Rear filter element for gas detection

Abstract

The utility model discloses a rear filter element for gas detection, which comprises a filter element sealing shell, the lower part of the filter element sealing shell is fixedly connected with a gas inlet pipeline, the interior of the filter element sealing shell is fixedly connected with an auxiliary support plate, and the upper part of the auxiliary support plate is movably sleeved with an activated carbon filter device. According to the rear filtering element for gas detection, an upper pressing plate is connected to the upper portion of a filtering element sealing shell in a sleeving mode, meanwhile, the upper pressing plate is connected to the outer portion of a limiting column in a sleeving mode, the upper pressing plate limits the position of activated carbon filtering equipment, meanwhile, the limiting column drives the rotation track of the upper pressing plate to limit, and meanwhile the sealing shell is installed outside a limiting gasket; when equipment is installed, the sealing shell is rotated, the sealing shell and the filtering element sealing shell do threaded motion, namely the sealing shell drives the upper portion of the filtering element sealing shell to conduct sealing, limitation of equipment sealing and an internal structure is increased, and stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a post-filter element for gas detection. Background Art

[0002] During the gas detection process, the gas is usually transported to the inside of the detection mechanism. At the same time, the detection mechanism will directly discharge the gas after gas detection. In order to avoid environmental pollution, a filter element is installed inside the gas discharge pipe. The filter element can effectively filter the impurities and harmful substances contained in the gas, so that the gas meets national standards when discharged.

[0003] Research has found that the detection element installed at the front end of the prior art is located in the gap between the filter elements and is covered by dust formed on the outside of the filter elements at intervals during operation; in the above-mentioned body filtration device, since the gas contains dust during the equipment process, the dust will adhere to the inside of the filtering device. When the dust continues to accumulate, it will affect the dust re-filtration efficiency. Utility Model Content

[0004] In view of the shortcomings of existing post-filter elements for gas detection, the utility model provides a post-filter element for gas detection, which has the advantages that gas is transported to the interior of the sealed shell of the filter element through an air intake pipe and is discharged through a groove opened inside the activated carbon filter device. The threaded rod drives a cleaning plate to move up and down, and the cleaning plate cleans impurities contained in the inner wall of the activated carbon filter device, thereby solving the problems raised in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions:

[0006] A post-filter element for gas detection, comprising a filter element sealing shell, the lower part of which is fixedly connected to an air intake pipe, the interior of which is fixedly connected to an auxiliary support plate, the upper part of which is movably sleeved with an activated carbon filter device, the outer side of the upper part of the auxiliary support plate is fixedly connected to a limiting column, and the inner side of which is movably sleeved with a threaded rod;

[0007] An impurity collecting funnel is installed at the lower end of the sealed housing of the filter element, and a cleaning pipe is fixedly connected to the lower part of the impurity collecting funnel; a cleaning plate is threadedly connected to the outer part of the threaded rod, and an upper pressing plate is movably sleeved on the upper part of the activated carbon filter device; a connecting rod is fixedly connected to the upper part of the upper pressing plate, and a limiting spacer is fixedly connected to the upper part of the connecting rod, and a gear is fixedly connected to the upper part of the threaded rod;

[0008] The inner side of the gear is meshed with an auxiliary gear, the outer side of the limiting gasket is movably sleeved with a sealing shell, and one side of the sealing shell is fixedly connected to a gas exhaust pipe; the lower and upper ends of the activated carbon filtering device are internally fixedly connected with auxiliary sealing gaskets, and the outer side of the gear is threadedly connected with a gear belt.

[0009] Preferably, the interior of the impurity collecting funnel is conical, the auxiliary support plate is located directly below the activated carbon filtering device, there is a gap between the outer side of the impurity collecting funnel and the inner wall of the sealing shell of the filter element, and the other side of the cleaning pipe extends to the outside of the sealing shell of the filter element.

[0010] Preferably, the limiting column passes through the activated carbon filtering device and is movably sleeved inside the upper pressing plate, and the upper pressing plate is squeezed and limited at the upper end of the activated carbon filtering device.

