Device for multi-stage purification of groundwater in sandy areas and purification method using the same

Abstract

To provide an underground water multistage purifying device in a sandy area and its purifying method.SOLUTION: The device comprises a machine body 1 and two side plates, the two side plates are fixedly connected to an outer wall of the machine body 1, the device further comprises a pressure reducing mechanism 2, the pressure reducing mechanism is arranged on outer walls of the side plates, the pressure reducing mechanism comprises two pressure reducing pipes, the two pressure reducing pipes are fixedly connected to the outer walls of the two side plates respectively, and outer water pipes are fixedly connected to the outer walls of the two side plates at two positions corresponding to the two pressure reducing pipes respectively. In the present invention, the groundwater drives the two piston rods to slide outwards in the decompression tubes respectively to compress the pressure springs, and the groundwater enters the two decompression tubes, so that the water storage space above the filter element in the main body is increased, thereby reducing the water pressure of the groundwater in the main body, reducing the probability that the filter element in the decompression tubes is broken or damaged due to excessive pressure, and improving the filtering effect of the filter element.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the technical field of groundwater purification, particularly to a multi-stage groundwater purification device and purification method for sandy areas. [Background technology]

[0002] In some remote mountain villages, there is no running water and people often rely on groundwater for drinking water. However, the groundwater contains a large amount of sand, making it impossible to drink directly. The water must be pumped and clarified before use, which can prevent the taps and sunlight from working properly.

[0003] Generally, when filtering groundwater, processing water is injected above the filter element inside the purifier, and groundwater is continuously injected into the purifier, thereby increasing the water pressure above the filter element inside the purifier, and thereby improving the efficiency of filtering the groundwater through the filter element inside the purifier. However, if the water pressure above the filter element inside the purifier is too great, the filter element may be subjected to too much pressure, resulting in rupture or damage, which will reduce the filtering effect of the filter element. Furthermore, if the inside of the purifier is subjected to high water pressure for a long period of time, it will accelerate wear on the parts inside the purifier, shorten the equipment's lifespan, require more frequent maintenance and replacement, and increase the maintenance and usage costs of the purifier. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-stage groundwater purification apparatus and purification method for use in sandy areas, in order to solve the problems mentioned in the background art above. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present invention is realized by the following technical means.

[0006] The present invention provides a multi-stage groundwater purification device and purification method for sandy areas, which includes a main body and two side panels fixedly connected to the outer wall of the main body, as well as a pressure reducing mechanism and a reinforcement mechanism.

[0007] The pressure reduction mechanism is provided on the outer wall of the side plate and includes two pressure reduction pipes. The two pressure reduction pipes are fixedly connected to the outer walls of the two side plates, respectively. Outer water pipes are fixedly connected to two locations on the outer walls of the two side plates corresponding to the two pressure reduction pipes, respectively. A plurality of drain holes are opened in the outer walls of the pressure reduction pipes at the ends remote from the main body.

[0008] The reinforcing mechanism is provided inside the vacuum tube. The reinforcing mechanism includes a piston rod. The piston rod is slidably connected inside the vacuum tube. A piston head is provided on a side of the piston rod that is close to the body, and a pressure spring is fixedly connected between the piston head and a side of the vacuum tube that is remote from the body.

[0009] Furthermore, a filter element mounting port is opened in the outer wall of the main body, threaded connection grooves are opened at the upper and lower ends of the filter element mounting port on the outer wall of the main body, an ascent chute is opened at the end remote from the vacuum pipe on the outer wall of the side panel, a support frame is fixedly connected to the bottom of the main body, a water supply port is fixedly connected to the top of the main body, and a drain port is fixedly connected to the bottom of the main body.

[0010] Furthermore, a drain hole is provided on the outer wall of the vacuum pipe, which is connected to the main body, and three push-and-slide holes are opened at the end of the outer wall of the outer water pipe close to the main body, and a slide bar is fixedly connected to the outer wall of the outer water pipe.

[0011] Furthermore, an extension plate is fixedly connected to the end of the outer wall of the outer water pipe remote from the push slide hole, a rotating connecting frame is fixedly connected to the end of the top of the extension plate close to the slide bar, an insertion hole is drilled at the end of the top of the extension plate remote from the rotating connecting frame, and a pressure reduction drain hole is opened on the side of the outer water pipe remote from the main body.

[0012] Furthermore, a filter element mechanism is provided inside the filter element mounting port, and the filter element mechanism includes a cartridge. The cartridge is inserted into the filter element mounting port, and a closure frame is fixedly connected to the outer wall of the cartridge. Screw connection hole blocks are fixedly connected to two locations corresponding to the two screw connection grooves on the outer wall of the closure frame, and two handles are fixedly connected to the outer wall of the closure frame.

[0013] Furthermore, the reinforcing mechanism further includes a lifting bar, which is rotatably connected to an end of the piston rod remote from the piston head, and a sliding frame is fixedly connected to an end of the lifting bar remote from the piston rod, the sliding frame is slidably connected to the inside of the lifting chute, and a reinforcing frame is fixedly connected to the outer walls of the two sliding frames, and the side of the reinforcing frame closer to the main body abuts the outer wall of the closing frame.

