A disassembly-free pit pumping device for clearing blockage

Abstract

This invention relates to a non-disassembly-based sump pumping device, belonging to the field of desulfurization absorption tower technology. It includes a pump and a filter cylinder assembly. The filter cylinder assembly comprises an outer filter cylinder and an inner filter cylinder rotatably fitted inside the outer filter cylinder. The inner filter cylinder has several longitudinally arranged rectangular inner filter ports on both its front and rear sides. The outer filter cylinder has several rectangular outer filter ports on its front and rear sides corresponding to the inner filter ports. A connecting cylinder is sealed and fitted through the top of the outer filter cylinder. The bottom end of the connecting cylinder extends into the outer filter cylinder and communicates with the inner filter cylinder. The top end of the connecting cylinder is connected to the pump. A pair of clamping devices for clamping the outer filter cylinder are symmetrically installed on the side of the connecting cylinder extending beyond the top of the outer filter cylinder. The filter cylinder assembly also includes a flushing device for flushing water from the inner filter ports to the outer filter ports. This invention enables the cleaning of clogged filter screens without disassembly, significantly reducing the maintenance time and cost of the sump system.

Description

Technical Field

[0001] This invention relates to a non-disassembly-removable, unblocked sump pumping device, belonging to the technical field of desulfurization absorption towers. Background Technology

[0002] The pumping system of the desulfurization absorption tower sump in a thermal power plant is used to collect and remove wastewater generated during the operation of the absorption tower. Therefore, the design and maintenance of the pumping system are crucial to ensuring the environmental compliance and safe operation of the equipment in a thermal power plant.

[0003] In the daily operation of thermal power plants, the pumping system of the desulfurization absorption tower sump needs to continuously remove wastewater to prevent water accumulation in the sump and equipment corrosion. However, due to the presence of solid particles in the wastewater, the pumping system is prone to blockage, requiring periodic shutdowns for disassembly and unblocking, which not only delays the work progress but also wastes time and effort.

[0004] A liquid level device for a thermal power plant sump, disclosed in Chinese utility model patent CN217932510U, includes a thermal power plant sump. An installation block is fixedly installed within the sump. A bottom groove is formed at the bottom of the installation block. Installation holes are formed on both sides of the bottom groove. A filter plate is fixedly installed within each installation hole. A connecting groove is formed on the inner top wall of the bottom groove. Limiting grooves are formed on both sides of the connecting groove. A limiting plate slides in contact with the two limiting grooves. A counterweight rod is fixedly installed at the bottom of the limiting plate. A float plate is fixedly installed at the bottom end of the counterweight rod. Conductive sheets are provided on the top of the limiting plate and the inner top wall of the connecting groove. A water pump and a timing controller are fixedly installed on the side of the installation block. A pumping pipe and a drain pipe are connected to the water pump.

[0005] In the above example, the water pump is directly connected to the pumping pipe and the drain pipe, without taking into account the presence of solid particles in the wastewater. This can easily lead to blockage of the pumping pipe, requiring disassembly and repair, which is time-consuming and labor-intensive. Therefore, an improvement is urgently needed. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the present invention designs a non-disassembly-removable sump pumping device, which can clean the filter screen blockage without disassembly, greatly shortening the maintenance time and cost of the sump system.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A non-disassembly-required sump pumping device includes a water pump and a filter cylinder assembly. The filter cylinder assembly includes an outer filter cylinder and an inner filter cylinder rotatably fitted inside the outer filter cylinder. The inner filter cylinder has several longitudinally arranged rectangular inner filter ports on both its front and rear sides. The outer filter cylinder has several rectangular outer filter ports on both its front and rear sides corresponding to the inner filter ports. A connecting cylinder is sealed and fitted through the top of the outer filter cylinder. The bottom end of the connecting cylinder extends into the outer filter cylinder and communicates with the inner filter cylinder. The top end of the connecting cylinder is connected to the water pump. A pair of clamping devices for clamping the outer filter cylinder are symmetrically installed on the side of the connecting cylinder extending beyond the top of the outer filter cylinder. The filter cylinder assembly also includes a flushing device for flushing water from the inner filter ports to the outer filter ports.

[0009] Furthermore, the clamping device includes a hinge seat fixed on the adapter cylinder, a clamping rod hinged to the hinge seat by a torsion spring, and a clamping ball fixed to the free end of the clamping rod. The outer filter cylinder has several locking interfaces evenly opened along the circumference on its side, and the clamping ball is engaged with the locking interfaces.

