Small filter convenient to clean

Abstract

The invention relates to the field of filters, in particular to a convenient-to-clean small filter which comprises a water inlet pipe, a water outlet pipe, a cover plate, a shell and the like, the upper side of the shell is detachably connected with a cover plate; the shell communicates with a water inlet pipe; the shell communicates with a water outlet pipe. The motor drives the connecting base and the limiting rod to rotate; the blocking block is driven to move up and down, so that the water inlet groove is opened and closed; when the water inlet tank is closed, waste residues in the wastewater are intercepted through the filter screen; when a water inlet groove is opened, waste residues intercepted by a filter screen are guided into annular filter cotton by guiding water flow, then the waste residues collected in the annular filter cotton are extruded through a rotating ring and a connecting rod, waste water in the waste residues is extruded into a purification cavity again, the waste residues shrink and agglomerate after being extruded, and the occupied space is reduced; and then, workers do not need to frequently replace and clean the filter screen and the annular filter cotton in the filter, so that the filtering effect of the filter on the chemical wastewater is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of filters, in particular to a small filter which is easy to clean. Background Art

[0002] Chemical wastewater treatment is a complex process involving a variety of technologies and methods, the purpose of which is to remove harmful substances from wastewater so that it meets discharge standards or reuse requirements;

[0003] In the prior art, when filtering chemical wastewater through a filter, the existing chemical wastewater is usually treated by flotation and flocculation equipment; after flotation and flocculation treatment, a large amount of foamy waste residue will be produced in the wastewater. When filtering through the filter, the foamy waste residue will absorb water and expand, so its volume is large, which is very easy to clog 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 more troublesome. Summary of the invention

[0004] In order to overcome the disadvantages that chemical wastewater will produce a lot of foamy waste residues after flotation or flocculation treatment, these foamy waste residues will absorb water and expand, and their volume will be large, which will easily clog the filter screen and filter cotton in the filter, affecting the filtering effect of the filter; resulting in workers having to frequently clean and replace the filter screen and filter cotton, which is rather troublesome, the present invention provides a small filter that is easy to clean.

[0005] Technical solution: A small filter that is easy to clean, comprising an inlet pipe, an outlet pipe, a cover plate and an outer shell; the cover plate is detachably connected to the upper side of the outer shell; the outer shell is connected to the inlet pipe; the outer shell is connected to the outlet pipe; it also includes a fixing ring, a filter screen, a sliding ring, a blocking block, a compression assembly and a sliding assembly; the outer shell is connected to the fixing ring; two first slide grooves are provided on the upper inner side of the outer shell; the sliding ring is slidably connected in the two first slide grooves; 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 to the inner side of the sliding ring; four fourth slide grooves are provided in the sliding ring; four sliders are arranged on the outer side of the blocking block; each slider slides up and down in the corresponding fourth slide groove; a compression assembly for collecting and compressing 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 sheets are arranged on the outer side of the fixing ring.

[0006] To further explain, the compression assembly includes a rotating ring, a connecting rod, a connecting seat and annular filter cotton; the sliding ring is rotatably connected to the rotating ring; a water inlet chamber is provided in the rotating ring; a drainage outlet is opened in the rotating ring; a connecting rod is fixedly connected to the lower side of the blocking block; an extrusion block is slidably connected in the connecting rod; an annular filter cotton is connected to the outer side of the lower side of the rotating ring, 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 to the connecting seat; the connecting seat is connected to the sliding assembly.

[0007] Further explanation: the sliding assembly includes a motor, a partition, a rotating shaft, a sliding rod and a limit rod; a partition is fixedly connected to the lower side of the shell; a motor is fixedly connected to the lower side of the partition; the output end of the motor is rotatably connected to the rotating shaft; the upper end of the rotating shaft is connected to the connecting seat; a number of limit rods are fixedly connected to the connecting seat; each limit rod has a limited slot; a number of sliding rods are fixedly connected to the connecting rod; a number of symmetrically arranged fifth slots are provided on the rotating ring; each sliding rod passes through the corresponding fifth slot and limit slot, and slides up and down in the corresponding fifth slot and limit slot; two sealing membranes are provided between each sliding rod and the corresponding fifth slot; a third slot is provided in the shell, and the third slot is curved; each sliding rod is rotatably connected to one end of the inner wall of the shell, and the ball slides in the corresponding third slot.