[0014] Furthermore, an outlet mechanism is provided on the outer wall of the outer water pipe, and the outlet mechanism includes an outer chamber piston ring, which is slidably connected between the outer water pipe and the pressure reducing pipe. Three connecting extension frames are fixedly connected to the end of the outer wall of the outer chamber piston ring close to the body, and the three connecting extension frames are slidably connected to the inside of the three pushing slide holes, respectively. A connecting tension rod is rotatably connected to the inside of each of the three connecting extension frames. A pressure spring is fixedly connected between the connecting extension frame and the side of the outer water pipe close to the body, and a sliding plate is rotatably connected to the end of the connecting tension rod remote from the connecting extension frame, and the sliding plate is slidably connected to the outer wall of the slide bar.

[0015] Furthermore, a push-down extension bar is fixedly connected to the side of the sliding plate away from the connecting tension bar, the push-down bar is rotatably connected to the outer wall of the rotating connecting frame, the outer wall of the push-down bar abuts the bottom of the push-down extension bar, two lift sliding hole bars are fixedly connected to the end of the push-down bar close to the rotating connecting frame, stopper frames are slidably connected inside the two lift sliding hole bars, and a seal ring is inserted into the side corresponding to the pressure reduction drain hole of the outer water pipe, and the stopper frame abuts the outer wall of the seal ring.

[0016] A multi-stage groundwater purification device and method for purifying groundwater in sandy areas, comprising the following steps:

[0017] S1: Connect to the underground water supply pipe via the water inlet, continue to inject water into the main body, and filter the water through the cartridge inside the main body.

[0018] S2: Regarding the water injected into the main body, if the internal water pressure suddenly increases due to various factors, when groundwater is filled in the space above the cartridge inside the main body, the groundwater will slide the two piston rods outward inside the vacuum pipes, pressing against the pressure springs, and the groundwater will enter the two vacuum pipes.

[0019] S3: When the piston rod moves inside the vacuum tube due to the water pressure inside the main body, the lifting bar rotates at the end away from the piston rod, reducing the angle between the lifting bar and the piston rod, pulling the sliding frame and causing it to slide up inside the lifting chute, thereby lifting the reinforcing frame.

[0020] S4: As the water pressure inside the main body continues to increase, the piston head at the end of the piston rod closest to the main body is pressed to a position inside the vacuum pipe at the end farthest from the main body, so that the outer water pipe is connected to the vacuum pipe and the inside of the main body through the drain hole. Water is poured between the outer water pipe and the vacuum pipe, and the outer chamber piston ring is pressed to slide the space between the outer water pipe and the vacuum pipe toward the main body, compressing the pressure spring, thereby further increasing the buffering against the water pressure inside the main body and quickly discharging excess water from the main body without increasing the water pressure. [Effects of the Invention]

[0021] The present invention has the following beneficial effects.

[0022] (1) This invention is connected to a groundwater supply pipe through a water inlet. Water is continuously injected into the main body, filtered through the cartridge inside the main body, and the filtered groundwater falls to the bottom of the main body and flows out through a drain outlet. If the water pressure inside the main body increases suddenly due to various factors, the space inside the main body above the cartridge will be filled with groundwater, causing the two piston rods to slide outward inside the pressure reducing pipes and press the pressure springs. The groundwater enters the two pressure reducing pipes and increases the water storage space above the filter elements inside the main body, thereby reducing the groundwater pressure inside the main body and reducing the probability of the filter elements inside the pressure reducing pipes being subjected to excessive pressure and bursting or being damaged. This improves the filtering effect of the filter elements and reduces wear on the main body and internal parts of the pressure reducing pipes when the main body is subjected to high water pressure for a long period of time, thereby improving the service life of the device, reducing the frequency of maintenance and replacement of the device, and further reducing the maintenance and operating costs of the purification device.

[0023] (2) In this invention, when the piston rod moves inside the pressure reducing pipe due to the water pressure inside the main body, the lifting bar at the end far from the piston rod rotates, reducing the angle between the lifting bar and the piston rod, thereby pulling the sliding frame and sliding it up inside the lifting chute, thereby raising the reinforcing frame and abutting it against the outer wall of the closure frame, increasing the tightness of the connection between the closure frame and the main body. As the water pressure inside the main body continues to increase, the piston head at the end of the piston rod close to the main body is pressed to the position far from the main body inside the pressure reducing pipe, thereby connecting the outer water pipe to the pressure reducing pipe and the main body through the drain hole. Water enters between the outer water pipe and the pressure reducing pipe, sliding the outer chamber piston ring toward the main body between the outer water pipe and the pressure reducing pipe and compressing the pressure spring. This further increases the buffering effect against the internal water pressure of the main body instead of using a pressure reducing valve, quickly discharging excess water from the main body without increasing water pressure, reducing unnecessary waste of groundwater, and maintaining the water pressure inside the main body within a specified range.

