Gas filtering device for gas detection

Abstract

The utility model relates to the technical field of gas filtering devices, and discloses a gas filtering device for gas detection, which comprises a filtering box, a box cover arranged at the top of the filtering box, a gas inlet pipe extending to the inside from the left side of the filtering box, an aerator pipe fixedly arranged at the right side of the gas inlet pipe, and an exhaust pipe arranged at the top of the box cover, a protective cover is fixedly mounted on the back of the filter box, filter mechanisms are arranged inside and outside the filter box, and a stirring mechanism is arranged in the filter box and extends to the back. According to the gas filtering device for gas detection, through the arranged filtering mechanism, in the using process, through a pressing frame arranged on the box cover, a filtering net is pressed downwards, and through sealing rings arranged on the two sides of the filtering net, the gas tightness of the filtering net is guaranteed, so that the filtering effect of the filtering net is guaranteed; the entering gas can be better dispersed in the filter box, so that the gas adsorption efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filtering devices, in particular to a gas filtering device for gas detection. Background Art

[0002] When the gas is being tested, it is filtered to remove non-test gases contained in it, ensuring the accuracy of the gas during the testing process.

[0003] According to the description of a gas filter device for gas detection disclosed on the patent website (authorization announcement number: CN218924119U), "The utility model discloses a gas filter device for gas detection, including a reaction box body, the surface of the top of the reaction box body is movably connected to a sealed box cover, the rear side of the top surface of the sealed box cover is penetrated by a first mounting hole, the inner cavity of the first mounting hole is slidably connected to a gas inlet pipe, the surface of the top of the gas inlet pipe is fixedly connected to an air intake pipe, and the front side of the top surface of the sealed box cover is fixedly connected to a water pipe. The utility model uses a reaction box body, a sealed box cover, a water pipe, a gas inlet pipe, a mixing device, a filter plate, a support plate, a second limit block, a first limit block and a limit spring in combination, which has the advantages of filtering harmful gases and easy removal of the filter screen. When the gas is filtered, the gas to be used will not be filtered out. Some harmful gases can react through the solution and then be filtered, which reduces the pollution to the environment and facilitates the use of the filtering device."

[0004] In view of the above description, the applicant believes that the following problems exist:

[0005] During use, the utility model introduces the gas to be detected into the reaction box through the air inlet pipe, adsorbs it through the internal solution, and filters the gas through the filter screen. However, in actual use, the gas is filtered from the bottom upward, and the filter plate is fixed by snapping during use. Therefore, when the bottom air pressure gradually increases, a gap is likely to appear at the connection between the filter plate and the reaction box after the air pressure increases, resulting in a reduction in the filtering effect. Therefore, it is necessary to improve a gas filter device for gas detection to solve the above problem. Utility Model Content

[0006] The purpose of the present utility model is to provide a gas filter device for gas detection to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas filtering device for gas detection, comprising a filter box, a box cover is provided on the top of the filter box, an air intake pipe is fixedly installed on the left side of the filter box extending to the inside, an aeration pipe is fixedly installed on the right side of the air intake pipe, an exhaust pipe is provided on the top of the box cover, a protective cover is fixedly installed on the back of the filter box, filtering mechanisms are provided inside and outside the filter box, and a stirring mechanism is provided on the inside of the filter box extending to the back.

[0008] The filter mechanism includes a filter assembly and a fixing assembly. The filter assembly is arranged between the interior of the filter box and the inner side of the box cover, and the fixing assembly is arranged outside the filter box.

[0009] Preferably, the filter assembly includes a fixed frame, which is fixedly installed inside the filter box, a filter screen is provided on the top of the fixed frame, a lower sealing ring is provided on the outside of the bottom end of the filter screen, and an upper sealing ring is provided on the outside of the top end of the filter screen, a connecting rod is fixedly installed on the inner side of the top of the box cover, and a pressing frame is fixedly installed on the end of the connecting rod away from the box cover to facilitate the sealing installation of the filter screen inside the filter box.