[0008] Further description, it also includes activated carbon filter balls and fan blades; the partition divides the lower part of the shell into a purification chamber and a drainage chamber; the drainage chamber is connected to the water outlet pipe; the fan blades are fixedly connected to the upper side of the rotating shaft; the fan blades are located on the upper side of the purification chamber, and the activated carbon filter ball is placed in the purification chamber.

[0009] Further description, it also includes a reducer; the reducer is fixedly connected in the shell; the input end of the reducer is fixedly connected to the rotating shaft; and the output end of the reducer is connected to the connecting seat.

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

[0011] It is further explained that the surfaces of the parts in the housing are all provided with an anti-corrosion coating.

[0012] Further description, it also includes a fixed block, a sliding block, a compression spring and a limit assembly; a plurality of fixed blocks are fixedly connected to the fixed ring; each fixed block is slidably connected to a sliding block for easy fixing and removal of the fixed ring; a plurality of fixing grooves are opened in the outer shell; each sliding block passes through the fixing ring and is inserted into the corresponding fixing groove in the outer shell; a compression spring is fixedly connected between each sliding block and the fixed block; a pressing part is provided on the upper side of each sliding block for easy user to grab the sliding block; a second sliding groove is opened on the lower side of each first sliding groove; each second sliding groove is connected to the third sliding groove, and the width of the second sliding groove is smaller than the width 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 reducer is detachably connected to the connecting seat; the annular filter cotton is detachably connected to the connecting seat.

[0013] Further description, it also includes a limit block; the lower side of each second slide groove is slidably connected to the limit block; and a spring is fixedly connected between the limit block and the shell.

[0014] Further description, it also includes a sealing block; each sliding block is fixedly connected to a sealing block; the sealing block slides in the fixed block.

[0015] Compared with the prior art, the present invention has the following advantages: the motor drives the rotating shaft to rotate, and then drives the fan blades to rotate, and then stirs the activated carbon filter ball in the purification chamber, thereby improving the purification effect of the activated carbon filter ball on water, improving the water quality, and ensuring that the wastewater can meet the discharge standard; and the motor drives the rotating shaft to rotate while also driving the connecting seat and the limit rod to rotate; and then drives the blocking block to move up and down, and then opens and closes the water inlet trough; when the water inlet trough is closed, the waste residue in the wastewater is intercepted by the filter screen; when the water inlet trough is opened, the waste residue intercepted by the filter screen is introduced into the annular filter cotton by guiding the water flow, 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, and the waste residue is squeezed and agglomerated, which reduces the occupied space and increases the interception amount of the waste residue by the equipment; then the workers do not need to frequently replace and clean the filter screen and the annular filter cotton in the filter, which greatly improves the filtering effect of the filter on chemical wastewater;

[0016] The fixed block, sliding block and compression spring are used to facilitate the disassembly, cleaning and replacement of the filter screen and the annular filter cotton, and to 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, which improves the filtering effect of the rotating ring and the extrusion block on the waste residue in the annular filter cotton;

[0019] Through the reducer, the motor can drive the fan blades to rotate rapidly through the rotating shaft, thereby improving the contact and absorption effect between the activated carbon filter ball and water, while slowing down the rotation speed of the connecting seat, sealing block, rotating ring, connecting rod and sliding rod, reducing friction loss and increasing service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the small filter that is easy to clean according to the present invention;

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

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

[0023] Figure 4 For the present invention Figure 3 A magnified image of the area in the middle;

[0024] Figure 5 For the present invention Figure 3 A magnified image of the area at B in the middle;

[0025] Figure 6This is a state diagram of the ball of the present invention moving to the highest point of the third chute;

[0026] Figure 7 It is an exploded view of the sliding ring, the blocking block, the rotating ring, the connecting seat, the annular filter cotton and the reducer of the present invention;

