Water conservancy and hydropower construction drainage device

Abstract

The utility model discloses a water conservancy and hydropower construction drainage device which comprises a base, a box body is installed on the base, a first filter screen is obliquely arranged in the box body, a material scraping assembly is arranged above the first filter screen, and the side, located between the first filter screen and the material scraping assembly, of the box body is communicated with an installation pipe through a pipeline. A second filter screen is arranged in the mounting pipe, an automatic cleaning assembly is mounted in the mounting pipe, the higher end of the first filter screen is connected with the inner wall of the box body through a mounting assembly, a discharging opening is formed in the lower end, located on the first filter screen, of the box body, a collecting box is arranged below the discharging opening, and a water pumping pipe is arranged at the bottom of the box body. The first filter screen and the second filter screen do not need to be manually cleaned at regular intervals, the use effect of the drainage device can be guaranteed, the working efficiency is improved, a double-filtering mode is adopted, the mesh diameter of the first filter screen is smaller than that of the second filter screen, accumulated water is completely filtered, and the water quality is improved. And environmental pollution caused by discharged accumulated water is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower, in particular to a water conservancy and hydropower construction drainage device. Background Art

[0002] With the extensive use of water resources by people, water resources are becoming increasingly scarce. Water conservancy projects control and allocate surface and groundwater to reasonably allocate and control water to meet the needs of people's lives and production for water resources. Through the reasonable laying of pipelines during water conservancy construction, water resources are rationally developed, and sufficient drainage is carried out during floods, so that groundwater and surface water are arranged in a coordinated manner, which greatly reduces the waste of water resources. During the construction of water conservancy projects, people generally use drainage devices to drain the accumulated water in low-lying areas, but there are many impurities in the drainage process, which is easy to cause blockage and lacks a certain filtering effect;

[0003] A Chinese patent with prior art authorization announcement number CN219825524U discloses a drainage device for water conservancy and hydropower construction, which rotates a rotating rod by turning on a motor. The rotation of the rotating rod drives the first bevel gear to rotate. The rotation of the first bevel gear drives the second bevel gear to rotate. The rotation of the second bevel gear drives the reciprocating screw to rotate. The rotation of the reciprocating screw drives the brush rack to move. The movement of the brush rack cleans the residue on the filter frame to prevent blockage and affect the drainage efficiency.

[0004] Although the above patent can clean the residue on the filter frame by moving the brush frame to prevent clogging, during the use of the device, it is necessary to manually pull out the filter frame regularly to clean the impurities on the filter frame, which affects the use effect of the drainage device and reduces the work efficiency. In addition, by only setting a single-layer filter, the accumulated water cannot be completely filtered, and some tiny impurities can easily pass through the filter and be discharged, causing environmental pollution.

[0005] Therefore, the applicant proposes a water conservancy and hydropower construction drainage device to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a drainage device for water conservancy and hydropower construction.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] A drainage device for water conservancy and hydropower construction comprises a base, a box body is installed on the base, a first filter screen is obliquely arranged in the box body, a scraper assembly is provided above the first filter screen, a side of the box body located between the first filter screen and the scraper assembly is connected to a mounting pipe through a pipeline, a second filter screen is provided in the mounting pipe, an automatic cleaning assembly is installed in the mounting pipe, a higher end of the first filter screen is connected to the inner wall of the box body through the mounting assembly, a discharge port is opened at a lower end of the box body located at the first filter screen, a collecting box is provided below the discharge port, and a pumping pipe is provided at the bottom of the box body.

[0009] Furthermore, a first water pump is provided on the base at one side of the box body, a water inlet of the first water pump is connected to the installation pipe through a water inlet hose, and a water outlet of the first water pump is connected to one side of the box body through a water outlet pipe.

[0010] Furthermore, the scraper assembly includes a screw rod that is rotatably and tiltably arranged in a box body, one end of the screw rod passes through the box body and is connected to an output end of the motor, a movable plate is installed on the screw rod, a telescopic rod is installed at the bottom of the movable plate, a scraper is installed on the telescopic end of the telescopic rod, and the scraper can contact the first filter screen.