[0010] Furthermore, the flushing device includes an outer sleeve and an inner sleeve. The top of the outer sleeve extends from bottom to top through the outer filter cylinder and the inner filter cylinder and then into the interior of the inner filter cylinder. The side of the outer sleeve located inside the inner filter cylinder has several outlet water ports corresponding to each inner filter port. The inner sleeve is slidably fitted inside the outer sleeve, and the side of the inner sleeve has several inner outlet water ports corresponding to each outlet water port. The top of the inner sleeve is connected to the top of the inner sleeve via a spring assembly, and the bottom of the inner sleeve is connected to flushing water via a hose.

[0011] Furthermore, the spring assembly includes a fixed frame fixed to the top of the inner sleeve. The front end of the fixed frame has a rectangular mounting groove. A slider is slidably mounted in the mounting groove. The front end of the slider has a closed groove with a closed loop. A guide block is wrapped in the middle of the closed groove. The bottom end of the guide block is recessed and has an upper protrusion. The bottom end of the closed groove is convex and has a lower protrusion. The upper and lower protrusions are offset. A connecting rod is fixedly connected to the bottom end of the slider. The bottom end of the connecting rod slides through the fixed frame and is fixedly connected to the top of the inner sleeve. A connecting spring is provided between the top of the slider and the top of the inner sleeve. A hinge rod is provided at the top of the mounting groove and hinged to the front end of the fixed frame. A sliding retainer is vertically fixedly sleeved on the free end of the hinge rod. The free end of the sliding retainer is slidably engaged in the closed groove. When the sliding retainer is at the top of the closed groove, the inner outlet and the outer outlet are offset. When the sliding retainer is at the bottom of the closed groove, the inner outlet and the outer outlet coincide.

[0012] Furthermore, it also includes an intermittent adjustment mechanism for driving the outer sleeve to rotate periodically. The intermittent adjustment mechanism includes a drive assembly and a toggle assembly. The toggle assembly includes a rotating plate and an intermittent rotating plate. The intermittent rotating plate is fixedly sleeved on the outer sleeve, and four arc-shaped openings are evenly arranged circumferentially on the side of the intermittent rotating plate. A toggle groove is provided between any two adjacent arc-shaped openings, and any two adjacent toggle grooves are perpendicular to each other. The rotating plate is driven to rotate by the drive assembly. A clearance notch is provided on the rotating plate. A toggle rod is fixed at the center of the top of the rotating plate in the middle of the clearance notch. A toggle shaft is fixedly installed at the top of the free end of the toggle rod. During the rotation, the toggle shaft sequentially engages with and disengages from each toggle groove. When the toggle shaft disengages from the toggle groove, the arc-shaped openings and the arc-shaped edges of the rotating plate are coplanar.

[0013] Furthermore, the drive assembly includes a drive motor and a transmission shaft. The drive motor is fixedly mounted on one side of the water pump via a mounting bracket. The transmission shaft is vertically arranged and its top end is connected to the drive motor. The bottom end of the drive motor is fixedly connected to the center position of the rotating plate.

[0014] Furthermore, a connecting shaft is fixedly provided at the top of the slider, and the connecting spring is sleeved on the connecting shaft.

[0015] Furthermore, the inner sleeve has a sliding groove on its side, and the outer sleeve has a sliding block on its inner wall that slides and engages with the sliding groove.

[0016] Furthermore, the number of both the external and internal water outlets is five.

[0017] Furthermore, the distance by which the bottom end of the inner sleeve extends beyond the outer sleeve is at least 3 cm.

[0018] Compared with the prior art, the present invention has the following features and beneficial effects:

[0019] 1. In this invention, when the outer filter cartridge becomes clogged, high-pressure water can be flushed into the inner filter cartridge using a flushing device. The high-pressure water can flow from the inner filter port to the outer filter port, thereby clearing the clogged outer filter cartridge and preventing further clogging. Simultaneously, as the outer filter cartridge rotates, the overlapping area of ​​the inner and outer filter ports gradually increases, widening the space where the blockage occurred. Combined with the impact force of the flushing device, this effectively prevents the clogged outer filter cartridge from becoming clogged, without the need for disassembly, making it simple and efficient.

[0020] 2. In this invention, the flushing device and spring assembly are configured such that when water needs to enter the inner filter cylinder, the inner sleeve can be pushed upwards. The inner sleeve will drive the connecting rod upwards, which in turn pushes the slider upwards. As the slider moves upwards, the sliding retainer will move along the path of the closed groove. When the sliding retainer reaches the lower protrusion, the inner sleeve is released. At this time, the slider loses its thrust and falls back under the action of gravity, while the sliding retainer is just locked in the recess of the upper protrusion. At this time, the inner outlet and the outer outlet coincide, and the inner sleeve can then normally receive water. When the inner filter cylinder does not need water, an upward pushing force is applied to the inner sleeve. Due to the misalignment of the upper and lower protrusions, Therefore, when the inner sleeve moves upward, the slider also moves upward, which allows the sliding pin to abut against the inclined surface of the lower protrusion. At this time, guided by the inclined surface of the lower protrusion, the sliding pin re-engages into the side of the closed slide groove. When the inner sleeve is released again, the sliding pin returns to the top of the closed slide groove, and the inner outlet and the outer outlet return to their misaligned positions, completing one adjustment. The connecting spring can accelerate the reset and prevent accidental upward lifting of the inner sleeve, ensuring that the inner sleeve can stably block the outer outlet during filtration. This allows for good adjustment of the position of the inner sleeve, enabling water to flow from or stop flowing from the outer outlet, effectively improving the applicability of the device.

