Purification tower with observation window

Abstract

The utility model discloses a purification tower with an observation window. An observation hole is formed in a purification tower main body; the mounting frame is arranged on the purification tower main body and surrounds the periphery of the observation hole, a limiting groove is concavely formed in the inner side wall of the mounting frame, the depth direction of the limiting groove is arranged in the radial direction of the observation hole, and the limiting groove surrounds the periphery of the observation hole; the light-transmitting window plate is arranged on the mounting frame, the outer periphery of the light-transmitting window plate is embedded in the limiting groove, and the observation window covers an outer end hole opening of the observation hole. The light-transmitting window plate is mounted on the purification tower main body through the mounting frame, the mounting frame is arranged around the hole axis of the observation hole, the limiting groove is located in the inner side wall of the mounting frame, and when the outer periphery of the light-transmitting window plate is embedded in the limiting groove of the mounting frame, the outer periphery of the light-transmitting window plate is fixed by the mounting frame; and at the moment, the stress at each part of the outer periphery of the light-transmitting window plate is relatively uniform, so that the risk that the light-transmitting window plate is possibly broken due to non-uniform stress at the fixed position is reduced, and the service life of the light-transmitting window plate is favorably prolonged.

Description

Technical Field

[0001] This utility model relates to purification towers, and more particularly to a purification tower with an observation window. Background Technology

[0002] The production process may generate some harmful gases, which need to be treated by a purification tower before being discharged or reused. Some existing purification towers typically have observation holes for easy monitoring of the internal conditions. The outer opening of the observation hole is covered by a light-transmitting window plate, and the outer periphery of the light-transmitting window plate is directly locked to the outside of the purification tower body using multiple screws arranged at intervals around the hole's axis. However, this method of securing the outer periphery of the light-transmitting window plate with multiple screws results in uneven stress, with greater stress at the screw locations and less stress in other areas. This uneven stress may cause the light-transmitting window plate to crack during use, affecting its service life. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a purification tower with an observation window, which can reduce the risk of the light-transmitting window panel breaking during use.

[0004] A purification tower with an observation window according to an embodiment of the present invention includes a purification tower body, a mounting frame, and a light-transmitting window plate. The purification tower body has an observation hole; the mounting frame is disposed on the purification tower body, surrounding the outer periphery of the observation hole, and a limiting groove is recessed on the inner sidewall of the mounting frame, the depth direction of which is radially arranged along the observation hole, and the limiting groove surrounds the outer periphery of the observation hole; the light-transmitting window plate is disposed on the mounting frame, and the outer periphery of the light-transmitting window plate is embedded in the limiting groove, the observation window covering the outer end opening of the observation hole.

[0005] The purification tower with an observation window according to the present utility model embodiment has at least the following beneficial effects: the light-transmitting window plate is installed on the main body of the purification tower through the mounting frame. Since the mounting frame is arranged around the hole axis of the observation hole and the limiting groove is located on the inner side wall of the mounting frame, when the outer periphery of the light-transmitting window plate is embedded in the limiting groove of the mounting frame, the outer periphery of the light-transmitting window plate is fixed by the mounting frame. At this time, the force on the outer periphery of the light-transmitting window plate is relatively uniform, thereby reducing the risk of cracking of the light-transmitting window plate due to uneven force on the fixed position, which is conducive to improving the service life of the light-transmitting window plate.

[0006] According to some embodiments of this utility model, the mounting frame is annular, the light-transmitting window panel is circular, and the mounting frame includes a first arc-shaped member, a second arc-shaped member, and a locking mechanism. Both the first and second arc-shaped members are semi-circular arcs, and both are provided with the limiting groove. The first arc-shaped member has a first end and a second end, and the second arc-shaped member has a third end and a fourth end. The first end of the first arc-shaped member is rotatably disposed at the third end of the second arc-shaped member. The locking mechanism is disposed between the second end and the fourth end, and has a locked state and an unlocked state. In the locked state, the second end is abutted against the fourth end, and the locking mechanism locks the position of the second end relative to the fourth end. In the unlocked state, the first arc-shaped member can rotate relative to the second arc-shaped member, so that the second end can move away from the fourth end.

