Anti-blocking device for building water supply and drainage

Abstract

The invention relates to the technical field of building water supply and drainage anti-blocking, in particular to a building water supply and drainage anti-blocking device which comprises an installation cylinder used for being installed at the water inlet end of a pipe body. The first filter screen is arranged in the mounting cylinder; the second filter screen is arranged at the end part of the mounting cylinder, and the aperture of a filter hole of the second filter screen is larger than that of a filter hole of the first filter screen; the crushing mechanism is arranged between the first filter screen and the second filter screen and is used for cutting and crushing the dirt passing through the second filter screen; the inner wall cleaning mechanism is connected to the first filter screen and can extend into the pipe body, and the inner wall cleaning mechanism comprises a cleaning brush used for cleaning the inner wall at the water inlet end of the pipe body. According to the invention, dirt can be prevented from adhering to the inner side of the water inlet end of the pipeline to easily cause blockage of the pipeline, and the drainage smoothness of the pipeline is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of anti-blocking for building water supply and drainage, and in particular to an anti-blocking device for building water supply and drainage. Background Art

[0002] Building water supply and drainage actually includes two aspects: building water supply and building drainage. The sewage in the building is pumped out and discharged through water pipes connected to building facilities. At the same time, water is also supplied to the building through water pipes to facilitate residents' water use.

[0003] When the existing building water supply and drainage pipes are used to extract and discharge sewage from the building, residual dirt is likely to adhere to the inner wall of the pipe at the inlet of the drainage pipe. After a long time, it is easy to accumulate more and more dirt, causing blockage at the water inlet of the pipe, which is difficult to clean. In addition, the sewage often contains large and long dirt, which makes it very easy for the large and long dirt to accumulate and entangle together, causing blockage, affecting the normal drainage use of the drainage pipe. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide an anti-blocking device for building water supply and drainage to solve the existing problems.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides an anti-clogging device for building water supply and drainage, which is used to be installed at the water inlet end of a pipe body. The anti-clogging device includes:

[0007] A mounting cylinder for mounting on the water inlet end of the pipe body;

[0008] a first filter screen disposed in the mounting cylinder;

[0009] a second filter screen provided at the end of the mounting cylinder, wherein the filter hole diameter of the second filter screen is larger than the filter hole diameter of the first filter screen;

[0010] A crushing mechanism provided between the first filter screen and the second filter screen, for cutting and crushing dirt passing through the second filter screen;

[0011] An inner wall cleaning mechanism is connected to the first filter screen and can extend into the tube body. The inner wall cleaning mechanism includes a cleaning brush for cleaning the inner wall at the water inlet end of the tube body.

[0012] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that the crushing mechanism includes a second motor fixedly mounted on the first filter screen and a stacked cutting disc fixedly connected to the output end of the second motor;

[0013] The second motor can drive the stacked cutting disc to rotate, so that the stacked cutting disc cuts and crushes the dirt passing through the second filter screen in layers.

[0014] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that the crushing mechanism also includes a connecting rod connected to the top of the stacked cutting disk and a cutting blade rotatably connected to the end of the connecting rod, and the cutting blades are located on both sides of the stacked cutting disk.

[0015] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that the cutting blade is connected to the end of the connecting rod through a stirring rod, the stirring rod is arranged perpendicular to the connecting rod, and the cutting blade is rotatably arranged on the stirring rod.

[0016] A further improvement of the anti-clogging device for building water supply and drainage of the present invention is that the inner wall cleaning mechanism includes a first motor provided at the bottom of the first filter screen, a rotating frame connected to the output end of the first motor, a moving rod slidably provided on the rotating frame, a spring connected between the rotating frame and the moving rod, and a push rod connected to the moving rod and capable of being telescopically adjusted;

[0017] The first motor can drive the rotating frame to rotate;

[0018] The spring pushes the moving rod to move toward the end of the rotating frame;

[0019] The telescopic adjustment direction of the push rod is consistent with the setting direction of the tube body;

[0020] The cleaning brush is arranged on one side of the telescopic end of the push rod close to the tube body.

