Chemical filter convenient for replacing filter element

Abstract

The invention discloses a chemical filter convenient for replacing a filter element, and relates to the technical field of chemical filters. The device comprises a tubular shell, a filter element rotating frame and a filter element assembly, the filter element rotating frame comprises two rotating discs, and even pairs of pore plates are connected between the two rotating discs, so that the rotating discs are equally divided into even fan-shaped areas; wherein one rotating disc is provided with a plurality of air inlets, the other rotating disc is provided with a plurality of air outlets, and the air inlets and the air outlets are arranged in a staggered mode and are spaced through each pair of pore plates. The filter element assembly is inserted between each pair of pore plates, so that air flow entering from the air inlet is filtered by the filter element assembly and then discharged through the air outlet, and the filter element assembly is driven by the filter element rotating frame to rotate to the position of the dismounting opening, so that the filter element assembly is dismounted and replaced. According to the chemical filter disclosed by the invention, the filter element rotating frame drives the filter element assembly to rotate to the position of the dismounting opening, so that the replacement of the filter element is completed under the condition that the whole chemical filter is not dismounted, and the convenience and the replacement efficiency of the replacement of the filter element are effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical filters, and in particular relates to a chemical filter with a filter element that is easy to replace. Background Art

[0002] Chemical filter is a kind of air purification equipment. It is an innovative, efficient and energy-saving chemical filtration product. It is a new type of air purification equipment mainly used to deal with odor, toxic, harmful and corrosive gases in the air.

[0003] For example, Chinese utility model CN216259700U discloses a chemical filter that is easy to install on site. By unscrewing the cover plate from the disc, the first ring plate and the two second ring plates can be taken out from the disc, the zipper on the packaging bag can be unzipped, the activated carbon particles inside can be replaced, and the two filter screens can be cleaned and replaced at the same time.

[0004] However, when replacing the filter element of the chemical filter in the prior art, the entire chemical filter needs to be disassembled, and then the internal filter element is disassembled, which makes the disassembly and replacement of the filter element inconvenient and affects the overall filter element replacement efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a chemical filter that is easy to replace the filter element. The filter element rotating frame is driven to rotate by a rotating shaft, so that the filter element assembly is rotated to the disassembly and assembly port position, which is convenient for disassembly and replacement of the filter element assembly in sequence, thereby solving the problem of inconvenience in disassembly and replacement of existing filter elements, which affects the overall filter element replacement efficiency.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a chemical filter for easy replacement of filter elements, comprising a tubular housing, a filter element rotating frame and a filter element assembly, wherein the side wall at one end of the tubular housing is rotatably connected to a rotating shaft, one end of the rotating shaft located inside the tubular housing is fixedly connected to a driving wheel, and the other end is fixedly connected to a rotating handle; a disassembly and assembly port is provided on the side wall of the tubular housing, and a sealing cover plate matched therewith is connected thereto; the filter element rotating frame comprises two rotating disks and a fixing column connected to the center positions of the two rotating disks, and the circumferential surface of the rotating disks is in contact with the inner wall of the tubular housing; one of the rotating disks is fixedly connected to a driven wheel meshed with the driving wheel, and is used to drive the filter element through the rotating shaft. The rotating frame rotates; an even number of pairs of orifice plates evenly distributed in a circle are fixedly connected between the two rotating disks, so that the rotating disk is evenly divided into an even number of sector-shaped areas; one of the rotating disks is provided with a plurality of air inlets, and the other rotating disk is provided with a plurality of air outlets, and the air inlets and the air outlets are staggered with each other and spaced by each pair of orifice plates; the filter element assembly is inserted between each pair of orifice plates, and one side of the filter element assembly is fitted with the inner wall of the tubular shell, so that the airflow entering the air inlet is filtered by the filter element assembly and then discharged through the air outlet, and the filter element assembly is driven by the filter element rotating frame to rotate to the disassembly and assembly port position, so as to realize the disassembly and replacement of the filter element assembly.

[0008] As a preferred technical solution of the present invention, the inner walls at both ends of the tubular shell have step surfaces, the end faces of the two turntables are respectively against the step surfaces at both ends of the tubular shell, and a first sealing ring is installed on the end faces of the turntable to achieve sealing between the end faces of the turntable and the step surfaces of the tubular shell.