[0021] 3. In this invention, the intermittent adjustment mechanism can control the water outlet direction, enabling cleaning of the inner wall of the inner filter cylinder and flushing of the outer filter port when the outer filter cylinder is clogged. This effectively prevents continuous clogging and eliminates the need for disassembly for cleaning. Furthermore, when the outlet is aligned with the outer filter port, the outer filter cylinder can be rotated to ensure complete overlap between the inner and outer filter ports. At this point, the drive motor can rotate in both directions to allow the outlet to reciprocate within the width of the outer filter port on one side, effectively flushing various parts of the outer filter port and further resolving the clogging problem. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the filter cartridge assembly and rinsing device of the present invention after disassembly;

[0024] Figure 3 This is a schematic diagram of the main structure of the inner filter cylinder of the present invention;

[0025] Figure 4 This is a schematic diagram of the fit between the outer sleeve and the inner sleeve of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the inner sleeve of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal mating structure of the outer sleeve and inner sleeve of the present invention;

[0028] Figure 7 This is a schematic diagram of the main structure of the spring assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the installation structure of the spring assembly of the present invention;

[0030] Figure 9 This is a three-dimensional structural schematic diagram of the intermittent adjustment mechanism of the present invention.

[0031] The attached figures are labeled as follows: 100, filter cartridge assembly; 200, clamping device; 300, rinsing device; 400, water pump; 500, intermittent adjustment mechanism; 501, drive shaft; 502, mounting bracket; 503, drive motor; 1, outer filter cartridge; 2, inner filter cartridge; 201, inner filter port; 3, outer filter port; 4, adapter cartridge; 5, hinge seat; 6, clamping rod; 7, clamping ball; 9, snap-fit ​​interface; 10, outer sleeve; 11, inner sleeve; 111, sliding slot. 112. Inner outlet; 113. Connecting rod; 12. Outer outlet; 13. Fixing frame; 131. Mounting groove; 14. Slider; 141. Closed slide groove; 142. Upper protrusion; 143. Lower protrusion; 144. Guide block; 15. Hinge rod; 151. Sliding retaining shaft; 16. Connecting spring; 17. Connecting shaft; 18. Rotating plate; 181. Clearance notch; 19. Actuating rod; 20. Actuating shaft; 21. Intermittent rotating plate; 22. Arc-shaped opening; 23. Actuating groove. Detailed Implementation

[0032] The present invention will now be described in more detail with reference to the embodiments.

[0033] Example 1

[0034] Please see Figures 2 to 5 The non-disassembly unblocking pit pumping device of this embodiment includes a water pump 400 and a filter cartridge assembly 100. The water pump 400 is fixedly installed at a certain height at the top of the pit.

[0035] The filter cartridge assembly 100 includes an outer filter cartridge 1 and an inner filter cartridge 2 rotatably fitted inside the outer filter cartridge 1. The inner filter cartridge 2 has five longitudinally arranged rectangular inner filter ports 201 on both its front and rear sides. The outer filter cartridge 1 has several rectangular outer filter ports 3 at positions corresponding to the inner filter ports 201 on both its front and rear sides. That is, by rotating the outer filter cartridge 1, the outer filter cartridge 1 can rotate around the inner filter cartridge 2, thereby adjusting the overlapping area of ​​the inner filter ports 201 and the outer filter ports 3, and thus adjusting the water flow rate during filtration.

[0036] In this embodiment, during normal filtration, the inner filter port 201 and the outer filter port 3 overlap by only half their widths.

[0037] The outer filter cylinder 1 is sealed and has a connecting cylinder 4 through it. The bottom end of the connecting cylinder 4 extends into the outer filter cylinder 1 and is connected to the inner filter cylinder 2. The top end of the connecting cylinder 4 is connected to the water pump 400. After the water pump 400 is started, the wastewater is filtered through the outer filter cylinder 1, and after passing through the inner filter cylinder 2 and the connecting cylinder 4, it is pumped away by the water pump 400, thereby filtering the wastewater in the pit and returning it to the required location.