[0024] (3) In the sliding process of the outer piston ring, the connecting extension frame is synchronously slid inside the pushing slide hole, so that the connecting tension bar rotates on the connecting extension frame, and the angle between the connecting tension bar and the connecting extension frame gradually decreases according to the movement range of the outer piston ring, so that the sliding plate can slide downward on the slide bar. At the same time as the pushing extension bar is lowered, the pushing bar is pressed down, and the end of the pushing bar away from the pushing extension bar rotates on the rotating connecting frame, so that the lifting slide hole bar rises and slides on the lifting slide hole bar via the stopper frame, so that the stopper frame slides upward inside the insertion hole, and the stopper frame gradually separates from the sealing ring. When the water pressure inside the main body exceeds the specified range value, the stopper frame completely detaches from the seal ring, and when the stopper force from the stopper frame is no longer applied to the seal ring, the pressure reduction drain hole is unblocked, causing the water between the pressure reduction pipe and the outer water pipe to spray out through the pressure reduction drain hole, allowing the water to quickly escape from inside the main body.The water sprayed out from the side can also increase the distance that groundwater sprays out, which can serve to notify the operator and increase the practicality of the device.

[0025] Of course, any product embodying the present invention need not necessarily achieve all of the above advantages simultaneously. [Brief explanation of the drawings]

[0026] In order to more clearly describe the technical aspects of the embodiments of the present invention, the following briefly describes the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor.

[0027] [Figure 1] 1 is an overall configuration diagram of the present invention. [Figure 2] FIG. 2 is a partial cross-sectional view of the present invention. [Figure 3] FIG. 2 is a diagram showing the configuration of the main body of the present invention. [Figure 4] FIG. 2 is a diagram illustrating the configuration of a filter element mechanism according to the present invention. [Figure 5] FIG. 2 is a diagram illustrating the configuration of a reinforcing mechanism according to the present invention. [Figure 6] FIG. 1 is a block diagram of an outlet mechanism of the present invention. [Figure 7] FIG. 4 is an enlarged view of a portion A in FIG. [Figure 8] FIG. 7 is an enlarged view of a portion B in FIG. [Figure 9] 1 is a method diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, the technical aspects of the embodiments of the present invention will be clearly and completely described in connection with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and are not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present invention.

[0029] [Example 1] Referring to Figures 1 to 9, the present invention provides a multi-stage groundwater purification device and purification method for use in sandy areas, which includes a main body 1 and two side panels 101, each of which is fixedly connected to the outer wall of the main body 1, and further includes a pressure reducing mechanism 2 and a reinforcing mechanism 4.

[0030] The pressure reduction mechanism 2 is provided on the outer wall of the side plate 101. The pressure reduction mechanism 2 includes two pressure reduction pipes 201. The two pressure reduction pipes 201 are fixedly connected to the outer walls of the two side plates 101, respectively. An outer water pipe 203 is fixedly connected to two locations on the outer walls of the two side plates 101, corresponding to the two pressure reduction pipes 201. A plurality of drain holes 202 are opened in the outer wall of the pressure reduction pipe 201 at an end remote from the main body 1. The drain holes 202 are provided in the outer wall of the pressure reduction pipe 201. The pressure reduction pipe 201 communicates with the main body 1. Three push slide holes 204 are opened in the outer wall of the outer water pipe 203 at an end close to the main body 1. A slide bar 205 is fixedly connected to the outer wall of the outer water pipe 203. An extension plate 206 is fixedly connected to an end remote from the push slide hole 204 on the outer wall of the outer water pipe 203. A rotary connecting frame 207 is fixedly connected to the end of the top of the extension plate 206 closest to the slide bar 205. An insertion hole 208 is drilled in the end of the top of the extension plate 206 away from the rotary connecting frame 207. A pressure reduction drain hole 209 is opened in the outer water pipe 203 on the side away from the main body 1, and the piston head of the piston rod 401 at the end close to the main body 1 is pressed to the position inside the pressure reduction pipe 201 at the end away from the main body 1, thereby connecting the outer water pipe 203 to the pressure reduction pipe 201 and the inside of the main body 1 via the drain hole 202. Water enters between the outer water pipe 203 and the pressure reduction pipe 201, sliding the outer chamber piston ring 501 toward the main body 1 between the outer water pipe 203 and the pressure reduction pipe 201 and compressing the pressure spring 504. This further increases the buffering effect against the internal water pressure of the main body 1 in place of a pressure reducing valve, quickly draining excess water from the main body 1 without increasing the water pressure, and maintaining the water pressure inside the main body 1 within a specified range.

