Marine valve actuator

Abstract

The invention relates to the technical field of valves, in particular to a marine valve actuator which comprises an actuator body, a mounting platform deck used for mounting a valve is arranged on the actuator body, connecting convex frames are symmetrically and fixedly arranged on the two sides of the mounting platform deck, and mounting guide holes are further symmetrically formed in the two sides of the mounting platform deck; a mounting carrying table is arranged on the actuator body, a valve supporting mechanism is arranged on the mounting carrying table, the valve supporting mechanism is used for supporting a valve when the valve is mounted, a movable carrying table is arranged on the actuator body, and when the valve is fixedly connected with the actuator, the valve is in close contact with the movable carrying table; and then the valve is pushed to drive the movable bearing table to move towards the mounting bearing table, the fixed connection between the valve and the actuator body is automatically realized along with the movement of the movable bearing table, the operation is very simple, convenient and rapid, and the working efficiency of the fixed connection between the valve and the actuator is improved to a great extent.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to a marine valve actuator. Background Art

[0002] Marine valve actuator is an important automation equipment, which is mainly used to control the opening and closing of valves on ships to accurately adjust the flow of fluid media.

[0003] When existing marine valve actuators are fixedly connected to valves, they are all fixed by bolts. Although this fixing method is simple, it is cumbersome to operate. Tools are needed to tighten multiple connecting bolts one by one, which is time-consuming. As a result, the installation and removal operations between the valve and the actuator are not convenient enough, and it is not convenient for the staff to replace or repair the two later. Moreover, since the ship is above the water, the valve actuator is in a relatively humid environment for a long time, which will have a greater adverse effect on the connecting bolts and make them more prone to rust. When the valve or actuator needs to be disassembled, it will cause greater obstacles to the screwing of the bolts, which invisibly increases the installation and removal work intensity and installation and removal operation burden of the staff. Summary of the invention

[0004] The object of the present invention is to provide a marine valve actuator to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A marine valve actuator comprises an actuator body, on which a mounting platform for mounting a valve is arranged, connecting protrusions are symmetrically fixedly arranged on both sides of the mounting platform, and mounting guide holes are symmetrically opened on both sides of the mounting platform; The installation platform is provided with a valve support mechanism, which is used to support the valve when installing the valve, and the upper and lower ends of the valve support mechanism are symmetrically provided with a first valve fixing component; The first valve fixing assembly is used for performing the first layer fixing of the valve; The valve second fixing assembly is also provided on both sides of the valve support mechanism, and the valve second fixing assembly is used for the second layer fixing of the valve. The valve second fixing assembly is also connected to the valve auxiliary fixing mechanism, and the valve is strengthened and fixed by the valve auxiliary fixing mechanism; The first valve fixing assembly and the second valve fixing assembly are provided with locking mechanisms, and the locking mechanisms are used to lock the supporting mechanism when the valve is installed.

[0006] Preferably, the supporting mechanism is a movable bearing platform, and the movable bearing platform moves toward the installation platform to support and fix the valve when the valve is installed; The movable bearing platform is symmetrically and fixedly provided with installation guide rods on both sides. The installation guide rods are inserted into the installation guide holes. Matching springs are sleeved on the installation guide rods, and matching plates are fixedly provided on the installation guide rods.

[0007] Preferably, first matching cavities are respectively provided at the four corners of the movable supporting platform, a connecting channel is provided at the first matching cavity, and a second matching cavity is provided on the movable supporting platform beside the first matching cavity; An adsorption channel is provided at the second matching cavity, a built-in column is fixedly arranged in the first matching cavity, a guide plug hole is provided on the built-in column, and a through hole is also provided in the first matching cavity, and the through hole is connected with the second matching cavity.

[0008] Preferably, plug-in connecting holes are symmetrically provided at the upper and lower ends of the movable supporting platform, and built-in installation cavities are symmetrically provided on both sides of the movable supporting platform, an inner supporting block is fixedly arranged in the built-in installation cavity, a matching plug hole is provided on the inner supporting block, and movable channels are symmetrically provided in the built-in installation cavity.

