Filter screen convenient to clean
By using a snap-fit structure and a filter screen made of corrosion-resistant material, combined with a collection box and an L-shaped baffle, the problem of impurities directly impacting the filter screen in sewage treatment equipment is solved, extending the service life of the filter screen and simplifying the cleaning process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI PETROLEUM VOCATIONAL & TECH UNIV
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
In existing sewage treatment equipment, the surface of the filter screen is easily impacted by impurities in the sewage, affecting its service life.
The filter screen uses a snap-fit structure and corrosion-resistant materials, combined with a collection box and L-shaped baffle design to prevent impurities from directly impacting the filter screen surface. The mounting plate is fixed with bolts to achieve the blocking and collection of impurities.
It effectively protects the filter screen, extends its service life, and is simple to operate and easy to clean.
Smart Images

Figure CN224141565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and in particular to a filter that is easy to clean. Background Technology
[0002] Wastewater treatment equipment is the most commonly used type of purification equipment. It is an industrial device that effectively treats domestic sewage and industrial wastewater in urban areas, preventing sewage and pollutants from directly flowing into waterways and thus preventing pollution of the ecological environment. It plays a vital role in improving the ecological environment, enhancing the city's image, and promoting economic development. Wastewater treatment equipment is equipped with filters to remove impurities from the sewage.
[0003] For example, Chinese Patent Publication No. CN207680162U describes an easy-to-clean filter screen, including a housing. A water inlet pipe is fixedly connected to the top of the housing, and a water outlet pipe is fixedly connected to the bottom. A cover is fixedly connected to one side of the housing. Inside the cover, from right to left, a circular support plate, a first circular clamping plate, a filter screen body, and a second circular clamping plate are movably fitted. A connecting rod is fixedly connected to the side of the circular support plate near the cover, and the end of the connecting rod away from the circular support plate is fixedly connected to the inner wall of the cover. This easy-to-clean filter screen allows the filter screen body to be removed from the inside of the housing for cleaning through the cooperation of the cover, connecting rod, circular support plate, first circular clamping plate, second circular clamping plate, spring, threaded rod, and nut.
[0004] However, in the above solution, it is not convenient to cover the surface of the filter screen when the device is in use, which causes impurities in the sewage to directly impact the surface of the filter screen, thereby affecting the service life of the filter screen. Utility Model Content
[0005] This invention provides a filter screen that is easy to clean, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A filter screen that is easy to clean includes an upper mounting plate and a drain pipe. A lower mounting plate is connected to the side wall of the upper mounting plate via a snap-fit structure. Both the upper and lower mounting plates have slots on their side walls. A filter screen plate is disposed between the upper and lower mounting plates, and the filter screen plate is located in two slots. Both the upper and lower mounting plates have arc-shaped grooves on their side walls, and all four arc-shaped grooves are connected to the slots. A collection box is fixedly connected to the side wall of the lower mounting plate. The collection box fits against the filter screen plate and is located below the filter screen plate. A lower L-shaped baffle is fixedly connected to the side wall of the collection box. Both the lower L-shaped baffle and the collection box are located inside the drain pipe.
[0008] As a further improvement to this technical solution: the engaging structure includes two slots, both of which are located at the bottom of the upper mounting plate. Two inserts are fixedly connected to the top of the lower mounting plate. Both inserts have through holes on their sidewalls. The two inserts are adapted to the two slots. The sidewall of the upper mounting plate has two insertion holes, which pass through the two slots respectively.
[0009] As a further improvement to this technical solution: an upper L-shaped baffle is fixedly connected to the side wall of the upper mounting plate, and the upper L-shaped baffle is located inside the drain pipe.
[0010] As a further improvement to this technical solution: the side walls of both the upper L-shaped baffle and the lower L-shaped baffle are inclined, and the upper L-shaped baffle is located between the lower L-shaped baffle and the upper mounting plate.
[0011] As a further improvement to this technical solution: both the filter screen and the collection box are made of corrosion-resistant materials.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the device, through the cooperation of components such as the insertion block, drain pipe, collection box, and filter screen, can block impurities in sewage, prevent impurities from directly impacting the surface of the filter screen and affecting its service life, and is simple, convenient and quick to operate.
[0013] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0015] Figure 1 This is a front view schematic diagram of a filter screen that is easy to clean, as proposed in this utility model.
[0016] Figure 2 This is a right-side view of the structure of a filter screen that is easy to clean, as proposed in this utility model.
[0017] Figure 3 This is a cross-sectional schematic diagram of the mounting plate in a filter screen that is easy to clean, as proposed in this utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Upper mounting plate; 2. Insert block; 3. Lower mounting plate; 4. Upper L-shaped baffle; 5. Drain pipe; 6. Lower L-shaped baffle; 7. Collection mesh box; 8. Insertion hole; 9. Filter mesh plate; 10. Arc groove; 11. Card slot; 12. Slot; 13. Through hole. Detailed Implementation
[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described in more detail below by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0023] Please see Figure 1-3 In this embodiment of the present invention, a filter screen that is easy to clean includes an upper mounting plate 1 and a drain pipe 5. A lower mounting plate 3 is connected to the side wall of the upper mounting plate 1 via a snap-fit structure. Both the upper mounting plate 1 and the lower mounting plate 3 have slots 11 on their side walls. A filter screen plate 9 is provided between the upper mounting plate 1 and the lower mounting plate 3. The filter screen plate 9 is located in two slots 11. Both the upper mounting plate 1 and the lower mounting plate 3 have arc-shaped grooves 10 on their side walls. All four arc-shaped grooves 10 are connected to the slots 11. A collection box 7 is fixedly connected to the side wall of the lower mounting plate 3. The collection box 7 is in contact with the filter screen plate 9 and is located below the filter screen plate 9. Both the filter screen plate 9 and the collection box 7 are made of corrosion-resistant material. A lower L-shaped baffle 6 is fixedly connected to the side wall of the collection box 7. Both the lower L-shaped baffle 6 and the collection box 7 are located inside the drain pipe 5.
