Water conservancy and hydropower construction foundation pit drainage device

Abstract

The utility model relates to the technical field of drainage devices, and discloses a water conservancy and hydropower construction foundation pit drainage device which comprises an installation frame, and a floating plate is installed in the installation frame in an embedded mode. The water inlet end of the drainage pump is connected with one end of a water inlet pipe, the other end of the water inlet pipe penetrates through the mounting frame and the floating plate and is connected with a filter screen box, the filter screen box is located below the floating plate, and the water outlet end of the drainage pump is connected with a drainage pipe; one end of the supporting frame is rotationally connected to the mounting frame, and the supporting frame can be hoisted or supported. When the device is used, the supporting frame is rotated to the position above the mounting frame, the lifting rope is connected with the supporting frame and lowered, and the device is lifted on the water surface of a foundation pit. The lifting rope is lowered until the supporting frame is in a supporting state, the water level is gradually lowered along with the drainage process, and the supporting frame is supported at the bottom of the foundation pit, so that a certain distance is kept between the filter screen box and slurry in the foundation pit, impurities are prevented from being poured into the filter screen box, and the situation that the impurities enter a drainage pump when water in the foundation pit is about to be drained completely is eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to drainage device technical field, especially a kind of water conservancy and hydropower construction foundation pit drainage device. BACKGROUND

[0002] In water conservancy and hydropower engineering construction, foundation pit drainage is the key link to ensure the smooth progress of the project. During construction, groundwater, rainwater and construction water will continue to flow into the foundation pit, which may cause water accumulation in the foundation pit, affecting construction progress, quality and stability of the foundation pit if not promptly and effectively removed.

[0003] Patent with announcement number CN222065524U discloses a kind of foundation pit drainage device for water conservancy construction, and the floating assembly in the patent is driven by the floating capacity of itself to float the filter net box on the water surface, the filter net box floats on the water surface of foundation pit to prevent sinking and contacts with the mud and gravel at the bottom of foundation pit, when the water volume in foundation pit is too little, the anti-sinking assembly will first contact with ground or mud, the anti-sinking assembly supports the filter net box to a certain height, so that the filter net box maintains a certain spacing with the mud in foundation pit, to prevent mud from pouring into the filter net box, thereby avoiding the problem that the floating assembly cannot float when the water in the foundation pit is about to be drained, causing the mud to contact with the filter net box.

[0004] However, in actual application process, the patent exposes some use defects: generally, the water pump cannot pump water when there is no liquid, and the patent uses a long water inlet pipe, so the distance between the water pump and the water in the foundation pit is too far, which makes the drainage effect unsatisfactory; in addition, the device does not set up hoisting structure, which is not convenient to hoist when in use. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of water conservancy and hydropower construction foundation pit drainage device to overcome the above-mentioned situation deficiency.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A kind of water conservancy and hydropower construction foundation pit drainage device, comprising:

[0008] mounting frame, the mounting frame is embedded with floating plate;

[0009] drainage pump is installed on the upper surface of the mounting frame, the water inlet end of the drainage pump is connected with one end of water inlet pipe, the other end of the water inlet pipe penetrates the mounting frame and floating plate and is connected with filter net box, the filter net box is located below the floating plate, and the water outlet end of the drainage pump is connected with drainage pipe; and

[0010] one end is rotatably connected to the mounting frame, and the support frame can be hoisted or supported.

[0011] Further, the filter screen box is a hollow cylindrical shape, and an upper end of the filter screen box is flange-connected to another end of the water inlet pipe.

[0012] Further, the filter screen box is a hollow cylindrical shape, and an upper end of the filter screen box is flange-connected to another end of the water inlet pipe.

[0013] The side wall and the bottom of the filter screen box are provided with filter holes, and the inner side wall and the outer side wall of the filter screen box are slidably connected with an inner cleaning ring and an outer cleaning ring one by one.

[0014] A driving assembly is arranged for driving the inner cleaning ring and the outer cleaning ring to reciprocate along the axis direction of the filter screen box.

[0015] Further, the driving assembly comprises:

[0016] A driving shaft is rotatably connected in the filter screen box, the driving shaft is coaxially arranged with the filter screen box, a closed track groove is arranged on the outer side wall of the driving shaft, and the track groove is composed of a plurality of line segments connected end to end.

