a third mounting groove (1906), the inner wall of the third mounting groove (1906) is provided with a third sealing ring (1907), the outer wall of the connector body (1904) near the interface (1901) is slidably connected with a sleeve (1908), the inner wall of the sleeve (1908) is provided with an internal thread (1909), and the outer wall of the sleeve (1908) is fixedly installed with a protrusion (1910). The first connector assembly (19) and the second connector assembly (20) have the same structure.

3. The device with multiple pressure control check valves according to claim 1, characterized in that: The positioning block (9) and the positioning groove (4) are connected by a plug-in joint, and the plug block (5) and the slot (8) are connected by a plug-in joint.

4. The device with multiple pressure control check valves according to claim 1, characterized in that: The first bolt (10) extends through the first end cap (2) into the interior of the valve body (1), and the second bolt (11) extends through the first end cap (2) into the interior of the valve body (1).

5. A one-way valve device with multiple pressure control functions according to claim 1, characterized in that: The first bolt (10) and the second bolt (11) have opposite thread helical directions.

6. A one-way valve device with multiple pressure control functions according to claim 1, characterized in that: The first guide block (17) and the first guide groove (14) are plugged in and installed together. The third bolt (18) extends through the second end cover (3) and into the interior of the valve body (1).

7. A device with multiple pressure control check valves according to claim 2, characterized in that: The second guide block (1905) and the second guide groove (1902) are plugged in and installed together, and the external thread (1903) and the internal thread (1909) are compatible.

8. A one-way valve device with multiple pressure control functions according to claim 2, characterized in that: The bumps (1910) are provided in multiple identical manner, and the multiple bumps (1910) are arranged in a ring.

9. A one-way valve device with multiple pressure control functions according to claim 1, characterized in that: The first sealing ring (7), the second sealing ring (16) and the third sealing ring (1907) are all provided in three identical units, and the three first sealing rings (7), second sealing rings (16) and third sealing rings (1907) are distributed at equal intervals.

10. A device with multiple pressure-controlled check valves according to claim 1, characterized in that: The springs (23) are provided in five identical configurations, and the five springs (23) are distributed in a five-point configuration.

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