Disassembly-free unblocking pit water pumping device

Abstract

The invention relates to a disassembly-free unblocking pit water pumping device, and belongs to the technical field of desulfurization absorption towers, the disassembly-free unblocking pit water pumping device comprises a water pump and a filter cartridge assembly, the filter cartridge assembly comprises an outer filter cartridge and an inner filter cartridge rotatably sleeved with the outer filter cartridge; a plurality of rectangular inner filtering openings which are longitudinally formed are formed in the front side and the rear side of the inner filtering cylinder, and a plurality of rectangular outer filtering openings are formed in the positions, corresponding to the inner filtering openings, of the front side and the rear side of the outer filtering cylinder; the top end of the outer filter cartridge is sleeved with a through connection cartridge in a sealing and penetrating mode, the bottom end of the through connection cartridge extends into the outer filter cartridge and communicates with the inner filter cartridge, and the top end of the through connection cartridge is connected with a water suction pump; a pair of clamping devices for clamping the outer filter cartridge is symmetrically mounted on the side surface, extending out of the top end of the outer filter cartridge, of the adapter cartridge; the filter cartridge assembly further comprises a flushing device used for flushing water from the inner filter opening to the outer filter opening. The blockage problem of the filter screen can be cleaned without dismounting, and the maintenance time and cost of a pit system are greatly shortened.

Description

Technical Field

[0001] The invention relates to a disassembly-free pit clearing and blockage pumping device, belonging to the technical field of desulfurization absorption towers. Background Art

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

[0003] In the daily operation of thermal power plants, the pumping system of the desulfurization absorption tower pit needs to continuously remove wastewater to prevent water accumulation in the pit and equipment corrosion. However, due to the presence of solid particles in the wastewater, the pumping system is prone to blockage and needs to be regularly shut down, disassembled and cleared, which not only delays the progress of the work, but also wastes time and effort.

[0004] A thermal power plant pit liquid level device disclosed in a Chinese utility model patent with publication number CN217932510U comprises a thermal power plant pit, a mounting block is fixedly arranged in the thermal power plant pit, a bottom groove is opened at the bottom of the mounting block, mounting holes are opened on both side walls of the bottom groove, a filter plate is fixedly arranged in the mounting hole, a connecting groove is opened on the top inner wall of the bottom groove, limiting grooves are opened on both side walls of the connecting groove, a limiting plate is in sliding contact with the two limiting grooves, a counterweight rod is fixedly arranged at the bottom of the limiting plate, a floating plate is fixedly arranged at the bottom end of the counterweight rod, conductive sheets are arranged on the top of the limiting plate and the inner wall of the top of the connecting groove, a water pump and a timing controller are fixedly arranged on the side of the mounting block, and a suction pipe and a drainage pipe are connected to the water pump.

[0005] The water pump in the above reference example is directly connected to the suction pipe and the drainage pipe, without taking into account the presence of solid particles in the wastewater. This can easily lead to blockage of the suction pipe and require disassembly and maintenance, which is time-consuming and laborious. Therefore, improvement is urgently needed. Summary of the invention

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the present invention designs a disassembly-free pit pumping device, which can clear the filter blockage problem without disassembly, greatly shortening the maintenance time and cost of the pit system.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A disassembly-free pit clearing and blockage pumping device comprises a water pump and a filter cartridge assembly, wherein the filter cartridge assembly comprises an outer filter cartridge and an inner filter cartridge rotatably sleeved inside the outer filter cartridge, a plurality of longitudinally arranged rectangular inner filter ports are provided on the front and rear sides of the inner filter cartridge, and a plurality of rectangular outer filter ports are provided on the front and rear sides of the outer filter cartridge at positions corresponding to the inner filter ports; a transfer cartridge is sealed and penetrated through the top end of the outer filter cartridge, the bottom end of the transfer cartridge extends into the interior of the outer filter cartridge and is connected to the inner filter cartridge, and the top end of the transfer cartridge is connected to the water pump; a pair of clamping devices for clamping the outer filter cartridge are symmetrically installed on the side surfaces of the transfer cartridge extending out of the top end of the outer filter cartridge; the filter cartridge assembly also comprises a flushing device for flushing water from the inner filter port to the outer filter port.

[0009] Furthermore, the clamping device includes an articulated seat fixed on the adapter cylinder, a clamping rod hinged to the articulated seat by a torsion spring, and a clamping ball fixed to the free end of the clamping rod. The side surface of the outer filter cylinder is evenly provided with a plurality of card interfaces along the circumferential direction, and the clamping ball is card-engaged with the card interface.

