Water pumping device for foundation pit dewatering

Abstract

The utility model provides a water pumping device for foundation pit dewatering, which comprises a bottom plate for mounting a water pump and a winding component, the water pump is used for pumping water; the winding assemblies are symmetrically arranged on the two sides of the water suction pump and used for winding two water hoses detachably connected with a water inlet and a water outlet of the water suction pump correspondingly; each winding assembly comprises a winding roller, a belt pressing component, a drainage component and a power device. The winding roller is used for winding the water hose; the water hose is clamped by the hose pressing component; residual water in the water hose is squeezed out through the drainage component; the power device is used for simultaneously driving the rotation of the winding roller and the reciprocating linear displacement of the drainage component, and the water hose is uniformly wound by means of the reciprocating linear displacement of the drainage component. According to the water pumping device, water pumping operation can be conducted on the interior of a foundation pit, a water hose can be automatically wound in order after operation is completed, residual water in the water hose can be squeezed out in the winding process, winding is convenient and fast, efficiency is high, and operation is easy.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit dewatering technology, and more specifically to a pumping device for foundation pit dewatering. Background Technology

[0002] Dewatering of foundation pits refers to the dewatering work carried out when the groundwater level is higher than the bottom of the excavation pit and groundwater will continuously seep into the pit. In order to ensure that the foundation pit can be constructed under dry conditions and to prevent slope instability, quicksand in the foundation, pit bottom heave, piping at the bottom of the pit and a decrease in the bearing capacity of the foundation, pumping devices are required for foundation pit dewatering.

[0003] Existing pumping devices used for foundation pit dewatering require the water pipes to be disassembled and stored after pumping is completed. This is very inconvenient when rewinding the water pipes, and the rewinding work is done manually, which is time-consuming and labor-intensive. The residual water in the water pipes cannot be drained in a timely and effective manner, which further hinders the smooth rewinding of the water pipes. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes a pumping device for dewatering foundation pits, which can pump water from the inside of the foundation pit. After the operation is completed, the water hose can be automatically and neatly wound up, and residual water in the water hose can be squeezed out during the winding process. The winding is convenient, efficient and easy to operate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pumping device for dewatering foundation pits, comprising:

[0007] The base plate is used to install the water pump and winding assembly;

[0008] The water pump is used for pumping water;

[0009] The winding assembly includes a pair, symmetrically arranged on both sides of the water pump, for winding two sets of water hoses that are detachably connected to the water pump inlet and outlet, respectively; each winding assembly includes a winding roller, a pressure member, a drainage member, and a power unit; the winding roller can rotate around the central axis; the pressure member includes a tensioning element and a pressure plate, and a gap is left between the pressure plate and the outer roller surface of the winding roller along the radial direction of the roller body; the pressure plate can clamp or loosen the water hose passing through the gap by the elastic force of the tensioning element, and the clamped water hose is held between the pressure plate and the outer roller surface of the winding roller; The drainage component is located outside the take-up roller and includes a first drainage roller and a second drainage roller parallel to the take-up roller. The first drainage roller and the second drainage roller can rotate around their respective central axes by external force, face each other with a gap, and the gap between them serves as a drainage area. The gap is adjustable. The water tape passing through the drainage area is held between the outer roller surfaces of the first drainage roller and the second drainage roller. The drainage component as a whole can reciprocate linearly along the entire length of the take-up roller and along the axial direction of the take-up roller. The power device is used to simultaneously drive the rotation of the take-up roller and the reciprocating linear displacement of the drainage component.

[0010] The structural features of this utility model also lie in:

[0011] In the winding assembly: the winding roller is mounted on the top of the base plate by a winding frame, the roller body is arranged horizontally, and the roller shaft is supported on the winding frame by bearings.

[0012] In the winding assembly: the pressure plate assembly includes a pressure plate, connecting rods, and springs. The connecting rods are provided in pairs, arranged radially along the length of the winding roller and spaced apart axially along the winding roller. A pair of matching connecting holes are formed on the winding roller according to the outer diameter and position of the pair of connecting rods. The connecting holes are formed radially inward from the outer roller surface of the winding roller. One end of the pair of connecting rods passes through the pair of connecting holes and is tensioned between them and the hole wall by a spring. The other end is connected to the pressure plate, which supports the pressure plate on the periphery of the outer roller surface of the winding roller. The deformation direction of the spring is set along the length of the connecting rod. The pair of springs serve as the tensioning elements.

