CN219764676U - Cleaning mechanism and back flush filter - Google Patents

Abstract

The utility model discloses a cleaning mechanism and a backwashing filter, which comprise a flushing assembly, wherein the flushing assembly comprises a water delivery piece, a water spraying piece, a reciprocating piece and a water stop valve, the water delivery piece is matched with the water spraying piece, the reciprocating piece and the water stop valve, the water spraying piece is connected with the reciprocating piece, the reciprocating piece is connected with the water stop valve, impurities on a filter screen are cleaned by the water spraying piece through the flushing assembly, the reciprocating piece can flush the filter screen back and forth, the cleaning efficiency is improved, and the filter screen is ensured not to be influenced by a plug; the water filtering assembly comprises a water containing tank and a filter screen, the filter screen is matched with the water containing tank, and the filter screen can be backwashed and cleaned through a flushing assembly matched with a matching hole by arranging the matching of the water containing tank and the filter screen, so that the filter screen is not required to be manually cleaned, and backwash work is realized.

Description

Cleaning mechanism and back flush filter

Technical Field

The utility model relates to the field of wastewater treatment, in particular to a cleaning mechanism and a backwashing filter.

Background

A large amount of ash flushing water and dust removing water are generated in the working process of the thermal power plant, if the waste water is directly discharged, serious pollution is caused, the waste water is required to be purified and recycled for environmental protection and energy conservation and emission reduction, impurities in the ash flushing water and the dust removing water are required to be filtered in the waste water treatment process, the ash flushing water is reused after reaching the standard, and the closed cycle of the ash flushing water is realized.

When the filter is used for filtering, the filter screen can be blocked by waste residues, and the cleaning is not clean, so that the filtering effect is reduced, and the filtering efficiency is affected; the filter screen for filtering the wastewater is laborious when manually cleaning the wastewater, and the filter is required to have a back flushing function.

Disclosure of Invention

This section is intended to summarize some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments, which may be simplified or omitted in this section, as well as the description abstract and the title of the utility model, to avoid obscuring the objects of this section, description abstract and the title of the utility model, which is not intended to limit the scope of this utility model.

The present utility model has been made in view of the above and/or problems occurring in the prior art.

Therefore, the first technical problem to be solved by the utility model is that the filter is blocked by waste residues when the filter is used for filtering, and the filter effect is reduced due to uncleanness, so that the filtering efficiency is affected.

In order to solve the technical problems, the utility model provides the following technical scheme: the flushing assembly comprises a water delivery piece, a water spraying piece, a reciprocating piece and a water stop valve, wherein the water delivery piece is matched with the water spraying piece, the reciprocating piece and the water stop valve, the water spraying piece is connected with the reciprocating piece, and the reciprocating piece is connected with the water stop valve.

As a preferable mode of the cleaning mechanism of the present utility model, wherein: the reciprocating piece comprises a sliding block, an elastic buckle, a lifting tube and a first spring, wherein the elastic buckle is matched with the sliding block, the lifting tube is arranged on the side surface of the sliding block, and the first spring is arranged at the upper end of the inner side surface of the lifting tube; the sliding block comprises a buckling groove, a connecting column and a limiting sliding block, wherein the buckling groove is formed in the side face of the sliding block, the connecting column is arranged in a round hole in the side face of the sliding block, and the limiting sliding block is arranged on the side face of the sliding block.

As a preferable mode of the cleaning mechanism of the present utility model, wherein: the elastic buckle comprises a clamping head, a guide post, a limiting piece and a second spring, wherein the guide post and the second spring are arranged on the side face of the clamping head, and the limiting piece is arranged on the side face of the guide post;

the lifting pipe comprises a semicircular pipe and a lifting sleeve, and the semicircular pipe is arranged on the upper side of the lifting sleeve.

As a preferable mode of the cleaning mechanism of the present utility model, wherein: the water spraying piece comprises a water spraying head, a lifting barrel, a lifting column and a third spring, wherein the lifting barrel and the lifting column are arranged on the lower side face of the water spraying head, and the third spring is arranged on the lower side face of the lifting barrel.

As a preferable mode of the cleaning mechanism of the present utility model, wherein: the water stop valve comprises a valve shell, a valve core and a mounting block, wherein the valve core is matched with the valve shell, the mounting block is arranged above the valve shell, and the valve shell is a T-shaped pipe structure shell; the valve casing comprises a water inlet, a water outlet and a matching groove, wherein the water inlet is arranged on one side of the valve casing, the water outlet is arranged on the other side of the valve casing, and the matching groove is arranged on the upper side of the valve casing.