[0010] Preferably, the top of the fixed frame and the bottom of the pressing frame are both provided with grooves, and the top and bottom of the filter screen are respectively inserted into the inside of the two grooves, so as to facilitate the sealing connection of the filter screen.

[0011] Preferably, the fixing assembly includes an articulated seat, which is fixedly mounted on the outside of the filter box. A threaded column is rotatably mounted inside the articulated seat, and a locking nut is mounted on the external thread of the threaded column to facilitate fixed connection between the box cover and the filter box.

[0012] Preferably, a groove is provided on the outer side of the box cover at a position corresponding to the threaded column, and the threaded column passes through the groove, so that the threaded column can be snap-fitted and fixed.

[0013] Preferably, twelve fixing components are provided, and three fixing components are provided on each of the four sides of the filter box, so as to improve the installation stability of the box cover.

[0014] Preferably, the stirring mechanism includes a drive motor, which is fixedly mounted on the inner side of the back of the protective cover, a first stirring paddle is fixedly mounted on the output end of the drive motor, a second stirring paddle is rotatably mounted inside the filter box, a first synchronous wheel is fixedly mounted on the outside of the first stirring paddle, a second synchronous wheel is fixedly mounted on the outside of the second stirring paddle, and a synchronous belt is installed between the first synchronous wheel and the second synchronous wheel to facilitate the synchronous rotation of the first stirring paddle and the second stirring paddle, so that the adsorption liquid inside the filter box is more uniform.

[0015] Preferably, two second stirring paddles are provided, and through holes are opened at the back of the filter box and at the corresponding positions of the two second stirring paddles, and the two second stirring paddles are rotatably installed on the inner wall of the protective cover through the through holes, so that the second stirring paddles can rotate through the filter box.

[0016] Compared with the prior art, the present invention provides a gas filter device for gas detection, which has the following beneficial effects:

[0017] 1. The gas filter device for gas detection has a filtering mechanism. During use, the filter screen is pressed downward by a pressing frame on the box cover, and the airtightness of the filter screen is ensured by the sealing rings on both sides of the filter screen, thereby ensuring the filtering effect of the filter screen. At the same time, the aeration pipe structure is provided to better disperse the incoming gas inside the filter box, thereby ensuring the gas adsorption efficiency.

[0018] 2. The gas filter device for gas detection, through the stirring mechanism provided, during use, drives the first stirring paddle to rotate through the driving motor, so that the first stirring paddle drives the second stirring paddle to rotate synchronously through the provided first synchronous wheel, second synchronous wheel and synchronous belt, so that the adsorption liquid inside the filter box can better contact with the gas, thereby improving the adsorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0020] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0021] Figure 2 This is a rear view structural diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the anatomical structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the front exploded anatomical structure of the present invention;

[0024] Figure 5 This is a front cross-sectional structural diagram of the present utility model;

[0025] Figure 6 For this utility model Figure 5 A schematic diagram of the structure at center A;

[0026] Figure 7 This is a schematic diagram of the appearance structure of the stirring mechanism of the utility model.

[0027] In the figure: 1. Filter box; 2. Box cover; 3. Air inlet pipe; 4. Aeration pipe; 5. Exhaust pipe; 6. Protective cover; 7. Filter mechanism; 71. Filter assembly; 711. Fixed frame; 712. Lower sealing ring; 713. Filter screen; 714. Upper sealing ring; 715. Connecting rod; 716. Pressing frame; 72. Fixed assembly; 721. Articulated seat; 722. Threaded column; 723. Locking nut; 8. Stirring mechanism; 81. Drive motor; 82. First stirring paddle; 83. Second stirring paddle; 84. First synchronous wheel; 85. Second synchronous wheel; 86. Synchronous belt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] Example 1:

[0031] See also Figure 1-6 The utility model provides a technical solution: a gas filtering device for gas detection, comprising a filter box 1, a box cover 2 is provided on the top of the filter box 1, an air intake pipe 3 is fixedly installed on the left side of the filter box 1, an aeration pipe 4 is fixedly installed on the right side of the air intake pipe 3, an exhaust pipe 5 is provided on the top of the box cover 2, a protective cover 6 is fixedly installed on the back of the filter box 1, a filtering mechanism 7 is provided inside and outside the filter box 1, and a stirring mechanism 8 is provided on the inside of the filter box 1 extending to the back.

