Auxiliary cleaning device for quartz sand filter material of modular water purification equipment

Abstract

The utility model discloses a quartz sand filter material auxiliary cleaning device of modular water purification equipment. The quartz sand filter material auxiliary cleaning device comprises a barrel body, a spraying assembly, a stirring assembly and a suction assembly, the stirring assembly is driven by the bidirectional rotating motor to stir, so that the filter material is disturbed in all directions, and dirt is thoroughly stripped in combination with high-pressure spraying; the suction assembly is communicated with the stirring branch pipe, so that wastewater is pumped and drained in real time, and secondary pollution is avoided; the problems that a traditional cleaning technology is poor in coverage, low in efficiency and the like are solved, and the compact and efficient requirements of modular water purification equipment are particularly met.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to an auxiliary cleaning device for quartz sand filter media in modular water purification equipment. Background Technology

[0002] Quartz sand filter media is a commonly used filtration medium in water treatment. Traditional cleaning methods, such as single backwashing or combined air-water washing, suffer from uneven backwash water flow distribution, resulting in incomplete cleaning of deep filter media. Mechanical stirring cleaning has a limited range and cannot simultaneously pump out wastewater, leading to secondary deposition of dirt. This results in many cleaning dead zones, high water consumption, and low efficiency, making it difficult to meet the high-efficiency maintenance requirements of modular water purification equipment. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to propose an auxiliary cleaning device for quartz sand filter media in modular water purification equipment.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A modular water purification equipment quartz sand filter media auxiliary cleaning device includes a cylinder, a spray assembly, a stirring assembly, and a suction assembly. The cylinder has an inlet and an outlet, and the quartz sand filter media to be cleaned is placed inside the cylinder. The spray assembly is located on the upper inner side of the cylinder and is used to spray a high-pressure water jet downwards. The stirring assembly includes a first drive unit, a first rotating rod, a second rotating rod, and multiple stirring support rods. The first rotating rod is located at the top of the cylinder and is drivenly connected to the first drive unit. The second rotating rod is drivenly connected to the first rotating rod. The stirring support rods are arranged circumferentially along the second rotating rod. The first drive unit is configured as a bidirectional rotary motor. The second rotating rod has a first connecting pipe, and the stirring support rods have a second connecting pipe. The first connecting pipe is connected to the second connecting pipe, and the second connecting pipe is also connected to the cylinder.

[0006] The suction assembly includes a second drive unit, a first suction main pipe, a second suction main pipe, and a first pump body. The second drive unit is drivenly connected to the first suction main pipe. The first pump body is mounted on the first suction main pipe and is used to pump the cleaning wastewater to the outside. The first suction main pipe and the second suction main pipe are quick-connected. The second suction main pipe is located inside the second rotating rod and is airtightly connected to the first connecting pipe. The second drive unit is configured as a telescopic cylinder.

[0007] In some embodiments, the spray assembly includes a main spray pipe, a second pump body, a first liquid storage tank, and a plurality of spray branch pipes; the plurality of spray branch pipes are arranged at intervals along the circumference of the cylinder, and the nozzles of the spray branch pipes are arranged downwards; the main spray pipe is connected to the plurality of spray branch pipes respectively, and the main spray pipe is annularly sleeved on the outside of the cylinder; the second pump body is disposed on the main spray pipe; the first liquid storage tank is connected to the main spray pipe, and the first liquid storage tank contains cleaning water.

[0008] In some embodiments, the first rotating rod is in the shape of a cylindrical tube, and the inner side of the first rotating rod is provided with a first engaging tooth; the outer side of the second rotating rod is provided with a second engaging tooth, and the second engaging tooth engages with the first engaging tooth.

[0009] In some embodiments, the stirring assembly further includes a first gear and a second gear, the first gear being sleeved on the output end of the first drive unit; the second gear being sleeved on the outside of the first rotating rod, and the second gear meshing with the first gear.

[0010] In some embodiments, the suction assembly further includes a first quick-connect plug and a second quick-connect plug. The first quick-connect plug is sleeved on the first suction main tube, and the output end of the second drive unit is connected to the first quick-connect plug. The second quick-connect plug is sleeved on the second suction main tube, and the first quick-connect plug and the second quick-connect plug are connected.