As a preferable mode of the cleaning mechanism of the present utility model, wherein: the valve core comprises a plunger, a water through hole and a connecting hole, wherein the water through hole is formed in the circumferential surface of the cylinder at the bottom of the plunger, and the connecting hole is formed in the circumferential surface of the cylinder at the top of the plunger; the installation block comprises a sliding groove and limiting grooves, the sliding groove is formed in the side face of the installation block, the limiting grooves are formed in the inner side face of the installation block, the limiting grooves are arranged in pairs, and each pair of limiting grooves is formed in the same side face of the installation block and is arranged in an up-down mode.

As a preferable mode of the cleaning mechanism of the present utility model, wherein: the water delivery piece comprises a fixed ring, a sliding column and a sliding barrel, wherein the fixed ring is arranged inside the water delivery piece pipeline, the sliding column and the sliding barrel are arranged on the outer wall of the water delivery piece pipeline, and the sliding column and the sliding barrel are coaxial.

The first beneficial effect of the utility model is as follows: through setting up the washing subassembly, the impurity on the water spray washs the filter screen, and the reciprocating member is realized washing the filter screen back and forth, improves cleaning efficiency, guarantees that the filter screen can not be by the stopper of gambling influence filtration efficiency.

Therefore, the second technical problem to be solved by the utility model is that the filter screen for filtering the wastewater is laborious when manually cleaning the wastewater, and the filter is required to have a back flushing function. .

In order to solve the technical problems, the utility model provides the following technical scheme: the water filtering assembly comprises a water containing tank and a filter screen, wherein the filter screen is matched with the water containing tank.

As a preferable mode of the backwash prevention filter of the present utility model, wherein: the water tank comprises a sewage inlet, a first water outlet, a second water outlet and a matching port, wherein the sewage inlet is arranged on the side face of the cylindrical surface of the water tank, the first water outlet, the second water outlet and the matching port are arranged on the bottom face of the water tank, and the matching port is matched with the water conveying piece.

As a preferable mode of the backwash prevention filter of the present utility model, wherein: the filter screen comprises a first water outlet hole, a second water outlet hole and a matching hole, and the first water outlet hole, the second water outlet hole and the matching hole are formed in the bottom surface of the filter screen.

The second beneficial effect of the utility model is as follows: through setting up the cooperation of flourishing water pitcher and filter screen, make the filter screen can be through the cooperation hole complex washing subassembly to the filter screen back flush clean, need not the manual work clearance filter screen, realize the back flush function.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic view of a cleaning mechanism and a flushing assembly in a backwash filter according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a cleaning mechanism and backwash filter flushing assembly according to one embodiment of the present utility model;

FIG. 3 is an exploded view of a cleaning mechanism and a flushing assembly in a backflushing filter according to one embodiment of the present utility model;

fig. 4 is a schematic structural view of an elastic buckle in a cleaning mechanism and a backwash filter according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a washing assembly and a water filtering assembly in a washing mechanism and a back washing filter according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a connection structure of all parts in a cleaning mechanism and a backwash filter according to an embodiment of the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

In the following detailed description of the embodiments of the present utility model, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration only, and in which is shown by way of illustration only, and in which the scope of the utility model is not limited for ease of illustration. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Further still, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a cleaning mechanism including a flushing assembly 100.

The flushing assembly 100 comprises a water delivery piece 101, a water spraying piece 102, a reciprocating piece 103 and a water stop valve 104, wherein the water delivery piece 101 is matched with the water spraying piece 102, the reciprocating piece 103 and the water stop valve 104, the water spraying piece 102 is connected with the reciprocating piece 103, and the reciprocating piece 103 is connected with the water stop valve 104; the water delivery piece 101 is used for connecting other components and connecting a waterway, the water spraying piece 102 is used for spraying water pressure in a pipeline in a fan shape and driving the device to move upwards when internal water pressure rises, the reciprocating piece 103 can be driven by the up-and-down movement of the water spraying piece to close and open the water stop valve 104, the water stop valve 104 moves upwards along with the reciprocating piece 103 to close a water inlet channel, the water inlet channel is opened by the downward movement, and the water spraying piece 102 and the water delivery piece 101 can slide up and down in the water delivery piece 101 in a matched manner and ensure the waterway to be sealed.