[0010] Furthermore, the flushing device includes an outer sleeve and an inner sleeve, the top end of the outer sleeve penetrates the outer filter cartridge and the inner filter cartridge from bottom to top and then extends into the inner filter cartridge, and the side of the tube body of the outer sleeve located inside the inner filter cartridge is provided with a plurality of external water outlets corresponding to each inner filter port, the inner sleeve is slidably sleeved up and down inside the outer sleeve, and the side of the inner sleeve is provided with a plurality of internal water outlets corresponding to each external water outlet; the top end of the inner sleeve is connected to the top end of the inner sleeve by a spring assembly, and the bottom end of the inner sleeve is connected to the external flushing water through a hose.

[0011] Further, the spring assembly comprises a fixing frame fixed to the top inner side of the outer sleeve, the front end surface of the fixing frame is provided with a rectangular mounting groove, a sliding block is slidably mounted in the mounting groove up and down, the front end surface of the sliding block is provided with a closed sliding groove arranged in a closed loop, a guide block is wrapped in the middle of the closed sliding groove, the bottom end of the guide block is recessed upward and provided with an upper convex point, the bottom end of the closed sliding groove is convex upward and provided with a lower convex point, and the upper convex point and the lower convex point are staggered; a connecting rod is fixedly connected to the bottom end of the sliding block, and the bottom end of the connecting rod is fixedly connected to the top end of the inner sleeve after sliding through the fixing frame, and a connecting spring is arranged between the top end of the sliding block and the top inner side of the mounting groove; a hinged rod hinged to the front end surface of the fixing frame is arranged at the top end of the mounting groove, a sliding card shaft is vertically fixedly sleeved at the free end of the hinged rod, and the free end of the sliding card shaft is slidably arranged in the closed sliding groove, and when the sliding card shaft is located at the top end of the closed sliding groove, the inner water outlet and the outer water outlet are staggered, and when the sliding card shaft is located at the bottom end of the closed sliding groove, the inner water outlet and the outer water outlet overlap with each other.

[0012] Furthermore, it also includes an intermittent adjustment mechanism for driving the outer sleeve to rotate periodically, the intermittent adjustment mechanism includes a driving assembly and a dial assembly, the dial assembly includes a rotating plate and an intermittent rotating plate, the intermittent rotating plate is fixedly sleeved outside the outer sleeve, and the side surface of the intermittent rotating plate is evenly provided with four arc-shaped openings along the circumferential direction, a dial groove is provided between any two adjacent arc-shaped openings, and any two adjacent dial grooves are arranged perpendicular to each other; the rotating plate is driven to rotate by the driving assembly, and a clearance gap is provided on the rotating plate, and a toggle rod fixed to the center position of the top end of the rotating plate is provided in the middle of the clearance gap, and a toggle shaft is fixedly installed on the top of the free end of the toggle rod, and the toggle shaft is sequentially inserted into and exited from each dial groove during the rotation process, and when the toggle shaft exits the dial groove, the arc-shaped opening is coplanar with the arc-shaped edge of the rotating plate.

[0013] Furthermore, the driving assembly includes a driving motor and a transmission shaft. The driving motor is fixedly arranged on one side of the water pump through a mounting frame. The transmission shaft is vertically arranged and the top end of the transmission shaft is transmission-connected to the driving motor. The bottom end of the driving motor is fixedly connected to the center position of the rotating plate.

[0014] Furthermore, a connecting shaft is fixedly provided on the top of the sliding block, and the connecting spring is sleeved outside the connecting shaft.

[0015] Furthermore, a sliding groove is provided on the side surface of the inner sleeve, and a sliding block is provided on the inner wall of the outer sleeve to be slidably engaged with the sliding groove up and down.

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

[0017] Furthermore, the distance that the bottom end of the inner sleeve protrudes from the outer sleeve is at least 3 cm.

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

[0019] 1. In the present invention, when the outer filter cartridge is clogged, high-pressure water can be flushed into the inner filter cartridge through a flushing device, and the high-pressure water can flush from the inner filter port to the outer filter port, thereby flushing the clogged outer filter cartridge to prevent the outer filter cartridge from continuing to be clogged. At the same time, in conjunction with the rotation of the outer filter cartridge, during the rotation of the outer filter cartridge, the overlapping area of ​​the inner filter port and the outer filter port gradually increases, and the space at the original clogged position will also become wider. In conjunction with the impact force of the flushing device flushing water outward, the clogged outer filter cartridge can be well prevented from being blocked, and there is no need to disassemble it, which is simple and efficient.