[0021] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that a slide groove is provided on the rotating frame, and a slide rod is supported in the slide groove;

[0022] One end of the moving rod is sleeved on the sliding rod, and the moving rod can move along the sliding rod;

[0023] The spring is sleeved on the slide rod, and one end of the spring is fixedly connected to the side wall corresponding to the slide groove, and the other end of the spring is fixedly connected to the moving rod. The spring pushes the moving rod to move along the slide rod toward the end of the rotating frame.

[0024] A further improvement of the anti-clogging device for building water supply and drainage of the present invention is that the installation cylinder is connected to the water inlet end of the pipe body by a snap-fit connection.

[0025] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that a portion of the installation tube is clamped on the water inlet end of the pipe body, and a rotatable clamping block and a torsion spring connected to the clamping block are provided on the portion of the installation tube clamped on the pipe body;

[0026] The outer wall of the water inlet end of the tube body is provided with a clamping groove corresponding to the clamping block;

[0027] The torsion spring applies elastic force to the clamping block so that the clamping block is clamped in the clamping groove, thereby enabling the installation tube to be clamped and connected to the water inlet end of the pipe body.

[0028] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that the mounting sleeve is provided with a mounting groove on the portion of the pipe body corresponding to the clamping block;

[0029] The clamping block is arranged in the mounting groove, and the clamping block is rotatably mounted on the mounting cylinder via a support rod;

[0030] The torsion spring is sleeved on the support rod, and one end of the torsion spring is fixedly connected to the clamping block, and the other end of the torsion spring is fixedly connected to the slot wall corresponding to the installation slot.

[0031] A further improvement of the anti-blocking device for building water supply and drainage of the present invention is that a pull rod is further provided on the outer wall of the installation cylinder, and the end of the pull rod extends into the installation groove and is fixedly connected to the block.

[0032] The beneficial effects of the anti-clogging device for building water supply and drainage of the present invention are:

[0033] The present invention cleans the inner surface of the water inlet end of the pipe body by arranging an inner wall cleaning mechanism, and the reaction force of the spring causes the moving rod to slide and open on the side wall of the sliding rod, so that the cleaning brush at the bottom end of the moving rod can fit tightly with the inner surface of the pipe body, and the first motor is started to drive the cross-shaped rotating frame to rotate, thereby driving the cleaning brush to rotate and clean the fitted pipe wall, and the electric push rod is extended and retracted to drive the fixed block to adjust the length, thereby driving the cleaning brush to adjust the length, so as to effectively scrub and clean the dirt adhered to the inner wall of the pipe body, and avoid the residual dirt on the inner wall of the water inlet of the pipe body adhering to the inner wall of the pipe, which accumulates more and more over time and causes blockage at the water inlet of the pipe.

[0034] The present invention uses the second filter screen to perform initial filtration and separation on large-volume dirt, and drives the stacked cutting disc to rotate through the rotation of the second motor to cut and crush the large and long dirt that is easy to cause blockage in layers. The second motor drives the connecting rod to rotate and then drives the stirring rod to rotate to stir the dirt, and at the same time drives the cutting blade to rotate under force to further cut and crush the dirt, so that the dirt is broken into a size that can be filtered through the first filter screen, thereby achieving the purpose of effectively crushing the large and long dirt, and avoiding the large and long dirt from piling up and entangled together, which is very likely to cause blockage and affect the normal drainage use of the pipe body.

[0035] The present invention uses an external pull rod to drive the clamping block to rotate and retract into the side wall of the installation tube. The installation tube is aligned with the tube body and inserted. When the pull rod is released, the reaction force of the torsion spring causes the clamping block to rotate and rebound to fit into the clamping groove of the side wall of the tube body to form a clamping connection and fixation, completing convenient installation, thereby achieving the purpose of easy installation and fixation, simple and convenient operation, saving time and effort. Furthermore, by pulling the external pull rod to release the clamping block and the clamping groove, the installation tube can be pulled out to achieve convenient disassembly, achieving the purpose of facilitating disassembly of the device and thus facilitating maintenance and replacement of the device.