The water delivery piece 101 comprises a fixed ring 101a, a sliding column 101b and a sliding barrel 101c, wherein the fixed ring 101a is arranged inside a pipeline of the water delivery piece 101, the sliding column 101b and the sliding barrel 101c are arranged on the outer wall of the pipeline of the water delivery piece 101, and the sliding column 101b and the sliding barrel 101c are coaxial; the fixed ring 101a is used for elastically connecting the water delivery piece 101 and the water spraying piece 102, the sliding column 101b is used for being in sliding fit with the reciprocating piece 103, and the sliding barrel 101c is a matching channel of the water spraying piece 102 and the reciprocating piece 103, so that the sealing waterproof performance of the device is ensured.

When the water delivery device is used, the water delivery piece 101 is an L-shaped water pipe, high-pressure water is input into a water path at the lower end through the water stop valve 104, the high-pressure water enters the water spray piece 102, the water spray piece 102 moves upwards under pressure and outwards sprays fan-shaped high-pressure water from a spray head, the upward movement of the water spray piece 102 can drive the reciprocating piece 103 to move upwards, and the upward movement of the reciprocating piece 103 closes the water stop valve 104 to stop water delivery to the device. After the device stops injecting water, the elastic connection of the water spraying piece 102 and the water conveying piece 101 can pull the water spraying piece 102 to move downwards to continuously spray water outwards, the downward movement of the water spraying piece 102 pulls the reciprocating piece 103 to move downwards, the downward movement of the reciprocating piece 103 drives the water stop valve 104 to open, the device restarts injecting water, and the up-and-down reciprocating high-pressure fan-shaped flushing during the water spraying of the device is repeatedly realized.

Example 2

Referring to fig. 1 to 4, a second embodiment of the present utility model provides a cleaning mechanism implementation manner based on the previous embodiment.

The reciprocating member 103 comprises a sliding block 103a, an elastic buckle 103b, a lifting tube 103c and a first spring 103d, wherein the elastic buckle 103b is matched with the sliding block 103a, the lifting tube 103c is arranged on the side face of the sliding block 103a, the first spring 103d is arranged at the upper end of the inner side face of the lifting tube 103c, the sliding block 103a comprises a buckling groove 103a-1, a connecting column 103a-2 and a limit sliding block 103a-3, the buckling groove 103a-1 is arranged on the side face of the sliding block 103a, the connecting column 103a-2 is arranged in a round hole on the side face of the sliding block 103a, and the limit sliding block 103a-3 is arranged on the side face of the sliding block 103 a; the sliding block 103a is used for being connected with the water stop valve 104, the water stop valve 104 can be opened and closed, the elastic buckle 103b limits the sliding block 103a, the sliding block 103a can be used for completely opening or closing the water stop valve 104, the lifting pipe 103c moves up and down under the movement of the water spraying piece 102, the first spring 103d is compressed or relaxed when the water spraying piece 102 moves, the sliding block 103a is matched with the elastic buckle 103b to completely open or close the water stop valve 104, the connecting column 103a-2 is used for being connected with the water stop valve 104, the buckle groove 103a-1 is matched with the elastic buckle 103b in a connecting mode, and the limiting sliding block 103a-3 can be used for guaranteeing the up-down movement direction of the sliding block 103 a.

The elastic buckle 103b comprises a clamping head 103b-1, a guide pillar 103b-2, a limiting piece 103b-3 and a second spring 103b-4, wherein the guide pillar 103b-2 and the second spring 103b-4 are arranged on the side surface of the clamping head 103b-1, the limiting piece 103b-3 is arranged on the side surface of the guide pillar 103b-2, the lifting tube 103c comprises a semicircular tube 103c-1 and a lifting sleeve 103c-2, and the semicircular tube 103c-1 is arranged on the upper side of the lifting sleeve 103 c-2; the clamping head 103b-1 can clamp the elastic clamp 103b in a fixed groove, the guide post 103b-2 ensures the moving direction of the clamp and the head, the limiting piece 103b-3 ensures the matching of the elastic clamp 103b and the clamp groove 103a-1, and the second spring 103b-4 provides the elastic force for the clamp and the head 103b-1 to be clamped into the groove.