[0011] Furthermore, the automatic cleaning component includes a support plate installed in the mounting tube, a rotating rod is rotatably provided on the support plate, a propeller is installed at one end of the rotating rod away from the second filter screen, the other end of the rotating rod passes through the second filter screen, and extends out of the second filter screen to be connected to the cleaning plate, a brush is provided on the cleaning plate, and the brush is in contact with the second filter screen.

[0012] Furthermore, a water inlet cover is provided at one end of the installation pipe away from the water inlet hose, a plurality of spiral strips are provided on the inner wall of the water inlet cover, and a support block is installed at the bottom of the water inlet cover.

[0013] Furthermore, the mounting assembly includes a mounting groove formed on the inner wall of the box body, the top and bottom of the mounting groove are provided with slide grooves connected to the mounting groove, a slider is provided for sliding in the slide groove, a connecting rod is installed on the slider, the connecting rod extends out of the slide groove and is connected to a clamping plate, and the two clamping plates can contact each other, and a spring is connected between the slider and the inner wall of the slide groove and is sleeved on the outer surface of the connecting rod.

[0014] Furthermore, connecting plates are provided at both ends of the first filter screen, the end of the connecting plate located at the higher end of the first filter screen is installed between two abutting plates, and the end of the connecting plate located at the lower end of the first filter screen can be placed on the discharge port.

[0015] Furthermore, guide rods symmetrically arranged on both sides of the screw rod are installed in the box body, the guide rods penetrate the movable plate, and the guide rods are slidably connected to the movable plate.

[0016] Furthermore, a second water pump is provided on the base at one side of the box body, a water inlet of the second water pump is connected to the water suction pipe, and a water outlet of the second water pump is connected to the drainage pipe.

[0017] Furthermore, a box door is hingedly provided on one side of the box body, and the box door is provided with an observation window and a handle.

[0018] Compared with the prior art, the utility model provides a water conservancy and hydropower construction drainage device, which has the following

[0019] Beneficial effects:

[0020] 1. The utility model cleans the outer surface of the second filter screen through the automatic cleaning component, and scrapes away tiny impurities on the first filter screen through the scraping component, so as to avoid the first filter screen and the second filter screen being blocked by impurities and affecting the drainage efficiency. In addition, there is no need to manually clean the first filter screen and the second filter screen regularly, which can ensure the use effect of the drainage device and improve the work efficiency.

[0021] 2. The utility model first filters the impurities with large particle sizes in the accumulated water through the second filter screen, and then the accumulated water enters the box through the pipe, and the tiny impurities in the accumulated water are filtered through the first filter screen. The filtered accumulated water is discharged outward through the pumping pipe, and the tiny impurities on the first filter screen are scraped off by the scraper component. The impurities are discharged through the discharge port and fall into the collection box for collection, which is convenient for subsequent processing; the utility model adopts a double filtration method, and the mesh diameter of the first filter screen is smaller than the mesh diameter of the second filter screen, so the accumulated water is completely filtered to avoid environmental pollution caused by the discharged accumulated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the internal structure of the utility model from the front view;

[0023] Figure 2 It is a front view structural schematic diagram of the utility model;

[0024] Figure 3 It is a schematic structural diagram of the scraper assembly of the utility model in another direction;

[0025] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 5 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 It is a schematic diagram of the structure of the water inlet cover of the utility model when viewed from above;

[0028] Figure 7 It is a right side structural schematic diagram of the utility model with the abutting plates in contact with each other.

