Filtering equipment with backflow prevention effect

Abstract

The utility model discloses filtering equipment with an anti-backflow effect, and relates to the technical field of filtering equipment, the filtering equipment comprises a filtering box, a conveying pipe is arranged on the side wall of the filtering box, and a blocking block and a clamping ball are arranged, so that when the filtering equipment is used daily, the anti-backflow effect on water flow in the conveying pipe is improved; when the water flow on the side, away from the filter box, of the output pipe is too large, and the water flow on the side, close to the filter box, of the output pipe is small, at the moment, the water flow can push a blocking block to slide along the inner wall of a sliding groove, and sliding of the blocking block can drive a connecting rubber ball to be inserted into the outer wall of a connecting block; and meanwhile, when the filter screen set needs to be disassembled, a telescopic rod can be pulled to be connected with a second spring, so that a clamping ball is separated from the inner wall of a clamping groove, the filter screen set fixedly connected with the connecting rod is disassembled from the pipe through connection of a clamping rod, and the effect of conveniently disassembling, assembling and cleaning the filter screen set is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a filtering equipment with an anti-backflow effect. Background Technique

[0002] Filtering equipment refers to mechanical equipment or devices used for filtering, which are common general equipment in industrial production. Filtering equipment is generally divided into two categories: vacuum and pressure. Commonly used vacuum types include rotary drums, discs, horizontal belt types, etc., and commonly used pressure types include pressure filtration, pressing, dynamic filtration, and rotary types.

[0003] For example, the anti-backflow valve with a filtering effect disclosed in the publication number CN213064765U includes a valve body. The outer surface of the front end of the valve body is fixedly connected to the inner wall of the first flange, the rear side wall of the first flange is fixedly connected to the front side wall of the first rubber pad, and the outer surface of the front end of the valve body is fixedly connected to the inner wall of the second flange. In this anti-backflow valve with a filtering effect, when water flows through the valve body, two layers of filter meshes filter impurities in the water layer by layer. The filtered impurities accumulate on the filter meshes. Pull the handle to take out the filter meshes for cleaning to avoid blocking the valve. When water flows into the valve body, it impacts the stopper, causing the stopper to squeeze the extrusion rod, and then the water flows through the valve body and is conveyed. After the water flows through, the stopper will automatically reset, solving the problem that when backflow occurs without timely cleaning, the impurities filtered on the filter meshes will be backwashed.

[0004] However, when the existing filtering equipment is in use, although it can be used well, during the daily use of the filtering equipment, the anti-backflow effect on the inner wall of the conveying pipe is not high, and during the daily use of the filter box, when the box cover is opened, the cleaning effect of synchronously lifting the impurity partition board is not high.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a filtering equipment with an anti-backflow effect is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a filtering equipment with an anti-backflow effect to solve the problems of low anti-backflow effect on the inner wall of the conveying pipe and low cleaning effect of synchronously lifting the impurity partition board when the box cover is opened as mentioned in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A filtering device with an anti-backflow effect, including a filtering box. A conveying pipe is installed on the side wall of the filtering box, and an output pipe is installed on the other side of the filtering box. An observation window is provided on the outer wall of the filtering box. A connecting block is fixedly connected to the inner wall of the output pipe, and a blocking block is slidably connected to the inner wall of the output pipe. A sliding groove is opened at the connecting part of the inner wall of the output pipe and the blocking block. A connecting rubber ball located on one side of the connecting block is fixedly connected to the outer wall of the blocking block. A first spring is fixedly connected to the outer wall of the blocking block, and the other end of the first spring is fixedly connected to a hollowed-out block fixedly connected to the inner wall of the output pipe. A filter screen group is snap-connected to the inner wall of the output pipe. A connecting rod is fixedly connected to the outer wall of the filter screen group, and a clamping rod is fixedly connected to the outer wall of the connecting rod. The outer wall of the clamping rod is inserted into a connecting box fixedly connected to the outer wall of the output pipe. A telescopic rod is telescopically connected to the outer wall of the connecting box. A sliding block is fixedly connected to the outer wall of the telescopic rod. A second spring fixedly connected to the inner wall of the connecting box is sleeved on the outer wall of the telescopic rod. One end of the telescopic rod is fixedly connected to a clamping ball that is snap-connected to the outer wall of the clamping rod. A clamping groove is opened at the connecting part of the outer wall of the clamping rod and the clamping ball.

[0008] Further, a sealing cover is slidably connected to the top of the filtering box. A pulling rod is rotatably connected to the bottom of the sealing cover. One end of the pulling rod is rotatably connected to an impurity partition plate slidably connected to the inner wall of the filtering box. A lifting block is fixedly connected to the outer wall of the impurity partition plate. A fixing groove is opened at the connecting part of the inner wall of the filtering box and the lifting block.

