High strength double eccentric swash plate type check valve

Abstract

The application discloses a high-strength double-eccentric swash plate type check valve and particularly relates to the robot technical field, which comprises a valve body, flanges, a valve cover, a double-eccentric valve clack and a valve seat, both left and right ends of the valve body are fixedly connected with the flanges, the upper end of the valve body is provided with the valve cover through bolts, the inside of the valve body is provided with the double-eccentric valve clack through a mounting assembly, the left end of the inside of the valve body is fixedly provided with the valve seat matched with the double-eccentric valve clack, the right side of the upper end of the valve body is fixedly connected with a second baffle, the double-eccentric valve clack is matched with the second baffle, the left end of the inside of the valve body is provided with a self-cleaning assembly; water flows in the valve body, thereby driving the driving blades to rotate, the rotating shaft is rotated, the first connecting rod is rotated, the scraper is rotated on the surface of the valve seat, thereby removing the water scale on the surface of the valve seat, the formation of the water scale on the surface of the valve seat is avoided, and the airtightness when the double-eccentric valve clack is closed on the valve seat is ensured.

Description

Technical Field

[0001] This invention relates to the field of check valve technology, and more specifically, to a high-strength double eccentric swashplate check valve. Background Technology

[0002] A check valve is a type of valve whose opening and closing element is a circular valve disc that relies on its own weight and the pressure of the medium to prevent backflow. It belongs to the category of automatic valves and is also known as a non-return valve, one-way valve, reflux valve, or isolation valve. The valve opens when the inlet pressure exceeds the sum of the valve disc's weight and its flow resistance. Conversely, the valve closes when the medium flows backward. Check valves are commonly used as foot valves in water pumping systems to prevent water backflow.

[0003] For example, CN206329772U discloses a swashplate check valve with an improved sealing structure, including a valve body, valve seat, double eccentric valve disc, valve cover, bolts, and handle. The double eccentric valve disc and valve seat are installed inside the valve body, with the valve seat mounted on the inner wall of the valve body. The double eccentric valve disc and valve seat have two sealing surfaces, and the structures of the two sealing surfaces are symmetrical. The sealing surface of the double eccentric valve disc is an arc surface, and the sealing surface of the valve seat is a plane. The handle is installed on the top of the valve cover, and the valve cover is installed on the top of the valve body. The valve cover and valve body are fixed by bolts. When the valve of this utility model is closed, the arc surface gradually achieves a line seal with the swashplate, effectively achieving a collision-free and noise-free effect, reducing processing costs. After testing, the valve opens and closes quickly and sensitively, has good sealing performance, and the first-time pressure test pass rate of the valve can reach more than 90%, meeting the expected design effect. Currently, after long-term use, scale will form on the contact surface between the valve seat and the double eccentric valve disc of the check valve. As a result, when the double eccentric valve disc and the valve seat are closed, there will be gaps, which will affect its sealing performance and lead to serious water leakage when it is closed. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-strength double eccentric swashplate check valve. The technical problem to be solved by the present invention is that after long-term use, scale will be generated on the contact surface between the valve seat and the double eccentric valve disc of the current check valve. As a result, when the double eccentric valve disc and the valve seat are closed, there will be gaps between them, which will affect the sealing performance and cause serious water leakage when closed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-strength double eccentric swashplate check valve, comprising a valve body, flanges, a valve cover, double eccentric valve discs, and a valve seat. Flanges are fixedly connected to both ends of the valve body. A valve cover is bolted to the upper end of the valve body. A double eccentric valve disc is mounted inside the valve body via an mounting assembly. A valve seat that cooperates with the double eccentric valve disc is fixedly mounted to the left end of the valve body. A second baffle is fixedly connected to the right side of the upper end of the valve body. The double eccentric valve discs are in contact with the second baffle. A self-cleaning assembly is provided at the left end of the valve body. A limiting mechanism is provided inside the valve body. A lifting ring is fixedly mounted in the middle of the valve cover. The self-cleaning component includes a rotating shaft. The rotating shaft is rotatably connected to the middle of the left end of the valve body. A first connecting rod is installed at the left end of the rotating shaft. A scraper is fixedly connected to the lower end of the first connecting rod. The scraper is in contact with the inner wall of the valve seat. A square rod is fixedly connected to the left end of the rotating shaft. An installation block is installed at the left end of the square rod. Multiple sets of drive blades are fixedly connected to the outer side of the installation block. A first installation ring is fixedly connected to the outer end of the drive blades. The first installation ring is rotatably connected to the inner wall of the valve body.