[0029] Markings in the figure: 1. base; 2. box; 3. first filter; 4. scraper assembly; 41. screw rod; 42. motor; 43. moving plate; 44. telescopic rod; 45. scraper; 46. guide rod; 47. mounting frame; 5. mounting pipe; 6. second filter; 7. automatic cleaning assembly; 71. support plate; 72. rotating rod; 73. propeller; 74. cleaning plate; 75. brush; 8. mounting assembly; 81. mounting slot; 82. slide slot; 83. Slider; 84. Connecting rod; 85. Clamping plate; 86. Spring; 9. Discharge port; 10. Collecting box; 11. Connecting plate; 12. First water pump; 13. Water inlet hose; 14. Water outlet pipe; 15. Water inlet cover; 16. Spiral strip; 17. Support block; 18. Second water pump; 19. Suction pipe; 20. Drain pipe; 21. Discharge guide plate; 22. Box door; 23. Observation window; 24. Handle; 25. Support leg; 26. Universal wheel. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0031] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0032] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0035] The utility model embodiment provides a water conservancy and hydropower construction drainage device, referring to Figures 1 to 7 , including a base 1, on which a box body 2 is installed, a first filter screen 3 is obliquely arranged in the box body 2 to filter tiny impurities in the accumulated water, a scraper assembly 4 is provided above the first filter screen 3 to scrape off tiny impurities on the first filter screen 3, one side of the box body 2 located between the first filter screen 3 and the scraper assembly 4 is connected to the installation pipe 5 through a pipeline, a second filter screen 6 is provided in the installation pipe 5 to filter impurities with large particle sizes in the accumulated water, an automatic cleaning assembly 7 is installed in the installation pipe 5 to clean the outer surface of the second filter screen 6, the higher end of the first filter screen 3 is connected to the inner wall of the box body 2 through the installation assembly 8, a discharge port 9 is opened at the lower end of the box body 2 located at the first filter screen 3, a collecting box 10 is provided below the discharge port 9, and a water suction pipe 19 is provided at the bottom of the box body 2.

[0036] Specifically, four supporting legs 25 are distributed in a rectangular array at the four corners of the bottom of the box body 2, and the supporting legs 25 are installed on the base 1 to support the box body 2; four universal wheels 26 are distributed in a rectangular array at the four corners of the bottom of the base 1 to facilitate the movement of the device; the mesh diameter of the first filter screen 3 is smaller than the mesh diameter of the second filter screen 6; a discharge guide plate 21 is installed at the discharge port 9 on the box body 2 to facilitate better discharge of scraped impurities, and the outlet of the discharge guide plate 21 is located directly above the collection box 10; the installation component 8 is arranged to facilitate the installation or disassembly, cleaning and replacement of the first filter screen 3; preferably, the bottom of the box body 2 is arranged in a funnel shape to facilitate the complete discharge of filtered accumulated water.

[0037] Reference Figure 1 and Figure 2 In this embodiment, a first water pump 12 is provided on the base 1 at one side of the box body 2, the water inlet of the first water pump 12 is connected to the installation pipe 5 through a water inlet hose 13, and the water outlet of the first water pump 12 is connected to one side of the box body 2 through a water outlet pipe 14.

[0038] Specifically, the second filter screen 6 is installed at one end of the installation pipe 5 away from the water inlet hose 13 ; preferably, the connection point between the water outlet pipe 14 and the box body 2 is located between the scraper assembly 4 and the higher end of the first filter screen 3 .

[0039] Reference Figure 1 and Figure 3 In this embodiment, the scraper assembly 4 includes a screw rod 41 that is rotatably and tiltably arranged in the box body 2, one end of the screw rod 41 passes through the box body 2 and is connected to the output end of the motor 42, a movable plate 43 is installed on the screw rod 41, a telescopic rod 44 is installed at the bottom of the movable plate 43, and a scraper 45 is installed on the telescopic end of the telescopic rod 44, and the scraper 45 can contact the first filter screen 3.

[0040] Specifically, the screw rod 41 can adopt a reciprocating screw rod, which is a prior art and will not be described in detail here; the motor 42 is installed on the mounting bracket 47, and the mounting bracket 47 is installed on the side of the box body 2 at the higher end of the first filter screen 3; the screw rod 41 is threadedly connected to the movable plate 43; the telescopic rod 44 can adopt an electric telescopic rod. In this embodiment, the number of telescopic rods 44 is 2, which are located on both sides of the bottom of the movable plate 43.