[0038] To ensure that the outer filter cylinder 1 does not rotate on its own and to ensure the positional stability of the inner filter port 201 and the outer filter port 3, a pair of clamping devices 200 for clamping the outer filter cylinder 1 are symmetrically installed on the side of the adapter cylinder 4 extending from the top of the outer filter cylinder 1.

[0039] Specifically, the clamping device 200 includes a hinge seat 5 fixed on the adapter cylinder 4, a clamping rod 6 hinged to the hinge seat 5 by a torsion spring, and a clamping ball 7 fixed to the free end of the clamping rod 6. The outer filter cylinder 1 has a number of snap-fit ​​interfaces 9 evenly distributed around its side. The clamping ball 7 snaps into the snap-fit ​​interfaces 9. Through the number of snap-fit ​​interfaces 9 evenly distributed around its side, the rotation angle of the outer filter cylinder 1 can be precisely adjusted. That is, each time the outer filter cylinder 1 is rotated, the clamping ball 7 snaps into the next snap-fit ​​interface 9. The overlapping area of ​​the inner filter port 201 and the outer filter port 3 can be precisely and stably adjusted.

[0040] In this embodiment, the filter cartridge assembly 100 also includes a flushing device 300 for flushing water from the inner filter port 201 to the outer filter port 3. That is, the flushing device 300 is located inside the inner filter cartridge 2 and is connected to high-pressure water. When the outer filter cartridge 1 becomes clogged, high-pressure water can be flushed into the inner filter cartridge 2 through the flushing device 300. The high-pressure water can flush water from the inner filter port 201 to the outer filter port 3, thereby clearing the clogged outer filter cartridge 1 and preventing it from becoming clogged again. At the same time, with the rotation of the outer filter cartridge 1, the overlapping area of ​​the inner filter port 201 and the outer filter port 3 gradually increases during the rotation of the outer filter cartridge 1, and the space at the original clogged position also widens. Combined with the impact force of the flushing device 300 flushing water outward, the clogged outer filter cartridge 1 can be effectively prevented from becoming clogged, and no disassembly is required, which is simple and efficient.

[0041] Specifically, the rinsing device 300 includes an outer sleeve 10 and an inner sleeve 11. The bottom end of the inner sleeve 11 is connected to the rinsing water via a hose. The top end of the outer sleeve 10 seals and penetrates the outer filter cylinder 1 and the inner filter cylinder 2 from bottom to top before extending into the interior of the inner filter cylinder 2.

[0042] The outer sleeve 10 is fixedly installed at the top end inside the inner filter cylinder 2, and the bottom end of the outer sleeve 10 extends out of the inner sleeve 10. The inner sleeve 11 is slidably and sealingly fitted inside the outer sleeve 10, and the bottom end of the inner sleeve 11 extends out of the outer sleeve 10 by 3cm.

[0043] In this embodiment, the outer sleeve 10 is located inside the inner filter cylinder 2 and has five outlet ports 12 on its side, each corresponding to one of the inner filter ports 201 on one side. The inner sleeve 11 is slidably fitted inside the outer sleeve 10, and the inner sleeve 11 has five inner outlet ports 112 on its side, each corresponding to one of the outlet ports 12. The outlet ports 12 and the inner outlet ports 112 can be made to overlap by adjusting the sleeve length of the inner sleeve 11.

[0044] Specifically, when water needs to be introduced into the inner filter cartridge 2, the inner sleeve 11 is pushed upwards so that the outlet 12 and the inner outlet 112 coincide, allowing water to enter normally. During filtration, water does not need to be introduced into the inner filter cartridge 2. In this case, the inner sleeve 11 is pulled downwards so that the outlet 12 and the inner outlet 112 are misaligned, thus blocking the outlet 12 through the side wall of the inner sleeve 11, thereby enabling normal filtration.

[0045] Example 2

[0046] Please see Figures 6 to 8 Based on the above embodiment 1, the top end of the inner sleeve 11 is connected to the top end of the inner sleeve 10 by a spring assembly.

[0047] The spring assembly includes a fixing frame 13 fixed inside the top of the outer sleeve 10. The front end face of the fixing frame 13 has a rectangular mounting groove 131. A slider 14 is slidably mounted in the mounting groove 131. The front end face of the slider 14 has a closed slide groove 141 with a closed loop. A guide block 144 is wrapped in the middle of the closed slide groove 141. The bottom end of the guide block 144 is recessed and has an upper protrusion 142. The bottom end of the closed slide groove 141 is raised and has a lower protrusion 143. The upper protrusion 142 and the lower protrusion 143 are staggered.