The water spraying piece 102 comprises a water spraying head 102a, a lifting barrel 102b, a lifting column 102c and a third spring 102d, wherein the lifting barrel 102b and the lifting column 102c are arranged on the lower side surface of the water spraying head 102a, and the third spring 102d is arranged on the lower side surface of the lifting barrel 102 b; the spray nozzle 102a is a fan-shaped spray nozzle, a plurality of spray nozzles are distributed on the upper part of the water spraying piece 102, 10 spray nozzles are arranged on the fan-shaped spray nozzle, the lifting barrel 102b drives the water spraying piece 102 to move upwards when high-pressure water is injected into the lifting barrel 102b, the water injection third spring 102d stops to pull the water spraying piece 102 back to the original position in the lifting barrel 102b, and a disc is arranged at the bottom end of the lifting column 102c and connected with the first spring 103d to drive the reciprocating piece 103 to move.

The water stop valve 104 comprises a valve casing 104a, a valve core 104b and a mounting block 104c, wherein the valve core 104b is matched with the valve casing 104a, the mounting block 104c is arranged above the valve casing 104a, the valve casing 104a is a T-shaped pipe structure casing, the valve casing 104a comprises a water inlet 104a-1, a water outlet 104a-2 and a matching groove 104a-3, the water inlet 104a-1 is arranged on one side of the valve casing 104a, and the water outlet 104a-2 is arranged on the upper side of the valve casing 104 a; the valve housing 104a is used for being matched with the water delivery piece 101 to form a water delivery channel of the device, the valve core 104b can open or close the water delivery channel, the mounting block 104c is used for mounting the sliding block 103a, and the matching groove 104a-3 is used for being matched with the valve core 104 b.

The valve core 104b comprises a plunger 104b-1, a water through hole 104b-2 and a connecting hole 104b-3, wherein the water through hole 104b-2 is arranged on the cylindrical circumferential surface at the bottom of the plunger 104b-1, the connecting hole 104b-3 is arranged on the cylindrical circumferential surface at the top of the plunger 104b-1, the mounting block 104c comprises a sliding groove 104c-1 and a limiting groove 104c-2, the sliding groove 104c-1 is arranged on the side surface of the mounting block 104c, the limiting grooves 104c-2 are arranged on the inner side surface of the mounting block 104c in pairs, and each pair of limiting grooves 104c-2 are respectively arranged on the same side surface of the mounting block 104c up and down; the plunger 104b-1 and the valve housing 104a are matched to close the water stop valve 104, the water through hole 104b-2 is used for opening the water stop valve 104, the connecting hole 104b-3 and the connecting column 103a-2 are matched to connect the sliding block 103a with the valve core 104b, two pairs of sliding grooves 104-1 are provided with 4 sliding grooves, the two pairs of sliding grooves are symmetrically arranged in the mounting block 104c in a surface measurement mode and are matched with the two elastic buckles, the upper position and the lower position correspond to the position of the valve core 104b for closing the water stop valve 104, and the limiting groove 104c-2 is used for being matched with the limiting sliding block 103a-3 to ensure that the sliding block 103a slides up and down smoothly.

When the water pump is used, high-pressure water is injected into a water pipe connected with the water delivery piece 101 through the water through hole 104b-2 and the water outlet 104a-2, after the cavity in the pipeline matched with the water delivery piece 101 is filled with the water spray piece 102, the water pressure is continuously increased and then sprayed from the water spray head 102a for cleaning, meanwhile, the water spray piece 102 is continuously increased under the action of the high-pressure water, the third spring 102d is pulled, the lifting column 102c is lifted to push the first spring 103d to be continuously contracted, the first spring 103d starts to be clamped in the lower limit groove 104c-2 because the elastic clamp 103b is clamped in, the first spring 103d cannot push the reciprocating piece 103 to move up and down, then the water spray piece 102 continues to be lifted, the first spring 103d is further compressed until the elastic clamp 103b cannot limit the reciprocating piece 103, the reciprocating piece 103 is separated from the lower limit groove 104c-2, the reciprocating piece 103 is clamped into the upper limit groove 104c-2 by the elastic clamp 103b of the first spring 103d under the action of the compressed first spring 103d, and the valve core 104b is also pulled to be closed along with the high-speed of the reciprocating piece 103 to stop water injection valve.