[0017] A plurality of sliding grooves are arranged on the side wall of the filter screen box in the vertical direction, a plurality of connecting rods are slidably connected in the sliding grooves one by one, one end of the connecting rod is fixedly connected with the inner cleaning ring and the outer cleaning ring, the other end of the connecting rod is fixedly connected with a sliding protrusion, and the sliding protrusion is slidably connected with the track groove.

[0018] A plurality of paddles are fixedly connected to the end of the driving shaft close to the water inlet pipe.

[0019] Further, the end of the driving shaft away from the water inlet pipe is rotatably connected with the bottom plate of the filter screen box, a connecting frame is fixedly connected in the filter screen box, and the end of the driving shaft close to the water inlet pipe is rotatably connected with the connecting frame.

[0020] Further, the plurality of paddles are distributed in a circumferential array along the axis of the driving shaft.

[0021] Further, the line segments are smooth wavy lines.

[0022] Further, a driving motor is arranged, the drainage pump is a centrifugal pump, and an output shaft of the driving motor is drivingly connected with an impeller of the drainage pump.

[0023] Further, the support frame comprises:

[0024] a rectangular frame; and

[0025] two support legs of an inverted "Y" shape structure are fixedly connected to two sides of the rectangular frame, and the ends of the support legs away from the rectangular frame are rotatably connected with the mounting frame.

[0026] Further, a plurality of lifting rings are mounted on the rectangular frame.

[0027] Compared with the prior art, the utility model has at least the following advantages:

[0028] In use, the support frame is first rotated to above the mounting frame, the support frame is connected by a lifting rope and is lowered, so that the device is hoisted on the water surface of the foundation pit; at this time, the mounting frame is on the water surface by virtue of the buoyancy of the floating plate, the drainage pump is above the water level, and the filter screen box is below the water level. The lifting rope is further lowered to the support frame in a supporting state, the support frame is below the mounting frame, the water level gradually decreases along with the drainage process, and the support frame is supported at the bottom of the foundation pit, so that the filter screen box and the mud in the foundation pit maintain a certain distance, impurities are prevented from flowing into the filter screen box, and the situation that impurities enter the drainage pump when the water in the foundation pit is about to be drained is eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0030] Figure 1 It is a whole structure schematic view of the water conservancy and hydropower construction foundation pit drainage device of the utility model;

[0031] Figure 2 It is an assembly sectional view of the filter screen box, the driving shaft, the inner cleaning ring, the outer cleaning ring and the connecting rod and other components of the utility model;

[0032] Figure 3 It is an assembly schematic view of the filter screen box and the connecting frame of the utility model;

[0033] Figure 4 It is an assembly schematic view of the inner cleaning ring, the outer cleaning ring, the connecting rod and the sliding protrusion of the utility model.

[0034] The drawings are as follows: 1, mounting frame; 2, floating plate; 3, drainage pump; 4, water inlet pipe; 5, filter screen box; 6, drain pipe; 7, support frame; 8, filter hole; 9, inner cleaning ring; 10, outer cleaning ring; 11, driving shaft; 12, track groove; 13, sliding groove; 14, connecting rod; 15, sliding protrusion; 16, paddle; 17, connecting frame; 18, driving motor; 701, rectangular frame; 702, supporting leg; 703, lifting ring. DETAILED DESCRIPTION

[0035] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0037] With reference to Figure 1 The present application provides a water conservancy and hydropower construction foundation pit drainage device, mainly including a mounting frame 1, a floating plate 2, a drainage pump 3, a filter screen box 5 and a support frame 7.

[0038] The mounting frame 1 constitutes the basic framework structure of the entire drainage device, wherein a floating plate 2 is embedded, the density of the floating plate 2 is less than that of water, and the position can be automatically adjusted according to the water level change, so that the mounting frame 1 can float on the water surface at different water levels. The drainage pump 3 is installed on the upper surface of the mounting frame 1, the water inlet end thereof is connected with one end of a water inlet pipe 4, the other end of the water inlet pipe 4 penetrates the mounting frame 1 and is connected with the filter screen box 5 after the floating plate 2. The filter screen box 5 is used for filtering impurities in water to prevent the impurities from entering the drainage pump 3, and is located below the floating plate 2. The water outlet end of the drainage pump 3 is connected with a drainage pipe 6, so as to drain the extracted water out of the foundation pit. One end of the support frame 7 is rotatably connected with the mounting frame 1, and the support frame 7 can be hoisted or supported by rotating.