[0006] As a further aspect of the present invention: a mounting ball head is rotatably connected to the right end of the rotating shaft, a second connecting rod is rotatably connected to the middle of the double eccentric valve disc, a ball head seat is fixedly connected to the lower end of the second connecting rod, the mounting ball head is engaged in the ball head seat, the square rod is inserted into the middle of the mounting block, the upper end of the first connecting rod is rotatably connected to the left end of the rotating shaft, a guide rod is inserted into the middle of the first connecting rod, a first sliding groove that cooperates with the guide rod is opened in the middle of the first connecting rod, a second mounting ring is fixedly connected to the outer end of the guide rod, and the second mounting ring is rotatably connected to the inner wall of the valve body.

[0007] As a further aspect of the present invention: a limiting slider is fixedly connected to the middle of the guide rod, and a second sliding groove is provided in the middle of the first connecting rod to cooperate with the limiting slider, and the limiting slider is engaged in the second sliding groove.

[0008] As a further aspect of the present invention: a first baffle is fixedly connected to the left end of the square rod. The first baffle has an arc spherical design, and the center of the arc spherical surface of the first baffle is located on the left side of the first baffle.

[0009] As a further aspect of the present invention: multiple sets of diversion plates are fixedly connected to the inner side of the first baffle, and the diversion plates are designed in an arc shape.

[0010] As a further aspect of the present invention: the limiting mechanism includes a limiting slot, and multiple sets of limiting slots are provided on the outer side of the square rod. An annular groove communicating with the limiting slots is provided on the left end of the square rod. A third mounting ring is sleeved on the left end of the square rod. A mounting plate is fixedly connected to the outer side of the third mounting ring. The outer end of the mounting plate is fixedly connected to the inner wall of the valve body. A limiting rod corresponding to each of the multiple sets of limiting slots is fixedly connected to the inner side of the third mounting ring. The limiting rod is engaged in the annular groove.

[0011] As a further aspect of the present invention: the square rod at the junction of the limiting slot and the annular groove is provided with a guide groove, and the left end of the square rod is located between two adjacent sets of limiting slots in a triangular design.

[0012] As a further embodiment of the present invention: the limiting mechanism further includes a mounting post, a mounting post is fixedly connected to the right side of the upper end of the valve cover, a threaded post is threadedly connected to the middle part of the mounting post, a threaded hole that mates with the threaded post is opened in the middle part of the mounting post, a knob is fixedly connected to the upper end of the threaded post, and a through hole that mates with the threaded post is opened in the middle part of the second baffle.

[0013] As a further embodiment of the present invention: the mounting assembly includes a shaft pin, the shaft pin is inserted into the middle of the double eccentric valve disc, mounting seats are fixedly installed at both the front and rear ends of the valve body, the two ends of the shaft pin are respectively inserted into the front and rear sets of mounting seats, the outer end of the mounting seat is fitted with an end cap by bolts, and the front and rear ends of the shaft pin are fitted with a bushing and a sealing block, the bushing and the sealing block are both located in the mounting seat.

[0014] The beneficial effects of this invention are as follows: 1. This invention incorporates a self-cleaning component. Water flows within the valve body, causing the drive blades to rotate, which in turn rotates the square rod, causing the shaft to rotate. This, in turn, rotates the first connecting rod, which in turn rotates the scraper on the surface of the valve seat, thus removing scale from the valve seat surface and preventing scale formation. This ensures a tight seal when the double eccentric valve discs are closed on the valve seat.

