A water well wall cleaning system

Abstract

The present invention provides a water well wall cleaning system, which relates to the technical field of water well wall cleaning equipment; it includes a base, a guide part and a cleaning part. Among them, the guide part includes a plurality of guide units arranged at intervals along the circumference of the base, and each guide unit includes a sliding member, two mounting rods and a guide wheel; the sliding member is arranged on the base so as to be liftable, one of the two mounting rods is hinged to the base, the other of the two mounting rods is hinged to the sliding member, and the free ends of the two mounting rods are respectively hinged to the guide wheels. The cleaning part includes a plurality of cleaning units arranged at intervals along the circumference of the base, and each cleaning unit includes a swing arm, and a water nozzle provided on the swing arm and connected to the water supply device, and each water nozzle can expand outward or retract inward as the swing arm rotates. The water well wall cleaning system of the present invention can be well applied to water wells of different calibers.

Description

Technical Field

[0001] The present invention relates to the technical field of water well wall cleaning equipment, and in particular to a water well wall cleaning system. Background Art

[0002] In areas with water-rich, highly permeable strata, dewatering projects are a common groundwater control measure during underground engineering construction. However, the large amounts of groundwater extracted by water projects waste water resources. Therefore, recharging the pumped groundwater back into the ground through wells is an effective measure for groundwater conservation. However, due to the presence of mud, impurities, and bubbles in the water, continuous recharging can cause congestion in the well walls. This congestion in the recharge infiltration path leads to a continuous decline in the well's recharge efficiency, compromising its effectiveness and necessitating well cleaning.

[0003] The invention patent application number 2024106419826 previously applied by the applicant provides a recharge well wall cleaning robot, which drives the cam body to rotate through the cam rod, so that while the body moves up and down, the cam body moves the cross bar and drives the cross bar to move up and down, so that the cleaning mechanism can move up and down while rotating, thereby effectively increasing the contact area with the well wall. However, the cleaning effect of the above scheme is poor. Summary of the Invention

[0004] To this end, the present invention proposes a water well wall cleaning system to achieve better cleaning effect.

[0005] The technical solutions of the present invention are as follows:

[0006] A water well wall cleaning system, comprising:

[0007] matrix;

[0008] The guide portion includes a plurality of guide units, each of which is spaced apart along the circumference of the base; each of the guide units includes a sliding member, two mounting rods, and a guide wheel; the sliding member is movably mounted on the base, one of the two mounting rods is hinged to the base, and the other is hinged to the sliding member; the free ends of the two mounting rods are respectively hinged to the guide wheels;

[0009] The cleaning part includes a plurality of cleaning units, each of which is arranged at intervals along the circumference of the base; each of the cleaning units includes a swing arm and a water nozzle provided on the swing arm, and the water nozzle is connected to the water supply device provided on the base and can expand outward or retract inward with the rotation of the corresponding swing arm.

[0010] Furthermore, a first barrel section is provided on the base, and a cavity is provided in the first barrel section; a water inlet pipe extending into the cavity is provided on the bottom end of the first barrel section, and the water inlet pipe is connected to the water supply device; a water outlet pipe is provided on the top end of the first barrel section, and the water outlet pipe is connected to each of the water nozzles; and a filter screen is provided in the cavity, and the filter screen cover is on the intersection where the inner hole of the water outlet pipe and the inner wall of the cavity intersect.

[0011] Furthermore, a filter plate is provided in the cavity, and the filter plate is located above the water inlet pipe and below the filter screen; a cover ring is provided on the lower end surface of the filter plate, and the cover ring includes a conical section and a cylindrical section connected in series, and the cylindrical section is connected to the bottom end surface of the conical section, and the diameter of the conical section gradually increases from top to bottom, and the top end of the water inlet pipe is higher than the top end surface of the cylindrical section.

[0012] Furthermore, a guide shaft is fixed on the base, an external thread is constructed on the outer periphery of the guide shaft, two limit plates are screwed on the external thread, the sliding member can be slidably mounted on the guide shaft and is located between the two limit plates, and a first elastic member is respectively provided between the two limit plates and the sliding member.

