Gas filter element and laying method thereof

Abstract

The invention relates to a gas filter element and a laying method thereof, and relates to the technical field of gas filtration. The gas filter element comprises a mounting frame and a plurality of corrugated filter paper, the corrugated filter paper is stacked in the length direction of the mounting frame and located in the mounting frame, the gas outlet end of the outer side of each corrugated filter paper is communicated with the outside, the middle of each corrugated filter paper is provided with a gas inlet groove, and the gas inlet groove is communicated with the gas outlet end of the outer side of each corrugated filter paper. An air inlet is formed in one end of the mounting frame in the length direction of the mounting frame, and each air inlet is communicated with the air inlet. The gas filtering device has the effect of improving the gas filtering efficiency.

Description

Technical Field

[0001] This application relates to the field of gas filtration technology, and in particular to a gas filter element and its installation method. Background Technology

[0002] With the significant increase in public awareness of health and the environment, indoor air quality has become a core concern in modern family life and office environments. Gas filtration technology, as a key technology for improving air quality in enclosed spaces such as homes and offices, has wide applications in industrial production and daily life, especially in environments with high air quality requirements such as cleanrooms, hospitals, and laboratories. Therefore, the market size for air purification equipment is continuously expanding. Against this backdrop, the performance of the gas filter element, a core consumable in air purifiers, directly determines the overall effectiveness, energy consumption, and long-term cost of the device. Currently, the mainstream air purification equipment on the market mainly uses filter materials such as fiber filters and activated carbon.

[0003] Regarding the aforementioned technologies, since traditional fiber filter media typically increase their contact area with air through planar folding (i.e., self-bending), they simultaneously bear the filtration function and the mechanical function of maintaining their structural stability. This makes the folds in traditional fiber filter media prone to deformation during use, increasing the likelihood of inconsistent flow channels. Consequently, the airflow tends to seek the widest and straightest path (short circuit), wasting other paths and reducing filtration efficiency. Therefore, improvements are needed. Summary of the Invention

[0004] To improve the efficiency of gas filtration, this application provides a gas filter element and its laying method.

[0005] In the first aspect, the gas filter element provided in this application adopts the following technical solution: A gas filter element includes a mounting frame and a plurality of corrugated filter papers. The corrugated filter papers are stacked along the length of the mounting frame and located inside the mounting frame. The air outlet end of each corrugated filter paper is connected to the outside. An air inlet groove is formed in the middle of each corrugated filter paper. An air inlet is formed at one end of the mounting frame along its own length. Each corrugated filter paper is connected to the air inlet.

[0006] By adopting the above technical solution, compared with the existing technology, the folds produced by the folds on traditional fiber filter media are prone to deformation during use, which makes it easy for the flow channels of traditional fiber filter media to be of different sizes. This makes the airflow seek the widest and straightest path (short circuit), resulting in waste of other paths and thus reducing filtration efficiency. This application, by setting corrugated filter paper, allows external gas to enter the cavity composed of several air inlet slots when it enters the mounting frame through the air inlet. This allows the gas to enter the interior of the corrugated filter paper through the air inlet slots and exit through the air outlet channels inside the corrugated filter paper. Since the corrugated filter paper is pre-designed and pressed, it has a regular and rigid wave support frame. This makes the cross-sectional shape and height of each air outlet channel consistent and stable, thereby increasing the uniformity of airflow distribution across the entire cross-section of the corrugated filter paper. This allows the airflow to exit through several paths (i.e., air outlet channels) simultaneously, effectively ensuring filtration efficiency.

[0007] Preferably, each corrugated filter paper includes a wave portion and two support portions. Each wave portion is configured as a wave shape and is located between the corresponding two support portions, and is connected to the corresponding two support portions, so that a plurality of air outlet channels are formed between the wave portion and the support portions.