[0009] As a preferred technical solution of the present invention, the end face of the turntable is fixedly connected with an annular plate, the outer wall of the annular plate is in contact with the inner wall of the tubular shell, and a second sealing ring is installed on the outer wall of the annular plate to achieve sealing between the annular plate and the inner wall of the tubular shell.

[0010] As a preferred technical solution of the present invention, the tubular shell includes a filtering section and a disassembly section, both of which are provided with outward flanges, and the flanges are provided with connecting holes for bolt connection and fixing; the inner diameter of the disassembly section is smaller than the inner diameter of the filtering section, so that a step surface is formed between the flange of the disassembly section and the inner wall of the filtering section, and the disassembly of the filter element rotating frame as a whole is realized by disassembling the disassembly section.

[0011] As a preferred technical solution of the present invention, the fixing column is fixedly connected with a spring located between each pair of orifice plates, and is used to push the disassembled filter element assembly out of the disassembly port by using the spring.

[0012] As a preferred technical solution of the present invention, the fixing column is provided with a plurality of blind holes, and one end of the spring is installed in the blind hole. When the filter element assembly is inserted, the spring is compressed into the blind hole, so that the filter element assembly is tightly attached to the side of the fixing column.

[0013] As a preferred technical solution of the present invention, the filter element assembly includes a filter element fixing frame and a filter element installed in the filter element fixing frame; one side of the filter element fixing frame is a curved surface structure adapted to the inner wall of the tubular shell, so that the filter element fixing frame and the tubular shell fit tightly.

[0014] As a preferred technical solution of the present invention, the outer side surfaces of the filter element fixing frame are equipped with sealing strips, so that the filter element fixing frame is sealed with the two rotating disks, the fixing column and the inner wall of the tubular shell.

[0015] As a preferred technical solution of the present invention, the transmission ratio between the driving wheel and the driven wheel is 1, a fixing plate is fixedly connected to the outer wall of the tubular shell, and the surface of the fixing plate is provided with marks evenly distributed along the circumference of the rotating shaft; the marks correspond to the number of filter element assemblies, and when the rotating handle is rotated to correspond to the marked position, the corresponding filter element assembly corresponds to the position of the disassembly and assembly port.

[0016] As a preferred technical solution of the present invention, the marks are Arabic numerals.

[0017] The present invention has the following beneficial effects:

[0018] The present invention connects the filter element rotating frame by rotating it in the tubular shell, inserts the filter element assembly between each pair of orifice plates of the filter element rotating frame, staggers the air inlet and the air outlet, and enables the airflow to pass through the filter element assembly inserted between the orifice plates through each pair of orifice plates to achieve filtration. The filter element rotating frame is used to drive the filter element assembly to rotate to the disassembly and assembly port position, which is convenient for disassembly and replacement of the filter element assembly. The filter element can be replaced without disassembling the entire chemical filter, thereby effectively improving the convenience and efficiency of filter element replacement.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a chemical filter of the present invention that is easy to replace the filter element;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure from the rear view perspective;

[0023] Figure 3It is a structural exploded view of the tubular housing and the filter element rotating frame;

[0024] Figure 4 for Figure 1 The main view of

[0025] Figure 5 for Figure 4 Sectional view at AA in the middle;

[0026] Figure 6 for Figure 4 Sectional view at the middle BB;

[0027] Figure 7 is a schematic diagram of the structure of a tubular shell;

[0028] Figure 8 It is a structural schematic diagram of the filter element rotating frame and the filter element assembly;

[0029] Fig. 9 It is a structural schematic diagram of the filter element rotating frame;

[0030] Fig.10 It is a structural schematic diagram of the filter element assembly;

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1- tubular housing, 2- filter element rotating frame, 3- filter element assembly, 11- filtering section, 12- disassembly and assembly section, 101- rotating shaft, 102- driving wheel, 103- rotating handle, 104- disassembly and assembly port, 105- sealing cover plate, 106- flange, 107- fixing plate, 108- marking, 201- turntable, 202- fixing column, 203- orifice plate, 204- air inlet, 205- air outlet, 206- driven wheel, 207- first sealing ring, 208- annular plate, 209- second sealing ring, 210- spring, 211- blind hole, 301- filter element fixing frame, 302- filter element, 303- sealing strip. DETAILED DESCRIPTION

[0033] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] Embodiment 1

[0036] See also Figures 1 to 3 As shown, the present invention is a chemical filter for easy replacement of filter elements, comprising a tubular housing 1, a filter element rotating frame 2 and a filter element assembly 3. The filter element assembly 3 is mounted on the filter element rotating frame 2, and the filter element rotating frame 2 is rotatably connected inside the tubular housing 1.

