Dewatering well casing with filtering function

Abstract

The utility model provides a dewatering well casing with a filtering function, which relates to the technical field of dewatering well casings and comprises a non-fine concrete pipe, a filtering component and a plugging component. According to the dewatering well pipe with the filtering function, a non-fine concrete pipe is put into an formed well hole, a plugging plate fixedly provided with a long rod extends into the non-fine concrete pipe, a limiting block on the plugging plate is controlled to be aligned with a groove opening of a vertical groove through the long rod, the plugging plate is moved downwards to enable the limiting block to slide into the bottom of the vertical groove, and then the vertical groove is formed; the blocking plate is rotated to enable the limiting block to enter the bottom of the transverse groove, movement of the limiting block in the vertical direction is limited through the transverse groove, the blocking plate is fixed in the inner ring, the inner connecting cylinder is sealed, blocking of the non-fine concrete pipe is achieved, the blocking plate is controlled to rotate through the long rod, the limiting block slides out of the transverse groove to the bottom of the vertical groove, and then the blocking plate is pulled upwards. And the limiting blocks slide out of the vertical grooves, so that the blocking plate is taken out, the effect of removing blocking of the non-fine concrete pipe is achieved, and operation is easy and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of precipitation well pipe, especially to a precipitation well pipe with filtering function. BACKGROUND

[0002] The precipitation well pipe is a kind of pipe for groundwater precipitation, groundwater level control or foundation drainage, and is widely used in the fields of building engineering, mining, tunnel construction and the like.The main function is to reduce groundwater level by well pipe pumping or drainage, so as to facilitate engineering construction and construction, and avoid the influence of high water level on underground operation.

[0003] After the precipitation well pipe is placed in stratum, the bottom of the precipitation well pipe usually needs to be plugged, after the bottom is plugged, groundwater can penetrate into the well through the well wall, the well wall is usually provided with porous structure or filtering material, so that water can penetrate smoothly, and a large amount of impurities such as silt cannot be brought in, which can effectively play a filtering role.

[0004] When the groundwater level has been stabilized or no longer needs to be lowered, the plugging measure should be removed, at this time, the removal of plugging can restore the natural flow of groundwater, and water flow can freely enter the well, so that the water level in the well can accurately reflect the change of surrounding groundwater level, and such well body can be used as a water level monitoring well to monitor the groundwater level, the existing precipitation well pipe usually adopts concrete to plug the bottom of the precipitation well pipe, and it is difficult to remove the plugging. UTILITY MODEL CONTENTS

[0005] The utility model provides a precipitation well pipe with filtering function, solves the problem that the existing precipitation well pipe usually adopts concrete to plug the bottom of the precipitation well pipe and it is difficult to remove the plugging in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a precipitation well pipe with filtering function, comprising sand-free concrete pipe, filtering assembly and plugging assembly, the outer peripheral side of the sand-free concrete pipe is provided with filtering assembly, the plugging assembly is arranged at the inner bottom end of the sand-free concrete pipe, the plugging assembly comprises fixed seat, inner sleeve and plugging plate, the fixed seat is fixed on the inner wall of the sand-free concrete pipe, the inner sleeve is arranged in the inside of the fixed seat, the inside of the inner sleeve is fixedly connected with inner ring, a plurality of vertical grooves are formed in the upper surface of the inner ring, the lower end of the vertical groove is provided with horizontal groove, the horizontal groove is formed on the inner side surface of the inner ring, the vertical groove and the horizontal groove are connected, the plugging plate is arranged in the inside of the inner ring, a plurality of limiting blocks are fixedly connected on the peripheral surface of the plugging plate, and the limiting blocks are located in the horizontal groove.

[0007] Preferably, an upper surface of the fixing base is provided with a ring groove, an upper end of the inner sleeve is fixedly connected with an outer ring, the outer ring is inserted into the ring groove, and the inner sleeve is fixedly connected between the outer ring and the fixing base.

[0008] Preferably, a sealing ring is arranged between the outer ring and the ring groove.

[0009] Preferably, a plurality of vertical grooves are arranged at equal intervals around a central axis of the inner ring, and the limiting blocks are equal in number to the vertical grooves and correspond in position.

[0010] Preferably, an upper surface of the plugging plate is provided with a mounting hole, and a long rod is fixedly connected inside the mounting hole.

[0011] Preferably, a lower end of the inner sleeve is fixedly connected with a plurality of foot bases, and the foot bases protrude out of a bottom of the sand-free concrete pipe.

