Remote emergency shutoff device for ball valve

Abstract

The utility model relates to the technical field of ball valve shutoff, and provides a ball valve remote emergency shutoff device which comprises a roller shaft support, a vertical plate is fixed to the middle of the inner wall of the roller shaft support, and the bottom end of the vertical plate is connected with a roller frame through an angle adjusting mechanism. A first roller assembly and a second roller assembly are installed at the upper end and the lower end of the roller frame respectively, a steel wire rope is wound between the first roller assembly and the second roller assembly, a hook is connected to the bottom end of the steel wire rope and used for being hung on a valve handle, and a pull ring is fixed to the top end of the steel wire rope. When discharging operation is carried out on high and low point wells of an existing apron pipe network at present, an operator needs to manually close the operating ball valve to cut off oil in special situations, and the operating ball valve can be remotely closed only by pulling the pull ring in the special situations, so that the situation of large-area running, overflowing and leakage of the apron is avoided, and the working efficiency is improved. Meanwhile, operators do not need to make direct contact with oil, the structure is simple, use is convenient, and practicability is high.

Description

Technical Field

[0001] This application relates to the field of ball valve shut-off technology, and in particular to a remote emergency shut-off device for a ball valve. Background Technology

[0002] According to the relevant requirements of the Civil Aviation Fuel Quality Control and Operating Procedures MH / T6020: "The low-point of the apron piping system should be thoroughly flushed at high speed under pressure at least once a week to ensure that all moisture or impurities are flushed away until a clean sample is obtained."

[0003] If a hose bursts or a connector comes loose during the discharge process, and the operators cannot shut off the oil line in time, it will cause a large-scale oil spill on the apron.

[0004] Therefore, a remote emergency shut-off device for ball valves is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this application provides a remote emergency shut-off device for ball valves.

[0006] The ball valve remote emergency shut-off device provided in this application adopts the following technical solution:

[0007] A remote emergency shut-off device for a ball valve includes a roller shaft bracket. A vertical plate is fixed at the center of the inner wall of the roller shaft bracket. A roller frame is connected to the bottom end of the vertical plate through an angle adjustment mechanism. A first roller assembly and a second roller assembly are respectively installed at the upper and lower ends of the roller frame. A steel wire rope is wound between the first roller assembly and the second roller assembly. A hook is connected to the bottom end of the steel wire rope for hanging on the valve handle. A pull ring is fixed to the top end of the steel wire rope for pulling the steel wire rope.

[0008] Preferably, the roller shaft support is arc-shaped and includes two mutually perpendicular arc-shaped plates.

[0009] Preferably, the angle adjustment mechanism includes a fixed roller welded to the side wall of the vertical plate and two mounting plates welded to the side wall of the roller frame. The two mounting plates are located on the upper and lower sides of the fixed roller, respectively, and the fixed roller is connected to the two mounting plates by bolts and fixing nuts.

[0010] Preferably, the first roller assembly and the second roller assembly have the same structure, each including two roller bodies, and the wire rope passes through the surfaces of the two roller bodies in sequence.

[0011] Preferably, the entire device is made of aluminum alloy.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] In this invention, the roller shaft bracket, the first roller assembly, the second roller assembly, and other structures allow for remote closure of the ball valve by simply pulling the pull ring in special circumstances, preventing large-scale leaks on the apron. Furthermore, it eliminates the need for operators to directly contact the oil. The design is simple, convenient, and highly practical. Attached Figure Description

[0014] Figure 1 This is a side view of a ball valve remote emergency shut-off device according to this application;

[0015] Figure 2 This is a perspective view of a ball valve remote emergency shut-off device according to this application;

[0016] Figure 3 This is an enlarged view of point A of a remote emergency shut-off device for a ball valve according to this application.