[0037] The side wall at one end of the tubular housing 1 is rotatably connected to a rotating shaft 101, which is arranged along the radial direction of the tubular housing 1, and one end of the rotating shaft 101 located inside the tubular housing 1 is fixedly connected to a driving wheel 102, and the other end is fixedly connected to a rotating handle 103. The side wall of the tubular housing 1 is provided with a disassembly opening 104, and is connected to a sealing cover plate 105 that cooperates therewith.

[0038] like Figure 8 and 9 As shown, the filter element rotating frame 2 includes two turntables 201 and a fixed column 202 connected to the center position of the two turntables 201, and the circumferential surface of the turntable 201 is in contact with the inner wall of the tubular shell 1; one of the turntables 201 is fixedly connected to a driven wheel 206 meshing with the driving wheel 102, which is used to drive the filter element rotating frame 2 to rotate through the rotating shaft 101.

[0039] Among them, the inner walls at both ends of the tubular shell 1 have step surfaces, and the end faces of the two turntables 201 are respectively against the step surfaces at both ends of the tubular shell 1 to limit the axial position of the filter element rotating frame 2, and a first sealing ring 207 is installed on the end face of the turntable 201 to achieve sealing between the end face of the turntable 201 and the step surface of the tubular shell 1.

[0040] Specifically, Figure 4 , 6 7, the tubular housing 1 includes a filter section 11 and a disassembly section 12, the filter section 11 and the disassembly section 12 are both provided with an outwardly facing flange 106, the flange 106 is provided with a connection hole for bolt connection and fixing;

[0041] A step surface is provided on the inner wall at one end of the filter section 11, and the inner diameter of the disassembly section 12 is smaller than the inner diameter of the filter section 11, so that a step surface is formed between the flange 106 of the disassembly section 12 and the inner wall at the other end of the filter section 11. During installation, the turntable 201 at one end of the filter element rotating frame 2 abuts against the step surface of the filter section 11, and the turntable 201 at the other end abuts against the flange 106 of the disassembly section 12, thereby limiting the filter element rotating frame 2. By disassembling the disassembly section 12, the entire filter element rotating frame 2 can be disassembled and assembled.

[0042] like Figure 6 , 8 As shown in Figure 9, in order to improve the overall sealing performance, an annular plate 208 is fixedly connected to the end face of the turntable 201, the outer wall of the annular plate 208 fits the inner wall of the tubular shell 1, and a second sealing ring 209 is installed on the outer wall of the annular plate 208 to achieve sealing between the annular plate 208 and the inner wall of the tubular shell 1.

[0043] like Figure 5 As shown, an even number of pairs of orifice plates 203 evenly distributed in a circle are fixedly connected between the two rotating disks 201. In the figure, four pairs are taken as an example. The four pairs of orifice plates 203 divide the rotating disk 201 into four fan-shaped areas. One rotating disk 201 has two air inlets 204, and the other rotating disk 201 has two air outlets 205. The air inlets 204 and the air outlets 205 are staggered and arranged at intervals with each pair of orifice plates 203, that is, the two air inlets 204 are respectively connected to two opposite fan-shaped areas, and the two air outlets 205 are respectively connected to the other two fan-shaped areas.

[0044] like Figure 5 , 6 , 8 and 10, there are four filter element assemblies 3, which are respectively inserted between each pair of orifice plates 203, and one side of the filter element assembly 3 is in contact with the inner wall of the tubular housing 1. Specifically, the filter element assembly 3 includes a filter element fixing frame 301 and a filter element 302 installed in the filter element fixing frame 301. One side of the filter element fixing frame 301 is a curved surface structure adapted to the inner wall of the tubular housing 1, so that the filter element fixing frame 301 and the tubular housing 1 are in close contact.

[0045] At the same time, sealing strips 303 are installed on the outer sides of the filter element fixing frame 301 so as to achieve sealing between the filter element fixing frame 301 and the two rotating disks 201 , the fixing column 202 and the inner wall of the tubular housing 1 .

[0046] During the filtering process, the airflow enters the rectangular area through the air inlet 204 and is filtered by the filter element assemblies 3 on both sides before entering the adjacent rectangular area and then being discharged through the air outlet 205 to achieve filtering of the airflow.