[0008] By adopting the above technical solution and specifically configuring the corrugated filter paper, the support portion can abut against the support portion of adjacent corrugated filter paper. This allows the support portion to replace the abutment and support of the folded portion in traditional fiber filter media. Consequently, the filtration of the corrugated portion and the support of the support portion become relatively independent, thereby reducing the probability of deformation of the corrugated portion. This ensures the consistency of several air outlet channels and reduces the probability that the airflow will only flow through the widest and straightest path after partial deformation, ensuring the uniformity of airflow and thus guaranteeing filtration efficiency.

[0009] Preferably, the extension directions of the air outlet channels on each pair of adjacent corrugated filter papers are different.

[0010] By adopting the above technical solution, the stacking arrangement of the corrugated filter paper ensures that the extension direction of the air outlet channel on each pair of adjacent corrugated filter papers is different. This allows the air entering the filter element of this application to exit from different sides of the mounting frame, thereby improving the uniformity of the exit and ensuring the exit effect.

[0011] Preferably, the mounting frame includes a base plate, a cylinder, and a cover plate. Several corrugated filter papers are stacked on top of the base plate. The bottom of the cylinder is connected to the base plate and passes through each corrugated filter paper. The air inlet communicates with the interior of the cylinder. Several ventilation holes are also provided through the side wall of the cylinder. The cover plate abuts against the top of the uppermost corrugated filter paper and is connected to the cylinder.

[0012] By adopting the above technical solution and the specific setting of the installation frame, when it is necessary to stack the corrugated filter paper, the relevant personnel only need to put the corrugated filter paper on the cylinder and gradually stack the corrugated filter paper to achieve the stacking of the corrugated filter paper, which effectively facilitates the operation of the relevant personnel and enables the cylinder to pre-filter solid particles with larger impurities.

[0013] Preferably, the mounting frame further includes a screw cap, the top of the cylinder extending upward through the cover plate, the screw cap being threadedly connected to one end of the cylinder extending through the cover plate, and the bottom of the screw cap abutting against the top of the cover plate for fixing the cylinder to the cover plate.

[0014] By adopting the above technical solution, the cap design allows personnel to tighten the cap onto the top of the cylinder after the cover plate is placed on the top layer of corrugated filter paper, so that the bottom of the cap plate abuts against the top of the cover plate. This secures the cover plate to the cylinder, ensuring its stability and facilitating operation.

[0015] Preferably, the mounting frame further includes several side frames, which are located around the base plate and connected to it. Each side frame is provided with an abutment plate and a fixing mechanism. One side of each abutment plate is rotatably connected to the corresponding side frame, and the other side abuts against the side end of the corrugated filter paper. The fixing mechanism is used to fix the corresponding abutment plate to the cover plate.

[0016] By adopting the above technical solution and setting the side frame, after the corrugated filter paper is stacked on the base plate, relevant personnel can drive the abutment plate to rotate, so that the abutment plate is in contact with the side wall of each corrugated filter element, thereby positioning and reinforcing the corrugated filter element, thus ensuring the stability of the stacked corrugated filter elements, and thus ensuring the effectiveness of the filter itself.

[0017] Preferably, the fixing mechanism includes a transmission frame, an insertion frame, and a locking assembly. One end of the transmission frame is rotatably connected to the corresponding side frame, and the other end is rotatably connected to the insertion frame. The insertion frame is slidably connected to the corresponding side frame, and one end is used to insert into the cover plate. The locking assembly is used to lock the insertion frame and the cover plate.

[0018] By adopting the above technical solution and setting the fixing mechanism, when the abutment plate rotates, the abutment plate can drive the insertion frame to be inserted into the side wall of the cover plate through the transmission frame. This allows the locking component in the cover plate to lock the corresponding insertion frame, thereby fixing the abutment plate and the cover plate, ensuring the overall stability of the installation frame, and thus ensuring the effectiveness of this application. It replaces the fixing method of fasteners such as bolts and screws, and facilitates the installation by relevant personnel.

[0019] Preferably, the locking assembly includes a mounting frame, a locking frame, and an elastic element. The mounting frame is disposed within the cover plate, and the locking frame is slidably connected to the mounting frame, with the sliding direction being different from the sliding direction of the corresponding insertion frame. Each insertion frame is located on the sliding path of the corresponding locking frame. The elastic element is used to allow the corresponding locking frame to be continuously inserted into the corresponding insertion frame through its own elastic force.

