Ship valve hand wheel operating device and using method

Abstract

The invention discloses a ship valve piece hand wheel control device and a using method, relates to the technical field of ship valve piece hand wheel control, and provides the following scheme that the ship valve piece hand wheel control device comprises a telescopic adjusting mechanism and a hand wheel control mechanism, and the telescopic adjusting mechanism comprises a lengthening rod and a telescopic rod. The telescopic rod is arranged in the lengthening rod, a plurality of threaded holes are formed in the side of the telescopic rod, two positioning threaded holes of the same specification are correspondingly formed in the upper portion of the lengthening rod, an operator can adjust the distance of the telescopic rod, screw in and fix the threaded rod and adapt to valves of different heights according to the height and tightness of the valves, the mounting hole is formed in the side of the wrench rod, and the two wrench claws can be inserted into the mounting hole. An operator adjusts the distance according to the specification of the hand wheel and fixes the hand wheel through a bolt and a nut, the hand wheel can be matched with various hand wheels, and universality is improved. A first rotating shaft is connected with two oppositely-arranged ratchet wheels through a connecting plate, a telescopic rod is connected with the ratchet wheels through a sleeve, a pawl is arranged on a fixing plate, meshed with the ratchet wheels and provided with a spring piece, and a lengthening rod is pulled by bare hands, so that the hand wheel can be operated in a reciprocating mode. Efficiency is improved and intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding, and more specifically to a handwheel control device for ship valves and its usage method. Background Technology

[0002] Operating the handwheels of various valves is a common and crucial part of shipbuilding and operation. For example, the handwheels of straight-through gate valves installed vertically at a high position and right-angle gate valves installed horizontally at a high position are inconvenient to operate by hand. Furthermore, valves in the ship's steam system require frequent operation. Due to the high temperature of the valve handwheels, manual operation poses safety hazards, and some larger valves have very tight openings and closing mechanisms, making manual operation extremely difficult. Moreover, on the one hand, the handwheel sizes of different valve specifications vary significantly, and existing operating tools are insufficient to flexibly adapt to various sizes, often requiring the preparation of multiple tools of different sizes. This not only increases costs but also reduces work efficiency due to frequent tool changes. On the other hand, valves on ships are installed in diverse locations with varying heights and spatial layouts. When operating the handwheels, operators often face space constraints or unsuitable distances, making it difficult to apply force directly and effectively, leading to operational difficulties and potentially affecting the accuracy and safety of the operation.

[0003] Most existing tools for operating handwheels on ship valves have simple structures and limited functions. They lack effective adjustment mechanisms when dealing with valves of different heights and tightness, and cannot be flexibly extended or fixed according to actual conditions. This results in operators having to expend more physical strength and energy, and prolonged operation can easily lead to fatigue, affecting work efficiency and operation quality.

[0004] Furthermore, traditional tools require frequent insertion and removal from the handwheel during continuous operation, resulting in a discontinuous operation process and further reducing work efficiency, making it difficult to meet the requirements for efficient and accurate valve operation during ship operation. To address these issues, we propose a ship valve handwheel operating device and a method for using this device to rotate and adjust the numerous valve handwheels on a ship. Summary of the Invention

[0005] To address the shortcomings mentioned in the background art, this invention provides a handwheel operating device and method for using ship valves. The operating device of this invention is designed to be specific, applicable to the opening and closing operations of handwheels on ship valves at different heights, and can improve work efficiency and reduce the labor intensity of operators when operating a large number of handwheels on valves in different locations.

[0006] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows: A handwheel operating device for a ship valve includes a telescopic adjustment mechanism and a handwheel operating mechanism. The telescopic mechanism includes an extension rod and a telescopic rod. The telescopic rod is disposed inside the extension rod, and the top end of the telescopic rod extends through and to the upper part of the extension rod. The handwheel operating mechanism includes an adjustment mechanism and a rotation operating mechanism. The adjustment mechanism includes a wrench lever, a wrench pawl, and a positioning plate. There are two wrench pawls, and the two wrench pawls are mounted on the wrench lever. The positioning plate is mounted on the wrench pawls. The rotating control mechanism includes a first rotating shaft, ratchet, and sleeve. There are two ratchets arranged in opposite directions, and the two ratchets are respectively installed on both sides of the outer ring of the first rotating shaft. The sleeve is disposed on the middle outer ring of the first rotating shaft, and one end of the telescopic rod is fixedly installed in the middle of the outer ring of the sleeve.

