Flat gate valve with emergency opening and closing function

Abstract

The utility model relates to the field of flat gate valves, and discloses a flat gate valve with an emergency opening and closing function, which comprises a valve body, a protective shell is arranged at the center of the upper end face of the valve body, connection protective structures are arranged on two side walls of the valve body, and a first gate plate is arranged at the center in the valve body. Emergency opening and closing structures are arranged at the centers of the two side walls of the first gate plate correspondingly, flowing grooves are formed in the two side walls of the valve body, one side wall of the first gate plate and one side walls of the two emergency opening and closing structures correspondingly, pressure relief electromagnetic valves are arranged at the positions, close to the upper portion and the lower portion, of the center of one side wall of the valve body correspondingly, and a protection pad is arranged at the center of the upper end face of the protection shell. A rotary lifting rod is arranged in the center of the upper end face of the first gate plate. According to the emergency valve, through the first gate plate and the emergency opening and closing structure and the quick response capacity under the emergency condition, the motor can drive the rotating rod and quickly move the second gate plate under the emergency condition, emergency opening and closing of the valve are achieved, and safe operation of a pipeline system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of parallel slide valves, in particular to a parallel slide valve with an emergency opening and closing function. Background Technique

[0002] A parallel slide valve is a common type of valve that controls the flow of fluid by the movement of one or more flat plates (gate plates) within the valve body. Parallel slide valves are typically used in applications that require full opening or closing, such as in the water treatment, petroleum, chemical, and power industries. A parallel slide valve with an emergency opening and closing function refers to a valve that can be quickly opened or closed in an emergency to respond to sudden situations, such as leaks and fires.

[0003] Since the response speed of existing parallel slide valves may be slow in an emergency, they cannot be quickly closed or opened, which may lead to serious problems in the pipeline system. In addition, the sealing performance may not be good, and leakage problems are likely to occur, affecting the safety and stability of the system. Therefore, those skilled in the art have provided a parallel slide valve with an emergency opening and closing function to solve the problems raised in the above background technique. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a parallel slide valve with an emergency opening and closing function is proposed. Through the first gate plate and the emergency opening and closing structure, the ability to quickly respond in an emergency is realized. In an emergency, the second gate plate can be quickly moved by driving the rotating rod with a motor to achieve the emergency opening and closing of the valve, ensuring the safe operation of the pipeline system. By using a valve pipe, a protective layer, a flange, and an O-ring, this structure can effectively protect the valve body and the valve pipe, extend their service life, and ensure the sealing performance of the connection part to prevent fluid leakage. The cooperation between the valve body and the protective shell ensures the stability and safety of the valve during operation, and the bolt connection facilitates disassembly for maintenance, repair, and servicing, reducing the maintenance cost.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A parallel slide valve with an emergency opening and closing function, including a valve body, a protective shell is provided at the center of the upper end surface of the valve body, connection protection structures are provided on both side walls of the valve body, a first gate plate is provided at the center of the inner part of the valve body, emergency opening and closing structures are provided at the centers of both side walls of the first gate plate, flow grooves are provided on both side walls of the valve body, one side wall of the first gate plate, and one side wall of the two emergency opening and closing structures. Pressure relief solenoid valves are provided at the upper and lower positions near the center of one side wall of the valve body, a protective pad is provided at the center of the upper end surface of the protective shell, a rotating lifting rod is provided at the center of the upper end surface of the first gate plate, and a rocker is provided at the upper position near the center of the outer side wall of the rotating lifting rod;

[0006] The two emergency opening and closing structures include two second gate plates, two rotating rods and two motors. The two second gate plates are respectively arranged at the centers of the two side walls of the first gate plate. The two rotating rods are respectively arranged at the centers of the upper end faces of the two second gate plates. The two motors are respectively arranged at the positions close to both sides of the center of the upper end face of the protective pad.