[0013] Furthermore, corresponding to each of the cleaning units, a mounting plate is fixedly provided on the base, a rotating shaft is provided on the mounting plate, the swing arm is rotatably sleeved on the rotating shaft, and the swing arm includes a long arm section and a short arm section that are fixedly connected and non-collinear, and the water nozzle is fixedly provided on the long arm section;

[0014] An arc-shaped long hole is constructed on the mounting plate, and a through hole is opened on the short arm section. A bolt can pass through the through hole and the long hole and be screwed with a nut to fix the swing arm relative to the mounting plate, and the fixed position of the bolt in the long hole can be adjusted along the length direction of the long hole, so that the position of the water nozzle can rotate with the long arm section.

[0015] Furthermore, it also includes a scraping unit arranged on the base; the scraping unit includes a motor arranged on the base, a cleaning disk that can be driven to rotate by the motor, and a plurality of scrapers arranged on the outer periphery of the cleaning disk.

[0016] Furthermore, a first one-way clutch and a second one-way clutch are sleeved on the motor shaft of the motor at intervals, and the installation directions of the first one-way clutch and the second one-way clutch are opposite; the cleaning disc is fixedly sleeved on the first one-way clutch, and a first gear is sleeved on the second one-way clutch, and a transmission unit is provided between the first gear and each of the scrapers;

[0017] When the motor shaft rotates in one direction, it can drive the cleaning disc to rotate via the first one-way clutch; when the motor shaft rotates in the opposite direction, it can drive the first gear to rotate via the second one-way clutch, and drive each of the scrapers to slide radially along the cleaning disc through the transmission unit.

[0018] Furthermore, a camera unit is provided on the base, and the camera unit is used to capture images of the well wall of the water well.

[0019] Furthermore, it also includes a control system for being placed outside the water well, and the control system includes a display screen, and the display screen is used to display the image captured by the camera unit.

[0020] Furthermore, a flow sensor, a flow velocity sensor and a flow direction sensor are provided on the substrate.

[0021] The working principle and beneficial effects of the present invention are:

[0022] The water well wall cleaning system provided by the present invention can, firstly, adjust the distance between the guide wheel and the axis of the base body by sliding a sliding member, thereby enabling each pulley to conform to the wall surface of wells of different diameters, making the water well wall cleaning system suitable for wells of varying diameters. Secondly, by providing a plurality of water nozzles that can be expanded or retracted, the distance between each water nozzle and the well wall can be minimized, thereby achieving a better flushing effect on the well wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 A three-dimensional diagram of a water well wall cleaning system provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0026] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0027] Figure 4 A cross-sectional view of a first barrel section provided in an embodiment of the present invention;

[0028] Figure 5 An exploded view of a scraping unit provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the cooperation between the drive disc and the scraper provided in an embodiment of the present invention;

[0030] Figure 7A cross-sectional view of a scraping unit provided in an embodiment of the present invention;

[0031] Figure 8 This is a diagram of the installation structure of the friction block provided by an embodiment of the present invention on the cleaning disk.

[0032] In the figure: 100, base; 110, first barrel section; 111, water inlet pipe; 112, water outlet pipe; 113, filter screen; 114, filter plate; 115, cover ring; 1151, conical section; 1152, cylindrical section; 116, solid particles; 120, second barrel section; 130, mounting plate; 101, cavity; 102, long hole; 200, guide part; 210, guide unit; 211, sliding member; 212, mounting rod; 213, guide wheel; 220, guide shaft; 230, limit plate; 240, first elastic member; 300, cleaning part; 310, swing arm; 31 1. Short arm section; 312. Long arm section; 313. Bolt; 320. Water nozzle; 400. Sample collection chamber; 410. Bottom plate; 420. Ring body; 500. Scraping unit; 510. Motor; 520. Cleaning disc; 521. Guide rail; 530. Scraper; 540. First one-way clutch; 550. Second one-way clutch; 551. First gear; 552. Second gear; 553. Third gear; 554. Fourth gear; 555. Connecting shaft; 560. Drive disc; 561. Friction block; 562. Second elastic member; 501. Mounting cavity; 502. Drive slot. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0034] This embodiment provides a water well wall cleaning system, which will be referred to as the cleaning system in the following text. Figures 1 to 3 As shown, it includes a base 100, a guide portion 200, and a cleaning portion 300. The guide portion 200 includes a plurality of guide units 210 spaced apart along the circumference of the base 100. Each guide unit 210 includes a sliding member 211, two mounting rods 212, and a guide wheel 213. The sliding member 211 is movably mounted on the base 100. One of the two mounting rods 212 is hingedly connected to the base 100, and the other of the two mounting rods 212 is hingedly connected to the sliding member 211. The free ends of the two mounting rods 212 are respectively hingedly connected to the guide wheels 213.