[0015] 2. By setting a limiting mechanism, the present invention ensures that the limiting rod is located in the annular groove only when the double eccentric valve is fully open, allowing the drive blade to rotate. When the double eccentric valve is not fully open, the limiting rod is engaged in the limiting groove, preventing the square rod from rotating. This avoids the first connecting rod from rotating and causing the scraper to move closer to the valve seat, thus preventing it from colliding with the double eccentric valve. Furthermore, when the double eccentric valve is not fully open, the water flow is smaller, which also prevents the water flow from causing the drive blade to rotate and reducing the water flow velocity. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a frontal cross-sectional view of the structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a partial schematic diagram of the right-side cross-sectional view of the structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the double eccentric valve disc, valve seat, self-cleaning assembly, and limiting mechanism of the present invention; Figure 6 This is a three-dimensional structural diagram of the rotating shaft, square rod, mounting ball head, first baffle, diversion plate, limiting groove, annular groove and guide groove of the present invention; Figure 7 This is a three-dimensional structural diagram of the mounting block, drive blade, and first mounting ring of the present invention; Figure 8 This is a three-dimensional structural diagram of the guide rod, the second mounting ring, and the limiting slider of the present invention; Figure 9 This is a three-dimensional structural diagram of the third mounting ring, mounting plate, and limiting rod of the present invention.

[0017] In the diagram: 1. Valve body; 2. Flange; 3. Valve cover; 4. Double eccentric valve disc; 5. Valve seat; 611. Rotating shaft; 612. First connecting rod; 613. Scraper; 614. Square rod; 615. Mounting block; 616. Drive blade; 617. First mounting ring; 618. Mounting ball head; 619. Second connecting rod; 620. Ball head seat; 621. Guide rod; 622. First slide groove; 623. Second mounting ring; 624. Limiting slider; 62 5. Second slide groove; 626. First baffle; 627. Drain plate; 711. Limiting groove; 712. Annular groove; 713. Third mounting ring; 714. Mounting plate; 715. Limiting rod; 716. Guide groove; 717. Mounting post; 718. Threaded post; 719. Knob; 720. Through hole; 811. Shaft pin; 812. Mounting seat; 813. End cap; 814. Bushing; 815. Sealing block; 9. Second baffle; 10. Lifting ring. Detailed Implementation

[0018] 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.