[0012] Preferably, a plurality of protrusions are arranged on an outer circumferential side of the sand-free concrete pipe, and the protrusions are conical.

[0013] Preferably, the filter assembly comprises a filter cotton layer and a coarse filter layer, the filter cotton layer is sleeved on the sand-free concrete pipe, and the coarse filter layer is arranged on an outer circumferential side of the filter cotton layer.

[0014] Preferably, an outer circumferential side of the coarse filter layer is provided with a cable tie.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The filter cotton layer is sleeved on the outer circumferential side of the sand-free concrete pipe, the coarse filter layer is sleeved on the outer circumferential side of the filter cotton layer, the filter cotton layer and the coarse filter layer are bound on the sand-free concrete pipe by the cable tie, the coarse filter layer coarsely filters underground water, and then the filter cotton layer finely filters, filtered water penetrates into the sand-free concrete pipe through the pipe wall, and the filtering effect can be improved.

[0017] The fixed seat is fixed on the inner wall of the no-fines concrete pipe, the outer ring on the inner sleeve is inserted into the ring groove on the fixed seat, the outer ring and the fixed seat are fixed by penetrating and inserting the fixing bolt into the bolt holes formed on the outer ring and the fixed seat, the no-fines concrete pipe is lowered into the formed well hole, the plugging plate with the long rod is inserted into the no-fines concrete pipe, the limiting block on the plugging plate is aligned with the slot of the vertical groove by controlling the long rod, the plugging plate is lowered so that the limiting block slides into the bottom of the vertical groove, the limiting block is limited in the vertical direction by the horizontal groove, the plugging plate is fixed in the inner ring, the inner sleeve is sealed, the no-fines concrete pipe is plugged, when the plugging plate needs to be taken out, the plugging plate is rotated by controlling the long rod, the limiting block slides out of the horizontal groove to the bottom of the vertical groove, and then the plugging plate is pulled upwards, so that the limiting block slides out of the vertical groove, thereby the plugging plate is taken out, the no-fines concrete pipe is unplugged, and the operation is simple and fast. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A schematic view of the precipitation well pipe structure with the filtering function of the utility model;

[0019] Figure 2 A top view of the precipitation well pipe of the utility model;

[0020] Figure 3 An internal sectional view of the precipitation well pipe of the utility model;

[0021] Figure 4 A schematic view of the structure of the plugging assembly cooperating with the long rod of the utility model;

[0022] Figure 5 A schematic view of the cooperation of the components of the plugging assembly of the utility model;

[0023] Figure 6 An internal sectional view of the plugging assembly of the utility model.

[0024] Reference signs in the drawing: 1, no-fines concrete pipe; 11, protrusion; 2, filter cotton layer; 3, coarse filter layer; 4, cable tie; 5, plugging assembly; 51, fixed seat; 511, ring groove; 52, inner sleeve; 521, outer ring; 5211, sealing ring; 522, inner ring; 523, vertical groove; 524, horizontal groove; 525, foot stand; 53, plugging plate; 531, limiting block; 532, mounting hole; 6, long rod. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] This utility model provides a rainwater well pipe with a filtration function, such as Figure 1 and Figure 2 As shown, the assembly includes a sand-free concrete pipe 1, a filter assembly, and a sealing assembly 5. Multiple conical protrusions 11 are arranged on the outer periphery of the sand-free concrete pipe 1. The filter assembly, comprising a filter cotton layer 2 and a coarse filter layer 3, is located on the outer periphery of the sand-free concrete pipe 1. The filter cotton layer 2 is fitted onto the sand-free concrete pipe 1, and the coarse filter layer 3 is positioned on the outer periphery of the filter cotton layer 2. Cable ties 4 are attached to the outer periphery of the coarse filter layer 3. The filter cotton layer 2 covers the protrusions 11 and fits tightly against the sand-free concrete pipe 1. The conical protrusions 11 increase the friction between the filter cotton layer 2 and the sand-free concrete pipe 1, preventing the filter cotton layer 2 from easily slipping off. The cable ties 4 securely fasten the filter cotton layer 2 and the coarse filter layer 3 to the sand-free concrete pipe 1.

[0027] The filter layer 2 can be made of polyurethane dustproof filter cotton, and the coarse filter layer 3 can be made of woven bags. The woven bags perform coarse filtration of groundwater, and then the polyurethane dustproof filter cotton performs fine filtration. The filtered water permeates into the pipe through the wall of the sand-free concrete pipe 1. Both are very common in the construction environment and can save costs while improving the filtration effect.