[0035] The cleaning section 300 includes several cleaning units arranged at intervals along the circumference of the base 100, each cleaning unit including a swing arm 310 and a water nozzle 320 provided on the swing arm 310 and connected to a water supply device provided on the base. Each water nozzle 320 can expand outward or retract inward as the swing arm 310 rotates.

[0036] Based on the above-mentioned overall structure, the cleaning system of this embodiment can adjust the distance between the guide wheel 213 and the axis of the base 100 by adjusting the position of the sliding member 211, so that the cleaning system can be applied to the cleaning of the well wall of water wells of different diameters. By adjusting the extension degree of each water nozzle 320, each water nozzle 320 can be made as close to the well wall as possible for water wells of different diameters, thereby achieving a better flushing effect on the well wall. Specifically, when the cleaning system of this embodiment is in use, the position of each guide wheel 213 and each water nozzle 320 can be adjusted in advance outside the well according to the diameter of the well so that it is compatible with the diameter of the well. The cleaning system can then be hoisted into the well, and each guide wheel 213 guides the downward movement of the base 100, and each water nozzle 320 flushes away debris attached to the well wall.

[0037] For specific structure, refer to Figure 1 and Figure 4 As shown, in this embodiment, a first barrel section 110 is provided on the base 100, within which a cavity 101 is disposed. A water inlet pipe 111 is provided at the bottom end of the first barrel section 110, extending into the cavity 101. This water inlet pipe 111 is connected to the aforementioned water supply device. A water outlet pipe 112 is provided at the top end of the first barrel section 110, which is connected to each water nozzle. A filter screen 113 is also fixed within the cavity 101, covering the intersection of the inner hole of the water outlet pipe 112 and the inner wall of the cavity 101.

[0038] refer to Figure 1 As shown, the base 100 of this embodiment also includes a second barrel section 120 fixedly connected to the first barrel section 110 and located below the first barrel section 110. The above-mentioned water supply device is a water pump fixedly installed in the second barrel section 120. First filter holes are provided on the side wall of the second barrel section 120 so that water in the well can enter the inner cavity of the second barrel section 120 through each first filter hole to be sucked by the water pump and pumped into the above-mentioned water inlet pipe 111. Among them, the connection method between the output end of the water pump and the water inlet pipe 111 can refer to the existing technology and will not be repeated here. It should be noted that the water pump is not shown in the drawings of this embodiment because it does not affect understanding.

[0039] In this embodiment, reference Figure 4As shown, a filter plate 114 is fixedly installed in the cavity 101, located above the water inlet pipe 111 and below the filter screen 113. A cover ring 115 is fixedly installed on the lower end surface of the filter plate 114. The cover ring 115 includes a conical section 1151 and a cylindrical section 1152 connected in series. From top to bottom, the diameter of the conical section 1151 gradually increases, and the top surface of the cylindrical section 1152 is connected to the bottom surface of the conical section 1151. The water inlet pipe 111 extends into the cover ring 115, and the top surface of the water inlet pipe 111 is higher than the top surface of the cylindrical section 1152.

[0040] By providing the above-mentioned filter plate 114 and cover ring 115, the water entering the cavity 101 through the water inlet pipe 111 will first move downward, and then enter the top of the filter plate 114 from the gap between the cover ring 115 and the inner wall of the cavity 101. During this process, the solid particles 116 in the water will fall on the bottom surface of the cavity 101 due to their greater density than water, and thus be collected.

[0041] refer to Figure 1 and Figure 2 As shown, in this embodiment, a guide shaft 220 is provided on the base 100, and an external thread is constructed on the outer periphery of the guide shaft 220, and two limit plates 230 are screwed on the external thread. The above-mentioned sliding member 211 is specifically sleeved on the guide shaft 220 and located between the two limit plates 230, and a first elastic member 240 is respectively provided between the two limit plates 230 and the sliding member 211.