[0007] According to some embodiments of this utility model, the hole axis of the observation hole is set in the horizontal direction, the limiting groove includes a first groove segment and a second groove segment, the first groove segment is set on the first arc-shaped member, the second groove segment is set on the second arc-shaped member, the second arc-shaped member is fixedly connected to the purification tower body, the groove opening of the second groove segment is set upward, and in the locked state, the second arc-shaped member is located below the first arc-shaped member.

[0008] According to some embodiments of the present invention, the purification tower body is provided with a boss, the observation hole is provided on the boss, the light-transmitting window plate is located on one side of the boss, the outer periphery of the boss is provided with a flange portion along the radial direction of the observation hole, the flange portion is arranged around the hole axis of the observation hole, and the flange portion is embedded in the limiting groove.

[0009] According to some embodiments of the present invention, the flange portion is located at one end of the boss near the light-transmitting window panel, and the flange portion is in contact with the light-transmitting window panel.

[0010] According to some embodiments of the present invention, the flange portion is annular, and the outer diameter of the flange portion is the same as the diameter of the light-transmitting window panel.

[0011] According to some embodiments of the present invention, the second arc-shaped member is fixedly disposed on the flange portion; the mounting frame further includes a threaded fastener, the second arc-shaped member is provided with a threaded through hole, the axis of the threaded through hole is parallel to the axis of the observation hole, the threaded fastener is threadedly connected to the threaded through hole, and one end of the threaded fastener abuts against the side of the flange portion away from the light-transmitting window plate.

[0012] According to some embodiments of the present invention, the mounting frame further includes a bolt and nut pair, the first arc-shaped member is provided with a first shaft hole at the first end, the second arc-shaped member is provided with a second shaft hole at the third end, and the bolt and nut pair passes through the first shaft hole and the second shaft hole.

[0013] According to some embodiments of the present invention, the locking mechanism includes a first latching member, an elastic member, and a second latching member. The first latching member is disposed at the second end, and the second latching member is rotatably disposed at the fourth end and can rotate to a position where it latches or separates from the first latching member. The elastic member is disposed between the second latching member and the second arc-shaped member and is used to drive the second latching member to rotate to a position where it latches with the first latching member.

[0014] According to some embodiments of the present invention, the middle part of the second snap-fit ​​member is pivotally connected to the outer side of the second arc-shaped member, the first snap-fit ​​member is provided with a first hook portion, the second snap-fit ​​member is provided with a second hook portion, the first hook portion and the second hook portion correspond to each other, and the elastic member and the second hook portion are placed on both sides of the rotation axis of the second snap-fit ​​member.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a three-dimensional schematic diagram of the purification tower according to an embodiment of the present utility model;

[0018] Figure 2 This is an embodiment of the present utility model. Figure 1 A sectional view of a portion of the structure along the AA direction;

[0019] Figure 3 This is a schematic diagram of the mounting frame when it is closed according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the mounting frame when it is open according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the locking mechanism according to an embodiment of the present invention.

[0022] Figure label:

[0023] The purification tower body is 100, the observation hole is 110, the boss is 120, and the flange is 121;

[0024] Mounting frame 200, limiting groove 201, first groove segment 202, second groove segment 203, first arc-shaped component 210, first end 211, second end 212, second arc-shaped component 220, third end 221, fourth end 222, locking mechanism 230, first snap-fit ​​component 231, elastic component 232, second snap-fit ​​component 233, threaded fastener 240, bolt and nut pair 250;

[0025] 300mm translucent window panel. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figures 1 to 5This invention relates to a purification tower with an observation window, comprising a purification tower body 100, a mounting frame 200, and a light-transmitting window plate 300. The purification tower body 100 has an observation hole 110. The mounting frame 200 is disposed on the purification tower body 100, surrounding the outer periphery of the observation hole 110. A limiting groove 201 is recessed on the inner sidewall of the mounting frame 200, with its depth direction along the radial direction of the observation hole 110, and the limiting groove 201 surrounding the outer periphery of the observation hole 110. The light-transmitting window plate 300 is disposed on the mounting frame 200, with its outer periphery embedded in the limiting groove 201, and the observation window covers the outer end opening of the observation hole 110.

