ROV deep sea ball valve device with automatic limiting structure

Abstract

The utility model particularly relates to an ROV deep sea ball valve device with an automatic limiting structure, a connecting shaft seat is fixed above a valve body, a valve rod is rotatably arranged in the connecting shaft seat, one end of the valve rod far away from a ball body is connected with a shaft sleeve, and the periphery of the shaft sleeve extends towards the inner wall of the connecting shaft seat to form a first convex part and a second convex part. A first limiting piece and a second limiting piece are arranged on the side wall of the connecting shaft seat inwards in a penetrating mode, the shaft sleeve and the ball body synchronously rotate along with the valve rod, and through cooperation between the limiting pieces on the shaft sleeve and the protruding portion on the valve rod, the first limiting piece forms limiting when the ball valve is opened to the designated position, and the second limiting piece forms limiting when the ball valve is closed to the designated position. And the accuracy of opening and closing operation of the deep sea ball valve is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of deep-sea ball valves, in particular to an ROV deep-sea ball valve device with an automatic limiting structure. Background Art

[0002] Deep sea ball valve is a ball valve used for opening and closing pipelines in the underwater manifolds, submarine pipeline terminals and oil and gas transmission pipelines in offshore oil and gas projects, and plays a key role in the safe transportation of submarine oil and gas. In addition to the advantages of ordinary ball valves such as low fluid resistance, rapid opening and closing, and high reliability, this valve also has the characteristics of corrosion resistance, high pressure resistance, and good sealing. However, the existing conventional ROV deep sea ball valve lacks a limit structure when opening and closing, and has the defect of being unable to open and close accurately. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide an ROV deep-sea ball valve device with an automatic limit structure.

[0004] The technical solution adopted by the utility model is as follows: an ROV deep-sea ball valve device with an automatic limit structure, comprising a valve body, the valve body is provided with a flow channel for medium circulation, a ball is arranged in the flow channel, the ball is matched with a valve stem penetrating into the flow channel, the ball rotates synchronously with the valve stem and has a first open position for realizing flow of the flow channel and a first closed position for realizing closing of the flow channel,

[0005] A connecting shaft seat is fixed above the valve body, the valve stem is rotatably arranged in the connecting shaft seat and a shaft sleeve is connected to the end of the valve stem away from the ball, a first convex portion and a second convex portion extend from the outer circumference of the shaft sleeve toward the inner wall of the connecting shaft seat, and a first stopper and a second stopper are penetrated inwardly on the side wall of the connecting shaft seat,

[0006] The sleeve rotates synchronously with the valve stem and the ball, and when the ball rotates to the first open position around the first direction A, the first protrusion is located at the first limiting position against the first limit member, and the first limit member prevents the valve stem from continuing to rotate around the first direction A; when the ball rotates to the first closed position around the second direction B opposite to the first direction A, the second protrusion is located at the second limiting position against the second limit member, and the second limit member prevents the valve stem from continuing to rotate around the second direction B.

[0007] Preferably, the first limiting member and the second limiting member are adjusting screws.

[0008] Preferably, a first fixing seat and a second fixing seat are provided on the side wall of the position connection shaft seat, and a first limiting member and a second limiting member pass through the first fixing seat and the second fixing seat respectively in a horizontal direction and are threadedly engaged with the first fixing seat and the second fixing seat.

[0009] Preferably, an indicator is radially arranged on the valve stem, and an indicator disk with open and closed marks is circumferentially arranged on the connecting shaft seat. The indicator rotates synchronously with the valve stem. When the ball is in the first open position, the indicator points to the open mark, and when the ball is in the first closed position, the indicator points to the closed mark.

[0010] Preferably, the connecting shaft seat includes a connecting upper seat and a connecting lower seat, the indicator plate is located between the connecting upper seat and the connecting lower seat, the connecting upper seat and the connecting lower seat are flange-connected, the first protrusion and the second protrusion are limited to the bottom flange surface of the connecting upper seat, the indicator plate has a first connecting ring portion that is adapted to the caliber of the flange surface of the connecting upper seat and the connecting lower seat and forms a fixed fit with the two, an indicating ring surface extends outward from the outer periphery of the first connecting ring portion, and the opening and closing marks are both located on the indicating ring surface.

[0011] Preferably, an open groove is provided on the outer periphery of the connecting upper seat close to the indicator disk, and the indicator member has an indicator arrow extending out of the open groove, the indicator arrow is centered between the first convex portion and the second convex portion, and rotates on the indicator ring surface with the valve stem.

[0012] Preferably, a limiting convex ring is provided on the valve stem, and the indicator also includes a second connecting ring portion limited on the limiting convex ring.