[0020] By adopting the above technical solution and setting the locking component, when the insertion frame is inserted into the cover plate, the locking frame can be automatically inserted into the corresponding insertion frame under the elastic force of the elastic element, thereby locking the insertion frame. In turn, by locking the insertion frame, the locking between the abutment plate and the cover plate is achieved, which effectively facilitates the locking of the insertion frame, replaces the commonly used bolt locking scheme, and effectively facilitates the operation of relevant personnel.

[0021] Preferably, the bottom of the cap extends with several adapting cylinders. Each of the mounting brackets is slidably connected to the cover plate, and the sliding direction is the same as the sliding direction of the corresponding locking bracket. The cover plate is also provided with a linkage assembly, which includes several linkage brackets. The linkage brackets, mounting brackets and adapting cylinders are correspondingly arranged. One end of each linkage bracket is sleeved on the corresponding adapting cylinder and movably connected to the corresponding adapting cylinder, and the other end is rotatably connected to the corresponding mounting bracket.

[0022] By adopting the above technical solution and configuring the linkage components, when the cap is gradually loosened at the top of the cylinder, the cap can drive each linkage frame to rotate, thereby causing each linkage frame to slide its corresponding setting frame. This causes the setting frame to gradually slide away from its corresponding insertion frame, and the locking frame to gradually disengage from the insertion frame, thus locking the insertion frame. This enables quick unlocking of the abutment plate and the cover plate, effectively facilitating the operation of relevant personnel. At the same time, the cap can simultaneously unlock the cover plate and the cylinder, as well as the abutment plate and the cover plate, while rotating, thereby realizing the linkage between the cap and the setting frame, which facilitates the operation of relevant personnel.

[0023] On the other hand, this application also provides a method for laying a gas filter element, including the following steps: Stacking filter paper; stack several corrugated filter papers in the mounting frame, such that the extension direction of the air outlet channel on each two adjacent corrugated filter papers is different, and that the air inlet groove on each corrugated filter paper is connected to the air inlet. Fixing the filter paper: The cover presses down on the top corrugated filter paper, and the cover is fixedly connected to the mounting frame to achieve fixation.

[0024] In summary, this application includes at least one of the following beneficial technical effects: The corrugated filter paper design allows external gas to enter the cavity composed of several air inlet slots when it enters the mounting frame through the air inlet. This allows the gas to enter the interior of the corrugated filter paper through the air inlet slots and exit through the air outlet channels inside the corrugated filter paper. Because the corrugated filter paper is pre-designed and pressed into shape, it has a regular and rigid wave-shaped support frame. This makes the cross-sectional shape and height of each air outlet channel consistent and stable, thereby increasing the uniformity of airflow distribution across the entire cross-section of the corrugated filter paper. This allows the airflow to exit simultaneously through several paths (i.e., air outlet channels), effectively ensuring filtration efficiency. The specific design of the mounting frame allows for easy stacking of corrugated filter paper. When it is necessary to stack the corrugated filter paper, the relevant personnel simply need to place the corrugated filter paper on the cylinder and gradually stack it. This effectively facilitates the operation of the relevant personnel and allows the cylinder to pre-filter solid particles with larger impurities. The linkage mechanism is designed so that as the cap is gradually loosened at the top of the cylinder, it drives each linkage frame to rotate, causing each linkage frame to slide its corresponding mounting frame. This causes the mounting frame to gradually slide away from its corresponding insertion frame, and the locking frame to gradually disengage from the insertion frame, thus locking the insertion frame. This allows for quick unlocking of the abutment plate and the cover plate, effectively facilitating operation. Furthermore, the cap can simultaneously unlock the cover plate and the cylinder, as well as the abutment plate and the cover plate, during rotation, achieving linkage between the cap and the mounting frame and further simplifying operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating the overall structure of the gas filter element in Embodiment 1 of this application.