[0036] The present invention can prevent dirt from adhering to the inner side of the water inlet end of the pipeline, which may cause the pipeline to be easily blocked, and effectively improves the drainage patency of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural schematic diagram of the anti-clogging device for building water supply and drainage of the present invention installed on the pipe body.

[0038] Figure 2 This is a structural cross-sectional view of the anti-clogging device for building water supply and drainage of the present invention installed on the pipe body.

[0039] Figure 3 for Figure 2 A magnified view of the structure in Figure 2.

[0040] Figure 4 This is a top view of the structure of the anti-clogging device for building water supply and drainage of the present invention after omitting the second filter screen.

[0041] Figure 5 This is a bottom view of the structure of the rotating frame in the anti-clogging device for building water supply and drainage of the present invention.

[0042] Figure 6 This is a schematic diagram of the structure of the first filter screen in the anti-clogging device for building water supply and drainage of the present invention.

[0043] Figure 7 This is a schematic diagram of the structure of the second filter screen in the anti-clogging device for building water supply and drainage of the present invention.

[0044] Figure 8 This is an enlarged view of the inner wall cleaning mechanism structure in the anti-clogging device for building water supply and drainage of the present invention. DETAILED DESCRIPTION

[0045] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] See Figure 1 The present invention provides an anti-clogging device for building water supply and drainage, which is installed at the water inlet end of a pipe body to clean the inner wall of the pipe body and break up large amounts of dirt. This prevents dirt from adhering to the inner side of the water inlet end of the pipe body, which could easily cause blockage in the pipe, thereby effectively improving the patency of the pipe drainage. The following describes the foundation pit composite support structure of the present invention with reference to the accompanying drawings.

[0047] See Figure 1 , shows a schematic diagram of the structure of the anti-blocking device for building water supply and drainage of the present invention installed on the pipe body. Figure 2 , shows a cross-sectional view of the structure of the anti-blocking device for building water supply and drainage of the present invention installed on the pipe body. Figure 1 and Figure 2 , the structure of the anti-clogging device for building water supply and drainage of the present invention is explained.

[0048] like Figure 1 and Figure 2 As shown, the anti-clogging device for building water supply and drainage of the present invention includes a mounting cylinder 3, a first filter screen 4, a second filter screen 24, a crushing mechanism and an inner wall cleaning mechanism, wherein the mounting cylinder 3 is used to be installed at the water inlet end of the pipe body 1; the first filter screen 4 is installed on the inner side of the mounting cylinder 3, and the second filter screen 24 is installed at the end of the mounting cylinder 3, and the filter hole diameter of the second filter screen 24 is larger than the filter hole diameter of the first filter screen 4; the crushing mechanism is arranged between the first filter 4 and the second filter screen 24, and the crushing mechanism is used to cut and crush the dirt passing through the second filter screen 24; the inner wall cleaning mechanism is connected to the first filter screen 4, and the inner wall cleaning mechanism can be extended into the pipe body 1, and the inner wall cleaning mechanism includes a cleaning brush 13 for cleaning the inner wall at the water inlet end of the pipe body 1.

[0049] The pipe body 1 of the present invention is a drainage pipe. The water inlet end of the pipe body 1 is placed in sewage, and then the sewage is pumped out through the pipe body 1 by a pumping device for discharge. The anti-clogging device for building water supply and drainage of the present invention is used to be installed at the water inlet end of the pipe body 1 to filter and separate the dirt to avoid pipe blockage. For the dirt that enters between the second filter screen 24 and the first filter screen 4, the dirt can also be cut and crushed by a crushing mechanism so that the crushed dirt can pass through the first filter screen 4 and be discharged. The cleaning brush on the inner wall cleaning mechanism can scrub and clean the inner wall surface of the water inlet end of the pipe body 1 to prevent the residual dirt on the inner wall of the pipe body water inlet from adhering to the inner wall of the pipe, accumulating over time and causing blockage at the water inlet of the pipe.