[0042] In this embodiment, by providing the above-described sliding member 211, the positions of the two limiting plates 230 can be adjusted along the axial direction of the guide shaft 220 by rotating the two limiting plates 230, thereby adjusting the position of the sliding member 211, thereby causing the guide wheels 213 to move outward or inward. Specifically, by moving the two limiting plates 230 and the sliding member 211 downward, each guide wheel 213 can be moved outward; and by moving the two limiting plates 230 and the sliding member 211 upward, each guide wheel 213 can be moved inward. By providing a first elastic member 240 between the two limiting plates 230 and the sliding member 211, the cleaning system can have better passability. When the diameter of the well wall decreases or there is attachment on the well wall, the position of the guide wheel 213 can be automatically adjusted by the sliding member 211 compressing the first elastic member 240, allowing the cleaning system to continue moving.

[0043] In this embodiment, the first elastic member 240 is a spring that is sleeved on the guide shaft 220 and abuts between the sliding member 211 and the corresponding limiting plate 230 .

[0044] It should be noted that the hinged structures between the mounting rods 212 and the sliding member 211 , the hinged structures between the mounting rods 212 and the base 100 , and the hinged structures between the mounting rods 212 and the guide wheels 213 may refer to the prior art and will not be described in detail here.

[0045] In this embodiment, reference Figure 1 As shown, a sample collection chamber 400 is provided at the bottom end of the base 100. The sample collection chamber 400 includes a bottom plate 410 fixed to the base 100 and an inverted conical ring 420, the bottom end of which is fixedly connected to the bottom plate 410. In this embodiment, the sample collection chamber 400, in conjunction with the scraping unit 500 described below, can collect scale samples, allowing sampling and analysis of the samples to understand the cause of scale formation.

[0046] refer to Figure 1 and Figure 3 As shown, corresponding to each cleaning unit, a mounting plate 130 is fixedly mounted on the base 100. The mounting plate 130 is provided with a rotating shaft, and the swing arm 310 is rotatably mounted on the rotating shaft. The swing arm 310 includes a long arm section 312 and a short arm section 311 that are fixedly connected and non-collinear. The water spray head 320 is fixed to the long arm section 312. The mounting plate 130 is constructed with an arc-shaped elongated hole 102. The short arm section 311 is provided with a through hole. A bolt 313 can pass through the through hole and the elongated hole 102 and be screwed to a nut, thereby fixing the swing arm 310 relative to the mounting plate 130. The position of the bolt 313 within the elongated hole 102 can be adjusted along the length of the elongated hole 102, so that the position of the water spray head 320 can be adjusted along the rotating shaft of the long arm section 312. It should be noted that each water nozzle 320 is connected to the water outlet pipe 112 through a hose so as to maintain communication with the water outlet pipe 112 when the water nozzle 320 is adjusted around the rotation axis. Since it does not affect understanding, the hose is not shown in the drawings of this embodiment.

[0047] That is to say, by adjusting the position of the bolt 313 in the long hole 102, the short arm section 311 and the long arm section 312 can be rotated around the rotating axis respectively, so that each water nozzle 320 is moved away from or close to the axis of the base 100, that is, each water nozzle 320 is expanded outward or retracted inward, so that each water nozzle 320 is suitable for water wells of different diameters.

[0048] refer to Figure 1 and Figures 5 to 8As shown, the cleaning system of this embodiment further includes a scraping unit 500 fixed to the base 100. The scraping unit 500 includes a motor 510 mounted on the base 100 and a cleaning disc 520 that can be driven to rotate by the motor 510. The cleaning disc 520 is provided with a plurality of scrapers 530. The scrapers 530 can scrape off hard scale on the well wall as the cleaning disc 520 rotates. In this embodiment, the scraping unit 500 can effectively scrape off hard deposits on the well wall, while the aforementioned water nozzles 320 can effectively rinse soft deposits on the well wall. The combination of the scraping unit 500 and the water nozzles 320 can effectively clean the well wall.

[0049] To enable the scraping unit 500 to cope with changes in well diameter, specifically, the uneven thickness of scale deposits on the well wall, multiple scraping operations may be required for excessively thick scale deposits. In this embodiment, each scraper 530 is capable of sliding on the cleaning disc 520 in the radial direction of the cleaning disc 520. The sliding of the scraper 530 on the cleaning disc 520 allows the scraper 530 to extend to different lengths, thereby enabling the scraping unit 500 to adapt to changes in well diameter.

