A hybrid pipe and method for deep well dewatering

Abstract

The present invention discloses a hybrid pipe and method for deep well dewatering, which belongs to the field of deep well dewatering equipment. The pipe comprises an outer sleeve, an inner sleeve, and a connecting pipe. The inner sleeve is detachably mounted inside the outer sleeve. At least one through hole is provided on the outer wall of the inner sleeve. The interior of the inner sleeve communicates with the interior of the outer sleeve through the through hole. A blocking block is mounted on the connecting pipe. The connecting pipe passes through the entire blocking block. The blocking block is slidably mounted inside the inner sleeve, and the upper end of the connecting pipe slides through the upper end face of the outer sleeve. A vent pipe is provided on the outer wall of the inner sleeve. A plurality of exchange holes are provided on the top of the outer sleeve. The vent pipe extends through one of the exchange holes to the outside of the outer sleeve. Through the above structure, it is possible to conveniently switch between ordinary dewatering and vacuum dewatering in a well hole, thereby reducing the number of pipe wells, reducing construction costs, and accelerating construction progress.

Description

Technical Field

[0001] The present invention relates to the technical field of deep well dewatering equipment, and in particular to a hybrid pipeline and method for deep well dewatering. Background Art

[0002] Deep well point dewatering is a method of burying a well pipe deeper than the base around a deep foundation pit, so that groundwater is pumped out by a submersible electric pump set in the well pipe, so that the groundwater level is lower than the bottom of the pit. At present, when dewatering deep well points, it is necessary to first open multiple well holes on the ground and then insert ordinary dewatering well pipes and vacuum dewatering well pipes into the well holes respectively. When pumping water, ordinary dewatering well pipes are used first. When the groundwater decreases and the submersible pump cannot pump water normally, it is necessary to use vacuum dewatering well pipes. Then, negative pressure is generated in the vacuum dewatering well pipes and then the groundwater is pumped out. However, the current vacuum dewatering well pipes and ordinary dewatering well pipes cannot be mixed and used, and the two types of well pipes cannot be directly converted. During construction, multiple well holes can only be drilled on the ground for use by the two types of well pipes. This method not only increases costs but also slows down construction progress. Therefore, the present invention provides a hybrid pipeline for deep well dewatering to solve the above-mentioned problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to solve the problems existing in the above-mentioned background technology and provide a hybrid pipeline for deep well dewatering, through which ordinary dewatering and vacuum dewatering can be converted in one well hole.

[0004] Another technical problem to be solved by the present invention is to provide a method for performing ordinary dewatering and vacuum dewatering by using the hybrid pipeline for deep well dewatering.

[0005] In order to achieve the above-mentioned technical features, the purpose of the present invention is achieved as follows: a mixed pipe for deep well dewatering, comprising an outer sleeve, an inner sleeve, and a connecting pipe, the inner sleeve being installed inside the outer sleeve, the lower end of the inner sleeve extending to the outside of the outer sleeve, the outer wall of the inner sleeve being provided with at least one through hole, the interior of the inner sleeve being communicated with the interior of the outer sleeve through the through hole, the connecting pipe being provided with a sealing block, the sealing block being slidably installed inside the inner sleeve, and the upper end of the connecting pipe slidingly passing through the upper end surface of the outer sleeve, the sealing block being able to seal the through hole by sliding the connecting pipe, the outer wall of the inner sleeve being provided with a vent pipe, the outer sleeve being provided with a plurality of exchange holes, the vent pipe extending to the outside of the outer sleeve through one of the exchange holes.

[0006] The outer wall of the blocking block is provided with an installation groove corresponding to the through hole, a blocking plate is installed in the installation groove, and the blocking plate is slidably connected to the blocking block, and a reset spring is fixedly connected to the blocking block on one side of the blocking plate close to the blocking block.

[0007] One end of the blocking plate close to the blocking block is symmetrically fixedly connected to a limiting rod, and insertion holes are symmetrically opened inside the installation groove, and the limiting rod is slidably inserted into the insertion holes.

[0008] A sealing groove is provided on the side wall of the through hole, an inclined surface is provided on the top of the through hole, the upper end of the sealing plate is inclined, and the inclined surface is adapted to the upper end of the sealing plate.