[0011] In some embodiments, the first quick-connect plug includes a first retaining ring and a first connecting portion. The first retaining ring has a first retaining groove, and the first connecting portion is tapered. The second quick-connect plug includes a second retaining ring and a second connecting portion. The second retaining ring has a first flange, which engages with the first retaining groove. The inner side of the second connecting portion is tapered, and the inner side of the second connecting portion is adapted to the outer side of the first connecting portion.

[0012] In some embodiments, a silicone layer is provided on the outer side of the first connecting portion; a silicone layer is provided on the inner side of the second connecting portion.

[0013] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0014] Unlike existing technologies, the above technical solution provides an auxiliary cleaning device for quartz sand filter media in modular water purification equipment, including a cylinder, a spray assembly, a stirring assembly, and a suction assembly. The stirring assembly is driven by a bidirectional rotary motor to agitate the filter media in all directions, and high-pressure spraying thoroughly removes dirt. The suction assembly is connected to the stirring branch pipe to pump out wastewater in real time, avoiding secondary pollution. This solution solves the pain points of traditional cleaning technologies, such as poor coverage and low efficiency, and is especially suitable for the compact and efficient requirements of modular water purification equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first schematic diagram of the cleaning device described in the specific embodiment;

[0017] Figure 2 This is a second schematic diagram of the cleaning device described in the specific embodiment;

[0018] Figure 3 This is a schematic diagram showing the connection between the first gear and the second gear in a specific implementation method;

[0019] Figure 4 This is a schematic diagram of the first quick-connect plug and the second quick-connect plug in a specific implementation method;

[0020] Figure 5 This is a schematic diagram showing the connection between the second drive unit and the first quick-connect plug in a specific implementation.

[0021] Figure label:

[0022] 1. Cylinder body;

[0023] 2. Spray system components;

[0024] 21. Sprinkler branch pipes;

[0025] 3. Stirring components;

[0026] 31. First drive unit;

[0027] 32. First rotating rod;

[0028] 33. Second rotating rod;

[0029] 34. Stirring rod;

[0030] 35. First connecting pipeline;

[0031] 36. Second connecting pipe;

[0032] 37. First gear;

[0033] 38. The second gear;

[0034] 4. Suction assembly;

[0035] 41. Second drive unit;

[0036] 42. First suction master;

[0037] 43. First quick-connect plug;

[0038] 431. First retaining ring;

[0039] 432. First connecting part;

[0040] 433. First card slot;

[0041] 44. Second quick-connect plug;

[0042] 441. Second retaining ring;

[0043] 442. Second connecting part;

[0044] 443. First flange;

[0045] 5. Quartz sand filter media. Detailed Implementation

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0047] Please see Figures 1 to 5 This embodiment provides an auxiliary cleaning device for quartz sand filter media 5 in a modular water purification equipment, including a cylinder 1, a spray assembly 2, a stirring assembly 3, and a suction assembly 4. The cylinder 1 is provided with an inlet and an outlet, and the quartz sand filter media 5 to be cleaned is provided inside the cylinder 1. The spray assembly 2 is located on the upper inner side of the cylinder 1 and is used to spray a high-pressure water column downward. The stirring assembly 3 includes a first drive unit 31, a first rotating rod 32, a second rotating rod 33, and multiple stirring support rods 34. The first rotating rod 32 is located on the top of the cylinder 1 and is drivenly connected to the first drive unit 31. The second rotating rod 33 is drivenly connected to the first rotating rod 32. The stirring support rods 34 are arranged around the second rotating rod 33. The first drive unit 31 is configured as a bidirectional rotary motor. The second rotating rod 33 is provided with a first connecting pipe 35, and the stirring support rods 34 are provided with a second connecting pipe 36. The first connecting pipe 35 is connected to the second connecting pipe 36, and the second connecting pipe 36 is also connected to the cylinder 1.

[0048] The suction assembly 4 includes a second drive unit 41, a first suction main pipe 42, a second suction main pipe, and a first pump body. The second drive unit 41 is connected to the first suction main pipe 42. The first pump body is mounted on the first suction main pipe 42 and is used to pump the cleaning wastewater to the outside. The first suction main pipe 42 and the second suction main pipe are connected by a quick-connect fitting. The second suction main pipe is located inside the second rotating rod 33 and is airtightly connected to the first connecting pipe 35. The second drive unit 41 is configured as a telescopic cylinder.