[0031] The light-transmitting window panel 300 is installed on the main body 100 of the purification tower via the mounting frame 200. Since the mounting frame 200 is set around the hole axis of the observation hole 110, and the limiting groove 201 is located on the inner side wall of the mounting frame 200, when the outer periphery of the light-transmitting window panel 300 is embedded in the limiting groove 201 of the mounting frame 200, the outer periphery of the light-transmitting window panel 300 is fixed by the mounting frame 200. At this time, the force on the outer periphery of the light-transmitting window panel 300 is relatively uniform, thereby reducing the risk of cracking of the light-transmitting window panel 300 due to uneven force on the fixed position, which is conducive to improving the service life of the light-transmitting window panel 300 and thus reducing the maintenance frequency of the purification tower.

[0032] In this embodiment, the mounting frame 200 is annular, and the light-transmitting window panel 300 is circular. The mounting frame 200 includes a first arc-shaped member 210, a second arc-shaped member 220, and a locking mechanism 230. Both the first arc-shaped member 210 and the second arc-shaped member 220 are semi-circular arc-shaped, and both are provided with limiting grooves 201. The first arc-shaped member 210 has a first end 211 and a second end 212, and the second arc-shaped member 220 has a third end 221 and a fourth end 222. Part 211 is rotatably disposed at the third end 221 of the second arc-shaped member 220. Locking mechanism 230 is disposed between the second end 212 and the fourth end 222. Locking mechanism 230 has a locked state and an unlocked state. In the locked state, the second end 212 is engaged with the fourth end 222, and locking mechanism 230 locks the position of the second end 212 relative to the fourth end 222. In the unlocked state, the first arc-shaped member 210 can rotate relative to the second arc-shaped member 220 so that the second end 212 can move away from the fourth end 222.

[0033] Specifically, the light-transmitting window panel 300 is a circular plate. When the light-transmitting window panel 300 needs to be installed or replaced, the user can switch the locking mechanism 230 to the unlocked state. At this time, the first arc-shaped member 210 can rotate and open relative to the second arc-shaped member 220. Since both the first arc-shaped member 210 and the second arc-shaped member 220 are semi-circular arcs, the light-transmitting window panel 300 can be directly embedded into the limiting groove 201 of the first arc-shaped member 210 or the second arc-shaped member 220. Subsequently, the first arc-shaped member 210 rotates and closes relative to the second arc-shaped member 220, and then the locking mechanism 230 can relock the position of the second end 212 relative to the fourth end 222. The aforementioned mounting frame 200 is suitable for circular light-transmitting window panels 300. The assembly of the mounting frame 200 and the light-transmitting window panel 300 is relatively simple and convenient, and the installation of the light-transmitting window panel 300 is relatively smooth.

[0034] It is understood that in other embodiments, the mounting frame 200 and the light-transmitting window panel 300 may also be other shapes, such as the light-transmitting window panel 300 being rectangular. In this case, the mounting frame 200 may also be rectangular. The mounting frame 200 may include a detachably connected first strip and a second strip. When the first strip and the second strip are separated, the light-transmitting window panel 300 can be installed. Subsequently, the first strip and the second strip are reconnected and fixed to achieve the fixation of the light-transmitting window panel 300.