[0050] In a specific embodiment of the present invention, Figure 1 、 Figure 2 and Figure 4 As shown, the crushing mechanism includes a second motor 14 fixedly mounted on the first filter 4 and a stacked cutting disc 15 fixedly connected to the output end of the second motor 14; the second motor 14 can drive the stacked cutting disc 15 to rotate, and then the stacked cutting disc 15 cuts and crushes the dirt passing through the second filter 24 in layers.

[0051] Furthermore, the stacked cutting discs 15 include multiple circular blades stacked one above the other. Cutting blades are provided along the circumference of the circular blades. The sizes of the multiple circular blades decrease in the opposite direction from the first filter 4 to the second filter 24. The multiple circular blades improve the efficiency of cutting and crushing waste. The multiple circular blades can be mounted on the output terminal of the second motor 14, or the multiple circular blades can be fixedly connected together and then fixedly connected to the output terminal of the second motor 14.

[0052] Furthermore, if Figure 2 and Figure 4 As shown, the crushing mechanism also includes a connecting rod 16 connected to the top of the stacked cutting disc 15 and cutting blades 18 rotatably connected to the ends of the connecting rod 16. The cutting blades 18 are located on both sides of the stacked cutting disc 15. The second motor 14 drives the stacked cutting disc 15 to rotate, and the stacked cutting disc 15 rotates with the connecting rod 16, which in turn rotates the cutting blades 18. During the rotation process, the cutting blades 18 can not only cut and crush the waste, but also stir the waste, thereby improving the waste crushing effect.

[0053] Furthermore, if Figure 1 and Figure 2As shown, the cutting blade 18 is connected to the end of the connecting rod 16 via a stirring rod 17. The stirring rod 17 is arranged perpendicular to the connecting rod 16, and the cutting blade 18 is rotatably mounted on the stirring rod 17. The arrangement of the stirring rod 17 allows the cutting blade 18 to approach the first filter 4. The stirring rod 17 also stirs the dirt, allowing the dirt to be as close to the stacked cutting disc 15 as possible between the first filter 4 and the second filter 24, thereby improving the dirt crushing effect and preventing the dirt from clogging the first filter 4.

[0054] Furthermore, if Figure 6 As shown, the first filter screen 4 is a circular component, wherein the middle part is provided with transverse and longitudinal ribs, which are arranged in a cross-shaped manner, and a circular connecting plate is provided at the cross intersection of the transverse and longitudinal ribs. Figure 2 As shown, the second motor 14 is fixed to the connecting plate. An outer ring plate is provided on the outer edge of the first filter screen 4, which is used to secure the first filter screen 4 to the inner side of the mounting cylinder 3. The first filter screen 4 can be welded to the inner side of the mounting cylinder 3. A plurality of filter holes are formed within the first filter screen 4. Preferably, the aperture of the filter holes of the first filter screen 4 is 0.1-0.5 times the aperture of the filter holes of the second filter screen 24. The first filter screen 4 and the second filter screen 24 can filter and separate waste of different sizes.

[0055] In a specific embodiment of the present invention, Figure 2 and Figure 8 As shown, the inner wall cleaning mechanism includes a first motor 5 arranged at the bottom of the first filter 4, a rotating frame 6 connected to the output end of the first motor 5, a moving rod 9 slidably arranged on the rotating frame 6, a spring 10 connected between the rotating frame 6 and the moving rod 9, and a push rod 11 connected to the moving rod 9 and telescopically adjustable; the first motor 5 can drive the rotating frame 6 to rotate; the spring 10 pushes the moving rod 9 to move toward the end of the rotating frame 6; the telescopic adjustment direction of the push rod 11 is consistent with the setting direction of the tube body 1; the cleaning brush 13 is provided on the telescopic end of the push rod 11 on the side close to the tube body 1.

[0056] Therefore, the cleaning brush 13 on the inner wall cleaning mechanism can be closely attached to the inner surface of the tube body 1, and the extension and retraction of the push rod 11 can move the cleaning brush 13 up and down along the inner surface of the tube body 1, thereby scrubbing the inner surface of the tube body 1 up and down. The first motor 5 drives the rotating frame 6 to rotate, and the rotating frame 6 then rotates with the cleaning brush 13 through the moving rod 9 and the push rod 11, thereby scrubbing the inner surface of the tube body 1 in a circumferential direction. Therefore, through the rotation of the rotating frame 6 and the extension and retraction of the push rod 11, the cleaning brush 13 can fully scrub the inner surface of the water inlet end of the tube body 1, thereby preventing dirt from adhering to the inner surface of the water inlet end and causing blockage.

