Stop valve with pre-pressure-relief function

Abstract

The utility model belongs to the technical field of stop valves, and particularly relates to a stop valve with a pre-decompression function, which comprises a mounting rack, a stop valve body is fixedly mounted on the top surface of the mounting rack, and a decompression pipe is fixedly mounted on the stop valve body; the valve is arranged on the pressure relief pipe, a valve rod is arranged on the valve, a hand wheel is fixedly installed at the bottom end of the valve rod, when the air pressure sensor detects that the air pressure in the stop valve body exceeds a preset threshold value, the single-chip microcomputer starts the motor, the motor drives the rotating shaft to rotate, and when the rotating shaft rotates, the valve rod is driven to rotate. A first movable rod, a fixed seat and a second movable rod are matched to push a movable table to move, when the movable table moves, a second connecting column, a connecting rod and a first connecting column are matched to drive a hand wheel to rotate to open a valve, at the moment, gas in the stop valve body is discharged through a pressure relief pipe, and therefore automatic pressure relief of the stop valve body is achieved; the safety of the stop valve body in use is enhanced, and the stop valve is practical.

Description

Technical Field

[0001] This utility model belongs to the field of gate valve technology, and in particular relates to a gate valve with a pre-pressure relief function. Background Technology

[0002] A gate valve, also known as a stop valve, is a type of forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force a leak-proof seal.

[0003] However, due to the imprecise and easily damaged pressure relief function of current gate valves, when the gate valve is closed, the pressure of the inlet medium rises, which can easily cause overpressure in the pipeline or device upstream of the gate valve, potentially damaging the gate valve. In view of this, we propose a gate valve with a pre-pressure relief function. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a shut-off valve with a pre-pressure relief function, thereby solving the problems mentioned in the background art.

[0005] In view of this, the present invention provides a shut-off valve with a pre-pressure relief function, comprising:

[0006] Mounting bracket, the top surface of which is fixedly mounted with a shut-off valve body, and the shut-off valve body is fixedly mounted with a pressure relief pipe;

[0007] A valve is mounted on a pressure relief pipe, and a valve stem is provided on the valve. A handwheel is fixedly installed at the bottom end of the valve stem.

[0008] A first connecting post is fixedly installed on the bottom surface of the handwheel at a position away from the center. A movable platform is slidably installed on the top surface of the mounting frame. A second connecting post is fixedly installed on the top surface of the movable platform. A connecting rod is rotatably installed on the second connecting post, and one end of the connecting rod is rotatably installed on the first connecting post.

[0009] An adjustment component, mounted on a mounting frame, is used to move the movable platform. When the pressure sensor detects that the pressure inside the shut-off valve exceeds a preset threshold, the microcontroller starts the motor, which drives the rotating shaft to rotate. The rotation of the shaft, through the cooperation of the first movable rod, the fixed seat, and the second movable rod, pushes the movable platform to move. As the movable platform moves, the cooperation of the second connecting column, the connecting rod, and the first connecting column drives the handwheel to rotate, opening the valve. At this time, the gas inside the shut-off valve is discharged through the pressure relief pipe, thus achieving automatic pressure relief of the shut-off valve body. This enhances the safety of the shut-off valve body during use and is quite practical.

[0010] In the above technical solution, the adjusting component further includes two fixed blocks, which are fixedly installed on the top surface of the mounting frame. A common rotating shaft is rotatably installed between the two fixed blocks. A first movable rod is fixedly installed on the rotating shaft. A fixed seat is fixedly installed on one side of the moving platform. A second movable rod is rotatably installed inside the fixed seat. One side of the second movable rod is rotatably connected to one side of the first movable rod. When the rotating shaft rotates, the moving platform is pushed to move through the cooperation of the first movable rod, the fixed seat, and the second movable rod. When the moving platform moves, the handwheel is driven to rotate through the cooperation of the second connecting column, the connecting rod, and the first connecting column, causing the valve to open. At this time, the gas in the shut-off valve body will be discharged through the pressure relief pipe, thereby realizing the automatic pressure relief of the shut-off valve body.

[0011] In the above technical solution, a motor is further fixedly installed on one side of one of the fixing blocks, and one end of the motor output shaft is fixedly connected to one end of the rotating shaft. When the motor is started, it can drive the rotating shaft to rotate.

[0012] In the above technical solution, there are multiple first movable rods, multiple fixed seats, and multiple second movable rods. These multiple first movable rods, multiple fixed seats, and multiple second movable rods are evenly distributed at equal intervals between the moving platform and the rotating shaft. When the rotating shaft rotates, the multiple first movable rods, multiple fixed seats, and multiple second movable rods will push the moving platform to move, increasing the stability of the moving platform during movement.