[0049] In this embodiment, the cylinder 1 is a closed container for holding quartz sand filter media 5, with an inlet for loading the quartz sand filter media 5 to be cleaned and an outlet for discharging the cleaned quartz sand filter media 5. The spray assembly 2 is installed on the upper inner side of the cylinder 1, and optionally can be composed of high-pressure nozzles for spraying a downward cleaning water column. The stirring assembly 3 consists of a first drive unit 31 (bidirectional rotary motor), a first rotating rod 32, a second rotating rod 33, and circumferentially distributed stirring support rods 34. The second rotating rod 33 has a built-in first connecting pipe 35, and the stirring support rods 34 have a built-in second connecting pipe 36. The suction assembly 4 includes a second drive unit 41, a first suction main pipe 42, a second suction main pipe, and a first pump body, and the pipes are connected by quick-connect fittings. The circumferential distribution angle of the stirring support rods 34 is preferably 30° intervals, and its surface is provided with guide grooves to enhance the water flow disturbance effect. The first connecting pipe 35 and the second connecting pipe 36 are connected by flange sealing to ensure stable transmission of suction negative pressure. A rubber sealing ring is provided at the connection between the second suction main pipe and the first connecting pipe 35, so that an airtight contact is automatically formed when the telescopic cylinder pushes the first suction main pipe 42.

[0050] The first drive unit 31 drives the second drive rod 33 to rotate bidirectionally via the first rotating rod 32, causing the stirring support rod 34 to agitate the quartz sand filter media 5 in all directions; the high-pressure water jet of the spray assembly 2 works synchronously with the mechanical stirring to improve the dirt removal efficiency; the second drive unit 41 pushes the first suction main pipe 42 to extend and retract, connecting it to the second suction main pipe, and the second suction main pipe and the first connecting pipe 35 of the stirring assembly 3 form a sealed channel, through which the first pump body pumps and discharges the cleaning wastewater in real time; the second connecting pipe 36 of the stirring support rod 34 is directly connected to the internal space of the cylinder 1 to ensure that the suction range covers the entire cleaning area.

[0051] In this embodiment, the bidirectional rotating first drive unit 31, together with the circumferential stirring support rod 34, forms a cleaning network, completely eliminating the dead angle problem in traditional cleaning; the suction assembly 4 adjusts the insertion depth of the first suction main pipe 42 through the telescopic cylinder, so that the second suction main pipe always maintains an airtight connection with the first connecting pipe 35, ensuring the immediacy and stability of wastewater pumping; compared with the traditional cleaning method, it can reduce water consumption and significantly improve the regeneration efficiency of the quartz sand filter media 5, which is particularly suitable for modular water purification systems that require frequent maintenance.

[0052] Please see Figure 2 In some embodiments, the spray assembly 2 includes a main spray pipe, a second pump body, a first liquid storage tank, and a plurality of spray branch pipes 21; the plurality of spray branch pipes 21 are arranged at intervals along the circumference of the cylinder 1, and the nozzles of the spray branch pipes 21 are arranged downward; the main spray pipe is connected to the plurality of spray branch pipes 21 respectively, and the main spray pipe is annularly sleeved on the outside of the cylinder 1; the second pump body is disposed on the main spray pipe; the first liquid storage tank is connected to the main spray pipe, and the first liquid storage tank contains cleaning water.

[0053] In this embodiment, the main spray pipe refers to the annular pipe surrounding the outside of the cylinder 1, preferably made of corrosion-resistant stainless steel, used to evenly distribute the cleaning water; the spray branch pipes 21 refer to the pipes distributed at intervals along the circumference of the cylinder 1, and the nozzles of the spray branch pipes 21 are preferably conical and downward-facing to ensure that the high-pressure water jet covers the entire 5 layers of quartz sand filter media; the second pump body refers to the high-pressure centrifugal pump, which is installed on the main spray pipe and used to pressurize and transport the cleaning water in the first storage tank to the spray branch pipes 21; the first storage tank refers to the independently set cleaning liquid container.