[0020] 2. In the present invention, the flushing device and the spring assembly are arranged so that when water needs to be introduced into the inner filter cartridge, the inner sleeve can be pushed upward, and the inner sleeve will drive the connecting rod to be pushed upward. When the connecting rod is pushed upward, the slider can be pushed upward. When the slider moves upward, the sliding clamp shaft will move along the path of the closed slide groove. When the sliding clamp shaft moves to the lower convex point position, the inner sleeve is released. At this time, the slider loses thrust and falls back under the action of gravity, and the sliding clamp shaft is just stuck in the depression of the upper convex point, and at this time, the inner water outlet and the outer water outlet coincide, and the inner sleeve can be introduced with water normally. When the inner filter cartridge does not need to be introduced with water, an upward pushing force is first given to the inner sleeve. Due to the staggered arrangement of the upper convex point and the lower convex point, When the inner sleeve moves upward, the slider also moves upward, so that the sliding clamping shaft can abut against the inclined surface of the lower convex point. At this time, the sliding clamping shaft can be re-engaged in the side of the closed slide groove under the guidance of the inclined surface of the lower convex point, and the inner sleeve is released again. The sliding clamping shaft returns to the top of the closed slide groove, and the inner water outlet and the outer water outlet return to the dislocated position, completing one adjustment. The connecting spring can accelerate the resetting and prevent the inner sleeve from being accidentally touched and pushed upward, ensuring that the inner sleeve can stably block the outer water outlet during filtering work, so that the position of the inner sleeve can be well adjusted to realize water discharge or stop water discharge at the outer water outlet, effectively improving the applicability of the device.

[0021] 3. In the present invention, the setting of the intermittent adjustment mechanism can control the water outlet direction of the external water outlet, which can not only clean the inner wall of the inner filter cartridge, but also flush the outer filter port when the outer filter cartridge is blocked, effectively avoiding continuous blockage and does not need to be disassembled for cleaning. At the same time, when the external water outlet is aligned with the outer filter port, the outer filter cartridge can be rotated so that the inner filter port and the outer filter port completely overlap. At this time, the external water outlet can be driven forward and reversely to make the external water outlet reciprocate within the width of the outer filter port on one side, so that each position of the outer filter port can be effectively flushed, which can further solve the blockage problem of the outer filter port. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a main structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the filter cartridge assembly and the flushing device after being disassembled;

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

[0025] Figure 4 It is a schematic diagram of the matching of the outer sleeve and the inner sleeve of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the inner sleeve of the present invention;

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

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

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

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

[0031] The reference numerals are: 100, filter cartridge assembly; 200, clamping device; 300, flushing device; 400, water pump; 500, intermittent adjustment mechanism; 501, transmission shaft; 502, mounting frame; 503, driving motor; 1, outer filter cartridge; 2, inner filter cartridge; 201, inner filter port; 3, outer filter port; 4, adapter cartridge; 5, hinged seat; 6, clamping rod; 7, clamping ball; 9, card interface; 10, outer sleeve; 11, inner sleeve; 111, sliding card slot; 112, inner water outlet; 113, connecting rod; 12, outer water outlet; 13, fixing frame; 131, mounting groove; 14, sliding block; 141, closing slide groove; 142, upper convex point; 143, lower convex point; 144, guide block; 15, hinged rod; 151, sliding clamping shaft; 16, connecting spring; 17, connecting shaft; 18, rotating plate; 181, making way gap; 19, toggle rod; 20, toggle shaft; 21, intermittent rotating plate; 22, arc-shaped mouth; 23, toggle groove. DETAILED DESCRIPTION

[0032] The present invention is described in more detail below with reference to the embodiments.

[0033] Embodiment 1

[0034] See also Figures 2 to 5 The non-disassembly-free pit pumping device for clearing blockage of this embodiment includes a pumping pump 400 and a filter cartridge assembly 100. The pumping pump 400 is fixedly installed at a certain height above the pit.

[0035] The filter cartridge assembly 100 includes an outer filter cartridge 1 and an inner filter cartridge 2 rotatably mounted inside the outer filter cartridge 1. Five longitudinally arranged rectangular inner filter ports 201 are provided on both the front and rear sides of the inner filter cartridge 2. A number of rectangular outer filter ports 3 are provided on both the front and rear sides of the outer filter cartridge 1 at positions corresponding to the inner filter ports 201. That is, the outer filter cartridge 1 can be rotated so that 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, thereby adjusting the water flow rate during filtration.

[0036] In this embodiment, during normal filtration, only half of the width of the inner filter port 201 and the outer filter port 3 overlap each other.

