Filtering device with filter screen convenient to replace

Abstract

The utility model discloses a filtering device convenient to replace a filter screen, which relates to the technical field of filtering devices and comprises a filtering box, two equipment boxes are respectively fixed on two sides of the filtering box, two mounting components are mounted in the equipment boxes, the tops of the filtering box and the equipment boxes are connected with a box cover, a filtering component is placed in the filtering box, and the box cover is connected with the filtering box. The filter assembly comprises two mounting plates placed on steps on two sides of the filter box, and a filter screen is mounted between the two mounting plates. According to the utility model, the mounting assembly is arranged, the clamping block is used for fixing the filter assembly, and the assembly is simple to use and good in fixing effect, so that the filter assembly is simple and quick to replace, special tools are not needed, the operation efficiency is improved, and the maintenance time and cost are greatly reduced; the problems that an existing filtering assembly is inconvenient to mount and dismount, the working effect and time are affected, mechanical clamping energy consumption is high, and parts are prone to being damaged due to the fact that the clamping force is not changed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a filtering device convenient for replacing a filter screen. Background Technique

[0002] Sewage treatment is widely applied in various fields such as construction, agriculture, transportation, energy, petrochemical industry, environmental protection, urban landscape, medical treatment, and catering, and is also increasingly entering the daily lives of ordinary people. In the process of water treatment, as the core component of the filtering device, the performance and convenience of the filter screen directly affect the filtering effect and the overall maintenance cost. Traditional filtering devices often have problems such as difficult filter screen replacement and long maintenance time, which not only increase the labor intensity of operators but also affect the continuous and stable operation of the equipment.

[0003] A sewage treatment device convenient for replacing a filter screen with the publication number of CN215085183U includes a device body. A filter screen is fixedly installed on the inner wall of the device body. Installation plates are fixedly connected to both sides of the filter screen. A placement groove is opened on one side of the device body, and the placement groove is adapted to the installation plate. The driving end of the air cylinder drives two sets of sector gears to mesh. At the same time, the first movable rod rotates to drive the pushing block to move. The pushing block moves to push the sliding rod to move, so that the limiting ring is disengaged from the annular groove. At the same time, the sliding rod moves to drive the clamping plate to rotate. The clamping plate rotates to drive the fixed block to rotate, so that the guiding block slides along the guiding rod. The spring contracts. At the same time, the clamping plate rotates to drive the clamping block to rotate, so that the clamping block is away from the fixing plate. Then the connecting plate can be pulled to disengage the installation plate from the placement groove until the filter screen is pulled out of the device body, and then the filter screen can be replaced, which is convenient for installation and disassembly, convenient to use, has high practicability, and good use effect.

[0004] However, in the above solution, the clamping is driven by an air cylinder, the clamping force is inconvenient to adjust, it is easy to damage components and the energy consumption is high. Moreover, the design of pulling out the filter screen is not comprehensive enough in considering that impurities are likely to fall off into the box during the pulling-out process, affecting the subsequent filtering effect. Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a filtering device convenient for replacing a filter screen is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filtering device convenient for replacing a filter screen to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A filter device convenient for replacing a filter screen, including a filter box, with a device box fixed on each side of the filter box. Two installation components are installed inside the device box. A box cover is connected to the tops of the filter box and the device box. A filter component is placed inside the filter box. The filter component includes two mounting plates placed on the steps on both sides of the filter box. A filter screen is installed between the two mounting plates. The installation component includes a pressure rod slidably connected to the opening at the bottom of the device box. The pressure rod passes through the moving plate and is fixed to the moving plate. One side of the moving plate is beveled. Two first springs are connected between the bottom of the moving plate and the device box. One end of the moving rod is rotatably connected to the bottom of the moving plate, and the other end of the moving rod is rotatably connected to the top of the moving block. A clamping block is provided at the bottom of the moving block and is slidably connected to the groove in the device box. A fixed block is fixed to one side of the moving block. A mounting block is fixed to the inner side wall of the device box. An inclined block is slidably connected to the groove at the top of the mounting block. A second spring is fixed between the inclined block and the side wall of the device box. A sliding rod is fixed to one side of the inclined block and passes through the side wall of the device box.