[0013] In the winding assembly: the drainage component includes a drainage frame, a first drainage roller, a second drainage roller, and an adjusting component. The number of the first drainage roller and the second drainage roller is equal and there is at least one of each. They are arranged vertically opposite each other. Each roller can rotate by the friction between the outer circumference of the roller and the water belt. The installation position of the first drainage roller is adjustable vertically by the adjusting component, while the installation position of the second drainage roller is fixed.

[0014] In the winding assembly: the adjusting component includes an adjusting screw, limiting rods, and a mounting frame. The two ends of the first drainage roller shaft are rotatably supported on the mounting frame by bearings. The two ends of the second drainage roller shaft are rotatably supported on the drainage frame by bearings. The mounting frame is hoisted by the adjusting screw and a pair of limiting rods symmetrically arranged on both sides of the adjusting screw. The adjusting screw is threaded into a threaded hole reserved on the drainage frame, passes through the threaded hole, and its lower end is rotatably connected to the mounting frame. The pair of limiting rods slide vertically through a pair of pre-reserved limiting holes on the drainage frame, and their lower ends are fixedly connected to the mounting frame.

[0015] In the winding assembly: the power unit includes a drive motor, a transmission mechanism, and a reciprocating linear displacement mechanism. One end of the winding roller shaft is coaxially connected to the motor shaft of the drive motor, and the other end is coaxially connected to the input shaft of the transmission mechanism. The reciprocating linear displacement mechanism includes a reciprocating lead screw, a lead screw sleeve, a sliding sleeve, and a sliding rod. The output shaft of the transmission mechanism is coaxially connected to one end of the reciprocating lead screw, driving the reciprocating lead screw to rotate synchronously. The lead screw sleeve is threaded onto the reciprocating lead screw, fixedly connected to the sliding sleeve, and fixedly supports the drainage component. The sliding sleeve is slidably sleeved on the sliding rod. The sliding rod and the reciprocating lead screw are spaced apart, parallel to the winding roller, and arranged along the entire length of the roller.

[0016] The top end of the lead screw sleeve is fixedly connected to the bottom end of the drainage frame.

[0017] The transmission mechanism is a chain drive mechanism. The axle of the driving sprocket is coaxially connected to the axle of the take-up roller, and the axle of the driven sprocket is coaxially connected to the reciprocating lead screw. The transmission chain is wound between the driving sprocket and the driven sprocket.

[0018] The base has casters at the four corners and a handrail on one side.

[0019] Compared with existing technologies, the beneficial effects of this utility model are reflected in:

[0020] This utility model is easy to move and can be used for foundation pit dewatering operations. On this basis, it greatly simplifies the water hose winding work. The water hose is wound up using a winding roller with a pressing component. During the winding process, the drainage component helps to drain the residual water in the water hose. The power device simultaneously drives the rotation of the winding roller and the reciprocating linear displacement of the drainage component. The reciprocating linear displacement of the drainage component helps to evenly wind the water hose onto the winding roller. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the winding assembly;

[0023] Figure 3 This is a structural diagram of the drainage components;

[0024] Figure 4 This is a structural schematic diagram of the pressure belt component.

[0025] In the diagram, 1 is a water pump; 21 is a take-up roller; 22 is a take-up frame; 31 is a pressure plate; 32 is a connecting rod; 33 is a spring; 34 is a connecting hole; 41 is a drainage frame; 42 is a first drainage roller; 43 is a second drainage roller; 44 is an adjusting screw; 45 is a limiting rod; 46 is a mounting frame; 47 is a threaded hole; 48 is a limiting hole; 51 is a drive motor; 52 is a drive sprocket; 53 is a driven sprocket; 54 is a transmission chain; 55 is a reciprocating screw; 56 is a screw sleeve; 57 is a sliding sleeve; 58 is a sliding rod; 59 is a cross plate; 61 is a base plate; 62 is a caster; 63 is a handrail; and 7 is a water hose. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please refer to Figures 1 to 4 The pumping device for dewatering the foundation pit in this embodiment includes:

[0028] Base plate 61 is used to install water pump 1 and winding assembly;