[0017] Explanation of reference numerals in the attached drawings: 1. Roller shaft bracket; 2. Vertical plate; 3. Angle adjustment mechanism; 31. Mounting plate; 32. Fixed roller; 33. Fixed nut; 4. First roller assembly; 5. Second roller assembly; 6. Roller frame; 7. Wire rope; 8. Pull ring; 9. Hook. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] like Figures 1-3 As shown, this application discloses a remote emergency shut-off device for a ball valve, including a roller shaft bracket 1. A vertical plate 2 is fixed at the middle of the inner wall of the roller shaft bracket 1. The bottom end of the vertical plate 2 is connected to a roller frame 6 through an angle adjustment mechanism 3. A first roller assembly 4 and a second roller assembly 5 are respectively installed at the upper and lower ends of the roller frame 6. A steel wire rope 7 is wound between the first roller assembly 4 and the second roller assembly 5. A hook 9 is connected to the bottom end of the steel wire rope 7 for hanging on the valve handle. A pull ring 8 is fixed to the top end of the steel wire rope 7 for pulling the steel wire rope 7.

[0021] The roller shaft bracket 1 is arc-shaped and includes two mutually perpendicular arc-shaped plates. The arc size of the roller shaft bracket 1 is the same as that of the well plug cover, allowing the equipment to be installed conveniently and quickly using the well plug cover slot.

[0022] The angle adjustment mechanism 3 includes a fixed roller 32 welded to the side wall of the vertical plate 2 and two mounting plates 31 welded to the side wall of the roller frame 6. The two mounting plates 31 are located on the upper and lower sides of the fixed roller 32, respectively. The fixed roller 32 and the two mounting plates 31 are connected by bolts and fixing nuts 33, so that the roller frame 6 can rotate around the fixed roller 32 in a small range and automatically adjust the angle.

[0023] The first roller assembly 4 and the second roller assembly 5 have the same structure, both including two roller bodies. The steel wire rope 7 passes through the surface of the two roller bodies in sequence, thereby guiding the steel wire rope 7. The whole device is made of aluminum alloy, which is lightweight and has high strength.

[0024] Working principle: When in use, the roller shaft bracket 1 is installed in the well plug cover groove. One end of the hook 9 is connected to the valve handle of our low-point drainage well. The operator pulls the pull ring 8 at the other end of the wire rope 7. In case of emergency, the operator pulls the pull ring 8 to move the wire rope 7, which in turn drives the hook 9 to pull the valve handle, thereby closing the valve.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A remote emergency shut-off device for a ball valve, characterized in that: The system includes a roller shaft bracket (1), a vertical plate (2) fixed in the middle of the inner wall of the roller shaft bracket (1), a roller frame (6) connected to the bottom end of the vertical plate (2) through an angle adjustment mechanism (3), a first roller assembly (4) and a second roller assembly (5) respectively installed at the upper and lower ends of the roller frame (6), a steel wire rope (7) wound between the first roller assembly (4) and the second roller assembly (5), a hook (9) connected to the bottom end of the steel wire rope (7) for hanging on the valve handle, and a pull ring (8) fixed to the top end of the steel wire rope (7) for pulling the steel wire rope (7).

2. The ball valve remote emergency shut-off device according to claim 1, characterized in that: The roller shaft support (1) is arc-shaped and includes two mutually perpendicular arc plates.

3. The ball valve remote emergency shut-off device according to claim 1, characterized in that: The angle adjustment mechanism (3) includes a fixed roller (32) welded to the side wall of the vertical plate (2) and two mounting plates (31) welded to the side wall of the roller frame (6). The two mounting plates (31) are located on the upper and lower sides of the fixed roller (32) respectively. The fixed roller (32) and the two mounting plates (31) are connected by bolts and fixing nuts (33).

4. The ball valve remote emergency shut-off device according to claim 1, characterized in that: The first roller assembly (4) and the second roller assembly (5) have the same structure, both including two roller bodies, and the wire rope (7) passes through the surfaces of the two roller bodies in sequence.

5. A remote emergency shut-off device for a ball valve according to claim 1, characterized in that: The entire device is made of aluminum alloy.

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