Waterproof drainage device for water conservancy construction

Abstract

The invention relates to the technical field of water prevention and drainage, in particular to a water conservancy construction water prevention and drainage device which comprises a drainage tank, the drainage tank comprises a shell and a filter cartridge installed in the shell, a water inlet and a drainage port are formed in the shell, and the axis of the filter cartridge is horizontally arranged; sewage entering the water inlet flows to the water outlet through the filter cartridge from top to bottom; the shell is provided with a first rotary driver for driving the filter cartridge to rotate around the axis of the filter cartridge in a reciprocating manner, sewage discharge channels are formed in the shell and located on the two sides of the filter cartridge, sewage baffles are hinged to the top ends of the sewage discharge channels, and the free ends of the bottoms of the sewage baffles block openings in the upper sides of the sewage discharge channels when attached to the outer wall of the filter cartridge; according to the technical scheme, the filter cartridge is driven by the first rotary driver to rotate in a reciprocating mode, sludge attached to the outer wall of the filter cartridge can be automatically cleaned in cooperation with the dirt blocking plate and the dirt discharging channel, impurities are prevented from being accumulated on the inner wall of the filter cartridge through reciprocating movement of the inner scraping disc, and the situation that the filtering effect is affected due to long-term attachment of the sludge is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of waterproofing and drainage, and in particular to a waterproofing and drainage device for water conservancy construction. Background Art

[0002] Water conservancy project construction refers to a series of construction operations carried out to build, renovate or repair water conservancy facilities. The purpose of water conservancy project construction is to ensure the utilization and management of water resources, provide water supply, irrigation, flood control, power generation, water supply and other functions, and maintain the stability and sustainability of the water environment.

[0003] Waterproof drainage devices for water conservancy project construction generally use a water pump to pump water into the body, and then the control switch activates the solenoid valve to discharge the water through the drain port. Chinese patent CN117248602A discloses a waterproof drainage device for water conservancy project construction, including a vertical rod, a first water outlet is arranged on the right side of the vertical rod, a drainage box is arranged above the first water outlet, a processing box is arranged behind the drainage box, a collection box is arranged on the right side of the processing box, a lifting and rotating mechanism for filtering water is arranged above the drainage box, and a cleaning mechanism for cleaning waste is arranged behind the drainage box. The cam inside the processing box is driven to rotate by the rotation of the worm, and the second filter screen is vibrated to prevent the waste on the surface of the second filter screen from adhering to the surface of the second filter screen, and then the worm wheel is driven to rotate by the threaded connection, thereby driving the connection block above the worm wheel to rotate, and then driving the push plate to clean the waste on the surface of the second filter screen. However, the traditional waterproof drainage device for water conservancy project construction has a poor filtering effect on water, and it is easy to cause the drainage port to be blocked during use, affecting work efficiency. Summary of the invention

[0004] In view of the above problems, it is necessary to provide a waterproof drainage device for water conservancy construction to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: A waterproof drainage device for water conservancy construction includes a drainage box, which includes a shell and a filter cartridge installed in the shell. The shell is provided with a water inlet located above the filter cartridge, and a drainage outlet located below the filter cartridge. The axis of the filter cartridge is horizontally arranged, and water entering the water inlet flows from top to bottom through the filter cartridge to the drainage outlet; a first rotating driver is arranged on the shell to drive the filter cartridge to rotate around its own axis, and a sewage channel is arranged on both sides of the filter cartridge inside the shell. A sewage baffle plate is hingedly installed at the top of the sewage channel, and the upper opening of the sewage channel is blocked when the bottom free end of the sewage baffle plate is in contact with the outer wall of the filter cartridge. When the sewage baffle plate rotates to release the top opening of the sewage channel, the sludge blocked by the sewage baffle plate enters the sewage channel; an inner scraper is coaxially arranged in the filter cartridge, and the circumferential side of the inner scraper is in contact with the inner wall of the filter cartridge, and the inner scraper can reciprocate along the axis of the filter cartridge to clean the inner wall of the filter cartridge.

[0006] Preferably, the filter cartridge is provided with first filter holes distributed at equal intervals on the side close to the water inlet, and the filter cartridge is provided with second filter holes distributed at equal intervals on the side close to the drain outlet, and the aperture of the second filter holes is smaller than the aperture of the first filter holes; the first filter holes and the second filter holes each occupy one-half of the overall area of ​​the filter cartridge, and the first rotary drive drives the filter cartridge to rotate one hundred and eighty degrees at a time.

[0007] Preferably, mounting rings are coaxially installed at both ends of the filter cartridge, and the filter cartridge is rotatably installed on the shell through the mounting rings. A bevel gear ring is coaxially installed on the outside of one of the mounting rings, and the rotating shaft of the first rotary driver is vertically arranged. A bevel gear is coaxially installed on the rotating shaft of the first rotary driver, and the bevel gear is meshingly connected with the bevel gear ring.