[0031] The reinforcement mechanism 4 is provided inside the decompression pipe 201. The reinforcement mechanism 4 includes a piston rod 401. The piston rod 401 is slidably connected inside the decompression pipe 201. A piston head is provided on the side of the piston rod 401 closer to the main body 1, and a pressure spring 402 is fixedly connected between the piston head and the side of the decompression pipe 201 farther from the main body 1. When groundwater fills the space above the cartridge 301 inside the main body 1, the groundwater slides the two piston rods 401 outward inside the decompression pipe 201 and presses the pressure spring 402. The groundwater enters the two decompression pipes 201, increasing the water storage space above the filter element inside the main body 1 and thereby reducing the water pressure of the groundwater inside the main body 1. The reinforcement mechanism 4 further includes a lifting rib 403. The lifting rib 403 is rotatably connected to the end of the piston rod 401 farther from the piston head. A sliding frame 404 is fixedly connected to the end of the lifting bar 403 remote from the piston rod 401. The sliding frame 404 is slidably connected inside the lifting chute 103. A reinforcing frame 405 is fixedly connected to the outer walls of the two sliding frames 404. The side of the reinforcing frame 405 closer to the main body 1 abuts against the outer wall of the closure frame 302. When the piston rod 401 moves inside the decompression pipe 201 due to the water pressure inside the main body 1, the end remote from the piston rod 401 rotates the lifting bar 403, reducing the angle between the lifting bar 403 and the piston rod 401. This pulls the sliding frame 404, causing it to slide up inside the lifting chute 103, which in turn raises the reinforcing frame 405 and abuts against the outer wall of the closure frame 302, increasing the tightness of the connection between the closure frame 302 and the main body 1.

[0032] A filter element mounting port 102 is opened in the outer wall of the main body 1. Threaded connection grooves are opened at the top and bottom ends of the filter element mounting port 102 on the outer wall of the main body 1. An ascent chute 103 is opened in the outer wall of the side panel 101 at the end away from the pressure reducing pipe 201. A support frame 104 is fixedly connected to the bottom of the main body 1, a water inlet 105 is fixedly connected to the top of the main body 1, and a drain outlet 106 is fixedly connected to the bottom of the main body 1. Water is continuously poured into the main body 1 via the water inlet 105, and filtered through cartridge 301 inside the main body 1. The filtered groundwater falls to the bottom of the main body 1 and flows out through drain outlet 106.

[0033] A filter element mechanism 3 is provided inside the filter element mounting port 102. The filter element mechanism 3 includes a cartridge 301. The cartridge 301 is inserted into the filter element mounting port 102. A closure frame 302 is fixedly connected to the outer wall of the cartridge 301. Screw connection hole blocks 304 are fixedly connected to two locations on the outer wall of the closure frame 302 that correspond to the two screw connection grooves, and two handles 303 are fixedly connected to the outer wall of the closure frame 302.

[0034] An outlet mechanism 5 is provided on the outer wall of the outer water pipe 203. The outlet mechanism 5 includes an outer chamber piston ring 501. The outer chamber piston ring 501 is slidably connected between the outer water pipe 203 and the vacuum pipe 201. Three connecting extension frames 502 are fixedly connected to the end of the outer wall of the outer chamber piston ring 501 close to the main body 1. The three connecting extension frames 502 are slidably connected to the inside of the three pushing slide holes 204, respectively. A connecting tension bar 503 is rotatably connected to the inside of each of the three connecting extension frames 502. A pressure spring 504 is fixedly connected between the connecting extension frame 502 and the side of the outer water pipe 203 close to the main body 1. A sliding plate 505 is rotatably connected to the end of the connecting tension bar 503 remote from the connecting extension frame 502. The sliding plate 505 is slidably connected to the outer wall of the slide bar 205. A push-down extension bar 506 is fixedly connected to the sliding plate 505 on the side away from the connecting tension bar 503. A push-down bar 507 is rotatably connected to the outer wall of the rotating connecting frame 207. The outer wall of the push-down bar 507 abuts the bottom of the push-down extension bar 506, and two lift sliding hole bars 508 are fixedly connected to the end of the push-down bar 507 close to the rotating connecting frame 207. Stopper frames 509 are slidably connected to the interiors of the two lift sliding hole bars 508. A seal ring 510 is inserted into the outer water pipe 203 on the side corresponding to the pressure reduction drain hole 209. The stopper frame 509 abuts against the outer wall of the seal ring 510.During the sliding process of the outer piston ring 501, the connecting extension frame 502 slides synchronously inside the pushing slide hole 204, causing the connecting tension bar 503 to rotate on the connecting extension frame 502, and the angle between the connecting tension bar 503 and the connecting extension frame 502 gradually decreases according to the movement width of the outer piston ring 501, thereby allowing the sliding plate 505 to slide downward on the slide bar 205, and while the pushing extension bar 506 is being lowered, the pushing bar 507 is pushed down, and the end of the pushing bar 507 away from the pushing extension bar 506 is rotated on the rotating connecting frame 207, causing the lifting slide hole bar 508 to rise and slide on the lifting slide hole bar 508 via the stopper frame 509, causing the stopper frame 509 to slide upward inside the insertion hole 208, and the stopper frame 509 to gradually release from the sealing ring 510. When the water pressure inside the main body 1 exceeds a specified range value, the stopper frame 509 completely separates from the seal ring 510, and when the stopper force of the stopper frame 509 is no longer applied to the seal ring 510, the pressure reduction drain hole 209 is unblocked, and the water between the pressure reduction pipe 201 and the outer water pipe 203 is sprayed out through the pressure reduction drain hole 209.

