Bidirectional self-sealing valve

Abstract

The utility model relates to the technical field of valves, in particular to a bidirectional self-sealing valve which comprises a valve body, two ends of the valve body are connected with connecting pipes, one end of each connecting pipe is connected with an annular seat, an annular groove is formed in the surface of one side of each annular seat, and an installation assembly is arranged in each annular groove. An annular groove is formed in the valve body, a mounting frame is mounted in the annular groove through a mounting assembly, a connecting assembly is arranged on the surface of one side of the mounting frame, four module filtering units are mounted on the surface of one side of the mounting frame through the connecting assembly, and the module filtering units are used for filtering impurities in fluid and preventing the impurities from entering the inner sealing face of the valve body. According to the utility model, the module filtering units can be modularly mounted through the connecting assemblies, so that the valve can support the single replacement of the blocked module filtering units, and the other unblocked module filtering units can still be normally used, thereby reducing the replacement cost of the filtering parts and improving the working efficiency. And the replacement convenience of the filtering part is improved.

Description

A bidirectional self-sealing valve Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a bidirectional self-sealing valve. Background Technology

[0002] As an indispensable control element in fluid pipeline systems, valves are widely used in many fields such as power, petrochemical, metallurgy, municipal, and fire protection, playing a key role in controlling the flow of media and regulating flow and pressure. In order to meet the high-performance requirements of modern industrial pipeline systems, bidirectional self-sealing valves have emerged. They can achieve reliable sealing in both directions and effectively adapt to the bidirectional flow of media.

[0003] The bidirectional self-sealing valve proposed in patent document CN106764008B has zero wear, zero leakage, and low torque, which can meet the requirements of bidirectional sealing conditions. However, if the filter component that prevents impurities from entering the sealing surface inside the pipeline becomes partially blocked, the entire filter component needs to be replaced, which is costly. It is not possible to replace the partially blocked module of the filter component. Summary of the Invention

[0004] One objective of this application is to provide a bidirectional self-sealing valve that can effectively solve the problems in the background art described above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bidirectional self-sealing valve, comprising a valve body, with connecting pipes connected to both ends of the valve body, and an annular seat connected to one end of the connecting pipes. An annular groove is formed on one side surface of the annular seat, and an installation assembly is provided inside the annular groove. An installation frame is installed in the annular groove through the installation assembly. A connecting assembly is provided on one side surface of the installation frame, and four sets of modular filter units are installed on one side surface of the installation frame through the connecting assembly. The modular filter units are used to filter impurities in the fluid, preventing impurities from entering the internal sealing surface of the valve body.

[0006] The connecting assembly includes studs and locking nuts. The module filter unit includes a module frame, a filter screen, and a socket. Studs are symmetrically installed on one side surface of the mounting frame. Four sets of module frames are installed on one side surface of the mounting frame via studs. A socket is opened on one side surface of the module frame, and the studs pass through the socket. A locking nut is installed on the outer surface of the stud, and one side surface of the locking nut is in close contact with the module frame. A filter screen is installed on the inner side of the module frame.

[0007] Preferably, a sealing gasket is installed on the other side surface of the mounting frame.

[0008] Preferably, the annular groove has a symmetrically formed positioning groove on its arc surface, and the positioning groove is connected to one side surface of the ring seat.

[0009] Preferably, the mounting assembly includes a first positioning magnetic block, a raised locking block, a second positioning magnetic block, and a locking groove. The first positioning magnetic block is installed on the inner side wall of the positioning groove. A raised locking block is provided on one side surface of the first positioning magnetic block. The second positioning magnetic block is symmetrically installed on the outer surface of the mounting frame and is located inside the positioning groove. A locking groove is provided on one side surface of the second positioning magnetic block, and the locking groove matches the raised locking block.

[0010] Preferably, the first positioning magnetic block and the second positioning magnetic block are magnetically attracted to each other.

[0011] Preferably, a flange ring is installed on the outer surface of the ring seat, and a mounting hole is provided through one side of the flange ring.

[0012] Preferably, a valve stem is installed through the top of the valve body, and a handwheel is connected to the top of the valve stem.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model allows for modular installation of the module filter unit via connecting components. If the filter screen in any module filter unit is clogged by impurities, the operator can replace the single module filter unit by disassembling and installing the connecting components. This allows the valve to support the replacement of clogged module filter units individually, while the remaining unclogged module filter units can still be used normally, reducing the replacement cost of filter components and improving the convenience of filter component replacement.