[0024] Please see Figure 1-3 The engaging structure includes two slots 12, both of which are located at the bottom of the upper mounting plate 1. Two inserts 2 are fixedly connected to the top of the lower mounting plate 3. Each insert 2 has a through hole 13 on its side wall, and the two inserts 2 are adapted to the two slots 12. The side wall of the upper mounting plate 1 has two insertion holes 8, which pass through the two slots 12 respectively. By placing the filter screen plate 9 in the slot 11 on the side wall of the lower mounting plate 3, and then locking the slot 11 on the side wall of the upper mounting plate 1 onto the outer ring side wall of the filter screen plate 9, the two inserts 2 enter the two slots 12, thereby limiting the position of the filter screen plate 9. Then, by using bolts to pass through the insertion holes 8 and the through holes 13 and fix them to the side wall of the drain pipe 5, the upper mounting plate 1 and the lower mounting plate 3 are fixed.
[0025] Please see Figure 1-3 An upper L-shaped baffle 4 is fixedly connected to the side wall of the upper mounting plate 1. The upper L-shaped baffle 4 is located inside the drain pipe 5. The side walls of the upper L-shaped baffle 4 and the lower L-shaped baffle 6 are both set in an inclined manner. The upper L-shaped baffle 4 is located between the lower L-shaped baffle 6 and the upper mounting plate 1. Through the lower L-shaped baffle 6 and the upper L-shaped baffle 4, impurities in the sewage can be blocked, preventing impurities from directly impacting the surface of the filter screen plate 9 and affecting the service life of the filter screen plate 9.
[0026] The working principle of this utility model is as follows: the filter screen plate 9 is placed in the slot 11 on the side wall of the lower mounting plate 3, and then the slot 11 on the side wall of the upper mounting plate 1 is engaged on the outer ring side wall of the filter screen plate 9, so that the two inserts 2 enter the two slots 12, thereby limiting the position of the filter screen plate 9. Then, the upper mounting plate 1 and the lower mounting plate 3 are fixed by using bolts to pass through the insertion hole 8 and the through hole 13 and fix them to the side wall of the drain pipe 5. The lower L-shaped baffle 6 and the upper L-shaped baffle 4 can block impurities in the sewage and prevent impurities from directly hitting the surface of the filter screen plate 9 and affecting the service life of the filter screen plate 9. The collection box 7 can facilitate the collection of impurities.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A filter screen for easy cleaning comprising an upper mounting plate (1) and a drain (5), characterized in that, The upper mounting plate (1) is connected to the lower mounting plate (3) via a snap-fit structure. Both the upper mounting plate (1) and the lower mounting plate (3) have slots (11) on their sidewalls. A filter screen (9) is provided between the upper mounting plate (1) and the lower mounting plate (3). The filter screen (9) is located in two slots (11). Both the upper mounting plate (1) and the lower mounting plate (3) have arc-shaped grooves (10) on their sidewalls. All four arc-shaped grooves (10) are connected to the slots (11). A collection box (7) is fixedly connected to the sidewall of the lower mounting plate (3). The collection box (7) is in contact with the filter screen (9) and is located below the filter screen (9). A lower L-shaped baffle (6) is fixedly connected to the sidewall of the collection box (7). Both the lower L-shaped baffle (6) and the collection box (7) are located inside the drain pipe (5).
2. The easy-to-clean filter screen of claim 1, wherein, The engaging structure includes two slots (12), both of which are located at the bottom of the upper mounting plate (1). The top of the lower mounting plate (3) is fixedly connected to two inserts (2). The side walls of the two inserts (2) are provided with through holes (13). The two inserts (2) are adapted to the two slots (12). The side walls of the upper mounting plate (1) are provided with two insertion holes (8), which pass through the two slots (12) respectively.
3. The easy-to-clean filter screen of claim 1, wherein, The upper mounting plate (1) has an upper L-shaped baffle (4) fixedly connected to its side wall, and the upper L-shaped baffle (4) is located inside the drain pipe (5).
4. The easy-to-clean filter screen according to claim 3, characterized in that, The upper L-shaped baffle (4) and the lower L-shaped baffle (6) are both inclined, and the upper L-shaped baffle (4) is located between the lower L-shaped baffle (6) and the upper mounting plate (1).
5. The easy-to-clean filter screen of claim 1, wherein, Both the filter screen (9) and the collection box (7) are made of corrosion-resistant materials.
Citation Information
Patent Citations
Filter screen convenient to wash
CN207680162U