[0013] In the above technical solution, a pressure sensor is further provided inside the shut-off valve body, and a microcontroller is provided on the mounting bracket. The microcontroller is electrically connected to the pressure sensor and the motor. When the pressure sensor detects that the pressure inside the shut-off valve body exceeds a preset threshold, the microcontroller will start the motor.

[0014] In the above technical solution, furthermore, multiple mounting plates are fixedly installed on both sides of the mounting bracket, and mounting holes are provided on the multiple mounting plates. By setting multiple mounting plates and multiple mounting holes, it is convenient to install and fix the mounting holes.

[0015] The beneficial effects of this utility model are:

[0016] This shut-off valve with pre-depressurization function activates a microcontroller when the pressure sensor detects that the internal pressure of the valve exceeds a preset threshold. The motor drives the rotating shaft, which in turn moves the movable platform via the cooperation of the first movable rod, the fixed seat, and the second movable rod. As the movable platform moves, the handwheel rotates via the cooperation of the second connecting column, the connecting rod, and the first connecting column, opening the valve. At this time, the gas inside the shut-off valve is discharged through the pressure relief pipe, thus achieving automatic pressure relief of the shut-off valve and enhancing the safety of the valve during use. This is quite practical. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the shut-off valve body of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model.

[0020] The markings in the diagram are as follows:

[0021] 1. Mounting bracket; 2. Shut-off valve body; 3. Pressure relief pipe; 4. Valve; 5. Valve stem; 6. Handwheel; 7. Pressure sensor; 8. Moving platform; 9. First connecting column; 10. Second connecting column; 11. Connecting rod; 12. Fixing block; 13. Rotating shaft; 14. First movable rod; 15. Fixed seat; 16. Second movable rod; 17. Motor; 18. Mounting plate; 19. Mounting hole; 20. Microcontroller. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0024] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0026] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0027] Example 1:

[0028] Please see Figures 1-3 As shown, this embodiment provides a shut-off valve with a pre-pressure relief function.

[0029] The system includes: a mounting frame 1, on which a shut-off valve body 2 is fixedly mounted, and a pressure relief pipe 3 is fixedly mounted; a valve 4, which is mounted on the pressure relief pipe 3, and has a valve stem 5, with a handwheel 6 fixedly mounted at the bottom end of the valve stem 5; a first connecting column 9, which is fixedly mounted on the bottom surface of the handwheel 6 away from the center; a movable platform 8, which is slidably mounted on the top surface of the mounting frame 1, and a second connecting column 10, on which a connecting rod 11 is rotatably mounted, with one end of the connecting rod 11 rotatably mounted on the first connecting column 9; and an adjustment assembly, which is mounted on the mounting frame 1 and used to drive... When the moving platform 8 moves, and the air pressure sensor 7 detects that the air pressure inside the shut-off valve body 2 exceeds the preset threshold, the microcontroller 20 will start the motor 17. The motor 17 will drive the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, it will push the moving platform 8 to move through the cooperation of the first movable rod 14, the fixed seat 15, and the second movable rod 16. When the moving platform 8 moves, it will drive the handwheel 6 to rotate through the cooperation of the second connecting column 10, the connecting rod 11, and the first connecting column 9, so that the valve 4 will open. At this time, the air pressure inside the shut-off valve body 2 will be discharged through the pressure relief pipe 3, thereby realizing the automatic pressure relief of the shut-off valve body 2, enhancing the safety of the shut-off valve body 2 during use, and making it more practical.

[0030] Example 2:

[0031] This embodiment provides a shut-off valve with a pre-pressure relief function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] The adjustment assembly includes two fixed blocks 12, which are fixedly installed on the top surface of the mounting bracket 1. A common rotating shaft 13 is rotatably installed between the two fixed blocks 12. A first movable rod 14 is fixedly installed on the rotating shaft 13. A fixed seat 15 is fixedly installed on one side of the moving platform 8. A second movable rod 16 is rotatably installed inside the fixed seat 15. One side of the second movable rod 16 is rotatably connected to one side of the first movable rod 14. When the rotating shaft 13 rotates, the moving platform 8 will be moved by the cooperation of the first movable rod 14, the fixed seat 15, and the second movable rod 16. When the moving platform 8 moves, the handwheel 6 will be rotated by the cooperation of the second connecting column 10, the connecting rod 11, and the first connecting column 9, so that the valve 4 is opened. At this time, the air pressure in the shut-off valve body 2 will be discharged through the pressure relief pipe 3, thereby realizing the automatic pressure relief of the shut-off valve body 2.

[0033] Example 3:

[0034] This embodiment provides a shut-off valve with a pre-pressure relief function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0035] One of the fixing blocks 12 has a motor 17 fixedly installed on one side. One end of the output shaft of the motor 17 is fixedly connected to one end of the rotating shaft 13. When the motor 17 is started, it can drive the rotating shaft 13 to rotate.