[0007] In the above-mentioned technical solution of a ship valve handwheel operating device and its usage method, preferably: the extension rod is made of steel pipe, the telescopic rod is set inside the tube of the extension rod, a plurality of threaded holes are evenly opened on one side of the telescopic rod, and a rubber ring is fitted on the lower part of the outer ring of the extension rod.

[0008] Preferably, two positioning threaded holes are provided on the upper part of the outer wall of one side of the extension rod, and the positioning threaded holes are the same as the threaded holes provided on one side of the telescopic rod. A matching fixing threaded rod is provided in the positioning threaded holes provided on the extension rod. A circular plate is welded to one end of the fixing threaded rod, and a rotating plate is symmetrically welded to the outer ring of the circular plate.

[0009] Preferably, a plurality of mounting holes are evenly provided on one side of the wrench handle, and two wrench claws are inserted into the mounting holes provided on one side of the wrench handle. A positioning plate is fixedly installed on one side of the outer ring of the wrench claws, and an arc-shaped through groove matching the outer ring of one side of the wrench handle is provided on the side of the positioning plate near the wrench handle.

[0010] Preferably, the wrench bar has a mounting hole perpendicular to the wrench claw, and the mounting hole extends through the wrench claw into the mounting hole of the wrench bar. The wrench bar and the wrench claw are fixed in the mounting holes by bolts and nuts.

[0011] Preferably, one end of the first rotating shaft is provided with a through groove that can accommodate the wrench handle, and the outer ring of the middle part of the wrench handle is placed in the through groove at one end of the first rotating shaft. One side of the first rotating shaft is provided with a mounting hole that passes through the through groove of the first rotating shaft. The middle part of the wrench handle located in the through groove of the first rotating shaft is also provided with a mounting hole, and the mounting holes on the first rotating shaft and the wrench handle are fixed by bolts and nuts.

[0012] Preferably, multiple connecting plates are evenly fixedly installed on both outer rings of the first rotating shaft, and the side of the connecting plate away from the first rotating shaft is fixedly connected to the inner ring of the ratchet. The sleeve is sleeved on the middle of the outer ring of the first rotating shaft, and the sleeve is rotatably connected to the first rotating shaft.

[0013] Preferably: a fixing plate is fixedly installed on the upper outer ring of the telescopic rod outside the extension rod, and support plates are fixedly installed on both sides of the top surface of the fixing plate. A second rotating shaft passing through the support plate is rotatably connected to one side of the support plate. A pawl is fixedly installed on the outer ring of one side of the second rotating shaft. The two pawls are respectively engaged with two ratchet wheels. A spring plate is installed on the bottom of the pawl and the side of the fixing plate that is close to each other.

[0014] Preferably, a threaded hole is provided on one side of the top of the support plate. When the second rotating shaft rotates to the state where the pawl is disengaged from the ratchet, a limit hole is provided directly below the threaded hole on the support plate. A matching limit bolt is provided in the threaded hole on the top of the support plate. A matching limit nut is provided on the outer ring of the limit bolt. The bottom of the limit bolt can be inserted into the limit hole on the second rotating shaft.

[0015] It also includes the following usage methods: S1. Adjust the distance between the two wrench claws according to the specifications of the valve handwheel. After adjustment, fix the wrench claws to the wrench handle with bolts and nuts to ensure a tight installation. S2, adjust the extension distance of the telescopic rod on the extension rod according to the height position and tightness of the valve, so that the wrench claw is located at the handwheel position. After the adjustment is completed, fix the threaded rod on the fixed circular plate to install and tighten the telescopic rod and the extension rod. S3, when using the wrench claw to operate the valve handwheel, the second rotating shaft can be controlled by the limit bolt and limit nut, thereby controlling the corresponding pawl. Then the wrench claw can be inserted into the valve handwheel. The user can hold the rubber ring on the extension rod and operate the valve by hand by turning the extension rod. This allows for reciprocating and continuous operation of the handwheel on the valve, avoiding the need to frequently insert the wrench claw into the valve handwheel when operating the handwheel.