[0009] Preferably, the first fixing component of the valve is a driving strip, and the driving strip is two symmetrically mounted at the upper and lower ends of the movable bearing platform, and a mounting channel is opened on the driving strip; A first installation limiting strip is fixedly arranged on the driving strip, a first installation limiting block is fixedly arranged on the first installation limiting strip, and a matching groove is provided on the first installation limiting strip, and a limiting plug hole is provided at the bottom of the matching groove.

[0010] Preferably, plug-in connecting rods are symmetrically fixedly arranged at both ends of the driving strips, the plug-in connecting rods are inserted into the plug-in connecting holes, and connecting strips are fixedly arranged on the plug-in connecting rods; The connecting strip part is in the built-in installation cavity, a movable cavity hole is opened on the connecting strip, a driving plug rod is fixedly provided on the connecting strip, and a movable rod is hinged on the connecting strip, and the movable rod passes through the movable channel to be hinged with the connecting protrusion.

[0011] Preferably, the second valve fixing component is a second installation limiting strip, and a second installation limiting block is fixedly provided on the second installation limiting strip; The upper and lower ends of the second installation restriction strip are symmetrically fixed with matching connecting rods, and the second installation restriction strip is fixedly provided with a limit plug rod, and the limit plug rod is inserted into the matching plug hole; The upper and lower ends of the second installation restriction strip are symmetrically and fixedly provided with connecting carrier plates, the connecting carrier plates are provided with driving grooves, and the driving rods are inserted into the driving grooves.

[0012] Preferably, the valve auxiliary fixing mechanism includes a support plate frame, a movable cavity block and a movable cavity plate, the support plate frame is fixedly arranged on the connecting carrier plate, a plug-in plate is fixedly arranged on the support plate frame, the plug-in plate is plugged into the connecting channel, and a bearing rod is fixedly arranged on the plug-in plate, the bearing rod is plugged into the through hole, and a movable cavity block is fixedly arranged on the bearing rod, and the movable cavity block is plugged into the second matching cavity.

[0013] Preferably, a mating protrusion is fixedly provided on the plug-in support plate, a connecting hinge is hinged on the mating protrusion, a movable cavity plate is hinged on the other end of the connecting hinge, the movable cavity plate is inserted in the first mating cavity, and a guide carrier rod is fixedly provided on the movable cavity plate, and the guide carrier rod is inserted in the guide socket.

[0014] Preferably, the locking mechanism comprises an engaging movable block and an active clamping plate, the engaging movable block is fixedly provided with a supporting connecting rod, the supporting connecting rod is inserted in the movable cavity hole, one end of the engaging movable block is fixedly provided with a matching bearing plate, the matching bearing plate is fixedly provided with a connecting block, the connecting block is provided with an engaging socket, the engaging socket is inserted with a matching engaging rod, and the engaging movable block is also fixedly provided with a bearing plate frame, the bearing plate frame is partially inserted in the installation channel, and the bearing plate frame is fixedly provided with an inclined locking block; The movable card plate is installed in the installation channel, a matching plug rod is fixedly provided on the movable card plate, the matching plug rod is inserted in the limiting plug hole, an elastic connecting piece is fixedly provided on the movable card plate, and locking protrusions are symmetrically fixedly provided at both ends of the movable card plate.

[0015] Compared with the prior art, the invention has the following advantages: 1. A movable bearing platform is arranged on the actuator body. When the valve and the actuator are fixedly connected, the valve is brought into close contact with the movable bearing platform, and then the valve is pushed to drive the movable bearing platform to move in the direction of the mounting platform. As the movable bearing platform moves, the fixed connection between the valve and the actuator body is automatically realized. The operation is very simple, convenient and fast, which greatly improves the working efficiency of the fixed connection between the valve and the actuator. When the two are separated, the valve can be unlocked by pulling the two movable clamps at the same time.