[0037] Among them, a transfer tube 4 is sealed and penetrated through the top end of the outer filter tube 1, and the bottom end of the transfer tube 4 extends into the interior of the outer filter tube 1 and is connected with the inner filter tube 2. The top end of the transfer tube 4 is connected to a water pump 400. After the water pump 400 is started, the waste water is filtered through the outer filter tube 1, and is pumped away by the water pump 400 after passing through the inner filter tube 2 and the transfer tube 4, thereby filtering the waste water in the pit and returning it to the required location.

[0038] In order to ensure that the outer filter cartridge 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 cartridge 1 are symmetrically installed on the side of the adapter cartridge 4 extending out of the top of the outer filter cartridge 1.

[0039] Specifically, the clamping device 200 includes an articulated seat 5 fixed on the adapter tube 4, a clamping rod 6 hinged to the articulated seat 5 by a torsion spring, and a clamping ball 7 fixed to the free end of the clamping rod 6. A plurality of card interfaces 9 are evenly arranged along the circumference on the side of the outer filter tube 1, and the clamping ball 7 is engaged with the card interface 9. Through the plurality of card interfaces 9 evenly arranged along the circumference, the rotation angle of the outer filter tube 1 can be accurately adjusted, that is, each time the outer filter tube 1 is rotated, the clamping ball 7 is engaged with the next card interface 9, so that the overlapping area of ​​the inner filter port 201 and the outer filter port 3 can be accurately 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 arranged inside the inner filter cartridge 2, and the flushing device 300 is externally connected to high-pressure water. When the outer filter cartridge 1 is blocked, high-pressure water can be flushed into the inner filter cartridge 2 through the flushing device 300, and the high-pressure water can be flushed from the inner filter port 201 to the outer filter port 3, thereby flushing the blocked outer filter cartridge 1 to prevent the outer filter cartridge 1 from continuing to be blocked. At the same time, in conjunction with the rotation of the outer filter cartridge 1, during 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, and the space at the originally blocked position will also become wider. In conjunction with the impact force of the flushing device 300 flushing water outward, the blocked outer filter cartridge 1 can be well prevented from being blocked, and no disassembly is required, which is simple and efficient.

[0041] Specifically, the flushing device 300 includes an outer sleeve 10 and an inner sleeve 11. The bottom end of the inner sleeve 11 is connected to flushing water through a hose, and the top end of the outer sleeve 10 seals and penetrates the outer filter cartridge 1 and the inner filter cartridge 2 from bottom to top and then extends into the inner filter cartridge 2.

[0042] Among them, the top end of the outer sleeve 10 is fixedly set inside the inner filter cylinder 2, the bottom end of the outer sleeve 10 extends out of the bottom end of the outer sleeve 10, the inner sleeve 11 sliding sealing sleeve is set inside the outer sleeve 10, and the bottom end of the inner sleeve 11 extends out of the outer sleeve 10, and the distance that the bottom end of the inner sleeve 11 extends out of the outer sleeve 10 is 3 cm.

[0043] In this embodiment, the side of the tube body of the outer sleeve 10 located inside the inner filter cylinder 2 is provided with five external water outlets 12 corresponding to each internal filter port 201 on one side. The inner sleeve 11 is slidably sleeved inside the outer sleeve 10 up and down, and the side of the inner sleeve 11 is provided with five internal water outlets 112 corresponding to each external water outlet 12. The external water outlet 12 and the internal water outlet 112 can be made to coincide with each other 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 upward so that the outer water port 12 and the inner water outlet 112 coincide with each other, and water can be introduced normally. When filtering, it is not necessary to inject water into the inner filter cartridge 2. At this time, the inner sleeve 11 is pulled downward so that the outer water port 12 and the inner water outlet 112 are misaligned, and the outer water port 12 can be blocked by the side wall of the inner sleeve 11, thereby achieving normal filtering.

[0045] Embodiment 2

[0046] See also Figures 6 to 8 On the basis of the above-mentioned embodiment 1, the top end of the inner sleeve 11 is connected to the top end inside the outer sleeve 10 via a spring assembly.

[0047] The spring assembly includes a fixed frame 13 fixed to the top of the inner part of the outer sleeve 10, a rectangular mounting groove 131 is provided on the front end surface of the fixed frame 13, a slider 14 is slidably installed in the mounting groove 131, a closed slide groove 141 arranged in a closed loop is provided on the front end surface of the slider 14, a guide block 144 is wrapped in the middle of the closed slide groove 141, an upper convex point 142 is recessed upward at the bottom end of the guide block 144, a lower convex point 143 is convex upward at the bottom end of the closed slide groove 141, and the upper convex point 142 and the lower convex point 143 are staggered;

[0048] The bottom end of the slider 14 is fixedly connected with a connecting rod 113, and the bottom end of the connecting rod 113 slides through the fixing frame 13 and is fixedly connected with 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 mounting groove 131.