[0054] The second pump is started to pump the cleaning fluid from the first storage tank into the main spray pipe, forming a uniform high-pressure water curtain through the annularly distributed spray branch pipes 21. At the same time, the first drive unit 31 drives the first rotating rod 32 to make the second rotating rod 33 rotate alternately in the forward and reverse directions, and the stirring support rod 34 forms a three-dimensional disturbance in the quartz sand filter media 5. After one cleaning cycle is completed, the second drive unit 41 pushes the first suction main pipe 42 to connect with the second suction main pipe, and the first pump continuously pumps the wastewater containing dirt through the connecting pipeline network, after which the next round of cleaning can be started.

[0055] The annular spray main pipe, together with the circumferential spray branch pipe 21, achieves thorough rinsing without dead angles. The bidirectional rotating stirring component 3 allows the filter media particles to tumble and separate dirt, while the telescopic suction component 4 ensures that the stripped contaminants are removed immediately.

[0056] In some embodiments, the first rotating rod 32 is in the shape of a cylindrical tube, and the inner side of the first rotating rod 32 is provided with a first engaging tooth; the outer side of the second rotating rod 33 is provided with a second engaging tooth, and the second engaging tooth engages with the first engaging tooth.

[0057] In this embodiment, the first rotating rod 32 refers to a hollow, tubular transmission shaft with a first engaging tooth machined on its inner side. It is preferably made of 45# steel and hardened to improve wear resistance. The second rotating rod 33 has a second engaging tooth machined on its outer side to mate with the first engaging tooth; the tooth shape is preferably an involute structure to ensure smooth transmission. The engagement of the first and second engaging teeth is a helical tooth fit, which effectively avoids impact loads during bidirectional rotation. Preferably, the end of the second rotating rod 33 is provided with a positioning boss that mates with a limiting groove on the inner wall of the first rotating rod 32 to prevent axial movement.

[0058] When the first drive unit 31 drives the first rotating rod 32 to rotate, the second rotating rod 33 is driven to rotate synchronously through the meshing of the first and second locking teeth. This causes the circumferentially distributed stirring support rods 34 to generate uniform mechanical disturbance on the quartz sand filter media 5. The meshing of the first and second locking teeth ensures the reliability of bidirectional transmission and reduces operating noise. The cylindrical first rotating rod 32 reduces its own weight while providing installation space for internal pipelines. The entire transmission mechanism can maintain a precise transmission ratio during long-term use, effectively improving the operational reliability of the cleaning device.

[0059] Please see Figure 3 In some embodiments, the stirring assembly 3 further includes a first gear 37 and a second gear 38. The first gear 37 is sleeved on the output end of the first drive unit 31; the second gear 38 is sleeved on the outside of the first rotating rod 32, and the second gear 38 meshes with the first gear 37.

[0060] In this embodiment, the first gear 37 refers to the driving gear mounted on the output shaft of the first drive unit 31. It is preferably made of 20CrMnTi alloy steel and has undergone carburizing and quenching treatment. Its module is designed to be 3 to ensure sufficient transmission strength. The second gear 38 refers to the driven gear fixed to the outside of the first rotating rod 32. Its tooth width is 20% larger than that of the first gear 37 to compensate for possible installation deviations. The meshing of the first gear 37 and the second gear 38 adopts an 8-grade precision fit, and the tooth surfaces are ground to reduce operating noise. The first rotating rod 32 and the second gear 38 are connected by a key to achieve circumferential fixation, while an axial elastic retaining ring is provided to prevent loosening.

[0061] The first drive unit 31 drives the second gear 38 to rotate through the first gear 37, which in turn drives the first rotating rod 32 to rotate in both directions, eliminating the risk of slippage; the optimized gear material and heat treatment process ensure durability under frequent forward and reverse operation conditions; and enable the entire stirring assembly 3 to maintain stable working performance in a long-term high-pressure water mist environment.

[0062] Please see Figure 2 , Figure 4 and Figure 5In some embodiments, the suction assembly 4 further includes a first quick-connect plug 43 and a second quick-connect plug 44. The first quick-connect plug 43 is sleeved on the first suction main tube 42, and the output end of the second drive unit 41 is connected to the first quick-connect plug 43. The second quick-connect plug 44 is sleeved on the second suction main tube, and the first quick-connect plug 43 is connected to the second quick-connect plug 44.