[0008] Preferably, the shell is provided with head seats at both ends of the filter cartridge, there is a certain distance between the head seat and the two ends of the filter cartridge, a screw is rotatably mounted on the head seat, the axis of the screw is in the same straight line with the axis of the filter cartridge, the screw is rotatably mounted on the head seat through bearing seats at both ends, and a second rotating driver for driving the screw to rotate around its own axis is fixedly mounted on the head seat; a limiting sleeve is provided at the axis of the inner scraper, a swivel is coaxially mounted in the limiting sleeve, a thread is provided on the inner wall of the swivel, and the swivel is spirally mounted on the screw through the thread; the two head seats are connected by a plurality of guide rods, the guide rods are arranged parallel to the screw, and the inner scraper is sleeved on the guide rods through a plurality of guide holes.

[0009] Preferably, the mounting ring is provided with a limiting ring surrounding the inner wall of the mounting ring, and the inner diameter of the limiting ring is smaller than the inner diameter of the filter cartridge.

[0010] Preferably, two sealing plates are sleeved on the guide rod of the head seat, and the sealing plates are respectively located at the two ends of the filter cartridge. A spring is sleeved on the guide rod, and the spring elastically connects the head seat and the sealing plate. The elastic force of the spring can push the sealing plate to fit the outer sides of the limiting rings at both ends of the filter cartridge; a number of push rods are provided on both sides of the inner scraper, and the push rods extend along the axial direction of the filter cartridge. When the inner scraper moves to fit the limiting ring on one side, the push rod pushes the sealing plate to compress the spring to release the end opening of the filter cartridge.

[0011] Preferably, an opening connected to the outside of the shell is provided at the bottom of the sewage discharge channel, and a first collecting box is provided outside the shell, and the bottom opening of the sewage discharge channel is connected to the first collecting box; a second collecting box is provided below the openings at both ends of the filter cylinder of the shell, and the bottom of the second collecting box is inclined, and the lower end of the bottom of the second collecting box is provided with an opening connected to the first collecting box.

[0012] Preferably, a sealing ring is installed on the side of the sealing plate facing the mounting ring, and the sealing ring fits the mounting ring and the inner wall of the limiting ring.

[0013] Preferably, the sealing plate is provided with a mounting groove surrounding the circumference of the sealing plate, and a plurality of balls are installed in the mounting groove. The surfaces of the balls protrude from the circumference of the sealing plate, and when the sealing ring is fitted with the limiting ring, the balls are fitted with the inner wall of the mounting ring.

[0014] Preferably, a hinge rod extending horizontally along the axial direction of the filter cartridge is provided on the side of the top of the sewage discharge channel away from the filter cartridge, the top of the sewage baffle plate is hingedly installed on the hinge rod, and a limiting slide rail is provided on the lower side of the sewage baffle plate, the limiting slide rail is arranged perpendicular to the hinge rod, a slider is slidably installed in the limiting slide rail, a hinge head is arranged on the slider, a linear drive is provided on the shell, the working end of the linear drive is arranged to move in the horizontal direction perpendicular to the hinge rod, and the working end of the linear drive is hingedly connected to the hinge head of the slider; a protruding limiting column is provided on the side wall of the sewage discharge channel, and when the sewage baffle plate is flipped to the upper side to engage with the limiting column, the bottom end of the sewage baffle plate engages with the outer surface of the filter cartridge.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the present invention increases the filtering path and time by setting a filter cartridge, and water passes through the filter cartridge from top to bottom, so that the filtering effect is better. The first rotary driver drives the filter cartridge to rotate reciprocatingly, and cooperates with the dirt baffle plate and the sewage discharge channel to automatically clean the sludge attached to the outer wall of the filter cartridge, thereby avoiding long-term attachment of sludge to affect the filtering effect, and no frequent manual cleaning is required, thus saving manpower.

[0016] Secondly, the filter cartridge of the present invention is provided with a first filter hole and a second filter hole of different apertures, and the two holes each occupy half of the area. The filter cartridge is rotated 180 degrees each time to achieve graded filtration, which can more effectively intercept impurities of different volumes. The inner scraper moves back and forth along the axis of the filter cartridge to clean the inner wall, further ensuring the filtering performance of the filter cartridge, preventing impurities from accumulating on the inner wall, allowing the filter cartridge to always maintain a good filtering state, and continuously and stably improving the drainage efficiency.

[0017] Thirdly, the present invention uses a design in which a spring pushes the sealing plate to fit the outer side of the limit ring. This can reliably seal the openings at both ends of the filter cartridge when the device is operating normally, thereby preventing filtered water from leaking from both ends, ensuring the uniqueness of the drainage path, and improving the waterproof performance of the device. The interaction between the push rod and the sealing plate when the inner scraper moves can realize the automatic opening and closing of the filter cartridge opening during cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of a drainage box of a waterproof drainage device used in water conservancy construction; Figure 2 It is a side view of a drainage box of a waterproof drainage device used in water conservancy construction; Figure 3 yes Figure 2 Cross-sectional view at AA of FIG. Figure 4 yes Figure 3 A partial enlarged view of point B; Figure 5 It is a front view of a drainage box of a waterproof drainage device used in water conservancy construction; Figure 6 yes Figure 5 A cross-sectional view of the section at CC; Figure 7 yes Figure 6 A partial enlarged view of point D; Figure 8 yes Figure 6 A three-dimensional cross-sectional view of Fig. 9 yes Figure 8 A local enlarged view of point E; Fig.10 yes Figure 8 A partial enlarged view of point F; Fig.11 The present invention is a three-dimensional structural exploded diagram of a drainage box of a waterproof drainage device used in water conservancy construction.