[0019] like Figure 1-8As shown, this invention provides a high-strength double eccentric swashplate check valve, comprising a valve body 1, a flange 2, a valve cover 3, a double eccentric valve disc 4, and a valve seat 5. The left and right ends of the valve body 1 are fixedly connected to the flange 2. The valve cover 3 is bolted to the upper end of the valve body 1. The double eccentric valve disc 4 is mounted inside the valve body 1 via a mounting assembly. The mounting assembly includes a pin 811, with the pin 811 inserted into the middle of the double eccentric valve disc 4. Mounting seats 812 are fixedly mounted at both the front and rear ends of the valve body 1, with the two ends of the pin 811 respectively inserted into the front and rear mounting seats. Inside the seat 812, the outer end of the mounting seat 812 is bolted with an end cover 813. Both the front and rear ends of the shaft pin 811 are fitted with a bushing 814 and a sealing block 815. The bushing 814 and the sealing block 815 are both located inside the mounting seat 812. The left end of the valve body 1 is fixedly installed with a valve seat 5 that cooperates with the double eccentric valve disc 4. The right side of the upper end of the valve body 1 is fixedly connected with a second baffle 9. The double eccentric valve disc 4 and the second baffle 9 are in contact with each other. The left end of the valve body 1 is provided with a self-cleaning component. The middle part of the valve cover 3 is fixedly installed with a lifting ring 10. The self-cleaning assembly includes a rotating shaft 611. The rotating shaft 611 is rotatably connected to the middle of the left end of the valve body 1. A first connecting rod 612 is mounted on the left end of the rotating shaft 611. A scraper 613 is fixedly connected to the lower end of the first connecting rod 612. The scraper 613 is in contact with the inner wall of the valve seat 5. A square rod 614 is fixedly connected to the left end of the rotating shaft 611. A mounting block 615 is mounted on the left end of the square rod 614. Multiple sets of drive blades 616 are fixedly connected to the outer side of the mounting block 615. A first mounting ring 617 is fixedly connected to the outer end of the drive blades 616. The first mounting ring 617 is rotatably connected to the inner wall of the valve body 1. A mounting ball head 618 is rotatably connected to the right end of the rotating shaft 611. A second connecting rod 619 is rotatably connected to the middle of the double eccentric valve disc 4. A ball head seat 620 is fixedly connected to the lower end of rod 619. A ball head 618 is engaged within the ball head seat 620. A square rod 614 is inserted into the middle of mounting block 615. The upper end of the first connecting rod 612 is rotatably connected to the left end of rotating shaft 611. A guide rod 621 is inserted into the middle of the first connecting rod 612. A first sliding groove 622, which mates with the guide rod 621, is opened in the middle of the first connecting rod 612. A second mounting ring 623 is fixedly connected to the outer end of the guide rod 621. The second mounting ring 623 is rotatably connected to the inner wall of valve body 1. When water flows through valve body 1, the double eccentric valve disc 4 opens, and the water flow drives the drive blade 616 to rotate, thereby driving the square rod 614 to rotate, causing rotating shaft 611 to rotate, and thus driving... The first connecting rod 612 rotates, thereby causing the scraper 613 to rotate on the surface of the valve seat 5, thus scraping off the scale on the surface of the valve seat 5. When there is no water flow in the valve body 1, the double eccentric valve disc 4 falls due to gravity. During the process of the double eccentric valve disc 4 rotating and fitting with the valve seat 5, the second connecting rod 619 pushes the rotating shaft 611 to move to the left, the first connecting rod 612 moves to the left, and rotates counterclockwise along the guide rod 621, thereby causing the scraper 613 to disengage from the valve seat 5. A limiting slider 624 is fixedly connected to the middle of the guide rod 621. The middle of the first connecting rod 612 is provided with a second sliding groove 625 that cooperates with the limiting slider 624. The limiting slider 624 is engaged in the second sliding groove 625, and the limiting slider 624 moves in a certain direction. The sliding within the second slide groove 625 effectively ensures the stability of the second slide groove 625 during rotation. The left end of the square rod 614 is fixedly connected to the first baffle 626, which has an arc spherical design. The center of the arc spherical surface of the first baffle 626 is located on the left side of the first baffle 626. When the water flows through, the impact of the water flow on the first baffle 626 can push the rotating shaft 611 to move to the right, preventing the double eccentric valve 4 from failing to open effectively due to a small water flow and excessive weight, thus reducing the water flow speed. Multiple sets of diversion plates 627 are fixedly connected to the inner side of the first baffle 626. The diversion plates 627 have an arc-shaped design. When the water flows through the diversion plates 627, the water flow is spiraled, which can further effectively push the first baffle 626 to rotate.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 9 As shown, a limiting mechanism is provided inside the valve body 1. The limiting mechanism includes a limiting slot 711. Multiple sets of limiting slots 711 are opened on the outer side of the square rod 614. An annular groove 712 communicating with the limiting slots 711 is opened on the left end of the square rod 614. A third mounting ring 713 is sleeved on the left end of the square rod 614. A mounting plate 714 is fixedly connected to the outer side of the third mounting ring 713. The outer end of the mounting plate 714 is fixedly connected to the inner wall of the valve body 1. A limiting rod 715 corresponding to each of the multiple sets of limiting slots 711 is fixedly connected to the inner side of the third mounting ring 713. The limiting rod 715 is engaged in the annular groove 712. Only when the double eccentric valve disc 4 is fully open, the limiting rod 715 is located in the annular groove 712, allowing the drive blade 616 to rotate. When the double eccentric valve disc 4 is not fully open, the limiting rod 715 is engaged in the limiting groove 711, preventing the square rod 614 from rotating. This avoids the first connecting rod 612 rotating and driving the scraper 613 towards the valve seat 5, thus preventing it from colliding with the double eccentric valve disc 4. Furthermore, when the double eccentric valve disc 4 is not fully open, the water flow is smaller, further preventing the water flow from driving the drive blade 616 and reducing the water flow velocity. The limiting groove 711... A guide groove 716 is provided on the square rod 614 at the junction with the annular groove 712. The left end of the square rod 614 is triangularly designed between two adjacent sets of limiting slots 711. When the double eccentric valve disc 4 falls, the limiting rod 715 can quickly enter the limiting slot 711 through the guide groove 716, preventing the limiting rod 715 from getting stuck in the annular groove 712, which would prevent the double eccentric valve disc 4 from falling. The limiting mechanism also includes a mounting post 717. The mounting post 717 is fixedly connected to the right side of the upper end of the valve cover 3. The middle part of the mounting post 717 is connected to a threaded post 718 by a thread. The middle part of the mounting post 717 is provided with a guide groove 716. The threaded post 718 has a threaded hole that mates with the threaded post 718. A knob 719 is fixedly connected to the upper end of the threaded post 718. A through hole 720 that mates with the threaded post 718 is opened in the middle of the second baffle 9. By rotating the knob 719, the threaded post 718 is rotated, causing the threaded post 718 to move downward. When the lower end of the threaded post 718 is lower than the lower surface of the second baffle 9, the double eccentric valve disc 4 cannot be fully opened. As a result, the limit rod 715 is located in the limit groove 711 and does not enter the annular groove 712. Therefore, the drive blade 616 will not rotate, and the flow rate of the water will not be reduced.