[0011] Preferably, a groove is provided inside the activated carbon filter device, and a dust cleaning plate is tightly attached to the inside of the groove provided inside the activated carbon filter device, and auxiliary sealing pads are respectively installed at the lower end and the upper end of the activated carbon filter device.

[0012] Preferably, the sealing shell is movably sleeved on the outside of the limiting gasket, and the lower part of the sealing shell and the upper part of the sealing shell of the filter element are threadedly connected to each other.

[0013] Preferably, the gear belt is meshedly connected with the outside of the plurality of gear groups, the gear comprises an outer gear and an inner gear, and the auxiliary gear is installed between the outer gear and the inner gear.

[0014] Preferably, the air intake pipe is installed outside the gas detection device, and a valve is installed inside the dust cleaning pipe.

[0015] Compared with the existing post-filter element for gas detection, the utility model has the following beneficial effects:

[0016] The post-filter element for gas detection is assisted by transmission gears, auxiliary gears and gas exhaust pipes, that is, multiple sets of gears rotate synchronously, the gears drive the threaded rods to rotate, and the threaded rods drive the cleaning plates to move up and down synchronously, and the gas is transmitted and filtered through the grooves opened inside the activated carbon filter equipment, that is, the impurities generated after filtration will accumulate inside the grooves, and by pushing the cleaning plates up and down, the convenience of dust cleaning can be increased.

[0017] The post-filter element for gas detection is sleeved on the upper part of the sealing shell of the filter element through an upper pressure plate, and the upper pressure plate is sleeved on the outside of the limiting column. The upper pressure plate limits the position of the activated carbon filter device, and the limiting column drives the upper pressure plate to limit the rotation trajectory. At the same time, a sealing shell is installed on the outside of the limiting gasket. When the equipment is installed, the sealing shell is rotated, and a threaded movement is performed between the sealing shell and the sealing shell of the filter element, that is, the sealing shell drives the upper part of the sealing shell of the filter element to be sealed, thereby increasing the sealing of the equipment and the limitation of the internal structure, and increasing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the utility model;

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0021] Figure 4 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0023] In the figure: 1. Sealing housing of filter element; 2. Air intake duct; 3. Impurity collecting funnel; 4. Cleaning duct; 5. Auxiliary support plate; 6. Activated carbon filter equipment; 7. Limiting column; 8. Threaded rod; 9. Cleaning plate; 10. Upper pressure plate; 11. Connecting rod; 12. Limiting gasket; 13. Gear; 14. Auxiliary gear; 15. Sealing housing; 16. Gas exhaust duct; 17. Auxiliary sealing gasket; 18. Gear belt. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The embodiment of the utility model provides a post-filter element for gas detection, comprising a filter element sealed housing 1, a lower portion of the filter element sealed housing 1 is fixedly connected to an air intake pipe 2, the air intake pipe 2 drives the gas to be transported upward, and an auxiliary support plate 5 is fixedly connected to the interior of the filter element sealed housing 1;

[0026] The auxiliary support plate 5 limits the position of the activated carbon filter device 6, and the upper part of the auxiliary support plate 5 is movably sleeved with the activated carbon filter device 6;

[0027] The activated carbon filter device 6 drives the impurities contained in the passing gas to be filtered, and the outer side of the upper part of the auxiliary support plate 5 is fixedly connected to the limiting column 7;

[0028] The limiting column 7 carries the installation position of the activated carbon filter device 6 to limit the installation position, and the inner side of the auxiliary support plate 5 is movably sleeved with a threaded rod 8;

[0029] At the same time, an impurity collecting funnel 3 is installed at the lower end of the inner sealed housing 1 of the filter element, and the impurity collecting funnel 3 drives the impurities generated after filtration to be adsorbed, and the lower part of the impurity collecting funnel 3 is fixedly connected to a dust cleaning pipe 4, and the dust cleaning pipe 4 drives the dust to be discharged;