[0009] The sealing plate is provided with an installation opening inside, the installation opening corresponds to the sealing groove, a second magnet is slidably connected in the installation opening, a rubber pad is provided at the end of the second magnet away from the sealing block, a first magnet is installed on the inner wall of the outer sleeve so as to rotate along the circumference, the upper end of the first magnet is fixedly connected to a connecting rod, an adjustment window is provided at the upper end of the outer sleeve, the connecting rod passes through the upper end of the outer sleeve through the adjustment window, the connecting rod is located at the upper end of the outer sleeve and is fixedly connected to a pushing block, the connecting rods are connected by a rotating ring, and the rotating ring is connected to the outer sleeve for damping rotation.

[0010] A limiting disk is fixedly installed on the connecting pipe, and the limiting disk is located on the upper part of the outer sleeve. When the limiting disk contacts the top of the outer sleeve, the blocking block blocks the through hole.

[0011] A liquid level measuring device is also fixedly connected to the outer wall of the outer sleeve, and the liquid level of the groundwater can be measured by the liquid level measuring device.

[0012] The liquid level measuring device includes a mounting shell, the interior of the mounting shell is rotatably connected to a rotating shaft, one end of the rotating shaft is connected to a distance measuring encoder, the outer wall of the rotating shaft is fixedly connected to a take-up wheel, a traction rope is wound around the take-up wheel, the end of the traction rope away from the take-up wheel is connected to a counterweight block, the lower end of the counterweight block is fixedly connected to a buoyancy plate, and a display screen is also installed on the outer wall of the outer sleeve, and the display screen is electrically connected to the distance measuring encoder.

[0013] The lower end of the mounting shell is fixedly connected with a protective tube, the end of the protective tube away from the mounting shell is located in the inner sleeve, and the lower end of the protective tube is threadedly connected with an external tube, and the traction rope passes through the protective tube and the external tube.

[0014] A method for deep well dewatering using the hybrid pipeline for deep well dewatering comprises the following steps:

[0015] S1. First, pass the towing rope through the external tube. The counterweight and buoyancy plate are located at the lower end of the external tube.

[0016] S2. Insert the deep-well casing into the wellhead, then insert the pumping pipe and the external pipe into the deep-well casing. Then, connect the lower end of the inner casing to the deep-well casing, connect the protective pipe to the external pipe, and connect the lower end of the connecting pipe to the pumping pipe. Before connecting the external pipe to the protective pipe, connect the traction rope inside the external pipe to the traction rope inside the protective pipe.

[0017] S3. The upper end of the connecting pipe is connected to the water pump through the drain pipe, and water is pumped out through the water pump;

[0018] S4. As the water level drops, the buoyancy plate moves downward with it. The counterweight causes the take-up reel to rotate, releasing the line. This rotation of the reel drives the distance encoder, which determines the drop in the buoyancy plate and, consequently, the drop in the groundwater level, which is then displayed on the display.

[0019] S5. When the groundwater level drops to the appropriate height, the level gauge emits an alert. Upon hearing the alert, the worker pushes the connecting pipe downward, causing the blocking block to move downward. As the blocking block moves downward, the blocking plate aligns with the through-hole. The return spring pushes the blocking plate into the through-hole, sealing it. At this point, the limit plate contacts the upper side of the outer sleeve.

[0020] S6. Push the push block to rotate the first magnet and the second magnet to align. The second magnet is attracted by the first magnet. When the second magnet is attracted, it squeezes the rubber pad, which is deformed and widens. The ends of the rubber pad enter the sealing groove to seal the through hole, thereby sealing the inner and outer sleeves.

[0021] S6. The air in the inner casing and the deep well casing is then extracted through the vent pipe, creating a vacuum in the deep well casing, allowing groundwater to be extracted again.

[0022] S7. After the water is pumped out, push the push block, rotate the first magnet, and offset the first magnet from the second magnet. Then, pull the connecting pipe upward to move the blocking block upward, thereby reopening the through hole.

