Split type explosion-proof gas analyzer

Abstract

The utility model belongs to the technical field of gas analyzers, and discloses a split type anti-explosion gas analyzer which comprises an outer protective shell, a gas bin is arranged in the outer protective shell, a cover plate is hinged to the top end of the gas bin, a supporting plate is fixedly connected to the top surface of the gas bin, and a connecting block is fixedly connected to the bottom surface of the supporting plate; an electric push rod is fixedly connected to the periphery of the connecting block, a rotating shaft is fixedly connected to the output end of the electric push rod, two fixing blocks are fixedly connected to the side face of the cover plate, the rotating shaft is rotationally connected with the two fixing blocks, the fixing blocks can be lifted through the electric push rod, then the cover plate can be controlled, and the pressure relief time can be freely controlled; and the interior of the gas bin is prevented from being in a high-pressure state for a long time, filtering can be conducted through a filter screen plate, and external impurities are prevented from entering the outer protective shell.

Description

Technical Field

[0001] The present application relates to the technical field of gas analyzers, and more specifically, to a split-type explosion-proof gas analyzer. Background Art

[0002] Gas analyzers are process analysis instruments that measure gas composition. They mainly use gas sensors to detect the types of gas in the environment. Gas analyzers are usually integral structures that are fixed with multiple bolts. There are many steps in assembly and disassembly, which is inconvenient to use. In order to make the test results more accurate, a closed structure is generally used to ensure the concentration and pressure of the gas. However, a closed chamber may explode due to excessive pressure.

[0003] A split explosion-proof gas analyzer disclosed by searching the publication number CN217931589U includes an outer protective shell, a top plate is provided on the outer protective shell; an opening and closing assembly is provided on the side of the outer protective shell, and the opening and closing assembly includes an opening provided on the side of the outer protective shell, and an upper and lower baffle are hingedly provided on the side of the outer protective shell, and a limit strip is provided on the outer side of the end of the upper baffle and the lower baffle that are close to each other, and a mounting shell is hingedly provided on the outer side of the upper baffle, and a threaded hole is provided on the mounting shell, and a bolt is connected with the thread in the threaded hole, and one end of the bolt extends into the mounting shell and is provided with a limit block, and the upper and lower ends of the limit block are inclined; an air pump is provided in the outer protective shell, and a gas bin is provided in the outer protective shell and connected to the air pump, and the upper end of the gas bin is an inclined surface, and an explosion-proof assembly is provided on the inclined surface. The utility model only needs to turn a bolt to open the upper and lower baffles, which is easy to use, and has an explosion-proof structure, which is safer.

[0004] However, this application has certain shortcomings. When the pressure reaches a critical value, the air pressure will push open the hinged cover. When the hinge chain is 180 degrees, it is easy for the cover to be completely pushed open and unable to recover automatically. When the hinge chain is not 180 degrees (for example, a 90-degree hinge), the gas chamber is likely to maintain a high-pressure state for a long time, which is not conducive to the long-term use of the gas chamber. The vent is used for air release, and there is a lack of filtering components, so external debris can easily enter the device through the vent.

[0005] In order to solve the above problems, the present application provides a split-type explosion-proof gas analyzer. Utility Model Content

[0006] The present application provides a split explosion-proof gas analyzer adopting the following technical solution:

[0007] A split explosion-proof gas analyzer comprises an outer protective shell, a gas bin is arranged inside the outer protective shell, and a cover plate is hinged on the top of the gas bin, a support plate is fixedly connected to the top surface of the gas bin, and a connecting block is fixedly connected to the bottom surface of the support plate, an electric push rod is fixedly connected to the outer periphery of the connecting block, and a rotating shaft is fixedly connected to the output end of the electric push rod, two fixed blocks are fixedly connected to the side of the cover plate, and the rotating shaft is rotatably connected to the two fixed blocks, a movable door is hinged on the outer periphery of the outer protective shell, and a lock structure is arranged between the movable door and the outer protective shell, a filter screen is installed on the movable door, and a display screen is fixedly installed on the side of the movable door.

[0008] Through the above technical solution, the fixed block can be lifted by the electric push rod, and then the cover plate can be controlled. The pressure relief time can be freely controlled to avoid the gas chamber being in a high-pressure state for a long time. The filter plate can be used for filtering to prevent external debris from entering the outer shell.

