Rotating device of marine butterfly valve

Abstract

The utility model discloses a rotating device of a butterfly valve for a ship, which relates to the field of butterfly valves for ships, and comprises a rotating sleeve arranged in a valve body and two groups of butterfly plates fixedly connected on the rotating sleeve, the upper side of the valve body is fixedly connected with a vertical sleeve, a rotating valve rod is arranged on the vertical sleeve in a penetrating manner, and a bearing block is fixedly clamped on the lower side of the valve body. Two sets of connecting ring plates are fixedly connected to the outer side of the valve body, four sets of connecting sliding grooves are formed in the rotating valve rod, four sets of connecting sliding rods are fixedly connected into the rotating sleeve, and a rotating handle is arranged on the upper side of the rotating valve rod. The butterfly valve rotating device has the advantages that the butterfly valve can be opened or closed, the flow speed of water flowing through the butterfly valve can be adjusted, the butterfly plate of the butterfly valve can be prevented from moving in the using process, the using stability of the butterfly valve is remarkably improved, and the butterfly valve rotating device is suitable for popularization and application. The function of disassembling the butterfly valve rotating device step by step is achieved, and the maintenance difficulty of the rotating device is lowered.

Description

Technical Field

[0001] The utility model relates to the field of marine butterfly valves, and particularly relates to a rotating device for a marine butterfly valve. Background Art

[0002] A marine butterfly valve is a valve widely used in a ship pipeline system, and its main function is to realize the opening, closing or regulation of fluid by rotating a rotary valve flap on a rotating structure. The valve flap of the butterfly valve is in the shape of a disc, usually driven by a valve rod, and can complete the opening or closing operation by rotating 90 degrees in the pipeline along the direction perpendicular to the fluid flow direction.

[0003] The patent with the publication number CN217108243U discloses a marine butterfly valve for a desulfurization tower. An anti-corrosion coating is coated inside a first butterfly valve, a second butterfly valve and a filter pipe, which can effectively enhance the corrosion resistance of the butterfly valve to salts in seawater and sulfur in flue gas and improve the service life of the butterfly valve. However, when the rotating device of the marine butterfly valve is in use, the butterfly plate is prone to deflect under the long-term impact of fluid, and the use stability is relatively poor. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a rotating device for a marine butterfly valve. When the existing rotating device of the marine butterfly valve is in use, the butterfly plate is prone to deflect under the long-term impact of fluid, and the use stability is relatively poor.

[0005] To solve the above technical problem, the technical solution of the utility model is that a rotating device for a marine butterfly valve includes a rotating sleeve arranged inside a valve body, and further includes two groups of butterfly plates fixedly connected to the rotating sleeve. A vertical sleeve is fixedly connected to the upper side of the valve body, a rotating valve rod penetrates through the vertical sleeve, a bearing block is fixedly installed on the lower side of the valve body, and two groups of connecting ring plates are fixedly connected to the outer side of the valve body;

[0006] Four groups of connecting sliding grooves are formed on the rotating valve rod, four groups of connecting sliding rods are fixedly connected to the inside of the rotating sleeve, a rotating handle is arranged on the upper side of the rotating valve rod, and a long bolt penetrates through the rotating handle;

[0007] A fixed ring plate is fixedly sleeved on the outer side of the rotating valve rod near the top, a movable groove ring is movably installed on the periphery of the fixed ring plate, and a plurality of groups of clamping grooves are formed on the upper surface of the movable groove ring and located at the edge position.

[0008] As a further scheme of the utility model: the vertical cross-sectional shapes of the two groups of butterfly plates are both fan-shaped, and the two groups of butterfly plates are located on the same plane, and the two groups of butterfly plates are both located inside the valve body.

[0009] As a further solution of the utility model: the lower end of the rotating valve stem is located inside the bearing block, four groups of the connecting sliding grooves are equidistantly distributed on the rotating valve stem, four groups of the connecting sliding rods are equidistantly distributed inside the rotating sleeve, and the four groups of connecting sliding rods are respectively located inside the four groups of connecting sliding grooves.