[0039] In use, the support frame 7 is first rotated to above the mounting frame 1, a lifting rope is connected with the support frame 7 and is lowered, so that the device is hoisted on the water surface of the foundation pit. At this time, the mounting frame 1 is on the water surface by virtue of the buoyancy of the floating plate 2, the drainage pump 3 is above the water level, and the filter screen box 5 is below the water level. The lifting rope is further lowered to a supporting state of the support frame 7, and the support frame 7 is below the mounting frame 1. As the water level gradually decreases along with the drainage process, the support frame 7 is supported at the bottom of the foundation pit, so as to ensure that the filter screen box 5 maintains a certain distance from the mud in the foundation pit, prevents impurities from flowing into the filter screen box 5, and prevents the impurities from entering the drainage pump 3 when the water in the foundation pit is about to be drained. After the use is completed, the drainage pipe 6 is temporarily fixed and lifted, the state of the drainage pump 3 is kept stable, the support frame 7 is hoisted by the lifting rope, and when the support frame 7 is above the mounting frame 1, the drainage pipe 6 is released from the fixing, and the lifting rope is lifted to complete the drainage work.

[0040] It should be noted that in the above operation process, the drainage pipe 6 should be prevented from penetrating into the support frame 7, so that the support frame 7 cannot be turned over during the lowering process. And during the drainage process, it should be ensured that there is always a sufficient length of the drainage pipe 6 in the foundation pit.

[0041] With reference to Figures 2-3 The filter net box 5 is in the shape of a hollow cylinder, and the upper end is connected to the other end of the water inlet pipe 4 by a flange. In order to achieve water filtration, the side wall and the bottom of the filter net box 5 are provided with filter holes 8, and the inner cleaning ring 9 and the outer cleaning ring 10 are respectively connected to the inner side wall and the outer side wall of the filter net box 5 in a sliding manner. The driving assembly is used to drive the inner cleaning ring 9 and the outer cleaning ring 10 to reciprocate along the axis direction of the filter net box 5, so as to effectively clean the side wall and the outer side wall of the filter net box 5, and prevent the filter holes 8 from being blocked.

[0042] With reference to Figure 2 and Figure 4 The driving assembly comprises a driving shaft 11, a connecting rod 14 and a sliding protrusion 15. The driving shaft 11 is connected to the filter net box 5 in a rotating manner and is coaxial with the filter net box 5. The outer side wall of the driving shaft 11 is surrounded by a closed but segmented track groove 12, which is composed of a plurality of line segments connected end to end and is in the shape of a smooth wavy line. The side wall of the filter net box 5 is provided with a plurality of sliding grooves 13 along the axis direction thereof, and the connecting rod 14 is connected to the inner cleaning ring 9 and the outer cleaning ring 10 in a sliding manner in the plurality of sliding grooves 13. One end of the connecting rod 14 is fixedly connected to the inner cleaning ring 9 and the outer cleaning ring 10, and the other end is fixedly connected to the sliding protrusion 15, which is connected to the track groove 12 in a sliding manner. A plurality of paddles 16 are fixedly connected to the driving shaft 11 near the end of the water inlet pipe 4, and the paddles 16 are arranged in a circular array along the axis of the driving shaft 11.

[0043] Preferably, the other end of the driving shaft 11 is rotatably connected to the bottom plate of the filter net box 5, and the filter net box 5 is fixedly connected to a connecting frame 17. The end of the driving shaft 11 near the water inlet pipe 4 is rotatably connected to the connecting frame 17.

[0044] When draining water, the water flow enters the filter net box 5 through the filter holes 8 in the side wall of the filter net box 5 and contacts the paddles 16. The water flow drives the paddles 16 and the driving shaft 11 to rotate, drives the sliding protrusion 15 to slide in the track groove 12, and drives the connecting rod 14 to reciprocate in the track groove 12, so as to realize the relative sliding between the inner cleaning ring 9 and the inner side wall of the filter net box 5 and the outer cleaning ring 10 and the outer side wall of the filter net box 5, scrape off the impurities on the filter net box 5, and avoid blocking the filter holes 8.

[0045] With reference to Figure 1 The utility model also has a driving motor 18, and the drainage pump 3 is a centrifugal pump. The output shaft of the driving motor 18 is in transmission connection with the impeller of the drainage pump 3.

