Temporary dewatering and drainage device for foundation pit bearing platform

Abstract

The utility model belongs to the technical field of building construction, and particularly provides a foundation pit bearing platform temporary dewatering and drainage device which comprises a fixing support, a PVC pipe with holes is installed in a foundation pit dewatering well, a water pump is installed in the PVC pipe with holes, the water pump is connected with the fixing support through an adjusting mechanism, a water pipe is installed on the water pump, and the adjusting mechanism comprises a buoyancy assembly, a lifting rope and a winding assembly. The buoyancy assembly floats on the water surface, the water pump is fixedly connected with the buoyancy assembly through the mounting frame, the winding assembly is rotationally mounted on the fixing support, the buoyancy assembly is connected with the winding assembly through a lifting rope, and the buoyancy assembly freely moves along with changes of the water level. Through the arrangement of the fixing support, the PVC pipe with the holes, the buoyancy assembly, the lifting rope and the winding assembly, it can be ensured that the water pump is always suspended on the side close to the water surface and can automatically move along with the water level, on one hand, silt entering the water pump can be effectively reduced, the service life is prolonged, on the other hand, manual adjustment procedures can be reduced, and the production efficiency is improved. The drainage efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction relates to a temporary dewatering device of foundation pit pile cap. BACKGROUND

[0002] The foundation pit dewatering is usually in the support design, through the early survey report, calculates the underground water level of the area, lays out the foundation pit dewatering well, and the water in the foundation pit dewatering well is pumped out by the water pump to achieve the purpose of dewatering.

[0003] The existing water pump is mostly placed directly at the bottom of the foundation pit dewatering well or fixedly installed in the water of a certain height, the former can ensure that the water pump is always in the water, but the bottom silt is more, which will affect the service life to some extent, and the latter can avoid the water pump contacting more silt, but as the water level decreases, the suspension height of the water pump needs to be adjusted regularly, which is troublesome. UTILITY MODEL CONTENT

[0004] In view of the technical problems in the prior art, the utility model provides a temporary dewatering device of foundation pit pile cap, which comprises a fixed support installed at the wellhead of a foundation pit dewatering well, a perforated PVC pipe is installed in the foundation pit dewatering well, a water pump is installed in the perforated PVC pipe, and the water pump is connected with the fixed support through an adjusting mechanism, a water pipe for drainage is installed on the water pump, the adjusting mechanism comprises a buoyancy assembly, a lifting rope and a winding assembly, the buoyancy assembly floats on the water surface and is slidably connected with the perforated PVC pipe, the water pump is fixedly connected with the bottom of the buoyancy assembly through a mounting bracket, the winding assembly is rotatably installed on the fixed support, the buoyancy assembly is connected with the winding assembly through the lifting rope, and the buoyancy assembly freely moves with the change of the water level.

[0005] Further, the circumference of the perforated PVC pipe is wrapped with gauze.

[0006] Further, the gauze comprises two layers.

[0007] Further, the bottom of the water pump is provided with a filter plate, the filter plate is slidably connected with the perforated PVC pipe, and a plurality of small holes for water passing through are formed in the filter plate.

[0008] Further, the winding assembly comprises a rotating wheel and a counterweight, the rotating wheel is rotatably connected with the fixed support through a connecting bracket, one end of the lifting rope away from the buoyancy assembly is fixedly connected with the counterweight through the rotating wheel, and the counterweight moves along the vertical direction under the action of the buoyancy assembly.

[0009] Further, the winding assembly further comprises a limiting sleeve, the limiting sleeve is fixedly installed on the connecting support through a connecting rod and is located directly above the counterweight, one end of the lifting rope away from the buoyancy assembly is fixedly connected with the counterweight in sequence through a rotating wheel and the limiting sleeve, and an inner diameter of the limiting sleeve is smaller than a size of the counterweight.

[0010] Further, the buoyancy assembly comprises a cross-shaped sliding rod and a buoyancy plate, the sliding rod is fixedly installed on the top of the buoyancy plate, and the sidewall of the perforated PVC pipe is provided with a cross-shaped sliding groove, and the sliding rod is slidingly installed in the sliding groove.

[0011] Beneficial effects:

[0012] 1. In the utility model, through the setting of the fixed support, the perforated PVC pipe, the buoyancy assembly, the lifting rope and the winding assembly, the water pump can be ensured to be always suspended on one side close to the water surface and can automatically move along with the water level, on one hand, the water pump can effectively reduce the entry of silt and improve the service life, on the other hand, the artificial adjustment process can be reduced and the drainage efficiency can be improved.