[0010] As a further solution of the utility model: several groups of the clamping grooves are equidistantly distributed on the movable groove ring, and the long bolt passes through the rotating handle and is connected with the movable groove ring in cooperation with the clamping grooves.

[0011] As a further solution of the utility model: the lower surface of the movable groove ring is fixedly connected with an internal thread ring, and the internal thread ring is threadedly connected with the top end of the vertical sleeve.

[0012] As a further solution of the utility model: the upper end of the rotating valve stem is fixedly connected with a clamping block, the upper end of the clamping block is fixedly connected with a screw rod, a clamping hole is penetrated through the middle position of the rotating handle, and a nut is fixedly connected with the middle position on the upper side of the rotating handle.

[0013] As a further solution of the utility model: the clamping block is fitted with the clamping hole, and the screw rod is threadedly connected with the nut.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: by rotating the rotating handle to drive the rotation of the rotating valve stem, the rotating sleeve is driven to rotate under the cooperation of the four groups of connecting sliding rods, the four groups of connecting sliding grooves and the bearing block, and then the two butterfly plates are driven to rotate inside the valve body. Then, the long bolt is passed through the rotating handle and is matched with the clamping grooves on the movable groove ring, so as to fix the relative positions of the two butterfly plates and the valve body. Furthermore, the water flow velocity can be adjusted by the butterfly plates at different positions. The rotating device can not only open or close the butterfly valve, but also adjust the water flow velocity passing through the butterfly valve, and can prevent the butterfly plates of the butterfly valve from moving in position during use, significantly improving the use stability of the butterfly valve.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: first, the internal thread ring at the top end of the vertical sleeve is reversely rotated through the rotational cooperation of the movable groove ring and the fixed ring plate, and then the rotating valve stem is pulled out from the valve body through the four groups of connecting sliding rods and the four groups of connecting sliding grooves. At this time, the rotating sleeve and the two butterfly plates thereon can be taken out from the inside of the valve body together. Then, the rotating handle is separated from the rotating valve stem through the cooperation of the clamping block and the clamping hole and the screw rod and the nut, realizing the step-by-step disassembly function of the rotating device of the butterfly valve and reducing the maintenance difficulty of the rotating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a rotating device of a marine butterfly valve in an embodiment of the utility model;

[0017] Figure 2 Schematic diagram of the connection structure of the rotating sleeve in the embodiment of the utility model;

[0018] Figure 3 Schematic diagram of the connection structure of the movable groove ring in the embodiment of the utility model;

[0019] Figure 4 Schematic diagram of the connection structure of the rotating valve stem in the embodiment of the utility model;

[0020] Figure 5 Side view of the rotating device of a marine butterfly valve in the embodiment of the utility model.

[0021] In the figure: 1, valve body; 2, rotating sleeve; 3, butterfly plate; 4, connecting ring plate; 5, vertical sleeve; 6, rotating valve stem; 7, connecting chute; 8, connecting slide bar; 9, rotating handle; 10, long bolt; 11, bearing block; 12, fixed ring plate; 13, movable groove ring; 14, card slot; 15, internal thread ring; 16, card block; 17, card hole; 18, screw; 19, nut. Detailed implementation manners

[0022] The following further explains the detailed implementation manners of the utility model with reference to the accompanying drawings. It should be noted here that the description of these implementation manners is used to help understand the utility model, but does not constitute a limitation to the utility model. In addition, the technical features involved in the various implementation manners of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Embodiment 1, please refer to Figures 1 - 5 , a rotating device of a marine butterfly valve, including a rotating sleeve 2 arranged inside the valve body 1, and further including two groups of butterfly plates 3 fixedly connected to the rotating sleeve 2. A vertical sleeve 5 is fixedly connected to the upper side of the valve body 1. A rotating valve stem 6 is arranged through the vertical sleeve 5. A bearing block 11 is fixedly installed on the lower side of the valve body 1. Two groups of connecting ring plates 4 are fixedly connected to the outer side of the valve body 1. Four groups of connecting chutes 7 are opened on the rotating valve stem 6. Four groups of connecting slide bars 8 are fixedly connected to the inside of the rotating sleeve 2. A rotating handle 9 is arranged on the upper side of the rotating valve stem 6. A long bolt 10 is arranged through the rotating handle 9. A fixed ring plate 12 is fixedly sleeved on the outer side of the rotating valve stem 6 near the top. A movable groove ring 13 is movably installed on the periphery of the fixed ring plate 12. A plurality of card slots 14 are opened on the upper surface of the movable groove ring 13 and located at the edge position.

