A small filter that is convenient for cleaning

Abstract

The present invention relates to the field of filters, and particularly to a small filter that is convenient for cleaning, including a water inlet pipe, a water outlet pipe, a cover plate, a housing, etc.; the cover plate is detachably connected to the upper side of the housing; the housing is communicated with the water inlet pipe; the housing is communicated with the water outlet pipe. The present invention realizes driving the connecting seat and the limiting rod to rotate by a motor; thereby driving the blocking block to move up and down, thereby opening and closing the water inlet groove; when the water inlet groove is closed, the filter screen intercepts the waste residue in the waste water; when the water inlet groove is opened, by guiding the water flow, the waste residue intercepted by the filter screen is introduced into the annular filter cotton, and then the waste residue collected in the annular filter cotton is squeezed by the rotating ring and the connecting rod, and the waste water in the waste residue is re-squeezed into the purification cavity. After being squeezed, the waste residue will shrink and agglomerate, reducing the occupied space; then workers do not need to frequently replace and clean the filter screen and the annular filter cotton in the filter, greatly improving the filtering effect of the filter on chemical waste water.

Description

Technical Field

[0001] The present invention relates to the field of filters, and particularly to a small filter that is convenient for cleaning. Background Art

[0002] The treatment of chemical industrial wastewater is a complex process involving various technologies and methods, aiming to remove harmful substances in the wastewater so that it meets the discharge standards or reuse requirements.

[0003] When the existing technology filters chemical industrial wastewater through a filter, since the existing chemical industrial wastewater is usually treated by air flotation and flocculation equipment, a large amount of foamy waste residue will be generated after air flotation and flocculation treatment. When filtering through a filter, because the foamy waste residue will absorb water and expand, it has a large volume and is extremely likely to block the filter screen and filter cotton in the filter, affecting the filtering effect of the filter. As a result, workers need to frequently clean and replace the filter screen and filter cotton, which is rather troublesome. Summary of the Invention

[0004] In order to overcome the disadvantages that a large amount of foamy waste residue will be generated after chemical industrial wastewater is treated by air flotation or flocculation, these foamy waste residues will absorb water and expand, have a large volume, and are extremely likely to block the filter screen and filter cotton in the filter, affecting the filtering effect of the filter, and causing workers to need to frequently clean and replace the filter screen and filter cotton, which is rather troublesome, the present invention provides a small filter that is convenient for cleaning.

[0005] Technical Solution: A small filter that is convenient for cleaning, comprising a water inlet pipe, a water outlet pipe, a cover plate, and a housing; the upper side of the housing is detachably connected with the cover plate; the housing is communicated with the water inlet pipe; the housing is communicated with the water outlet pipe; it further comprises a fixing ring, a filter screen, a sliding ring, a blocking block, a compression assembly, and a sliding assembly; the housing is connected with the fixing ring; two first sliding grooves are opened in the upper part inside the housing; a sliding ring is slidably connected in the two first sliding grooves together; a filter screen for intercepting waste residue is fixedly connected between the fixing ring and the sliding ring, and the filter screen is an elastic net; a blocking block is slidably connected inside the sliding ring; four fourth sliding grooves are opened in the sliding ring; four sliding blocks are arranged on the outer side of the blocking block; each sliding block slides up and down in the corresponding fourth sliding groove; a compression assembly for collecting and compressing the waste residue intercepted on the filter screen is connected to the lower side of the sliding ring; a sliding assembly for driving the blocking block to slide up and down is connected to the blocking block, and two blocking pieces are arranged on the outer side of the fixing ring.

[0006] Further explanation, the compression assembly comprises a rotating ring, a connecting rod, a connecting seat, and an annular filter cotton; the sliding ring is rotatably connected with the rotating ring; a water inlet cavity is arranged inside the rotating ring; a drain port is opened in the rotating ring; a connecting rod is fixedly connected to the lower side of the blocking block; a pressing block is slidably connected inside the connecting rod; the lower side of the rotating ring is connected with the annular filter cotton on the outside, and the rotating ring is in close contact with the inner wall of the annular filter cotton; the lower side of the annular filter cotton is connected with the connecting seat; the connecting seat is connected with the sliding assembly.