[0015] 2. This utility model achieves the fixation of the mounting frame inside the valve by the magnetic attraction between positioning magnetic block one and positioning magnetic block two, and the locking action between the locking groove and the protruding locking block. When the entire filter component needs to be replaced, the operator can pull the mounting frame outward to separate positioning magnetic block two from positioning magnetic block one, thus separating the mounting frame from the ring seat. When installing a new mounting frame, align positioning magnetic block two with the positioning groove and push the mounting frame inward so that the locking groove on positioning magnetic block two completely locks the protruding locking block on positioning magnetic block one. This makes the replacement of the entire filter component of the valve very convenient. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of this utility model;

[0017] Figure 2 is a cross-sectional view of the ring seat structure of this utility model;

[0018] Figure 3 is a cross-sectional view of the mounting frame structure of this utility model;

[0019] Figure 4 is a top view of the mounting frame structure of this utility model;

[0020] Figure 5 is an enlarged schematic diagram of the structure at point A in Figure 2 of this utility model.

[0021] In the diagram: 1. Valve body; 2. Connecting pipe; 3. Ring seat; 4. Annular groove; 5. Positioning groove; 6. Mounting frame; 7. Sealing gasket; 8. Positioning magnetic block one; 9. Protruding locking block; 10. Positioning magnetic block two; 11. Engaging groove; 12. Stud; 13. Module frame; 14. Filter screen; 15. Insertion hole; 16. Locking nut; 17. Flange ring; 18. Mounting hole; 19. Valve stem; 20. Handwheel. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., 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.

[0025] The technical solution of this utility model will be further explained below with reference to Figures 1-5:

[0026] Please refer to Figures 1, 3, and 4. One embodiment of this utility model provides a bidirectional self-sealing valve, including a valve body 1. Connecting pipes 2 are connected to both ends of the valve body 1. One end of each connecting pipe 2 is connected to a ring seat 3. An annular groove 4 is formed on one side surface of the ring seat 3. An installation assembly is disposed inside the annular groove 4. An installation frame 6 is mounted on the annular groove 4 via the installation assembly. A connecting assembly is disposed on one side surface of the installation frame 6. Four modular filter units are mounted on one side surface of the installation frame 6 via the connecting assembly. These modular filter units are used to filter impurities in the fluid, avoiding… To prevent impurities from entering the internal sealing surface of valve body 1; the connecting assembly includes studs 12 and locking nuts 16; the modular filter unit includes a module frame 13, a filter screen 14, and a socket 15; studs 12 are symmetrically installed on one side surface of the mounting frame 6; four sets of module frames 13 are installed on one side surface of the mounting frame 6 via studs 12; a socket 15 is opened on one side surface of the module frame 13, and the studs 12 pass through the socket 15; a locking nut 16 is installed on the outer surface of the stud 12, and one side surface of the locking nut 16 is in close contact with the module frame 13; the module frame 13... A filter screen 14 is installed on the inner side, and a sealing gasket 7 is installed on the other side surface of the mounting frame 6; the valve body 1 provides an installation position for the connecting pipe 2, the connecting pipe 2 provides an installation position for the ring seat 3, the ring seat 3 provides an opening position for the annular groove 4, the annular groove 4 provides an installation position and installation space for the mounting assembly and the mounting frame 6 respectively, the mounting assembly fixes the mounting frame 6 inside the annular groove 4, the mounting frame 6 provides an installation position for the connecting assembly, the connecting assembly fixes the four sets of modular filter units to the surface of the mounting frame 6, the mounting frame 6 provides an installation position for the stud 12, and the module frame 1... 3 provides an opening position for the socket 15. By aligning the socket 15 of the module frame 13 with the stud 12, the module frame 13 can be installed on one side surface of the mounting frame 6. By installing a locking nut 16 on the outside of the stud 12 and rotating the locking nut 16, the locking nut 16 is pressed against the module frame 13, thereby fixing the module frame 13. The module frame 13 provides an installation position for the filter screen 14, which can intercept impurities. The sealing gasket 7 installed on the other side surface of the mounting frame 6 ensures the sealing between the mounting frame 6 and the ring seat 3.During the use of this bidirectional self-sealing valve, if the filter screen 14 in any of the modular filter units becomes clogged with impurities, the operator can rotate the locking nut 16 on the modular filter unit with the clogged filter screen 14 to disengage the locking nut 16 from the stud 12 on the mounting frame 6. This allows the clogged modular filter unit to be disassembled by pulling the modular frame 13 outwards. Then, the insertion hole 15 of the replacement modular frame 13 is aligned with the stud 12, and the locking nut 16 is rotated to secure the replacement modular frame 13. This achieves the replacement of the clogged modular filter unit. The mounting frame 6, through connecting components, mounts four sets of modular filter units, enabling modular installation of the valve's filter components. This allows the valve to support the replacement of clogged modular filter units individually, while the remaining unclogged modular filter units can still be used normally, reducing the replacement cost of the filter components and improving the convenience of filter component replacement.