[0021] The working principle of this invention is as follows: When water flows through the valve body 1, the double eccentric valve disc 4 opens, and the water flow drives the drive blade 616 to rotate, which in turn drives the square rod 614 to rotate, causing the rotating shaft 611 to rotate, which in turn drives the first connecting rod 612 to rotate, which in turn drives the scraper 613 to rotate on the surface of the valve seat 5, thereby scraping off the scale on the surface of the valve seat 5. When there is no water flow in the valve body 1, the double eccentric valve disc 4 falls due to gravity. During the process of the double eccentric valve disc 4 rotating and fitting with the valve seat 5, the second connecting rod 619 pushes the rotating shaft 611 to move to the left, the first connecting rod 612 moves to the left, and rotates counterclockwise along the guide rod 621, thereby causing the scraper 613 to disengage from the valve seat 5. At the same time, the limiting rod 715 enters the limiting slot 711 through the third mounting ring 713. When the limiting rod 715 enters the limiting slot 711, the square rod 614 cannot rotate, and thus the drive blade 616 will not rotate. When water flows through again, the water flow pushes the double eccentric valve disc 4 to open from the valve seat 5. The second connecting rod 619 pulls the rotating shaft 611 to the right, causing the first connecting rod 612 to move to the right. Through the guide rod 621, the first connecting rod 612 rotates clockwise. The rotating shaft 611 moves to the right, causing the square rod 614 to move to the right, causing the limiting rod 715 to move to the left along the limiting groove 711. When the double eccentric valve disc 4 is fully open, the scraper 613 is in contact with the surface of the valve seat 5, and the limiting rod 715 enters the annular groove 712. At this time, the drive blade 616 is driven to rotate by the water flow, which in turn drives the square rod 614 to rotate, so that the scraper 613 scrapes and cleans the scale on the surface of the valve seat 5.