[0013] 2. In the utility model, through the setting of the two layers of gauze, the water entering the perforated PVC pipe can be filtered, the entry of silt into the water pump can be effectively reduced, and the service life of the water pump can be further improved; through the setting of the filter plate, the water in the perforated PVC pipe can be filtered, the entry of silt into the water pump can be effectively reduced, and the service life of the water pump can be further improved; specifically during the lowering process of the perforated PVC pipe or the subsequent use, the silt or other impurities in the water can be filtered through the filter plate, and the impurities floating in the water in the original perforated PVC pipe or the impurities entering from the bottom of the perforated PVC pipe can be prevented from entering the space where the water pump is located.

[0014] 3. In the utility model, through the setting of the rotating wheel and the counterweight, the length of the lifting rope can be automatically adjusted by the counterweight and the gravity of the water pump itself, the lifting rope can be ensured to be always in a taut state, and the energy can be saved by adopting the non-powered control; specifically when the water level drops, the buoyancy assembly will drive the water pump to synchronously drop, so that one end of the lifting rope connected with the buoyancy assembly drops, and the other end of the lifting rope drives the counterweight to rise; when the water level rises, the buoyancy assembly will drive the water pump to synchronously rise, so that one end of the lifting rope connected with the buoyancy assembly rises, and the other end of the lifting rope drops under the action of the counterweight; in combination with the setting of the limiting sleeve, the upward displacement of the counterweight can be limited, the lifting rope can be prevented from being separated from the rotating wheel, and the safety performance can be improved.

[0015] 4. In the utility model, through the setting of the cross-shaped sliding rod, the buoyancy plate and the cross-shaped sliding groove, the linear movement of the water pump can be ensured, and the perforated PVC pipe can be supported by the sliding rod, and the structural strength can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the buoyancy component and water pump installation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the winding assembly of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Fixed bracket; 2. Perforated PVC pipe; 3. Water pump; 4. Buoyancy assembly; 41. Sliding rod; 42. Buoyancy plate; 5. Lifting rope; 6. Winding assembly; 61. Rotating wheel; 62. Counterweight; 63. Limiting sleeve; 7. Filter plate; 8. Connecting bracket; 9. Slide groove. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] This utility model provides a temporary drainage device for foundation pit foundations, such as... Figure 1 , Figure 2As shown, the system includes a fixed support 1 installed at the opening of a dewatering well in the foundation pit. A perforated PVC pipe 2 is installed inside the dewatering well. A water pump 3 is installed inside the perforated PVC pipe 2, and the water pump 3 is connected to the fixed support 1 via an adjustment mechanism. A water pipe for drainage is installed on the water pump 3. The adjustment mechanism includes a buoyancy component 4, a suspension rope 5, and a winding component 6. The buoyancy component 4 floats on the water surface and is slidably connected to the perforated PVC pipe 2. The water pump 3 is fixedly connected to the bottom of the buoyancy component 4 via a mounting bracket. The winding component 6 is rotatably installed on the fixed support 1. The buoyancy component 4 is connected to the winding component 6 via the suspension rope 5. The buoyancy component 4 moves freely with changes in water level.

[0029] In this embodiment, by setting up the fixed bracket 1, the perforated PVC pipe 2, the buoyancy component 4, the suspension rope 5 and the winding component 6, it can be ensured that the water pump 3 is always suspended on the side close to the water surface and can move automatically with the water level. On the one hand, this can effectively reduce the amount of mud and sand entering the water pump 3 and improve its service life. On the other hand, it can also reduce the manual adjustment process and improve the drainage efficiency.

[0030] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, the circumferential surface of the perforated PVC pipe 2 is wrapped with gauze; the gauze consists of two layers.

[0031] In this embodiment, the water entering the perforated PVC pipe 2 can be filtered by the two layers of gauze, which can effectively reduce the amount of sediment entering the water pump 3 and further improve the service life of the water pump 3.

[0032] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, the bottom of the water pump 3 is provided with a filter plate 7, which is slidably connected to the perforated PVC pipe 2. The filter plate 7 has several small holes for water to pass through.

[0033] In this embodiment, the filter plate 7 can filter the water in the perforated PVC pipe 2, effectively reducing the amount of sediment entering the water pump 3 and further improving the service life of the water pump 3. Specifically, during the lowering of the perforated PVC pipe 2 or in subsequent use, the filter plate 7 can filter the sediment or other impurities in the water, preventing impurities floating in the water in the original perforated PVC pipe 2 or impurities entering from the bottom of the perforated PVC pipe 2 from entering the space where the water pump 3 is located.

[0034] In this utility model, preferably, such as Figure 1 , Figure 2 and Figure 3As shown, the winding assembly 6 includes a rotating wheel 61 and a counterweight 62. The rotating wheel 61 is rotatably connected to the fixed bracket 1 via a connecting bracket 8. The end of the lifting rope 5 away from the buoyancy component 4 is fixedly connected to the counterweight 62 via the rotating wheel 61. The counterweight 62 moves vertically under the action of the buoyancy component 4. The winding assembly 6 also includes a limiting sleeve 63. The limiting sleeve 63 is fixedly installed on the connecting bracket 8 via a connecting rod and is located directly above the counterweight 62. The end of the lifting rope 5 away from the buoyancy component 4 is fixedly connected to the counterweight 62 via the rotating wheel 61 and the limiting sleeve 63 in sequence. The inner diameter of the limiting sleeve 63 is smaller than the size of the counterweight 62.