[0007] Preferably, the filter screen is snap-fitted between the two mounting plates. Card slots are provided at the corresponding positions of the mounting plates and the fixed blocks. A handle is fixed to the top of the mounting plate.

[0008] Preferably, two convex blocks are fixed to the bottom of the mounting plate, and the convex blocks are inserted into the openings at the tops of the steps of the filter box.

[0009] Preferably, a pull ring is fixed to the outer end of the sliding rod located outside the device box.

[0010] Preferably, a rubber block is fixed to the top of the fixed block.

[0011] Preferably, a limiting block is fixed to each end of the pressure rod.

[0012] Preferably, three sealing gaskets are fixed to the bottom of the box cover, and the three sealing gaskets respectively correspond to the openings at the top of the filter box and the openings at the tops of the two device boxes.

[0013] Preferably, there are four installation components in total, which are centrally symmetrically distributed about the filter box and are respectively fixed to the four corners of the mounting plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The filtering device for facilitating the replacement of a filter screen provided by the present utility model is provided with an installation component, and a clamping block is used to fix the filtering component. This component is simple to use and has a good fixing effect, making the replacement process of the filtering component simple and fast. There is no need to use special tools, which improves the operation efficiency, greatly reduces the maintenance working time and cost, and solves the problems that the existing filtering components are not convenient for installation and disassembly, affecting the working effect and time, and the mechanical clamping has high energy consumption, and it is not easy to adjust the clamping force and is likely to damage the components.

[0016] 2. The filtering device for facilitating the replacement of a filter screen provided by the present utility model has the filter screen clamped and installed on both sides of the installation plate in the filtering component. The structure is stable, and the installation and disassembly processes are simplified. The detachable design of the filtering component makes the replacement of the filter screen more convenient, and at the same time, it is convenient to clean and repair it, solving the problem that the existing filter screen is not convenient for disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic perspective view of the filtering device for facilitating the replacement of a filter screen according to the present utility model Figure 1 ;

[0018] Figure 2 is a front sectional view of the filtering device for facilitating the replacement of a filter screen according to the present utility model;

[0019] Figure 3 is a schematic perspective view of the filtering device for facilitating the replacement of a filter screen according to the present utility model Figure 2 ;

[0020] Figure 4 is an enlarged view of part A of the filtering device for facilitating the replacement of a filter screen according to the present utility model;

[0021] Figure 5 is a schematic perspective view of the installation component of the filtering device for facilitating the replacement of a filter screen according to the present utility model;

[0022] Figure 6 is a schematic perspective view of the filtering component of the filtering device for facilitating the replacement of a filter screen according to the present utility model.

[0023] In the figure: 1. Filtering box; 2. Equipment box; 3. Installation component; 301. Pressing rod; 3011. Limiting block; 302. Moving plate; 303. First spring; 304. Activity rod; 305. Moving block; 306. Fixed block; 3061. Rubber block; 307. Installation block; 308. Slide rod; 3081. Pull ring; 309. Second spring; 310. Inclined block; 4. Box cover; 401. Sealing gasket; 5. Filtering component; 501. Installation plate; 5011. Card slot; 5012. Convex block; 5013. Handle; 502. Filter screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0026] Combined Figures 1 - 6 , a filter device for conveniently replacing a filter screen according to the present invention includes a filter box 1. On both sides of the filter box 1, there is a device box 2 fixed respectively. Inside the device box 2, there are two installation components 3 installed. The top of the filter box 1 and the device box 2 is connected with a box cover 4. Inside the filter box 1, there is a filter component 5 placed. The filter component 5 includes two mounting plates 501 placed on the steps on both sides of the filter box 1. Between the two mounting plates 501, there is a filter screen 502 installed. The installation component 3 includes a pressure rod 301 slidably connected to the opening at the bottom of the device box 2. The pressure rod 301 passes through the moving plate 302 and is fixed to the moving plate 302. One side of the moving plate 302 is a hypotenuse. Between the bottom of the moving plate 302 and the device box 2, there are two first springs 303 connected. One side of the bottom of the moving plate 302 is rotatably connected with a movable rod 304. The other end of the movable rod 304 is rotatably connected to the top of the moving block 305. At the bottom of the moving block 305, there is a clamping block slidably connected to the groove in the device box 2. One side of the moving block 305 is fixed with a fixed block 306. On the inner side wall of the device box 2, there is a mounting block 307 fixed. Inside the groove at the top of the mounting block 307, there is an inclined block 310 slidably connected. Between the inclined block 310 and the side wall of the device box 2, there is a second spring 309 fixed. One side of the inclined block 310 is fixed with a sliding rod 308, and the sliding rod 308 passes through the side wall of the device box 2.