[0007] Further explanation: The sliding component includes a motor, a partition board, a rotating shaft, a sliding rod, and a limiting rod; a partition board is fixedly connected to the lower side of the housing; a motor is fixedly connected to the lower side of the partition board; the output end of the motor is rotatably connected to a rotating shaft; the upper end of the rotating shaft is connected to a connecting seat; several limiting rods are fixedly connected to the connecting seat; a limiting sliding groove is opened in each limiting rod; several sliding rods are fixedly connected to the connecting rod; several symmetrically arranged fifth sliding grooves are opened on the rotating ring; each sliding rod passes through the corresponding fifth sliding groove and limiting sliding groove and slides up and down in the corresponding fifth sliding groove and limiting sliding groove; two sealing membranes are arranged between each sliding rod and the corresponding fifth sliding groove; a third sliding groove is opened in the housing, and the third sliding groove is arc-shaped; a ball is rotatably connected to one end of each sliding rod close to the inner wall of the housing, and the ball slides in the corresponding third sliding groove.

[0008] Further explanation: It also includes an activated carbon filter ball and a fan blade; the partition board divides the lower part of the housing into a purification chamber and a drainage chamber; the drainage chamber is communicated with a water outlet pipe; a fan blade is fixedly connected to the upper side of the rotating shaft; the fan blade is located above the purification chamber, and activated carbon filter balls are placed in the purification chamber.

[0009] Further explanation: It also includes a speed reducer; a speed reducer is fixedly connected in the housing; the input end of the speed reducer is fixedly connected to the rotating shaft; the output end of the speed reducer is connected to the connecting seat.

[0010] Further explanation: The filter screen is made of fiberglass.

[0011] Further explanation: Anticorrosive coatings are provided on the surfaces of the parts inside the housing.

[0012] Further explanation: It also includes fixing blocks, sliding blocks, compression springs, and limiting components; several fixing blocks are fixedly connected to the fixing ring; a sliding block for facilitating the fixing and removal of the fixing ring is slidably connected in each fixing block; several fixing grooves are opened in the housing; each sliding block passes through the fixing ring and inserts into the corresponding fixing groove in the housing; a compression spring is fixedly connected between each sliding block and the fixing block; a pressing part for facilitating the user to grasp the sliding block is arranged on the upper side of each sliding block; a second sliding groove is opened on the lower side of each first sliding groove; each second sliding groove is communicated with the third sliding groove, and the width of the second sliding groove is smaller than that of the first sliding groove; the length of each limiting sliding groove is greater than the height of the annular filter cotton; the output end of the speed reducer is detachably connected to the connecting seat; the annular filter cotton is detachably connected to the connecting seat.

[0013] Further explanation: It also includes limiting blocks; a limiting block is slidably connected to the lower side of each second sliding groove; a spring is fixedly connected between the limiting block and the housing.

[0014] Further explanation: It also includes sealing blocks; a sealing block is fixedly connected to each sliding block; the sealing block slides in the fixing block.

[0015] Compared with the prior art, the present invention has the following advantages: The motor drives the rotating shaft to rotate, which in turn drives the fan blades to rotate, thereby agitating the activated carbon filter balls in the purification chamber, improving the purification effect of the activated carbon filter balls on water, improving water quality, and ensuring that the wastewater can meet the discharge standards; and when the motor drives the rotating shaft to rotate, it also drives the connecting seat and the limiting rod to rotate; thereby driving the plugging block to move up and down, thereby opening and closing the water inlet trough; when the water inlet trough is closed, the filter screen intercepts the waste residue in the wastewater; when the water inlet trough is opened, through the guidance of the water flow, the waste residue intercepted by the filter screen is introduced into the annular filter cotton, and then the waste residue collected in the annular filter cotton is squeezed by the rotating ring and the connecting rod, and the wastewater in the waste residue flows out through the annular filter cotton into the purification chamber. After being squeezed, the waste residue will shrink and agglomerate, reducing the occupied space and increasing the interception amount of the equipment for the waste residue; then workers do not need to frequently replace and clean the filter screen and the annular filter cotton in the filter, greatly improving the filtering effect of the filter on chemical wastewater;

[0016] The fixing block, the sliding block and the compression spring facilitate the disassembly, cleaning and replacement of the filter screen and the annular filter cotton, and facilitate the cleaning of the waste residue in the annular filter cotton;

[0017] The present invention also has the following beneficial effects:

[0018] The rotating ring is in close contact with the inner wall of the annular filter cotton, improving the pressure filtration effect of the rotating ring and the extrusion block on the waste residue in the annular filter cotton;

[0019] Through the speed reducer, the motor can normally drive the fan blades to rotate rapidly through the rotating shaft, improving the contact and absorption effect between the activated carbon filter balls and water, and at the same time slowing down the rotation speed of the connecting seat, the plugging block, the rotating ring, the connecting rod and the sliding rod, reducing the frictional loss and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a small filter for easy cleaning according to the present invention;

[0021] Figure 2 It is a cross-sectional view of the outer shell of the present invention;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the combination of the plugging block, the connecting rod, the sliding rod and the limiting rod of the present invention;

[0023] Figure 4 For the present invention Figure 3 Enlarged view of area A;

[0024] Figure 5 For the present invention Figure 3 Enlarged view of area B;

[0025] Figure 6State diagram of the ball of the present invention moving to the highest point of the third chute;

[0026] Figure 7 Explosion diagram of the sliding ring, plugging block, rotating ring, connecting seat, annular filter cotton and reducer of the present invention;

[0027] Figure 8 Schematic diagram of the combined three-dimensional structure of the sliding block, compression spring and sealing block of the present invention.

[0028] Among them, the above-mentioned drawings include the following reference numerals: 1 - water inlet pipe, 2 - water outlet pipe, 3 - cover plate, 4 - outer shell, 4001 - purification chamber, 4002 - drainage chamber, 4003 - first chute, 4004 - second chute, 4005 - third chute, 5 - rotating shaft, 6 - motor, 7 - partition board, 8 - activated carbon filter ball, 9 - fan blade, 101 - fixing ring, 10101 - plugging piece, 102 - filter screen, 103 - sliding ring, 10301 - fourth chute, 10302 - water inlet groove, 104 - plugging block, 10401 - sliding block, 105 - rotating ring, 10501 - water inlet chamber, 10502 - fifth chute, 10503 - drainage port, 106 - connecting rod, 10601 - extrusion block, 107 - sliding rod, 10701 - sealing film, 10702 - ball, 108 - limiting rod, 10801 - limiting chute, 109 - connecting seat, 201 - annular filter cotton, 202 - reducer, 203 - fixing block, 204 - sliding block, 20401 - pressing part, 205 - compression spring, 206 - sealing block, 207 - limiting block. Detailed implementation mode

[0029] It should be noted first that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the whole specification can be transferred meaningfully to the same components with the same reference numerals or the same component names. The position descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are transferred meaningfully to the new positions when the positions change.

[0030] Embodiment 1

[0031] A small filter that is convenient to clean, as Figures 1 - 8 shown, includes a water inlet pipe 1, a water outlet pipe 2, a cover plate 3 and an outer shell 4; the cover plate 3 is threadedly connected to the upper side of the outer shell 4; the water inlet pipe 1 is communicated with the right side of the outer shell 4; the water outlet pipe 2 is communicated with the lower side of the outer shell 4; water pumps are arranged in both the water inlet pipe 1 and the water outlet pipe 2;

[0032] It further includes a fixed ring 101, a filter screen 102, a sliding ring 103, a plugging block 104, a compression assembly and a sliding assembly; the upper side of the housing 4 is connected with the fixed ring 101; two first sliding grooves 4003 are opened in the upper part of the inner side of the housing 4; the two first sliding grooves 4003 are jointly and slidably connected with a sliding ring 103, and the contact surface of each sliding ring 103 and the corresponding first sliding groove 4003 is set as a rough surface; a filter screen 102 is fixedly connected between the fixed ring 101 and the sliding ring 103, the filter screen 102 is in a funnel shape, and the filter screen 102 is an elastic net; the inner side of the sliding ring 103 is slidably connected with a plugging block 104; four fourth sliding grooves 10301 are opened in the sliding ring 103; four sliding blocks 10401 are arranged on the outer side of the plugging block 104; each sliding block 10401 slides up and down in the corresponding fourth sliding groove 10301; the lower side of the sliding ring 103 is connected with a compression assembly; the plugging block 104 is connected with a sliding assembly, and two plugging pieces 10101 are arranged on the outer side of the fixed ring 101, and the first sliding grooves 4003 are plugged by the plugging pieces 10101 to prevent waste water from leaking downward from the first sliding grooves 4003.