[0016] As can be seen from the above technical solution, the present invention provides a handwheel operating device for ship valves and a method of using it. Compared with the prior art, the present invention has the following beneficial effects: This invention relates to a ship valve handwheel operating device. Through a telescopic rod and an extension rod, the operator can easily adjust the telescopic rod's extension distance within the extension rod to accommodate valves at different heights and with varying tightness. Once adjusted to the appropriate position, the circular plate and rotating plate facilitate the application of force, ensuring a secure connection between the telescopic rod and the extension rod. The device maintains structural stability during operation, allowing the wrench claw to be accurately positioned at the appropriate location on the handwheel, thus adapting to valves at various installation heights.

[0017] The present invention relates to a ship valve handwheel operating device with multiple mounting holes evenly spaced on one side of a wrench lever, into which two wrench claws are inserted. Since different valve handwheels vary in size and shape, the operator can flexibly adjust the distance between the two wrench claws according to the specific specifications of the valve handwheel. After adjustment, the wrench claws are firmly fixed to the wrench lever with bolts and nuts to ensure a tight installation. This design allows the operating device to be adapted to various valve handwheels of different specifications, greatly improving the versatility and practicality of the device.

[0018] When the handwheel operating device for marine valves of this invention is used on the hull, multiple connecting plates are evenly fixedly installed on the outer rings of both sides of the first rotating shaft. The side of the connecting plate away from the first rotating shaft is fixedly connected to the inner ring of the ratchet, and the two ratchets are arranged in opposite directions. One end of the telescopic rod is fixedly installed in the middle of the outer ring of the sleeve. The sleeve is fitted in the middle of the outer ring of the first rotating shaft and can rotate. The fixing plate is fixedly installed on the upper outer ring of the telescopic rod outside the extension rod. The second rotating shaft is rotatably connected to the support plates on both sides of its top surface. A pawl is fixedly installed on one side of the outer ring of the second rotating shaft. The two pawls are respectively engaged with the two ratchets. A spring plate is installed on the bottom of the pawl and the side close to the fixing plate. In actual operation, when the user holds the rubber ring on the extension rod and turns the extension rod by hand, the ratchet and pawl can be used to continuously operate the handwheel on the valve. This avoids the need to frequently insert and remove the wrench pawl when operating the handwheel, thus improving work efficiency and reducing the labor intensity of the operator. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a handwheel operating device for ship valves according to the present invention; Figure 2This is a schematic diagram showing a structural comparison of the telescopic rod and the extension rod before and after separation in a ship valve handwheel control device according to the present invention; Figure 3 This is an exploded view of the wrench claw installation structure in a ship valve handwheel operating device according to the present invention; Figure 4 This is a partial cross-sectional view of the support plate in a handwheel control device for a ship valve according to the present invention.

[0021] Appendix Figure 1 -Appendix Figure 4 The correspondence between the components is as follows: 1. Extension rod; 101. Rubber ring; 102. Telescopic rod; 103. Round plate; 104. Rotating plate; 105. Fixed threaded rod; 2. Fixed plate; 3. Wrench rod; 301. Wrench claw; 302. Positioning plate; 4. First rotating shaft; 401. Connecting plate; 402. Ratchet; 403. Sleeve; 5. Pawl; 501. Support plate; 502. Limit bolt; 503. Limit nut; 504. Second rotating shaft; 505. Spring plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention. Example 1

[0023] Please see Figure 1 and Figure 2 This embodiment provides a handwheel operating device for a ship valve, which includes a telescopic adjustment mechanism and a handwheel operating mechanism. The telescopic adjustment mechanism consists of an extension rod 1 and a telescopic rod 102. The extension rod 1 is made of steel pipe. The telescopic rod 102 is installed inside the pipe of the extension rod 1, with its top end penetrating and extending to the upper part of the extension rod 1. Multiple threaded holes are evenly opened on one side of the telescopic rod 102. Two positioning threaded holes are opened on the upper part of the outer wall of one side of the extension rod 1, which are the same as the threaded holes on one side of the telescopic rod 102. A matching fixed threaded rod 105 is installed in the positioning threaded hole on the extension rod 1. A circular plate 103 is welded to one end of the fixed threaded rod 105. A rotating plate 104 is symmetrically welded to the outer ring of the circular plate 103. A rubber ring 101 is fitted on the lower part of the outer ring of the extension rod 1.