[0050] For specific structure, refer to Figure 5 As shown, a mounting cavity 501 is provided in the cleaning disc 520. Three guide rails 521 are provided on the bottom surface of the mounting cavity 501 and extend radially along the cleaning disc 520. Three scrapers 530 are provided and can slide on each guide rail 521 in a one-to-one correspondence. It should be noted that the number of guide rails 521 and scrapers 530 can also be two, four, or other numbers.

[0051] refer to Figure 5 As shown, a first one-way clutch 540 and a second one-way clutch 550 are spaced apart and sleeved on the shaft of the motor 510 used to rotate the cleaning disc 520. The first one-way clutch 540 and the second one-way clutch 550 are installed in opposite directions. It should be noted that the first one-way clutch 540 and the second one-way clutch 550 can also be sleeved on a shaft driven by the shaft of the motor 510. Both the first one-way clutch 540 and the second one-way clutch 550 can be existing products, and their structures and operating principles will not be further described here.

[0052] In this embodiment, reference Figure 5As shown, the cleaning disc 520 is fixedly mounted on the first one-way clutch 540, and a first gear 551 is mounted on the second one-way clutch 550. A transmission unit is provided between the first gear 551 and each scraper 530. When the motor 510 shaft rotates in one direction, it can drive the cleaning disc 520 to rotate via the first one-way clutch 540. When the motor 510 shaft rotates in the opposite direction, it can drive the first gear 551 to rotate via the second one-way clutch 550, and drive each scraper 530 to slide radially along the cleaning disc 520 via the transmission unit.

[0053] Based on the above structure, the cleaning system of this embodiment can drive the scrapers 530 to slide radially along the cleaning disc 520 via the motor 510 shaft to adapt to changes in the well diameter. After adjusting the position of the scrapers 530, the motor 510 shaft can rotate in the opposite direction to drive the cleaning disc 520 to complete the cleaning of the well wall.

[0054] refer to Figure 5 and Figure 6 As shown, the transmission unit of this embodiment includes a driving disk 560 rotatably arranged on the cleaning disk 520, and a plurality of driving grooves 502 connected end to end are provided on the end face of the driving disk 560. The distance between each point on the center line of each driving groove 502 and the center of the driving disk 560 changes continuously, and each scraper 530 is provided with a thrust rod that can be inserted into each driving groove 502 one by one and can slide in the driving groove 502.

[0055] In this embodiment, by setting the above-mentioned driving disk 560, when the driving disk 560 rotates, the thrust rod will slide in the driving groove 502. Since the distance between the driving groove 502 and the center of the cleaning disk 520 is variable, the distance between the thrust rod and the center of the cleaning disk 520 is also variable, that is, the rotation of the driving disk 560 can enable each scraper 530 to slide synchronously along the radial direction of the cleaning disk 520.

[0056] refer to Figure 5 As shown, the transmission unit of this embodiment further includes a second gear 552 rotatably mounted on the cleaning disc 520 and meshing with the first gear 551, a third gear 553 coaxially connected to and fixedly coupled to the second gear 552 and located within the mounting cavity 501, and a fourth gear 554 coaxially connected to the drive disc 560 and meshing with the third gear 553. When the motor 510 shaft drives the first gear 551 to rotate, the second gear 552 and the third gear 553 drive the fourth gear 554 and the drive disc 560 to rotate.

[0057] In this embodiment, reference Figure 5As shown, a connecting shaft 555 for connecting the second gear 552 and the third gear 553 is provided between the second gear 552 and the third gear 553, and a damping pad is provided between the connecting shaft 555 and the cleaning disc 520. The damping pad applies a damping force to the rotation of the connecting shaft 555. In this embodiment, by providing the damping pad, it is possible to prevent the drive disc 560 from rotating unexpectedly. Specifically, after the motor 510 shaft drives the drive disc 560 to rotate into position, when the motor 510 shaft rotates in the opposite direction to drive the cleaning disc 520 to rotate, if the above-mentioned damping pad is not provided, the drive disc 560 may rotate, causing the scraper 530 to lose its position. By providing the damping pad, resistance can be applied to the rotation of the drive disc 560, thereby ensuring the position of the drive disc 560. It should be noted that the damping pad is not shown in the drawings of this embodiment because it does not affect understanding.