[0033] The compression assembly includes a rotating ring 105, a connecting rod 106, a connecting seat 109 and an annular filter cotton 201; the lower side of the sliding ring 103 is rotatably connected with a rotating ring 105; a water inlet cavity 10501 is arranged in the rotating ring 105; a drain port 10503 is opened on the lower side of the rotating ring 105; the lower side of the plugging block 104 is fixedly connected with a connecting rod 106; a pressing block 10601 is slidably connected in the connecting rod 106, and in the initial state, the pressing block 10601 is located at the drain port 10503, so as to plug the drain port 10503; the lower side of the outer side of the rotating ring 105 is connected with an annular filter cotton 201, and the rotating ring 105 is in close contact with the inner wall of the annular filter cotton 201; the lower side of the annular filter cotton 201 is connected with a connecting seat 109; the connecting seat 109 is connected with the sliding assembly.

[0034] The sliding component includes a motor 6, a partition plate 7, a rotating shaft 5, a sliding rod 107 and a limiting rod 108; a partition plate 7 is fixedly connected to the lower side of the outer shell 4; a motor 6 is fixedly connected to the lower side of the partition plate 7; the output end of the motor 6 is rotatably connected to a rotating shaft 5; the upper end of the rotating shaft 5 is connected to a connecting seat 109; two limiting rods 108 are fixedly connected to the connecting seat 109; a limiting chute 10801 is provided in each limiting rod 108; two sliding rods 107 are fixedly connected to the connecting rod 106, and the sliding rod 107 is in a Z shape; two symmetrically arranged fifth chutes 10502 are provided on the rotating ring 105; each sliding rod 107 passes through the corresponding fifth chute 10502 and limiting chute 10801 and slides up and down in the corresponding fifth chute 10502 and limiting chute 10801; two sealing membranes 10701 are provided between each sliding rod 107 and the corresponding fifth chute 10502; a third chute 4005 is provided in the outer shell 4, and the third chute 4005 is in an arc shape; a ball 10702 is rotatably connected to one end of each sliding rod 107 close to the inner wall of the outer shell 4, and the ball 10702 slides in the corresponding third chute 4005.

[0035] It further includes an activated carbon filter ball 8 and a fan blade 9; the partition plate 7 divides the lower part of the outer shell 4 into a purification chamber 4001 and a drainage chamber 4002; the drainage chamber 4002 is communicated with the water outlet pipe 2; a fan blade 9 is fixedly connected to the upper side of the rotating shaft 5; the fan blade 9 is located above the purification chamber 4001, and activated carbon filter balls 8 are placed in the purification chamber 4001.

[0036] It further includes a speed reducer 202; the speed reducer 202 is fixedly connected inside the outer shell 4; the input end of the speed reducer 202 is fixedly connected to the rotating shaft 5; the output end of the speed reducer 202 is connected to the connecting seat 109.

[0037] The filter screen 102 is made of fiberglass and has good corrosion resistance.

[0038] An anti-corrosion coating is provided on the surfaces of the parts inside the outer shell 4.

[0039] The working principle of the above embodiment is as follows:

[0040] First, the worker connects the filter's water inlet pipe 1 to the flotation or flocculation treatment equipment for wastewater; then connects the water outlet pipe 2 to the wastewater collection equipment; then starts the filter; first, the wastewater that has been treated with flotation or flocculation will enter the upper side of the shell 4 from the water inlet pipe 1, and then flow downward into the purification chamber 4001. During this process, the water waste residue is filtered and intercepted by the filter screen 102; and when the filter is started, the motor 6 will also start, and at this time the motor 6 will drive the rotating shaft 5 to rotate, and then drive the fan blades 9 to rotate, thereby stirring the activated carbon filter ball 8 in the purification chamber 4001, so that the activated carbon The filter ball 8 is in full contact with the filtered wastewater, improving the purification effect of the activated carbon filter ball 8 on the wastewater, ensuring that the wastewater can meet the discharge standard, and then the water in the purification chamber 4001 will flow into the drainage chamber 4002 and be discharged through the outlet pipe 2; however, after the wastewater is treated with flotation and flocculation, a large amount of foamy waste residue will be produced. When the waste residue is intercepted by the filter screen 102, the foamy waste residue will absorb water and expand, so the volume is large, which is very easy to block the filter screen 102 in the filter, affecting the filtering effect of the filter; causing workers to frequently clean and replace the filter screen 102, which is troublesome;