[0047] When the filter element needs to be replaced, remove the sealing cover plate 105, rotate the rotating shaft 101 by rotating the handle 103, and utilize the meshing transmission of the driving wheel 102 and the driven wheel 206 to drive the filter element rotating frame 2 to rotate. The filter element assembly 3 is driven by the filter element rotating frame 2 to rotate to the position of the disassembly and assembly port 104, and the filter element assembly 3 can be pulled out as a whole. After replacing the filter element 302, the filter element assembly 3 can be inserted as a whole to realize the disassembly and replacement of the filter element assembly 3.

[0048] When one filter element is replaced, the filter element rotating frame 2 is rotated to rotate another filter element assembly 3 to the position of the disassembly and assembly port 104, and all filter elements are replaced in this way. The filter element can be replaced without disassembling the entire chemical filter, thereby effectively improving the convenience and efficiency of filter element replacement.

[0049] Embodiment 2

[0050] like Figure 6 and 9 As shown, on the basis of Example 1, the fixing column 202 is fixedly connected with a spring 210 located between each pair of orifice plates 203, which is used to use the spring 210 to push the filter element assembly 3 out of the disassembly port 104, so that after removing the sealing cover plate 105, when the filter element assembly 3 is rotated to the disassembly port 104, under the action of the spring 210, one side of the filter element assembly 3 will pop out of the disassembly port 104, thereby facilitating the filter element assembly 3 to be pulled out as a whole, thereby improving the convenience of disassembly.

[0051] In addition, the fixing column 202 is provided with a plurality of blind holes 211, and the blind holes 211 are evenly distributed between each pair of orifice plates 203, so that one end of the spring 210 is installed in the blind hole 211. When the filter element assembly 3 is inserted, the spring 210 is compressed into the blind hole 211, so that the filter element assembly 3 is tightly attached to the side of the fixing column 202, thereby further ensuring the overall sealing performance.

[0052] At the same time, the disassembly section 12 is located on one side of the air outlet 205, and the rotating shaft 101 is rotatably connected to the side wall of the disassembly section 12. Therefore, even if the rotating shaft 101 is positioned, or the sealing performance of the connection between the disassembly section 12 and the filter section 11 decreases, the leakage is filtered air, thereby ensuring the overall reliability of use.

[0053] Embodiment 3

[0054] like Figure 4As shown, on the basis of Example 1 or Example 2, the transmission ratio between the driving wheel 102 and the driven wheel 206 is 1, the outer wall of the tubular shell 1 is fixedly connected to a fixing plate 107, and the surface of the fixing plate 107 is provided with marks 108 evenly distributed along the circumference of the rotating shaft 101; the mark 108 corresponds to the number of filter element assemblies 3, and the mark 108 is an Arabic numeral, such as the mark 108 is 1, 2, 3 and 4, which correspond to four filter element assemblies 3 respectively.

[0055] When the rotating handle 103 is rotated to a position corresponding to the mark 108, the corresponding filter element assembly 3 corresponds to the position of the disassembly and assembly port 104, that is, when the rotating handle 103 is rotated to position 1 of the mark 108, the first filter element assembly 3 is rotated to the position of the disassembly and assembly port 104, and when it is rotated to position 2, the second filter element assembly 3 is rotated to the position of the disassembly and assembly port 104, and so on, thereby making the judgment of the position of the filter element assembly 3 and the disassembly and assembly port 104 more intuitive.

[0056] At the same time, by setting Arabic numerals, the number of filter elements that have been replaced and the number that have not been replaced can be confirmed more intuitively, thereby effectively avoiding missed or repeated replacements, greatly improving the reliability and convenience of use.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A chemical filter that is easy to replace the filter element, characterized in that: include: A tubular shell (1), wherein a side wall at one end of the tubular shell (1) is rotatably connected to a rotating shaft (101), one end of the rotating shaft (101) located inside the tubular shell (1) is fixedly connected to a driving wheel (102), and the other end is fixedly connected to a rotating handle (103); a disassembly opening (104) is provided on the side wall of the tubular shell (1), and a sealing cover plate (105) matching the disassembly opening (104) is connected thereto; A filter element rotating frame (2), the filter element rotating frame (2) comprising two rotating disks (201) and a fixing column (202) connected to the center positions of the two rotating disks (201), the circumferential surface of the rotating disk (201) being in contact with the inner wall of the tubular housing (1); one of the rotating disks (201) is fixedly connected to a driven wheel (206) meshing with the driving wheel (102), and is used to drive the filter element rotating frame (2) to rotate via the rotating shaft (101); An even number of pairs of orifice plates (203) evenly distributed in a circumference are fixedly connected between the two rotating disks (201), so that the rotating disk (201) is evenly divided into an even number of sector-shaped areas; one of the rotating disks (201) is provided with a plurality of air inlets (204), and the other rotating disk (201) is provided with a plurality of air outlets (205), and the air inlets (204) and the air outlets (205) are mutually staggered and spaced by each pair of orifice plates (203); A filter element assembly (3), wherein the filter element assembly (3) is inserted between each pair of orifice plates (203), and one side of the filter element assembly (3) is in contact with the inner wall of the tubular housing (1), so that the airflow entering the air inlet (204) is filtered by the filter element assembly (3) and then discharged through the air outlet (205), and the filter element assembly (3) is driven to rotate to the position of the disassembly and assembly port (104) through the filter element rotating frame (2), thereby realizing the disassembly and replacement of the filter element assembly (3).