[0035] During use, the device is connected to a groundwater supply pipe via water inlet 105, and water is continuously poured into main body 1. The water is filtered through cartridge 301 inside main body 1, and the filtered groundwater falls to the bottom of main body 1 and flows out through outlet 106. If the internal water pressure of the water poured into main body 1 suddenly increases due to various factors, and the space inside main body 1 above cartridge 301 is filled with groundwater, the groundwater will slide two piston rods 401 outward within pressure reduction pipes 201, pressing against pressure springs 402, and the groundwater will enter the two pressure reduction pipes 201, increasing the water storage space above the filter elements inside main body 1. This reduces the groundwater pressure inside main body 1 and reduces the likelihood of the filter elements inside pressure reduction pipes 201 being subjected to excessive pressure, causing them to burst or be damaged.

[0036] [Example 2] As shown in Figures 1 to 9, during use, when the piston rod 401 moves inside the decompression tube 201 due to the water pressure inside the main body 1, the lifting bar 403 at the end away from the piston rod 401 rotates, reducing the angle between the lifting bar 403 and the piston rod 401, thereby pulling the sliding frame 404 and causing it to slide up inside the lifting chute 103, thereby lifting the reinforcing frame 405 and abutting it against the outer wall of the closing frame 302, thereby increasing the tightness of the connection between the closing frame 302 and the main body 1. As the water pressure inside the body 1 continues to increase, the piston head at the end of the piston rod 401 closest to the body 1 is pressed to a position inside the pressure reducing pipe 201 at the end farther from the body 1, thereby connecting the outer water pipe 203 to the pressure reducing pipe 201 and the inside of the body 1 via the drain hole 202, allowing water to enter between the outer water pipe 203 and the pressure reducing pipe 201, causing the outer chamber piston ring 501 to slide toward the body 1 between the outer water pipe 203 and the pressure reducing pipe 201 and compressing the pressure spring 504. This further increases the buffering effect against the water pressure inside the body 1 in place of the pressure reducing valve, quickly discharging excess water from the body 1 without increasing the water pressure, and maintaining the water pressure inside the body 1 within a specified range.

[0037] During the sliding process of the outer piston ring 501, the connecting extension frame 502 slides synchronously inside the pushing slide hole 204, causing the connecting tension bar 503 to rotate on the connecting extension frame 502, and the angle between the connecting tension bar 503 and the connecting extension frame 502 gradually decreases according to the movement width of the outer piston ring 501, thereby allowing the sliding plate 505 to slide downward on the slide bar 205, and while the pushing extension bar 506 is being lowered, the pushing bar 507 is pushed down, and the end of the pushing bar 507 away from the pushing extension bar 506 is rotated on the rotating connecting frame 207, causing the lifting slide hole bar 508 to rise and slide on the lifting slide hole bar 508 via the stopper frame 509, causing the stopper frame 509 to slide upward inside the insertion hole 208, and the stopper frame 509 to gradually release from the sealing ring 510. When the water pressure inside the main body 1 exceeds the specified range value, the stopper frame 509 completely detaches from the seal ring 510, and when the stopper force of the stopper frame 509 is no longer applied to the seal ring 510, the pressure reduction drain hole 209 is unblocked, and the water between the pressure reduction pipe 201 and the outer water pipe 203 is sprayed out through the pressure reduction drain hole 209, allowing the inside of the main body 1 to quickly escape, and the water sprayed out from the side can increase the distance of groundwater spray and can serve to notify the worker.

[0038] A multi-stage groundwater purification device and method for purifying groundwater in sandy areas, comprising the following steps:

[0039] S1: Connect to the underground water supply pipe via the water inlet 105, continue to inject water into the main body 1, and filter the water through the cartridge 301 inside the main body 1.

[0040] S2: If the internal water pressure of the water injected into the main body 1 suddenly increases due to various factors, when groundwater is filled in the space above the cartridge 301 inside the main body 1, the groundwater will slide the two piston rods 401 outward inside the pressure reduction pipes 201, pressing against the pressure springs 402, and the groundwater will enter the two pressure reduction pipes 201.

[0041] S3: When the piston rod 401 moves inside the decompression pipe 201 due to the water pressure inside the main body 1, the lifting bar 403 rotates at the end away from the piston rod 401, reducing the angle between the lifting bar 403 and the piston rod 401, pulling the sliding frame 404 and causing it to slide up inside the lifting chute 103, thereby lifting the reinforcing frame 405.

[0042] S4: As the water pressure inside the main body 1 continues to increase, the piston head at the end of the piston rod 401 closest to the main body 1 is pressed to a position inside the vacuum pipe 201 at the end farthest from the main body 1, so that the outer water pipe 203 is connected to the vacuum pipe 201 and the inside of the main body 1 through the drain hole 202, water is poured between the outer water pipe 203 and the vacuum pipe 201, the outer chamber piston ring 501 is pressed to slide between the outer water pipe 203 and the vacuum pipe 201 toward the main body 1, and the pressure spring 504 is compressed, thereby further increasing the buffering against the internal water pressure of the main body 1 and quickly discharging excess water from the main body 1 without increasing the water pressure.