[0041] Therefore, Figure 3 As shown: in the initial state; the blocking block 104 is located at the water inlet trough 10302, thereby blocking the water inlet trough 10302. At this time, the waste residue intercepted by the filter screen 102 cannot enter the water inlet chamber 10501 through the water inlet trough 10302, but because the filter screen 102 is funnel-shaped, the waste residue intercepted on the filter screen 102 will be impacted by the water flow and converge to the water inlet trough 10302; when the filter is started, the motor 6 drives the rotating shaft 5 to rotate, and at the same time, it also drives the connecting seat 109 and the limiting rod 108 to rotate, and the sliding rod 107 is limited by the limiting rod 108, so when the limiting rod 108 rotates, it also drives the sliding rod 107 to rotate, but Because the ball 10702 can only slide in the third slide groove 4005 set in the curved arc, when the sliding rod 107 rotates, it is limited by the third slide groove 4005, and the sliding rod 107 will slide upward in the limiting slide groove 10801, thereby driving the rotating ring 105, the connecting rod 106, the blocking block 104 and the sliding ring 103 to move upward; it should be noted that the rotating ring 105 is rotatably connected with the sliding ring 103, and the sliding rod on the sliding ring 103 is limited by the first slide groove 4003 and cannot rotate, so the rotating ring 105 will not drive the sliding ring 103 to rotate, and the sliding ring 103 can only slide up and down in the first slide groove 4003; then Figure 4 As shown, first the sliding rod 107 and the connecting rod 106 will move upwards, at which time the sliding rod 107 slides upwards in the fifth sliding groove 10502, and the slider 10401 slides upwards in the fourth sliding groove 10301, thereby pushing the blocking block 104 upwards, thereby releasing the blocking of the water inlet trough 10302 by the blocking block 104. Figure 6As shown in the figure, the waste residue converging at the water inlet tank 10302 will enter the water inlet cavity 10501. At this time, the extrusion block 10601 will automatically fall downward under the influence of gravity, the drain port 10503 will open, and the waste residue in the water inlet cavity 10501 will flow into the annular filter cotton 201; and as the sliding rod 107 continues to rotate and move upward, when the slider 10401 moves to the uppermost side of the fourth chute 10301, the plugging block 104 will drive the sliding ring 103 to slide upward, thereby driving the filter screen 102 to move upward. At this time, the upper side of the filter screen 102 is fixed and the lower side moves upward, causing the filter screen 102 to contract. At this time, the gap between the filter screens 102 is reduced, and it is difficult for water to flow downward through the filter screen 102. Instead, it will flow into the water inlet cavity 10501 through the water inlet tank 10302, flushing the waste residue on the surface of the filter screen 102 and washing the waste residue adhering to the surface of the filter screen 102 into the annular filter cotton 201; when the ball 10702 rotates to the highest point of the third chute 4005, the sliding rod 107 begins to move downward, thereby driving the rotating ring 105, the connecting rod 106, the plugging block 104 and the sliding ring 103 to move downward and reset. At this time, since the contact surface between the sliding ring 103 and the first chute 4003 is a rough surface and the sliding resistance is large, when the rotating ring 105, the connecting rod 106 and the plugging block 104 move downward, the slider 10401 and the sliding rod 107 will first slide downward in the fourth chute 10301 and the fifth chute 10502, thereby first driving the connecting rod 106 and the plugging block 104 to move downward, and then first plugging the water inlet tank 10302 to prevent too much waste water from entering the annular filter cotton 201; then the rotating ring 105, the connecting rod 106 and the plugging block 104 continue to move downward. When the extrusion block 10601 contacts the waste residue in the annular filter cotton 201, the extrusion block 10601 will be compressed and first contract and reset into the connecting rod 106. When the extrusion block 10601 is reset, the drain port 10503 is in a sealed state. Then, as the rotating ring 105 and the connecting rod 106 continue to move downward, the lower bottom surface of the rotating ring 105 and the extrusion block 10601 will squeeze the waste residue in the annular filter cotton 201, squeezing out the water in the waste residue. Then the squeezed water will flow out through the annular filter cotton 201 and enter the purification cavity 4001, and the waste residue will be squeezed and contracted, reducing the occupied space and improving the collection effect of the filter screen 102 and the annular filter cotton 201. Thus, the waste residue intercepted on the filter screen 102 is collected and pressure-filtered by this method; the interception amount of the waste residue by the equipment is increased; then the worker does not need to frequently replace and clean the filter screen 102 and the annular filter cotton 201 in the filter, greatly improving the filtering effect of the filter on chemical wastewater.