[0013] Preferably, the first protrusion has a first abutment plane and the second protrusion has a second abutment plane. When the first protrusion is located at the first limiting position, the first abutment plane abuts against the end of the first limiting member. When the second protrusion is located at the second limiting position, the second abutment plane abuts against the end of the second limiting member.

[0014] Preferably, the first protrusion and the second protrusion are both arranged perpendicular to the axial direction of the valve stem, and when the first protrusion is located at the first limiting position, the first limiting member is perpendicular to the first protrusion, and when the second protrusion is located at the second limiting position, the second limiting member is perpendicular to the second protrusion.

[0015] Preferably, there is a right angle between the first convex portion and the second convex portion, and the first limiting member and the second limiting member are arranged in parallel.

[0016] The beneficial effects of the utility model are as follows: through the cooperation between the limit piece on the sleeve and the convex part on the valve stem, the first limit piece forms a limit when the ball valve is opened to a specified position, and the second limit piece forms a limit when the ball valve is closed to a specified position, thereby ensuring the accuracy of the opening and closing operation of the deep-sea ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0018] Figure 1 It is a three-dimensional structural diagram of an embodiment of the utility model;

[0019] Figure 2 It is an exploded structural diagram of an embodiment of the utility model;

[0020] Figure 3 This is a front cross-sectional view of an embodiment of the utility model;

[0021] Figure 4 It is a top view of an embodiment of the utility model;

[0022] Figure 5 This is a rear view of an embodiment of the utility model;

[0023] Figure 6 for Figure 3 A magnified view of the structure at center A;

[0024] In the figure, 1, valve body; 2, ball; 3, valve stem; 4, connecting shaft seat; 5, shaft sleeve; 6, indicator plate; 31, indicator member; 32, limiting convex ring; 41, first limiting member; 42, second limiting member; 43, first fixed seat; 44, second fixed seat; 45, connecting upper seat; 46, connecting lower seat; 51, first convex part; 52, second convex part; 61, first connecting ring part; 62, indicating ring surface; 311, indicating arrow; 312, second connecting ring part; 451, opening groove; 511, first abutting plane; 521, second abutting plane. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0026] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0027] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0028] like Figures 1 to 6 As shown in the figure, in the embodiment of the utility model, an ROV deep-sea ball valve device with an automatic limit structure comprises a valve body 1, the valve body 1 is provided with a flow channel for medium circulation, a ball 2 is arranged in the flow channel, the ball 2 is matched with a valve stem 3 penetrating into the flow channel, the ball 2 rotates synchronously with the valve stem 3 and has a first open position for realizing flow of the flow channel and a first closed position for realizing closing of the flow channel.

[0029] A connecting shaft seat 4 is fixed on the top of the valve body 1, and the valve stem 3 is rotatably arranged in the connecting shaft seat 4 and a shaft sleeve 5 is connected to the end thereof away from the ball 2. A first convex portion 51 and a second convex portion 52 are extended from the outer circumference of the shaft sleeve 5 toward the inner wall of the connecting shaft seat 4, and a first stopper 41 and a second stopper 42 are penetrated inwardly on the side wall of the connecting shaft seat 4.

[0030] The sleeve 5 rotates synchronously with the valve stem 3 and the ball 2, and when the ball 2 rotates to the first open position around the first direction A, the first protrusion 51 is located at the first limiting position against the first limit member 41, and the first limit member 41 prevents the valve stem 3 from continuing to rotate around the first direction A; when the ball 2 rotates to the first closed position around the second direction B opposite to the first direction A, the second protrusion 52 is located at the second limiting position against the second limit member 42, and the second limit member 42 prevents the valve stem 3 from continuing to rotate around the second direction B.

[0031] The first direction A and the second direction B are Figure 4 Through this arrangement, the first limiter forms a limit when the ball valve is opened to a specified position, and the second limiter forms a limit when the ball valve is closed to a specified position, thereby ensuring the accuracy of the opening and closing operation of the deep-sea ball valve.

[0032] The first limiter 41 and the second limiter 42 are adjusting screws. This arrangement ensures the strength of the limiter of the device on the one hand, and achieves fine adjustment of the limiter on the other hand. The angle range of the valve stem rotation can be adjusted by adjusting the screw-in length of the adjusting screw according to the actual situation of the ball valve.

[0033] The first fixing seat 43 and the second fixing seat 44 are arranged on the side wall of the position connection shaft seat 4, and the first limiting member 41 and the second limiting member 42 respectively pass through the first fixing seat 43 and the second fixing seat 44 in the horizontal direction and are threadedly engaged with them. Through this arrangement, the connection strength between the adjusting screw and the connection shaft seat is improved, thereby further improving the limiting strength of the adjusting screw on the valve stem.