[0032] The filter mechanism 7 includes a filter assembly 71 and a fixing assembly 72 . The filter assembly 71 is arranged between the interior of the filter box 1 and the inner side of the box cover 2 , and the fixing assembly 72 is arranged outside the filter box 1 .

[0033] Furthermore, the filter assembly 71 includes a fixed frame 711, which is fixedly installed inside the filter box 1. A filter screen 713 is provided on the top of the fixed frame 711, a lower sealing ring 712 is provided on the outside of the bottom end of the filter screen 713, and an upper sealing ring 714 is provided on the outside of the top end of the filter screen 713. A connecting rod 715 is fixedly installed on the inner side of the top of the box cover 2, and a pressing frame 716 is fixedly installed on the end of the connecting rod 715 away from the box cover 2, so that the filter screen 713 can be sealed inside the filter box 1.

[0034] Furthermore, grooves are provided on the top of the fixing frame 711 and the bottom of the pressing frame 716 , and the top and bottom of the filter screen 713 are respectively inserted into the inside of the two grooves, so as to facilitate the sealing connection of the filter screen 713 .

[0035] Furthermore, the fixing assembly 72 includes an articulated seat 721, which is fixedly mounted on the outside of the filter box 1. A threaded column 722 is rotatably mounted inside the articulated seat 721, and a locking nut 723 is mounted on the external thread of the threaded column 722 to facilitate fixed connection between the box cover 2 and the filter box 1.

[0036] Furthermore, a groove is provided on the outer side of the box cover 2 at a position corresponding to the threaded column 722 , and the threaded column 722 passes through the groove, so that the threaded column 722 can be snap-fitted and fixed.

[0037] Furthermore, twelve fixing assemblies 72 are provided, and three fixing assemblies 72 are respectively provided on the four sides of the filter box 1 , so as to improve the installation stability of the box cover 2 .

[0038] Example 2:

[0039] See also Figure 7 , and combined with Example 1, it is further obtained that the stirring mechanism 8 includes a driving motor 81, the driving motor 81 is fixedly installed on the inner side of the back of the protective cover 6, the output end of the driving motor 81 is fixedly installed with a first stirring paddle 82, the interior of the filter box 1 is rotatably installed with a second stirring paddle 83, the outside of the first stirring paddle 82 is fixedly installed with a first synchronous wheel 84, the outside of the second stirring paddle 83 is fixedly installed with a second synchronous wheel 85, and a synchronous belt 86 is installed between the first synchronous wheel 84 and the second synchronous wheel 85 to facilitate the synchronous rotation of the first stirring paddle 82 and the second stirring paddle 83, so that the adsorption liquid inside the filter box 1 is more uniform.

[0040] Furthermore, two second stirring paddles 83 are provided, and through holes are opened at the back of the filter box 1 and the corresponding positions of the two second stirring paddles 83, and the two second stirring paddles 83 are rotatably installed on the inner wall of the protective cover 6 through the through holes, so that the second stirring paddles 83 can rotate through the filter box 1.

[0041] After the filter screen 713 is in contact with the filter 713, the filter 713 is then aligned with the fixing frame 711, and the box cover 2 is put on the top of the filter box 1, and the box cover 2 is pressed downward, so that the box cover 2 presses the pressing frame 716 on the top of the filter screen 713 through the connecting rod 715, and then the threaded column 722 is rotated to make the threaded column 722 fit into the groove of the box cover 2, and the locking nut 723 is tightened to fix the box cover 2 and the filter box 1. Then, air is introduced into the filter box 1 through the air inlet pipe 3, and the gas is evenly discharged into the filter box 1 through the aeration pipe 4, so that it contacts the adsorption liquid inside. The gas treated by the adsorption liquid is discharged upward, filtered by the filter screen 713, and then discharged through the exhaust pipe 5.