[0048] A connecting rod 113 is fixedly connected to the bottom end of the slider 14. The bottom end of the connecting rod 113 slides through the fixed frame 13 and is fixedly connected to the top end of the inner sleeve 11. A connecting spring 16 is provided between the top end of the slider 14 and the top end of the inner end of the mounting groove 131.

[0049] The top of the mounting groove 131 is provided with a hinge rod 15 that is hinged to the front end face of the fixed frame 13. The free end of the hinge rod 15 is vertically fixedly sleeved with a sliding retaining pin 151. The free end of the sliding retaining pin 151 is slidably engaged in the closed slide groove 141. When the sliding retaining pin 151 is located at the top of the closed slide groove 141, the inner outlet 112 and the outer outlet 12 are misaligned. When the sliding retaining pin 151 is located at the bottom of the closed slide groove 141, the inner outlet 112 and the outer outlet 12 overlap each other.

[0050] As can be seen from the above description, when water needs to be introduced into the inner filter cylinder 2, the inner sleeve 11 can be pushed upward. The inner sleeve 11 will drive the connecting rod 113 to push upward. When the connecting rod 113 pushes upward, it can push the slider 14 upward. When the slider 14 moves upward, the sliding pin 151 will move along the path of the closed slide groove 141. When the sliding pin 151 moves to the position of the lower protrusion 143, the inner sleeve 11 is released. At this time, the slider 14 loses its pushing force and falls back under the action of gravity. The sliding pin 151 is just stuck in the recess of the upper protrusion 142. At this time, the inner outlet 112 and the outer outlet 12 coincide, and the inner sleeve 11 can be filled with water normally.

[0051] When the inner filter cartridge 2 does not need water intake, first apply an upward pushing force to the inner sleeve 11. Due to the misalignment of the upper protrusion 142 and the lower protrusion 143, the slider 14 also moves upward when the inner sleeve 11 moves upward. This allows the sliding pin 151 to abut against the inclined surface of the lower protrusion 143. At this time, guided by the inclined surface of the lower protrusion 143, the sliding pin 151 will re-engage with the side of the closed slide groove 141. Release the inner sleeve 11 again, and the sliding pin 151 will return to the top of the closed slide groove 141. The inner outlet 112 and the outer outlet 12 will return to their misaligned positions, completing one adjustment. The connecting spring 16 can accelerate the reset and prevent accidental upward lifting of the inner sleeve 11, ensuring that the inner sleeve 11 can stably block the outer outlet 12 during filtration.

[0052] In this embodiment, the position of the inner sleeve 11 can be well adjusted by the spring assembly, so as to realize the water outlet 12 to discharge water or stop water discharge, which effectively improves the applicability of the device.

[0053] Furthermore, a connecting shaft 17 is fixedly provided at the top of the slider 14, and a connecting spring 16 is sleeved on the connecting shaft 17. The setting of the connecting shaft 17 facilitates the limiting of the connecting spring 16 and improves the stability of the device.

[0054] Furthermore, a sliding groove 111 is provided on the side of the inner sleeve 11, and a sliding block is provided on the inner wall of the outer sleeve 10 to slide and engage with the sliding groove 111, thereby improving the stability of the inner sleeve 11 during the up-and-down sliding process.

[0055] Example 3

[0056] Please see Figure 1 and Figure 9 Based on the above embodiment one or embodiment two, this embodiment also includes an intermittent adjustment mechanism 500 for driving the outer sleeve 10 to rotate periodically. The intermittent adjustment mechanism 500 includes a drive assembly and a turning assembly. The turning assembly includes a rotating plate 18 and an intermittent rotating plate 21. The intermittent rotating plate 21 is fixedly sleeved on the outer sleeve 10, and four arc-shaped openings 22 are evenly arranged on the side of the intermittent rotating plate 21 along the circumference. A turning groove 23 is provided between any two adjacent arc-shaped openings 22, and any two adjacent turning grooves 23 are arranged perpendicular to each other.

[0057] The rotating plate 18 is driven to rotate by a drive assembly. The rotating plate 18 has a clearance notch 181. A toggle rod 19 is fixed at the center of the top of the rotating plate 18 in the middle of the clearance notch 181. The toggle rod 19 divides the clearance notch 181 into two parts. A toggle shaft 20 is fixedly installed at the top of the free end of the toggle rod 19. During the rotation, the toggle shaft 20 sequentially enters and exits each toggle groove 23. When the toggle shaft 20 exits the toggle groove 23, the arc-shaped opening 22 is coplanar with the arc-shaped edge of the rotating plate 18.

[0058] The drive assembly includes a drive motor 503 and a transmission shaft 501. The drive motor 503 is fixedly mounted on one side of the water pump 400 via a mounting bracket 502. The transmission shaft 501 is vertically mounted and its top end is connected to the drive motor 503. The bottom end of the drive motor 503 is fixedly connected to the center of the rotating plate 18.

