Controllable valve

Abstract

The utility model discloses a controllable valve which comprises a movable door and a pushing piece. One end of the movable door is rotatably connected with the connecting channel; the fixed position of the shell is installed in the second isolation space, a sliding channel is arranged in the shell, the first end of the shell is provided with an opening allowing the first end of the push rod to stretch in and out, the second end of the shell is used for being communicated with an actuating pressure source, and the piston is slidably arranged in the sliding channel and connected with the second end of the push rod. The spring is arranged between the inner side of the first end of the shell and the piston. The air source pushes the piston to move, and the push rod also moves and is used for pushing the movable door; under the action of the push rod, the movable door can be pushed to overcome pressure to close the movable door or adjust the opening degree of the movable door; the whole control over the movable door is achieved through mechanical equipment, no electronic equipment is involved, and when media are flammable and explosive, no safety risk is generated.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel transmission equipment, and more particularly to a controllable valve. Background Technology

[0002] In fuel-powered aircraft, there are usually multiple fuel tanks. During the use of fuel, it is necessary to transfer fuel between multiple tanks. During the transfer of fuel, it may be necessary to control the on / off state and the opening degree of the fuel transfer. Most existing technologies use electronically controlled valves to achieve this. However, in the fuel transfer scenario, the use of electricity will undoubtedly increase safety risks and may lead to the occurrence of safety risks.

[0003] Therefore, it is necessary to develop a controllable valve to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to design a controllable door to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A controllable valve, comprising:

[0007] A movable door for opening and closing a connecting channel; one end of the movable door is rotatably connected to the connecting channel, which connects a first isolation space and a second isolation space, and is used to transmit a medium from the first isolation space to the second isolation space;

[0008] The pusher component includes a housing, a spring, a push rod, and a piston. The housing is fixedly installed in the second isolation space. A sliding channel is provided inside the housing. The first end of the housing has an opening for the first end of the push rod to extend into and out. The second end of the housing is used to connect to an actuating pressure source. The piston is slidably placed in the sliding channel and connected to the second end of the push rod. The spring is placed inside the first end of the housing and between the piston and the piston. The push rod is configured such that when the movable door closes the connecting channel, the first end of the push rod extends out and abuts against the side of the movable door near the second isolation space, and does not obstruct when the movable door is open.

[0009] In this application, a piston is moved by a pneumatic source, and a push rod also moves to push the movable door. When the push rod does not act on the movable door, the medium will push the movable door open under pressure and be transmitted along the first isolation space to the second isolation space. Under the action of the push rod, the movable door can be pushed to overcome the pressure and close the movable door or adjust the opening degree of the movable door. The entire control of the movable door is mechanical equipment without the intervention of electronic equipment. When the medium is flammable or explosive, there is no safety risk. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present application;

[0011] Figure 2 This is a perspective view (top view) of this application;

[0012] Figure 3 This is a cross-sectional view of this application;

[0013] Figure 4 This is a schematic diagram of the connector structure in this application;

[0014] Figure 5 This is a schematic diagram of the mounting base in this application;

[0015] In the diagram: 1. Connecting channel; 1-1. Flange; 1-2. Connecting seat; 2. Movable door; 3. Rotating shaft; 4. Mounting seat; 4-1. Connecting plate; 4-2. U-shaped frame; 4-3. Connecting block; 4-4. Mounting hole; 5. Pushing component; 5-1. Housing; 5-2. Spring; 5-3. Push rod; 5-4. Piston; 6. Connecting pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figure 1-5 As shown, a controllable valve, installed in flight equipment, includes:

[0024] The movable door 2 is used to open and close the connecting channel 1; the upper end of the movable door 2 is rotatably connected to the connecting channel 1 via a pivot 3. The connecting channel 1 connects the first oil tank (or an oil pipeline) and the second oil tank, and is used to transfer fuel from the first oil tank to the second oil tank.

[0025] Pushing component 5; Pushing component 5 includes housing 5-1, spring 5-2, push rod 5-3, and piston 5-4. Housing 5-1 is fixedly installed inside the second oil tank. A sliding channel is provided inside housing 5-1. The first end of housing 5-1 is provided with an opening for the first end of push rod 5-3 to extend into and out. The second end of housing 5-1 is used to connect to the actuation pressure source. Piston 5-4 is slidably placed in the sliding channel. Piston 5-4 is connected to the second end of push rod 5-3. Spring 5-2 is placed inside the first end of housing 5-1 and between it and piston 5-4. Push rod 5-3 is configured such that when the movable door 2 closes the connecting channel 1, the first end of push rod 5-3 extends and abuts against the side of movable door 2 near the second oil tank, and does not obstruct when movable door 2 is open.

[0026] like Figure 1 and4 As shown, in some embodiments, the connecting channel 1 includes a flange 1-1 and a connecting seat 1-2. The connecting seat 1-2 is formed into a tubular structure. The flange 1-1 is installed on the outer wall of the first end of the connecting seat 1-2. The movable door 2 is used to open and close the second end of the connecting seat 1-2.

[0027] like Figure 1 and 2 As shown in Figure 5, in some embodiments, the controllable valve further includes a mounting base 4, the first end of which is connected to the flange 1-1, and the housing 5-1 is fixedly mounted on the second end of the mounting base 4.