[0019] The numbers in the figure are: 1. shell; 11. water inlet; 12. drain outlet; 13. sewage discharge channel; 131. hinged rod; 132. limit column; 14. head seat; 141. guide rod; 142. blocking plate; 143. spring; 144. sealing ring; 145. mounting groove; 146. ball; 15. screw; 151. bearing seat; 152. second rotary drive; 16. first collecting box; 17. second collecting box; 2. filter cartridge; 21. first rotary drive; 211. bevel gear; 22. first filter hole; 23. second filter hole; 24. mounting ring; 241. bevel gear ring; 242. limit ring; 3. dirt baffle; 31. limit slide rail; 32. slider; 33. hinge head; 34. linear drive; 4. inner scraper; 41. limit sleeve; 42. swivel; 421. thread; 43. push rod. DETAILED DESCRIPTION

[0020] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Reference Figures 1 to 11 : A waterproof drainage device for water conservancy construction includes a drainage box, which includes a shell 1 and a filter cartridge 2 installed in the shell 1. The shell 1 is provided with a water inlet 11 above the filter cartridge 2, and a drainage outlet 12 below the filter cartridge 2. The axis of the filter cartridge 2 is horizontally arranged, and water entering the water inlet 11 flows from top to bottom through the filter cartridge 2 to the drainage outlet 12; the shell 1 is provided with a first rotating driver 21 that drives the filter cartridge 2 to rotate around its own axis, and the inside of the shell 1 is provided with a first rotating driver 21 that drives the filter cartridge 2 to rotate around its own axis. Sewage channels 13 are arranged on both sides of the filter cartridge 2, and a dirt baffle plate 3 is hingedly installed on the top of the sewage channel 13. When the bottom free end of the dirt baffle plate 3 is in contact with the outer wall of the filter cartridge 2, the upper opening of the sewage channel 13 is blocked. When the dirt baffle plate 3 is rotated to release the top opening of the sewage channel 13, the sludge blocked by the dirt baffle plate 3 enters the sewage channel 13; an inner scraper 4 is coaxially arranged inside the filter cartridge 2, and the circumference of the inner scraper 4 is in contact with the inner wall of the filter cartridge 2. The inner scraper 4 can reciprocate along the axis of the filter cartridge 2 to clean the inner wall of the filter cartridge 2.

[0022] When the waterproof drainage device of the present invention is in use, water pumped by the water pump enters the housing 1 from the water inlet 11 and passes through the filter cartridge 2 arranged horizontally with its axis from top to bottom. In this process, the filter cartridge 2 filters the sewage, and the filtered water is discharged from the drain port 12 at the bottom. The first rotary driver 21 drives the filter cartridge 2 to rotate forward and reverse around its own axis. When the filter cartridge 2 rotates, the bottom free end of the dirt baffle 3 fits against the outer wall of the filter cartridge 2 to block the upper opening of the drainage channel 13. At this time, the dirt baffle 3 will block the sludge from entering the drainage channel 13. As the filter cartridge 2 rotates, the dirt baffle 3 scrapes off the sludge on the surface of the filter cartridge 2 to prevent the sludge from blocking the filter cartridge 2 and affecting the drainage efficiency. After the dirt baffle 3 blocks the sludge for a period of time, the dirt baffle 3 will rotate and separate from the surface of the filter cartridge 2, releasing the top opening of the drainage channel 13. The sludge enters the drainage channel 13 along the inclined surface of the dirt baffle 3 and the rotation of the filter cartridge 2 for collection. Then the dirt baffle 3 is reset, and the first rotary driver 21 drives the filter cartridge 2 to rotate in the opposite direction, so that the part of the filter cartridge 2 that has been cleaned of sludge moves again to the bottom of the water inlet 11 for filtering. The inner scraper 4 arranged in the filter cartridge 2 can reciprocate along its axis in the filter cartridge 2, and its circumference fits against the inner wall of the filter cartridge 2 to clean the inner wall of the filter cartridge 2 to prevent impurities from accumulating on the inner wall and affecting the filtering effect. In this embodiment, by setting up a filter cartridge 2, and allowing water to pass through the filter cartridge 2 from top to bottom, the filtering path and time are increased, so that the filtering effect is better, the possibility of drainage blockage can be effectively reduced, and work efficiency is improved. The first rotary driver 21 drives the filter cartridge 2 to rotate back and forth, and cooperates with the dirt baffle 3 and the sewage discharge channel 13 to automatically clean the sludge attached to the outer wall of the filter cartridge 2, thereby preventing the long-term adhesion of the sludge from affecting the filtering effect, and no frequent manual cleaning is required, saving manpower. The inner scraper 4 reciprocates along the axis of the filter cartridge 2 to clean the inner wall, further ensuring the filtering performance of the filter cartridge 2, preventing impurities from accumulating on the inner wall, and allowing the filter cartridge 2 to always maintain a good filtering state, continuously and stably improving the drainage efficiency, and overcoming the problems of poor water filtering effect and easy blockage at the drainage point of traditional devices.