[0057] Furthermore, if Figure 2 and Figure 5 As shown, a slide groove 7 is provided on the rotating frame 6, and a slide rod 8 is supported in the slide groove 7; one end of the moving rod 9 is mounted on the slide rod 8, and the moving rod 9 can move along the slide rod 8; a spring 10 is mounted on the slide rod 8, and one end of the spring 10 is fixedly connected to the side wall corresponding to the slide groove 7, and the other end of the spring 10 is fixedly connected to the moving rod 9, and the spring 10 pushes the moving rod 9 to move along the slide rod 8 toward the end of the rotating frame 6. A through hole is provided at one end of the moving rod 9, through which the moving rod 9 can be mounted on the slide rod 8 and can slide along the slide rod 8. The action of the spring 10 pushes the moving rod 9 to slide along the slide rod 8, so that the cleaning brush 13 can be closely attached to the inner surface of the tube body 1, thereby improving the cleaning effect of the cleaning brush 13.

[0058] Furthermore, the mounting tube 3 is mounted on the water inlet end of the pipe body 1, the bottom of the rotating frame 6 contacts the end surface of the pipe body 1, and the push rod 11 partially extends into the interior of the pipe body 1. The push rod 11 is preferably an electric push rod that can be telescopically adjusted.

[0059] A fixing block 12 is fixedly connected to the telescopic end of the push rod 11 . A cleaning brush 13 is fixedly connected to the side of the fixing block 12 facing the inner surface of the tube body 1 . The fixing block 12 provides strong support for the cleaning brush 13 .

[0060] Furthermore, the first motor 5 is fixedly connected to the bottom of the connecting plate in the middle of the first filter 4 .

[0061] Furthermore, the rotating frame 6 is a cross plate, on which are disposed four slide slots 7, four slide rods 8, four moving rods 9, four springs 10, four push rods 11, four fixed blocks 12, and four cleaning brushes 13. The output end of the first motor 5 is fixedly connected to the middle portion of the rotating frame 6, and can drive the rotating frame 6 to rotate.

[0062] In a specific embodiment of the present invention, Figure 1 、 Figure 2 and Figure 7 As shown, the second filter screen 24 is a circular screen plate with a ring plate provided around its periphery, through which the second filter screen 24 is fixed to the end face of the mounting cylinder 3. Preferably, the second filter screen 24 is embedded in the port of the mounting cylinder 3, and the ring plate can be welded to the mounting cylinder 3.

[0063] In a specific embodiment of the present invention, Figures 1 to 3 As shown, the installation cylinder 3 is snap-connected to the water inlet end of the pipe body 1. The snap-connection facilitates installation and removal of the installation cylinder 3.

[0064] Furthermore, if Figure 2 and Figure 3 As shown, the mounting tube 3 is partially clamped on the water inlet end of the tube body 1, and a rotatable clamping block 20 and a torsion spring 21 connected to the clamping block 20 are provided on the part of the mounting tube 3 clamped on the tube body 1; a clamping groove 2 is provided on the outer wall of the water inlet end of the tube body 1 corresponding to the clamping block 20; the torsion spring 21 applies elastic force to the clamping block 20 so that the clamping block 20 is clamped in the clamping groove 2, thereby making the mounting tube 3 clamped and connected to the water inlet end of the tube body 1.

[0065] The card groove 2 is provided on the outer wall of the pipe body 1, and the bottom of the card groove 2 does not pass through the pipe body 1. When installing the anti-clogging device for building water supply and drainage of the present invention, the card groove 2 can be processed at the corresponding position of the outer wall of the pipe body 1, and then the installation tube 3 is clamped on the pipe body 1. After the rotating frame 6 contacts the end face of the pipe body 1, the card block 20 can be clamped into the corresponding card groove 2.