[0059] As can be seen from the above description, by starting the drive motor 503, the drive motor 503 can drive the transmission shaft 501 to rotate. The rotation of the transmission shaft 501 can drive the rotating plate 18 to rotate. The rotation of the rotating plate 18 can drive the toggle lever 19 to rotate. When the toggle lever 19 rotates, the toggle shaft 20 fixed at the top of the free end of the toggle lever 19 first engages one of the toggle slots 23 during the rotation process. For ease of description, the four toggle slots 23 are respectively called the first toggle slot 23, the second toggle slot 23, the third toggle slot 23 and the fourth toggle slot 23. The intermittent rotating plate 21 is driven to rotate through the mutual cooperation of the toggle shaft 20 and the first toggle slot 23.

[0060] As the actuating shaft 20 continues to move, it gradually exits the first actuating groove 23. During the process of the actuating shaft 20 actuating the intermittent rotating plate 21, the arc-shaped opening 22 and the arc-shaped edge of the rotating plate 18 gradually become coplanar. After the actuating shaft 20 exits the first actuating groove 23, the arc-shaped opening 22 and the arc-shaped edge of the rotating plate 18 are completely coplanar. At this time, the intermittent rotating plate 21 completes one rotation, and the rotation angle is exactly 90°. The outer sleeve 10 will also rotate 90° under the drive of the intermittent rotating plate 21, that is, the outlet 12 will also rotate 90°. At this time, the outlet 12 will be aligned with the inner wall of the inner filter cylinder 2 instead of the inner filter port 201. At this time, high-pressure water is introduced into the inner filter cylinder 2, which can rinse the inner wall of the inner filter cylinder 2, clean the impurities and dirt on the inner wall of the inner filter cylinder 2, thereby reducing the resistance of water flow and improving filtration efficiency.

[0061] As the actuating shaft 20 continues to move, it sequentially enters and exits the second, third, and fourth actuating slots 23. The intermittent rotating plate 21 rotates 90° sequentially, the outer sleeve 10 also rotates 90° sequentially, and the outlet 12 rotates 90° sequentially. Consequently, the water outlet direction changes 90° sequentially inside the inner filter cylinder 2. This not only cleans the inner wall of the inner filter cylinder 2 but also flushes the outer filter port 3 when the outer filter cylinder 1 is clogged, effectively preventing continuous clogging without disassembly for cleaning. At the same time, when the outlet 12 is aligned with the outer filter port 3, the outer filter cylinder 1 can be rotated so that the inner filter port 201 and the outer filter port 3 are completely aligned. At this time, the drive motor 503 can rotate forward and reverse to make the outlet 12 reciprocate within the width range of the outer filter port 3 on one side, thereby effectively flushing various positions of the outer filter port 3 and further solving the clogging problem of the outer filter port 3.

[0062] The working principle of this invention is as follows: When the outer filter cartridge 1 becomes clogged, high-pressure water can be flushed into the inner filter cartridge 2 through the flushing device 300. The high-pressure water can flow from the inner filter port 201 to the outer filter port 3, thereby clearing the blockage of the outer filter cartridge 1 and preventing further blockage. At the same time, with the rotation of the outer filter cartridge 1, the overlapping area of ​​the inner filter port 201 and the outer filter port 3 gradually increases during the rotation process, and the space at the original blockage location also widens. Combined with the impact force of the flushing device 300 flushing water outward, the blockage of the outer filter cartridge 1 can be effectively prevented from clogging, and no disassembly is required, making it simple and efficient.

[0063] When water needs to be introduced into the inner filter cartridge 2, the inner sleeve 11 can be pushed upward. The inner sleeve 11 will drive the connecting rod 113 to push upward. When the connecting rod 113 pushes upward, it can push the slider 14 upward. When the slider 14 moves upward, the sliding pin 151 will move along the path of the closed slide groove 141. When the sliding pin 151 moves to the position of the lower protrusion 143, the inner sleeve 11 is released. At this time, the slider 14 loses its thrust and falls back under the action of gravity. The sliding pin 151 is just stuck in the recess of the upper protrusion 142. At this time, the inner outlet 112 and the outer outlet 12 coincide, and the inner sleeve 11 can be filled with water normally.