[0042] On the basis of the above technical effects, the present invention also has the following advantages:

[0043] The first chute 4003 is blocked by the blocking piece 10101 to prevent wastewater from leaking downward inside the first chute 4003; the rotating ring 105 is in close contact with the inner wall of the annular filter cotton 201, improving the pressure filtration effect of the rotating ring 105 and the extrusion block 10601 on the waste residue inside the annular filter cotton 201;

[0044] Through the speed reducer 202, the motor 6 can drive the fan blade 9 to rotate rapidly through the rotating shaft 5 normally. While improving the contact and absorption effect between the activated carbon filter balls 8 and water, the rotation speeds of the connecting seat 109, the blocking block 104, the rotating ring 105, the connecting rod 106, and the sliding rod 107 are slowed down, reducing losses and increasing the service life;

[0045] The filter screen 102 is made of fiberglass and has good corrosion resistance. Anti-corrosion coatings are provided on the surfaces of the parts inside the housing 4; reducing the corrosion damage of the filter screen 102 and the internal parts of the housing 4 by chemical wastewater and increasing the service life of the equipment.

[0046] Embodiment 2

[0047] Based on Embodiment 1, as Figures 3 - 8 shown, it further includes fixing blocks 203, sliding blocks 204, compression springs 205, and limiting components; two fixing blocks 203 are fixedly connected to the fixing ring 101; a sliding block 204 is slidably connected inside each fixing block 203; two fixing grooves are formed inside the housing 4; each sliding block 204 passes through the fixing ring 101 and is inserted into the corresponding fixing groove inside the housing 4; a compression spring 205 is fixedly connected between each sliding block 204 and the fixing block 203; a pressing part 20401 is provided on the upper side of each sliding block 204, and the pressing part 20401 protrudes above the fixing block 203; a second chute 4004 is formed on the lower side of each first chute 4003; each second chute 4004 communicates with the third chute 4005, and the width of the second chute 4004 is smaller than the width of the first chute 4003; the length of each limiting chute 10801 is greater than the height of the annular filter cotton 201; the output end of the speed reducer 202 is detachably connected to the connecting seat 109; the annular filter cotton 201 is threadedly connected to the connecting seat 109.

[0048] It further includes a limiting block 207; a limiting block 207 is slidably connected to the lower side of each second chute 4004; a spring is fixedly connected between the limiting block 207 and the housing 4. In the initial state, the limiting block 207 is pushed into the second chute 4004 under the stretching pressure of the spring to block the second chute 4004. When the limiting block 207 is pressed, the spring is compressed and contracted, and the limiting block 207 enters the housing 4.

[0049] It further includes a sealing block 206; a sealing block 206 is fixedly connected to each sliding block 204; the sealing block 206 slides within the fixed block 203, and the fixed block 203 is sealed by the sealing block 206.

[0050] The working principle of the above embodiment is as follows:

[0051] After intercepting the waste residue in water through the filter screen 102 described in Embodiment 1 and pressing the intercepted waste residue into the annular filter cotton 201 through the rotating ring 105 and the extrusion block 10601: As Figures 3 - 8 shown: When the test wastewater filtration is completed, the worker only needs to open the cover plate 3, then grab the pressing part 20401 by hand and press the sliding block 204 towards the middle of the fixed ring 101. At this time, the compression spring 205 is compressed and contracted, and the sliding block 204 exits the fixed groove in the outer shell 4. Then the worker pulls up the fixed ring 101. It should be noted here that as Figure 3 shown, when the ball 10702 slides in the third chute 4005, when the ball 10702 slides to directly below the second chute 4004, it is limited and guided by the limit block 207 so that the ball 10702 will not roll into the second chute 4004, and each time the motor 6 stops rotating, it will drive the limit rod 108 and the connecting seat 109 to move to the state as Figure 3 shown. At this time, the ball 10702 is exactly directly below the corresponding second chute 4004. Therefore, when the fixed ring 101 is pulled up, the sliding ring 103 slides upward in the first chute 4003, and the ball 10702 slides upward in the second chute 4004 and squeezes the limit block 207, squeezing the limit block 207 into the outer shell 4; then the ball 10702 can smoothly slide upward out of the second chute 4004; then the sliding rod 107 moves upward in the limit chute 10801. When the sliding rod 107 moves to the uppermost side of the limit chute 10801, as the worker continues to pull upward, the sliding rod 107 will pull up the limit rod 108 and the connecting seat 109, thereby pulling out the filter screen 102 and the annular filter cotton 201 from the outer shell 4. At this time, as Figure 6As shown, since the length of the limit chute 10801 is greater than the height of the annular filter cotton 201, when the sliding rod 107 moves to the uppermost side of the limit chute 10801, the rotating ring 105 is also taken out of the annular filter cotton 201. Then, the worker can twist out the annular filter cotton 201, clean the waste residue inside the annular filter cotton 201, and at the same time clean the filter screen 102, which is convenient to use. And when the worker reinstalls the removed parts back into the housing 4, the worker only needs to twist the annular filter cotton 201 back into the connecting seat 109, then pinch the pressing part 20401, and insert the sliding rod and the ball 10702 on the sliding ring 103 into the first chute 4003. Then, the fixing ring 101 is squeezed into the housing 4. When the ball 10702 enters the third chute 4005, the sliding block 204 is also aligned with the corresponding fixing groove on the housing 4. Then, the worker only needs to release the pressing part 20401. At this time, the compression spring 205 extends and resets to squeeze the sliding block 204 into the corresponding fixing groove on the housing 4, thereby fixing the fixing ring 101. It should be noted that the width of the second chute 4004 is smaller than that of the first chute 4003. When the ball 10702 reaches the third chute 4005, the sliding rod on the sliding ring 103 also reaches the bottom of the first chute 4003. At this time, the fixing ring 101 cannot move down, and the sliding rod on the sliding ring 103 is limited by the first chute 4003 and cannot rotate. Therefore, the fixing ring 101 cannot rotate either, so the position of the fixing ring 101 will not shift, which is convenient for the worker to install.

[0052] On the basis of the above technical effects, the present invention also has the following advantages:

[0053] When the sliding block 204 moves, the sealing block 206 seals the fixing block 203 to prevent water from entering the fixing block 203.

[0054] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present invention. Those skilled in the art will understand that the variant forms of the present invention will be included within the scope of the claims herein.

Claims

1. A small filter that is easy to clean, comprising a water inlet pipe (1), a water outlet pipe (2), a cover plate (3) and a shell (4); the cover plate (3) is detachably connected to the upper side of the shell (4); the shell (4) is connected to the water inlet pipe (1); the shell (4) is connected to the water outlet pipe (2); the characteristics are: The invention also comprises a fixed ring (101), a filter screen (102), a sliding ring (103), a blocking block (104), a compression assembly and a sliding assembly; the outer shell (4) is connected to the fixed ring (101); two first sliding grooves (4003) are provided at the inner upper part of the outer shell (4); the sliding ring (103) is slidably connected in the two first sliding grooves (4003); a filter screen (102) for intercepting waste residue is fixedly connected between the fixed ring (101) and the sliding ring (103), and the filter screen (102) is an elastic net; the inner side of the sliding ring (103) is slidably connected to the blocking block ( 104); four fourth slide grooves (10301) are provided in the sliding ring (103); four sliders (10401) are provided on the outside of the blocking block (104); each slider (10401) slides up and down in the corresponding fourth slide groove (10301); a compression component for collecting and compressing the waste residue intercepted on the filter screen (102) is connected to the lower side of the sliding ring (103); a sliding component for driving the blocking block (104) to slide up and down is connected to the blocking block (104); two blocking sheets (10101) are provided on the outside of the fixed ring (101); The compression assembly comprises a rotating ring (105), a connecting rod (106), a connecting seat (109) and an annular filter cotton (201); the sliding ring (103) is rotatably connected to the rotating ring (105); a water inlet chamber (10501) is arranged in the rotating ring (105); a water outlet (10503) is opened in the rotating ring (105); a connecting rod (106) is fixedly connected to the lower side of the blocking block (104); an extrusion block (10601) is slidably connected in the connecting rod (106); an annular filter cotton (201) is connected to the outer side of the lower side of the rotating ring (105), and the rotating ring (105) is in close contact with the inner wall of the annular filter cotton (201); a connecting seat (109) is connected to the lower side of the annular filter cotton (201); and the connecting seat (109) is connected to the sliding assembly; The sliding assembly comprises a motor (6), a partition (7), a rotating shaft (5), a sliding rod (107) and a limiting rod (108); the partition (7) is fixedly connected to the lower side of the housing (4); the motor (6) is fixedly connected to the lower side of the partition (7); the output end of the motor (6) is rotatably connected to the rotating shaft (5); the upper end of the rotating shaft (5) is connected to a connecting seat (109); a plurality of limiting rods (108) are fixedly connected to the connecting seat (109); each limiting rod (108) is provided with a limiting sliding groove (10801); a plurality of sliding rods (107) are fixedly connected to the connecting rod (106); a plurality of symmetrically arranged fifth sliding grooves (10501) are provided on the rotating ring (105); 02); each sliding rod (107) passes through the corresponding fifth sliding groove (10502) and the limiting sliding groove (10801), and slides up and down in the corresponding fifth sliding groove (10502) and the limiting sliding groove (10801); two sealing films (10701) are arranged between each sliding rod (107) and the corresponding fifth sliding groove (10502); a third sliding groove (4005) is opened in the shell (4), and the third sliding groove (4005) is in an arc shape; each sliding rod (107) is rotatably connected to one end of the inner wall of the shell (4), and the ball (10702) slides in the corresponding third sliding groove (4005).