After the valve is closed, the water spraying piece 102 moves downwards under the action of gravity and the third spring 102, the water spraying head 102a still continuously sprays water, the first spring 103d is driven to be pulled away by the downwards movement of the water spraying piece 102, the first spring 103d cannot pull the reciprocating piece 103 to move up and down because the elastic buckle 103b is clamped in the upper limiting groove 104c-2, but the elastic force of the third spring 102 continuously pulls the water spraying head 102a of the water spraying piece 102 back to continuously spray water, the lifting column 102c continuously pulls away the first spring 102d until the elastic buckle 103b cannot limit the reciprocating piece 103, the reciprocating piece 103 moves downwards until the elastic buckle 103b is clamped in the lower limiting groove 104c-2, the valve core 104b is pushed to open by pushing the reset valve, and high-pressure water is injected into the water conveying piece 101 through the water through holes 104b-2 and the water outlet 104a-2 to reciprocate repeatedly, so that a more efficient cleaning effect is achieved.

Example 3

Referring to fig. 5 and 6, a third embodiment of the present utility model, based on the two embodiments, provides a back flushing filter implementation.

The water filtering assembly 200 comprises a water containing tank 201 and a filter screen 202, wherein the filter screen 202 is matched with the water containing tank 201; the filter screen is used for filtering sewage clean, and the water holding tank 201 is used for connecting all parts and connecting the device into a waterway.

The water holding tank 201 comprises a sewage inlet 201a, a first water outlet 201b, a second water outlet 201c and a matching port 201d, wherein the sewage inlet 201a is arranged on the side surface of the cylindrical surface of the water holding tank 201, the first water outlet 201b, the second water outlet 201c and the matching port 201d are arranged on the bottom surface of the water holding tank 201, and the matching port 201d is matched with the water conveying piece 101; the sewage inlet 201a is used for connecting a sewage pipe in a circulating waterway to inject sewage into the tank body, the first water outlet 201b discharges filtered clean water, the matching port 201d is used for matching with the flushing assembly 100, and the second water outlet 201c discharges the sewage in the water holding tank 201 after flushing is completed.

The filter screen 202 comprises a first water outlet 202a, a second water outlet 202b and a matching hole 202c, wherein the first water outlet 202a, the second water outlet 202b and the matching hole 202c are arranged on the bottom surface of the filter screen 202; the first water outlet 202a is matched with the first water outlet, the second water outlet 202b is matched with the second water outlet 201c, and the matching hole 202c is matched with the matching port 201 d.

When the device is started, the sewage in the sewage inlet 201a and the first water outlet 201b opening system is controlled to be injected into the water containing tank 201, and the sewage is discharged into the circulating waterway from the first water outlet 201b after passing through the filter screen 202 for reuse; if the filter screen 202 is blocked by waste residues, the water level in the water holding tank 201 rises, the water output of the first water outlet 201b is slowed down, the electromagnetic control valves of the sewage inlet 201a and the first water outlet 201b are controlled to be closed, the waterway control valve connected with the cleaning assembly 100 and the second water outlet 202b is opened, the cleaning assembly 100 cleans the filter screen 202, sewage is discharged from the second water outlet, and after cleaning, the electromagnetic control valve on the connecting pipeline of the cleaning assembly 100 and the second water outlet 202b is closed, and the filtering work is restarted.

It is important to note that the construction and arrangement of the utility model as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present utility model. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility models. Therefore, the utility model is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the utility model, or those not associated with practicing the utility model).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. A cleaning mechanism, characterized in that: comprising the steps of (a) a step of,

the flushing assembly (100) comprises a water conveying piece (101), a water spraying piece (102), a reciprocating piece (103) and a water stop valve (104), wherein the water conveying piece (101) is matched with the water spraying piece (102), the reciprocating piece (103) and the water stop valve (104), the water spraying piece (102) is connected with the reciprocating piece (103), and the reciprocating piece (103) is connected with the water stop valve (104).

2. The cleaning mechanism of claim 1, wherein: the reciprocating piece (103) comprises a sliding block (103 a), an elastic buckle (103 b), a lifting tube (103 c) and a first spring (103 d), wherein the elastic buckle (103 b) is matched with the sliding block (103 a), the lifting tube (103 c) is arranged on the side face of the sliding block (103 a), and the first spring (103 d) is arranged at the upper end of the inner side face of the lifting tube (103 c);

the sliding block (103 a) comprises a buckling groove (103 a-1), a connecting column (103 a-2) and a limiting sliding block (103 a-3), wherein the buckling groove (103 a-1) is formed in the side face of the sliding block (103 a), the connecting column (103 a-2) is arranged in a round hole in the side face of the sliding block (103 a), and the limiting sliding block (103 a-3) is arranged on the side face of the sliding block (103 a).