[0034] An indicator 31 is radially arranged on the valve stem 3, and an indicator disk 6 with an open and closed mark is circumferentially arranged on the connecting shaft seat 4. The indicator 31 rotates synchronously with the valve stem. When the ball 2 is in the first open position, the indicator 31 points to the open mark, and when the ball 2 is in the first closed position, the indicator 31 points to the closed mark. The convenience of operation is improved by setting the indicator. Specifically, in this embodiment, "S" is set on the indicator disk to represent the closed position, and "O" represents the open position.

[0035] The connecting shaft seat 4 includes an upper connecting seat 45 and a lower connecting seat 46. The indicator plate 6 is located between the upper connecting seat 45 and the lower connecting seat 46. The upper connecting seat 45 and the lower connecting seat 46 are flange-connected. The first protrusion 51 and the second protrusion 52 are limited to the flange surface at the bottom of the upper connecting seat 45, and the rotation is more stable. The indicator plate 6 has a first connecting ring portion 61 that is adapted to the flange surface caliber of the upper connecting seat 45 and the lower connecting seat 46 and forms a fixed fit with the two. The outer periphery of the first connecting ring portion 61 extends outward with an indicator ring surface 62, and the opening and closing marks are both located on the indicator ring surface 62. Through this arrangement, the upper connecting seat, the lower connecting seat, and the indicator plate are convenient to disassemble and assemble, which is convenient for the maintenance of the ball valve. At the same time, the connection is stable, which increases the service life of the device. Specifically, in this embodiment, the lower connecting seat is a flange, which improves the convenience and applicability of the connection between the structure and the valve body, and can be flexibly replaced and matched with different valve bodies.

[0036] An opening groove 451 is provided on the outer periphery of the connecting upper seat 45 near the indicator plate 6, and the indicator member 31 has an indicator arrow 311 extending out of the opening groove 451. The indicator arrow 311 is centered between the first convex portion 51 and the second convex portion 52, and rotates on the indicator annular surface 62 along with the valve stem 3. This arrangement improves the recognition of the indicator arrow indication.

[0037] The valve stem 3 is provided with a limiting convex ring 32, and the indicator 31 also includes a second connecting ring portion 312 limited on the limiting convex ring 32. This arrangement improves the convenience of disassembly and assembly between the indicator and the valve stem and the stability of the connection between the two. The limiting convex ring can be directly processed on the valve stem, or it can be as shown in FIG. Figure 3 and Figure 6 As shown, in this embodiment, a method of processing a limiting groove or a limiting step and installing a clamping ring is adopted, which further improves the convenience of assembly and the connection stability.

[0038] The first convex portion 51 has a first abutting plane 511, and the second convex portion 52 has a second abutting plane 521. When the first convex portion 51 is located at the first limiting position, the first abutting plane 511 abuts against the end of the first position-limiting member 41, and when the second convex portion 52 is located at the second limiting position, the second abutting plane 521 abuts against the end of the second position-limiting member 42. Through this arrangement, the plane fit is higher and the stability of the abutting and limiting structure is further improved.

[0039] The first convex portion 51 and the second convex portion 52 are both arranged perpendicular to the axial direction of the valve stem 3. When the first convex portion 51 is located at the first limiting position, the first limiting member 41 is perpendicular to the first convex portion 51, and when the second convex portion 52 is located at the second limiting position, the second limiting member 42 is perpendicular to the second convex portion 52. With this arrangement, when in place, the convex portion is perpendicular to the limiting member, thereby forming a surface-to-surface fit between the limiting surface and the end surface of the convex portion, further improving the stability of the abutting limiting structure.

[0040] There is a right angle between the first convex portion 51 and the second convex portion 52, and the first stopper 41 and the second stopper 42 are arranged in parallel. With this arrangement, the right angle between the first and second convex portions meets the rotation angle of most deep-sea ball valves, and the right angle and the parallel arrangement between the stoppers facilitate processing and production.