[0009] Furthermore, an air pressure sensor is installed inside the gas bin, and the top end of the air pressure sensor extends to the outside and is installed with a pressure gauge.

[0010] Through the above technical solution, the air pressure sensor and the pressure gauge can intuitively reflect the air pressure inside the gas warehouse.

[0011] Furthermore, a control unit is provided in the display screen, and the air pressure sensor and the electric push rod are electrically connected to the control unit.

[0012] Through the above technical solution, the control unit can be an ARM architecture chip. The control unit in the display screen can be used to release the pressure when the air pressure transmitted by the air pressure sensor reaches a set critical value, and the pressure release time can be controlled.

[0013] Furthermore, a through groove is provided on the side of the movable door, and a plurality of grooves are provided on the outer periphery of the through groove, threaded holes are provided in the grooves, the filter screen is arranged in the through groove, and a plurality of mounting blocks are fixedly connected to the outer periphery of the filter screen, the mounting blocks are matched with the grooves, and another threaded hole is provided on the side of the mounting block, and bolts are installed on the side of the mounting block.

[0014] Through the above technical solution, the filter screen plate can be conveniently installed and removed by bolts and can be cleaned regularly.

[0015] Furthermore, the grooves are arranged in four groups, and several of the grooves are distributed in a rectangular shape.

[0016] Through the above technical solution, the grooves are evenly distributed and reasonably laid out, which is conducive to the installation of the filter screen plate.

[0017] Furthermore, the groove is arranged on the side of the movable door close to the outer protective shell, and the center line of the filter screen plate is at the same height as the top surface of the gas bin.

[0018] Through the above technical solution, the filter screen plate is close to the cover plate, which is conducive to pressure relief.

[0019] Furthermore, the bottom surface of the connecting block is integrally formed with an inclined surface, and the electric push rod is parallel to the cover plate.

[0020] Through the above technical solution, the electric push rod is parallel to the cover plate, which is beneficial for the electric push rod to control the lifting of the fixed block.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] The fixed block can be lifted by the electric push rod, and then the cover plate can be controlled. The pressure relief time can be freely controlled to prevent the gas chamber from being in a high-pressure state for a long time. The filter plate can be used for filtering to prevent external debris from entering the outer shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 For this application Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the filter screen structure of the present application;

[0026] Figure 4 This is a schematic diagram of the shaft structure of this application.

[0027] Description of the numbers in the figure:

[0028] 1. Outer shell; 2. Gas chamber; 3. Movable door; 4. Support plate; 5. Connecting block; 6. Electric push rod; 7. Cover plate; 8. Air pressure sensor; 9. Pressure gauge; 10. Through slot; 11. Filter plate; 12. Groove; 13. Bolt; 14. Mounting block; 15. Rotating shaft; 16. Fixing block; 17. Threaded hole; 18. Display screen. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Example:

[0033] The present application embodiment discloses a split type explosion-proof gas analyzer. Figure 1 and Figure 4 , including an outer protective shell 1, a gas bin 2 is arranged inside the outer protective shell 1, and a cover plate 7 is hinged on the top of the gas bin 2, a support plate 4 is fixedly connected to the top surface of the gas bin 2, and a connecting block 5 is fixedly connected to the bottom surface of the support plate 4, an electric push rod 6 is fixedly connected to the outer periphery of the connecting block 5, and a rotating shaft 15 is fixedly connected to the output end of the electric push rod 6, two fixed blocks 16 are fixedly connected to the side of the cover plate 7, and the rotating shaft 15 is rotatably connected to the two fixed blocks 16, a movable door 3 is hinged on the outer periphery of the outer protective shell 1, and a lock structure is arranged between the movable door 3 and the outer protective shell 1, and a filter screen plate 11 is installed on the movable door 3, and filtering can be performed through the filter screen plate 11 to prevent external debris from entering the inner part of the outer protective shell 1;

[0034] A display screen 18 is fixedly installed on the side of the movable door 3, an air pressure sensor 8 is installed inside the gas bin 2, and the top of the air pressure sensor 8 extends to the outside and is installed with a pressure gauge 9, a control unit is arranged in the display screen 18, and the air pressure sensor 8 and the electric push rod 6 are electrically connected to the control unit, the control unit can be an ARM architecture chip, and the control unit in the display screen 18 can be used to release the pressure when the air pressure transmitted by the air pressure sensor 8 reaches a set critical value, and the pressure relief time can be controlled, the groove 12 is arranged on the side of the movable door 3 close to the outer protective shell 1, and the center line of the filter screen plate 11 is at the same height as the top surface of the gas bin 2, the filter screen plate 11 is close to the cover plate 7, which is conducive to pressure relief, the bottom surface of the connecting block 5 is integrally formed with a slope, and the electric push rod 6 is parallel to the cover plate 7, and the electric push rod 6 is parallel to the cover plate 7, which is conducive to the electric push rod 6 controlling the lifting of the fixed block 16.