[0023] In order to prevent some small impurities from passing through the filter cartridge 2 and entering the drain port 12, the following features are specifically provided: A side of the filter cartridge 2 close to the water inlet 11 is provided with first filter holes 22 distributed at equal intervals, and a side of the filter cartridge 2 close to the drain outlet 12 is provided with second filter holes 23 distributed at equal intervals, the aperture of the second filter holes 23 is smaller than the aperture of the first filter holes 22; the first filter holes 22 and the second filter holes 23 each occupy one half of the overall area of ​​the filter cartridge 2, and the first rotary driver 21 can drive the filter cartridge 2 to rotate one hundred and eighty degrees at a time.

[0024] In this embodiment, the filter cartridge 2 is provided with first filter holes 22 with equal spacing on the side close to the water inlet 11, and second filter holes 23 with equal spacing and smaller aperture than the first filter holes 22 are provided on the side close to the drain outlet 12. In this way, during the rotation of the filter cartridge 2, the sewage first passes through the first filter holes 22 for preliminary filtration, and then passes through the second filter holes 23 for secondary filtration, further intercepting small-volume impurities and preventing them from entering the drain outlet 12. Since the first filter holes 22 and the second filter holes 23 each occupy one-half of the overall area of ​​the filter cartridge 2, it is ensured that the sewage filtered by the first filter holes 22 can also be filtered by the second filter holes 23 after falling. Compared with the conventional waterproof drainage device for water conservancy project construction, this embodiment realizes graded filtration by providing the first filter holes 22 and the second filter holes 23 with different apertures on the filter cartridge 2, and making them each occupy half of the area. With the filter cartridge 2 rotating 180 degrees each time, it can more effectively intercept impurities of different volumes, greatly reducing the possibility of small-volume impurities entering the drain outlet 12 through the filter cartridge 2, and significantly improving the filtering effect.

[0025] In order to realize the rotation of the filter cartridge 2 around its own axis, the following features are specifically provided: Mounting rings 24 are coaxially installed at both ends of the filter cartridge 2, and the filter cartridge 2 is rotatably installed on the housing 1 through the mounting rings 24. A bevel gear ring 241 is coaxially installed on the outside of one of the mounting rings 24. The rotating shaft of the first rotary driver 21 is vertically arranged, and a bevel gear 211 is coaxially installed on the rotating shaft of the first rotary driver 21. The bevel gear 211 is meshingly connected with the bevel gear ring 241.

[0026] The first rotary driver 21 in this embodiment can be a servo motor, etc. When the first rotary driver 21 is started, its vertically arranged rotary shaft starts to rotate. Since a bevel gear 211 is coaxially mounted on the rotary shaft, and a bevel gear ring 241 meshing therewith is coaxially mounted on the outside of the mounting ring 24 at one end of the filter cartridge 2, power is transmitted to the mounting ring 24 through meshing transmission with the bevel gear ring 241 as the bevel gear 211 rotates. The mounting ring 24 drives the filter cartridge 2 to rotate around its own axis. Because the filter cartridge 2 is rotatably mounted on the housing 1 through the mounting rings 24 at both ends, it can stably realize the rotational motion around the axis under the driving of power, thereby completing the rotation function required by the filter cartridge 2 in sewage filtration, sludge cleaning and other links.

[0027] In order to achieve the purpose of reciprocating movement of the inner scraper 4 in the filter cartridge 2 to clean the inner wall of the filter cartridge 2, the following features are specifically provided: The shell 1 is provided with head seats 14 at both ends of the filter cartridge 2, and there is a certain distance between the head seats 14 and the two ends of the filter cartridge 2. A screw 15 is rotatably installed on the head seats 14, and the axis of the screw 15 is in the same straight line as the axis of the filter cartridge 2. The screw 15 is rotatably installed on the head seats 14 through bearing seats 151 at both ends, and a second rotary driver 152 for driving the screw 15 to rotate around its own axis is fixedly installed on the head seats 14; a limit sleeve 41 is provided at the axis of the inner scraper 4, and a swivel 42 is coaxially installed in the limit sleeve 41, and a thread 421 is provided on the inner wall of the swivel 42, and the swivel 42 is spirally installed on the screw 15 through the thread 421; the two head seats 14 are connected by a plurality of guide rods 141, and the guide rods 141 are arranged parallel to the screw 15, and the inner scraper 4 is sleeved on the guide rods 141 through a plurality of guide holes.