[0007] Through the above technical solutions, through the first gate plate and the emergency opening and closing structure, the ability to respond quickly in an emergency is realized. In an emergency, the rotating rod can be driven by the motor to quickly move the second gate plate, realizing the emergency opening and closing of the valve, ensuring the safe operation of the pipeline system. By using the valve pipe, protective layer, flange and O-ring, this structure can effectively protect the valve body and valve pipe, extend their service life, and ensure the sealing performance of the connection part, preventing fluid leakage. The cooperation between the valve body and the protective shell ensures the stability and safety of the valve during operation, and is convenient for disassembly through bolt connection for maintenance, repair and maintenance, reducing the maintenance cost.

[0008] Furthermore, the two connection protection structures include two valve pipes, two protective layers, two flanges and two O-rings. The two O-rings are respectively arranged inside the two flow grooves at the centers of the two side walls of the valve body. The two valve pipes are respectively arranged at the centers of one side wall of the two O-rings. The two protective layers are respectively sleeved on the inner side walls of the two valve pipes. The two flanges are respectively arranged at the positions close to one side of the centers of the outer side walls of the two valve pipes;

[0009] Through the above technical solutions, the user can connect with other pipelines through the flange. When the hydraulic pressure flows in the valve pipe, the protective layer enables the valve body to well protect the valve pipe, increasing the service life of the valve pipe. And through the setting of the O-ring, the sealing performance of the connection part is ensured, thus preventing the occurrence of fluid leakage.

[0010] Furthermore, the output ends of the two motors respectively pass through the upper end face of the protective pad and the upper end face of the protective shell in sequence and lead to the inside of the protective shell, and the ends are rotatably connected to one end of the two rotating rods;

[0011] Through the above technical solutions, the opening and closing actions of the second gate plate can be quickly controlled, ensuring the stability and reliability of the emergency opening and closing operation, and improving the response speed and accuracy of the valve.

[0012] Furthermore, the valve body and the protective shell are connected by a plurality of bolts;

[0013] Through the above technical solutions, the bolt connection structure provides a firm connection between the valve body and the protective shell, ensuring the stability and safety of the valve during operation, and is convenient for disassembly for maintenance, repair and maintenance.

[0014] Furthermore, the materials of the two O-rings are both rubber;

[0015] Through the above technical solution, the rubber O-ring has good wear resistance and corrosion resistance, can maintain a stable sealing effect for a long time, extends the service life of the valve, and reduces the maintenance cost.

[0016] Furthermore, four connection ports are arranged in an annular array on one side wall of each of the two flanges;

[0017] Through the above technical solution, it is used to connect other pipelines or equipment, ensuring the connectivity and stability of the pipeline system.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, in the flat gate valve with an emergency opening and closing function, through the first gate plate and the emergency opening and closing structure, the ability to quickly respond in an emergency is realized. In an emergency, the rotating rod can be driven by a motor to quickly move the second gate plate, realizing the emergency opening and closing of the valve, and ensuring the safe operation of the pipeline system.

[0020] 2. In the utility model, by using the valve pipe, protective layer, flange and O-ring, this structure can effectively protect the valve body and valve pipe, extend their service life, and ensure the sealing performance of the connection part, preventing fluid leakage.

[0021] 3. In the utility model, through the cooperation of the valve body and the protective shell, the stability and safety of the valve during operation are ensured, and it is convenient to disassemble through bolt connection for maintenance, repair and overhaul, reducing the maintenance cost. Brief Description of the Drawings

[0022] Figure 1 is a perspective view of a flat gate valve with an emergency opening and closing function proposed by the utility model;

[0023] Figure 2 is a front cross-sectional view of a flat gate valve with an emergency opening and closing function proposed by the utility model;

[0024] Figure 3 is a side cross-sectional view of a flat gate valve with an emergency opening and closing function proposed by the utility model;

[0025] Figure 4 is Figure 2 an enlarged schematic view of part A in

[0026] Legend Explanation:

[0027] 1. Valve body; 2. Protective shell; 3. Connection protection structure; 301. Valve pipe; 302. Protective layer; 303. Flange; 304. O-ring gasket; 4. First gate plate; 5. Flow channel; 6. Emergency opening and closing structure; 601. Second gate plate; 602. Rotating rod; 603. Motor; 7. Pressure relief solenoid valve; 8. Protective pad; 9. Rotating lifting rod; 10. Rocker. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Refer to Figures 1-4 , an embodiment provided by the present invention: a flat gate valve with an emergency opening and closing function, including a valve body 1, a protective shell 2 is provided at the center of the upper end surface of the valve body 1, connection protection structures 3 are provided on both side walls of the valve body 1, a first gate plate 4 is provided at the center of the interior of the valve body 1, emergency opening and closing structures 6 are provided at the centers of both side walls of the first gate plate 4, flow channels 5 are provided on both side walls of the valve body 1, one side wall of the first gate plate 4 and one side wall of the two emergency opening and closing structures 6, pressure relief solenoid valves 7 are provided at the upper and lower positions near the center of one side wall of the valve body 1, a protective pad 8 is provided at the center of the upper end surface of the protective shell 2, a rotating lifting rod 9 is provided at the center of the upper end surface of the first gate plate 4, and a rocker 10 is provided at the upper position near the center of the outer side wall of the rotating lifting rod 9. When operating normally, the staff rotates the rocker 10 to drive the rotating lifting rod 9 to rotate, so that the rotating lifting rod 9 drives the first gate plate 4 to lift and lower. The first gate plate 4 in the valve body 1 is opened or closed as needed to control the flow of fluid in the flow channel 5. When an emergency occurs, the emergency opening and closing structure 6 can intervene immediately to quickly close or open the flow channel 5 to prevent or restore the flow of fluid. And the function of the pressure relief solenoid valve 7 is to quickly release the pressure in the valve body 1 when needed to ensure safety. The valve body 1 and the protective shell 2 are connected by a plurality of bolts. The bolt connection structure provides a firm connection between the valve body 1 and the protective shell 2, ensuring the stability and safety of the valve during operation, and facilitating disassembly for maintenance, repair and maintenance.

[0030] The two emergency opening and closing structures 6 include two second gate plates 601, two rotating rods 602 and two motors 603. The two second gate plates 601 are respectively arranged at the centers of the two side walls of the first gate plate 4. The two rotating rods 602 are respectively arranged at the centers of the upper end faces of the two second gate plates 601. The two motors 603 are respectively arranged at the positions close to both sides of the center of the upper end face of the protective pad 8. In case of emergency, by starting the motors 603, the motors 603 drive the rotating rods 602 to rotate, so that the second gate plates 601 move quickly, thereby realizing the emergency opening and closing of the valve. This design can quickly respond to emergencies and ensure the safe operation of the pipeline system. The output ends of the two motors 603 respectively penetrate through the upper end face of the protective pad 8 and the upper end face of the protective shell 2 and lead to the inside of the protective shell 2, and the ends are rotatably connected to one end of the two rotating rods 602, thereby realizing the quick control of the opening and closing actions of the second gate plates 601, ensuring the stability and reliability of the emergency opening and closing operation, and improving the response speed and accuracy of the valve.

[0031] The two connection protection structures 3 include two valve pipes 301, two protective layers 302, two flanges 303 and two O-ring gaskets 304. The two O-ring gaskets 304 are respectively arranged inside the two flow grooves 5 at the centers of the two side walls of the valve body 1. The two valve pipes 301 are respectively arranged at the centers of one side wall of the two O-ring gaskets 304. The two protective layers 302 are respectively sleeved on the inner side walls of the two valve pipes 301. The two flanges 303 are respectively arranged at the positions close to one side of the centers of the outer side walls of the two valve pipes 301. Users connect with other pipelines through the flanges 303. When the hydraulic pressure flows in the valve pipes 301, the protective layers 302 enable the valve body 1 to well protect the valve pipes 301, so that the service life of the valve pipes 301 is increased. And through the setting of the O-ring gaskets 304, the sealing performance of the connection part is ensured, thereby preventing the occurrence of fluid leakage. The materials of the two O-ring gaskets 304 are both rubber. The rubber O-ring gaskets 304 have good wear resistance and corrosion resistance, can maintain a stable sealing effect for a long time, extend the service life of the valve, reduce the maintenance cost. Four connection ports are arranged in a circular arrangement on one side wall of each of the two flanges 303 for connecting other pipelines or equipment, ensuring the connectivity and stability of the pipeline system.