[0063] In this embodiment, the first quick-connect plug 43 refers to a movable connector installed at the end of the first suction main tube 42. It has an internal sealing ring groove and is made of polytetrafluoroethylene (PTFE) to ensure wear resistance and airtightness. The second quick-connect plug 44 refers to a mating component fixed on the second suction main tube, with a guide cone surface machined on its outer surface to assist in rapid alignment. The first quick-connect plug 43 and the second quick-connect plug 44 can achieve an automatic sealing quick-connect connection under the push of the second drive unit 41 (telescopic cylinder). In this embodiment, the first quick-connect plug 43 can be detachably connected to the second drive unit 41 via fasteners and clips, facilitating the replacement of the first quick-connect plug 43.

[0064] When the telescopic cylinder is activated, it pushes the first quick-connect plug 43 to move axially and engage with the second quick-connect plug 44. At this time, the first suction main pipe 42 forms a continuous suction channel with the second suction main pipe through the quick-connect connector. This embodiment achieves rapid assembly and disassembly of the continuous suction channel through the quick-connect design, greatly simplifying the maintenance process; the sealing structure with self-compensation function ensures a reliable airtight connection under different working conditions.

[0065] Please see Figure 4 In some embodiments, the first quick-connect plug 43 includes a first retaining ring 431 and a first connecting portion 432. The first retaining ring 431 is provided with a first retaining groove 433, and the first connecting portion 432 is tapered. The second quick-connect plug 44 includes a second retaining ring 441 and a second connecting portion 442. The second retaining ring 441 is provided with a first flange 443, which engages with the first retaining groove 433. The inner side of the second connecting portion 442 is tapered, and the inner side of the second connecting portion 442 is adapted to the outer side of the first connecting portion 432.

[0066] The lower surface of the first retaining ring 431 is machined with an annular first retaining groove 433, and the first flange 443 on the upper surface of the second retaining ring 441 is an axially extending annular protrusion that matches the first retaining groove 433 to ensure a sealed connection between the first quick-connect plug 43 and the second quick-connect plug 44. The first connecting part 432 is a tapered tubular structure, and the outer tapered surface of the first connecting part 432 is precision ground to ensure the flatness of the sealing surface. The taper is preferably designed to be 15 degrees to achieve a self-centering function. The inner tapered surface of the second connecting part 442 and the outer tapered surface of the first connecting part 432 adopt a matching taper design.

[0067] When the first quick-connect plug 43 is axially advanced, the tapered outer surface of the first connecting part 432 first forms a guiding engagement with the tapered inner surface of the second connecting part 442, achieving automatic centering and positioning. As the insertion depth increases, the first flange 443 is embedded in the first slot 433, achieving locking through mechanical engagement. This embodiment, through the tapered surface engagement structure of the first connecting part 432 and the second connecting part 442, can compensate for installation deviations and form a primary sealing surface, achieving quick assembly and disassembly, ensuring connection reliability, and is suitable for fluid transport systems that require frequent disassembly and maintenance.

[0068] In some embodiments, a silicone layer is provided on the outer side of the first connecting portion 432; and a silicone layer is provided on the inner side of the second connecting portion 442.

[0069] The outer side of the first connecting part 432 is provided with a silicone layer. The silicone layer is coated on the substrate surface of the first connecting part 432 by a vulcanization process. The thickness is preferably 0.5-1mm. It is used to enhance the sealing performance and reduce the insertion and extraction resistance. The inner side of the second connecting part 442 is also provided with a silicone layer. Its inner conical surface forms an interference fit with the outer conical surface of the first connecting part 432. It generates elastic deformation during insertion to achieve airtight sealing.

[0070] In this embodiment, a silicone layer is provided on the mating surfaces of the first connecting part 432 and the second connecting part 442. When the quick-connect is made, the silicone layer undergoes uniform radial compression deformation under the action of the conical mating structure, and the elastic deformation compensates for the mating clearance caused by the machining tolerance. The elastic properties of the silicone layer enable the first connecting part 432 and the second connecting part 442 to maintain a stable sealing state when connected, and its self-lubricating properties significantly reduce the force required for insertion and removal operations.