[0064] When the inner filter cartridge 2 does not need water intake, first apply an upward pushing force to the inner sleeve 11. Due to the misalignment of the upper protrusion 142 and the lower protrusion 143, the slider 14 also moves upward when the inner sleeve 11 moves upward. This allows the sliding pin 151 to abut against the inclined surface of the lower protrusion 143. At this time, guided by the inclined surface of the lower protrusion 143, the sliding pin 151 will re-engage with the side of the closed slide groove 141. Release the inner sleeve 11 again, and the sliding pin 151 will return to the top of the closed slide groove 141. The inner outlet 112 and the outer outlet 12 will return to their misaligned positions, completing one adjustment. The connecting spring 16 can accelerate the reset and prevent accidental upward lifting of the inner sleeve 11, ensuring that the inner sleeve 11 can stably block the outer outlet 12 during filtration.

[0065] By starting the drive motor 503, the drive motor 503 can drive the transmission shaft 501 to rotate. The rotation of the transmission shaft 501 can drive the rotating plate 18 to rotate. The rotation of the rotating plate 18 can drive the toggle lever 19 to rotate. When the toggle lever 19 rotates, the toggle shaft 20 fixed at the top of the free end of the toggle lever 19 first engages one of the toggle slots 23 during the rotation process. For ease of description, the four toggle slots 23 are respectively called the first toggle slot 23, the second toggle slot 23, the third toggle slot 23 and the fourth toggle slot 23. The intermittent rotating plate 21 is driven to rotate through the mutual cooperation of the toggle shaft 20 and the first toggle slot 23.

[0066] As the actuating shaft 20 continues to move, it gradually exits the first actuating groove 23. During the process of the actuating shaft 20 actuating the intermittent rotating plate 21, the arc-shaped opening 22 and the arc-shaped edge of the rotating plate 18 gradually become coplanar. After the actuating shaft 20 exits the first actuating groove 23, the arc-shaped opening 22 and the arc-shaped edge of the rotating plate 18 are completely coplanar. At this time, the intermittent rotating plate 21 completes one rotation, and the rotation angle is exactly 90°. The outer sleeve 10 will also rotate 90° under the drive of the intermittent rotating plate 21, that is, the outlet 12 will also rotate 90°. At this time, the outlet 12 will be aligned with the inner wall of the inner filter cylinder 2 instead of the inner filter port 201. At this time, high-pressure water is introduced into the inner filter cylinder 2, which can rinse the inner wall of the inner filter cylinder 2, clean the impurities and dirt on the inner wall of the inner filter cylinder 2, thereby reducing the resistance of water flow and improving filtration efficiency.

[0067] As the actuating shaft 20 continues to move, it sequentially enters and exits the second, third, and fourth actuating slots 23. The intermittent rotating plate 21 rotates 90° sequentially, the outer sleeve 10 also rotates 90° sequentially, and the outlet 12 rotates 90° sequentially. Consequently, the water outlet direction changes 90° sequentially inside the inner filter cylinder 2. This not only cleans the inner wall of the inner filter cylinder 2 but also flushes the outer filter port 3 when the outer filter cylinder 1 is clogged, effectively preventing continuous clogging without disassembly for cleaning. At the same time, when the outlet 12 is aligned with the outer filter port 3, the outer filter cylinder 1 can be rotated so that the inner filter port 201 and the outer filter port 3 are completely aligned. At this time, the drive motor 503 can rotate forward and reverse to make the outlet 12 reciprocate within the width range of the outer filter port 3 on one side, thereby effectively flushing various positions of the outer filter port 3 and further solving the clogging problem of the outer filter port 3.