[0022] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-strength double eccentric swashplate check valve, comprising a valve body (1), a flange (2), a valve cover (3), a double eccentric valve disc (4), and a valve seat (5), characterized in that: Flanges (2) are fixedly connected to both the left and right ends of the valve body (1). A valve cover (3) is installed on the upper end of the valve body (1) by bolts. A double eccentric valve disc (4) is installed inside the valve body (1) by an installation assembly. A valve seat (5) that cooperates with the double eccentric valve disc (4) is fixedly installed on the left end inside the valve body (1). A second baffle (9) is fixedly connected to the right side of the upper end of the valve body (1). The double eccentric valve disc (4) and the second baffle (9) fit together. A self-cleaning assembly is provided on the left end inside the valve body (1). A limiting mechanism is provided inside the valve body (1). A lifting ring (10) is fixedly installed in the middle of the valve cover (3). The self-cleaning component includes a rotating shaft (611). The rotating shaft (611) is rotatably connected to the middle of the left end of the valve body (1). A first connecting rod (612) is installed on the left end of the rotating shaft (611). A scraper (613) is fixedly connected to the lower end of the first connecting rod (612). The scraper (613) is in contact with the inner wall of the valve seat (5). A square rod (614) is fixedly connected to the left end of the rotating shaft (611). An installation block (615) is installed on the left end of the square rod (614). Multiple sets of drive blades (616) are fixedly connected to the outer side of the installation block (615). A first installation ring (617) is fixedly connected to the outer end of the drive blades (616). The first installation ring (617) is rotatably connected to the inner wall of the valve body (1). The right end of the rotating shaft (611) is rotatably connected to a mounting ball head (618), the middle part of the double eccentric valve disc (4) is rotatably connected to a second connecting rod (619), the lower end of the second connecting rod (619) is fixedly connected to a ball head seat (620), the mounting ball head (618) is engaged in the ball head seat (620), the square rod (614) is inserted in the middle of the mounting block (615), the upper end of the first connecting rod (612) is rotatably connected to the left end of the rotating shaft (611), a guide rod (621) is inserted in the middle of the first connecting rod (612), a first sliding groove (622) is opened in the middle of the first connecting rod (612) to cooperate with the guide rod (621), the outer end of the guide rod (621) is fixedly connected to a second mounting ring (623), and the second mounting ring (623) is rotatably connected to the inner wall of the valve body (1). The limiting mechanism includes a limiting slot (711). Multiple sets of limiting slots (711) are provided on the outer side of the square rod (614). An annular groove (712) communicating with the limiting slots (711) is provided on the left end of the square rod (614). A third mounting ring (713) is sleeved on the left end of the square rod (614). A mounting plate (714) is fixedly connected to the outer side of the third mounting ring (713). The outer end of the mounting plate (714) is fixedly connected to the inner wall of the valve body (1). A limiting rod (715) corresponding to each of the multiple sets of limiting slots (711) is fixedly connected to the inner side of the third mounting ring (713). The limiting rod (715) is engaged in the annular groove (712). The square rod (614) at the junction of the limiting slot (711) and the annular groove (712) is provided with a guide groove (716), and the left end of the square rod (614) is located between two adjacent sets of limiting slots (711) in a triangular design. The limiting mechanism also includes a mounting post (717), which is fixedly connected to the right side of the upper end of the valve cover (3). A threaded post (718) is threadedly connected to the middle of the mounting post (717). A threaded hole that cooperates with the threaded post (718) is opened in the middle of the mounting post (717). A knob (719) is fixedly connected to the upper end of the threaded post (718). A through hole (720) that cooperates with the threaded post (718) is opened in the middle of the second baffle (9).

2. The high-strength double eccentric swashplate check valve according to claim 1, characterized in that: The guide rod (621) is fixedly connected to the middle of the limiting slider (624), and the middle of the first connecting rod (612) is provided with a second slide groove (625) that cooperates with the limiting slider (624). The limiting slider (624) is engaged in the second slide groove (625).

3. A high-strength double eccentric swashplate check valve according to claim 1, characterized in that: The left end of the square rod (614) is fixedly connected to a first baffle (626), which is designed with an arc spherical surface. The center of the arc spherical surface of the first baffle (626) is located on the left side of the first baffle (626).

4. A high-strength double eccentric swashplate check valve according to claim 3, characterized in that: Multiple sets of diversion plates (627) are fixedly connected to the inner side of the first baffle (626), and the diversion plates (627) are designed in an arc shape.

5. A high-strength double eccentric swashplate check valve according to claim 1, characterized in that: The mounting assembly includes a pin (811), the pin (811) is inserted in the middle of the double eccentric valve disc (4), and mounting seats (812) are fixedly installed at both ends of the valve body (1). The two ends of the pin (811) are respectively inserted into the two sets of mounting seats (812). The outer end of the mounting seat (812) is fitted with an end cap (813) by bolts. Both ends of the pin (811) are fitted with a bushing (814) and a sealing block (815). The bushing (814) and the sealing block (815) are both located in the mounting seat (812).

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