[0028] The second rotary driver 152 in this embodiment can be a servo motor, etc. The second rotary driver 152 is fixedly mounted on the head seat 14. When the second rotary driver 152 is started, it drives the screw 15 to rotate around its own axis. The screw 15 is rotatably mounted on the head seat 14 through the bearing seats 151 at both ends, which ensures the stability of rotation. A swivel 42 is coaxially mounted in the limiting sleeve 41 at the axis of the inner scraper 4, and the thread 421 on the inner wall of the swivel 42 cooperates with the screw 15. Due to the rotation of the screw 15, the swivel 42 moves along the axis direction of the screw 15 under the action of the thread 421. Because the inner scraper 4 is sleeved on a guide rod 141 parallel to the screw 15 through a plurality of guide holes, and the guide rod 141 connects the two head seats 14, the inner scraper 4 can only make reciprocating linear motion along the direction of the guide rod 141 under the drive of the swivel 42, thereby realizing the precise control of the reciprocating movement of the inner scraper 4 in the filter cylinder 2 along the axis direction. When the inner scraper 4 moves back and forth along the axis of the filter cartridge 2, the circumference of the inner scraper 4 always fits the inner wall of the filter cartridge 2, thereby continuously cleaning the inner wall of the filter cartridge 2 to prevent impurities from accumulating on the inner wall. Since there is a certain distance between the head seat 14 and the two ends of the filter cartridge 2, the inner scraper 4 can push the impurities out through the openings at the two ends of the filter cartridge 2.

[0029] In order to prevent the inner scraper 4 from moving away from the filter cartridge 2, the following features are specifically provided: A limiting ring 242 is disposed on the mounting ring 24 and surrounds the inner wall of the mounting ring 24 . The inner diameter of the limiting ring 242 is smaller than the inner diameter of the filter cartridge 2 .

[0030] In this embodiment, when the inner scraper 4 moves back and forth in the filter cartridge 2 along the guide rod 141 under the drive of the screw 15, since the mounting ring 24 is provided with a stop ring 242 surrounding the inner wall of the mounting ring 24, and the inner diameter of the stop ring 242 is smaller than the inner diameter of the filter cartridge 2, when the inner scraper 4 moves toward the end of the filter cartridge 2, once it touches the stop ring 242, the stop ring 242 will block the inner scraper 4 from continuing to move outward, thereby preventing the inner scraper 4 from detaching from the filter cartridge 2, and ensuring that the inner scraper 4 is always inside the filter cartridge 2 for cleaning.

[0031] In order to achieve the purpose of blocking the openings at both ends of the filter cartridge 2 to prevent the filtered water from flowing out from the openings at both ends of the filter cartridge 2, the following features are specifically set: Two sealing plates 142 are sleeved on the guide rod 141 of the head seat 14, and the sealing plates 142 are respectively located at the two ends of the filter cartridge 2. A spring 143 is sleeved on the guide rod 141, and the spring 143 elastically connects the head seat 14 and the sealing plates 142. The elastic force of the spring 143 can push the sealing plates 142 to fit the outside of the limiting rings 242 at both ends of the filter cartridge 2; a plurality of push rods 43 are arranged on both sides of the inner scraper 4, and the push rods 43 extend along the axial direction of the filter cartridge 2. When the inner scraper 4 moves to fit the limiting ring 242 on one side, the push rod 43 pushes the sealing plate 142 to compress the spring 143 to release the end opening of the filter cartridge 2.

[0032] In this embodiment, when the device is filtering sewage normally, the elastic force generated by the spring 143 sleeved on the guide rod 141 pushes the blocking plate 142 to fit closely to the outer side of the limit rings 242 at both ends of the filter cartridge 2, thereby effectively blocking the openings at both ends of the filter cartridge 2, preventing the filtered water from flowing out from the openings at both ends of the filter cartridge 2, and ensuring that the sewage can only be discharged from the drain port 12 after being filtered by the filter cartridge 2. When the inner scraper 4 moves along the axis of the filter cartridge 2 under the drive of the screw 15 until it fits the bevel gear ring 241 on one side, the push rods 43 set on both sides of the inner scraper 4 will move with the inner scraper 4. At this time, the push rods 43 will push the corresponding blocking plate 142, so that the blocking plate 142 overcomes the elastic force of the spring 143, moves along the guide rod 141 toward the head seat 14, and then releases the top opening at one end of the filter cartridge 2. In this way, when cleaning impurities on the inner wall of the filter cartridge 2, the impurities can be discharged from the opened top opening, which is convenient for cleaning. After cleaning is completed, the inner scraper 4 moves in the opposite direction, the push rod 43 separates from the blocking plate 142, and the elastic force of the spring 143 resets the blocking plate 142 to re-block the opening of the filter cartridge 2. In this embodiment, the spring 143 pushes the blocking plate 142 to fit the outer side of the limit ring 242, so that when the device is operating normally, the openings at both ends of the filter cartridge 2 can be reliably blocked to prevent the filtered water from leaking from both ends, thereby ensuring the uniqueness of the drainage path and improving the waterproof performance of the device. The interaction between the push rod 43 and the blocking plate 142 when the inner scraper 4 moves is used to realize the automatic opening and closing of the opening of the filter cartridge 2 during cleaning. Without the need for an additional complex control mechanism, the cleaning process can be made smoother, manual intervention can be reduced, and cleaning efficiency can be improved.