[0049] A hinge rod 15 hinged to the front end surface of the fixed frame 13 is arranged at the top of the mounting groove 131, and a sliding card shaft 151 is vertically fixedly sleeved on the free end of the hinge rod 15. The free end of the sliding card shaft 151 is slidably clamped in the closed slide groove 141, and when the sliding card shaft 151 is located at the top of the closed slide groove 141, the inner water outlet 112 and the outer water outlet 12 are staggered, and when the sliding card shaft 151 is located at the bottom of the closed slide groove 141, the inner water outlet 112 and the outer water outlet 12 overlap with each other.

[0050] From the above description, it can be seen that when water needs to be introduced into the inner filter cartridge 2, the inner sleeve 11 can be pushed upward, and the inner sleeve 11 will drive the connecting rod 113 to be pushed upward. When the connecting rod 113 is pushed upward, the slider 14 can be pushed upward. When the slider 14 moves upward, the sliding card shaft 151 will move along the path of the closed slide groove 141. When the sliding card shaft 151 moves to the position of the lower protrusion 143, the inner sleeve 11 is released. At this time, the slider 14 loses thrust and falls back under the action of gravity, and the sliding card shaft 151 is just stuck in the depression of the upper protrusion 142, and at this time, the inner water outlet 112 and the outer water outlet 12 coincide with each other, and the inner sleeve 11 can be filled with water normally.

[0051] When the inner filter cartridge 2 does not need to take in water, an upward pushing force is first given to the inner sleeve 11. Since the upper convex point 142 and the lower convex point 143 are staggered, when the inner sleeve 11 moves upward, the slider 14 also moves upward, so that the sliding clamping shaft 151 can abut against the inclined surface of the lower convex point 143. At this time, the sliding clamping shaft 151 will be re-engaged in the side of the closed slide groove 141 under the guidance of the inclined surface of the lower convex point 143, and the inner sleeve 11 is released again. The sliding clamping shaft 151 returns to the top of the closed slide groove 141, and the inner water outlet 112 and the outer water outlet 12 return to the staggered position, completing one adjustment. The connecting spring 16 can accelerate the reset and prevent the inner sleeve 11 from being accidentally touched and pushed upward, ensuring that the inner sleeve 11 can stably block the outer water outlet 12 during the filtering work.

[0052] In this embodiment, by setting the spring assembly, the position of the inner sleeve 11 can be well adjusted to achieve water discharge or stop of water discharge from the external water outlet 12, thereby effectively improving the applicability of the device.

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

[0054] Furthermore, a sliding slot 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 , which is slidably engaged with the sliding slot 111 up and down, thereby improving the stability of the inner sleeve 11 during the up and down sliding process.

[0055] Embodiment 3

[0056] See also Figure 1 and Fig. 9 On the basis of the above-mentioned embodiment 1 or embodiment 2, this embodiment further includes an intermittent adjustment mechanism 500 for driving the outer sleeve 10 to rotate periodically, the intermittent adjustment mechanism 500 includes a driving assembly and a dial assembly, the dial assembly includes a rotating plate 18 and an intermittent rotating plate 21, the intermittent rotating plate 21 is fixedly sleeved outside the outer sleeve 10, and the side surface of the intermittent rotating plate 21 is evenly provided with four arc-shaped openings 22 along the circumferential direction, and a dial groove 23 is provided between any two adjacent arc-shaped openings 22, and any two adjacent dial grooves 23 are perpendicularly arranged to each other;

[0057] The rotating plate 18 is driven to rotate by the driving assembly. A clearance gap 181 is opened on the rotating plate 18. A toggle rod 19 fixed at the center position of the top end of the rotating plate 18 is set in the middle of the clearance gap 181, wherein the toggle rod 19 divides the clearance gap 181 into two parts. A toggle shaft 20 is fixedly installed on the top of the free end of the toggle rod 19. The toggle shaft 20 is sequentially inserted into and withdrawn from each toggle groove 23 during the rotation process, and when the toggle shaft 20 withdraws from the toggle groove 23, the arc-shaped opening 22 is coplanar with the arc-shaped edge of the rotating plate 18.

[0058] The driving assembly includes a driving motor 503 and a transmission shaft 501. The driving motor 503 is fixedly arranged on one side of the water pump 400 through a mounting frame 502. The transmission shaft 501 is vertically arranged and the top end of the transmission shaft 501 is transmission-connected to the driving motor 503. The bottom end of the driving motor 503 is fixedly connected to the center position of the rotating plate 18.