[0009] Further, a circulation port is opened on the outer wall of the connecting block, and the outer wall contour of the blocking block is larger than the outer wall contour of the circulation port opened on the surface of the connecting block.

[0010] Further, the outer wall contour of the hollowed-out block is in the shape of a fan blade. Blocking blocks are provided on the inner walls of both the conveying pipe and the output pipe.

[0011] Further, two groups of connecting rods and clamping rods are provided, and the position distributions of the two groups of connecting rods and clamping rods are symmetrical about the central axis of the filter screen group.

[0012] Further, the other end of the second spring is fixedly connected to the outer wall of the sliding block. The outer wall contour of the clamping groove is in the shape of a "V", and the clamping balls are symmetrically arranged on both sides of the clamping rod.

[0013] Further, two groups of pulling rods are provided, and the position distributions of the two groups of pulling rods are symmetrical about the central axis of the sealing cover. The outer wall contour of the impurity partition plate is in the shape of a "U", and filter holes are opened on the surface of the impurity partition plate.

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

[0015] 1. By providing a blocking block and a clamping ball, when the filtration device is in daily use, in order to improve the anti-backflow effect of the water flow in the conveying pipe and achieve the effect of disassembling, assembling and cleaning the filter screen group after long-term use, when the water flow on the side of the output pipe away from the filtration tank is too large and the water flow on the side close to the filtration tank is small, at this time, the water flow will push the blocking block to slide along the inner wall of the chute. The sliding of the blocking block will drive the connecting rubber ball to insert into the outer wall of the connecting block, achieving the effect of conveniently blocking the connecting block. At the same time, when it is necessary to disassemble the filter screen group, the telescopic rod can be pulled. Under the connection of the second spring, the clamping ball is disengaged from the inner wall of the clamping groove, and through the connection of the clamping rod, the filter screen group fixedly connected to the connecting rod is disassembled from the pipe, playing a role in conveniently disassembling, assembling and cleaning the filter screen group;

[0016] 2. By providing an impurity partition plate, when the filtration tank is in daily use, in order to improve the effect of conveniently collecting and cleaning the impurities inside the filtration tank, the sealing cover can be slid. Under the rotational connection of the pulling rod, the impurity partition plate fixedly connected to the lifting block is driven to move upward along the inner wall of the fixed groove, so that the impurities collected on the inner wall of the impurity partition plate can be conveniently taken and cleaned, achieving the effect of improving the full filtration of impurities by the filtration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the filtration device;

[0018] Figure 2 It is a schematic cross-sectional view of the interior of the filtration device;

[0019] Figure 3 It is a schematic cross-sectional view of the interior of the conveying pipe;

[0020] Figure 4 It is a schematic diagram of the connection structure between the pulling rod and the impurity partition plate;

[0021] Figure 5 It is a schematic diagram of the connection structure between the clamping rod and the clamping ball.

[0022] In the figure: 1, filtration tank; 2, conveying pipe; 3, output pipe; 4, observation window; 5, connecting block; 6, blocking block; 7, chute; 8, connecting rubber ball; 9, first spring; 10, hollow block; 11, filter screen group; 12, connecting rod; 13, clamping rod; 14, connecting box; 15, telescopic rod; 16, sliding block; 17, second spring; 18, clamping ball; 19, clamping groove; 20, sealing cover; 21, pulling rod; 22, impurity partition plate; 23, lifting block; 24, fixed groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1: As Figures 1 - 5 shown, a filtering device with an anti-backflow effect includes a filtering box 1. A conveying pipe 2 is installed on the side wall of the filtering box 1, an output pipe 3 is installed on the other side of the filtering box 1, an observation window 4 is arranged on the outer wall of the filtering box 1, a connecting block 5 is fixedly connected to the inner wall of the output pipe 3, a blocking block 6 is slidably connected to the inner wall of the output pipe 3, a chute 7 is opened at the connecting part of the inner wall of the output pipe 3 and the blocking block 6, a connecting rubber ball 8 located on one side of the connecting block 5 is fixedly connected to the outer wall of the blocking block 6, a first spring 9 is fixedly connected to the outer wall of the blocking block 6, the other end of the first spring 9 is fixedly connected to a hollow block 10 fixedly connected to the inner wall of the output pipe 3, a filter screen group 11 is snap-fitted to the inner wall of the output pipe 3, a connecting rod 12 is fixedly connected to the outer wall of the filter screen group 11, a clamping rod 13 is fixedly connected to the outer wall of the connecting rod 12, a connecting box 14 fixedly connected to the outer wall of the output pipe 3 is inserted into the outer wall of the clamping rod 13, a telescopic rod 15 is telescopically connected to the outer wall of the connecting box 14, a sliding block 16 is fixedly connected to the outer wall of the telescopic rod 15, a second spring 17 fixedly connected to the inner wall of the connecting box 14 is sleeved on the outer wall of the telescopic rod 15, and a clamping ball 18 snap-fitted to the outer wall of the clamping rod 13 is fixedly connected to one end of the telescopic rod 15. A clamping groove 19 is opened at the connecting part of the outer wall of the clamping rod 13 and the clamping ball 18.