[0068] In the description of this invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0069] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A non-disassembly-free sump pumping device, comprising a water pump (400) and a filter cartridge assembly (100), characterized in that: The filter cartridge assembly (100) includes an outer filter cartridge (1) and an inner filter cartridge (2) rotatably sleeved inside the outer filter cartridge (1). The inner filter cartridge (2) has several longitudinally arranged rectangular inner filter ports (201) on both the front and rear sides. The outer filter cartridge (1) has several rectangular outer filter ports (3) at positions corresponding to the inner filter ports (201) on both the front and rear sides. The top of the outer filter cylinder (1) is sealed and through-sleeved with a transition cylinder (4). The bottom end of the transition cylinder (4) extends into the interior of the outer filter cylinder (1) and communicates with the inner filter cylinder (2). The top of the transition cylinder (4) is connected to the water pump (400). The adapter tube (4) has a pair of clamping devices (200) symmetrically installed on the side of the top end of the outer filter tube (1) for clamping the outer filter tube (1). The filter cartridge assembly (100) also includes a flushing device (300) for flushing water from the inner filter port (201) to the outer filter port (3). The flushing device (300) includes an outer sleeve (10) and an inner sleeve (11). The top of the outer sleeve (10) extends from bottom to top through the outer filter cylinder (1) and the inner filter cylinder (2) and then into the interior of the inner filter cylinder (2). The outer sleeve (10) has several outlets (12) on the side of the tube body inside the inner filter cylinder (2) that correspond one-to-one with each inner filter port (201). The inner sleeve (11) slides up and down inside the outer sleeve (10), and the inner sleeve (11) has several inner outlets (112) on the side that correspond one-to-one with each outlet (12). The top end of the inner sleeve (11) is connected to the top end of the inner sleeve (10) by a spring assembly, and the bottom end of the inner sleeve (11) is connected to flushing water through a hose. The spring assembly includes a fixed frame (13) fixed inside the top of the outer sleeve (10). The front end face of the fixed frame (13) is provided with a rectangular mounting groove (131). A slider (14) is slidably mounted in the mounting groove (131). The front end face of the slider (14) is provided with a closed sliding groove (141) with a closed loop. A guide block (144) is wrapped in the middle of the closed sliding groove (141). The bottom end of the guide block (144) is recessed upward and provided with an upper protrusion (142). The bottom end of the closed sliding groove (141) is raised upward and provided with a lower protrusion (143). The upper protrusion (142) and the lower protrusion (143) are staggered. The bottom end of the slider (14) is fixedly connected to a connecting rod (113). The bottom end of the connecting rod (113) slides through the fixed frame (13) and is fixedly connected to the top end of the inner sleeve (11). A connecting spring (16) is provided between the top end of the slider (14) and the top end inside the mounting groove (131). The top of the mounting groove (131) is provided with a hinge rod (15) that is hinged to the front end face of the fixed frame (13). The free end of the hinge rod (15) is vertically fixed with a sliding pin (151). The free end of the sliding pin (151) is slidably locked in the closed slide groove (141). When the sliding pin (151) is located at the top of the closed slide groove (141), the inner outlet (112) and the outer outlet (12) are misaligned. When the sliding pin (151) is located at the bottom of the closed slide groove (141), the inner outlet (112) and the outer outlet (12) overlap each other.

2. The non-disassembly-removable sump pumping device according to claim 1, characterized in that: The clamping device (200) includes a hinge seat (5) fixed on the adapter (4), a clamping rod (6) hinged to the hinge seat (5) by a torsion spring, and a clamping ball (7) fixed to the free end of the clamping rod (6). The outer filter cylinder (1) has several snap-fit ​​interfaces (9) evenly opened on its side along the circumference. The clamping ball (7) snaps into the snap-fit ​​interfaces (9).

3. The non-disassembly-required sump pumping device according to claim 1, characterized in that: It also includes an intermittent adjustment mechanism (500) for driving the outer tube (10) to rotate periodically. The intermittent adjustment mechanism (500) includes a drive assembly and a rotating assembly. The rotating assembly includes a rotating plate (18) and an intermittent rotating plate (21). The intermittent rotating plate (21) is fixedly sleeved on the outer tube (10). The side of the intermittent rotating plate (21) is evenly provided with four arc-shaped openings (22) along the circumference. A rotating groove (23) is provided between any two adjacent arc-shaped openings (22). Any two adjacent rotating grooves (23) are perpendicular to each other. The rotating plate (18) is driven to rotate by a drive assembly. The rotating plate (18) has a clearance notch (181). A lever (19) is fixed at the center of the top of the rotating plate (18) in the middle of the clearance notch (181). A lever (20) is fixedly installed at the top of the free end of the lever (19). During the rotation, the lever (20) sequentially enters and exits each of the rotating slots (23). When the lever (20) exits the rotating slot (23), the arc-shaped opening (22) is coplanar with the arc-shaped edge of the rotating plate (18).

4. The non-disassembly-removable sump pumping device according to claim 3, characterized in that: The drive assembly includes a drive motor (503) and a transmission shaft (501). The drive motor (503) is fixedly mounted on one side of the water pump (400) via a mounting bracket (502). The transmission shaft (501) is vertically mounted and its top end is connected to the drive motor (503). The bottom end of the drive motor (503) is fixedly connected to the center of the rotating plate (18).

5. The non-disassembly-removable sump pumping device according to claim 1, characterized in that: The top of the slider (14) is fixedly provided with a connecting shaft (17), and the connecting spring (16) is sleeved on the connecting shaft (17).

6. The non-disassembly-removable sump pumping device according to claim 1, characterized in that: The inner sleeve (11) has a sliding groove (111) on its side, and the outer sleeve (10) has a sliding block on its inner wall that slides and engages with the sliding groove (111).

7. The non-disassembly-removable sump pumping device according to claim 1, characterized in that: The number of outgoing water outlets (12) and internal water outlets (112) are both five.

8. The non-disassembly-required sump pumping device according to claim 1, characterized in that: The distance from the bottom end of the inner sleeve (11) to the outer sleeve (10) is at least 3 cm.

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