[0023] The present invention has the following beneficial effects:

[0024] 1. When performing ordinary precipitation, the water pump is connected to the upper end of the connecting pipe, and the lower end of the connecting pipe is connected to the water pumping pipe, and the deep well is emptied by the water pump; when the water level in the deep well drops and the water pump can no longer pump water, the connecting pipe is operated to make the blocking block drop to block the through hole, and the vacuum pump is connected to the vent pipe, and the deep well is vacuumed by the vacuum pump, thereby performing the conversion to vacuum precipitation. The above structure can conveniently perform the conversion between ordinary precipitation and vacuum precipitation in one well hole, thereby reducing the number of pipe wells, reducing construction costs, and speeding up construction progress.

[0025] 2. An installation groove is opened on the outer wall of the blocking block corresponding to the through hole, and a blocking plate is elastically installed in the installation groove so that the inner sleeve at the upper and lower ends of the blocking block can be ventilated to facilitate precipitation, while the blocking block can also block the through hole.

[0026] 3. An installation port is provided inside the sealing plate, and a second magnet is slidably connected to the installation port. A rubber pad is provided at the end of the second magnet away from the sealing block. Four first magnets are installed on the inner wall of the outer sleeve in a circular manner. The first magnet and the second magnet attract each other, so that the second magnet squeezes the rubber pad. The rubber pad is deformed when squeezed, and the width of the rubber pad becomes wider. After the rubber pad becomes wider, the two ends of the rubber pad will enter the sealing groove to seal the through hole. In this way, the inner sleeve and the outer sleeve can be separated, and then the air in the inner sleeve and the deep well casing is extracted through the vent pipe, so that the deep well casing becomes a vacuum state, and then the groundwater can be extracted again.

[0027] 4. Set a limit plate to limit the position of the blocking block, which makes the operation more convenient when using vacuum precipitation.

[0028] 5. By combining the counterweight block and the buoyancy plate, when the water level in the deep well drops, the traction rope is pulled, thereby driving the rotating shaft to rotate, and the rotation of the rotating shaft drives the ranging encoder to rotate. A control board is also installed inside the mounting shell. The ranging encoder is electrically connected to the control board, and the control board is electrically connected to the display screen, so that the water level in the deep well can be displayed on the display screen. In this way, the drop in the groundwater level can be detected in real time without the need to use other tools for measurement, thereby conveniently observing the precipitation situation in the deep well.

[0029] 6. A protective tube and an external tube are provided. The traction rope is passed through the protective tube and the external tube to protect the traction rope and enable the traction rope to enter the inner casing, so that the counterweight block and the buoyancy plate can be dropped into the deep well. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the present invention after disassembly.

[0032] Figure 3 This is a schematic diagram of the installation structure of the inner sleeve and the connecting pipe of the present invention.

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the inner sleeve and the connecting pipe installation of the present invention.

[0034] Figure 5 This is a schematic diagram of the disassembly of the blocking block structure of the present invention.

[0035] Figure 6 This is a schematic diagram of the disassembly of the sealing plate structure of the present invention.

[0036] Figure 7 This is a schematic diagram of the cross-sectional structure of the outer sleeve of the present invention.

[0037] Figure 8 It is a structural schematic diagram of the liquid level measuring device of the present invention.

[0038] Figure 9 It is a structural schematic diagram of the present invention in use.

[0039] In the figure: outer sleeve 1, movable slot 100, first magnet 101, connecting rod 102, rotating ring 103, pushing block 104, exchange hole 105, adjustment window 106;

[0040] Inner sleeve 2, through hole 200, blocking groove 201, inclined surface 202,

[0041] Connecting pipe 3, vent pipe 310, limiting plate 320, blocking block 300, mounting groove 301, blocking plate 302, mounting port 303, second magnet 304, rubber pad 305, limiting rod 306, return spring 307, limiting groove 308, and jack 309;

[0042] Display screen 4, liquid level measuring device 5, mounting housing 500, rotating shaft 501, distance encoder 502, take-up wheel 503, control panel 504;

[0043] Protective pipe 6, buoyancy plate 7, counterweight block 8, external pipe 9, deep well casing 10, pumping pipe 20, drainage pipe 30. DETAILED DESCRIPTION

[0044] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0045] Example 1:

[0046] See also Figure 1-9A hybrid pipe for deep well dewatering includes an outer sleeve 1, an inner sleeve 2, and a connecting pipe 3. The inner sleeve 2 is detachably mounted inside the outer sleeve 1, that is, a plurality of screw holes are provided on the upper end of the inner sleeve 2. The inner sleeve 2 is connected to the top of the outer sleeve 1 by screws, and the lower end of the inner sleeve 2 extends to the outside of the outer sleeve 1. Four through holes 200 are provided on the outer wall of the inner sleeve 2. The interior of the inner sleeve 2 communicates with the interior of the outer sleeve 1 through the through holes 200. A blocking block 300 is mounted on the connecting pipe 3. The connecting pipe 3 passes through the entire blocking block 300. The blocking block 300 is slidably mounted inside the inner sleeve 2, and the upper end of the connecting pipe 3 slides through the upper end surface of the outer sleeve 1. By operating the connecting pipe 3 to slide the blocking block 300 up and down, the blocking block 300 can block the through holes 200. The outer wall of the inner casing 2 is provided with a vent pipe 310, and the top of the outer casing 1 is provided with a plurality of exchange holes 105. The vent pipe 310 extends through one of the exchange holes 105 to the outside of the outer casing 1. During ordinary precipitation, a blocking cap is provided at the upper end of the vent pipe 310, and a water pump is connected to the upper end of the connecting pipe 3. The lower end of the connecting pipe 3 is connected to the water pumping pipe 20, and the deep well is dewatered by the water pump. When the water level in the deep well drops and the water pump can no longer pump water, the blocking block 300 is lowered by operating the connecting pipe 3 to block the through hole 200. The vacuum pump is connected to the vent pipe 310, and the deep well is vacuumed by the vacuum pump, thereby performing a conversion to vacuum precipitation. With the above structure, ordinary precipitation and vacuum precipitation can be conveniently converted in a single well hole, thereby reducing the number of pipe wells, reducing construction costs, and accelerating construction progress.

[0047] Example 2:

[0048] See also Figure 4 、 5 To allow ventilation at the upper and lower ends of the inner sleeve 2 located at the blocking block 300, facilitating precipitation while also enabling the blocking block 300 to block the through-hole 200, a mounting groove 301 is defined on the outer wall of the blocking block 300, corresponding to the through-hole 200. A blocking plate 302 is mounted within the mounting groove 301, and the blocking plate 302 is slidably connected to the blocking block 300. A return spring 307 is fixedly connected to the side of the blocking plate 302 proximal to the blocking block 300, and the return spring 307 is fixedly connected to the blocking block 300. Specifically, a limiting groove 308 is further defined within the mounting groove 301, and the end of the return spring 307, which is distal to the blocking plate 302, is located within the limiting groove 308. The through-hole 200 is blocked by the elastically connected blocking plate 302.

[0049] See also Figure 5The end of the blocking plate 302 near the blocking block 300 is symmetrically fixedly connected to a limit rod 306. The interior of the mounting groove 301 is symmetrically provided with a socket 309, and the limit rod 306 is slidably inserted into the socket 309. This allows the blocking plate 302 to move along the guide direction of the limit rod 306 and the socket 309, thereby providing better stability for the blocking plate 302.

[0050] A sealing groove 201 is provided on the side wall of the through hole 200, and an inclined surface 202 is provided at the top of the through hole 200. The upper end of the sealing plate 302 is inclined, and the inclined surface 202 is adapted to the upper end of the sealing plate 302. The inclined setting facilitates the convenient extraction of the sealing plate 302 from the sealing groove 201. It should be noted that after the sealing block 300 is provided with the sealing plate 302, in order to facilitate the rapid engagement of the sealing plate 302 with the through hole 200 for sealing, the sealing block 300 slides up and down along the inner sleeve 2 and cannot rotate arbitrarily. Specifically, the inner sleeve 2 is provided with a groove on the path of the sealing plate 302, and the sealing plate 302 slides within the groove.