[0058] refer to Figure 7 and Figure 8 As shown, in this embodiment, three friction blocks 561 are slidably mounted on the top wall of the mounting cavity 501. Each friction block 561 is evenly spaced and arranged around the axis of the cleaning disk 520. A first wedge-shaped surface is provided on the top wall of the mounting cavity 501, and a second wedge-shaped surface is provided on each friction block 561. When the friction block 561 slides away from the center of the cleaning disk 520, the first wedge-shaped surface pushes the second wedge-shaped surface, causing the friction block 561 to abut against the drive disk 560.

[0059] When the cleaning disc 520 rotates to clean the well wall, the friction block 561 will be moved away from the center of the cleaning disc 520 due to centrifugal force. As the first wedge surface pushes the second wedge surface, the friction block 561 will abut against the drive disc 560, exerting friction on the drive disc 560. Without the friction block 561, when the cleaning disc 520 rotates, the scraper 530 will be pushed by the well wall and act on the drive disc 560, which may overcome the damping force and cause the cleaning disc 520 to rotate. However, by providing the friction block 561, the friction block 561 can exert friction on the drive disc 560 when the cleaning disc 520 rotates, thereby preventing the drive disc 560 from moving unexpectedly.

[0060] In this embodiment, reference Figure 7 and Figure 8 As shown, a second elastic member 562 is provided between the friction block 561 and the side wall of the mounting cavity 501. The second elastic member 562 applies a thrust to the friction block 561, causing the friction block 561 to approach the center of the cleaning disk 520. By providing the second elastic member 562, after the cleaning disk 520 stops rotating, the second elastic member 562 can push the friction block 561 back to its original position, so that the driving disk 560 can be rotated again to adjust the position of each scraper 530.

[0061] The water well wall cleaning system of this embodiment also includes a camera unit mounted on the base 100 for capturing images of the well interior. The water well wall cleaning system of this embodiment also includes a control system positioned outside the well. The control system includes a display screen for displaying the images captured by the camera unit. A staff member can operate the cleaning system based on the images displayed on the display screen. For example, the staff member can control the cleaning system to move up or down based on the well wall cleaning results displayed on the display screen.

[0062] In this embodiment, a flow sensor, a flow velocity sensor, and a flow direction sensor are also provided on the base 100. When the water well wall cleaning system is not cleaning the well wall, it remains stationary in the water well. At this time, the flow sensor, flow velocity sensor, and flow direction sensor provided on the base can monitor the flow rate, flow velocity, and flow direction of the liquid in the water well for scientific research. It should be noted that the flow sensor and flow velocity sensor can be existing products, and their structure and working principle will not be described in detail here. In addition, since it does not affect understanding, the flow sensor and flow velocity sensor are not shown in the drawings of this embodiment.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water well wall cleaning system, characterized in that: include: matrix; The guide portion includes a plurality of guide units arranged at intervals around the circumference of the base, each guide unit comprising a sliding member, two mounting rods, and a guide wheel; the sliding member is movably mounted on the base, one of the two mounting rods is hinged to the base, the other of the two mounting rods is hinged to the sliding member, and the free ends of the two mounting rods are respectively hinged to the guide wheels; The cleaning portion includes a plurality of cleaning units spaced apart circumferentially around the base, each of the cleaning units including a swing arm and a water spray head disposed on the swing arm and connected to the water supply device, each of the water spray heads being capable of expanding outward or retracting inward as the swing arm rotates; The scraping unit further comprises a scraping unit provided on the base, the scraping unit comprising a motor provided on the base, and a cleaning disc capable of being driven to rotate by the motor, and the cleaning disc is provided with a plurality of scrapers capable of scraping hard scale on the well wall as the cleaning disc rotates; Each of the scrapers can slide on the cleaning disc along the radial direction of the cleaning disc, and a first one-way clutch and a second one-way clutch are sleeved on the motor shaft of the motor at intervals, and the installation directions of the first one-way clutch and the second one-way clutch are opposite; the cleaning disc is fixedly sleeved on the first one-way clutch, and a first gear is sleeved on the second one-way clutch, and a transmission unit is provided between the first gear and each of the scrapers; when the motor shaft rotates in one direction, the cleaning disc can be driven to rotate via the first one-way clutch, and when the motor shaft rotates in the opposite direction, the first gear can be driven to rotate via the second one-way clutch, and each of the scrapers can be driven to slide along the radial direction of the cleaning disc via the transmission unit; The cleaning disc is provided with a mounting cavity, wherein a plurality of guide rails extending radially along the cleaning disc are provided in the mounting cavity, and each of the scrapers is slidably provided on each of the guide rails; the transmission unit comprises a driving disc rotatably provided on the cleaning disc, and a plurality of driving grooves connected end to end are provided on the end surface of the driving disc, and the distance between each point on the center line of each driving groove and the center of the driving disc changes continuously, and each of the scrapers is provided with a thrust rod which can be inserted into each driving groove in a one-to-one correspondence and can slide in the driving groove; The transmission unit further includes a second gear rotatably mounted on the cleaning disc and meshing with the first gear, a third gear coaxially connected to and secured to the second gear and located within the mounting cavity, and a fourth gear coaxially connected to the driving disc and meshing with the third gear; Three friction blocks are slidably provided on the top wall of the mounting cavity, and each of the friction blocks is evenly and spaced apart around the axis of the cleaning disk; and a first wedge surface is provided on the top wall of the mounting cavity, and a second wedge surface is provided on the friction block. When the friction block slides in a direction away from the center of the cleaning disk, the first wedge surface can push the second wedge surface to make the friction block abut against the driving disk, and a second elastic member is provided between the friction block and the side wall of the mounting cavity, and the second elastic member can push the friction block to reset.