[0043] The preferred embodiments of the present invention disclosed above are merely intended to facilitate the description of the present invention. The preferred embodiments do not detail all the details, nor are they intended to limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made based on the contents of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims, the full scope of which is defined below, and equivalents thereof.

[0044] (Addendum) (Appendix 1) A multi-stage groundwater purification device for use in sandy areas, comprising a main body (1) and two side panels (101) fixedly connected to the outer wall of the main body (1), a pressure reducing mechanism (2) and a reinforcement mechanism (4), The pressure reducing mechanism (2) is provided on the outer wall of the side plate (101) and includes two pressure reducing pipes (201), the two pressure reducing pipes (201) are fixedly connected to the outer walls of the two side plates (101), two outer water pipes (203) are fixedly connected to two locations on the outer walls of the two side plates (101) corresponding to the two pressure reducing pipes (201), and a plurality of drain holes (202) are opened in the outer walls of the pressure reducing pipes (201) at ends remote from the main body (1). The reinforcing mechanism (4) is provided inside the decompression pipe (201), and the reinforcing mechanism (4) includes a piston rod (401), the piston rod (401) is slidably connected inside the decompression pipe (201), a piston head is provided on a side of the piston rod (401) close to the main body (1), and a pressure spring (402) is fixedly connected between the piston head and a side of the decompression pipe (201) remote from the main body (1); A filter element mounting port (102) is provided in the outer wall of the main body (1), threaded grooves are provided at the top and bottom ends of the filter element mounting port (102) in the outer wall of the main body (1), an ascent chute (103) is provided at the end of the outer wall of the side plate (101) away from the decompression pipe (201), a support frame (104) is fixedly connected to the bottom of the main body (1), a water supply port (105) is fixedly connected to the top of the main body (1), and a drain port (106) is fixedly connected to the bottom of the main body (1). The drain hole (202) is provided on the outer wall of the vacuum pipe (201), the vacuum pipe (201) is connected to the main body (1), three push slide holes (204) are opened at the end of the outer wall of the outer water pipe (203) close to the main body (1), and a slide bar (205) is fixedly connected to the outer wall of the outer water pipe (203). A multi-stage groundwater purification device for use in sandy areas, characterized in that an extension plate (206) is fixedly connected to the end of the outer wall of the outer water pipe (203) remote from the push-and-slide hole (204), a rotating connecting frame (207) is fixedly connected to the end of the top of the extension plate (206) close to the slide bar (205), an insertion hole (208) is drilled in the end of the top of the extension plate (206) remote from the rotating connecting frame (207), and a pressure reduction drain hole (209) is opened in the outer water pipe (203) on the side remote from the main body (1).

[0045] (Appendix 2) 10. The multi-stage groundwater purification device for sandy areas according to claim 1, wherein a filter element mechanism (3) is provided inside the filter element mounting port (102), the filter element mechanism (3) includes a cartridge (301), the cartridge (301) is inserted into the filter element mounting port (102), a closing frame (302) is fixedly connected to an outer wall of the cartridge (301), screw connection hole blocks (304) are fixedly connected to two locations on the outer wall of the closing frame (302) corresponding to two screw connection grooves, and two handles (303) are fixedly connected to the outer wall of the closing frame (302).

[0046] (Appendix 3) The multi-stage groundwater purification apparatus for sandy areas described in Appendix 2, characterized in that the reinforcement mechanism (4) further includes a lifting bar (403), the lifting bar (403) is rotatably connected to an end of the piston rod (401) remote from the piston head, a sliding frame (404) is fixedly connected to an end of the lifting bar (403) remote from the piston rod (401), the sliding frame (404) is slidably connected inside the lifting chute (103), a reinforcing frame (405) is fixedly connected to the outer walls of the two sliding frames (404), and the side of the reinforcing frame (405) closer to the main body (1) abuts the outer wall of the closing frame (302).

[0047] (Appendix 4) An outlet mechanism (5) is provided on the outer wall of the outer water pipe (203), and the outlet mechanism (5) includes an outer chamber piston ring (501), which is slidably connected between the outer water pipe (203) and the pressure reducing pipe (201). Three connecting extension frames (502) are fixedly connected to the end of the outer wall of the outer chamber piston ring (501) close to the main body (1). The three connecting extension frames (502) are slidably connected to the insides of the three push slide holes (204), respectively. The multi-stage groundwater purification device for sandy areas described in Appendix 3, characterized in that a connecting tension rod (503) is rotatably connected to the inside of each of the connecting extension frames (502), a pressure spring (504) is fixedly connected between the connecting extension frame (502) and the side of the outer water pipe (203) close to the main body (1), and a sliding plate (505) is rotatably connected to the end of the connecting tension rod (503) away from the connecting extension frame (502), and the sliding plate (505) is slidably connected to the outer wall of the slide bar (205).