[0036] Example 4:

[0037] This embodiment provides a shut-off valve with a pre-pressure relief function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] The first movable rod 14, the fixed seat 15, and the second movable rod 16 are multiple in number. The multiple first movable rods 14, the multiple fixed seats 15, and the multiple second movable rods 16 are evenly distributed at equal intervals between the moving platform 8 and the rotating shaft 13. When the rotating shaft 13 rotates, the multiple first movable rods 14, the multiple fixed seats 15, and the multiple second movable rods 16 will push the moving platform 8 to move, increasing the stability of the moving platform 8 when it moves.

[0039] Example 5:

[0040] This embodiment provides a shut-off valve with a pre-pressure relief function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] in,

[0042] The shut-off valve body 2 is equipped with a pressure sensor 7, and the mounting bracket 1 is equipped with a microcontroller 20. The microcontroller 20 is electrically connected to the pressure sensor 7 and the motor 17. When the pressure sensor 7 detects that the pressure inside the shut-off valve body 2 exceeds the preset threshold, the microcontroller 20 will start the motor 17.

[0043] Example 6:

[0044] This embodiment provides a shut-off valve with a pre-pressure relief function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] Multiple mounting plates 18 are fixedly installed on both sides of the mounting bracket 1. Each mounting plate 18 has a mounting hole 19. By setting multiple mounting plates 18 and multiple mounting holes 19, it is convenient to install and fix the mounting holes 19.

[0046] In use: When the pressure sensor 7 detects that the pressure inside the shut-off valve body 2 exceeds the preset threshold, the microcontroller 20 will start the motor 17. The motor 17 will drive the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, it will push the moving platform 8 to move through the cooperation of the first movable rod 14, the fixed seat 15, and the second movable rod 16. When the moving platform 8 moves, it will drive the handwheel 6 to rotate through the cooperation of the second connecting column 10, the connecting rod 11, and the first connecting column 9, so that the valve 4 opens. At this time, the pressure inside the shut-off valve body 2 will be discharged through the pressure relief pipe 3, thereby realizing the automatic pressure relief of the shut-off valve body 2, enhancing the safety of the shut-off valve body 2 during use, and making it more practical.

[0047] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A shut-off valve with a pre-pressure relief function, characterized in that, include: Mounting bracket (1), the top surface of which is fixedly mounted with a shut-off valve body (2), and a pressure relief pipe (3) is fixedly mounted on the shut-off valve body (2); Valve (4), the valve (4) is installed on the pressure relief pipe (3), the valve (4) is provided with a valve stem (5), and a handwheel (6) is fixedly installed at the bottom end of the valve stem (5); The first connecting column (9) is fixedly installed on the bottom surface of the handwheel (6) at a position away from the center. The top surface of the mounting frame (1) is slidably installed with a moving platform (8). The top surface of the moving platform (8) is fixedly installed with a second connecting column (10). A connecting rod (11) is rotatably installed on the second connecting column (10). One end of the connecting rod (11) is rotatably installed on the first connecting column (9). An adjustment component is mounted on the mounting frame (1) and is used to move the mobile platform (8).

2. A shut-off valve with pre-pressure relief function according to claim 1, characterized in that, The adjustment assembly includes two fixed blocks (12), which are fixedly installed on the top surface of the mounting frame (1). The two fixed blocks (12) are rotatably mounted on the same rotating shaft (13). A first movable rod (14) is fixedly installed on the rotating shaft (13). A fixed seat (15) is fixedly installed on one side of the moving platform (8). A second movable rod (16) is rotatably installed inside the fixed seat (15). One side of the second movable rod (16) is rotatably connected to one side of the first movable rod (14).

3. A shut-off valve with pre-pressure relief function according to claim 2, characterized in that, A motor (17) is fixedly installed on one side of one of the fixed blocks (12), and one end of the output shaft of the motor (17) is fixedly connected to one end of the rotating shaft (13).

4. A shut-off valve with pre-pressure relief function according to claim 3, characterized in that, There are multiple first movable rods (14), fixed seats (15), and second movable rods (16), and these multiple first movable rods (14), multiple fixed seats (15), and multiple second movable rods (16) are evenly distributed at equal intervals between the moving platform (8) and the rotating shaft (13).

5. A shut-off valve with pre-pressure relief function according to claim 3, characterized in that, The shut-off valve body (2) is equipped with a pressure sensor (7), and the mounting bracket (1) is equipped with a microcontroller (20). The microcontroller (20) is electrically connected to the pressure sensor (7) and the motor (17).

6. A shut-off valve with pre-pressure relief function according to claim 1, characterized in that, Multiple mounting plates (18) are fixedly installed on both sides of the mounting bracket (1), and mounting holes (19) are provided on the multiple mounting plates (18).

Images