[0026] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0027] Figure 3 This is a schematic diagram of the air inlet structure in Embodiment 1 of this application.

[0028] Figure 4This is a schematic diagram illustrating the structure of the cylinder in Embodiment 2 of this application.

[0029] Figure 5 This is a schematic diagram illustrating the structure of the driving component in Embodiment 2 of this application.

[0030] Figure 6 yes Figure 5 Enlarged view of section B in the middle.

[0031] Figure 7 This is a schematic diagram illustrating the structure of the cylinder in Embodiment 2 of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Mounting frame; 11. Base plate; 12. Side frame; 13. Cover plate; 14. Cylinder; 141. Vent hole; 15. Screw cap; 2. Corrugated filter paper; 21. Wave-shaped part; 22. Support part; 3. Air inlet groove; 4. Air inlet; 5. Air outlet channel; 6. Abutment plate; 7. Fixing mechanism; 71. Transmission frame; 72. Insertion frame; 721. Locking groove; 73. Locking assembly; 731. Setting frame; 732. Locking frame; 733. Elastic element; 74. Drive assembly; 741. Reversing rack; 742. Reversing gear; 75. Linkage assembly; 751. Linkage frame; 8. Adaptive cylinder. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0034] Example 1

[0035] Embodiment 1 of this application discloses a gas filter element. (Refer to...) Figure 1 , Figure 2 and Figure 3 The gas filter element includes a mounting frame 1 and several corrugated filter papers 2. The corrugated filter papers 2 are stacked along the length of the mounting frame 1 and located inside the mounting frame 1. The air outlet end of each corrugated filter paper 2 is connected to the outside. An air inlet groove 3 is opened in the middle of each corrugated filter paper 2. An air inlet 4 is opened at one end of the mounting frame 1 along its own length. Each air inlet groove 3 is connected to the air inlet 4.

[0036] Reference Figure 1 and Figure 3The mounting frame 1 includes a base plate 11, side frames 12, and a cover plate 13. The base plate 11 is used to stack several corrugated filter papers 2. In this embodiment, the base plate 11 has a square cross-section, and there are four side frames 12. Each side frame 12 is fixedly connected to the intersection (i.e., corner) of the top edge of the corresponding base plate 11 by welding, and the top of each side frame 12 extends upward. The side wall of the cover plate 13 abuts against the inner side wall of the top of each side frame 12 and is fixedly connected to the top of each side frame 12 by bolts. An air inlet 4 is also provided through the bottom center of the base plate 11. The air inlet 4 is circular to allow external gas to enter.

[0037] Reference Figure 1 and Figure 2 Each corrugated filter paper 2 includes a wave portion 21 and two support portions 22. Each wave portion 21 is configured as a wave, specifically a sine wave. Each wave portion 21 is located between two corresponding support portions 22, and the top of the crest of each sine wave is glued to the bottom of the corresponding upper support portion 22, and the bottom of the crest of each sine wave is glued to the top of the corresponding lower support portion 22, thereby forming several parallel and uniform air outlet channels 5 between the wave portion 21 and the support portions 22.

[0038] Reference Figure 2 Each corrugated section 21 has a functional filter layer sprayed onto its surface. In this embodiment, the functional filter layer is made of melt-blown polypropylene, glass fiber, ultra-fine glass fiber cotton, or electrostatic electret fiber to ensure the filtration effect. Each corrugated filter paper 2 has an air inlet groove 3 through its center on the top wall. The air inlet groove 3 is correspondingly arranged with the air inlet 4 and is circular.

[0039] Reference Figure 2 Several corrugated filter papers 2 are stacked along the length of the side frame 12, and the bottom corrugated filter paper 2 abuts against the top of the bottom plate 11. The extension direction of the air outlet channel 5 of each adjacent corrugated filter paper 2 is different. In this embodiment, they are all set at a 90-degree angle.