[0027] Figure 8 It is a 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 drawings include the following figure marks: 1-water inlet pipe, 2-water outlet pipe, 3-cover plate, 4-housing, 4001-purification chamber, 4002-drainage chamber, 4003-first chute, 4004-second chute, 4005-third chute, 5-rotating shaft, 6-motor, 7-partition, 8-activated carbon filter ball, 9-fan blade, 101-fixing ring, 10101-blocking piece, 102-filter screen, 103-sliding ring, 10301-fourth chute, 10302-water inlet trough, 104-blocking block, 10401 -slider, 105-rotating ring, 10501-water inlet chamber, 10502-fifth slide groove, 10503-drainage outlet, 106-connecting rod, 10601-extrusion block, 107-sliding rod, 10701-sealing membrane, 10702-ball, 108-limiting rod, 10801-limiting slide groove, 109-connecting seat, 201-annular filter cotton, 202-reducer, 203-fixed block, 204-sliding block, 20401-pressing part, 205-compression spring, 206-sealing block, 207-limiting block. DETAILED DESCRIPTION

[0029] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0030] Example 1

[0031] A small filter that is easy to clean, such as Figure 1-Figure 8 As shown, it includes a water inlet pipe 1, a water outlet pipe 2, a cover plate 3 and a shell 4; the cover plate 3 is threadedly connected to the upper side of the shell 4; the right side of the shell 4 is connected to the water inlet pipe 1; the lower side of the shell 4 is connected to the water outlet pipe 2; water pumps are provided in the water inlet pipe 1 and the water outlet pipe 2;

[0032] It also includes a fixed ring 101, a filter screen 102, a sliding ring 103, a blocking block 104, a compression assembly and a sliding assembly; the upper side of the housing 4 is connected to the fixed ring 101; the upper inner side of the housing 4 is provided with two first slide grooves 4003; the two first slide grooves 4003 are slidably connected with the sliding ring 103, and the contact surface between each sliding ring 103 and the corresponding first slide groove 4003 is set as a rough surface; the fixed ring 101 and the sliding ring 103 are fixedly connected with the filter screen 102, the filter screen 102 is funnel-shaped, and the filter screen 102 is an elastic net; the sliding ring 101 03 is slidably connected with a blocking block 104 on the inner side; four fourth slide grooves 10301 are opened in the sliding ring 103; four sliders 10401 are arranged on the outer side of the blocking block 104; each slider 10401 slides up and down in the corresponding fourth slide groove 10301; a compression assembly is connected to the lower side of the sliding ring 103; a sliding assembly is connected to the blocking block 104, and two blocking pieces 10101 are arranged on the outer side of the fixed ring 101, and the first slide groove 4003 is blocked by the blocking piece 10101 to prevent waste water from leaking downward from the first slide groove 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 rotating ring 105 is rotatably connected to the lower side of the sliding ring 103; a water inlet chamber 10501 is arranged in the rotating ring 105; a drain port 10503 is opened at the lower side of the rotating ring 105; a connecting rod 106 is fixed to the lower side of the blocking block 104; an extrusion block 10601 is slidably connected in the connecting rod 106, and in the initial state, the extrusion block 10601 is located at the drain port 10503, thereby blocking the drain port 10503; the 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; the connecting seat 109 is connected to the lower side of the annular filter cotton 201; the connecting seat 109 is connected to the sliding assembly.

[0034] The sliding assembly includes 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 the connecting seat 109; two limiting rods 108 are fixedly connected to the connecting seat 109; each limiting rod 108 has a limiting slide groove 10801; two sliding rods 107 are fixedly connected to the connecting rod 106, and the sliding rods 107 are Z-shaped; the rotating ring 105 has two symmetrically arranged fifth slide grooves 1050 2; 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.

[0035] It also includes an activated carbon filter ball 8 and a fan blade 9; the partition 7 divides the lower part of the shell 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.

[0036] The reducer 202 is also included; the reducer 202 is fixedly connected in 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.

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

[0038] The surfaces of the parts in the housing 4 are all provided with an anti-corrosion coating.