[0051] Example 3:

[0052] See also Figure 5 、 6 The interior of the blocking plate 302 is provided with an installation opening 303, and the installation opening 303 corresponds to the blocking groove 201, and a second magnet 304 is slidably connected in the installation opening 303, and a rubber pad 305 is provided at one end of the second magnet 304 away from the blocking block 300. Four first magnets 101 are installed on the inner wall of the outer sleeve 1 to rotate along the circumference, and a movable groove 100 is provided on the inner wall of the outer sleeve 1. The first magnet 101 is located in the movable groove 100, and the polarity of the first magnet 101 is opposite to that of the second magnet 304. The upper end of the first magnet 101 is fixedly connected to the connecting rod 102, and the upper end of the outer sleeve 1 is provided with an adjustment window 106. The connecting rod 102 passes through the upper end of the outer sleeve 1 through the adjustment window 106. The connecting rod 102 is located at the upper end of the outer sleeve 1 and is fixedly connected to the pushing block 104. The connecting rods 102 are connected by a rotating ring 103, and the rotating ring 103 is connected to the outer sleeve 1 for damping rotation. The first magnet 101 and the second magnet 304 attract each other, so that the second magnet 304 squeezes the rubber pad 305. The rubber pad 305 is deformed by the squeezing, and the width of the rubber pad 305 becomes wider. After the rubber pad 305 becomes wider, both ends of the rubber pad 305 enter the sealing groove 201, thereby sealing the through hole 200, so that the sealing effect of the through hole 200 is better.

[0053] Example 4:

[0054] See also Figure 1 、 2A limit plate 320 is fixedly mounted on the connecting pipe 3. The limit plate 320 is located at the upper portion of the outer sleeve 1. When the limit plate 320 contacts the top of the outer sleeve 1, the blocking block 300 blocks the through hole 200. The setting of the limit plate 320 limits the position of the blocking block 300, making operation more convenient when vacuum dewatering is used.

[0055] Embodiment 5:

[0056] In order to facilitate observation of the precipitation in the deep well, a liquid level measuring device 5 is fixedly connected to the outer wall of the outer casing 1, and the liquid level of the groundwater can be measured by the liquid level measuring device 5. For example, a drop-in liquid level meter is used, but a liquid level meter connected by a cable is not easy to install. Figure 2 , a mechanical liquid level measuring device 5 is set.

[0057] For details, see Figure 8 The liquid level measuring device 5 includes a mounting shell 500, the interior of the mounting shell 500 is rotatably connected to a rotating shaft 501, one end of the rotating shaft 501 is connected to a distance encoder 502, and a take-up wheel 503 is fixedly connected to the outer wall of the rotating shaft 501, and a traction rope is wound around the take-up wheel 503. Figure 1 The end of the traction rope away from the take-up reel 503 is connected to a counterweight 8, and the lower end of the counterweight 8 is fixedly connected to a buoyancy plate 7. A display screen 4 is also installed on the outer wall of the outer sleeve 1, and the display screen 4 is electrically connected to the distance encoder 502. Through the combination of the counterweight 8 and the buoyancy plate 7, when the water level in the deep well drops, the traction rope is pulled, thereby driving the rotating shaft 501 to rotate, and the rotation of the rotating shaft 501 drives the distance encoder 502 to rotate. A control board 504 is also installed inside the mounting shell 500. The distance encoder 502 is electrically connected to the control board 504, and the control board 504 is electrically connected to the display screen 4. Therefore, the water level in the deep well is displayed on the display screen 4, making it convenient to observe the precipitation situation in the deep well. The control board 504 can adopt the controller model JK76, which has a built-in display screen 4.

[0058] Example 6:

[0059] In order to protect the traction rope and enable the traction rope to enter the inner casing 2, so that the counterweight block 8 and the buoyancy plate 7 can be dropped into the deep well, a protective tube 6 is fixedly connected to the lower end of the mounting shell 500. The end of the protective tube 6 away from the mounting shell 500 is located in the inner casing 2, and the lower end of the protective tube 6 is threadedly connected to the external tube 9, and the traction rope passes through the protective tube 6 and the external tube 9.

[0060] Embodiment seven:

[0061] A method for deep well dewatering using the hybrid pipeline for deep well dewatering comprises the following steps:

[0062] S1. First, pass the traction rope through the external tube 9, the counterweight 8 and the buoyancy plate 7 are located at the lower end of the external tube 9;

[0063] S2. Insert the deep-well casing 10 into the wellhead, then insert the pumping pipe 20 and the external pipe 9 into the deep-well casing 10. Then, connect the lower end of the inner casing 2 to the deep-well casing 10, the protective pipe 6 to the external pipe 9, and the lower end of the connecting pipe 3 to the pumping pipe 20. Before connecting the external pipe 9 to the protective pipe 6, connect the traction rope inside the external pipe 9 to the traction rope inside the protective pipe 6.

