One-way anti-explosion isolating valve

Abstract

The utility model relates to the technical field of anti-explosion isolating valves, and discloses a one-way anti-explosion isolating valve which comprises a main body, an automatic closing mechanism is arranged in the main body, the automatic closing mechanism comprises a U-shaped base, a fixing block, a baffle and a connecting shaft, and the upper surface of the U-shaped base is fixedly connected with the interior of the main body. According to the one-way anti-explosion isolating valve, through the effect that the U-shaped base is fixedly installed in the main body, the interior of the U-shaped base can be rotationally connected with the connecting shaft to rotate, the connecting shaft and the U-shaped base are in a damping state, and then after the connecting shaft is rotated to a related position, the connecting shaft is rotated to the related position; the bottom of the fixing block can be fixedly provided with a baffle plate for synchronous change in the main body, then when explosion occurs in the main body, the problem of how to automatically close during explosion is effectively solved, the effect of being more safely used in practice can be achieved, meanwhile, the safety in practice can be improved, and the practicability is high. And popularization and application in practice are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof isolation valves, in particular to a one-way explosion-proof isolation valve. Background Art

[0002] At present, in order to prevent dust explosions, based on the absorption of foreign and domestic industry technologies, explosion-proof technology, explosion suppression technology, explosion venting technology and inerting technology are basically adopted. Among them, explosion-proof technology generally adopts pipeline passive one-way explosion-proof valves or active two-way explosion-proof valves to isolate the risk of explosion in downstream dust collection devices or upstream dust collection devices and the risk of spreading upstream or downstream along the pipeline, thereby suppressing and preventing the explosion shock wave from spreading to other interconnected areas.

[0003] However, the following problems still exist in actual use:

[0004] (1) The existing one-way explosion-proof isolation valve has the problem that it cannot automatically close the isolation valve during use when an explosion occurs. As a result, the impact force during the explosion is large, causing greater damage to the inside and outside, which is not conducive to safe and efficient use in practice.

[0005] (2) The existing one-way explosion-proof isolation valve is prone to loosening after installation and long-term use. Therefore, it is necessary to make it more stable during installation so that it can be used more stably in practice, thereby improving its actual use efficiency.

[0006] For this purpose, the utility model introduces a one-way explosion-proof isolation valve. Utility Model Content

[0007] In view of the deficiencies of the prior art, the utility model provides a one-way explosion-proof isolation valve, which has the advantages of being able to automatically close after an explosion and being more stable during installation, thereby solving the problems raised in the background technology.

[0008] The utility model provides the following technical solutions: a one-way explosion-proof isolation valve, comprising a main body, wherein an automatic closing mechanism is arranged inside the main body, wherein the automatic closing mechanism comprises a U-shaped base, a fixed block, a baffle and a connecting shaft, wherein the upper surface of the U-shaped base is fixedly connected to the interior of the main body, both ends of the connecting shaft are rotatably connected to the interior of the U-shaped base, the interior of the fixed block is fixedly connected to the outer surface of the connecting shaft, and the upper surface of the baffle is fixedly connected to the bottom of the fixed block.

[0009] Preferably, an installation mechanism is provided on the outer surface of the main body, and the installation mechanism includes a connecting block, an L-shaped sliding block and a threaded rod. The back side of the connecting block is fixedly connected to the outer surface of the main body, and a rectangular groove is provided on the outer surface of the connecting block. The outer surface of the L-shaped sliding block is slidably connected to the inner wall of the rectangular groove, and the outer surface of the threaded rod is connected to the internal thread of the L-shaped sliding block.

[0010] Preferably, a fixing plate is fixedly installed on the bottom of the main body, a connecting inclined plate is fixedly installed on the left side of the fixing plate, and one side of the connecting inclined plate abuts against the front side of the baffle.

[0011] Preferably, a shell is fixedly mounted on the outer surface of the main body, an arc-shaped cover plate is abutted against the interior of the shell, an operating handle is arranged on the outer surface of the main body, and a mounting flange is arranged on the outer surface of the main body.

[0012] Preferably, the internal threads of the arc-shaped cover plate are connected with fastening bolts, and the outer surfaces of the fastening bolts are connected with the internal threads of the main body.