2. A chemical filter with easy filter element replacement according to claim 1, characterized in that: The inner walls at both ends of the tubular shell (1) have step surfaces, the end surfaces of the two rotating disks (201) respectively abut against the step surfaces at both ends of the tubular shell (1), and the end surfaces of the rotating disks (201) are provided with first sealing rings (207) to achieve sealing between the end surfaces of the rotating disks (201) and the step surfaces of the tubular shell (1).

3. A chemical filter with easy filter element replacement according to claim 2, characterized in that: The end surface of the rotating disk (201) is fixedly connected to an annular plate (208), the outer wall of the annular plate (208) is in contact with the inner wall of the tubular housing (1), and a second sealing ring (209) is installed on the outer wall of the annular plate (208) to achieve sealing between the annular plate (208) and the inner wall of the tubular housing (1).

4. A chemical filter with easy filter element replacement according to claim 2 or 3, characterized in that: The tubular housing (1) comprises a filtering section (11) and a disassembly section (12), wherein the filtering section (11) and the disassembly section (12) are both provided with outwardly facing flanges (106), and the flanges (106) are provided with connection holes for connection and fixing with bolts; The inner diameter of the disassembly section (12) is smaller than the inner diameter of the filtering section (11), so that a step surface is formed between the flange (106) of the disassembly section (12) and the inner wall of the filtering section (11), and the entire filter element rotating frame (2) can be disassembled by disassembling the disassembly section (12).

5. A chemical filter with easy filter element replacement according to claim 1, characterized in that: The fixing column (202) is fixedly connected to a spring (210) located between each pair of orifice plates (203) and is used to push the disassembled filter element assembly (3) out of the disassembly port (104) using the spring (210).

6. A chemical filter with easy filter element replacement according to claim 5, characterized in that: The fixing column (202) is provided with a plurality of blind holes (211), and one end of the spring (210) is installed in the blind hole (211). When the filter element assembly (3) is inserted, the spring (210) is compressed into the blind hole (211), so that the filter element assembly (3) is tightly attached to the side surface of the fixing column (202).

7. A chemical filter with easy filter element replacement according to claim 1, 5 or 6, characterized in that: The filter element assembly (3) comprises a filter element fixing frame (301) and a filter element (302) installed in the filter element fixing frame (301); One side of the filter element fixing frame (301) is a curved surface structure adapted to the inner wall of the tubular housing (1), so that the filter element fixing frame (301) and the tubular housing (1) fit tightly.

8. A chemical filter with easy filter element replacement according to claim 7, characterized in that: The outer side surfaces of the filter element fixing frame (301) are all provided with sealing strips (303), so that the filter element fixing frame (301) is sealed with the two rotating disks (201), the fixing column (202) and the inner wall of the tubular housing (1).

9. A chemical filter with easy filter element replacement according to claim 1, characterized in that: The transmission ratio between the driving wheel (102) and the driven wheel (206) is 1, a fixing plate (107) is fixedly connected to the outer wall of the tubular housing (1), and a surface of the fixing plate (107) is provided with marks (108) evenly distributed along the circumference of the rotating shaft (101); The mark (108) corresponds to the number of filter element assemblies (3), and when the rotating handle (103) is rotated to a position corresponding to the mark (108), the corresponding filter element assembly (3) corresponds to the position of the disassembly and assembly port (104).

10. A chemical filter with easy filter element replacement according to claim 9, characterized in that: The marks (108) are Arabic numerals.

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