[0033] In order to uniformly collect and process the discharged sludge impurities, the following features are specifically set: An opening connected to the outside of the shell body 1 is provided at the bottom of the sewage channel 13, and a first collecting box 16 is provided on the outside of the shell body 1. The bottom opening of the sewage channel 13 is connected to the first collecting box 16; a second collecting box 17 is provided below the openings at both ends of the filter cartridge 2 of the shell body 1, and the bottom of the second collecting box 17 is inclined, and the lower end of the bottom of the second collecting box 17 is provided with an opening connected to the first collecting box 16.

[0034] In this embodiment, when the dirt baffle plate 3 rotates to release the top opening of the sewage channel 13, the sludge enters the sewage channel 13 along with the inclined surface of the dirt baffle plate 3 and the rotation of the filter cartridge 2. Since the bottom of the sewage channel 13 is provided with an opening connected to the outside of the housing 1, and the opening is connected to the first collection box 16, the sludge falls directly into the first collection box 16 along the bottom opening of the sewage channel 13 for collection. When the openings at both ends of the filter cartridge 2 are opened by the plugging plate 142 pushed by the push rod 43, the impurities cleaned from the inner wall of the filter cartridge 2 will fall from the openings at both ends. The impurities will fall into the second collection box 17 set below the openings at both ends of the filter cartridge 2. Because the bottom of the second collection box 17 is inclined, and the lower end of the bottom is provided with an opening connected to the first collection box 16, the impurities falling into the second collection box 17 will flow into the first collection box 16 along the inclined bottom through the connecting opening, and merge with the sludge collected from the sewage channel 13 to achieve unified collection.

[0035] In order to ensure the sealing effect of the blocking plate 142 on both ends of the filter cartridge 2, the following features are specifically set: A sealing ring 144 is installed on one side of the blocking plate 142 facing the mounting ring 24 , and the sealing ring 144 fits against the inner walls of the mounting ring 24 and the limiting ring 242 .

[0036] In this embodiment, when the blocking plate 142 is tightly attached to the outer side of the limiting rings 242 at both ends of the filter cartridge 2, the sealing ring 144 installed on the side of the blocking plate 142 facing the mounting ring 24 will undergo a certain degree of elastic deformation when the blocking plate 142 contacts the limiting ring 242 and the mounting ring 24. The sealing ring 144 fills the small gap that may exist between the blocking plate 142 and the mounting ring 24 and the inner wall of the limiting ring 242 by virtue of its own elasticity, thereby forming a tight sealing structure, effectively preventing the filtered water from flowing out from the openings at both ends of the filter cartridge 2.

[0037] Since the blocking plate 142 is mounted on the guide rod 141 and cannot rotate, in order to prevent the filter cartridge 2 from generating a large amount of friction with the side wall of the blocking plate 142 when rotating, the following features are specifically provided: The sealing plate 142 is provided with a mounting groove 145 surrounding the circumference of the sealing plate 142 , and a plurality of balls 146 are installed in the mounting groove 145 . The surfaces of the balls 146 protrude from the circumference of the sealing plate 142 . When the sealing ring 144 is in contact with the limiting ring 242 , the balls 146 are in contact with the inner wall of the mounting ring 24 .

[0038] In this embodiment, when the blocking plate 142 contacts the mounting ring 24 of the filter cartridge 2, the surface of the ball 146 protrudes from the circumference of the spring 143 and fits against the inner wall of the mounting ring 24. Since the ball 146 can roll, when the filter cartridge 2 rotates, the ball 146 will roll against the inner wall of the mounting ring 24, instead of generating sliding friction with the side wall of the mounting ring 24 like an ordinary blocking plate, thereby effectively reducing the friction between the filter cartridge 2 and the blocking plate 142 during the rotation of the filter cartridge 2.

[0039] In order to realize the flipping of the dirt baffle 3, the following features are specifically set: A hinge rod 131 extending horizontally along the axial direction of the filter cartridge 2 is provided on the side of the top of the sewage discharge channel 13 away from the filter cartridge 2, the top of the sewage baffle plate 3 is hingedly installed on the hinge rod 131, and a limiting slide rail 31 is provided on the lower side of the sewage baffle plate 3, the limiting slide rail 31 is arranged perpendicular to the hinge rod 131, a slider 32 is slidably installed in the limiting slide rail 31, and a hinge head 33 is arranged on the slider 32, and a linear drive 34 is provided on the shell 1, and the working end of the linear drive 34 is arranged to move in the horizontal direction perpendicular to the hinge rod 131, and the working end of the linear drive 34 is hingedly connected to the hinge head 33 of the slider 32; a protruding limiting column 132 is provided on the side wall of the sewage discharge channel 13, and when the sewage baffle plate 3 is flipped to the upper side to fit the limiting column 132, the bottom end of the sewage baffle plate 3 fits the outer surface of the filter cartridge 2.