[0024] like Figure 4As shown, the handwheel operating mechanism includes an adjustment mechanism and a rotation operating mechanism. In the adjustment mechanism, multiple mounting holes are evenly opened on one side of the wrench lever 3, into which two wrench claws 301 are inserted. A positioning plate 302 is fixedly installed on one side of the outer ring of the wrench claws 301. An arc-shaped through groove matching the outer ring of one side of the wrench lever 3 is opened on the side of the wrench lever 3 near the wrench lever 3. A mounting and fixing hole perpendicular to the inserted wrench claws 301 is opened on one side of the wrench lever 3, through which the wrench claws 301 are inserted into the mounting hole of the wrench lever 3. The wrench lever 3 and the wrench claws 301 are fixed in the mounting holes by bolts and nuts.

[0025] In the rotating operating mechanism, a through groove is formed at one end of the first rotating shaft 4 to accommodate the wrench lever 3. The outer ring of the middle part of the wrench lever 3 is placed in the through groove. A mounting hole is formed on one side of the first rotating shaft 4 that passes through the through groove. A mounting hole is also formed on the side of the middle part of the wrench lever 3 located in the through groove. The two are fixed by bolts and nuts. Multiple connecting plates 401 are evenly fixedly installed on both sides of the outer ring of the first rotating shaft 4. The side of the connecting plate 401 away from the first rotating shaft 4 is fixedly connected to the inner ring of the ratchet 402. Two ratchets 402 are arranged in opposite directions on both sides of the outer ring of the first rotating shaft 4.

[0026] The sleeve 403 is fitted onto the middle of the outer ring of the first rotating shaft 4 and is rotatably connected to the first rotating shaft 4. One end of the telescopic rod 102 is fixedly installed in the middle of the outer ring of the sleeve 403. A fixing plate 2 is fixedly installed on the upper outer ring of the telescopic rod 102 outside the extension rod 1. Support plates 501 are fixedly installed on both sides of the top surface of the fixing plate 2. A second rotating shaft 504 passing through the support plate 501 is rotatably connected to one side of the support plate 501. A pawl 5 is fixedly installed on the outer ring of one side of the second rotating shaft 504. The two pawls 5 respectively mesh with two ratchet wheels 402. A spring plate 505 is installed on the side of the bottom of the pawl 5 that is close to the fixing plate 2. Figure 4 As shown.

[0027] A threaded hole is opened on one side of the top of the support plate 501. When the second rotating shaft 504 rotates to the state where the pawl 5 is disengaged from the ratchet 402, a limiting through hole is opened directly below the threaded hole of the support plate 501. A matching limiting bolt 502 is installed in the threaded hole at the top of the support plate 501. A matching limiting nut 503 is installed on the outer ring of the limiting bolt 502. The bottom of the limiting bolt 502 can be inserted into the limiting through hole opened on the second rotating shaft 504.

[0028] During shipbuilding, when straight-through gate valves are installed vertically at a high position and right-angle gate valves are installed horizontally at a high position, the valve handwheels are inconvenient to operate by hand. Simultaneously, valves in the ship's steam system require frequent adjustments to their opening and closing, but due to the high temperature of the valve handwheels, manual operation poses a safety hazard. Furthermore, some larger valves have very tight openings and closing mechanisms, making manual operation extremely difficult. Therefore, when using the operating device of this invention to adjust the ship's valve handwheels, first adjust the distance between the two wrench claws 301 according to the valve handwheel specifications. After adjustment, fix the wrench claws 301 to the wrench rod 3 with bolts and nuts to ensure a secure installation.