[0035] In this embodiment, the rotating wheel 61 and the counterweight 62 enable automatic adjustment of the length of the hoisting rope 5 using the weight of the counterweight 62 and the water pump 3, ensuring that the hoisting rope 5 is always taut. This energy-saving, non-powered control is employed. Specifically, when the water level drops, the buoyancy component 4 drives the water pump 3 to descend synchronously, causing one end of the hoisting rope 5 connected to the buoyancy component 4 to descend while the other end of the hoisting rope 5 drives the counterweight 62 to rise. When the water level rises, the buoyancy component 4 drives the water pump 3 to rise synchronously, causing one end of the hoisting rope 5 connected to the buoyancy component 4 to rise while the other end of the hoisting rope 5 descends under the action of the counterweight 62. Combined with the limiting sleeve 63, the upward displacement of the counterweight 62 can be limited, preventing the hoisting rope 5 from detaching from the rotating wheel 61 and improving safety performance.

[0036] In this utility model, preferably, such as Figure 1 and Figure 2 As shown, the buoyancy component 4 includes a cross-shaped sliding rod 41 and a buoyancy plate 42, wherein the buoyancy plate 42 can be a foam board, an air bag, or other buoyancy-containing structure. The sliding rod 41 is fixedly installed on the top of the buoyancy plate 42. The side wall of the perforated PVC pipe 2 is provided with a cross-shaped sliding groove 9, and the sliding rod 41 is slidably installed in the sliding groove 9.

[0037] In this embodiment, the cross-shaped slide bar 41, the buoyancy plate 42 and the cross-shaped slide groove 9 are designed to ensure the linear movement of the water pump 3. At the same time, the slide bar 41 can support the perforated PVC pipe 2 and improve its structural strength.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A temporary dewatering device for a foundation pit pier, comprising a fixed support (1) installed at the opening of a dewatering well in the foundation pit, wherein a perforated PVC pipe (2) is installed inside the dewatering well, a water pump (3) is installed inside the perforated PVC pipe (2), and the water pump (3) is connected to the fixed support (1) via an adjusting mechanism, and a water pipe for drainage is installed on the water pump (3), characterized in that, The adjustment mechanism includes a buoyancy component (4), a suspension rope (5), and a winding component (6). The buoyancy component (4) floats on the water surface and is slidably connected to the perforated PVC pipe (2). The water pump (3) is fixedly connected to the bottom of the buoyancy component (4) through a mounting bracket. The winding component (6) is rotatably mounted on a fixed bracket (1). The buoyancy component (4) is connected to the winding component (6) through the suspension rope (5). The buoyancy component (4) moves freely with the change of water level.

2. The temporary dewatering device for foundation pit piers according to claim 1, characterized in that, The circumferential surface of the perforated PVC pipe (2) is wrapped with gauze.

3. The temporary dewatering device for foundation pit piers according to claim 2, characterized in that, The gauze consists of two layers.

4. A temporary dewatering device for foundation pit piers according to claim 3, characterized in that, The bottom of the water pump (3) is provided with a filter plate (7), which is slidably connected to the perforated PVC pipe (2). The filter plate (7) has several small holes for water to pass through.

5. A temporary dewatering device for foundation pit piers according to any one of claims 1 to 4, characterized in that, The winding assembly (6) includes a rotating wheel (61) and a counterweight (62). The rotating wheel (61) is rotatably connected to the fixed bracket (1) via a connecting bracket (8). The end of the suspension rope (5) away from the buoyancy assembly (4) is fixedly connected to the counterweight (62) via the rotating wheel (61). The counterweight (62) moves vertically under the action of the buoyancy assembly (4).

6. A temporary dewatering device for foundation pit piers according to claim 5, characterized in that, The winding assembly (6) also includes a limiting sleeve (63), which is fixedly installed on the connecting bracket (8) by a connecting rod and is located directly above the counterweight (62). The end of the lifting rope (5) away from the buoyancy assembly (4) is fixedly connected to the counterweight (62) via the rotating wheel (61) and the limiting sleeve (63) in sequence. The inner diameter of the limiting sleeve (63) is smaller than the size of the counterweight (62).

7. A temporary dewatering device for foundation pit piers according to claim 6, characterized in that, The buoyancy assembly (4) includes a cross-shaped slide bar (41) and a buoyancy plate (42). The slide bar (41) is fixedly installed on the top of the buoyancy plate (42). The side wall of the perforated PVC pipe (2) is provided with a cross-shaped groove (9). The slide bar (41) is slidably installed in the groove (9).

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