[0029] Water pump 1 is used for pumping water;

[0030] The winding assembly comprises a pair, symmetrically positioned on both sides of the water pump 1, for winding two sets of water hoses 7 that are detachably connected to the inlet and outlet of the water pump 1, respectively. Each winding assembly includes a winding roller 21, a pressure component, a drainage component, and a power unit. The winding roller 21 is rotatable around a central axis. The pressure component includes a tensioning element and a pressure plate 31. A gap is left radially between the pressure plate 31 and the outer roller surface of the winding roller 21. The pressure plate 31 can clamp or release the water hose 7 passing through the gap by the elastic force of the tensioning element. The clamped water hose 7 is held between the pressure plate 31 and the outer roller surface of the winding roller 21. The water component is located outside the take-up roller 21 and includes a first drainage roller 42 and a second drainage roller 43 parallel to the take-up roller 21. The first drainage roller 42 and the second drainage roller 43 can rotate around their respective central axes by external force, face each other with a gap, and the gap between them serves as a drainage area. The gap is adjustable. The water belt 7 passing through the drainage area is held between the outer roller surfaces of the first drainage roller 42 and the second drainage roller 43. The drainage component as a whole can reciprocate linearly along the entire length of the take-up roller 21 and along the axial direction of the take-up roller 21. The power unit is used to simultaneously drive the rotation of the take-up roller 21 and the reciprocating linear displacement of the drainage component.

[0031] In practice, the corresponding structural configuration of the pumping device for dewatering the foundation pit also includes:

[0032] The two sets of water hoses 7 are provided with flanges at the ends for connecting to the inlet / outlet of the water pump 1, and can be detachably connected to the inlet / outlet of the water pump 1 through the flanges.

[0033] In the winding assembly: the winding roller 21 is mounted on the top of the base plate 61 by the winding frame 22, which is set on the upper end of the base plate 61. The roller body is arranged horizontally, and the roller shaft is supported on the winding frame 22 by bearings.

[0034] In the take-up assembly: the pressure plate assembly includes a pressure plate 31, connecting rods 32, and springs 33. There is a pair of connecting rods 32, which are arranged radially along the length of the take-up roller 21 and spaced apart axially along the take-up roller 21. A pair of matching connecting holes 34 are formed on the take-up roller 21 according to the outer diameter of the pair of connecting rods 32 and their positional distribution. The connecting holes 34 are formed radially inward from the outer roller surface of the take-up roller 21. One end of the pair of connecting rods 32 passes through the pair of connecting holes 34 and is tensioned between them and the hole wall by springs 33. The other end is connected to the pressure plate 31 and supports the pressure plate 31 on the periphery of the outer roller surface of the take-up roller 21. The deformation direction of the springs 33 is set along the length of the connecting rods 32. The pair of springs 33 serve as tensioning elements.

[0035] In the winding assembly: the drainage component includes a drainage frame 41, a first drainage roller 42, a second drainage roller 43, and an adjusting component. The number of roller bodies of the first drainage roller 42 and the second drainage roller 43 is equal and there is at least one of each. They are arranged vertically opposite each other. Each roller body can rotate by the friction between the outer circumference of the roller and the water belt 7. The installation position of the first drainage roller 42 can be adjusted vertically by the adjusting component, while the installation position of the second drainage roller 43 is fixed.

[0036] In the winding assembly: the adjusting components include adjusting screw 44, limiting rods 45, and mounting frame 46. The two ends of the roller shaft of the first drainage roller 42 are rotatably supported on the mounting frame 46 by bearings. The two ends of the roller shaft of the second drainage roller 43 are rotatably supported on the drainage frame 41 by bearings. The mounting frame 46 is hoisted by adjusting screw 44 and a pair of limiting rods 45 symmetrically arranged on both sides of adjusting screw 44. Adjusting screw 44 is threaded into threaded hole 47 reserved on drainage frame 41, passes through threaded hole 47, and its lower end is rotatably connected to mounting frame 46. A pair of limiting rods 45 slide vertically through a pair of limiting holes 48 reserved on drainage frame 41, and their lower ends are fixedly connected to mounting frame 46.