[0028] like Figure 3 As shown, the sealing component 5 is installed at the bottom of the interior of the sand-free concrete pipe 1, as... Figure 4As shown, the plugging assembly 5 comprises a fixed seat 51, an inner sleeve 52 and a plugging plate 53, the fixed seat 51 is fixed on the inner wall of the sand-free concrete pipe 1, the inner sleeve 52 is arranged inside the fixed seat 51, the upper surface of the fixed seat 51 is provided with a ring groove 511, the upper end of the inner sleeve 52 is fixedly connected with an outer ring 521, the outer ring 521 is inserted into the ring groove 511, the inner sleeve 52 is fixedly connected between the outer ring 521 and the fixed seat 51, and a sealing ring 5211 is arranged between the outer ring 521 and the ring groove 511, which can enhance the sealing effect and prevent underground water from seeping into the pipe through the gap between the fixed seat 51 and the inner sleeve 52. The fixed seat 51 is fixed on the inner wall of the sand-free concrete pipe 1, the outer ring 521 on the inner sleeve 52 is inserted into the ring groove 511 on the fixed seat 51, and the outer ring 521 and the fixed seat 51 are fixed by inserting the fixing bolt into the bolt hole.

[0029] As shown in Figure 5 , the inner sleeve 52 is fixedly connected with an inner ring 522, the upper surface of the inner ring 522 is provided with a plurality of vertical grooves 523, the plurality of vertical grooves 523 are arranged at equal intervals around the central axis of the inner ring 522, the lower end of the vertical groove 523 is provided with a horizontal groove 524, the horizontal groove 524 is arranged on the inner side surface of the inner ring 522, and the vertical groove 523 and the horizontal groove 524 are communicated, as shown in Figure 6 , the plugging plate 53 is arranged inside the inner ring 522, the peripheral surface of the plugging plate 53 is fixedly connected with a plurality of limiting blocks 531, the number of the limiting blocks 531 is equal to that of the vertical grooves 523 and corresponds to the positions of the vertical grooves 523, and the limiting blocks 531 are located in the horizontal grooves 524. Align the limiting blocks 531 on the plugging plate 53 with the notches of the vertical grooves 523, move the plugging plate 53 downward so that the limiting blocks 531 slide into the bottom of the vertical grooves 523, rotate the plugging plate 53 so that the limiting blocks 531 enter the bottom of the horizontal grooves 524, limit the vertical movement of the limiting blocks 531 through the horizontal grooves 524, fix the plugging plate 53 in the inner ring 522, seal the inner sleeve 52, and achieve the plugging of the sand-free concrete pipe 1.

[0030] As shown in Figure 4 and Figure 5 , the upper surface of the plugging plate 53 is provided with a mounting hole 532, the inner part of the mounting hole 532 is fixedly connected with a long rod 6, the lower end of the inner sleeve 52 is fixedly connected with a plurality of foot supports 525, the foot supports 525 protrude from the bottom of the sand-free concrete pipe 1, and the foot supports 525 can be inserted into the soil layer at the bottom of the sand-free concrete pipe 1 to enhance the stability of the sand-free concrete pipe 1. The long rod 6 is fixed on the plugging plate 53 through the mounting hole 532.

[0031] When the blocking plate 53 needs to be taken out, the blocking plate 53 is controlled to rotate through the long rod 6, the limiting block 531 is slid out from the horizontal groove 524 to the bottom of the vertical groove 523, and then the blocking plate 53 is pulled upwards, so that the limiting block 531 is slid out from the vertical groove 523, thereby taking out the blocking plate 53, achieving the effect of removing the blocking of the no-fines concrete pipe 1, and the operation is simple and fast.