[0035] In this embodiment, the hole axis of the observation hole 110 is set in the horizontal direction. The limiting groove 201 includes a first groove segment 202 and a second groove segment 203. The first groove segment 202 is set on the first arc-shaped member 210, and the second groove segment 203 is set on the second arc-shaped member 220. The second arc-shaped member 220 is fixedly connected to the purification tower body 100. The groove opening of the second groove segment 203 is set upward. In the locked state, the second arc-shaped member 220 is located below the first arc-shaped member 210. Since the second arc-shaped component 220 is fixed to the main body 100 of the purification tower, when the locking mechanism 230 is in the unlocked state, the second arc-shaped component 220 remains fixed, while the first arc-shaped component 210 rotates, causing the mounting frame 200 to open. At this time, the slot of the second groove 203 faces upward, and the user can directly insert the light-transmitting window panel 300 from top to bottom into the second groove 203. Then, the first arc-shaped component 210 is rotated until it closes with the second arc-shaped component 220, and the locking mechanism 230 is switched back to the locked state. With the slot of the second groove 203 facing upwards, when the light-transmitting window panel 300 is inserted into the second arc-shaped component 220, the second arc-shaped component 220 can support the light-transmitting window panel 300. This eliminates the need for the user to use additional equipment to temporarily support the light-transmitting window panel 300, making it convenient for the user to rotate the first arc-shaped component 210 to the position where it aligns with the second arc-shaped component 220. This simplifies the process of installing and replacing the light-transmitting window panel 300. Compared to fixing the observation window panel with multiple screws, the installation process is much simpler.

[0036] In this embodiment, the purification tower body 100 is provided with a boss 120, an observation hole 110 is provided on the boss 120, and a light-transmitting window plate 300 is located on one side of the boss 120. A flange portion 121 is provided on the outer periphery of the boss 120 along the radial direction of the observation hole 110. The flange portion 121 is arranged around the hole axis of the observation hole 110 and is embedded in the limiting groove 201. The flange portion 121 of the boss 120 and the outer periphery of the light-transmitting window plate 300 are both embedded in the limiting groove 201. The mounting frame 200 and the light-transmitting window plate 300 are relatively accurately positioned on the purification tower body 100, which facilitates the fit between the light-transmitting window plate 300 and the boss 120.

[0037] In this embodiment, the flange portion 121 is located at one end of the boss 120 near the light-transmitting window panel 300, and the flange portion 121 contacts the light-transmitting window panel 300. When the flange portion 121 contacts and adheres to the light-transmitting window panel 300, the contact area between the outer periphery of the light-transmitting window panel 300 and the boss 120 can be larger, and the contact force between the light-transmitting window panel 300 and the boss 120 can be distributed more evenly, further reducing the risk of uneven force on the outer periphery of the light-transmitting window panel 300.

[0038] In this embodiment, the flange 121 is annular, and its outer diameter is the same as that of the light-transmitting window 300. The flange 121 and the light-transmitting window 300 can better fit the depth of the limiting groove 201. Specifically, the outer diameter of the limiting groove 201 is also the same as that of the light-transmitting window 300, resulting in a relatively compact structure and relatively good sealing performance.

[0039] In this embodiment, the second arc-shaped member 220 is fixedly disposed on the flange portion 121; the mounting frame 200 also includes a threaded fastener 240, the second arc-shaped member 220 is provided with a threaded through hole, the axis of the threaded through hole is parallel to the axis of the observation hole 110, the threaded fastener 240 is threadedly connected to the threaded through hole, and one end of the threaded fastener 240 abuts against the side of the flange portion 121 away from the light-transmitting window plate 300.

[0040] When the mounting frame 200 is opened, one end of the threaded fastener 240 abuts against the flange 121, and the second arc-shaped member 220 is fixed to the flange 121 by friction. The mounting frame 200 can be disassembled by loosening the threaded fastener 240 to eliminate the friction between the second arc-shaped member 220 and the flange 121. When the mounting frame 200 is closed, the flange 121 is embedded in the annular limiting groove 201, and the first arc-shaped member 210 and the second arc-shaped member 220 cooperate, allowing the mounting frame 200 to be well fixed to the flange 121. The above-described mounting frame 200 structure is relatively convenient to install, as it eliminates the need for drilling holes in the flange 121.

[0041] Furthermore, the threaded fastener 240 abuts against the side of the flange portion 121 away from the light-transmitting window plate 300, which helps the sidewall of the limiting groove 201 to apply a force toward the flange portion 121 to the light-transmitting window plate 300, making the light-transmitting window plate 300 fit more tightly with the boss 120 and improving airtightness.