[0029] Next, adjust the extension distance of the telescopic rod 102 on the extension rod 1 according to the height position and tightness of the valve, so that the wrench claw 301 is located at the handwheel. After adjustment, rotate the circular plate 103 to drive the fixed threaded rod 105 into the corresponding threaded hole, so that the telescopic rod 102 and the extension rod 1 are installed and tightened. When it is necessary to use the wrench claw 301 to operate the valve handwheel, first loosen the limit nut 503, pull out the limit bolt 502, rotate the second rotating shaft 504 to make the pawl 5 engage with the ratchet 402, and then insert the wrench claw 301 into the valve handwheel. The user holds the rubber ring 101 on the extension rod 1 and turns the extension rod 1 by hand. The pawl 5 engages with the ratchet 402 to rotate the first shaft 4, which in turn drives the wrench lever 3 and the wrench pawl 301 to rotate, thereby controlling the valve. This allows for continuous reciprocating operation and avoids frequently inserting the wrench pawl 301 into the valve handwheel. If the valve handwheel needs to be turned in the opposite direction, another pawl 5 can be engaged with the ratchet 402, and this pawl 5 can be disengaged from the ratchet 402 using the limit bolt 502 and the limit nut 503. After that, the handwheel on the valve can be operated using the above method.

[0030] Example 2: Please refer to Figures 1-4 The telescopic adjustment mechanism and handwheel operating mechanism of the valve handwheel operating device of this ship are the same as those in Embodiment 1. When dealing with valve handwheels of different specifications, the operation of adjusting the distance of the wrench claw 301 is more meticulous. First, loosen the bolts and nuts that fix the wrench claw 301 on the wrench rod 3 appropriately. According to the specific size of the valve handwheel, slowly move the position of the wrench claw 301 in the mounting hole of the wrench rod 3. At the same time, observe the fit between the positioning plate 302 and the wrench rod 3 to ensure accurate positioning. After adjusting to a suitable distance, tighten the bolts and nuts to ensure that the wrench claw 301 is firmly installed.

[0031] When there are significant differences in the height and tightness of valve components, the required length can be roughly estimated before adjusting the telescopic rod 102. Pull the telescopic rod 102 out or retract it into the extension rod 1 so that the wrench claw 301 is close to the handwheel position. Then, make fine adjustments while observing the relative position of the wrench claw 301 and the handwheel. Slowly rotate the circular plate 103 to move the fixed threaded rod 105. When you feel that the fixed threaded rod 105 is accurately aligned with the threaded hole on the telescopic rod 102 and there is a certain resistance, it indicates that the telescopic rod 102 and the extension rod 1 have been installed and tightened.

[0032] Implementation effect: The telescopic rod 102 is set inside the extension rod 1, and multiple threaded holes are evenly opened on one side of the telescopic rod 102. Two positioning threaded holes are also opened on the upper part of the outer wall of one side of the extension rod 1. These positioning threaded holes are the same as the threaded holes opened on one side of the telescopic rod 102. In actual use, for valves with different height positions and tightness, the operator can easily adjust the telescopic distance of the telescopic rod 102 in the extension rod 1. After adjusting to the appropriate position, simply screw the fixing threaded rod 105 into the corresponding threaded hole. Using the circular plate 103 and the rotating plate 104 to easily apply force, the telescopic rod 102 and the extension rod 1 can be installed and fastened. The device is structurally stable during operation, so that the wrench claw 301 is accurately positioned at the appropriate position of the handwheel, which can adapt to valves with different installation heights.

[0033] like Figure 4 As shown, multiple mounting holes are evenly provided on one side of the wrench lever 3, and two wrench claws 301 are inserted into them. Since the sizes and shapes of different valve handwheels vary, the operator can flexibly adjust the distance between the two wrench claws 301 according to the specific specifications of the valve handwheel. After adjustment, the wrench claws 301 are firmly fixed to the wrench lever 3 with bolts and nuts to ensure tight installation. This design allows the operating device to be adapted to various valve handwheels of different specifications, greatly improving the versatility and practicality of the device.

