Visual filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a visual filter which comprises a shell, a filter cavity is arranged in the shell, a filter screen is arranged in the filter cavity, an input channel communicated with the filter cavity is arranged on the side wall of the shell, an output channel is arranged at one end of the shell, an observation hole is arranged at the other end of the shell, and an observation window is arranged outside the observation hole. And the observation window is hermetically connected with the flange plate through a locking mechanism. According to the utility model, the observation window is arranged, so that the cleanliness of liquid in the filter cavity can be observed in time, and the filter screen can be replaced in time as required to ensure the filter effect; by arranging the locking mechanism, the observation window can be tightly combined with the flange plate in a closed state and kept in a sealed state, liquid leakage is prevented, the observation window can be easily opened by rotating the rotary handle when the filter screen needs to be replaced or cleaned, and convenience and practicability are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, and specifically relates to a visual filter. Background Technology

[0002] Filters are indispensable devices in pipelines transporting media, typically installed at the inlet end of other equipment. Structurally, they usually consist of a housing and a filter screen. The housing has an inlet and an outlet, which are perpendicular to each other, serving the purpose of filtration. Currently, common filters on the market suffer from drawbacks such as inconvenient cleaning and replacement of the filter screen, and the inability to monitor the cleanliness and wear of the filter screen during use. Due to the high flow velocity of the water entering at the fluid inlet, if the filter screen is damaged by the water flow or has excessive impurities on its surface, the filtration effect will be affected. Therefore, it is necessary to design a filter that allows for real-time monitoring of the cleanliness of the internal liquid while facilitating filter screen replacement, in order to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a visual filter to solve the problems mentioned in the background section.

[0004] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows:

[0005] A visual filter includes a housing, a filter chamber inside the housing, a filter screen inside the filter chamber, an input channel communicating with the filter chamber on the side wall of the housing, an output channel communicating with the filter chamber at one end of the housing, the input channel and the output channel being arranged perpendicularly, and an observation hole communicating with the filter chamber at the other end of the housing opposite to the output channel, the observation hole having a flange threadedly connected to the outer end face of the observation hole, an observation window rotatably mounted on the flange, and the observation window being sealed to the flange by a locking mechanism.

[0006] As a further improvement, the locking mechanism includes a slide rail fixedly mounted on the outer surface of the observation window, a slider slidably connected to the slide rail, an insert plate fixedly connected to the slider, a connecting block at a corresponding position on the flange end face, an insertion hole on the connecting block, and the insert plate slidingly engaging with the insertion hole.

[0007] As a further improvement, a mounting base is fixedly provided on the side of the observation window away from the connecting block. A cam block is installed on the mounting base. The cam block has a fan-shaped structure. The center of the cam block is rotatably connected to the mounting base. A rotating handle is fixedly connected to the center of the cam block. The side of the cam block abuts against the insert plate.

[0008] As a further improvement, the locking mechanism also includes a return spring, one end of which is connected to the mounting base and the other end of which is connected to the slider.

[0009] As a further improvement, the filter screen is a hollow cylindrical structure, the filter screen side wall is provided with filter holes penetrating the cylinder wall, and both ends of the filter screen are fixedly connected with a baffle ring, and the outer circumferential side wall of one of the baffle rings is slidably connected with the inner side wall of the output channel.

[0010] As a further improvement, the shell side wall is provided with a water drainage hole penetrating the filter cavity at a position opposite to the input channel, and the water drainage hole is threadedly connected with a water drainage switch.

[0011] Due to the adoption of the above technical scheme, the filter has the following beneficial effects:

[0012] The visual filter provided by the utility model can observe the cleanliness of liquid in the filter cavity in time through the observation window, and the filter screen can be replaced in time according to the need, so that the filtering effect is ensured.

[0013] The locking mechanism can make the observation window tightly combine with the flange plate in the closed state and keep the sealing state, so that liquid leakage is prevented, and the observation window can be opened relatively easily by rotating the rotary handle when the filter screen needs to be replaced or cleaned, so that the utility model is convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structural schematic view of the utility model;

[0015] Figure 2 is the sectional view of the shell of the utility model;

[0016] Figure 3 is the internal structural schematic view of the utility model;

[0017] Figure 4 is the schematic view of the locking mechanism of the utility model.