[0066] Furthermore, if Figure 2 and Figure 3 As shown, the part of the mounting cylinder 3 that is inserted into the tube body 1 corresponds to the block 20 and is provided with a mounting groove 25; the block 20 is arranged in the mounting groove 25, and the block 20 is rotatably mounted on the mounting cylinder 3 through a support rod 19; the torsion spring 21 is sleeved on the support rod 19, and one end of the torsion spring 21 is fixedly connected to the block 20, and the other end of the torsion spring 21 is fixedly connected to the groove wall corresponding to the mounting groove 25.

[0067] like Figures 1 to 3 As shown, the lower end of the mounting tube 3 is provided with multiple extensions, the inner side of which is provided with a mounting groove 25, which is an elongated groove. A support rod 19 passes through one end of a clamping block 20, and both ends of the support rod 19 are fixed to the corresponding groove walls of the mounting groove 25. The clamping block 20 can rotate relative to the support rod 19. A torsion spring 21 is mounted on the support rod 19, providing elastic force to the clamping block 20, ensuring that the clamping block 20 is always retained in the clamping groove 2.

[0068] Furthermore, a pull rod 23 is provided on the outer wall of the installation cylinder 3, and the end of the pull rod 23 extends into the installation groove 25 and is fixedly connected to the clamping block 20. The provision of the pull rod 23 enables the operator to pull the clamping block 20 outward through the pull rod 23 to contact the clamping block 20 with the clamping groove 2, thereby facilitating the disassembly of the installation cylinder 3.

[0069] A support shaft 22 is provided on the end of the pull rod 23 that extends into the installation groove 25. The pull rod 23 can rotate relative to the support shaft 22. The support shaft 22 is fixedly connected to the block 20. Through the setting of the support shaft 22, when the block 20 is rotated out of the slot 2, the pull rod 23 can be adaptively rotated and adjusted relative to the support shaft 22.

[0070] The installation process and working principle of the anti-clogging device for building water supply and drainage of the present invention are described below.

[0071] During installation, a groove 2 is machined on the outer periphery of the pipe body 1, and then the pull rod 23 is pulled to drive the clamping block 20 into the installation groove 25, and the installation cylinder 3 is clamped onto the pipe body 1. When the rotating frame 6 contacts the end face of the pipe body 1, the pull rod 23 is released, and the action of the torsion spring 21 causes the clamping block 20 to be clamped into the groove 2, thus achieving the clamping connection between the installation cylinder 3 and the pipe body 1, completing a convenient installation with simple operation and labor-saving. Similarly, when it is necessary to replace the anti-blocking device for building water supply and drainage, it is only necessary to pull the pull rod 23 outward to release the clamping connection and then pull out the installation cylinder 3.

[0072] During use, the water inlet end of the pipe body 1 is placed in sewage, and the sewage is pumped out through the pipe body 1 for discharge by a pumping device. During the process of sewage discharge from the pipe body 1, the second filter 24 and the first filter 4 can filter the dirt in the sewage. The second motor 14 is activated, driving the laminated cutting disc 15, the connecting rod 16, the stirring rod 17, and the cutting blade 18 to rotate, stirring and cutting the dirt passing through the second filter 24, allowing the dirt to pass through the first filter 4 without being deposited on the first filter 4 and causing blockage. The first motor 5 is activated, driving the rotating frame 6 to rotate, and the push rod 11 is also activated and adjusted to extend and retract, allowing the cleaning brush 13 to move up and down and in a circular motion along the inner surface of the pipe body 1, effectively cleaning the inner surface of the pipe body 1 and preventing residual dirt on the inner wall of the water inlet of the pipe body 1 from adhering to the inner wall of the pipe and accumulating over time, causing blockage at the water inlet of the pipe.

[0073] The first motor 5, the second motor 14 and the push rod 11 of the present invention are all devices capable of underwater operation.