2. A small filter that is easy to clean according to claim 1, characterized in that: It also includes an activated carbon filter ball (8) and a fan blade (9); the partition plate (7) divides the lower part of the housing (4) into a purification chamber (4001) and a drainage chamber (4002); the drainage chamber (4002) is connected to the water outlet pipe (2); the fan blade (9) is fixedly connected to the upper side of the rotating shaft (5); the fan blade (9) is located on the upper side of the purification chamber (4001), and the activated carbon filter ball (8) is placed in the purification chamber (4001).

3. A small filter that is easy to clean according to claim 2, characterized in that: It also includes a reducer (202); the reducer (202) is fixedly connected inside the housing (4); the input end of the reducer (202) is fixedly connected to the rotating shaft (5); and the output end of the reducer (202) is connected to the connecting seat (109).

4. A small filter that is easy to clean according to claim 1, characterized in that: The filter screen (102) is made of glass fiber.

5. A small filter that is easy to clean according to claim 3, characterized in that: The surfaces of the parts in the housing (4) are all provided with an anti-corrosion coating.

6. A small filter that is easy to clean according to claim 1, characterized in that: The invention also comprises a fixed block (203), a sliding block (204), a compression spring (205) and a limit assembly; a plurality of fixed blocks (203) are fixedly connected to the fixed ring (101); a sliding block (204) is slidably connected in each fixed block (203) for facilitating the fixing and removal of the fixed ring (101); a plurality of fixing grooves are provided in the housing (4); each sliding block (204) passes through the fixed ring (101) and is inserted into a corresponding fixing groove in the housing (4); a compression spring (205) is fixedly connected between each sliding block (204) and the fixed block (203); each sliding block (204) A pressing portion (20401) is provided on the upper side for facilitating the user to grasp the sliding block (204); a second sliding groove (4004) is provided on the lower side of each first sliding groove (4003); each second sliding groove (4004) is connected to the third sliding groove (4005), and the width of the second sliding groove (4004) is smaller than the width of the first sliding groove (4003); the length of each limiting sliding groove (10801) is greater than the height of the annular filter cotton (201); the output end of the reducer (202) is detachably connected to the connecting seat (109); and the annular filter cotton (201) is detachably connected to the connecting seat (109).

7. A small filter that is easy to clean according to claim 6, characterized in that: It also includes a limit block (207); the lower side of each second sliding groove (4004) is slidably connected to the limit block (207); and a spring is fixedly connected between the limit block (207) and the housing (4).

8. A small filter that is easy to clean according to claim 6, characterized in that: It also includes a sealing block (206); each sliding block (204) is fixedly connected to a sealing block (206); and the sealing block (206) slides inside the fixed block (203).

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