[0016] 2. When the movable bearing platform moves, the movable rod will drive the two driving strips to move toward the movable bearing platform. As the driving strip moves, it will drive the first installation restriction strip to restrict the installation of the valve from the upper and lower sides, and at the same time, the first installation restriction block is pressed on the end face of the valve, completing the first layer of multi-point fixation of the valve. At the same time, as the driving strip moves, it will drive the two second installation restriction strips to move toward the movable bearing platform, and then the second installation restriction strips will restrict the installation of the valve from both sides, and the second installation restriction block is also pressed on the end face of the valve, completing the second layer of multi-point fixation of the valve.

[0017] 3. In addition, when the second installation restriction strip moves, it will also drive the movable cavity block and the movable cavity plate to move, thereby forming a negative pressure in the second matching cavity and the first matching cavity, which plays an auxiliary adsorption and fixation role for the valve, fully ensuring the firmness of the valve installation, and the second installation restriction strip can also drive the connecting movable block to move, thereby allowing the inclined locking block to pass over the locking card protrusion to realize automatic locking of the movable bearing platform, ensuring its stability during the working process, and thus also ensuring the stable installation of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the actuator assembly from a first perspective.

[0019] Figure 2 A second-view schematic diagram of the actuator assembly.

[0020] Figure 3 It is a structural diagram of the actuator body.

[0021] Figure 4 A first-person perspective diagram of the movable carrier assembly.

[0022] Figure 5 for Figure 4 A magnified schematic diagram of center A.

[0023] Figure 6 for Figure 4 A magnified schematic diagram of point B in the middle.

[0024] Figure 7 A schematic diagram from a second perspective of the movable carrier assembly.

[0025] Figure 8 This is a schematic diagram of the structure of the movable supporting platform from the first perspective.

[0026] Fig. 9 It is a schematic diagram of the structure of the movable supporting platform from a second perspective.

[0027] Fig.10 It is a schematic structural diagram of the second matching cavity.

[0028] Fig.11 Schematic diagram of the structure of the driving slats.

[0029] Fig.12 It is a structural schematic diagram of the second installation restriction strip.

[0030] In the figure: 1. actuator body; 11. mounting platform; 12. connecting convex frame; 13. mounting guide hole; 2. movable bearing platform; 20. mounting guide rod; 201. matching spring; 202. matching plate; 21. first matching cavity; 22. connecting channel; 23. second matching cavity; 24. adsorption channel; 25. built-in column; 251. guide socket; 26. through hole; 27. plug-in connecting hole; 28. built-in mounting cavity; 281. inner bearing block; 282. matching socket; 283. movable channel; 3. driving strip; 31. mounting channel; 32. first mounting limit strip; 33. first mounting limit block; 34. matching groove; 35. limit socket; 36. plug-in connecting rod; 37. connecting strip ; 371, movable cavity hole; 372, driving plug rod; 38, movable rod; 4, second installation limit strip; 41, second installation limit block; 42, matching connecting rod; 43, limiting plug rod; 44, connecting carrier plate; 45, driving groove; 46, support plate frame; 47, plug-in carrier plate; 471, bearing plug rod; 472, movable cavity block; 48, matching convex frame; 481, connecting hinge rod; 49, movable cavity plate; 491, guiding carrier rod; 5, connecting movable block; 51, supporting connecting rod; 52, matching carrier plate; 53, connecting block; 54, connecting socket; 55, carrier plate frame; 56, inclined locking block; 6, movable card plate; 61, matching plug rod; 62, elastic connecting piece; 63, locking card convex block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a technical solution: A marine valve actuator comprises an actuator body 1, on which a mounting platform 11 for mounting a valve is arranged, on both sides of the mounting platform 11 connecting bosses 12 are symmetrically fixedly arranged, and on both sides of the mounting platform 11 mounting guide holes 13 are symmetrically opened, a valve support mechanism is arranged on the mounting platform 11, the valve support mechanism is used to support the valve when the valve is installed, and the upper and lower ends of the valve support mechanism are symmetrically arranged with a first valve fixing component, the first valve fixing component is used for the first layer of fixing of the valve, and the two sides of the valve support mechanism are also provided with a second valve fixing component, the second valve fixing component is used for the second layer of fixing of the valve, the second valve fixing component is also connected to a valve auxiliary fixing mechanism, the valve is reinforced by the valve auxiliary fixing mechanism, the first valve fixing component and the second valve fixing component are provided with a locking mechanism, the locking mechanism is used to lock the supporting mechanism when the valve is installed, such as Figure 1 and Figure 2 shown.