[0030] At the same time, the outer thread of the threaded rod 8 is connected with a dust cleaning plate 9, and the threaded rod 8 is rotated, and the threaded rod 8 drives the dust cleaning plate 9 to adjust the height;

[0031] The upper part of the activated carbon filter device 6 is movably sleeved with an upper pressing plate 10, which is sleeved on the outside of the limiting column 7. The upper pressing plate 10 drives the position of the activated carbon filter device 6 to be limited, and the limiting column 7 carries the rotation angle of the upper pressing plate 10 to be adjusted. The upper part of the upper pressing plate 10 is fixedly connected with a connecting rod 11;

[0032] The upper part of the connecting rod 11 is fixedly connected to a limit spacer 12, and the upper part of the threaded rod 8 is fixedly connected to a gear 13; therefore, if the driving gear 13 is rotated, the threaded rod 8 can be rotated;

[0033] At the same time, the inner side of the gear 13 is meshed with an auxiliary gear 14, and the auxiliary gear 14 realizes the rotation of its own auxiliary gear 14 by meshing with a powered gear set. The auxiliary gear 14 assists in driving the transmission between the gears 13. At the same time, when the gear 13 rotates, the threaded rod 8 is then rotated, and the threaded rod 8 drives the height of the cleaning plate 9 to be adjusted, and the height of the cleaning plate 9 can be adjusted, and the carrying equipment can be used to push the dust for cleaning.

[0034] At the same time, a sealing shell 15 is movably sleeved on the outside of the limiting gasket 12, and the sealing shell 15 is sleeved on the outside of the limiting gasket 12. The sealing shell 15 is rotated to avoid interfering with the position of the limiting gasket 12; at the same time, the sealing performance of the upper end of the sealing shell 1 of the filter element is driven, and a gas exhaust pipe 16 is fixedly connected to one side of the sealing shell 15. The gas exhaust pipe 16 drives the filtered gas to be discharged, and an auxiliary sealing gasket 17 is fixedly connected to the lower and upper ends of the activated carbon filter device 6; the auxiliary sealing gasket 17 limits the end of the gas exhaust pipe 16 to prevent dust from adhering to the end, and the external thread of the gear 13 is connected to a gear belt 18.

[0035] See also Figure 2 The interior of the impurity collecting funnel 3 is conical, the auxiliary support plate 5 is located directly below the activated carbon filtering device 6, and there is a gap between the outer side of the impurity collecting funnel 3 and the inner wall of the filter element sealing shell 1;

[0036] The other side of the dust cleaning pipeline 4 extends to the outside of the filter element sealed housing 1, and is installed at the bottom of the activated carbon filter device 6 through the impurity collection funnel 3. After the activated carbon filter device 6 drives the gas to filter, the impurities generated after filtering slide downward; at the same time, the sliding impurities are collected by the impurity collection funnel 3 and can be discharged through the dust cleaning pipeline 4, which increases the convenience of dust cleaning when the equipment is used. In addition, an opening is installed between the side of the impurity collection funnel 3 and the filter element sealed housing 1, and the opening can drive the gas to be transmitted, so that the gas transmission and dust cleaning do not interfere with each other.

[0037] Specific operation instructions: When in use, install the air intake pipe 2 inside the gas detection device, and the gas is transported to the inside of the sealed shell 1 of the filter element through the air intake pipe 2; at the same time, the gas passes through the inside of the groove opened inside the activated carbon filter device 6, and the groove opened on the inner wall of the activated carbon filter device 6 causes the gas to be transported in a centralized manner, and the activated carbon filter device 6 filters the gas, and the filtered gas is transported upward and discharged; at the same time, when the gear 13 rotates, it is assisted by the auxiliary gear 14 and the gear belt 18, that is, the threaded rod 8 rotates synchronously, and the threaded rod 8 drives the cleaning plate 9 to perform threaded movement. When the cleaning plate 9 moves up and down, the cleaning plate 9 can scrape off impurities generated after filtration on the inner wall of the activated carbon filter device 6, thereby increasing the sufficiency of cleaning the impurities generated after filtration inside the sealed shell 1 of the filter element.