[0059] From the above description, it can be known that by starting the driving motor 503, the driving motor 503 can drive the transmission shaft 501 to rotate, and the rotation of the transmission shaft 501 can drive the rotating plate 18 to rotate, and the rotation of the rotating plate 18 can drive the toggle rod 19 to rotate. When the toggle rod 19 rotates, the toggle shaft 20 fixed to the top of the free end of the toggle rod 19 is first stuck in one of the toggle grooves 23 during the rotation process. For the convenience of description, the four toggle grooves 23 are respectively referred to as the first toggle groove 23, the second toggle groove 23, the third toggle groove 23 and the fourth toggle groove 23, and the intermittent rotating plate 21 is driven to rotate by the mutual cooperation of the toggle shaft 20 and the first toggle groove 23;

[0060] As the toggle shaft 20 continues to move, the toggle shaft 20 will gradually withdraw from the No. 1 toggle groove 23, and in the process of the toggle shaft 20 toggling the intermittent rotating plate 21 to rotate, the arc-shaped opening 22 and the arc-shaped edge of the rotating plate 18 gradually become coplanar. After the toggle shaft 20 withdraws from the No. 1 toggle groove 23, the arc-shaped opening 22 is completely coplanar with the arc-shaped edge of the rotating plate 18. At this time, the intermittent rotating plate 21 completes a rotation, and the rotation angle is exactly 90°, and the outer sleeve 10 will also rotate 90° under the drive of the intermittent rotating plate 21, that is, the external water outlet 12 will also rotate 90°. At this time, the external water outlet 12 will be aligned with the inner wall of the inner filter cartridge 2 instead of the inner filter port 201. At this time, high-pressure water is introduced into the inner filter cartridge 2, that is, the inner wall of the inner filter cartridge 2 can be flushed, and impurities and dirt on the inner wall of the inner filter cartridge 2 can be cleaned, thereby reducing the resistance of the water flow and improving the filtration efficiency.

[0061] As the toggle shaft 20 continues to move, it enters and exits the No. 2 toggle groove 23, the No. 3 toggle groove 23 and the No. 4 toggle groove 23 in sequence, the intermittent turn plate 21 rotates 90° in sequence, the outer sleeve 10 also rotates 90° in sequence, the outer water outlet 12 also rotates 90° in sequence, and the water outlet direction also changes 90° in sequence inside the inner filter cartridge 2, which can not only clean the inner wall of the inner filter cartridge 2, but also flush the outer filter port 3 when the outer filter cartridge 1 is blocked, effectively avoiding continuous blockage and no need for disassembly and cleaning. At the same time, when the outer water outlet 12 is aligned with the outer filter port 3, the outer filter cartridge 1 can be rotated so that the inner filter port 201 and the outer filter port 3 completely overlap. At this time, the driving motor 503 can be reversed forward and backward to make the outer water outlet 12 reciprocate within the width of the outer filter port 3 on one side, so that each position of the outer filter port 3 can be effectively flushed, which can further solve the blockage problem of the outer filter port 3.

[0062] The working principle of the present invention is as follows: when the outer filter cartridge 1 is clogged, high-pressure water can be flushed into the inner filter cartridge 2 through the flushing device 300, and the high-pressure water can be flushed from the inner filter port 201 to the outer filter port 3, thereby flushing open the clogged outer filter cartridge 1 to prevent the outer filter cartridge 1 from continuing to be clogged. At the same time, in conjunction with the rotation of the outer filter cartridge 1, during 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, and the space at the originally clogged position will also become wider. In conjunction with the impact force of the flushing device 300 flushing water outward, the clogged outer filter cartridge 1 can be well prevented from being blocked, and there is no need to disassemble it, which is simple and efficient.

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

[0064] When the inner filter cartridge 2 does not need to take in water, an upward pushing force is first given to the inner sleeve 11. Since the upper convex point 142 and the lower convex point 143 are staggered, when the inner sleeve 11 moves upward, the slider 14 also moves upward, so that the sliding clamping shaft 151 can abut against the inclined surface of the lower convex point 143. At this time, the sliding clamping shaft 151 will be re-engaged in the side of the closed slide groove 141 under the guidance of the inclined surface of the lower convex point 143, and the inner sleeve 11 is released again. The sliding clamping shaft 151 returns to the top of the closed slide groove 141, and the inner water outlet 112 and the outer water outlet 12 return to the staggered position, completing one adjustment. The connecting spring 16 can accelerate the reset and prevent the inner sleeve 11 from being accidentally touched and pushed upward, ensuring that the inner sleeve 11 can stably block the outer water outlet 12 during the filtering work.