[0074] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. An anti-blocking device for building water supply and drainage, used to be installed at the water inlet end of a pipe body, characterized in that: The anti-blocking device comprises: A mounting cylinder for mounting on the water inlet end of the pipe body; a first filter screen disposed in the mounting cylinder; a second filter screen provided at the end of the mounting cylinder, wherein the filter hole diameter of the second filter screen is larger than the filter hole diameter of the first filter screen; A crushing mechanism provided between the first filter screen and the second filter screen, for cutting and crushing dirt passing through the second filter screen; An inner wall cleaning mechanism is connected to the first filter screen and can extend into the tube body. The inner wall cleaning mechanism includes a cleaning brush for cleaning the inner wall at the water inlet end of the tube body.

2. The anti-clogging device for building water supply and drainage according to claim 1, characterized in that: The crushing mechanism includes a second motor fixedly mounted on the first filter screen and a stacked cutting disc fixedly connected to the output end of the second motor; The second motor can drive the stacked cutting disc to rotate, so that the stacked cutting disc cuts and crushes the dirt passing through the second filter screen in layers.

3. The anti-clogging device for building water supply and drainage according to claim 2, characterized in that: The crushing mechanism further comprises a connecting rod connected to the top of the stacked cutting disc and a cutting blade rotatably connected to the end of the connecting rod, wherein the cutting blade is located on both sides of the stacked cutting disc.

4. The anti-clogging device for building water supply and drainage according to claim 3, characterized in that: The cutting blade is connected to the end of the connecting rod through a stirring rod. The stirring rod is arranged perpendicular to the connecting rod. The cutting blade is rotatably arranged on the stirring rod.

5. The anti-clogging device for building water supply and drainage according to claim 1, characterized in that: The inner wall cleaning mechanism includes a first motor provided at the bottom of the first filter screen, a rotating frame connected to the output end of the first motor, a moving rod slidably provided on the rotating frame, a spring connected between the rotating frame and the moving rod, and a push rod connected to the moving rod and capable of being telescopically adjusted; The first motor can drive the rotating frame to rotate; The spring pushes the moving rod to move toward the end of the rotating frame; The telescopic adjustment direction of the push rod is consistent with the setting direction of the tube body; The cleaning brush is arranged on one side of the telescopic end of the push rod close to the tube body.

6. The anti-clogging device for building water supply and drainage according to claim 5, characterized in that: The rotating frame is provided with a slide groove, and a slide rod is supported in the slide groove; One end of the moving rod is sleeved on the sliding rod, and the moving rod can move along the sliding rod; The spring is sleeved on the slide rod, and one end of the spring is fixedly connected to the side wall corresponding to the slide groove, and the other end of the spring is fixedly connected to the moving rod. The spring pushes the moving rod to move along the slide rod toward the end of the rotating frame.

7. The anti-clogging device for building water supply and drainage according to claim 1, characterized in that: The installation tube is connected to the water inlet end of the pipe body by snapping.

8. The anti-clogging device for building water supply and drainage according to claim 7, characterized in that: The installation tube has a portion of a sleeve on the water inlet end of the pipe body, and a rotatable clamping block and a torsion spring connected to the clamping block are provided on the portion of the installation tube sleeve on the pipe body; The outer wall of the water inlet end of the tube body is provided with a clamping groove corresponding to the clamping block; The torsion spring applies elastic force to the clamping block so that the clamping block is clamped in the clamping groove, thereby enabling the installation tube to be clamped and connected to the water inlet end of the pipe body.

9. The anti-clogging device for building water supply and drainage according to claim 8, characterized in that: The mounting sleeve is provided with a mounting groove on the portion of the pipe body corresponding to the clamping block; The clamping block is arranged in the mounting groove, and the clamping block is rotatably mounted on the mounting cylinder via a support rod; The torsion spring is sleeved on the support rod, and one end of the torsion spring is fixedly connected to the clamping block, and the other end of the torsion spring is fixedly connected to the slot wall corresponding to the installation slot.

10. The anti-clogging device for building water supply and drainage according to claim 9, characterized in that: A pull rod is further provided on the outer wall of the installation cylinder, and an end of the pull rod extends into the installation groove and is fixedly connected to the clamping block.

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