[0040] Reference Figure 2 Each corrugated filter paper 2 has its sidewall abutting against the inner sidewall of the corresponding side frame 12, thereby enabling the side frame 12 to position, limit, and fix each corrugated filter paper 2. The bottom of the cover plate 13 abuts against the top of the uppermost corrugated filter paper 2, thereby fixing the corrugated filter paper 2 along the length of the side frame 12.

[0041] The implementation principle of a gas filter element in Embodiment 1 of this application is as follows: the corrugated filter paper 2 is configured so that when external gas enters the mounting frame 1 through the air inlet 4, it can enter the cavity composed of several air inlet slots 3. Thus, the gas can enter the interior of the corrugated filter paper 2 through the air inlet slots 3 and exit through the air outlet channel 5 inside the corrugated filter paper 2. Since the corrugated filter paper 2 is pre-designed and pressed into shape, it has a regular and rigid wave support frame. This makes the cross-sectional shape and height of each air outlet channel 5 consistent and stable, thereby increasing the uniformity of airflow distribution on the entire cross-section of the corrugated filter paper 2. Thus, the airflow can exit through several paths (i.e., air outlet channels 5) simultaneously, effectively ensuring the filtration efficiency.

[0042] Embodiment 1 of this application also provides a method for laying a gas filter element, including the following steps: S1. Stacking filter paper: Place several corrugated filter papers 2 between the four side frames 12 and gradually stack them on the base plate 11, so that the included angle of the extension direction of the air outlet channel 5 on each two adjacent corrugated filter papers 2 is 90 degrees. S2. Install the cover plate: Place the cover plate 13 above the uppermost corrugated filter paper, so that the bottom of the cover plate 13 abuts against the top of the uppermost corrugated filter paper 2, and fix the cover plate 13 to the side frame 11 with bolts.

[0043] Example 2

[0044] The difference between Embodiment 2 and Embodiment 1 in this application is that: (Refer to...) Figure 4 and Figure 5 The mounting frame 1 also includes a cylindrical body 14, with an opening at the bottom corresponding to an air inlet 4, thus connecting the air inlet 4 to the opening of the cylindrical body 14. The bottom of the cylindrical body 14 is fixedly connected to the top of the base plate 11. Several ventilation holes 141 are also provided through the side wall of the cylindrical body 14, so that the air inlet 4 is connected to the air outlet channel 5 of each corrugated filter paper 2 (not shown in the attached figure of this embodiment 2) via the cylindrical body 14. The cylindrical body 14 is adapted to the air inlet groove 3 on each corrugated filter paper 2, so that each corrugated filter paper 2 is fitted onto the cylindrical body 14, thereby initially positioning the corrugated filter paper 2.

[0045] Reference Figure 4 and Figure 5 The top of the cover plate 13 is also provided with an opening to allow the top of the cylinder 14 to pass through from the bottom upward. The mounting frame 1 also includes a screw cap 15, the bottom of which is inserted into the cover plate 13 and is movably connected to the cover plate 13. It can slide relative to the cover plate 13 along its own axis and can also rotate relative to the cover plate 13 along its own axis.

[0046] Reference Figure 4 and Figure 5 The inner side wall of the bottom of the cap 15 is also provided with an internal thread (not shown in the attached figure), and the part of the cylinder 14 that extends out of the cover plate 13 is also provided with an external thread (not shown in the attached figure). The top of the cap 15 is threadedly connected to the top of the cylinder 14, so that the cap 15 is screwed onto the cylinder 14. When screwed on, the bottom of the cap 15 abuts against the top of the cover plate 13 to fix the cover plate 13 and the cylinder 14.

[0047] Reference Figure 5 and Figure 6 Each side frame 12 is provided with an abutment plate 6 and a fixing mechanism 7, and the number of abutment plates 6 and fixing mechanisms 7 on each side frame 12 is set to two, and they are arranged in a one-to-one correspondence. The two abutment plates 6 are located on opposite sides of the side frame 12, and the side frames 12 that are close to each other are rotatably connected by a pin, and the other end is attached to the side wall of each corrugated filter paper 2.