[0042] In this embodiment, the mounting frame 200 further includes a bolt and nut assembly 250. A first arc-shaped member 210 has a first shaft hole at its first end 211, and a second arc-shaped member 220 has a second shaft hole at its third end 221. The bolt and nut assembly 250 passes through the first and second shaft holes. When the bolt and nut assembly 250 is not tightened, if the locking mechanism 230 is in the unlocked state, the first arc-shaped member 210 can rotate relative to the second arc-shaped member 220. When the bolt and nut assembly 250 is tightened, it can further lock the position of the first arc-shaped member 210 relative to the second arc-shaped member 220, thereby increasing the locking strength of the first arc-shaped member 210 and the second arc-shaped member 220.

[0043] It is conceivable that in other embodiments, the first end 211 of the first arc-shaped member 210 may also be rotatably connected to the third end 221 of the second arc-shaped member 220 via a hinge, or the first end 211 of the first arc-shaped member 210 may be pivotally connected to the third end 221 of the second arc-shaped member 220 via a pivot. Those skilled in the art can make specific choices according to actual needs.

[0044] In this embodiment, the locking mechanism 230 includes a first latching member 231, an elastic member 232, and a second latching member 233. The first latching member 231 is disposed at the second end 212, and the second latching member 233 is rotatably disposed at the fourth end 222 and can rotate to a position where it can latch or disengage from the first latching member 231. The elastic member 232 is disposed between the second latching member 233 and the second arc-shaped member 220 and is used to drive the second latching member 233 to rotate to a position where it latches with the first latching member 231. In the normal state, the first and second conditions are closed, and the elastic member 232 keeps the second latching member 233 latched with the first latching member 231, keeping the mounting frame 200 in the closed state, which is beneficial for the continuous installation and fixation of the light-transmitting window panel 300. When it is necessary to open the mounting frame 200 to replace the light-transmitting window panel 300, the user can drive the second latching member 233 to rotate to disengage from the first latching member 231, causing the elastic member 232 to be compressed. At this time, the user can rotate the first arc-shaped member 210. When the first and second conditions are met, under the action of the elastic element 232, the second locking element 233 can automatically rotate to the position where it engages with the first locking element 231. The locking mechanism 230 described above has a relatively simple structure and is relatively easy to use.

[0045] Specifically, the elastic element 232 is a spring, one end of the elastic element 232 abuts against the second snap-fit ​​element 233, and the other end of the elastic element 232 abuts against the outer side of the second arc-shaped element 220.

[0046] In this embodiment, the middle part of the second latching member 233 is pivotally connected to the outer side of the second arc-shaped member 220. The first latching member 231 is provided with a first hook portion, and the second latching member 233 is provided with a second hook portion, with the first hook portion corresponding to the second hook portion. The elastic member 232 and the second hook portion are located on both sides of the rotation axis of the second latching member 233. The user can press the second latching member 233, causing it to swing around the rotation axis, thereby separating the second hook portion of the second latching member 233 from the first hook portion of the first latching member 231. When the user releases the second latching member 233, it automatically rotates back to its original position under the action of the elastic member 232. The second latching member 233 adopts a lever structure, which is relatively simple and reliable.

[0047] Specifically, since purification towers are often installed in open-air locations, the mounting frame 200 is usually made of corrosion-resistant metal materials, such as stainless steel or aluminum, which can be selected by those skilled in the art according to actual needs.

[0048] Specifically, the light-transmitting window panel 300 is a transparent component, which can be made of transparent PVC board or glass board, etc., and those skilled in the art can choose according to actual needs.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A purification tower with an observation window, characterized in that, include: The main body of the purification tower (100) is equipped with an observation hole (110); An installation frame (200) is provided on the main body (100) of the purification tower. The installation frame (200) is arranged around the outer periphery of the observation hole (110). A limiting groove (201) is recessed on the inner side wall of the installation frame (200). The depth direction of the limiting groove (201) is arranged radially along the observation hole (110). The limiting groove (201) surrounds the outer periphery of the observation hole (110). A light-transmitting window panel (300) is disposed in the mounting frame (200), and the outer periphery of the light-transmitting window panel (300) is embedded in the limiting groove (201). The observation window covers the outer end opening of the observation hole (110).