[0032] Working principle: During normal operation, the user connects to other pipelines through the flange 303. When hydraulic fluid flows in the valve pipe 301, the protective layer 302 enables the valve body 1 to protect the valve pipe 301 well, increasing the service life of the valve pipe 301. And through the setting of the O-ring 304, the sealing performance of the connection part is ensured, thus preventing fluid leakage. The staff rotates the rocker 10, which drives the rotating lifting rod 9 to rotate, and the rotating lifting rod 9 drives the first gate plate 4 to lift. The first gate plate 4 in the valve body 1 is opened or closed as needed to control the flow of fluid in the flow groove 5. When an emergency occurs, the motor 603 is started, and the motor 603 drives the rotating rod 602 to rotate, so that the second gate plate 601 moves quickly, thereby realizing the emergency opening and closing of the valve. This design can quickly respond to emergencies, ensure the safe operation of the pipeline system, quickly close or open the flow groove 5 to block or resume the flow of fluid, and the pressure relief solenoid valve 7 is used to quickly release the pressure in the valve body 1 when needed to ensure safety.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flat gate valve with emergency opening and closing function, comprising a valve body (1), characterized in that: A protective shell (2) is provided at the center of the upper end face of the valve body (1), and connecting protective structures (3) are provided on both side walls of the valve body (1). A first gate plate (4) is provided at the center of the interior of the valve body (1), and emergency opening and closing structures (6) are provided at the centers of both side walls of the first gate plate (4). Flow grooves (5) are provided on both side walls of the valve body (1), one side wall of the first gate plate (4), and one side wall of the two emergency opening and closing structures (6). Pressure relief solenoid valves (7) are provided at the upper and lower centers of one side wall of the valve body (1). A protective pad (8) is provided at the center of the upper end face of the protective shell (2). A rotating lifting rod (9) is provided at the center of the upper end face of the first gate plate (4), and a rocker (10) is provided at the upper center of the outer side wall of the rotating lifting rod (9); The two emergency opening and closing structures (6) include two second gate plates (601), two rotating rods (602) and two motors (603). The two second gate plates (601) are respectively arranged at the center of the two side walls of the first gate plate (4), the two rotating rods (602) are respectively arranged at the center of the upper end surfaces of the two second gate plates (601), and the two motors (603) are respectively arranged at the two sides of the center of the upper end surface of the protective pad (8).

2. A flat gate valve with emergency opening and closing function according to claim 1, characterized in that: The two connection protection structures (3) include two valve tubes (301), two protection layers (302), two flanges (303) and two O-ring pads (304). The two O-ring pads (304) are respectively arranged inside two flow grooves (5) at the center of the two side walls of the valve body (1). The two valve tubes (301) are respectively arranged at the center of one side wall of the two O-ring pads (304). The two protection layers (302) are respectively sleeved on the inner side walls of the two valve tubes (301). The two flanges (303) are respectively arranged at one side of the center of the outer side walls of the two valve tubes (301).

3. A flat gate valve with emergency opening and closing function according to claim 1, characterized in that: The output ends of the two motors (603) respectively penetrate the upper end surface of the protective pad (8) and the upper end surface of the protective shell (2) in sequence to the inside of the protective shell (2), and the ends are rotatably connected to one end of the two rotating rods (602).

4. The flat gate valve with emergency opening and closing function according to claim 1 is characterized in that: The valve body (1) and the protective shell (2) are connected via a plurality of bolts.

5. The flat gate valve with emergency opening and closing function according to claim 2 is characterized in that: The two O-shaped pads (304) are both made of rubber.

6. The flat gate valve with emergency opening and closing function according to claim 2 is characterized in that: One side wall of the two flanges (303) is provided with four connection ports arranged in a circular shape.

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