[0064] S3. The upper end of the connecting pipe 3 is connected to the water pump through the drain pipe 30, and water is pumped out through the water pump;

[0065] S4. As the water level drops, the buoyancy plate 7 also moves downward with the water level. The buoyancy plate 7 moves downward under the action of the counterweight 8 and the take-up wheel 503 rotates to release the line. When the take-up wheel 503 rotates, the distance measuring encoder 502 rotates to obtain the height of the buoyancy plate 7 drop, thereby obtaining the height of the groundwater level drop, which is then displayed on the display 4;

[0066] S5. When the groundwater level drops to a suitable height, the level measuring device 5 issues an alert. Upon hearing the alert, the worker pushes the connecting pipe 3 downward, causing the blocking block 300 to move downward. As the blocking block 300 moves downward, the blocking plate 302 aligns with the through-hole 200. The return spring 307 pushes the blocking plate 302 into the through-hole 200, thereby sealing the through-hole 200. At this point, the stopper 320 contacts the upper side of the outer sleeve 1.

[0067] S6. Push the push block 104, rotating the first magnet 101 to align with the second magnet 304. The second magnet 304 is now attracted by the first magnet 101. When attracted, the second magnet 304 squeezes the rubber pad 305, causing the rubber pad 305 to deform and widen. The ends of the rubber pad 305 then enter the sealing groove 201, thereby sealing the through hole 200 and creating a sealed barrier between the inner sleeve 2 and the outer sleeve 1.

[0068] S6. Then the air inside the inner casing 2 and the deep well casing 10 is extracted through the vent pipe 310, so that the deep well casing 10 becomes a vacuum state, and then the groundwater is extracted again;

[0069] S7. After the pumping is completed, push the push block 104, rotate the first magnet 101, so that the first magnet 101 and the second magnet 304 are offset, and then pull the connecting tube 3 upward so that the blocking block 300 moves upward, and the through hole 200 can be opened again.

[0070] The working principle of the present invention is:

[0071] See also Figure 9 When in use, first insert the deep well casing 10 into the wellhead, then insert the pumping pipe 20 and the external pipe 9 into the deep well casing 10, and then respectively connect the inner casing 2, the protective pipe 6 and the connecting pipe 3 to the deep well casing 10, the external pipe 9 and the pumping pipe 20. Before connecting the external pipe 9 to the protective pipe 6, first connect the traction rope in the external pipe 9 to the traction rope in the protective pipe 6 (the two traction ropes themselves are integrated, and before inserting the external pipe 9 into the deep well casing, the traction rope stage is first connected to facilitate the insertion of the external pipe 9 into the deep well casing). When the external pipe 9 is inserted into the deep well casing, the traction rope is already inside the external pipe 9, and the counterweight 8 is also Located below the external pipe 9, the buoyancy plate 7 floats on the surface of the groundwater at this time. As water is pumped out through the pumping pipe 20, the groundwater level will drop. As the water level drops, the buoyancy plate 7 will also move downward with the water level. When the buoyancy plate 7 moves downward, the take-up wheel 503 will rotate under the action of the counterweight block 8 to release the line. When the take-up wheel 503 rotates, it will drive the distance measuring encoder 502 to rotate, thereby obtaining the descending height of the buoyancy plate 7. The descending height of the buoyancy plate 7 can be obtained, and the height of the groundwater level drop can be obtained, which is then displayed on the display screen 4. In this way, the descending height of the groundwater level can be detected in real time without the need to use other tools for measurement.