[0025] Further, a circulation port is opened on the outer wall of the connecting block 5, and the outer wall contour of the blocking block 6 is larger than the outer wall contour of the circulation port opened on the surface of the connecting block 5, which is beneficial to the outer wall contour of the blocking block 6 being larger than the outer wall contour of the circulation port opened on the surface of the connecting block 5, playing a role in effectively preventing backflow of the filtering device.

[0026] Further, the outer wall contour of the hollow block 10 is in the shape of a fan blade, and the blocking blocks 6 are arranged on the inner walls of both the conveying pipe 2 and the output pipe 3, which is beneficial to the blocking blocks 6 being arranged on the inner walls of both the conveying pipe 2 and the output pipe 3, playing a role in preventing backflow on the inner walls of both the conveying pipe 2 and the output pipe 3 simultaneously.

[0027] Further, two groups of connecting rods 12 and clamping rods 13 are provided, and the position distributions of the two groups of connecting rods 12 and clamping rods 13 are symmetrical about the central axis of the filter screen group 11, which is beneficial to the convenient snap-fitting installation of the filter screen group 11 by providing two groups of connecting rods 12 and clamping rods 13 with position distributions symmetrical about the central axis of the filter screen group 11.

[0028] Furthermore, the other end of the second spring 17 is fixedly connected to the outer wall of the sliding block 16. The outer wall contour of the card slot 19 is in a "V" shape, and the card balls 18 are symmetrically arranged on both sides of the card rod 13. The setting that the other end of the second spring 17 is fixedly connected to the outer wall of the sliding block 16 is conducive to facilitating the disassembly and cleaning of the filter screen group 11.

[0029] Embodiment 2: As Figure 1 , Figure 2 and Figure 4 shown, a filtering device with an anti-backflow effect proposed by the present utility model. Compared with Embodiment 1, as another implementation manner of the present utility model, a sealing cover 20 is slidably connected to the top of the filter box 1. A pulling rod 21 is rotatably connected to the bottom of the sealing cover 20. One end of the pulling rod 21 is rotatably connected to an impurity partition plate 22 that is slidably connected to the inner wall of the filter box 1. A lifting block 23 is fixedly connected to the outer wall of the impurity partition plate 22. A fixing groove 24 is formed at the connection part between the inner wall of the filter box 1 and the lifting block 23. During operation, by setting the impurity partition plate 22, when the filter box 1 is in daily use, in order to improve the effect of conveniently collecting and cleaning the impurities inside the filter box 1, the sealing cover 20 can be slid. Under the rotational connection of the pulling rod 21, the impurity partition plate 22 fixedly connected to the lifting block 23 is driven to move upward along the inner wall of the fixing groove 24, so that the impurities collected on the inner wall of the impurity partition plate 22 can be conveniently taken and cleaned, achieving the effect of improving the full filtration of impurities by the filtering device.

[0030] Furthermore, two groups of pulling rods 21 are provided. The position distributions of the two groups of pulling rods 21 are symmetrical about the central axis of the sealing cover 20. The outer wall contour of the impurity partition plate 22 is in a "U" shape, and filter holes are formed on the surface of the impurity partition plate 22. By setting two groups of pulling rods 21 with position distributions symmetrical about the central axis of the sealing cover 20, it is conducive to the convenient taking and cleaning of the impurities collected on the inner wall of the impurity partition plate 22, achieving the effect of improving the full filtration of impurities by the filtering device.

[0031] Working principle: When using a filtering device with an anti-backflow effect, first, during the daily use of the filtering device, in order to improve the anti-backflow effect of the water flow in the conveying pipe 2 and achieve the effect of disassembling, assembling and cleaning the filter screen group 11 during long-term use. When the water flow on the side of the output pipe 3 away from the filtering box 1 is too large and the water flow on the side close to the filtering box 1 is small, at this time, the water flow will push the blocking block 6 to slide along the inner wall of the chute 7, and the sliding of the blocking block 6 will drive the connecting rubber ball 8 to insert into the outer wall of the connecting block 5, achieving the effect of conveniently blocking the connecting block 5. At the same time, when it is necessary to disassemble the filter screen group 11, the telescopic rod 15 can be pulled. Under the connection of the second spring 17, the clamping ball 13 is separated from the inner wall of the clamping groove 19, and through the connection of the clamping rod 13, the filter screen group 11 fixedly connected to the connecting rod 12 is disassembled from the pipe, playing a role in conveniently disassembling, assembling and cleaning the filter screen group 11.