[0013] Preferably, a rotating block is fixedly mounted on one end of the threaded rod, and an abutment pad is fixedly mounted on one end of the threaded rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. This one-way explosion-proof isolation valve uses an automatic closing mechanism. When this one-way explosion-proof isolation valve is in use and automatically closes internally when an explosion occurs, first, through the action of the U-shaped base fixedly installed inside the main body, the U-shaped base can be rotated internally to connect the connecting shaft, and there is a damping state between the connecting shaft and the U-shaped base. After the connecting shaft is rotated to a relevant position, the baffle fixedly installed at the bottom of the fixed block can be synchronously changed inside the main body. Then, when an explosion occurs inside, the shock wave generated will impact the baffle after the position is changed, and the position of the baffle will impact the left side of the connecting inclined plate, so that the front of the baffle abuts against the left side of the connecting inclined plate through the fixing effect of the fixing plate, thereby avoiding damage to the outside and the inside by a large shock wave, which is conducive to more efficient use in practice, effectively solving the problem of how to automatically close during an explosion, and can achieve the effect of being convenient for safer use in practice. At the same time, it can improve safety in practice, which is conducive to popularization and use in practice.

[0016] 2. This type of one-way explosion-proof isolation valve, when this type of one-way explosion-proof isolation valve is in use, when it is stably installed, first, the two ends of the main body are connected to the channel through the action of the mounting flange, and after being connected to the channel, the connecting block can be installed on the outer surface of the main body, and then the L-shaped sliding block can be slid to the relevant installation position on the inner wall of the rectangular groove through the action of the rectangular groove on the outer surface of the connecting block, and then the rotating block can be rotated to drive the thread movement of the threaded rod connected to the internal thread of the L-shaped sliding block, so that when the thread of the threaded rod moves, the abutment pad fixedly installed at one end of the threaded rod can abut against the outer surface of the external pipe, which is conducive to more convenient and stable installation and use in practice, effectively solves the problem of how to be more stable during installation, can ensure a more stable installation, and at the same time, it can be used more stably in practice, and improves the efficiency of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A side view structural schematic diagram of;

[0019] Figure 3 For this utility model Figure 1 Schematic diagram of the automatic closing mechanism structure;

[0020] Figure 4 For this utility model Figure 1 Schematic diagram of the installation mechanism structure.

[0021] In the figure: 1. main body; 2. outer shell; 3. arc-shaped cover plate; 4. mounting flange; 5. operating handle; 6. U-shaped base; 7. fixing block; 8. baffle; 9. fixing plate; 10. connecting inclined plate; 11. connecting block; 12. rectangular groove; 13. L-shaped sliding block; 14. threaded rod; 15. rotating block; 16. abutment pad; 17. automatic closing mechanism; 18. mounting mechanism; 19. fastening bolt; 20. connecting shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 3A one-way explosion-proof isolation valve comprises a main body 1, an automatic closing mechanism 17 is arranged inside the main body 1, the automatic closing mechanism 17 comprises a U-shaped base 6, a fixed block 7, a baffle 8 and a connecting shaft 20, the upper surface of the U-shaped base 6 is fixedly connected to the inside of the main body 1, both ends of the connecting shaft 20 are rotatably connected to the inside of the U-shaped base 6, the inside of the fixed block 7 is fixedly connected to the outer surface of the connecting shaft 20, the upper surface of the baffle 8 is fixedly connected to the bottom of the fixed block 7, a fixing plate 9 is fixedly installed at the bottom of the main body 1, a connecting inclined plate 10 is fixedly installed on the left side of the fixing plate 9, one side of the connecting inclined plate 10 is in contact with the front of the baffle 8, which can achieve the effect of being safer to use in practice, and at the same time, can improve the safety in practice, which is conducive to the popularization and use in practice.

[0024] See also Figure 4 The outer surface of the main body 1 is provided with a mounting mechanism 18, and the mounting mechanism 18 includes a connecting block 11, an L-shaped sliding block 13 and a threaded rod 14. The back of the connecting block 11 is fixedly connected to the outer surface of the main body 1, and a rectangular groove 12 is provided on the outer surface of the connecting block 11. The outer surface of the L-shaped sliding block 13 is slidably connected to the inner wall of the rectangular groove 12, and the outer surface of the threaded rod 14 is connected to the internal thread of the L-shaped sliding block 13. A rotating block 15 is fixedly installed at one end of the threaded rod 14, and an abutment pad 16 is fixedly installed at one end of the threaded rod 14, which can ensure a more stable installation. At the same time, it can be used more stably in practice, and the actual use efficiency is improved.