[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: the waste residue gathered at the water inlet groove 10302 will enter the water inlet chamber 10501, and at this time the extrusion block 10601 will automatically fall downward due to the influence of gravity, the drain port 10503 will open, and the waste residue in the water inlet chamber 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 slide groove 10301, the blocking block 104 will drive the sliding ring 103 to slide upward, and then drive 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 shrink. At this time, the gap between the filter screens 102 is reduced, and it is difficult for water to pass through the filter screen. 102 flows downward, and then flows into the water inlet chamber 10501 through the water inlet groove 10302, flushing the waste residue on the surface of the filter screen 102, and flushing 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 slide groove 4005, the sliding rod 107 starts to move downward, thereby driving the rotating ring 105, the connecting rod 106, the blocking block 104 and the sliding ring 103 to move downward and reset. At this time, because the contact surface between the sliding ring 103 and the first slide groove 4003 is a rough surface, the sliding resistance is large. Therefore, when the rotating ring 105, the connecting rod 106 and the blocking block 104 move downward, the sliding block 104 moves downward. 0401 and the sliding rod 107 will first slide downward in the fourth slide groove 10301 and the fifth slide groove 10502, and then drive the connecting rod 106 and the blocking block 104 to move downward, and then first block the water inlet groove 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 blocking block 104 continue to move downward, and when the extrusion block 10601 contacts the waste residue in the annular filter cotton 201, the extrusion block 10601 will be compressed and will first shrink and reset into the connecting rod 106. After the extrusion block 10601 is reset, the drain port 10503 is in a sealed state, and then as the rotating ring 105 and The connecting rod 106 continues to move downward, and the bottom surface of the rotating ring 105 and the extrusion block 10601 will squeeze the waste residue in the annular filter cotton 201, squeeze out the water in the waste residue, and then the squeezed water will flow out through the annular filter cotton 201 into the purification chamber 4001, and the waste residue will be squeezed and shrunk, reducing the occupied space, improving the collection effect of the filter screen 102 and the annular filter cotton 201, and then through this method, the waste residue intercepted on the filter screen 102 can be collected and filtered; the interception capacity of the equipment for waste residue is increased; and then the workers do not need to frequently replace and clean the filter screen 102 and the annular filter cotton 201 in the filter, which greatly improves 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 from the first chute 4003; the rotating ring 105 is in close contact with the inner wall of the annular filter cotton 201, thereby improving the filtering effect of the rotating ring 105 and the squeezing block 10601 on the waste residue in the annular filter cotton 201;

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

[0045] The filter screen 102 is made of glass fiber and has good corrosion resistance. The surfaces of the parts in the housing 4 are all provided with an anti-corrosion coating, which reduces the corrosion damage of the filter screen 102 and the internal parts of the housing 4 caused by chemical wastewater and improves the service life of the equipment.

[0046] Example 2

[0047] On the basis of Example 1, Figure 3-Figure 8 As shown, it also includes a fixed block 203, a sliding block 204, a compression spring 205 and a limit assembly; two fixed blocks 203 are fixedly connected to the fixed ring 101; each fixed block 203 is slidably connected to a sliding block 204; two fixed grooves are provided in the housing 4; each sliding block 204 passes through the fixed ring 101 and is inserted into the corresponding fixed groove in the housing 4; a compression spring 205 is fixedly connected between each sliding block 204 and the fixed block 203; a pressing portion 205 is provided on the upper side of each sliding block 204 401, the pressing portion 20401 protrudes from the upper side of the fixed block 203; a second slide groove 4004 is provided on the lower side of each first slide groove 4003; each second slide groove 4004 is connected to the third slide groove 4005, and the width of the second slide groove 4004 is smaller than the width of the first slide groove 4003; the length of each limiting slide 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; the annular filter cotton 201 is threadedly connected to the connecting seat 109.

[0048] It also includes a limit block 207; the lower side of each second slide groove 4004 is slidably connected to the limit block 207; a spring is fixedly connected between the limit block 207 and the shell 4, and in the initial state, the limit block 207 is stretched and squeezed by the spring and pushed into the second slide groove 4004 to block the second slide groove 4004. When the limit block 207 is compressed, the spring is compressed and contracted, and the limit block 207 enters the shell 4.