[0018] Wherein: 1-shell, 101-filter cavity, 102-input channel, 103-output channel, 104-observation hole, 2-filter screen, 201-baffle ring, 3-flange plate, 4-observation window, 5-locking mechanism, 501-slideway, 502-sliding block, 503-plug, 504-connection block, 505-mounting seat, 506-cam block, 507-rotary handle, 508-return spring, 6-water drainage switch. DETAILED DESCRIPTION

[0019] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0020] like Figures 1-4 As shown, a visual filter includes a housing 1, a filter chamber 101 inside the housing 1, and a filter screen 2 inside the filter chamber 101 for filtering impurities in the liquid. An input channel 102 communicating with the filter chamber 101 is provided on the side wall of the housing 1, and an output channel 103 communicating with the filter chamber 101 is provided at one end of the housing 1. The input channel 102 and the output channel 103 are arranged perpendicularly. An observation hole 104 communicating with the filter chamber 101 is provided at the other end of the housing 1, opposite to the output channel 103. This observation hole 104 allows for confirmation of the cleanliness of the filter screen 2, facilitating timely replacement or cleaning of the filter screen 2. It also allows for the installation of the filter screen 2. A flange 3 is threaded to the outer end face of the observation hole 104, and an observation window 4 is rotatably mounted on the flange 3. Specifically, the observation window 4 is made of a high-strength transparent material, such as tempered borosilicate glass, and is sealed to the flange 3 via a locking mechanism 5. During use, liquid flows into the filter chamber 101 from the input channel 102 and out from the output channel 103. During this process, particulate impurities such as sand and rust in the liquid cannot pass through the filter holes on the filter screen 2 and are therefore filtered out. Most of the impurities settle to the bottom of the filter chamber 101, while a small portion adheres to the filter screen 2. The cleanliness of the liquid in the filter chamber 101 can be observed in a timely manner through the observation window 4, and the filter screen 2 can be replaced as needed to ensure filtration effectiveness. The locking mechanism 5 controls the connection status between the observation window 4 and the flange 3.

[0021] In this embodiment, the locking mechanism 5 includes a slide rail 501 fixedly mounted on the outer surface of the observation window 4, a slider 502 slidably connected to the slide rail 501, an insert plate 503 fixedly connected to the slider 502, a connecting block 504 on the end face of the flange 3, and an insertion hole on the connecting block 504. The insert plate 503 slides in conjunction with the insertion hole. Figure 4 As described above, after the insert plate 503 slides to the right and is inserted into the socket, the observation window 4 cannot be opened to prevent liquid leakage. After the insert plate 503 slides out of the socket to the left, the observation window 4 can be opened outward to carry out related operations.

[0022] In this embodiment, the mounting seat 505 is fixed on the side of the observation window 4 away from the connecting block 504, and the cam block 506 is mounted on the mounting seat 505. The cam block 506 has a fan-shaped structure, and the center of the cam block 506 is rotationally connected to the mounting seat 505. The rotating handle 507 is fixedly connected to the center of the cam block 506, and the side surface of the cam block 506 is matched with the end surface of the plug plate 503. Specifically, the rotating handle 507 is rotated to drive the cam block 506 to rotate. When the arc surface of the cam block 506 gradually approaches the end surface of the plug plate 503, the distance between the end surface of the plug plate 503 and the center of the cam block 506 gradually increases, that is, the cam block 506 pushes the plug plate 503 to move to the right, and the observation window 4 cannot be opened after the plug plate 503 is inserted into the insertion hole.

[0023] In this embodiment, the locking mechanism 5 further includes a return spring 508, one end of the return spring 508 is connected to the mounting seat 505, and the other end of the return spring 508 is connected to the sliding block 502. Specifically, the return spring 508 always applies a leftward pulling force to the sliding block 502. When the straight edge of the cam block 506 abuts against the end surface of the plug plate 503, the distance between the end surface of the plug plate 503 and the center of the cam block 506 gradually decreases. Under the action of the pulling force of the return spring 508, the sliding block 502 and the plug plate 503 move to the left until the plug plate 503 is withdrawn from the insertion hole, and then the observation window 4 can be opened outward.

[0024] In this embodiment, the filter screen 2 has a hollow cylindrical structure, the filter screen 2 has filter holes penetrating the wall of the cylinder, and the filter screen 2 is fixedly connected with two retaining rings 201. The outer circumferential side wall of one of the retaining rings 201 is slidingly connected to the inner side wall of the output channel 103, and the outer side wall of the other retaining ring 201 is slidingly connected to the inner side wall of the observation hole 104. Specifically, the output channel 103 is provided with an annular limiting step, the end wall of the retaining ring 201 abuts against the limiting step, the outer side wall of the other retaining ring 201 is slidingly connected to the inner side wall of the observation hole 104, the outer side wall of the filter screen 2 has a diameter smaller than the hole diameter of the filter cavity 101, and impurities pass through the gap between the outer side wall of the filter screen 2 and the inner wall of the filter cavity 101 and settle at the bottom of the filter cavity 101.