[0037] In the winding assembly: the power unit includes a drive motor 51, a transmission mechanism, and a reciprocating linear displacement mechanism. One end of the winding roller 21 is coaxially connected to the motor shaft of the drive motor 51, and the other end is coaxially connected to the input shaft of the transmission mechanism. The reciprocating linear displacement mechanism includes a reciprocating lead screw 55, a lead screw sleeve 56, a sliding sleeve 57, and a sliding rod 58. The output shaft of the transmission mechanism is coaxially connected to one end of the reciprocating lead screw 55, driving the reciprocating lead screw 55 to rotate synchronously. The lead screw sleeve 56 is threaded onto the reciprocating lead screw 55 and is fixedly connected to the sliding sleeve 57 to support the drainage component. The sliding sleeve 57 is slidably mounted on the sliding rod 58. The sliding rod 58 and the reciprocating lead screw 55 are spaced apart, parallel to the winding roller 21, and arranged along the entire length of the roller. The reciprocating lead screw 55 and the sliding rod 58 are installed between a pair of horizontal plates 59, and the pair of horizontal plates 59 are installed on the winding frame 22.

[0038] The top end of the lead screw sleeve 56 is fixedly connected to the bottom end of the drainage frame 41.

[0039] The transmission mechanism is a chain drive mechanism. The axle of the drive sprocket 52 is coaxially connected to the roller shaft of the take-up roller 21, and the axle of the driven sprocket 53 is coaxially connected to the reciprocating screw 55. The transmission chain 54 is wound between the drive sprocket 52 and the driven sprocket 53.

[0040] The base plate 61 has casters 62 at the four corners of the bottom and a handrail 63 on one side.

[0041] When this device is used for dewatering foundation pits, the operation method is as follows:

[0042] Move the device to the working position, connect the two sets of water hoses 7 to the inlet and outlet of the water pump 1 respectively, and use the water pump 1 to pump water to dewater the foundation pit.

[0043] After the water inside the foundation pit is pumped out, the two sets of hoses 7 are removed from the pump 1 and prepared for winding. Taking one set of hoses 7 as an example:

[0044] First, fix one end of the water hose 7: pull the pressure plate 31 outward in the direction opposite to the take-up roller 21, widen the gap between the pressure plate 31 and the take-up roller 21, pass the water hose 7 through the drainage area of ​​the drainage component, and then let one end of it pass between the pressure plate 31 and the take-up roller 21. After that, release the pressure plate 31, and the pressure plate 31 will clamp the end of the water hose 7 together with the outer roller surface of the take-up roller 21 by the elastic force of the spring 33.

[0045] The second step is to adjust the drainage components: rotate the adjusting screw 44, and under the guidance of the limiting rod 45, move the mounting frame 46 and the first drainage roller 42 up or down together, adjust the distance between the first drainage roller 42 and the second drainage roller 43, so that the water belt 7 passing through the drainage area can be squeezed by the first drainage roller 42 and the second drainage roller 43 while being wound up, and use the squeezing to discharge the residual water in the water belt 7.

[0046] The third step is to start winding: start the drive motor 51, drive the winding roller 21 to rotate and then wind up the water belt 7. During this process, the reciprocating screw 55 is driven to rotate synchronously through the transmission mechanism. Thus, the screw sleeve 56, the sliding sleeve 57 and the drainage components move back and forth linearly along the axial direction of the winding roller 21 within the entire length of the roller under the guidance of the sliding rod 58, so that the water belt 7 can be evenly wound on the winding roller 21.

[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pumping device for dewatering foundation pits, characterized in that: include: The base plate is used to install the water pump and winding assembly; The water pump is used for pumping water; The winding assembly includes a pair, symmetrically arranged on both sides of the water pump, for winding two sets of water hoses that are detachably connected to the water pump inlet and outlet, respectively; each winding assembly includes a winding roller, a pressure member, a drainage member, and a power unit; the winding roller can rotate around the central axis; the pressure member includes a tensioning element and a pressure plate, and a gap is left between the pressure plate and the outer roller surface of the winding roller along the radial direction of the roller body; the pressure plate can clamp or loosen the water hose passing through the gap by the elastic force of the tensioning element, and the clamped water hose is held between the pressure plate and the outer roller surface of the winding roller; The drainage component is located outside the take-up roller and includes a first drainage roller and a second drainage roller parallel to the take-up roller. The first drainage roller and the second drainage roller can rotate around their respective central axes by external force, face each other with a gap, and the gap between them serves as a drainage area. The gap is adjustable. The water tape passing through the drainage area is held between the outer roller surfaces of the first drainage roller and the second drainage roller. The drainage component as a whole can reciprocate linearly along the entire length of the take-up roller and along the axial direction of the take-up roller. The power device is used to simultaneously drive the rotation of the take-up roller and the reciprocating linear displacement of the drainage component.