[0040] In this embodiment, the top end of the dirt baffle plate 3 is hingedly mounted on the hinge rod 131 at the top end of the sewage discharge channel 13, and the slider 32 in the lower limiting slide rail 31 is in the initial position. The bottom end of the dirt baffle plate 3 is in contact with the outer surface of the filter cartridge 2, and the dirt baffle plate 3 is flipped to the upper side to be in contact with the limiting column 132 of the side wall of the sewage discharge channel 13. At this time, the dirt baffle plate 3 is in a state of blocking the upper opening of the sewage discharge channel 13, preventing sludge from entering the sewage discharge channel 13. When it is necessary to discharge sewage from the filter cartridge 2, the linear drive 34 is started. The linear drive 34 can be a cylinder or an electric push rod, etc., and its working end moves in a horizontal direction perpendicular to the hinge rod 131. Since the working end of the linear drive 34 is hingedly connected to the hinge joint 33 of the slider 32, the movement of the working end will drive the slider 32 to slide in the limiting slide rail 31. The sliding of the slider 32 causes the dirt baffle plate 3 to rotate around the hinge rod 131, thereby separating the dirt baffle plate 3 from the outer surface of the filter cylinder 2, opening the upper opening of the sewage discharge channel 13, and allowing the sludge blocked by the dirt baffle plate 3 to enter the sewage discharge channel 13. After the sewage discharge is completed, the working end of the linear drive 34 moves in the opposite direction, driving the slider 32 to slide in the opposite direction, so that the dirt baffle plate 3 returns to the initial state and blocks the upper opening of the sewage discharge channel 13. In this embodiment, the flipping angle and speed of the dirt baffle plate 3 can be accurately controlled through the cooperation of the linear drive 34, the slider 32 and the limiting slide rail 31. The linear drive 34 can accurately adjust the moving distance and speed of the working end as needed, and then accurately control the flipping action of the dirt baffle plate 3, so that the dirt baffle plate 3 can open and close the sewage discharge channel 13 at the appropriate time, ensuring that the sewage discharge operation of the device is more orderly and efficient.

[0041] Working principle: When in use, water pumped by the water pump enters the housing 1 from the water inlet 11 and passes through the filter cartridge 2 arranged horizontally with its axis from top to bottom. In this process, the filter cartridge 2 filters the water, and the filtered water is discharged to the drain pipe from the drain port 12 at the bottom. The first rotary driver 21 drives the filter cartridge 2 to rotate back and forth around its own axis. When the filter cartridge 2 rotates, the bottom free end of the dirt baffle plate 3 fits against the outer wall of the filter cartridge 2 to block the upper opening of the sewage discharge channel 13. At this time, the dirt baffle plate 3 will block the sludge from entering the sewage discharge channel 13. As the filter cartridge 2 rotates, the dirt baffle plate 3 scrapes off the sludge on the surface of the filter cartridge 2. After the dirt baffle plate 3 blocks the sludge for a period of time, the dirt baffle plate 3 will rotate and separate from the surface of the filter cartridge 2, releasing the top opening of the sewage discharge channel 13. The sludge enters the sewage discharge channel 13 along the inclined surface of the dirt baffle plate 3 and the rotation of the filter cartridge 2 for collection. Then the dirt baffle plate 3 is reset, and the first rotary driver 21 drives the filter cartridge 2 to rotate in the opposite direction, so that the part of the filter cartridge 2 that has been cleaned of sludge moves again to the bottom of the water inlet 11 for filtering. The inner scraper 4 arranged in the filter cartridge 2 can reciprocate along its axis in the filter cartridge 2, and its circumference fits against the inner wall of the filter cartridge 2 to clean the inner wall of the filter cartridge 2.

[0042] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A waterproof drainage device for water conservancy construction, comprising a drainage box, the drainage box comprising a housing (1), and a filter cartridge (2) installed in the housing (1), the housing (1) being provided with a water inlet (11) located above the filter cartridge (2), and the housing (1) being provided with a drainage outlet (12) located below the filter cartridge (2), characterized in that: The axis of the filter cartridge (2) is arranged horizontally, and water entering the water inlet (11) flows from top to bottom through the filter cartridge (2) toward the water outlet (12); The housing (1) is provided with a first rotating driver (21) for driving the filter cartridge (2) to rotate around its own axis. A sewage discharge channel (13) is provided on both sides of the filter cartridge (2) inside the housing (1). A sewage baffle plate (3) is hingedly mounted on the top of the sewage discharge channel (13). When the bottom free end of the sewage baffle plate (3) is in contact with the outer wall of the filter cartridge (2), the upper opening of the sewage discharge channel (13) is blocked. When the sewage baffle plate (3) is rotated to release the top opening of the sewage discharge channel (13), the sludge blocked by the sewage baffle plate (3) enters the sewage discharge channel (13). An inner scraper (4) is coaxially arranged inside the filter cartridge (2), the circumference of the inner scraper (4) being in contact with the inner wall of the filter cartridge (2), and the inner scraper (4) being capable of reciprocating along the axis of the filter cartridge (2) to clean the inner wall of the filter cartridge (2).

2. A waterproof drainage device for water conservancy construction according to claim 1, characterized in that: The filter cartridge (2) is provided with first filter holes (22) distributed at equal intervals on one side close to the water inlet (11), and the filter cartridge (2) is provided with second filter holes (23) distributed at equal intervals on one side close to the water outlet (12), wherein the aperture of the second filter holes (23) is smaller than the aperture of the first filter holes (22); The first filter hole (22) and the second filter hole (23) each occupy one half of the entire area of ​​the filter cartridge (2).