[0038] See also Figure 2In the specific technical solution of the embodiment of the utility model, the above-mentioned limiting column 7 passes through the activated carbon filter device 6 and is movably sleeved inside the upper pressing plate 10; at the same time, the upper pressing plate 10 is squeezed and limited at the upper end of the activated carbon filter device 6, and the activated carbon filter device 6 is installed on the upper part of the auxiliary support plate 5, and the limiting column 7 squeezes and limits the position of the activated carbon filter device 6, thereby increasing the stability of the activated carbon filter device 6 when positioning. At the same time, the limiting column 7 is carried through the interior of the upper pressing plate 10, and the limiting column 7 carries the position of the upper pressing plate 10 for replication and positioning, thereby avoiding the problem of rotation of the upper pressing plate 10 when in use.

[0039] See also Figure 3 In the specific technical solution of the embodiment of the utility model, a groove is opened inside the above-mentioned activated carbon filter device 6, and the cleaning plate 9 is tightly attached to the inside of the groove opened inside the activated carbon filter device 6.

[0040] At the same time, the auxiliary sealing gasket 17 is respectively installed at the lower end and the upper end of the activated carbon filter device 6, and is movably connected to the inside of the groove opened inside the activated carbon filter device 6 through the cleaning plate 9, and the auxiliary sealing gasket 17 is respectively located at the upper end and the lower end of the activated carbon filter device 6. Through the blocking of the auxiliary sealing gasket 17, the gas can only be transmitted through the groove opened inside the activated carbon filter device 6.

[0041] At the same time, when the gas is transmitted, the gas is filtered inside the groove, and the dust generated after filtration adheres to the inside of the groove opened on the inner wall of the activated carbon filter device 6. The threaded rod 8 is started, and a threaded movement is performed between the threaded rod 8 and the cleaning plate 9, that is, the cleaning plate 9 moves up and down inside the groove formed on the inner wall of the activated carbon filter device 6; when impurities are accumulated inside the groove opened inside the activated carbon filter device 6, the impurities can be pushed and scraped by the cleaning plate 9, which can increase the sufficiency of impurity cleaning.

[0042] See also Figure 2 In the specific technical solution of the embodiment of the utility model, the sealing shell 15 is movably sleeved on the outside of the limiting gasket 12, and the lower part of the sealing shell 15 and the upper part of the sealing shell 1 of the filter element are mutually threadedly connected. The sealing shell 15 is movably sleeved on the outside of the limiting gasket 12, and the sealing shell 15 is rotated at the same time, so that the sealing shell 15 and the sealing shell 1 of the filter element move mutually threadedly, that is, the position between the sealing shell 15 and the sealing shell 1 of the filter element can be spliced ​​and limited; and after the position between the sealing shell 1 of the filter element and the sealing shell 15 is spliced, the sealing shell 15 drives the threaded rod 8 installed inside the limiting gasket 12 to extend to the inside of the sealing shell 1 of the filter element, which can drive the stability of the threaded rod 8 when the position is limited.

[0043] See also Figure 4In the specific technical scheme of the embodiment of the utility model, the above-mentioned gear belt 18 is meshed and connected with the outside of the multiple sets of gears 13; at the same time, the gear 13 includes an outer gear and an inner gear, and the auxiliary gear 14 is installed between the outer gear and the inner gear. The motor is started, and the motor drives the outer gear in the gear 13 to rotate. The gear belt 18 is sleeved on the outer gear belt of the multiple sets of gears 13, that is, the gear belt 18 drives the outer gear in the gear 13 to rotate synchronously, and the auxiliary gear 14 is installed between the inner gear and the outer gear; when the outer gear rotates, the auxiliary gear 14 assists in driving the inner gear to rotate synchronously, that is, the multiple sets of gears 13 installed inside the limit gasket 12 can rotate synchronously, that is, the gear 13 drives the threaded rod 8 to rotate synchronously. When the threaded rod 8 rotates, the threaded rod 8 can carry the cleaning plate 9 to synchronously adjust the position inside the activated carbon filter device 6.