[0033] The supporting mechanism is a movable bearing platform 2, which moves toward the mounting platform 11 to support and fix the valve when the valve is installed. The movable carrier 2 is symmetrically fixed with mounting guide rods 20 on both sides. The mounting guide rods 20 are inserted into the mounting guide holes 13. A matching spring 201 is sleeved on the mounting guide rods 20. A matching plate 202 is fixedly arranged on the mounting guide rods 20. The two ends of the matching spring 201 are respectively fixed on the matching plate 202 and the mounting carrier 11. Figure 2 shown.

[0034] The four corners of the movable supporting platform 2 are respectively provided with first matching cavities 21, the first matching cavities 21 are provided with connecting channels 22, and the movable supporting platform 2 beside the first matching cavities 21 is provided with second matching cavities 23, the second matching cavities 23 are provided with adsorption channels 24, the first matching cavities 21 are fixedly provided with built-in columns 25, the built-in columns 25 are provided with guide plug holes 251, and the first matching cavities 21 are also provided with through holes 26, the through holes 26 are connected with the second matching cavities 23, as shown in FIG. Fig. 9 shown.

[0035] The upper and lower ends of the movable supporting platform 2 are symmetrically provided with plug-in connecting holes 27, and the two sides of the movable supporting platform 2 are symmetrically provided with built-in installation cavities 28, in which an inner bearing block 281 is fixedly arranged, and a matching plug hole 282 is provided on the inner bearing block 281, and a movable channel 283 is symmetrically provided in the built-in installation cavity 28. Figure 8 shown.

[0036] The first fixed component of the valve is a driving strip 3, which is symmetrically mounted at the upper and lower ends of the movable bearing platform 2. The driving strip 3 is provided with a mounting channel 31; The driving strip 3 is fixedly provided with a first installation limiting strip 32, and the first installation limiting block 33 is fixedly provided on the first installation limiting strip 32. A matching groove 34 is provided on the first installation limiting strip 32, and a limited position insertion hole 35 is provided at the bottom of the matching groove 34. Fig.11 shown.

[0037] The two ends of the driving slat 3 are symmetrically fixed with plug-in connecting rods 36, the plug-in connecting rods 36 are plugged into the plug-in connecting holes 27, and a connecting slat 37 is fixedly provided on the plug-in connecting rod 36, and the connecting slat 37 is partially located in the built-in mounting cavity 28. A movable cavity hole 371 is opened on the connecting slat 37, and a driving plug rod 372 is fixedly provided on the connecting slat 37, and a movable rod 38 is hinged on the connecting slat 37, and the movable rod 38 passes through the movable channel 283 to be hinged with the connecting protrusion 12.

[0038] like Fig.12 As shown, the second fixing component of the valve is a second installation limiting strip 4, on which a second installation limiting block 41 is fixedly arranged, and matching connecting rods 42 are symmetrically fixedly arranged at the upper and lower ends of the second installation limiting strip 4, and a limiting plug rod 43 is fixedly arranged on the second installation limiting strip 4, and the limiting plug rod 43 is inserted into the matching plug hole 282; The second installation restriction strip 4 is symmetrically fixed with connecting plates 44 at both ends. The connecting plates 44 are provided with driving grooves 45 . A driving rod 372 is inserted into the driving grooves 45 , and the inner wall of the driving grooves 45 is in contact with the driving rod 372 .