[0042] During the adsorption process, the first stirring paddle 82 is driven to rotate by the driving motor 81, so that the first stirring paddle 82 drives the first synchronous wheel 84 to rotate, and the first synchronous wheel 84 drives the second synchronous wheel 85 to rotate through the synchronous belt 86, so that the second synchronous wheel 85 drives the second stirring paddle 83 to rotate, so that the first stirring paddle 82 and the second stirring paddle 83 rotate synchronously, and the first stirring paddle 82 and the second stirring paddle 83 stir the adsorption liquid in the filter box 1.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A gas filter device for gas detection, comprising a filter box (1), characterized in that: The top of the filter box (1) is provided with a box cover (2), the left side of the filter box (1) extends to the inside and is fixedly installed with an air intake pipe (3), the right side of the air intake pipe (3) is fixedly installed with an aeration pipe (4), the top of the box cover (2) is provided with an exhaust pipe (5), the back of the filter box (1) is fixedly installed with a protective cover (6), the inside and outside of the filter box (1) are provided with a filtering mechanism (7), and the inside of the filter box (1) extends to the back and is provided with a stirring mechanism (8); The filter mechanism (7) comprises a filter assembly (71) and a fixing assembly (72); the filter assembly (71) is arranged between the interior of the filter box (1) and the inner side of the box cover (2); and the fixing assembly (72) is arranged outside the filter box (1).

2. A gas filter device for gas detection according to claim 1, characterized in that: The filter assembly (71) comprises a fixed frame (711), the fixed frame (711) being fixedly mounted inside the filter box (1), a filter screen (713) being provided on the top of the fixed frame (711), a lower sealing ring (712) being provided on the outside of the bottom end of the filter screen (713), and an upper sealing ring (714) being provided on the outside of the top end of the filter screen (713), a connecting rod (715) being fixedly mounted on the inner side of the top of the box cover (2), and a pressing frame (716) being fixedly mounted on the end of the connecting rod (715) away from the box cover (2).

3. A gas filter device for gas detection according to claim 2, characterized in that: The top of the fixed frame (711) and the bottom of the pressing frame (716) are both provided with grooves, and the top and bottom of the filter screen (713) are respectively inserted into the inside of the two grooves.

4. A gas filter device for gas detection according to claim 1, characterized in that: The fixing assembly (72) comprises an articulated seat (721), the articulated seat (721) being fixedly mounted on the outside of the filter box (1), a threaded column (722) being rotatably mounted inside the articulated seat (721), and a locking nut (723) being mounted on the external thread of the threaded column (722).

5. A gas filter device for gas detection according to claim 4, characterized in that: A groove is provided on the outer side of the box cover (2) at a position corresponding to the threaded column (722), and the threaded column (722) passes through the groove.

6. A gas filter device for gas detection according to claim 4, characterized in that: Twelve fixing assemblies (72) are provided, and three fixing assemblies (72) are respectively provided on the four sides of the filter box (1).

7. A gas filter device for gas detection according to claim 1, characterized in that: The stirring mechanism (8) comprises a driving motor (81), the driving motor (81) being fixedly mounted on the inner side of the back of the protective cover (6), a first stirring paddle (82) being fixedly mounted on the output end of the driving motor (81), a second stirring paddle (83) being rotatably mounted inside the filter box (1), a first synchronous wheel (84) being fixedly mounted on the outside of the first stirring paddle (82), a second synchronous wheel (85) being fixedly mounted on the outside of the second stirring paddle (83), and a synchronous belt (86) being mounted between the first synchronous wheel (84) and the second synchronous wheel (85).

8. A gas filter device for gas detection according to claim 7, characterized in that: Two second stirring paddles (83) are provided, and through holes are provided at positions corresponding to the two second stirring paddles (83) on the back of the filter box (1), and the two second stirring paddles (83) are rotatably mounted on the inner wall of the protective cover (6) through the through holes.

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