[0034] Multiple connecting plates 401 are evenly fixedly installed on both outer rings of the first rotating shaft 4. The side of the connecting plate 401 away from the first rotating shaft 4 is fixedly connected to the inner ring of the ratchet 402, and the two ratchets 402 are arranged in opposite directions. One end of the telescopic rod 102 is fixedly installed in the middle of the outer ring of the sleeve 403. The sleeve 403 is fitted in the middle of the outer ring of the first rotating shaft 4 and can rotate. The fixing plate 2 is fixedly installed on the upper outer ring of the telescopic rod 102 outside the extension rod 1, and the support plates 501 on both sides of its top surface are fixedly installed on the outer ring of the telescopic rod 102. A second rotating shaft 504 is rotatably connected to the upper part of the extension rod 1. A pawl 5 is fixedly mounted on the outer ring of one side of the second rotating shaft 504. Two pawls 5 engage with two ratchet wheels 402 respectively. A spring plate 505 is mounted on the bottom of the pawl 5, close to the fixed plate 2. The spring plate 505 is an integral V-shape, with one side welded to the bottom of the pawl 5, allowing the pawl 5 to rotate within a certain elastic range around the second rotating shaft 504. This spring plate can engage with the ratchet wheels 5 in a series of grooves as they rotate, preventing reverse rebound. In actual operation, when the user holds the rubber ring 101 on the extension rod 1 and manually operates it, the ratchet wheels 402 and pawls 5 work together to continuously rotate the handwheel on the valve in one direction. The swing amplitude can be controlled within a certain range, preventing large swings of the extension rod 1. To reverse the operation, simply fix one ratchet wheel and rotate the other to achieve reverse operation of the valve handwheel. The design of the special device of this invention avoids the need to frequently insert and remove the wrench claw 301 from the valve handwheel when operating the handwheel, thereby improving work efficiency and reducing the labor intensity of the operator.

[0035] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A handwheel operating device for a ship valve, characterized in that: It includes a telescopic adjustment mechanism and a handwheel operating mechanism. The telescopic mechanism includes an extension rod (1) and a telescopic rod (102). The telescopic rod (102) is located inside the extension rod (1), and the top end of the telescopic rod (102) extends through and to the upper part of the extension rod (1). The handwheel operating mechanism includes an adjustment mechanism and a rotation operating mechanism. The adjustment mechanism includes a wrench lever (3), a wrench claw (301), and a positioning plate (302). There are two wrench claws (301), and the two wrench claws (301) are mounted on the wrench lever (3). The positioning plate (302) is mounted on the wrench claws (301). The rotating control mechanism includes a first rotating shaft (4), a ratchet (402), and a sleeve (403). There are two ratchets (402) arranged in opposite directions, and the two ratchets (402) are respectively installed on both sides of the outer ring of the first rotating shaft (4). The sleeve (403) is located on the middle outer ring of the first rotating shaft (4), and one end of the telescopic rod (102) is fixedly installed in the middle of the outer ring of the sleeve (403).

2. The handwheel operating device for a ship valve according to claim 1, characterized in that: The extension rod (1) is made of steel pipe. The telescopic rod (102) is installed inside the tube of the extension rod (1). Multiple threaded holes are evenly opened on one side of the telescopic rod (102). A rubber ring (101) is fitted on the lower part of the outer ring of the extension rod (1).

3. The handwheel operating device for a ship valve according to claim 1, characterized in that: Two positioning threaded holes are opened on the upper part of the outer wall of one side of the extension rod (1), and the positioning threaded holes are the same as the threaded holes opened on one side of the telescopic rod (102). A matching fixed threaded rod (105) is provided in the positioning threaded holes opened on the extension rod (1). A circular plate (103) is welded to one end of the fixed threaded rod (105), and a rotating plate (104) is symmetrically welded to the outer ring of the circular plate (103).

4. A handwheel operating device for ship valves according to claim 1, characterized in that: The wrench handle (3) has multiple mounting holes evenly distributed on one side. Two wrench claws (301) are inserted into the mounting holes on one side of the wrench handle (3). A positioning plate (302) is fixedly installed on one side of the outer ring of the wrench claws (301). An arc-shaped through groove matching the outer ring of one side of the wrench handle (3) is provided on the side of the positioning plate (302) near the wrench handle (3).