[0027] Please refer to Figures 2 and 5. One embodiment of this utility model provides a bidirectional self-sealing valve. A positioning groove 5 is symmetrically formed on the arc surface of the annular groove 4, and the positioning groove 5 communicates with one side surface of the annular seat 3. The mounting assembly includes a positioning magnetic block 1 8, a raised locking block 9, a positioning magnetic block 2 10, and a locking groove 11. The positioning magnetic block 1 8 is installed on the inner side wall of the positioning groove 5, and a raised locking block 9 is provided on one side surface of the positioning magnetic block 1 8. The positioning magnetic block 2 10 is symmetrically installed on the outer surface of the mounting frame 6, and the positioning magnetic block 2 10 is located at the positioning... Inside the groove 5, a locking groove 11 is formed on one side surface of the second positioning magnetic block 10, and the locking groove 11 matches the protruding locking block 9. The first positioning magnetic block 8 and the second positioning magnetic block 10 are magnetically attracted to each other. The annular groove 4 provides the opening position for the positioning groove 5. The positioning groove 5 provides the installation position and installation space for the first positioning magnetic block 8 and the second positioning magnetic block 10, respectively. The first positioning magnetic block 8 provides the installation position for the protruding locking block 9. The mounting frame 6 provides the installation position for the second positioning magnetic block 10. The second positioning magnetic block 10 provides the opening position for the locking groove 11. The engaging groove 11 and the protruding locking block 9 match, and the magnetic attraction between the positioning magnetic block 10 and the positioning magnetic block 20 allows the positioning magnetic block 10 to be fixed, thereby fixing the mounting frame 6. If the entire filter component needs to be replaced, the operator can pull the mounting frame 6 outwards to separate the positioning magnetic block 20 from the positioning magnetic block 10 on the outer surface of the mounting frame 6. This allows the mounting frame 6 to slide outwards along the annular groove 4, separating it from the annular seat 3. When installing a new mounting frame 6, the positioning magnetic block 20 is then engaged with the positioning magnetic block 10. Align block 2 10 with positioning groove 5 and push mounting frame 6 inward. When positioning magnetic block 2 10 and positioning magnetic block 1 8 are close, they will be attracted by magnetic force. Press mounting frame 6 firmly so that the locking groove 11 on positioning magnetic block 2 10 completely engages the protruding locking block 9 on positioning magnetic block 1 8. Through the magnetic attraction between positioning magnetic block 1 8 and positioning magnetic block 2 10 and the engaging action between locking groove 11 and protruding locking block 9, the mounting frame 6 inside the valve is fixed, making the replacement of the entire filter component of the valve very convenient.

[0028] Please refer to Figure 1. One embodiment of this utility model provides a bidirectional self-sealing valve. A flange ring 17 is mounted on the outer surface of a ring seat 3. A mounting hole 18 is provided through one side of the flange ring 17. A valve stem 19 is mounted through the top of the valve body 1, and a handwheel 20 is connected to the top of the valve stem 19. The ring seat 3 provides a mounting position for the flange ring 17, and the flange ring 17 provides a mounting position for the mounting hole 18. The mounting hole 18 on the flange ring 17 allows the valve to be connected to a pipeline using bolts and nuts. The valve body 1 provides a mounting position for the valve stem 19, and the valve stem 19 provides a mounting position for the handwheel 20. The handwheel 20 facilitates the operator's control of the valve. The operator can rotate the valve stem 19 using the handwheel 20 to open and close the valve. The bidirectional self-sealing structure inside the valve body 1 is prior art and will not be described here.