[0046] The support frame 7 comprises a rectangular frame 701 and two support legs 702. The support legs 702 are in the shape of an inverted "Y" and are fixedly connected to the two side edges of the rectangular frame 701, respectively. The ends of the support legs 702 away from the rectangular frame 701 are rotatably connected to the mounting frame 1. In order to facilitate the hoisting operation of the support frame 7, a plurality of lifting rings 703 are installed on the rectangular frame 701, and the lifting ropes can be matched with the lifting rings 703.

[0047] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0048] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical solutions of the utility model made by the ordinary skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the utility model claims.

Claims

1. A water conservancy and hydropower construction foundation pit drainage device, characterized in that, The utility model relates to a kind of water filter and drainage system, including: Mounting frame (1), the mounting frame (1) is embedded and mounted with floating plate (2); Drainage pump (3) is installed on the upper surface of the mounting frame (1), the water inlet end of the drainage pump (3) is connected with one end of water inlet pipe (4), the other end of the water inlet pipe (4) is connected with filter screen box (5) and is penetrated through the mounting frame (1) and floating plate (2), the filter screen box (5) is located below the floating plate (2), the water outlet end of the drainage pump (3) is connected with drain pipe (6);And One end is rotatably connected on the mounting frame (1), and support frame (7) can be hoisted or supported.

2. The water conservancy construction foundation pit drainage device according to claim 1, characterized in that, The filter screen box (5) is hollow cylindrical, and the upper end of the filter screen box (5) is flange-connected with the other end of the water inlet pipe (4).

3. The water conservancy construction foundation pit drainage device according to claim 2, characterized in that, Further including: Filter hole (8) is arranged on the side wall and bottom of the filter screen box (5), and the inner cleaning ring (9) and the outer cleaning ring (10) are slidably connected on the inner side wall and the outer side wall of the filter screen box (5) one by one; And A drive assembly is used to drive the inner cleaning ring (9) and the outer cleaning ring (10) to reciprocate along the axis direction of the filter screen box (5).

4. The water conservancy construction foundation pit drainage device according to claim 3, characterized in that, The drive assembly includes: A drive shaft (11) is rotatably connected in the filter screen box (5), the drive shaft (11) is coaxially arranged with the filter screen box (5), and a closed track groove (12) is arranged on the outer side wall of the drive shaft (11), and the track groove (12) is formed by a plurality of broken lines connected end to end. A plurality of sliding grooves (13) are arranged on the side wall of the filter screen box (5) in the vertical direction, and a plurality of connecting rods (14) are slidably connected in the sliding grooves (13) one by one, one end of the connecting rod (14) is fixedly connected with the inner cleaning ring (9) and the outer cleaning ring (10), the other end of the connecting rod (14) is fixedly connected with a sliding protrusion (15), and the sliding protrusion (15) is slidably connected with the track groove (12);And A plurality of paddles (16) are fixedly connected to one end of the drive shaft (11) close to the water inlet pipe (4).

5. The water conservancy construction foundation pit drainage device according to claim 4, characterized in that, The other end of the drive shaft (11) away from the water inlet pipe (4) is rotatably connected with the bottom plate of the filter screen box (5), a connecting frame (17) is fixedly connected in the filter screen box (5), and one end of the drive shaft (11) close to the water inlet pipe (4) is rotatably connected with the connecting frame (17).

6. The water conservancy construction foundation pit drainage device according to claim 4, characterized in that, The plurality of paddles (16) are distributed in a circumferential array along the axis of the drive shaft (11).

7. The water conservancy construction foundation pit drainage device according to claim 4, characterized in that, The broken line is a smooth wavy line shape.

8. The water conservancy construction foundation pit drainage device according to claim 1, characterized in that, Further including a drive motor (18), the drainage pump (3) is a centrifugal pump, and the output shaft of the drive motor (18) is drivingly connected with the impeller of the drainage pump (3).

9. The water conservancy construction foundation pit drainage device according to claim 1, characterized in that, The support frame (7) includes: A rectangular frame (701);And Two support legs (702) are fixedly connected on both sides of the rectangular frame (701) and have an inverted "Y" shape structure, and one end of the support leg (702) away from the rectangular frame (701) is rotatably connected with the mounting frame (1).

10. The water conservancy construction foundation pit drainage device according to claim 9, characterized in that, A plurality of lifting eyes (703) are mounted on the rectangular frame (701).

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