[0048] Reference Figure 5 and Figure 6 Each fixing mechanism 7 includes a transmission frame 71, an insertion frame 72, and a locking assembly 73. One end of each transmission frame 71 is rotatably connected to the corresponding abutment plate 6 via a pin, and the other end is rotatably connected to the corresponding insertion frame 72 via a pin. One end of each insertion frame 72 is slidably connected to the corresponding side frame 12 via a sliding groove, and the sliding direction is perpendicular to the corresponding side wall of the cover plate 13. The other end of each insertion frame 72 is inserted into the corresponding side wall of the cover plate 13. The side wall of the cover plate 13 is also provided with several grooves for the insertion frames 72 to be inserted, and the grooves are arranged one-to-one with the insertion frames 72.

[0049] Reference Figure 5 and Figure 6 Each locking component 73 is located within the cover plate 13 and includes a mounting bracket 731, a locking bracket 732, and an elastic element 733. Each mounting bracket 731 is located on one side of the corresponding insertion bracket 72 and is slidably connected to the inner wall of the cover plate 13, with the sliding direction perpendicular to the sliding direction of the corresponding insertion bracket 72. One end of each locking bracket 732 extends into the corresponding mounting bracket 731 and is slidably connected to the corresponding mounting bracket 731, with the sliding direction being the same as the sliding direction of the corresponding mounting bracket 731.

[0050] Reference Figure 5 and Figure 6In this embodiment, each elastic element 733 is configured as a pressure spring, and each pressure spring is sleeved on the corresponding locking frame 732. One end of the spring abuts against the side of the corresponding mounting frame 731 that is close to the corresponding insertion frame 72, and the other end abuts against the side of the corresponding locking frame 732 that is away from the corresponding insertion frame 72. This spring is used to reset the locking frame 732 by its own elastic force and to insert it into the corresponding insertion frame 72 when it is reset.

[0051] Reference Figure 5 and Figure 6 Each insertion bracket 72 has a locking groove 721 extending through its side wall for inserting a corresponding locking bracket 732. Each insertion bracket 72 has an arc-shaped guide surface at the end away from the mounting bracket 731, and each arc-shaped guide surface is located on the side of the insertion bracket 72 closest to the corresponding side bracket 12.

[0052] Reference Figure 5 and Figure 6 A driving assembly 74 is also provided between the two mounting brackets 731 on the same side of the cover plate 13. Each driving assembly 74 includes two reversing racks 741 and one reversing gear 742. The reversing racks 741 are arranged one-to-one with the mounting brackets 731 and are fixedly connected to their respective mounting brackets 731. The reversing gear 742 is located between the two corresponding reversing racks 741 and is rotatably connected to the cover plate 13 through a pin. The reversing gear 742 meshes with the two corresponding reversing racks 741, thereby enabling the two mounting brackets 731 on the same side to slide in opposite directions.

[0053] Reference Figure 5 and Figure 7 The bottom of the screw cap 15 is also provided with a plurality of adapting cylinders 8. In this embodiment of the application, the number of adapting cylinders 8 is set to four, and they are respectively located around the circumference of the screw cap 15. The top of each adapting cylinder 8 is integrally formed with the bottom of the screw cap 15.

[0054] Reference Figure 5 , Figure 6 and Figure 7 The cover plate 13 is also provided with a linkage assembly 75, which includes several linkage frames 751. In this embodiment, the number of linkage frames 751 is set to four, and they are located around the cover plate 13. One end of each linkage frame 751 is rotatably connected to one of the two mounting frames 731 located on the same side of the cover plate 13 via a pin. The other end is sleeved on the corresponding adapting cylinder 8 and is in contact with the side wall of the corresponding adapting cylinder 8, so that it can slide relative to the adapting cylinder 8 along the axial direction and can also rotate relative to the adapting cylinder 8.

[0055] Reference Figure 5 , Figure 6 and Figure 7In the initial state, when several corrugated filter papers 2 are stacked, each abutment plate 6 is not in contact with the corrugated filter paper 2. When it is necessary to assemble and fix the mounting frame 1, the cover plate 13 is placed on the top corrugated filter paper 2. At this time, the screw cap 15 is fitted onto the top of the cylinder 14. Then, the screw cap 15 is rotated so that the screw cap 15 is gradually tightened to the top of the cylinder 14. During this process, the screw cap 15 gradually approaches the top of the cover plate 13.