[0048] (Appendix 5) 5. The multi-stage groundwater purification device for sandy areas according to claim 4, wherein a push-down extension rod (506) is fixedly connected to the sliding plate (505) at the side away from the connecting tension rod (503), a push-down rod (507) is rotatably connected to the outer wall of the rotating connecting frame (207), the outer wall of the push-down rod (507) abuts the bottom of the push-down extension rod (506), two lift sliding hole rods (508) are fixedly connected to the end of the push-down rod (507) close to the rotating connecting frame (207), stopper frames (509) are slidably connected inside the two lift sliding hole rods (508), a seal ring (510) is inserted into the side of the outer water pipe (203) corresponding to the pressure reduction drain hole (209), and the stopper frame (509) abuts the outer wall of the seal ring (510).

[0049] (Appendix 6) 10. A method for purifying sandy areas using the multi-stage groundwater purification system according to claim 5, comprising the steps of: S1: Connect to the underground water supply pipe via the water inlet (105), continue to inject water into the main body (1), and filter the water through the cartridge (301) inside the main body (1). S2: When the water pressure inside the main body (1) suddenly increases due to various factors, if groundwater fills the space above the cartridge (301) inside the main body (1), the groundwater will slide the two piston rods (401) outward inside the pressure reducing pipes (201), pressing the pressure springs (402), and the groundwater will enter the two pressure reducing pipes (201). S3: When the piston rod (401) moves inside the vacuum pipe (201) due to the water pressure inside the main body (1), the lifting bar (403) rotates at the end farther from the piston rod (401), reducing the angle between the lifting bar (403) and the piston rod (401), pulling the sliding frame (404) and causing it to slide up inside the lifting chute (103), and raising the reinforcing frame (405). S4: As the water pressure inside the main body (1) continues to increase, the piston head at the end of the piston rod (401) closest to the main body (1) is pressed to a position inside the pressure reduction pipe (201) at the end farthest from the main body (1), so that the outer water pipe (203) is connected to the pressure reduction pipe (201) and the inside of the main body (1) via the drain hole (202). Water is poured between the outer water pipe (203) and the pressure reduction pipe (201), and the outer chamber piston ring (501) is pressed to slide between the outer water pipe (203) and the pressure reduction pipe (201) toward the main body (1), compressing the pressure spring (504). This further increases the buffering effect against the internal water pressure of the main body (1), and excess water is quickly discharged from the main body (1) without increasing the water pressure. [Explanation of symbols]

[0050] In the drawings, the list of parts represented by each reference numeral is as follows:

[0051] 1: main body, 101: side plate, 102: filter element mounting port, 103: rising chute, 104: support frame, 105: water supply port, 106: drain port, 2: pressure reduction mechanism, 201: pressure reduction pipe, 202: drain hole, 203: outer water pipe, 204: push slide hole, 205: slide bar, 206: extension plate, 207: rotating connection frame, 208: insertion hole, 209: pressure reduction drain hole, 3: filter element mechanism, 301: cartridge, 302: closing frame, 30 3: Handle, 304: Screw connection hole block, 4: Reinforcement mechanism, 401: Piston rod, 402: Pressure spring, 403: Pulling thread, 404: Sliding frame, 405: Reinforcement frame, 5: Outlet mechanism, 501: Outer chamber piston ring, 502: Connecting extension frame, 503: Connecting tension thread, 504: Pressure spring, 505: Sliding plate, 506: Pushing extension thread, 507: Pushing thread, 508: Lift sliding hole thread, 509: Stopper frame, 510: Seal ring.

Claims

1. A multi-stage groundwater purification device for use in sandy areas, comprising a main body (1) and two side plates (101) fixedly connected to the outer wall of the main body (1), a pressure reducing mechanism (2) and a reinforcement mechanism (4), The pressure reducing mechanism (2) is provided on the outer wall of the side plate (101) and includes two pressure reducing pipes (201), the two pressure reducing pipes (201) are fixedly connected to the outer walls of the two side plates (101), two outer water pipes (203) are fixedly connected to two locations on the outer walls of the two side plates (101) corresponding to the two pressure reducing pipes (201), and a plurality of drain holes (202) are opened at the ends of the outer walls of the pressure reducing pipes (201) away from the main body (1). The reinforcing mechanism (4) is provided inside the vacuum pipe (201), and the reinforcing mechanism (4) includes a piston rod (401), the piston rod (401) is slidably connected inside the vacuum pipe (201), a piston head is provided on a side of the piston rod (401) close to the main body (1), and a pressure spring (402) is fixedly connected between the piston head and a side of the vacuum pipe (201) remote from the main body (1); A filter element mounting port (102) is provided in the outer wall of the main body (1), threaded connection grooves are provided at the upper and lower ends of the filter element mounting port (102) on the outer wall of the main body (1), an ascent chute (103) is provided at the end of the outer wall of the side plate (101) away from the decompression pipe (201), a support frame (104) is fixedly connected to the bottom of the main body (1), a water supply port (105) is fixedly connected to the top of the main body (1), and a drain port (106) is fixedly connected to the bottom of the main body (1). The drain hole (202) is provided on the outer wall of the vacuum pipe (201), the vacuum pipe (201) is connected to the main body (1), three push-and-slide holes (204) are opened at the end of the outer wall of the outer water pipe (203) close to the main body (1), and a slide bar (205) is fixedly connected to the outer wall of the outer water pipe (203). A multi-stage groundwater purification device for use in sandy areas, characterized in that an extension plate (206) is fixedly connected to the end of the outer wall of the outer water pipe (203) remote from the push-and-slide hole (204), a rotating connecting frame (207) is fixedly connected to the end of the top of the extension plate (206) close to the slide bar (205), an insertion hole (208) is drilled at the end of the top of the extension plate (206) remote from the rotating connecting frame (207), and a pressure reduction drain hole (209) is opened on the side of the outer water pipe (203) remote from the main body (1).