3. A waterproof drainage device for water conservancy construction according to claim 1, characterized in that: Mounting rings (24) are coaxially mounted on both ends of the filter cartridge (2); the filter cartridge (2) is rotatably mounted on the housing (1) via the mounting rings (24); a bevel gear ring (241) is coaxially mounted on the outside of one of the mounting rings (24); the rotating shaft of the first rotating driver (21) is vertically arranged; a bevel gear (211) is coaxially mounted on the rotating shaft of the first rotating driver (21); and the bevel gear (211) is meshingly connected with the bevel gear ring (241).

4. A waterproof drainage device for water conservancy construction according to claim 3, characterized in that: The housing (1) is provided with head seats (14) at both ends of the filter cartridge (2), a certain distance being provided between the head seat (14) and the two ends of the filter cartridge (2), a screw rod (15) being rotatably mounted on the head seat (14), the axis of the screw rod (15) being on the same straight line as the axis of the filter cartridge (2), the screw rod (15) being rotatably mounted on the head seat (14) via bearing seats (151) at both ends, and a second rotary driver (152) for driving the screw rod (15) to rotate around its own axis is fixedly mounted on the head seat (14); A limiting sleeve (41) is provided at the axis of the inner scraper (4), a rotating ring (42) is coaxially mounted inside the limiting sleeve (41), a thread (421) is provided on the inner wall of the rotating ring (42), and the rotating ring (42) is spirally mounted on the screw rod (15) via the thread (421); The two head seats (14) are connected via a plurality of guide rods (141), the guide rods (141) are arranged parallel to the screw rods (15), and the inner scraper (4) is sleeved on the guide rods (141) via a plurality of guide holes.

5. A waterproof drainage device for water conservancy construction according to claim 4, characterized in that: The mounting ring (24) is provided with a limiting ring (242) surrounding the inner wall of the mounting ring (24); the inner diameter of the limiting ring (242) is smaller than the inner diameter of the filter cartridge (2).

6. A waterproof drainage device for water conservancy construction according to claim 5, characterized in that: Two blocking plates (142) are sleeved on the guide rod (141) of the head seat (14), and the blocking plates (142) are respectively located at the two ends of the filter cartridge (2). A spring (143) is sleeved on the guide rod (141), and the spring (143) elastically connects the head seat (14) and the blocking plates (142). The elastic force of the spring (143) can push the blocking plates (142) to fit the outside of the limit rings (242) at the two ends of the filter cartridge (2). A plurality of push rods (43) are provided on both sides of the inner scraper disc (4), and the push rods (43) extend along the axis direction of the filter cartridge (2). When the inner scraper disc (4) moves to abut against a limiting ring (242) on one side, the push rods (43) push the blocking plate (142) to compress the spring (143) and release the end opening of the filter cartridge (2).

7. A waterproof drainage device for water conservancy construction according to claim 6, characterized in that: The bottom of the sewage discharge channel (13) is provided with an opening communicating with the outside of the shell (1); a first collecting box (16) is provided outside the shell (1); and the bottom opening of the sewage discharge channel (13) is communicated with the inside of the first collecting box (16); The housing (1) is provided with a second collection box (17) below the openings at both ends of the filter cartridge (2); the bottom of the second collection box (17) is arranged obliquely; and an opening communicating with the first collection box (16) is provided at the lower end of the bottom of the second collection box (17).

8. The waterproof drainage device for water conservancy construction according to claim 6, characterized in that: A sealing ring (144) is installed on the side of the sealing plate (142) facing the mounting ring (24), and the sealing ring (144) fits against the inner walls of the mounting ring (24) and the limiting ring (242).

9. A waterproof drainage device for water conservancy construction according to claim 6, characterized in that: The blocking plate (142) is provided with a mounting groove (145) surrounding the circumference of the blocking plate (142), and a plurality of balls (146) are mounted in the mounting groove (145). The surfaces of the balls (146) protrude from the circumference of the blocking plate (142), and when the sealing ring (144) is in contact with the limiting ring (242), the balls (146) are in contact with the inner wall of the mounting ring (24).

10. The waterproof drainage device for water conservancy construction according to claim 1, characterized in that: A hinged rod (131) extending horizontally along the axis of the filter cartridge (2) is arranged on the side of the top of the sewage discharge channel (13) away from the filter cartridge (2); the top of the dirt baffle plate (3) is hingedly mounted on the hinged rod (131); a limit slide rail (31) is arranged on the lower side of the dirt baffle plate (3); the limit slide rail (31) is arranged perpendicular to the hinged rod (131); a slider (32) is slidably mounted in the limit slide rail (31); a hinged head (33) is arranged on the slider (32); a linear drive (34) is arranged on the housing (1); a working end of the linear drive (34) is arranged to move in a horizontal direction perpendicular to the hinged rod (131); and the working end of the linear drive (34) is hingedly connected to the hinged head (33) of the slider (32); A protruding limiting column (132) is provided on the side wall of the sewage discharge channel (13); when the sewage baffle plate (3) is turned over to abut against the limiting column (132) on the upper side, the bottom end of the sewage baffle plate (3) abuts against the outer surface of the filter cartridge (2).

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