[0032] Finally, during the daily use of the filtering box 1, in order to improve the effect of conveniently collecting and cleaning the impurities inside the filtering box 1, the sealing cover 20 can be slid. Under the rotational connection of the pulling rod 21, the impurity partition plate 22 fixedly connected to the lifting block 23 is driven to move upward along the inner wall of the fixed groove 24, so that the impurities collected on the inner wall of the impurity partition plate 22 can be conveniently taken and cleaned, achieving the effect of improving the full filtration of impurities by the filtering device.

[0033] This is the working principle of the filtering device with an anti-backflow effect.

[0034] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A filtering device with an anti-backflow effect, comprising a filtering box (1), characterized in that, A delivery pipe (2) is installed on the side wall of the filtering box (1), an output pipe (3) is installed on the other side of the filtering box (1), an observation window (4) is arranged on the outer wall of the filtering box (1), a connecting block (5) is fixedly connected to the inner wall of the output pipe (3), a blocking block (6) is slidably connected to the inner wall of the output pipe (3), a sliding groove (7) is formed at the connecting part of the inner wall of the output pipe (3) and the blocking block (6), a connecting rubber ball (8) located on one side of the connecting block (5) is fixedly connected to the outer wall of the blocking block (6), a first spring (9) is fixedly connected to the outer wall of the blocking block (6), the other end of the first spring (9) is fixedly connected to a hollow block (10) fixedly connected to the inner wall of the output pipe (3), a filter screen group (11) is snap-connected to the inner wall of the output pipe (3), a connecting rod (12) is fixedly connected to the outer wall of the filter screen group (11), a clamping rod (13) is fixedly connected to the outer wall of the connecting rod (12), the outer wall of the clamping rod (13) is inserted into a connecting box (14) fixedly connected to the outer wall of the output pipe (3), a telescopic rod (15) is telescopically connected to the outer wall of the connecting box (14), a sliding block (16) is fixedly connected to the outer wall of the telescopic rod (15), a second spring (17) fixedly connected to the inner wall of the connecting box (14) is sleeved on the outer wall of the telescopic rod (15), a clamping ball (18) snap-connected to the outer wall of the clamping rod (13) is fixedly connected to one end of the telescopic rod (15), and a clamping groove (19) is formed at the connecting part of the outer wall of the clamping rod (13) and the clamping ball (18).

2. The filtering device with a backflow prevention effect according to claim 1, characterized in that, A sealing cover (20) is slidably connected to the top of the filtering box (1), a pulling rod (21) is rotatably connected to the bottom of the sealing cover (20), one end of the pulling rod (21) is rotatably connected to an impurity partition plate (22) slidably connected to the inner wall of the filtering box (1), a lifting block (23) is fixedly connected to the outer wall of the impurity partition plate (22), and a fixing groove (24) is formed at the connecting part of the inner wall of the filtering box (1) and the lifting block (23).

3. A filtering device with a backflow prevention effect according to claim 1, characterized in that, A circulation port is formed on the outer wall of the connecting block (5), and the outer wall contour of the blocking block (6) is larger than the outer wall contour of the circulation port formed on the surface of the connecting block (5).

4. A filtering device with an anti-backflow effect according to claim 1, characterized in that, The outer wall contour of the hollow block (10) is in the shape of a fan blade, and the blocking block (6) is arranged on the inner walls of both the delivery pipe (2) and the output pipe (3).

5. A filtering device with an anti-backflow effect according to claim 1, characterized in that, Both the connecting rod (12) and the clamping rod (13) are provided with two groups, and the position distributions of the two groups of the connecting rod (12) and the clamping rod (13) are symmetrical about the central axis of the filter screen group (11).

6. A filtering device with a backflow prevention effect according to claim 1, characterized in that, The other end of the second spring (17) is fixedly connected to the outer wall of the sliding block (16), the outer wall contour of the clamping groove (19) is in the shape of a "V", and the clamping balls (18) are symmetrically arranged on both sides of the clamping rod (13).

7. The filtering device with a backflow prevention effect according to claim 2, characterized in that, Two groups of the pulling rods (21) are provided, and the position distributions of the two groups of the pulling rods (21) are symmetrical about the central axis of the sealing cover (20). The outer wall contour of the impurity partition plate (22) is in the shape of a "U", and filter holes are formed on the surface of the impurity partition plate (22).

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