[0041] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An ROV deep-sea ball valve device with an automatic limit structure, comprising a valve body (1), the valve body (1) being provided with a flow channel for medium circulation, a ball (2) being arranged in the flow channel, the ball (2) being matched with a valve stem (3) penetrating into the flow channel, the ball (2) rotating synchronously with the valve stem (3) and having a first open position for realizing flow of the flow channel and a first closed position for realizing closing of the flow channel, characterized in that: A connecting shaft seat (4) is fixed above the valve body (1); the valve stem (3) is rotatably arranged in the connecting shaft seat (4) and the end of the valve stem (3) away from the ball (2) is connected to a shaft sleeve (5); a first convex portion (51) and a second convex portion (52) are extended from the outer circumference of the shaft sleeve (5) in the direction of the inner wall of the connecting shaft seat (4); a first stopper (41) and a second stopper (42) are penetrated inwardly through the side wall of the connecting shaft seat (4); The shaft sleeve (5) rotates synchronously with the valve stem (3) and the ball (2), and when the ball (2) rotates around the first direction (A) to the first open position, the first convex portion (51) is located at a first limiting position abutting against the first limiting member (41), and the first limiting member (41) prevents the valve stem (3) from continuing to rotate around the first direction (A); when the ball (2) rotates around a second direction (B) opposite to the first direction (A) to the first closed position, the second convex portion (52) is located at a second limiting position abutting against the second limiting member (42), and the second limiting member (42) prevents the valve stem (3) from continuing to rotate around the second direction (B).

2. The ROV deep-sea ball valve device with an automatic limit structure according to claim 1, characterized in that: The first limiting member (41) and the second limiting member (42) are adjusting screws.

3. The ROV deep-sea ball valve device with an automatic limit structure according to claim 2, characterized in that: A first fixing seat (43) and a second fixing seat (44) are provided on the side wall of the position connection shaft seat (4); a first limiting member (41) and a second limiting member (42) respectively pass through the first fixing seat (43) and the second fixing seat (44) in a horizontal direction and are threadedly engaged with the first fixing seat (43) and the second fixing seat (44).

4. The ROV deep-sea ball valve device with an automatic limit structure according to claim 1, characterized in that: An indicator (31) is radially arranged on the valve stem (3), and an indicator disk (6) having an opening and closing mark is circumferentially arranged on the connecting shaft seat (4). The indicator (31) rotates synchronously with the valve stem. When the ball (2) is located at the first opening position, the indicator (31) points to the opening mark. When the ball (2) is located at the first closing position, the indicator (31) points to the closing mark.

5. The ROV deep-sea ball valve device with an automatic limit structure according to claim 4, characterized in that: The connecting shaft seat (4) comprises an upper connecting seat (45) and a lower connecting seat (46); the indicating plate (6) is located between the upper connecting seat (45) and the lower connecting seat (46); the upper connecting seat (45) and the lower connecting seat (46) are flange-connected; the first convex portion (51) and the second convex portion (52) are limitedly located on the bottom flange surface of the upper connecting seat (45); the indicating plate (6) comprises a first connecting ring portion (61) adapted to the caliber of the flange surfaces of the upper connecting seat (45) and the lower connecting seat (46) and forming a fixed fit with the two; an indicating ring surface (62) extends outwardly from the outer circumference of the first connecting ring portion (61); and both opening and closing marks are located on the indicating ring surface (62).

6. The ROV deep-sea ball valve device with an automatic limit structure according to claim 5, characterized in that: An opening groove (451) is provided on the outer periphery of the connecting upper seat (45) on a side close to the indicator disk (6), and the indicator member (31) has an indicating arrow (311) extending out of the opening groove (451). The indicating arrow (311) is centered between the first convex portion (51) and the second convex portion (52), and rotates on the indicating annular surface (62) along with the valve stem (3).

7. The ROV deep-sea ball valve device with an automatic limit structure according to claim 5, characterized in that: The valve stem (3) is provided with a limiting convex ring (32), and the indicator (31) further comprises a second connecting ring portion (312) limited on the limiting convex ring (32).

8. The ROV deep-sea ball valve device with an automatic limit structure according to claim 1, characterized in that: The first convex portion (51) has a first abutting plane (511), and the second convex portion (52) has a second abutting plane (521); when the first convex portion (51) is located at a first limiting position, the first abutting plane (511) abuts against an end portion of a first limiting member (41); and when the second convex portion (52) is located at a second limiting position, the second abutting plane (521) abuts against an end portion of a second limiting member (42).

9. The ROV deep-sea ball valve device with an automatic limit structure according to claim 8, characterized in that: The first convex portion (51) and the second convex portion (52) are both arranged perpendicularly to the axial direction of the valve stem (3); when the first convex portion (51) is located at a first limiting position, the first limiting member (41) is perpendicular to the first convex portion (51); and when the second convex portion (52) is located at a second limiting position, the second limiting member (42) is perpendicular to the second convex portion (52).

10. The ROV deep-sea ball valve device with an automatic limit structure according to claim 9, characterized in that: There is a right angle between the first convex portion (51) and the second convex portion (52), and the first limiting member (41) and the second limiting member (42) are arranged in parallel.

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