[0071] Unlike existing technologies, the above technical solution provides an auxiliary cleaning device for quartz sand filter media 5 in a modular water purification equipment, including a cylinder 1, a spray assembly 2, a stirring assembly 3, and a suction assembly 4. The stirring assembly 3 is driven by a bidirectional rotary motor to stir the filter media in all directions, and the filter media is thoroughly cleaned by high-pressure spraying. The suction assembly 4 is connected to the stirring branch pipe to pump out wastewater in real time and avoid secondary pollution. This solution solves the pain points of traditional cleaning technologies, such as poor coverage and low efficiency, and is especially suitable for the compact and efficient requirements of modular water purification equipment.

[0072] The above description is only a part of the embodiments of this utility model, and does not limit the scope of protection of this utility model. Any equivalent device or equivalent process transformation made based on the content of this utility model specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this utility model.

Claims

1. An auxiliary cleaning device for quartz sand filter media in a modular water purification equipment, characterized in that, include: A cylindrical body, which is provided with an inlet and an outlet, and contains quartz sand filter media to be cleaned. A spray assembly is disposed on the upper inner side of the cylinder, and the spray assembly is used to spray a high-pressure water jet downwards; The stirring assembly includes a first drive unit, a first rotating rod, a second rotating rod, and a plurality of stirring support rods. The first rotating rod is disposed at the top of the cylinder and is drivenly connected to the first drive unit. The second rotating rod is drivenly connected to the first rotating rod. The stirring support rods are arranged circumferentially along the second rotating rod. The first drive unit is configured as a bidirectional rotary motor. The second rotating rod has a first connecting pipe inside it. The stirring support rods have a second connecting pipe. The first connecting pipe is connected to the second connecting pipe, and the second connecting pipe is also connected to the cylinder. The suction assembly includes a second drive unit, a first suction main pipe, a second suction main pipe, and a first pump body. The second drive unit is drivenly connected to the first suction main pipe. The first pump body is disposed on the first suction main pipe and is used to suction cleaning wastewater to the outside. The first suction main pipe and the second suction main pipe are quick-connected. The second suction main pipe is disposed inside the second rotating rod and is airtightly connected to the first connecting pipe. The second drive unit is configured as a telescopic cylinder.

2. The modular water purification equipment quartz sand filter media auxiliary cleaning device according to claim 1, characterized in that, The spray assembly includes: Multiple spray branch pipes are arranged at intervals along the circumference of the cylinder, and the nozzles of the spray branch pipes are arranged facing downwards; The main spray pipe is connected to the plurality of spray branch pipes respectively, and the main spray pipe is arranged in a ring around the outside of the cylinder; The second pump body is installed on the main spray pipe; The first liquid storage tank is connected to the main spray pipe, and the first liquid storage tank contains cleaning water.

3. The modular water purification equipment quartz sand filter media auxiliary cleaning device according to claim 1, characterized in that, The first rotating rod is in the shape of a cylindrical tube, and the inner side of the first rotating rod is provided with a first locking tooth; The outer side of the second rotating rod is provided with a second locking tooth, which engages with the first locking tooth.

4. The modular water purification equipment quartz sand filter media auxiliary cleaning device according to claim 3, characterized in that, The stirring assembly further includes: The first gear is fitted onto the output end of the first drive unit; The second gear is sleeved on the outside of the first rotating rod, and the second gear meshes with the first gear.

5. The modular water purification equipment quartz sand filter media auxiliary cleaning device according to claim 1, characterized in that, The suction assembly also includes: A first quick-connect plug is fitted onto the first suction main tube, and the output end of the second drive unit is connected to the first quick-connect plug in a transmission manner. The second quick-connect plug is fitted onto the second suction main tube, and the first quick-connect plug is connected to the second quick-connect plug.

6. The modular water purification equipment quartz sand filter media auxiliary cleaning device according to claim 5, characterized in that, The first quick-connect plug includes a first retaining ring and a first connecting part. The first retaining ring is provided with a first retaining groove, and the first connecting part is tapered. The second quick-connect plug includes a second retaining ring and a second connecting part. The second retaining ring is provided with a first flange, which engages with the first retaining groove. The inner side of the second connecting part is tapered, and the inner side of the second connecting part is adapted to the outer side of the first connecting part.

7. The modular water purification equipment quartz sand filter media auxiliary cleaning device according to claim 6, characterized in that, A silicone layer is provided on the outer side of the first connecting part; The inner side of the second connecting part is provided with a silicone layer.

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