[0027] Specifically, when this case is in use, after the entire filtering component 5 is placed inside the filtering box 1, the box cover 4 is closed. During the closing process, the box cover 4 presses down on the pressure rod 301, and the pressure rod 301 drives the moving plate 302 to move downward. The hypotenuse of the moving plate 302 squeezes the inclined block 310 to move backward, and the second spring 309 on the back of the inclined block 310 is compressed. The first spring 303 at the bottom of the moving plate 302 is compressed and the movable rod 304 rotates, driving the moving block 305 to move inward. The fixed block 306 at the top of the moving block 305 enters the mounting plate 501 to complete clamping. At this time, the moving plate 302 moves to the bottom of the inclined block 310, and the elastic force generated by the second spring 309 squeezes the inclined block 310 back to its initial state. At this time, the inclined block 310 presses the moving plate 302 against the bottom, that is, the filtering component 5 is fixed. When replacement is needed, after opening the box cover 4, pulling the sliding rod 308 drives the inclined block 310 to move backward, and the elastic force generated by the first spring 303 pushes the moving plate 302 out, driving the moving block 305 at the bottom to move, so that the fixed block 306 moves away and the fixation is released. Then the entire filtering component 5 can be taken out for replacement. This component is simple to use and has a good fixing effect, making the replacement process of the filtering component 5 simple and fast, without the need to use special tools, greatly reducing the maintenance working time and cost.

[0028] The following further describes the present utility model in conjunction with embodiments.

[0029] Embodiment 1:

[0030] Combined with Figures 2 - 3 and Figure 6 , the filter screen 502 is snap-fitted between two mounting plates 501. The mounting plates 501 are provided with card slots 5011 at positions corresponding to the fixed blocks 306. A handle 5013 is fixed on the top of the mounting plate 501. The filter screen 502 is snap-fitted on both sides of the mounting plate 501. The structure is stable, and the installation and disassembly processes are simplified. The detachable design of the filtering component 5 makes the replacement of the filter screen 502 more convenient, and at the same time facilitates its cleaning and maintenance. The design of the card slot 5011 makes the fixing effect more obvious and reliable. Fixing the handle 5013 on the top of the mounting plate 501 is convenient for placing and taking out the entire filtering component 5.

[0031] Two convex blocks 5012 are fixed at the bottom of the mounting plate 501. The convex blocks 5012 are inserted into the openings at the top of the steps of the filtering box 1. Fixing the convex blocks 5012 at the bottom of the mounting plate 501 and inserting them into the top openings of the filtering box 1 for preliminary positioning can prevent it from displacing in the horizontal direction, thus affecting subsequent fixation. After preliminary positioning, the subsequent fixing position is accurate and effective.

[0032] Embodiment 2:

[0033] Combined with Figures 2 - 5, at one end of the outer side of the equipment box 2, a pull ring 3081 is fixed to the sliding rod 308. Fixing the pull ring 3081 on one side of the sliding rod 308 provides a support point for the operation, facilitating grasping and making the operation simpler and more convenient.

[0034] At the top of the fixing block 306, a rubber block 3061 is fixed. Arranging a rubber block 3061 on the fixed side of the fixing block 306 can increase the clamping force and has a certain protective effect, preventing component wear during fixation and increasing the service life of the device.