2. 2. The multi-stage groundwater purification device for sandy areas according to claim 1, wherein a filter element mechanism (3) is provided inside the filter element mounting port (102), the filter element mechanism (3) includes a cartridge (301), the cartridge (301) is inserted into the filter element mounting port (102), a closure frame (302) is fixedly connected to an outer wall of the cartridge (301), screw connection hole blocks (304) are fixedly connected to two locations corresponding to two screw connection grooves on the outer wall of the closure frame (302), and two handles (303) are fixedly connected to the outer wall of the closure frame (302).

3. 3. The multi-stage groundwater purification device for sandy areas according to claim 2, wherein the reinforcement mechanism (4) further comprises a lifting rod (403), the lifting rod (403) is pivotally connected to an end of the piston rod (401) remote from the piston head, a sliding frame (404) is fixedly connected to an end of the lifting rod (403) remote from the piston rod (401), the sliding frame (404) is slidably connected to the inside of the lifting chute (103), a reinforcing frame (405) is fixedly connected to outer walls of the two sliding frames (404), and a side of the reinforcing frame (405) close to the main body (1) abuts against the outer wall of the closure frame (302).

4. An outlet mechanism (5) is provided on the outer wall of the outer water pipe (203), and the outlet mechanism (5) includes an outer chamber piston ring (501), which is slidably connected between the outer water pipe (203) and the vacuum pipe (201). Three connecting extension frames (502) are fixedly connected to the end of the outer wall of the outer chamber piston ring (501) close to the main body (1). The three connecting extension frames (502) are slidably connected inside the three push slide holes (204), respectively.

4. The multi-stage groundwater purification device for sandy areas according to claim 3, characterized in that: a connecting tension rod (503) is rotatably connected to the inside of each of the extension frames (502); a pressure spring (504) is fixedly connected between the connecting extension frame (502) and the side of the outer water pipe (203) close to the main body (1); a sliding plate (505) is rotatably connected to the end of the connecting tension rod (503) remote from the connecting extension frame (502); and the sliding plate (505) is slidably connected to the outer wall of the slide bar (205).

5. 5. The multi-stage groundwater purification device for sandy areas according to claim 4, characterized in that: a push-down extension bar (506) is fixedly connected to the sliding plate (505) at the side away from the connecting tension bar (503); a push-down bar (507) is rotatably connected to the outer wall of the rotating connecting frame (207), the outer wall of the push-down bar (507) abuts the bottom of the push-down extension bar (506); two lift sliding holes (508) are fixedly connected to the end of the push-down bar (507) close to the rotating connecting frame (207); stopper frames (509) are slidably connected to the two lift sliding holes (508); a seal ring (510) is inserted into the side corresponding to the pressure reduction drain hole (209) of the outer water pipe (203), and the stopper frame (509) abuts the outer wall of the seal ring (510).

6. 6. A method for purifying groundwater in a sandy area using the multi-stage groundwater purification device according to claim 5, comprising the following steps: S1: Connect to the groundwater supply pipe via the water inlet (105), continue to inject water into the main body (1), and filter the water through the cartridge (301) inside the main body (1). S2: If the internal water pressure of the water injected into the main body (1) suddenly increases due to various factors, when groundwater fills the space above the cartridge (301) inside the main body (1), the groundwater causes the two piston rods (401) to slide outward inside the vacuum pipes (201), pressing against the pressure springs (402), and the groundwater enters the two vacuum pipes (201). S3: When the piston rod (401) moves inside the vacuum pipe (201) due to the water pressure inside the main body (1), the lifting bar (403) rotates at the end farther from the piston rod (401), reducing the angle between the lifting bar (403) and the piston rod (401), pulling the sliding frame (404) and causing it to slide up inside the lifting chute (103), and raising the reinforcing frame (405). S4: As the water pressure inside the main body (1) continues to increase, the piston head at the end of the piston rod (401) closest to the main body (1) is pressed to a position inside the vacuum pipe (201) at the end farther from the main body (1), so that the outer water pipe (203) is connected to the vacuum pipe (201) and the inside of the main body (1) via the drain hole (202). Water is poured between the outer water pipe (203) and the vacuum pipe (201), and the outer chamber piston ring (501) is pressed to slide between the outer water pipe (203) and the vacuum pipe (201) toward the main body (1), compressing the pressure spring (504). This further increases the buffering effect against the internal water pressure of the main body (1), and excess water is quickly discharged from the main body (1) without increasing the water pressure.

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