[0039] The valve auxiliary fixing mechanism includes a support plate frame 46, a movable cavity block 472 and a movable cavity plate 49. The support plate frame 46 is fixedly arranged on the connecting carrier plate 44. A plug-in support plate 47 is fixedly arranged on the support plate frame 46. The plug-in support plate 47 is plugged into the connecting channel 22, and a bearing rod 471 is fixedly arranged on the plug-in support plate 47. The bearing rod 471 is plugged into the through hole 26, and a movable cavity block 472 is fixedly arranged on the bearing rod 471. The movable cavity block 472 is plugged into the second matching cavity 23, and the movable cavity block 472 blocks the adsorption channel 24.

[0040] A mating protrusion 48 is also fixedly provided on the plug-in support plate 47, and a connecting hinge 481 is hinged on the mating protrusion 48. The other end of the connecting hinge 481 is hinged to a movable cavity plate 49, and the movable cavity plate 49 is inserted in the first mating cavity 21. A guide carrier rod 491 is fixedly provided on the movable cavity plate 49, and the guide carrier rod 491 is inserted in the guide socket 251.

[0041] The locking mechanism includes a connecting movable block 5 and a movable card plate 6. A supporting connecting rod 51 is fixedly provided on the connecting movable block 5. The supporting connecting rod 51 is inserted in the movable cavity hole 371. A matching bearing plate 52 is fixedly provided at one end of the connecting movable block 5. A connecting block 53 is fixedly provided on the matching bearing plate 52. A connecting socket 54 is provided on the connecting block 53. A matching connecting rod 42 is inserted in the connecting socket 54. A bearing plate frame 55 is also fixedly provided on the connecting movable block 5. The bearing plate frame 55 is partially inserted in the installation channel 31. A bevel locking block 56 is fixedly provided on the bearing plate frame 55. The surface of the bevel locking block 56 is smooth and free of burrs. Figure 5 and Figure 6 shown.

[0042] The movable card plate 6 is installed in the installation channel 31, and a matching plug rod 61 is fixedly provided on the movable card plate 6, and the matching plug rod 61 is inserted in the limiting plug hole 35, and an elastic connecting piece 62 is fixedly provided on the movable card plate 6, and the other end of the elastic connecting piece 62 is fixed on the inner wall of the installation channel 31, and locking protrusions 63 are symmetrically fixed at both ends of the movable card plate 6, and the locking protrusions 63 and the inclined locking block 56 are in contact with each other when locking the movable supporting platform 2.