[0041] Start the motor 42, the motor 42 drives the screw rod 41 to rotate, and the screw rod 41 drives the movable plate 43 to move. When the movable plate 43 moves from the higher end of the first filter screen 3 to the lower end of the first filter screen 3, the telescopic rod 44 extends, driving the scraper 45 to contact the surface of the first filter screen 3 to scrape off the tiny impurities on the first filter screen 3. When the movable plate 43 moves from the lower end of the first filter screen 3 to the higher end of the first filter screen 3, the telescopic rod 44 contracts, driving the scraper 45 to separate from the first filter screen 3, avoiding blocking of subsequent impurities and better scraping off the impurities.

[0042] Among them, refer to Figure 3 In this embodiment, guide rods 46 symmetrically arranged on both sides of the screw rod 41 are installed in the box body 2 to improve the stability of the movement of the movable plate 43. The guide rods 46 penetrate the movable plate 43, and the guide rods 46 and the movable plate 43 are slidably connected.

[0043] Specifically, the screw rod 41 is arranged in parallel with the guide rod 46 .

[0044] Reference Figure 1 and Figure 4In this embodiment, the automatic cleaning component 7 includes a support plate 71 installed in the mounting tube 5, and a rotating rod 72 is rotatably provided on the support plate 71. A propeller 73 is installed at one end of the rotating rod 72 away from the second filter screen 6. The other end of the rotating rod 72 passes through the second filter screen 6 and extends out of the second filter screen 6 to be connected with the cleaning plate 74. A brush 75 is provided on the cleaning plate 74, and the brush 75 is in contact with the second filter screen 6.

[0045] Specifically, the support plate 71 and the rotating rod 72 are rotatably connected via a sealed bearing. When water enters the interior of the mounting tube 5, the flowing water can cause the propeller 73 to rotate, thereby causing the rotating rod 72 to rotate inside the mounting tube 5, thereby driving the cleaning plate 74 to rotate, allowing the brush 75 to clean the outer surface of the second filter screen 6.

[0046] Reference Figure 4 and Figure 6 In this embodiment, a water inlet cover 15 is provided at one end of the mounting tube 5 away from the water inlet hose 13, and a plurality of spiral strips 16 are provided on the inner wall of the water inlet cover 15. A support block 17 is installed at the bottom of the water inlet cover 15, so that a gap is left between the water inlet cover 15 and the bottom of the accumulated water to prevent the bottom of the water inlet cover 15 from completely contacting the bottom of the accumulated water and failing to absorb the accumulated water.

[0047] Specifically, the water inlet cover 15 and the mounting tube 5 can be an integrally formed structural design; the spiral direction of the plurality of spiral strips 16 is consistent with the spiral direction of the propeller 73, thereby increasing the spiral force of the water flow entering, better driving the propeller 73 to rotate, and improving the cleaning efficiency of the brush 75; the number of support blocks 17 is 2-8, which is set according to the specific situation. In the present embodiment, the number of support blocks 17 is 4.

[0048] Reference Figure 5 and Figure 7 The top and bottom of the mounting groove 81 are provided with a slide groove 82 connected with the mounting groove 81. A slider 83 is slidably provided in the slide groove 82. A connecting rod 84 is installed on the slider 83. The connecting rod 84 extends out of the slide groove 82 and is connected with a clamping plate 85, and the two clamping plates 85 can contact each other. A spring 86 sleeved on the outer surface of the connecting rod 84 is connected between the slider 83 and the inner wall of the slide groove 82. On the one hand, the spring 86 is used to make the clamping plate 85 press against the first filter screen 3 to improve the clamping force on the first filter screen 3. On the other hand, when the accumulated water enters the interior of the housing 2 through the water outlet pipe 14, the accumulated water will cause an impact on the first filter screen 3. The up and down shaking of the spring can reduce the impact force of the water flow while ensuring that the clamping plate 85 clamps the first filter screen 3, thereby improving practicality.

[0049] Specifically, the slider 83 can move along the slide groove 82; the top and bottom of the installation groove 81 can be provided with a plurality of slide grooves 82 connected to the installation groove 81 to improve the stability of the clamping plate 85; the clamping plate 85 is located in the installation groove 81; one side of the upper and lower clamping plates 85 is inclined to facilitate the installation of the first filter screen 3;

[0050] Among them, refer to Figure 1 and Figure 5 In this embodiment, connecting plates 11 are provided at both ends of the first filter screen 3. The connecting plate 11 is located at the higher end of the first filter screen 3 and is installed between two abutting plates 85. The connecting plate 11 is located at the lower end of the first filter screen 3 and can be placed on the discharge port 9.