2. The purification tower with an observation window according to claim 1, characterized in that: The mounting frame (200) is annular, and the light-transmitting window panel (300) is circular. The mounting frame (200) includes a first arc-shaped component (210), a second arc-shaped component (220), and a locking mechanism (230). Both the first arc-shaped component (210) and the second arc-shaped component (220) are semi-circular arcs. Both the first arc-shaped component (210) and the second arc-shaped component (220) are provided with the limiting groove (201). The first arc-shaped component (210) has a first end (211) and a second end (212), and the second arc-shaped component (220) has a third end (221) and a fourth end (222). The first end (211) of the first arc-shaped component (210) The third end (221) of the second arc-shaped member (220) is rotatably disposed therebetween the second end (212) and the fourth end (222). The locking mechanism (230) has a locked state and an unlocked state. In the locked state, the second end (212) is engaged with the fourth end (222), and the locking mechanism (230) locks the position of the second end (212) relative to the fourth end (222). In the unlocked state, the first arc-shaped member (210) can rotate relative to the second arc-shaped member (220) so that the second end (212) can move away from the fourth end (222).

3. The purification tower with an observation window according to claim 2, characterized in that: The observation hole (110) has its axis set horizontally. The limiting groove (201) includes a first groove segment (202) and a second groove segment (203). The first groove segment (202) is set on the first arc-shaped member (210), and the second groove segment (203) is set on the second arc-shaped member (220). The second arc-shaped member (220) is fixedly connected to the purification tower body (100). The opening of the second groove segment (203) is set upward. In the locked state, the second arc-shaped member (220) is located below the first arc-shaped member (210).

4. The purification tower with an observation window according to claim 2, characterized in that: The purification tower body (100) is provided with a boss (120), the observation hole (110) is provided on the boss (120), the light-transmitting window plate (300) is located on one side of the boss (120), the outer periphery of the boss (120) is provided with a flange (121) along the radial direction of the observation hole (110), the flange (121) is arranged around the hole axis of the observation hole (110), and the flange (121) is embedded in the limiting groove (201).

5. The purification tower with an observation window according to claim 4, characterized in that: The flange (121) is located at one end of the boss (120) near the light-transmitting window plate (300), and the flange (121) is in contact with the light-transmitting window plate (300).

6. The purification tower with an observation window according to claim 4, characterized in that: The flange (121) is annular, and the outer diameter of the flange (121) is the same as the diameter of the light-transmitting window panel (300).

7. The purification tower with an observation window according to claim 4, characterized in that: The second arc-shaped member (220) is fixedly disposed on the flange portion (121); the mounting frame (200) further includes a threaded fastener (240), the second arc-shaped member (220) is provided with a threaded through hole, the axis of the threaded through hole is parallel to the axis of the observation hole (110), the threaded fastener (240) is threadedly connected to the threaded through hole, and one end of the threaded fastener (240) abuts against the side of the flange portion (121) away from the light-transmitting window plate (300).

8. The purification tower with an observation window according to claim 2, characterized in that: The mounting frame (200) also includes a bolt and nut pair (250), the first arc-shaped member (210) is provided with a first shaft hole at the first end (211), the second arc-shaped member (220) is provided with a second shaft hole at the third end (221), and the bolt and nut pair (250) passes through the first shaft hole and the second shaft hole.

9. The purification tower with an observation window according to claim 2, characterized in that: The locking mechanism (230) includes a first latching member (231), an elastic member (232), and a second latching member (233). The first latching member (231) is disposed at the second end (212), and the second latching member (233) is rotatably disposed at the fourth end (222) and can rotate to a position to latch or separate from the first latching member (231). The elastic member (232) is disposed between the second latching member (233) and the second arc-shaped member (220) and is used to drive the second latching member (233) to rotate to a position to latch with the first latching member (231).

10. The purification tower with an observation window according to claim 9, characterized in that: The middle part of the second snap-fit ​​member (233) is pivotally connected to the outside of the second arc-shaped member (220). The first snap-fit ​​member (231) is provided with a first hook portion, and the second snap-fit ​​member (233) is provided with a second hook portion. The first hook portion corresponds to the second hook portion. The elastic member (232) and the second hook portion are placed on both sides of the rotation axis of the second snap-fit ​​member (233).

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