[0043] When the valve is fixedly connected to the actuator body 1, the valve is brought into contact with the movable bearing platform 2, and then the movable bearing platform 2 is driven to move in the direction of the mounting platform 11 by pushing the valve. As the movable bearing platform 2 moves, the driving slat 3 is driven to move in the direction of the movable bearing platform 2 under the action of the movable rod 38. As the driving slat 3 moves, the first installation restriction strip 32 contacts the valve from the upper and lower sides of the valve to restrict its installation. At the same time, the first installation restriction block 33 contacts the end face of the valve to restrict its installation, and the driving slat 3 is in the process of moving. The driving rod 372 cooperates with the driving groove 45 to drive the second installation restriction strip 4 to move in the direction of the valve so that the second installation restriction strip 4 restricts the installation of the valve from the left and right sides, and the second installation restriction block 41 at this time also contacts the end face of the valve to restrict its installation. In addition, when the second installation restriction strip 4 moves, it will also drive the movable cavity block 472 to move so that it is no longer blocked in the adsorption channel 24. With the movement of the movable cavity block 472, negative pressure will be formed in the second matching cavity 23, thereby playing the role of adsorption and fixing the valve. At the same time, with the insertion of the carrier plate The movement of 47 will also drive the movable cavity plate 49 to move further into the first matching cavity 21 under the action of the connecting hinge rod 481, and then a negative pressure can be formed in the first matching cavity 21, which also plays a role of adsorption and fixation on the valve, and then under the action of negative pressure, it can play a certain auxiliary role in the fixation of the valve, fully ensuring the firmness of the valve installation. When the second installation restriction strip 4 moves, it will also drive the connecting movable block 5 to move, so that the bearing plate frame 55 on the connecting movable block 5 will also move synchronously, so that the inclined locking block 56 conflicts with the locking protrusion 63, and then the inclined locking block Under the action of 56, the locking protrusion 63 will be pushed to move until the inclined locking block 56 passes over the locking protrusion 63, and the movable clamping plate 6 will be reset under the action of the elastic connecting piece 62 to block the inclined locking block 56, so that it cannot move in the opposite direction, thereby achieving the fixation of the movable bearing platform 2. When the valve and the actuator body 1 need to be separated, it is only necessary to pull the upper and lower movable clamping plates 6 at the same time so that the locking protrusion 63 no longer blocks the inclined locking block 56, and the movable bearing platform 2 can be reset under the action of the spring 201, thereby achieving the unlocking of the valve. The operation is very simple and quick.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine valve actuator, comprising an actuator body (1), characterized in that: The actuator body (1) is provided with a mounting platform (11) for mounting the valve, connecting protrusions (12) are symmetrically fixedly provided on both sides of the mounting platform (11), and mounting guide holes (13) are symmetrically opened on both sides of the mounting platform (11); The installation platform (11) is provided with a valve support mechanism, the valve support mechanism is used to support the valve when installing the valve, and the upper and lower ends of the valve support mechanism are symmetrically provided with a first valve fixing component; The first valve fixing assembly is used for performing the first layer fixing of the valve; The valve second fixing assembly is also provided on both sides of the valve support mechanism, and the valve second fixing assembly is used for the second layer fixing of the valve. The valve second fixing assembly is also connected to the valve auxiliary fixing mechanism, and the valve is strengthened and fixed by the valve auxiliary fixing mechanism; The first valve fixing assembly and the second valve fixing assembly are provided with locking mechanisms, and the locking mechanisms are used to lock the supporting mechanism when the valve is installed.

2. A marine valve actuator according to claim 1, characterized in that: The supporting mechanism is a movable bearing platform (2), and when the valve is installed, the movable bearing platform (2) moves in the direction of the installation platform (11) to support and fix the valve; Mounting guide rods (20) are symmetrically fixedly arranged on both sides of the movable bearing platform (2), the mounting guide rods (20) are inserted into the mounting guide holes (13), matching springs (201) are sleeved on the mounting guide rods (20), and matching plates (202) are fixedly arranged on the mounting guide rods (20).

3. A marine valve actuator according to claim 2, characterized in that: The four corners of the movable supporting platform (2) are respectively provided with first matching cavities (21), the first matching cavities (21) are provided with connecting channels (22), and a second matching cavity (23) is provided on the movable supporting platform (2) beside the first matching cavity (21); The second matching cavity (23) is provided with an adsorption channel (24), the first matching cavity (21) is fixedly provided with an internal column (25), the internal column (25) is provided with a guide plug hole (251), and the first matching cavity (21) is also provided with a through hole (26), the through hole (26) is connected with the second matching cavity (23).

4. A marine valve actuator according to claim 3, characterized in that: The movable support platform (2) is symmetrically provided with plug-in connection holes (27) at the upper and lower ends, and the movable support platform (2) is also symmetrically provided with built-in installation cavities (28) at both sides, an inner bearing block (281) is fixedly arranged in the built-in installation cavity (28), a matching plug hole (282) is provided on the inner bearing block (281), and movable channels (283) are symmetrically provided in the built-in installation cavity (28).