[0044] See also Figure 1 In the specific technical scheme of the embodiment of the utility model, the above-mentioned air intake pipe 2 is installed outside the gas detection device, and a valve is installed inside the dust cleaning pipe 4. After the gas detection device drives the gas for detection, the detected gas is transported to the inside of the filter element sealed housing 1 through the air intake pipe 2. At the same time, the activated carbon filter device 6 installed inside the filter element sealed housing 1 can absorb impurities contained in the passing gas, and after adsorbing the impurities contained in the gas, it can avoid the problem of direct discharge of the gas, which leads to air pollution.

[0045] Although 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 post-filter element for gas detection, comprising a filter element sealed housing (1), the lower part of the filter element sealed housing (1) is fixedly connected to an air intake pipe (2), the interior of the filter element sealed housing (1) is fixedly connected to an auxiliary support plate (5), the upper part of the auxiliary support plate (5) is movably sleeved with an activated carbon filter device (6), the outer side of the upper part of the auxiliary support plate (5) is fixedly connected to a limiting column (7), and the inner side of the auxiliary support plate (5) is movably sleeved with a threaded rod (8), characterized in that: An impurity collecting funnel (3) is installed at the lower end of the filter element sealing shell (1), and a dust cleaning pipeline (4) is fixedly connected to the lower part of the impurity collecting funnel (3); The external thread of the threaded rod (8) is connected to a dust cleaning plate (9); the upper part of the activated carbon filter device (6) is movably sleeved with an upper pressure plate (10); the upper part of the upper pressure plate (10) is fixedly connected to a connecting rod (11); the upper part of the connecting rod (11) is fixedly connected to a limiting gasket (12); the upper part of the threaded rod (8) is fixedly connected to a gear (13); The inner side of the gear (13) is meshedly connected with an auxiliary gear (14); the outer side of the limit gasket (12) is movably sleeved with a sealing shell (15); and one side of the sealing shell (15) is fixedly connected with a gas exhaust pipe (16); Auxiliary sealing pads (17) are fixedly connected to the interior of the lower end and the upper end of the activated carbon filtering device (6), and a gear belt (18) is threadedly connected to the exterior of the gear (13).

2. A post-filter element for gas detection according to claim 1, characterized in that: The interior of the impurity collection funnel (3) is conical, the auxiliary support plate (5) is located directly below the activated carbon filtering device (6), there is a gap between the outer side of the impurity collection funnel (3) and the inner wall of the filter element sealing shell (1), and the other side of the cleaning pipe (4) extends to the outside of the filter element sealing shell (1).

3. A post-filter element for gas detection according to claim 2, characterized in that: The limiting column (7) passes through the activated carbon filtering device (6) and is movably sleeved inside the upper pressing plate (10), while the upper pressing plate (10) is squeezed and limited at the upper end of the activated carbon filtering device (6).

4. A post-filter element for gas detection according to claim 3, characterized in that: The activated carbon filter device (6) has a groove inside, and the dust cleaning plate (9) is tightly attached to the inside of the groove inside the activated carbon filter device (6). The auxiliary sealing gasket (17) is installed at the lower end and the upper end of the activated carbon filter device (6).

5. A post-filter element for gas detection according to claim 4, characterized in that: The sealing shell (15) is movably sleeved on the outside of the limiting gasket (12), and the lower part of the sealing shell (15) and the upper part of the sealing shell (1) of the filter element are threadedly connected to each other.

6. A post-filter element for gas detection according to claim 1, characterized in that: The gear belt (18) is meshedly connected with the outside of a plurality of gear groups (13), wherein the gear (13) comprises an outer gear and an inner gear, and the auxiliary gear (14) is installed between the outer gear and the inner gear.

7. A post-filter element for gas detection according to claim 1, characterized in that: The air intake pipe (2) is installed outside the gas detection device, and a valve is installed inside the dust removal pipe (4).

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