[0024] The vertical cross-sectional shapes of the two groups of butterfly plates 3 are both fan-shaped, and the two groups of butterfly plates 3 are located on the same plane, and the two groups of butterfly plates 3 are both located inside the valve body 1.

[0025] In this embodiment, the two groups of butterfly plates 3 are rotated inside the valve body 1 by means of the rotating sleeve 2.

[0026] The lower end of the rotating valve stem 6 is located inside the bearing block 11. Four groups of connecting sliding grooves 7 are evenly distributed on the rotating valve stem 6. Four groups of connecting sliding rods 8 are evenly distributed inside the rotating sleeve 2, and the four groups of connecting sliding rods 8 are respectively located inside the four groups of connecting sliding grooves 7.

[0027] In this embodiment, the rotating valve stem 6 is clamped with the rotating sleeve 2 through the cooperation of the four groups of connecting sliding rods 8 and the four groups of connecting sliding grooves 7.

[0028] Several groups of clamping grooves 14 are evenly distributed on the movable groove ring 13. The long bolt 10 passes through the rotating handle 9 and is connected with the movable groove ring 13 through the cooperation of the clamping grooves 14.

[0029] In this embodiment, the relative positions of the rotating handle 9 and the movable groove ring 13 are fixed through the cooperation of the long bolt 10 and the clamping grooves 14.

[0030] Specifically, by rotating the rotating handle 9 to drive the rotation of the rotating valve stem 6, the rotating sleeve 2 is driven to rotate under the cooperation of the four groups of connecting sliding rods 8, the four groups of connecting sliding grooves 7 and the bearing block 11, and then the two groups of butterfly plates 3 are driven to rotate inside the valve body 1. Then, the long bolt 10 is passed through the rotating handle 9 and cooperates with the clamping grooves 14 on the movable groove ring 13, so as to fix the relative positions of the two groups of butterfly plates 3 and the valve body 1. Furthermore, the water flow velocity can be adjusted by the butterfly plates 3 at different positions. This rotating device can not only open or close the butterfly valve, but also adjust the water flow velocity passing through the butterfly valve, and can prevent the butterfly plates 3 of the butterfly valve from moving during use, significantly improving the use stability of the butterfly valve.

[0031] Embodiment 2, please refer to Figures 1 - 5 A rotating device for a marine butterfly valve, including a rotating sleeve 2 arranged inside the valve body 1, and further including two groups of butterfly plates 3 fixedly connected to the rotating sleeve 2. A vertical sleeve 5 is fixedly connected to the upper side of the valve body 1. A rotating valve stem 6 is arranged through the vertical sleeve 5. A bearing block 11 is fixedly installed on the lower side of the valve body 1. Two groups of connecting ring plates 4 are fixedly connected to the outside of the valve body 1. Four groups of connecting sliding grooves 7 are formed on the rotating valve stem 6. Four groups of connecting sliding rods 8 are fixedly connected to the inside of the rotating sleeve 2. A rotating handle 9 is arranged on the upper side of the rotating valve stem 6. A long bolt 10 is arranged through the rotating handle 9. A fixed ring plate 12 is fixedly sleeved on the outer side of the rotating valve stem 6 near the top. A movable groove ring 13 is movably installed on the periphery of the fixed ring plate 12. Several groups of clamping grooves 14 are formed on the upper surface of the movable groove ring 13 and located at the edge position

[0032] The lower surface of the movable groove ring 13 is fixedly connected with an internal thread ring 15, and the internal thread ring 15 is threadedly connected with the top end of the vertical sleeve 5.

[0033] In this embodiment, the longitudinal position of the rotating valve stem 6 is fixed by the threaded connection between the internal thread ring 15 and the vertical sleeve 5.