2. The pumping device for dewatering foundation pits according to claim 1, characterized in that, In the winding assembly: the winding roller is mounted on the top of the base plate by a winding frame, the roller body is arranged horizontally, and the roller shaft is supported on the winding frame by bearings.

3. The pumping device for dewatering foundation pits according to claim 1 or 2, characterized in that, In the winding assembly: the pressure plate assembly includes a pressure plate, connecting rods, and springs. The connecting rods are provided in pairs, arranged radially along the length of the winding roller and spaced apart axially along the winding roller. A pair of matching connecting holes are formed on the winding roller according to the outer diameter and position of the pair of connecting rods. The connecting holes are formed radially inward from the outer roller surface of the winding roller. One end of the pair of connecting rods passes through the pair of connecting holes and is tensioned between them and the hole wall by a spring. The other end is connected to the pressure plate, which supports the pressure plate on the periphery of the outer roller surface of the winding roller. The deformation direction of the spring is set along the length of the connecting rod. The pair of springs serve as the tensioning elements.

4. The pumping device for dewatering foundation pits according to claim 1, characterized in that, In the winding assembly: the drainage component includes a drainage frame, a first drainage roller, a second drainage roller, and an adjusting component. The number of the first drainage roller and the second drainage roller is equal and there is at least one of each. They are arranged vertically opposite each other. Each roller can rotate by the friction between the outer circumference of the roller and the water belt. The installation position of the first drainage roller is adjustable vertically by the adjusting component, while the installation position of the second drainage roller is fixed.

5. The pumping device for dewatering foundation pits according to claim 4, characterized in that, In the winding assembly: the adjusting component includes an adjusting screw, limiting rods, and a mounting frame. The two ends of the first drainage roller shaft are rotatably supported on the mounting frame by bearings. The two ends of the second drainage roller shaft are rotatably supported on the drainage frame by bearings. The mounting frame is hoisted by the adjusting screw and a pair of limiting rods symmetrically arranged on both sides of the adjusting screw. The adjusting screw is threaded into a threaded hole reserved on the drainage frame, passes through the threaded hole, and its lower end is rotatably connected to the mounting frame. The pair of limiting rods slide vertically through a pair of pre-reserved limiting holes on the drainage frame, and their lower ends are fixedly connected to the mounting frame.

6. The pumping device for dewatering foundation pits according to claim 1 or 4, characterized in that, In the winding assembly: the power unit includes a drive motor, a transmission mechanism, and a reciprocating linear displacement mechanism. One end of the winding roller shaft is coaxially connected to the motor shaft of the drive motor, and the other end is coaxially connected to the input shaft of the transmission mechanism. The reciprocating linear displacement mechanism includes a reciprocating lead screw, a lead screw sleeve, a sliding sleeve, and a sliding rod. The output shaft of the transmission mechanism is coaxially connected to one end of the reciprocating lead screw, driving the reciprocating lead screw to rotate synchronously. The lead screw sleeve is threaded onto the reciprocating lead screw, fixedly connected to the sliding sleeve, and fixedly supports the drainage component. The sliding sleeve is slidably sleeved on the sliding rod. The sliding rod and the reciprocating lead screw are spaced apart, parallel to the winding roller, and arranged along the entire length of the roller.

7. The pumping device for dewatering foundation pits according to claim 6, characterized in that: The top end of the lead screw sleeve is fixedly connected to the bottom end of the drainage frame.

8. The pumping device for dewatering foundation pits according to claim 6, characterized in that: The transmission mechanism is a chain drive mechanism. The axle of the driving sprocket is coaxially connected to the axle of the take-up roller, and the axle of the driven sprocket is coaxially connected to the reciprocating lead screw. The transmission chain is wound between the driving sprocket and the driven sprocket.

9. The pumping device for dewatering foundation pits according to claim 1, characterized in that: The base has casters at the four corners and a handrail on one side.

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