5. A handwheel operating device for ship valves according to claim 1, characterized in that: The wrench rod (3) has a mounting hole perpendicular to the wrench claw (301) on one side, and the mounting hole penetrates the wrench claw (301) inserted into the mounting hole of the wrench rod (3). The wrench rod (3) and the wrench claw (301) are fixed in the mounting holes by bolts and nuts.

6. A handwheel operating device for a ship valve according to claim 1, characterized in that: One end of the first rotating shaft (4) is provided with a through groove that can accommodate the wrench rod (3), and the outer ring of the middle part of the wrench rod (3) is placed in the through groove opened at one end of the first rotating shaft (4). One side of the first rotating shaft (4) is provided with a mounting hole that passes through the through groove opened in the first rotating shaft (4). The middle part of the wrench rod (3) located in the through groove of the first rotating shaft (4) is also provided with a mounting hole. The mounting holes opened on the first rotating shaft (4) and the wrench rod (3) are fixed by bolts and nuts.

7. A handwheel operating device for a ship valve according to claim 1, characterized in that: Multiple connecting plates (401) are evenly fixedly installed on the outer rings of both sides of the first rotating shaft (4). The side of the connecting plate (401) away from the first rotating shaft (4) is fixedly connected to the inner ring of the ratchet (402). The sleeve (403) is sleeved in the middle of the outer ring of the first rotating shaft (4), and the sleeve (403) is rotatably connected to the first rotating shaft (4).

8. A handwheel operating device for a ship valve according to claim 1, characterized in that: The telescopic rod (102) is fixedly mounted on the upper outer ring outside the extension rod (1) with a fixed plate (2). Support plates (501) are fixedly mounted on both sides of the top surface of the fixed plate (2). A second rotating shaft (504) is rotatably connected to one side of the support plate (501) and passes through the support plate (501). A pawl (5) is fixedly mounted on the outer ring of one side of the second rotating shaft (504). The two pawls (5) are respectively engaged with two ratchet wheels (402). A spring plate (505) is installed on the bottom of the pawl (5) and the side of the fixed plate (2) that is close to each other.

9. A handwheel operating device for a ship valve according to claim 8, characterized in that: The support plate (501) has a threaded hole on one side of its top. When the second rotating shaft (504) rotates to the state where the pawl (5) is disengaged from the ratchet (402), the second rotating shaft (504) is located directly below the threaded hole of the support plate (501) and has a limiting through hole. A matching limiting bolt (502) is provided in the threaded hole at the top of the support plate (501). A matching limiting nut (503) is provided on the outer ring of the limiting bolt (502). The bottom of the limiting bolt (502) can be inserted into the limiting through hole on the second rotating shaft (504).

10. The handwheel operating device for a ship valve according to claim 1 further includes the following method of use, characterized in that: S1, adjust the distance between the two wrench claws (301) according to the specifications of the valve handwheel to be operated. After the adjustment is completed, fix the wrench claws (301) to the wrench rod (3) with bolts and nuts to make it securely installed. S2, adjust the telescopic distance of the telescopic rod (102) on the extension rod (1) according to the height position and tightness of the valve, so that the wrench claw (301) can be inserted into the position of the valve handwheel. After the adjustment is completed, install the fixed threaded rod (105) on the fixed circular plate (103) to fasten the telescopic rod (102) and the extension rod (1). S3, before using the wrench claw (301) to insert into the valve handwheel for operation, the second rotating shaft (504) is controlled by the limit bolt (502) and the limit nut (503) according to the required rotation adjustment direction of the valve handwheel, so as to control the corresponding ratchet (5). The adjustment direction is fixed by selecting different ratchets to operate. After selecting the rotation adjustment direction, the wrench claw (301) is inserted into the valve handwheel. The user can hold the rubber ring (101) on the extension rod (1) and manually turn the extension rod (1) to rotate the valve. S4, the extended rod (1) can be rotated repeatedly to continuously operate the handwheel on the valve to tighten or loosen it, avoiding the need to frequently insert the wrench claw (301) into the handwheel when operating the handwheel. When the reverse operation is required, the fixed ratchet can be replaced to achieve the reverse operation.

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