[0034] A clamping block 16 is fixedly connected to the upper end of the rotating valve stem 6. A screw rod 18 is fixedly connected to the upper end of the clamping block 16. A clamping hole 17 is formed through the middle position of the rotating handle 9. A nut 19 is fixedly connected to the middle position on the upper side of the rotating handle 9. The clamping block 16 is fitted with the clamping hole 17, and the screw rod 18 is threadedly connected to the nut 19.

[0035] In this embodiment, the rotating valve stem 6 is clamped with the rotating handle 9 by the cooperation of the clamping block 16 and the clamping hole 17 and the screw rod 18 and the nut 19.

[0036] Specifically, first, the internal thread ring 15 at the top of the vertical sleeve 5 is rotated in the reverse direction through the rotational cooperation of the movable groove ring 13 and the fixed ring plate 12. Then, the rotating valve stem 6 is pulled out from the valve body 1 through the four groups of connecting slide rods 8 and the four groups of connecting chutes 7. At this time, the rotating sleeve 2 and the two butterfly plates 3 thereon can be taken out from the inside of the valve body 1 together. Then, the rotating handle 9 is separated from the rotating valve stem 6 by the cooperation of the clamping block 16 and the clamping hole 17 and the screw rod 18 and the nut 19, realizing the step-by-step disassembly function of the butterfly valve rotating device and reducing the maintenance difficulty of the rotating device.

[0037] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A rotating device for a marine butterfly valve, comprising a rotating sleeve (2) arranged inside a valve body (1), characterized in that: It further includes two groups of butterfly plates (3) fixedly connected to the rotating sleeve (2). A vertical sleeve (5) is fixedly connected to the upper side of the valve body (1). A rotating valve stem (6) is disposed through the vertical sleeve (5). A bearing block (11) is clamped and installed on the lower side of the valve body (1). Two groups of connecting ring plates (4) are fixedly connected to the outer side of the valve body (1). Four groups of connecting sliding grooves (7) are formed on the rotating valve stem (6). Four groups of connecting sliding rods (8) are fixedly connected to the inside of the rotating sleeve (2). A rotating handle (9) is disposed on the upper side of the rotating valve stem (6). A long bolt (10) is disposed through the rotating handle (9). A fixed ring plate (12) is fixedly sleeved on the outer side of the rotating valve stem (6) near the top. A movable groove ring (13) is movably installed on the periphery of the fixed ring plate (12). A plurality of card slots (14) are formed on the upper surface of the movable groove ring (13) at the edge position.

2. The rotating device of a marine butterfly valve according to claim 1, characterized in that: The vertical cross-sectional shapes of the two groups of butterfly plates (3) are both fan-shaped, and the two groups of butterfly plates (3) are located on the same plane. The two groups of butterfly plates (3) are both located inside the valve body (1).

3. The rotating device of a marine butterfly valve according to claim 1, characterized in that: The lower end of the rotating valve stem (6) is located inside the bearing block (11). The four groups of connecting sliding grooves (7) are equally spaced on the rotating valve stem (6). The four groups of connecting sliding rods (8) are equally spaced on the inner side of the rotating sleeve (2), and the four groups of connecting sliding rods (8) are respectively located inside the four groups of connecting sliding grooves (7).

4. The rotating device of a marine butterfly valve according to claim 1, characterized in that: The plurality of card slots (14) are equally spaced on the movable groove ring (13). The long bolt (10) passes through the rotating handle (9) and is connected to the movable groove ring (13) in cooperation with the card slots (14).

5. The rotating device of a marine butterfly valve according to claim 4, characterized in that: A female thread ring (15) is fixedly connected to the lower surface of the movable groove ring (13), and the female thread ring (15) is threadedly connected to the top end of the vertical sleeve (5).

6. The rotational device of a marine butterfly valve according to claim 3, characterized in that: A block (16) is fixedly connected to the upper end of the rotating valve stem (6). A screw rod (18) is fixedly connected to the upper end of the block (16). A card hole (17) is formed through the middle position of the rotating handle (9), and a nut (19) is fixedly connected to the middle position on the upper side of the rotating handle (9).

7. The rotating device of a marine butterfly valve according to claim 6, characterized in that: The block (16) is fitted with the card hole (17), and the screw rod (18) is threadedly connected to the nut (19).

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