2. The water well wall cleaning system according to claim 1, characterized in that: The base includes a first barrel section having a cavity; a water inlet pipe extending into the cavity is provided on the bottom end of the first barrel section, a water outlet pipe connected to the cavity and extending upward is provided on the top end of the first barrel section, and a filter screen covering the intersection of the water outlet pipe and the first barrel section is also fixed in the cavity; one end of the water inlet pipe away from the first barrel section is connected to a water pump provided on the base, and one end of the water outlet pipe away from the first barrel section is connected to each of the water nozzles.

3. The water well wall cleaning system according to claim 2, characterized in that: The cavity is also fixed with a filter plate located above the water inlet pipe and below the filter screen. A cover ring is fixed on the lower end surface of the filter plate. The cover ring includes a conical section and a cylindrical section connected in series. From top to bottom, the cross-section of the conical section is gradually increased. The cylindrical section is connected to the bottom end surface of the conical section, and the top end of the water inlet pipe is higher than the top end surface of the cylindrical section.

4. The water well wall cleaning system according to claim 1, characterized in that: A guide shaft is fixed on the base, an external thread is constructed on the outer circumference of the guide shaft, two limit plates are screwed on the external thread, the sliding member is sleeved on the guide shaft and is located between the two limit plates, and a first elastic member is respectively provided between the two limit plates and the sliding member.

5. The water well wall cleaning system according to claim 1, characterized in that: Corresponding to each of the cleaning units, a mounting plate is fixedly provided on the base, and a rotating shaft is provided on the mounting plate, the swing arm is rotatably sleeved on the rotating shaft, and the swing arm includes a long arm section and a short arm section that are fixedly connected and non-collinear, and the water nozzle is fixedly provided on the long arm section; An arc-shaped long hole is constructed on the mounting plate, and a through hole is opened on the short arm section. A bolt can pass through the through hole and the long hole and be screwed with a nut to fix the swing arm relative to the mounting plate, and the position of the bolt in the long hole can be adjusted along the length direction of the long hole, so that the position of the water nozzle can be adjusted around the rotating shaft along with the long arm section.

6. The water well wall cleaning system according to any one of claims 1 to 5, characterized in that: The base is provided with a camera unit for capturing images of the well wall of the water well.

7. The water well wall cleaning system according to claim 6, characterized in that: The device also includes a control system for being placed outside the water well. The control system includes a display screen for displaying images captured by the camera unit.

8. The water well wall cleaning system according to claim 1, characterized in that: A flow sensor and a flow velocity sensor are provided on the base.

Images