[0025] See also Figure 1 and Figure 2 A shell 2 is fixedly mounted on the outer surface of the main body 1, an arc-shaped cover plate 3 is abutted against the interior of the shell 2, an operating handle 5 is arranged on the outer surface of the main body 1, a mounting flange 4 is arranged on the outer surface of the main body 1, a fastening bolt 19 is connected to the inner thread of the arc-shaped cover plate 3, and the outer surface of the fastening bolt 19 is connected to the inner thread of the main body 1.

[0026] Working principle: when in use, when the whole is installed, the two ends of the main body 1 are connected to the channel through the mounting flange 4. After the connection with the channel, the connecting block 11 can be installed on the outer surface of the main body 1, and then the L-shaped sliding block 13 can be slid to the relevant installation position on the inner wall of the rectangular groove 12 through the rectangular groove 12 on the outer surface of the connecting block 11. Then, by rotating the rotating block 15, the threaded movement of the threaded rod 14 connected to the internal thread of the L-shaped sliding block 13 can be driven, so that when the threaded rod 14 moves, the abutment pad 16 fixedly installed at one end of the threaded rod 14 can abut against the outer surface of the external pipe, thereby ensuring stability during installation.

[0027] When the explosion automatically closes, the U-shaped base 6 can be rotated inside the main body 1 to connect the connecting shaft 20, and there is a damping state between the connecting shaft 20 and the U-shaped base 6. After the connecting shaft 20 is rotated to the relevant position, the baffle 8 fixed at the bottom of the fixed block 7 can be synchronously changed inside the main body 1. Then, when an explosion occurs inside, the shock wave generated will impact the baffle 8 after the position is changed, and the position of the baffle 8 will be impacted to abut against the left side of the connecting inclined plate 10. Therefore, through the fixing effect of the fixed plate 9, when the front side of the baffle 8 abuts against the left side of the connecting inclined plate 10, the interior of the main body 1 can be completely closed.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-way explosion-proof isolation valve, characterized in that: The invention comprises a main body (1), wherein an automatic closing mechanism (17) is arranged inside the main body (1), wherein the automatic closing mechanism (17) comprises a U-shaped base (6), a fixing block (7), a baffle (8) and a connecting shaft (20), wherein the upper surface of the U-shaped base (6) is fixedly connected to the inside of the main body (1), both ends of the connecting shaft (20) are rotatably connected to the inside of the U-shaped base (6), the inside of the fixing block (7) is fixedly connected to the outer surface of the connecting shaft (20), and the upper surface of the baffle (8) is fixedly connected to the bottom of the fixing block (7).

2. A one-way explosion-proof isolation valve according to claim 1, characterized in that: The outer surface of the main body (1) is provided with a mounting mechanism (18), the mounting mechanism (18) comprises a connecting block (11), an L-shaped sliding block (13) and a threaded rod (14), the back surface of the connecting block (11) is fixedly connected to the outer surface of the main body (1), the outer surface of the connecting block (11) is provided with a rectangular groove (12), the outer surface of the L-shaped sliding block (13) is slidably connected to the inner wall of the rectangular groove (12), and the outer surface of the threaded rod (14) is connected to the internal thread of the L-shaped sliding block (13).

3. A one-way explosion-proof isolation valve according to claim 1, characterized in that: A fixing plate (9) is fixedly mounted on the bottom of the main body (1), a connecting inclined plate (10) is fixedly mounted on the left side of the fixing plate (9), and one side of the connecting inclined plate (10) abuts against the front side of the baffle (8).

4. A one-way explosion-proof isolation valve according to claim 1, characterized in that: The outer surface of the main body (1) is fixedly mounted with a shell (2), the interior of the shell (2) is abutted with an arc-shaped cover plate (3), the outer surface of the main body (1) is provided with an operating handle (5), and the outer surface of the main body (1) is provided with a mounting flange (4).

5. A one-way explosion-proof isolation valve according to claim 4, characterized in that: The internal threads of the arc-shaped cover plate (3) are connected to a fastening bolt (19), and the outer surface of the fastening bolt (19) is connected to the internal threads of the main body (1).

6. A one-way explosion-proof isolation valve according to claim 2, characterized in that: A rotating block (15) is fixedly mounted on one end of the threaded rod (14), and an abutment pad (16) is fixedly mounted on one end of the threaded rod (14).

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