[0032] As shown in the drawings, Figure 1 and Figure 2 the filter cotton layer 2 is sleeved on the outer circumferential side of the no-fines concrete pipe 1, the coarse filter layer 3 is sleeved on the outer circumferential side of the filter cotton layer 2, the filter cotton layer 2 and the coarse filter layer 3 are bound on the no-fines concrete pipe 1 by using the cable tie 4, the fixed seat 51 is fixed on the inner wall of the no-fines concrete pipe 1, the outer ring 521 on the inner sleeve 52 is inserted into the ring groove 511 on the fixed seat 51, the outer ring 521 and the fixed seat 51 are fixed by using the fixing bolt which is inserted into the bolt holes formed on the outer ring 521 and the fixed seat 51, the no-fines concrete pipe 1 is lowered into the well hole, the blocking plate 53 with the long rod 6 fixed thereon is inserted into the no-fines concrete pipe 1, the limiting block 531 on the blocking plate 53 is aligned with the slot of the vertical groove 523 by controlling the blocking plate 53 through the long rod 6, the blocking plate 53 is lowered so that the limiting block 531 is slid into the bottom of the vertical groove 523, the blocking plate 53 is rotated so that the limiting block 531 is entered into the bottom of the horizontal groove 524, the movement of the limiting block 531 in the vertical direction is limited through the horizontal groove 524, the blocking plate 53 is fixed in the inner ring 522, the inner sleeve 52 is sealed, the no-fines concrete pipe 1 is blocked, when the blocking plate 53 needs to be taken out, the blocking plate 53 is controlled to rotate through the long rod 6, the limiting block 531 is slid out from the horizontal groove 524 to the bottom of the vertical groove 523, and then the blocking plate 53 is pulled upwards, so that the limiting block 531 is slid out from the vertical groove 523, thereby taking out the blocking plate 53, achieving the effect of removing the blocking of the no-fines concrete pipe 1, and the operation is simple and fast.

[0033] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be fully applied to various fields suitable for the present application, and other modifications can be easily realized by those skilled in the art, therefore, the present application is not limited to specific details and the drawings shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A precipitation well pipe having a filtering function, characterized by, The application relates to a sand-free concrete pipe (1), a filter assembly and a plugging assembly (5), wherein the filter assembly is arranged on the outer periphery of the sand-free concrete pipe (1), and the plugging assembly (5) is arranged at the inner bottom end of the sand-free concrete pipe (1), and the plugging assembly (5) comprises a fixing seat (51), an inner sleeve (52) and a plugging plate (53), the fixing seat (51) is fixed on the inner wall of the sand-free concrete pipe (1), the inner sleeve (52) is arranged inside the fixing seat (51), an inner ring (522) is fixedly connected to the inner sleeve (52), a plurality of vertical grooves (523) are formed in the upper surface of the inner ring (522), a horizontal groove (524) is arranged at the lower end of each vertical groove (523), the horizontal groove (524) is formed in the inner side surface of the inner ring (522), the vertical grooves (523) and the horizontal grooves (524) are communicated with each other, and the plugging plate (53) is arranged inside the inner ring (522) and is fixedly connected with a plurality of limiting blocks (531) on the peripheral surface.

2. The precipitation well pipe with a filtering function according to claim 1, characterized by, An annular groove (511) is formed in the upper surface of the fixing seat (51), an outer ring (521) is fixedly connected to the upper end of the inner sleeve (52), the outer ring (521) is inserted into the annular groove (511), and the inner sleeve (52) is fixedly connected with the fixing seat (51) through the outer ring (521).

3. The precipitation well pipe with a filtering function according to claim 2, characterized by, A sealing ring (5211) is arranged between the outer ring (521) and the annular groove (511).

4. The precipitation well pipe with a filtering function according to claim 1, wherein The plurality of vertical grooves (523) are equidistantly arranged around the central axis of the inner ring (522), and the limiting blocks (531) are equal in number to the vertical grooves (523) and correspond to the vertical grooves (523) in position.

5. The precipitation well pipe with a filtering function according to claim 1, wherein An installation hole (532) is formed in the upper surface of the plugging plate (53), and a long rod (6) is fixedly connected in the installation hole (532).

6. The precipitation well pipe with a filtering function according to claim 1, wherein A plurality of foot bases (525) are fixedly connected to the lower end of the inner sleeve (52), and the foot bases (525) protrude from the bottom of the sand-free concrete pipe (1).

7. The precipitation well pipe with a filtering function according to claim 1, wherein A plurality of protrusions (11) are arranged on the outer peripheral surface of the sand-free concrete pipe (1), and the protrusions (11) are conical.

8. The precipitation well pipe with a filtering function according to claim 1, wherein The filter assembly comprises a filter cotton layer (2) and a coarse filter layer (3), the filter cotton layer (2) is sleeved on the sand-free concrete pipe (1), and the coarse filter layer (3) is arranged on the outer periphery of the filter cotton layer (2).

9. The precipitation well pipe with a filtering function according to claim 8, characterized by, A cable tie (4) is arranged on the outer periphery of the coarse filter layer (3).

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