[0051] Specifically, a slot communicating with the discharge port 9 is formed on the inner wall of the box body 2 at one end below the first filter screen 3 , and the connecting plate 11 is placed on the slot and can move along the slot to facilitate installation or removal of the first filter screen 3 .

[0052] When the first filter screen 3 is not installed, the upper and lower clamping plates 85 are in contact with each other. When the first filter screen 3 is installed, the connecting plate 11 separates the upper and lower clamping plates 85. The clamping plates 85 drive the connecting rod 84 and the slider 83 to move in the slide groove 82. The spring 86 is stretched. The rebound force of the spring 86 makes the clamping plate 85 press against the connecting plate 11, thereby increasing the clamping force on the first filter screen 3.

[0053] Reference Figure 1 and Figure 2 In this embodiment, a second water pump 18 is provided on the base 1 at one side of the box body 2, the water inlet of the second water pump 18 is connected to the water suction pipe 19, and the water outlet of the second water pump 18 is connected to the drain pipe 20.

[0054] Specifically, the second water pump 18 discharges the filtered accumulated water through the suction pipe 19 and the drainage pipe 20 .

[0055] Reference Figure 2 In this embodiment, a door 22 is hingedly provided on one side of the box body 2, and an observation window 23 and a handle 24 are provided on the door 22.

[0056] Specifically, by opening the box door 22, the interior of the box body 2 can be inspected, and the first filter screen 3 can be installed or removed, cleaned and replaced. Preferably, a silicone strip is provided between the box door 22 and the box body 2 to prevent accumulated water from flowing out from the gap between the box door 22 and the box body 2 to cause environmental pollution; by providing an observation window 23, it is convenient for staff to observe the filtering and scraping conditions in the box body 2. Preferably, a silicone strip is provided between the observation window 23 and the inner wall of the box body 2 to prevent accumulated water from flowing out from the gap between the observation window 23 and the inner wall of the box body 2 to cause environmental pollution; by providing a handle 24, it is convenient to pull the box door 22.

[0057] Working principle: When in use, place the water inlet cover 15 in the accumulated water, start the first water pump 12, absorb the accumulated water, filter the impurities with large particle size in the accumulated water through the second filter screen 6, and the accumulated water enters the installation pipe 5. The flowing water can make the propeller 73 rotate, so that the rotating rod 72 can rotate inside the installation pipe 5, thereby driving the cleaning plate 74 to rotate, so that the brush 75 cleans the outer surface of the second filter screen 6, and then the accumulated water enters the box body 2 through the water inlet hose 13 and the water outlet pipe 14, and passes through the inclined first The filter screen 3 filters tiny impurities in the accumulated water. At this time, the motor 42 is started, and the motor 42 drives the screw rod 41 to rotate, and the screw rod 41 drives the movable plate 43 to move, and the telescopic rod 44 is extended to drive the scraper 45 to contact the surface of the first filter screen 3, so as to scrape off the tiny impurities on the first filter screen 3, and the impurities are discharged through the discharge port 9, and are guided by the discharge guide plate 21 to fall into the collection box 10 for collection, so as to facilitate subsequent processing, and the filtered accumulated water is discharged through the suction pipe 19 and the drainage pipe 20 by the second water pump 18.

[0058] The utility model can prevent the first filter screen 3 and the second filter screen 6 from being blocked by impurities, which would affect the drainage efficiency. There is no need for manual regular cleaning of the first filter screen 3 and the second filter screen 6, which can ensure the use effect of the drainage device and improve work efficiency. The utility model adopts a double filtration method to completely filter the accumulated water, thus preventing the discharged accumulated water from causing environmental pollution.