[0025] In this embodiment, the shell 1 is provided with a drain hole penetrating the filter cavity 101 at a position opposite to the input channel 102, and the drain hole is threadedly connected with a drain switch 6. After the drain switch is opened, the impurities at the bottom of the filter cavity 101 can be discharged with the liquid, facilitating cleaning.

[0026] In use, liquid enters the filter cavity 101 from the input channel 102, and the impurities such as sand in the liquid are filtered by the filter screen 2. Most of the impurities settle at the bottom of the filter cavity 101, and a small amount of impurities adhere to the surface of the filter screen 2. Through the transparent observation window 4, the liquid in the filter cavity 101 and the cleanliness of the filter screen 2 can be observed, and the filter screen 2 can be cleaned or replaced as needed. The specific operation method is as follows: rotate the rotating handle 507 and rotate the cam block 506. Under the action of the pull force of the return spring 508, the sliding block 502 gradually moves to the left. When the straight edge of the cam block 506 abuts against the end face of the plug plate 503, the plug plate 503 is withdrawn from the insertion hole, and the observation window 4 is opened outward. At this time, the filter screen 2 can be taken out of the filter cavity 101. After cleaning, the filter screen 2 is reloaded into the filter cavity 101 along the observation hole. When the end wall of the retaining ring 201 abuts against the limiting step in the output channel 102, it indicates that the filter screen 2 has been installed in place. After closing the observation window 4, rotate the rotating handle 507 to drive the cam block 506 to rotate. When the arc surface of the cam block 506 abuts against the end face of the plug plate 503, the distance between the end face of the plug plate 503 and the center of the cam block 506 gradually increases, that is, the cam block 506 pushes the plug plate 503 to move to the right. After the plug plate 503 is inserted into the insertion hole, the observation window 4 cannot be opened.

[0027] The specific embodiments of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A visualizing filter comprising a housing, characterized in that, The shell is internally provided with a filtering cavity, the filtering cavity is internally provided with a filter screen, the shell sidewall is provided with an input channel penetrating the filtering cavity, one end of the shell is provided with an output channel penetrating the filtering cavity, the input channel and the output channel are vertically arranged, the other end of the shell is provided with an observation hole penetrating the filtering cavity at a position opposite to the output channel, the observation hole outer end face is threadedly connected with a flange plate, the flange plate is rotatably installed with an observation window, and the observation window is sealingly connected with the flange plate through a locking mechanism.

2. The visualization filter of claim 1, wherein, The locking mechanism comprises a sliding rail fixedly arranged on the outer surface of the observation window, a sliding block slidingly connected on the sliding rail, and a plug plate fixedly connected on the sliding block, a connecting block is arranged on the flange end face at a corresponding position, and a plug hole is arranged on the connecting block, and the plug plate and the plug hole are slidingly matched.

3. The visualization filter of claim 1, wherein, A mounting seat is fixedly arranged on one side of the observation window away from the connecting block, a cam block is mounted on the mounting seat, the cam block is a sector structure, the center of the cam block is rotatably connected with the mounting seat, a rotating handle is fixedly connected with the center of the cam block, and the side surface of the cam block is abuttingly matched with the end surface of the plug plate.

4. The visualization filter of claim 3, wherein, The locking mechanism further comprises a return spring, one end of the return spring is connected with the mounting seat, and the other end of the return spring is connected with the sliding block.

5. The visualization filter of claim 1, wherein, The filter screen is a hollow cylindrical structure, the filter screen sidewall is provided with a filter hole penetrating the cylinder wall, both ends of the filter screen are fixedly connected with a stop ring, the outer circumferential sidewall of one of the stop rings is slidingly connected with the inner sidewall of the output channel, and the outer sidewall of the other stop ring is slidingly connected with the inner sidewall of the observation hole.

6. The visualization filter of claim 1, wherein, The shell sidewall is provided with a water drainage hole penetrating the filtering cavity at a position opposite to the input channel, and the water drainage hole is threadedly connected with a water drainage switch.

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