[0056] Reference Figure 5 , Figure 6 and Figure 7 During this process, the cap 15, through the adaptation cylinder 8, causes one end of each linkage frame 751 to shift, thereby causing the other end of each linkage frame 751 to slide along the corresponding mounting frame 731. At this time, the mounting frame 731, through the reversing rack 741 and the reversing gear 742, causes the mounting frame 731 on the same side to slide in the opposite direction, thereby causing each mounting frame 731 to shift along with the locking frame 732, so that each locking frame 732 is located on the sliding path of the corresponding insertion frame 72.

[0057] Reference Figure 5 , Figure 6 and Figure 7 Subsequently, the abutment plate 6 is rotated so that it adheres to the sidewall of each corrugated filter paper 2, thereby ensuring the stability of the corrugated filter paper 2. During this process, the abutment plate 6 drives the corresponding insertion frame 72 to slide through the transmission frame 71, so that one end of the insertion frame 72 is gradually inserted into the groove of the cover plate 13, and the end of the insertion frame 72 gradually abuts against the guide surface on the corresponding locking frame 732, so that the locking frame 732 makes way for the insertion frame 72. When the locking groove 721 corresponds to the locking frame 732, the elastic force of the elastic element 733 causes the locking frame 732 to reset and insert into the corresponding locking groove 721, locking the insertion frame 72 and ensuring the overall stability of the mounting frame 1.

[0058] The implementation principle of a gas filter element in Embodiment 2 of this application is as follows: When it is necessary to assemble and fix the mounting frame 1, the cover plate 13 is placed on the uppermost corrugated filter paper 2. At this time, the screw cap 15 is sleeved on the top of the cylinder 14. Then, the screw cap 15 is rotated so that the screw cap 15 is gradually tightened on the top of the cylinder 14. During this process, the screw cap 15 gradually approaches the top of the cover plate 13.

[0059] During this process, the cap 15, through the adaptation cylinder 8, causes one end of each linkage frame 751 to shift, thereby causing the other end of each linkage frame 751 to slide along the corresponding mounting frame 731. At this time, the mounting frame 731, through the reversing rack 741 and the reversing gear 742, causes the mounting frame 731 on the same side to slide in the opposite direction, thereby causing each mounting frame 731 to move along with the locking frame 732, so that each locking frame 732 is located on the sliding path of the corresponding insertion frame 72.

[0060] Subsequently, the abutment plate 6 is rotated so that it adheres to the sidewall of each corrugated filter paper 2, thereby ensuring the stability of the corrugated filter paper 2. During this process, the abutment plate 6 drives the corresponding insertion frame 72 to slide through the transmission frame 71, so that one end of the insertion frame 72 is gradually inserted into the groove of the cover plate 13, and the end of the insertion frame 72 gradually abuts against the guide surface on the corresponding locking frame 732, so that the locking frame 732 makes way for the insertion frame 72. When the locking groove 721 corresponds to the locking frame 732, the elastic force of the elastic element 733 causes the locking frame 732 to reset and insert into the corresponding locking groove 721, locking the insertion frame 72 and ensuring the overall stability of the mounting frame 1.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gas filter element, characterized in that: The device includes an installation frame (1) and several corrugated filter papers (2). The corrugated filter papers (2) are stacked along the length of the installation frame (1) and located inside the installation frame (1). The air outlet of each corrugated filter paper (2) is connected to the outside. Each corrugated filter paper (2) has an air inlet groove (3) in the middle. The installation frame (1) has an air inlet (4) at one end along its own length. Each corrugated filter paper (2) is connected to the air inlet (4).