[0059] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0060] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A water conservancy and hydropower construction drainage device, comprising a base (1), characterized in that: A box body (2) is installed on the base (1), a first filter screen (3) is obliquely arranged in the box body (2), a scraper assembly (4) is arranged above the first filter screen (3), a side of the box body (2) located between the first filter screen (3) and the scraper assembly (4) is connected to a mounting pipe (5) through a pipeline, a second filter screen (6) is arranged in the mounting pipe (5), an automatic cleaning assembly (7) is installed in the mounting pipe (5), a higher end of the first filter screen (3) is connected to the inner wall of the box body (2) through a mounting assembly (8), a discharge port (9) is opened at a lower end of the box body (2) located at the first filter screen (3), a collection box (10) is arranged below the discharge port (9), and a water pumping pipe (19) is arranged at the bottom of the box body (2).

2. The water conservancy and hydropower construction drainage device according to claim 1, characterized in that: A first water pump (12) is provided on the base (1) at one side of the box body (2); a water inlet of the first water pump (12) is connected to the mounting pipe (5) via a water inlet hose (13); and a water outlet of the first water pump (12) is connected to one side of the box body (2) via a water outlet pipe (14).

3. The water conservancy and hydropower construction drainage device according to claim 1, characterized in that: The scraper assembly (4) comprises a screw rod (41) which is rotatably and tiltably arranged in a box body (2), one end of the screw rod (41) passes through the box body (2) and is connected to the output end of a motor (42), a movable plate (43) is mounted on the screw rod (41), a telescopic rod (44) is mounted at the bottom of the movable plate (43), a scraper (45) is mounted on the telescopic end of the telescopic rod (44), and the scraper (45) is capable of contacting the first filter screen (3).

4. The water conservancy and hydropower construction drainage device according to claim 1, characterized in that: The automatic cleaning component (7) comprises a support plate (71) installed in the installation tube (5), a rotating rod (72) is rotatably provided on the support plate (71), a propeller (73) is installed at one end of the rotating rod (72) away from the second filter screen (6), the other end of the rotating rod (72) penetrates the second filter screen (6) and extends out of the second filter screen (6) to be connected with the cleaning plate (74), and a brush (75) is provided on the cleaning plate (74), and the brush (75) is in contact with the second filter screen (6).

5. The water conservancy and hydropower construction drainage device according to claim 2, characterized in that: A water inlet cover (15) is provided at one end of the installation pipe (5) away from the water inlet hose (13), a plurality of spiral strips (16) are provided on the inner wall of the water inlet cover (15), and a support block (17) is installed at the bottom of the water inlet cover (15).

6. The water conservancy and hydropower construction drainage device according to claim 1, characterized in that: The mounting assembly (8) comprises a mounting groove (81) formed on the inner wall of the housing (2); a slide groove (82) connected to the mounting groove (81) is formed at the top and the bottom of the mounting groove (81); a slider (83) is slidably disposed in the slide groove (82); a connecting rod (84) is mounted on the slider (83); the connecting rod (84) extends out of the slide groove (82) and is connected to a clamping plate (85), and the two clamping plates (85) can contact each other; a spring (86) sleeved on the outer surface of the connecting rod (84) is connected between the slider (83) and the inner wall of the slide groove (82).

7. The water conservancy and hydropower construction drainage device according to claim 6, characterized in that: Connecting plates (11) are provided at both ends of the first filter screen (3); the connecting plate (11) is located at the higher end of the first filter screen (3) and is installed between two abutting plates (85); and the connecting plate (11) is located at the lower end of the first filter screen (3) and can be placed on the discharge port (9).

8. The water conservancy and hydropower construction drainage device according to claim 3, characterized in that: Guide rods (46) symmetrically arranged on both sides of the screw rod (41) are installed in the box body (2); the guide rods (46) penetrate the movable plate (43), and the guide rods (46) are slidably connected to the movable plate (43).

9. The water conservancy and hydropower construction drainage device according to claim 1, characterized in that: A second water pump (18) is provided on the base (1) at one side of the box body (2); a water inlet of the second water pump (18) is connected to a water suction pipe (19); and a water outlet of the second water pump (18) is connected to a drainage pipe (20).

10. The water conservancy and hydropower construction drainage device according to claim 1, characterized in that: A box door (22) is hingedly provided on one side of the box body (2), and an observation window (23) and a handle (24) are provided on the box door (22).

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