[0072] When the groundwater level drops to a suitable height, the liquid level measuring device 5 will issue a prompt. When the staff hears the prompt, they push the connecting pipe 3 downward to drive the blocking block 300 downward. During the downward movement of the blocking block 300, when the blocking plate 302 is aligned with the through hole 200, the return spring 307 pushes the blocking plate 302 into the through hole 200, thereby blocking the through hole 200. When the limit plate 320 contacts the outer sleeve 1, the blocking plate 302 is aligned with the through hole 200, and then the push block 104 is pushed to align the first magnet 101 with the second magnet 304. At this time, the second magnet 304 is attracted by the first magnet 101. When attracted, the second magnet 304 squeezes the rubber pad 305, causing the rubber pad 305 to deform and widen. After the rubber pad 305 widens, the two ends of the rubber pad 305 enter the sealing groove, thereby sealing the through hole 200. In this way, the inner casing 2 and the outer casing 1 can be isolated, and then the air in the inner casing 2 and the deep well casing 10 can be extracted through the vent pipe 310 to make the deep well casing 10 into a vacuum state, and then the groundwater can be extracted again.

[0073] When using the device again or after use, the first magnet 101 is rotated to separate from the second magnet 304, and then the connecting tube 3 is pulled upward to move the blocking block 300 upward to open the through hole 200 again.

Claims

1. A hybrid pipe for deep well dewatering, characterized by: The invention comprises an outer sleeve (1), an inner sleeve (2), and a connecting pipe (3), wherein the inner sleeve (2) is installed inside the outer sleeve (1), the lower end of the inner sleeve (2) extends to the outside of the outer sleeve (1), at least one through hole (200) is opened on the outer wall of the inner sleeve (2), the interior of the inner sleeve (2) is communicated with the interior of the outer sleeve (1) through the through hole (200), and a blocking block (300) is mounted on the connecting pipe (3), and the blocking block (300) is slidably installed. The connecting tube (3) is installed inside the inner sleeve (2), and the upper end thereof slides through the upper end surface of the outer sleeve (1). The sealing block (300) slides through the connecting tube (3), and the sealing block (300) can seal the through hole (200). The outer wall of the inner sleeve (2) is provided with a vent pipe (310). The outer sleeve (1) is provided with a plurality of exchange holes (105). The vent pipe (310) passes through one of the exchange holes (105) and extends to the outside of the outer sleeve (1).

2. A hybrid pipe for deep well dewatering according to claim 1, characterized in that: The outer wall of the blocking block (300) is provided with a mounting groove (301) corresponding to the through hole (200), a blocking plate (302) is installed in the mounting groove (301), and the blocking plate (302) is slidably connected to the blocking block (300), and a return spring (307) is fixedly connected to the side of the blocking plate (302) close to the blocking block (300), and the return spring (307) is fixedly connected to the blocking block (300).

3. A hybrid pipe for deep well dewatering according to claim 2, characterized in that: One end of the blocking plate (302) close to the blocking block (300) is symmetrically fixedly connected to a limiting rod (306); a socket (309) is symmetrically provided inside the mounting groove (301); and the limiting rod (306) is slidably inserted into the socket (309).

4. A hybrid pipeline for deep well dewatering according to claim 2 or 3, characterized in that: A sealing groove (201) is provided on the side wall of the through hole (200), an inclined surface (202) is provided at the top of the through hole (200), the upper end of the sealing plate (302) is inclined, and the inclined surface (202) is adapted to the upper end of the sealing plate (302).

5. A hybrid pipe for deep well dewatering according to claim 4, characterized in that: The sealing plate (302) is provided with a mounting opening (303) inside, the mounting opening (303) corresponds to the sealing groove (201), a second magnet (304) is slidably connected in the mounting opening (303), and a rubber pad (305) is provided at one end of the second magnet (304) away from the sealing block (300). A first magnet (101) is mounted on the inner wall of the outer sleeve (1) in a circumferentially rotating manner, and the upper end of each of the first magnets (101) is fixedly connected to a connecting rod (102). An adjustment window (106) is provided at the upper end of the outer sleeve (1), and the connecting rod (102) passes through the upper end of the outer sleeve (1) through the adjustment window (106). The connecting rod (102) is located at the upper end of the outer sleeve (1) and is fixedly connected to a pushing block (104). The connecting rods (102) are connected to each other via a rotating ring (103), and the rotating ring (103) is connected to the outer sleeve (1) in a damped rotation manner.