[0049] It also includes a sealing block 206 ; each sliding block 204 is fixedly connected with a sealing block 206 ; the sealing block 206 slides in 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] In the embodiment 1, the waste residue in the water is intercepted by the filter screen 102, and the intercepted waste residue is filtered in the annular filter cotton 201 by the rotating ring 105 and the extrusion block 10601: Figure 3-Figure 8 As shown: when the test wastewater filtration is completed, the worker only needs to open the cover plate 3, and then grasp the pressing part 20401 with his hand, and press the sliding block 204 to the middle of the fixing ring 101. At this time, the compression spring 205 is compressed and contracted, and the sliding block 204 withdraws from the fixing groove in the shell 4. Then the worker pulls up the fixing ring 101. It should be noted here that Figure 3 As shown, when the ball 10702 slides in the third slide groove 4005, when the ball 10702 slides to the bottom of the second slide groove 4004, the limiting block 207 limits and guides the ball 10702 so that it will not roll into the second slide groove 4004, and each time the motor 6 stops rotating, it will drive the limiting rod 108 and the connecting seat 109 to move to the position as shown in FIG. Figure 3 In the state shown, the ball 10702 is just located in the corresponding second slide groove 4004 which is just being lowered. Therefore, when the fixing ring 101 is pulled up, the sliding ring 103 slides upward in the first slide groove 4003, and the ball 10702 slides upward in the second slide groove 4004, and squeezes the limit block 207, so that the limit block 207 is squeezed into the shell 4; then the ball 10702 can smoothly slide out of the second slide groove 4004 upward; then the sliding rod 107 moves upward in the limit slide groove 10801, and when the sliding rod 107 moves to the uppermost side of the limit slide groove 10801, as the worker continues to pull upward, the sliding rod 107 will pull up the limit rod 108 and the connecting seat 109, and then pull the filter screen 102 and the annular filter cotton 201 out of the shell 4. Figure 6As shown, because the length of the limiting slide groove 10801 is greater than the height of the annular filter cotton 201, when the sliding rod 107 moves to the uppermost side of the limiting slide groove 10801, the rotating ring 105 is also brought out of the annular filter cotton 201, and then the worker can twist out the annular filter cotton 201, and clean the waste residue in the annular filter cotton 201, and clean the filter screen 102 at the same time, 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 ball 10702 on the sliding ring 103 into the first slide groove 4003, and then squeeze the fixing ring 101 into the housing 4. When the ball 10702 enters the third slide groove 4005, the sliding block 204 is also facing the corresponding fixing groove on the outer shell 4, and then the worker only needs to release the pressing part 20401. At this time, the compression spring 205 stretches and resets, and then squeezes the sliding block 204 into the corresponding fixing groove on the outer shell 4, thereby fixing the fixing ring 101. It should be noted that the width of the second sliding groove 4004 is smaller than the first sliding groove 4003. When the ball 10702 reaches the third sliding groove 4005, the sliding rod on the sliding ring 103 also reaches the bottom of the first sliding groove 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 sliding groove 4003 and cannot rotate. Therefore, the fixing ring 101 cannot rotate either. Therefore, the position of the fixing ring 101 will not be offset, which is convenient for workers 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 fixed block 203 to prevent water from entering the fixed block 203 .

[0054] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations 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 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); and two blocking sheets (10101) are provided on the outside of the fixed ring (101).

2. A small filter that is easy to clean according to claim 1, characterized in that: 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); The rotating ring (105) is provided with a drainage port (10503); a connecting rod (106) is fixedly connected to the lower side of the blocking block (104); an extrusion block (10601) is slidably connected inside 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 component.

3. A small filter that is easy to clean according to claim 1, characterized in that: 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).

4. A small filter that is easy to clean according to claim 3, characterized in that: The invention also comprises 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 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).

5. A small filter that is easy to clean according to claim 4, 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).

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

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

8. 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 inside each fixed block (203) for facilitating fixing and removing the fixed ring (101); a plurality of fixing grooves are provided inside the outer shell (4); each sliding block (204) passes through the fixed ring (101) and is inserted into a corresponding fixing groove in the outer shell (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).

9. A small filter that is easy to clean according to claim 8, characterized in that: It also includes a limiting block (207); the lower side of each second sliding groove (4004) is slidably connected to the limiting block (207); and a spring is fixedly connected between the limiting block (207) and the housing (4).

10. A small filter that is easy to clean according to claim 8, 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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