[0035] At both ends of the pressing rod 301, a limiting block 3011 is respectively fixed. The limiting block 3011 at the upper end of the pressing rod 301 facilitates pressing during the operation process, while the limiting block 3011 at the lower end of the pressing rod 301 is used for limiting, preventing the pressing rod 301 from detaching from the equipment box 2 due to excessive elastic force during rebound, and increasing safety.

[0036] At the bottom of the box cover 4, three sealing gaskets 401 are fixed. The three sealing gaskets 401 respectively correspond to the top opening of the filter box 1 and the two top openings of the equipment box 2. Designing the box cover 4 as an integral type for the filter box 1 and the equipment box 2 simplifies the operation steps, and only the overall opening and closing is required. Designing the sealing gaskets 401 strengthens the sealing effect, preventing external dust, water vapor or other impurities from entering the interior of the box body, and can effectively strengthen the connection between the box cover 4 and the box body.

[0037] There are four installation components 3 in total, which are symmetrically distributed about the filter box 1 and are respectively fixed at the four corners of the mounting plate 501. Designing installation components 3 at the four corners can strengthen the fixing effect, improve the stability of the device to ensure the filtering effect, and make the force evenly distributed to reduce the damage of the device.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for conveniently replacing a filter screen, comprising a filter box (1), characterized in that: An equipment box (2) is fixed on each side of the filter box (1), two installation components (3) are installed inside the equipment box (2), a box cover (4) is connected to the top of the filter box (1) and the equipment box (2), a filter component (5) is placed inside the filter box (1), and the filter component (5) comprises two installation plates (501) placed on steps on both sides of the filter box (1), and a filter screen (502) is installed between the two installation plates (501); The mounting assembly (3) comprises a pressure rod (301) slidably connected to an opening at the bottom of the equipment box (2); the pressure rod (301) passes through a movable plate (302) and is fixed on the movable plate (302); one side of the movable plate (302) has an oblique edge; two first springs (303) are connected between the bottom of the movable plate (302) and the equipment box (2); one side of the bottom of the movable plate (302) is rotatably connected to a movable rod (304); the other end of the movable rod (304) is rotatably connected to the top of a movable block (305); A card block is provided at the bottom of the block (305) and is slidably connected in a groove of the equipment box (2); a fixed block (306) is fixed on one side of the movable block (305); a mounting block (307) is fixed on the inner side wall of the equipment box (2); an inclined block (310) is slidably connected in the groove at the top of the mounting block (307); a second spring (309) is fixed between the inclined block (310) and the side wall of the equipment box (2); a sliding rod (308) is fixed on one side of the inclined block (310), and the sliding rod (308) passes through the side wall of the equipment box (2).

2. A filter device for convenient filter screen replacement according to claim 1, characterized in that: The filter screen (502) is mounted between two mounting plates (501), and slots (5011) are provided at positions corresponding to the mounting plates (501) and the fixing blocks (306), and a handle (5013) is fixed on the top of the mounting plates (501).

3. A filter device for convenient filter screen replacement according to claim 2, characterized in that: Two protrusions (5012) are fixed at the bottom of the mounting plate (501), and the protrusions (5012) are inserted into the openings at the top of the steps of the filter box (1).

4. The filter device for convenient filter screen replacement according to claim 1, characterized in that: The sliding rod (308) is located on one end of the outer side of the equipment box (2) and is fixed with a pull ring (3081).

5. The filter device for convenient filter screen replacement according to claim 1, characterized in that: A rubber block (3061) is fixed on the top of the fixing block (306).

6. The filter device for convenient filter screen replacement according to claim 1, characterized in that: A limiting block (3011) is fixed to each of the two ends of the pressure rod (301).

7. The filter device for convenient filter screen replacement according to claim 1, characterized in that: Three sealing gaskets (401) are fixed to the bottom of the box cover (4), and the three sealing gaskets (401) correspond to the top opening of the filter box (1) and the two top openings of the equipment box (2), respectively.

8. The filter device for convenient filter screen replacement according to claim 1, characterized in that: The mounting components (3) are provided at four locations in total, distributed symmetrically about the center of the filter box (1), and respectively fix the four corners of the mounting plate (501).

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