5. A marine valve actuator according to claim 4, characterized in that: The first fixed component of the valve is a driving strip (3), the driving strip (3) is two symmetrically mounted at the upper and lower ends of the movable bearing platform (2), and a mounting channel (31) is provided on the driving strip (3); A first installation limiting strip (32) is fixedly arranged on the driving strip (3), a first installation limiting block (33) is fixedly arranged on the first installation limiting strip (32), a matching groove (34) is provided on the first installation limiting strip (32), and a limiting insertion hole (35) is provided at the bottom of the matching groove (34).

6. A marine valve actuator according to claim 5, characterized in that: Insertion connecting rods (36) are symmetrically fixedly arranged at both ends of the driving strip (3), the insertion connecting rods (36) are inserted into the insertion connecting holes (27), and a connecting strip (37) is fixedly arranged on the insertion connecting rods (36); The connecting strip (37) is partially located in the built-in installation cavity (28), a movable cavity hole (371) is provided on the connecting strip (37), a driving plug rod (372) is fixedly provided on the connecting strip (37), and a movable rod (38) is hingedly connected to the connecting strip (37), and the movable rod (38) passes through the movable channel (283) and is hingedly connected to the connecting protrusion (12).

7. A marine valve actuator according to claim 6, characterized in that: The second valve fixing component is a second installation limiting strip (4), and a second installation limiting block (41) is fixedly arranged on the second installation limiting strip (4); Matching connecting rods (42) are symmetrically fixedly provided at the upper and lower ends of the second installation limiting strip (4), and a limiting inserting rod (43) is fixedly provided on the second installation limiting strip (4), and the limiting inserting rod (43) is inserted into the matching inserting hole (282); The upper and lower ends of the second installation restriction strip (4) are also symmetrically fixed with connecting plates (44), and the connecting plates (44) are provided with driving grooves (45), and the driving grooves (45) are inserted with driving rods (372).

8. A marine valve actuator according to claim 7, characterized in that: The valve auxiliary fixing mechanism comprises a support plate frame (46), a movable cavity block (472) and a movable cavity plate (49); the support plate frame (46) is fixedly arranged on the connecting carrier plate (44); a plug-in support plate (47) is fixedly arranged on the support plate frame (46); the plug-in support plate (47) is plugged into the connecting channel (22); a bearing rod (471) is fixedly arranged on the plug-in support plate (47); the bearing rod (471) is plugged into the through hole (26); a movable cavity block (472) is fixedly arranged on the bearing rod (471); and the movable cavity block (472) is plugged into the second matching cavity (23).

9. A marine valve actuator according to claim 8, characterized in that: A matching convex frame (48) is also fixedly provided on the plug-in support plate (47), a connecting hinge rod (481) is hingedly connected to the matching convex frame (48), the other end of the connecting hinge rod (481) is hingedly connected to a movable cavity plate (49), the movable cavity plate (49) is plugged into the first matching cavity (21), and a guide carrier rod (491) is fixedly provided on the movable cavity plate (49), and the guide carrier rod (491) is plugged into the guide socket (251).

10. A marine valve actuator according to claim 9, characterized in that: The locking mechanism comprises a connecting movable block (5) and a movable clamping plate (6); a supporting connecting rod (51) is fixedly provided on the connecting movable block (5), and the supporting connecting rod (51) is inserted into the movable cavity hole (371); a matching bearing plate (52) is fixedly provided on one end of the connecting movable block (5); a connecting block (53) is fixedly provided on the matching bearing plate (52); a connecting plug hole (54) is provided on the connecting block (53); a matching connecting rod (42) is inserted into the connecting plug hole (54); a bearing plate frame (55) is also fixedly provided on the connecting movable block (5); a portion of the bearing plate frame (55) is inserted into the installation channel (31); and a bevel locking block (56) is fixedly provided on the bearing plate frame (55); The movable card plate (6) is installed in the installation channel (31), a matching plug rod (61) is fixedly provided on the movable card plate (6), the matching plug rod (61) is inserted into the limiting plug hole (35), and an elastic connecting piece (63) is fixedly provided on the movable card plate (6), and locking protrusions (63) are symmetrically fixedly provided at both ends of the movable card plate (6).

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