3. The cleaning mechanism of claim 2, wherein: the elastic buckle (103 b) comprises a clamping head (103 b-1), a guide pillar (103 b-2), a limiting piece (103 b-3) and a second spring (103 b-4), wherein the guide pillar (103 b-2) and the second spring (103 b-4) are arranged on the side face of the clamping head (103 b-1), and the limiting piece (103 b-3) is arranged on the side face of the guide pillar (103 b-2);

the lifting pipe (103 c) comprises a semicircular pipe (103 c-1) and a lifting sleeve (103 c-2), and the semicircular pipe (103 c-1) is arranged on the upper side of the lifting sleeve (103 c-2).

4. A cleaning mechanism according to claim 2 or 3, wherein: the water spraying piece (102) comprises a water spraying head (102 a), a lifting barrel (102 b), a lifting column (102 c) and a third spring (102 d), wherein the lifting barrel (102 b) and the lifting column (102 c) are arranged on the lower side face of the water spraying head (102 a), and the third spring (102 d) is arranged on the lower side face of the lifting barrel (102 b).

5. The cleaning mechanism of claim 4, wherein: the water stop valve (104) comprises a valve shell (104 a), a valve core (104 b) and a mounting block (104 c), wherein the valve core (104 b) is matched with the valve shell (104 a), the mounting block (104 c) is arranged above the valve shell (104 a), and the valve shell (104 a) is a T-shaped pipe structure shell;

the valve housing (104 a) comprises a water inlet (104 a-1), a water outlet (104 a-2) and a matching groove (104 a-3), wherein the water inlet (104 a-1) is formed in one side of the valve housing (104 a), the water outlet (104 a-2) is formed in the other side of the valve housing (104 a), and the matching groove (104 a-3) is formed in the upper side of the valve housing (104 a).

6. The cleaning mechanism of claim 5, wherein: the valve core (104 b) comprises a plunger (104 b-1), a water through hole (104 b-2) and a connecting hole (104 b-3), wherein the water through hole (104 b-2) is formed in the circumferential surface of the bottom cylinder of the plunger (104 b-1), and the connecting hole (104 b-3) is formed in the circumferential surface of the top cylinder of the plunger (104 b-1);

the mounting block (104 c) comprises a sliding groove (104 c-1) and limiting grooves (104 c-2), the sliding groove (104 c-1) is arranged on the side face of the mounting block (104 c), the limiting grooves (104 c-2) are arranged on the inner side face of the mounting block (104 c), the limiting grooves (104 c-2) are arranged in pairs, and each pair of limiting grooves (104 c-2) are arranged on the same side face of the mounting block (104 c) up and down.

7. The cleaning mechanism of claim 5 or 6, wherein: the water delivery piece (101) comprises a fixed ring (101 a), a sliding column (101 b) and a sliding barrel (101 c), wherein the fixed ring (101 a) is arranged inside a water delivery piece (101) pipeline, the sliding column (101 b) and the sliding barrel (101 c) are arranged on the outer wall of the water delivery piece (101) pipeline, and the sliding column (101 b) and the sliding barrel (101 c) are coaxial.

8. A backflushing filter, characterized by: the cleaning mechanism according to any one of claims 1 to 7, comprising:

the water filtering assembly (200) comprises a water containing tank (201) and a filter screen (202), wherein the filter screen (202) is matched with the water containing tank (201).

9. The backwash filter as recited in claim 8 wherein: the water holding tank (201) comprises a sewage inlet (201 a), a first water outlet (201 b), a second water outlet (201 c) and a matching port (201 d), wherein the sewage inlet (201 a) is arranged on the side surface of the cylindrical surface of the water holding tank (201), the first water outlet (201 b), the second water outlet (201 c) and the matching port (201 d) are arranged on the bottom surface of the water holding tank (201), and the matching port (201 d) is matched with the water conveying piece (101).

10. The backwash filter according to claim 8 or 9, wherein: the filter screen (202) comprises a first water outlet hole (202 a), a second water outlet hole (202 b) and a matching hole (202 c), and the first water outlet hole (202 a), the second water outlet hole (202 b) and the matching hole (202 c) are arranged on the bottom surface of the filter screen (202).