2. The gas filter element according to claim 1, characterized in that: Each of the corrugated filter paper (2) includes a wave portion (21) and two support portions (22). Each wave portion (21) is configured as a wave and is located between the corresponding two support portions (22), and is connected to the corresponding two support portions (22) so that a plurality of air outlet channels (5) are formed between the wave portion (21) and the support portions (22).

3. A gas filter element according to claim 2, characterized in that: The extension direction of the air outlet channel (5) on each pair of adjacent corrugated filter papers (2) is different.

4. A gas filter element according to claim 1, characterized in that: The mounting frame (1) includes a base plate (11), a cylinder (14) and a cover plate (13). Several corrugated filter papers (2) are stacked on top of the base plate (11). The bottom of the cylinder (14) is connected to the base plate (11) and passes through each corrugated filter paper (2). The air inlet (4) communicates with the interior of the cylinder (14). Several ventilation holes (141) are also provided through the side wall of the cylinder (14). The cover plate (13) abuts against the top of the uppermost corrugated filter paper (2) and is connected to the cylinder (14).

5. A gas filter element according to claim 4, characterized in that: The mounting frame (1) also includes a screw cap (15), the top of the cylinder (14) extends upward through the cover plate (13), the screw cap (15) is threaded to one end of the cylinder (14) extending through the cover plate (13), and the bottom of the screw cap (15) abuts against the top of the cover plate (13) for fixing the cylinder (14) and the cover plate (13).

6. A gas filter element according to claim 5, characterized in that: The mounting frame (1) also includes several side frames (12), which are located around the base plate (11) and connected to the base plate (11). Each side frame (12) is provided with an abutment plate (6) and a fixing mechanism (7). One side of each abutment plate (6) is rotatably connected to the corresponding side frame (12), and the other side abuts against the side end of several corrugated filter papers (2). The fixing mechanism (7) is used to fix the corresponding abutment plate (6) to the cover plate (13).

7. A gas filter element according to claim 6, characterized in that: The fixing mechanism (7) includes a transmission frame (71), an insertion frame (72), and a locking assembly (73). One end of the transmission frame (71) is rotatably connected to the corresponding side frame (12), and the other end is rotatably connected to the insertion frame (72). The insertion frame (72) is slidably connected to the corresponding side frame (12), and one end is used to insert into the cover plate (13). The locking assembly (73) is used to lock the insertion frame (72) and the cover plate (13).

8. A gas filter element according to claim 7, characterized in that: The locking assembly (73) includes a mounting frame (731), a locking frame (732), and an elastic element (733). The mounting frame (731) is disposed inside the cover plate (13). The locking frame (732) is slidably connected to the mounting frame (731), and the sliding direction is different from the sliding direction of the corresponding insertion frame (72). Each insertion frame (72) is located on the sliding path of the corresponding locking frame (732). The elastic element (733) is used to allow the corresponding locking frame (732) to be continuously inserted into the corresponding insertion frame (72) through its own elastic force.

9. A gas filter element according to claim 8, characterized in that: The bottom of the cap (15) also extends with several adaptable cylinders (8). Each of the mounting brackets (731) is slidably connected to the cover plate (13), and the sliding direction is the same as the sliding direction of the corresponding locking bracket (732). The cover plate (13) is also provided with a linkage assembly (75). The linkage assembly (75) includes several linkage brackets (751). The linkage brackets (751) and the mounting brackets (731) are correspondingly arranged with the adaptable cylinders (8). One end of each linkage bracket (751) is sleeved on the corresponding adaptable cylinder (8) and is movably connected to the corresponding adaptable cylinder (8). The other end is rotatably connected to the corresponding mounting bracket (731).

10. A method for laying a gas filter element according to any one of claims 1-9, characterized in that: Includes the following steps: Stack the filter paper; stack several corrugated filter papers (2) in the mounting frame (1) such that the extension direction of the air outlet channel (5) on each two adjacent corrugated filter papers (2) is different, and the air inlet groove (3) on each corrugated filter paper (2) is connected to the air inlet (4). Fixing the filter paper: The top corrugated filter paper (2) is pressed against the cover and fixedly connected to the mounting frame (1) to achieve fixation.

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