6. A hybrid pipe for deep well dewatering according to claim 5, characterized in that: A limiting plate (320) is fixedly mounted on the connecting tube (3), and the limiting plate (320) is located on the upper portion of the outer sleeve (1). When the limiting plate (320) contacts the top of the outer sleeve (1), the blocking block (300) blocks the through hole (200).

7. A hybrid pipe for deep well dewatering according to claim 6, characterized in that: A liquid level measuring device (5) is also fixedly connected to the outer wall of the outer sleeve (1), and the liquid level of the groundwater is measured by the liquid level measuring device (5).

8. A hybrid pipe for deep well dewatering according to claim 7, characterized in that: The liquid level measuring device (5) comprises a mounting shell (500), wherein the mounting shell (500) is rotatably connected to a rotating shaft (501) inside, one end of the rotating shaft (501) is connected to a distance measuring encoder (502), a take-up wheel (503) is fixedly connected to the outer wall of the rotating shaft (501), a traction rope is wound around the take-up wheel (503), an end of the traction rope away from the take-up wheel (503) is connected to a counterweight (8), the lower end of the counterweight (8) is fixedly connected to a buoyancy plate (7), and a display screen (4) is further mounted on the outer wall of the outer sleeve (1), and the display screen (4) is electrically connected to the distance measuring encoder (502).

9. A hybrid pipe for deep well dewatering according to claim 8, characterized in that: The lower end of the mounting shell (500) is fixedly connected to a protective tube (6), one end of the protective tube (6) away from the mounting shell (500) is located in the inner sleeve (2), and the lower end of the protective tube (6) is threadedly connected to an external tube (9), and the traction rope passes through the protective tube (6) and the external tube (9).

10. A method for deep well dewatering using the hybrid pipeline for deep well dewatering according to claim 9, characterized in that: The following steps are included: S1. First, pass the traction rope through the external tube (9), the counterweight (8) and the buoyancy plate (7) are located at the lower end of the external tube (9); S2. Insert the deep well casing (10) into the wellhead, then insert the pumping pipe (20) and the external pipe (9) into the deep well casing (10), then connect the lower end of the inner casing (2) to the deep well casing (10), connect the protective pipe (6) to the external pipe (9), and connect the lower end of the connecting pipe (3) to the pumping pipe (20); wherein, before connecting the external pipe (9) to the protective pipe (6), first connect the traction rope in the external pipe (9) to the traction rope in the protective pipe (6); S3. The upper end of the connecting pipe (3) is connected to the water pump through the drain pipe (30), and water is pumped out through the water pump; S4. As the water level drops, the buoyancy plate (7) also moves downward with the water level. As the buoyancy plate (7) moves downward, the take-up wheel (503) rotates under the action of the counterweight (8), thereby releasing the line. When the take-up wheel (503) rotates, the distance measuring encoder (502) rotates, thereby obtaining the height of the buoyancy plate (7) and the height of the groundwater level drop, which is then displayed on the display screen (4); S5. When the groundwater level drops to a suitable height, the level measuring device (5) issues a prompt. When the staff hears the prompt, they push the connecting pipe (3) downward, causing the blocking block (300) to move downward. During the downward movement of the blocking block (300), the blocking plate (302) is aligned with the through hole (200). Under the action of the return spring (307), the blocking plate (302) is pushed into the through hole (200), thereby blocking the through hole (200). At this time, the limit plate (320) contacts the upper side of the outer sleeve (1); S6. Push the push block (104) and rotate the first magnet (101) to align with the second magnet (304). At this time, the second magnet (304) is attracted by the first magnet (101). When the second magnet (304) is attracted, it squeezes the rubber pad (305). The rubber pad (305) is squeezed and deformed, and the width of the rubber pad (305) becomes wider. The two ends of the rubber pad (305) enter the sealing groove (201) to seal the through hole (200), so that the inner sleeve (2) and the outer sleeve (1) are sealed and separated; S6. The air in the inner casing (2) and the deep well casing (10) is extracted through the vent pipe (310), so that the deep well casing (10) becomes a vacuum state, and the groundwater is extracted again; S7. After the pumping is completed, push the pushing block (104), rotate the first magnet (101), and stagger the first magnet (101) and the second magnet (304). Then, pull the connecting pipe (3) upward to move the blocking block (300) upward, and the through hole (200) can be opened again.

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