[0065] By starting the driving motor 503, the driving motor 503 can drive the transmission shaft 501 to rotate, and the rotation of the transmission shaft 501 can drive the rotating plate 18 to rotate, and the rotation of the rotating plate 18 can drive the toggle rod 19 to rotate. When the toggle rod 19 rotates, the toggle shaft 20 fixed to the top of the free end of the toggle rod 19 is first stuck in one of the toggle grooves 23 during the rotation process. For the convenience of description, the four toggle grooves 23 are respectively referred to as the first toggle groove 23, the second toggle groove 23, the third toggle groove 23 and the fourth toggle groove 23, and the intermittent rotating plate 21 is driven to rotate by the mutual cooperation of the toggle shaft 20 and the first toggle groove 23;

[0066] As the toggle shaft 20 continues to move, the toggle shaft 20 will gradually withdraw from the No. 1 toggle groove 23, and in the process of the toggle shaft 20 toggling the intermittent rotating plate 21 to rotate, the arc-shaped opening 22 and the arc-shaped edge of the rotating plate 18 gradually become coplanar. After the toggle shaft 20 withdraws from the No. 1 toggle groove 23, the arc-shaped opening 22 is completely coplanar with the arc-shaped edge of the rotating plate 18. At this time, the intermittent rotating plate 21 completes a rotation, and the rotation angle is exactly 90°, and the outer sleeve 10 will also rotate 90° under the drive of the intermittent rotating plate 21, that is, the external water outlet 12 will also rotate 90°. At this time, the external water outlet 12 will be aligned with the inner wall of the inner filter cartridge 2 instead of the inner filter port 201. At this time, high-pressure water is introduced into the inner filter cartridge 2, that is, the inner wall of the inner filter cartridge 2 can be flushed, and impurities and dirt on the inner wall of the inner filter cartridge 2 can be cleaned, thereby reducing the resistance of the water flow and improving the filtration efficiency.

[0067] As the toggle shaft 20 continues to move, it enters and exits the No. 2 toggle groove 23, the No. 3 toggle groove 23 and the No. 4 toggle groove 23 in sequence, the intermittent turn plate 21 rotates 90° in sequence, the outer sleeve 10 also rotates 90° in sequence, the outer water outlet 12 also rotates 90° in sequence, and the water outlet direction also changes 90° in sequence inside the inner filter cartridge 2, which can not only clean the inner wall of the inner filter cartridge 2, but also flush the outer filter port 3 when the outer filter cartridge 1 is blocked, effectively avoiding continuous blockage and no need for disassembly and cleaning. At the same time, when the outer water outlet 12 is aligned with the outer filter port 3, the outer filter cartridge 1 can be rotated so that the inner filter port 201 and the outer filter port 3 completely overlap. At this time, the driving motor 503 can be reversed forward and backward to make the outer water outlet 12 reciprocate within the width of the outer filter port 3 on one side, so that each position of the outer filter port 3 can be effectively flushed, which can further solve the blockage problem of the outer filter port 3.

[0068] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A non-disassembly-free pit pumping device for clearing blockages, comprising a pump (400) and a filter cartridge assembly (100), characterized in that: The filter cartridge assembly (100) comprises an outer filter cartridge (1) and an inner filter cartridge (2) rotatably sleeved inside the outer filter cartridge (1); the inner filter cartridge (2) is provided with a plurality of longitudinally arranged rectangular inner filter ports (201) on both the front and rear sides; and the outer filter cartridge (1) is provided with a plurality of rectangular outer filter ports (3) at positions corresponding to the inner filter ports (201) on both the front and rear sides; The top end of the outer filter cartridge (1) is sealed and penetrated by a transfer cartridge (4), the bottom end of the transfer cartridge (4) extends into the interior of the outer filter cartridge (1) and is in communication with the inner filter cartridge (2), and the top end of the transfer cartridge (4) is connected to a water pump (400); A pair of clamping devices (200) for clamping the outer filter cylinder (1) are symmetrically mounted on the side surface of the adapter cylinder (4) extending out from the top end of the outer filter cylinder (1); The filter cartridge assembly (100) further comprises a flushing device (300) for flushing water from the inner filter port (201) to the outer filter port (3).

2. A non-disassembly-free pit pumping device for clearing blockage according to claim (1), characterized in that: The clamping device (200) comprises an articulated seat (5) fixed on the adapter cylinder (4), a clamping rod (6) hinged to the articulated seat (5) via a torsion spring, and a clamping ball (7) fixed to the free end of the clamping rod (6); a plurality of clamping interfaces (9) are evenly arranged on the side surface of the outer filter cylinder (1) along the circumferential direction, and the clamping ball (7) is clamped with the clamping interface (9).