[0028] like Figure 5 As shown, in some embodiments, the mounting base 4 includes a connecting plate 4-1, a U-shaped frame 4-2, and a connecting block 4-3. The connecting plate 4-1 is mounted on the end face of the flange 1-1. The open end of the U-shaped frame 4-2 is connected to the connecting plate 4-1. The connecting base 1-2 is placed inside the U-shaped frame 4-2. The connecting block 4-3 is mounted in the middle of the bottom end of the U-shaped frame 4-2, and a mounting hole 4-4 is provided on the connecting block 4-3. The second end of the outer shell 5-1 is mounted on the first end of the connecting block 4-3, and the second end of the outer shell 5-1 is connected to the first end of the mounting hole 4-4.

[0029] like Figure 1-3 As shown, the controllable valve also includes a connecting pipe 6, the first end of which is threadedly connected to the second end of the mounting hole 4-4, and the second end of the connecting pipe 6 is connected to the actuation pressure source.

[0030] like Figure 3 As shown, in some embodiments, when the movable door 2 closes the connecting channel 1, the movable door 2 is perpendicular to the push rod 5-3.

[0031] In some embodiments, the pressure source can be connected to a pressure pipeline that supplies oil to the engine, where the oil itself is pressurized and can be used as the power to push the sliding mechanism; in addition, a pressure control valve can be installed on the pipeline used to transmit the pressurized oil source to regulate the pressure acting on the piston 5-4, thereby controlling the opening or closing or the degree of opening of the movable door 2; it should be noted that the pressure control valve needs to be located outside the second oil tank, and because it is located outside the second oil tank, an electronic valve can be used.

[0032] During installation, it should be noted that flange 1-1 can be installed on the inner wall of the second oil tank, with an opening in the inner wall of the second oil tank connecting externally to the first oil tank (or an oil pipeline), and internally to connecting seat 1-2. Alternatively, flange 1-1 can be installed on the first oil tank (or an oil pipeline), with an opening in the inner wall of the second oil tank connecting externally to the first oil tank (or an oil pipeline), and connecting seat 1-2 and its movable door 2 located inside the second oil tank.

[0033] In operation, the pressure source acts on one side of the piston 5-4 via the connecting pipe 6 and the mounting hole 4-4 on the connecting block 4-3. Under pressure, the piston 5-4 compresses the spring 5-2 and moves forward. The push rod 5-3 connected to the piston 5-4 then pushes forward to act on the movable door 2. When the movable door 2 needs to be closed, the push rod 5-3 pushes the movable door 2 until it fits against the end of the connecting seat 1-2, thus closing the connecting channel 1. When the movable door 2 needs to be partially opened, the relationship between the pressure input of the pressure source, the elasticity of the spring 5-2, and the force exerted by the delivered fuel on the other side of the movable door 2 can be adjusted. When the movable door 2 needs to be fully opened, the pressure source input can be directly turned off.

[0034] The innovation of this application also lies in the fact that it eliminates the need for an additional pressure source, thus simplifying the aircraft structure.

[0035] In this application, when the rotation of the movable door malfunctions, the movable door may not be able to close properly. In this case, the movable door can be forcibly closed by the action of the pusher 5.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A controllable valve, characterized in that, include: A movable door used for opening and closing connecting passageways; One end of the movable door is rotatably connected to the connecting channel, which connects the first isolation space and the second isolation space and is used to transmit the medium from the first isolation space to the second isolation space; The pusher component includes a housing, a spring, a push rod, and a piston. The housing is fixedly installed in the second isolation space. A sliding channel is provided inside the housing. The first end of the housing has an opening for the first end of the push rod to extend into and out. The second end of the housing is used to connect to an actuating pressure source. The piston is slidably placed in the sliding channel and connected to the second end of the push rod. The spring is placed inside the first end of the housing and between the piston and the piston. The push rod is configured such that when the movable door closes the connecting channel, the first end of the push rod extends out and abuts against the side of the movable door near the second isolation space, and does not obstruct when the movable door is open.

2. The controllable valve according to claim 1, characterized in that, The connection channel includes a flange and a connecting seat. The connecting seat is formed into a tubular structure. The flange is installed on the outer wall of the first end of the connecting seat. The movable door is used to open and close the second end of the connecting seat.

3. A controllable valve according to claim 2, characterized in that, The controllable valve also includes a mounting base, the first end of which is connected to a flange, and the outer casing is fixedly mounted on the second end of the mounting base.

4. A controllable valve according to claim 3, characterized in that, The mounting base includes a connecting plate, a U-shaped frame, and a connecting block. The connecting plate is mounted on the end face of the flange. The open end of the U-shaped frame is connected to the connecting plate. The connecting base is placed inside the U-shaped frame. The connecting block is mounted in the middle of the bottom end of the U-shaped frame and has a mounting hole. The second end of the outer shell is mounted on the first end of the connecting block and is connected to the first end of the mounting hole.

5. A controllable valve according to claim 4, characterized in that, The controllable valve also includes a connecting pipe, the first end of which is connected to the second end of the mounting hole, and the second end of the connecting pipe is connected to the actuation pressure source.

6. A controllable valve according to claim 1, characterized in that, When the sliding door closes the connecting passage, the sliding door is perpendicular to the push rod.

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