[0029] Working principle: During installation, the valve is connected to other pipelines via flange ring 17. In use, the operator rotates handwheel 20 to drive valve stem 19, which in turn drives the internal components of valve body 1, thus opening and closing the valve. If not all modular filter units in the valve's filter components are clogged after use, the operator can remove the clogged filter unit by rotating the locking nut 16 on the clogged filter screen 14, disengaging it from the stud 12. Then, the replacement module frame 13 is aligned with the stud 12 via its insertion hole 15, and the locking nut 16 is rotated to secure the replacement module frame 13, thus replacing the clogged filter unit. The installation of the four sets of modular filter units via connecting components allows for modular installation of the valve's filter components. This allows the valve to support individual replacement of clogged module filter units. When the entire filter component needs to be replaced, the operator can pull the mounting frame 6 outward to separate the positioning magnetic block 10 on the outer surface of the mounting frame 6 from the positioning magnetic block 8, thus separating the mounting frame 6 from the ring seat 3. When installing a new mounting frame 6, align the positioning magnetic block 10 with the positioning groove 5 and push the mounting frame 6 inward. Press the mounting frame 6 firmly so that the engaging groove 11 on the positioning magnetic block 10 completely engages the protruding locking block 9 on the positioning magnetic block 8. The magnetic attraction between the positioning magnetic block 8 and the positioning magnetic block 10, and the engaging action between the engaging groove 11 and the protruding locking block 9, fix the mounting frame 6 inside the valve, making the replacement of the entire filter component of the valve very convenient.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bidirectional self-sealing valve, comprising a valve body (1), characterized in that: The valve body (1) is connected to two ends by connecting pipes (2), and one end of the connecting pipes (2) is connected to an annular seat (3). An annular groove (4) is provided on one side surface of the annular seat (3). An installation assembly is provided inside the annular groove (4). An installation frame (6) is installed in the annular groove (4) through the installation assembly. A connecting assembly is provided on one side surface of the installation frame (6). Four sets of modular filter units are installed on one side surface of the installation frame (6) through the connecting assembly. The modular filter units are used to filter impurities in the fluid and prevent impurities from entering the internal sealing surface of the valve body (1). The connecting assembly includes a stud (12) and a locking nut. (16) The module filter unit includes a module frame (13), a filter screen (14) and a socket (15). Studs (12) are symmetrically installed on one side surface of the mounting frame (6). Four sets of module frames (13) are installed on one side surface of the mounting frame (6) through the studs (12). A socket (15) is opened on one side surface of the module frame (13), and the studs (12) pass through the socket (15). A locking nut (16) is installed on the outer surface of the studs (12), and one side surface of the locking nut (16) is in close contact with the module frame (13). A filter screen (14) is installed on the inner side of the module frame (13).

2. The bidirectional self-sealing valve according to claim 1, characterized in that: A sealing gasket (7) is installed on the other side surface of the mounting frame (6).

3. The bidirectional self-sealing valve according to claim 1, characterized in that: The annular groove (4) has a symmetrically arranged positioning groove (5) on its arc surface, and the positioning groove (5) is connected to one side surface of the ring seat (3).

4. A bidirectional self-sealing valve according to claim 3, characterized in that: The mounting assembly includes a positioning magnetic block one (8), a raised locking block (9), a positioning magnetic block two (10), and a locking groove (11). The positioning magnetic block one (8) is installed on the inner side wall of the positioning groove (5). A raised locking block (9) is provided on one side surface of the positioning magnetic block one (8). The positioning magnetic block two (10) is symmetrically installed on the outer surface of the mounting frame (6), and the positioning magnetic block two (10) is located inside the positioning groove (5). A locking groove (11) is opened on one side surface of the positioning magnetic block two (10), and the locking groove (11) matches the raised locking block (9).

5. A bidirectional self-sealing valve according to claim 4, characterized in that: The positioning magnetic block one (8) and positioning magnetic block two (10) are magnetically attracted to each other.

6. A bidirectional self-sealing valve according to claim 1, characterized in that: A flange ring (17) is installed on the outer surface of the ring seat (3), and a mounting hole (18) is provided through one side of the flange ring (17).

7. A bidirectional self-sealing valve according to claim 1, characterized in that: A valve stem (19) is installed through the top of the valve body (1), and a handwheel (20) is connected to the top of the valve stem (19).

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