3. A non-disassembly-free pit pumping device for clearing blockage according to claim (1), characterized in that: The flushing device (300) comprises an outer sleeve (10) and an inner sleeve (11); the top end of the outer sleeve (10) penetrates the outer filter cartridge (1) and the inner filter cartridge (2) from bottom to top and then extends into the inner filter cartridge (2); the side surface of the tube body of the outer sleeve (10) located inside the inner filter cartridge (2) is provided with a plurality of external water outlets (12) corresponding one-to-one with each inner filter port (201); the inner sleeve (11) is slidably sleeved up and down inside the outer sleeve (10); the side surface of the inner sleeve (11) is provided with a plurality of internal water outlets (112) corresponding one-to-one with each external water outlet (12); The top end of the inner sleeve (11) is connected to the top end of the inner portion of the outer sleeve (10) via a spring assembly, and the bottom end of the inner sleeve (11) is connected to flushing water via a hose.

4. A non-disassembly-free pit pumping device for clearing blockage according to claim (3), characterized in that: The spring assembly comprises a fixed frame (13) fixed at the top end of the outer sleeve (10), the front end surface of the fixed frame (13) is provided with a rectangular installation groove (131), a slider (14) is installed in the installation groove (131) for sliding up and down, the front end surface of the slider (14) is provided with a closed slide groove (141) arranged in 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 upwards and provided with an upper convex point (142), the bottom end of the closed slide groove (141) is protruding upwards and provided with a lower convex point (143), and the upper convex point (142) and the lower convex point (143) are arranged in a staggered manner; 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); A hinge rod (15) hinged to the front end surface of the fixed frame (13) is arranged at the top end of the mounting groove (131); a sliding clamping shaft (151) is vertically fixedly sleeved on the free end of the hinge rod (15); the free end of the sliding clamping shaft (151) is slidably clamped in the closed slide groove (141); and when the sliding clamping shaft (151) is located at the top end of the closed slide groove (141), the inner water outlet (112) and the outer water outlet (12) are staggered; and when the sliding clamping shaft (151) is located at the bottom end of the closed slide groove (141), the inner water outlet (112) and the outer water outlet (12) overlap each other.

5. The non-disassembly-free pit pumping device for clearing blockage according to claim (3), characterized in that: It also includes an intermittent adjustment mechanism (500) for driving the outer sleeve (10) to rotate periodically, the intermittent adjustment mechanism (500) includes a driving assembly and a dial assembly, the dial assembly includes a rotating plate (18) and an intermittent rotating plate (21), the intermittent rotating plate (21) is fixedly sleeved outside the outer sleeve (10), and the side surface of the intermittent rotating plate (21) is evenly provided with four arc-shaped openings (22) along the circumferential direction, a dial groove (23) is provided between any two adjacent arc-shaped openings (22), and any two adjacent dial grooves (23) are arranged perpendicular to each other; The rotating plate (18) is driven to rotate by a driving assembly. A clearance notch (181) is provided on the rotating plate (18). A toggle rod (19) fixed at the center position of the top end of the rotating plate (18) is provided in the middle of the clearance notch (181). A toggle shaft (20) is fixedly installed at the top of the free end of the toggle rod (19). The toggle shaft (20) is sequentially inserted into and withdrawn from each toggle groove (23) during the rotation process. When the toggle shaft (20) withdraws from the toggle groove (23), the arc-shaped opening (22) is coplanar with the arc-shaped edge of the rotating plate (18).

6. A non-disassembly-free pit pumping device for clearing blockage according to claim (5), characterized in that: The driving assembly comprises a driving motor (503) and a transmission shaft (501); the driving motor (503) is fixedly arranged on one side of the water pump (400) via a mounting frame (502); the transmission shaft (501) is arranged vertically and the top end of the transmission shaft (501) is transmission-connected to the driving motor (503); and the bottom end of the driving motor (503) is fixedly connected to the center position of the rotating plate (18).

7. A non-disassembly-free pit pumping device for clearing blockage according to claim (4), characterized in that: A connecting shaft (17) is fixedly arranged at the top end of the sliding block (14), and the connecting spring (16) is sleeved outside the connecting shaft (17).

8. The non-disassembly-free pit pumping device for clearing blockage according to claim (4), characterized in that: 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) for slidingly engaging with the sliding groove (111) up and down.

9. The non-disassembly-free pit pumping device for clearing blockage according to claim (4), characterized in that: The number of the external water outlets (12) and the number of the internal water outlets (112) are both five.

10. The non-disassembly-free pit pumping device for clearing blockage according to claim (4), characterized in that: The distance that the bottom end of the inner sleeve (11) protrudes from the outer sleeve (10) is at least 3 cm.

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