[0035] See also Figure 2 and Figure 3 A through groove 10 is provided on the side of the movable door 3, and a plurality of grooves 12 are provided on the outer periphery of the through groove 10, and a threaded hole 17 is provided in the groove 12. The filter screen plate 11 is arranged in the through groove 10, and a plurality of mounting blocks 14 are fixedly connected to the outer periphery of the filter screen plate 11. The mounting block 14 is matched with the groove 12, and another threaded hole 17 is provided on the side of the mounting block 14. Bolts 13 are installed on the side of the mounting block 14, and the filter screen plate 11 can be conveniently installed and removed by the bolts 13, and can be cleaned regularly. Four groups of grooves 12 are provided, and a plurality of grooves 12 are distributed in a rectangular shape. The grooves 12 are evenly distributed and reasonably laid out, which is conducive to the installation of the filter screen plate 11.

[0036] The implementation principle of this embodiment is: the fixed block 16 can be lifted by the electric push rod 6, and then the cover plate 7 can be controlled, and the pressure relief time can be freely controlled to prevent the gas chamber 2 from being in a high-pressure state for a long time. The filter plate 11 can be used for filtering to prevent external debris from entering the outer protective shell 1.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A split explosion-proof gas analyzer, comprising an outer protective shell (1), a gas chamber (2) is arranged inside the outer protective shell (1), and a cover plate (7) is hinged on the top of the gas chamber (2), characterized in that: The top surface of the gas bin (2) is fixedly connected to a support plate (4), and the bottom surface of the support plate (4) is fixedly connected to a connection block (5); the outer periphery of the connection block (5) is fixedly connected to an electric push rod (6), and the output end of the electric push rod (6) is fixedly connected to a rotating shaft (15); the side of the cover plate (7) is fixedly connected to two fixed blocks (16), and the rotating shaft (15) is rotatably connected to the two fixed blocks (16); the outer periphery of the outer protective shell (1) is hingedly connected to a movable door (3), and a lock structure is provided between the movable door (3) and the outer protective shell (1); the movable door (3) is installed with a filter screen plate (11), and the side of the movable door (3) is fixedly installed with a display screen (18).

2. A split explosion-proof gas analyzer according to claim 1, characterized in that: An air pressure sensor (8) is installed inside the gas chamber (2), and the top end of the air pressure sensor (8) extends to the outside and is installed with a pressure gauge (9).

3. A split explosion-proof gas analyzer according to claim 2, characterized in that: A control unit is provided in the display screen (18), and the air pressure sensor (8) and the electric push rod (6) are electrically connected to the control unit.

4. A split explosion-proof gas analyzer according to claim 1, characterized in that: The movable door (3) has a through slot (10) on its side, and a plurality of grooves (12) on its outer periphery, wherein threaded holes (17) are provided in the grooves (12), the filter screen plate (11) is arranged in the through slot (10), and a plurality of mounting blocks (14) are fixedly connected to the outer periphery of the filter screen plate (11), the mounting blocks (14) are matched with the grooves (12), and another threaded hole (17) is provided on the side of the mounting block (14), and bolts (13) are installed on the side of the mounting block (14).

5. A split explosion-proof gas analyzer according to claim 4, characterized in that: The grooves (12) are arranged in four groups, and a plurality of the grooves (12) are distributed in a rectangular shape.

6. A split explosion-proof gas analyzer according to claim 4, characterized in that: The groove (12) is arranged on the side of the movable door (3) close to the outer protective shell (1), and the center line of the filter screen plate (11) is flush with the top surface of the gas chamber (2).

7. The split explosion-proof gas analyzer according to claim 1, characterized in that: The bottom surface of the connecting block (5) is integrally formed and has an inclined surface, and the electric push rod (6) is parallel to the cover plate (7).

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