CN220013739U

CN220013739U - Anti-blocking device for dewatering well

Info

Publication number: CN220013739U
Application number: CN202320978209.XU
Authority: CN
Inventors: 罗上钦; 鲁兆昕
Original assignee: China Railway First Engineering Group Co Ltd; Fifth Engineering Co Ltd of China Railway First Engineering Group Co Ltd
Current assignee: China Railway First Engineering Group Co Ltd; Fifth Engineering Co Ltd of China Railway First Engineering Group Co Ltd
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-11-14
Anticipated expiration: 2033-04-26

Abstract

The utility model discloses an anti-blocking device for a dewatering well, which comprises a supporting rod and an anti-blocking base, wherein the upper end of the supporting rod is bent downwards to form a hanging rod which is obliquely arranged; the lower end of the supporting rod is fixed in the center of the upper round anti-blocking plate, and the upper end of the supporting rod is close to the side wall of the wellhead of the dewatering well. After the upper portion of the dewatering well is damaged (generally in the length range of the supporting rod), the anti-blocking device is pulled out during the later-stage earthwork excavation, sundries falling into the well can be removed, and meanwhile, along with the deepening of the earthwork excavation, the anti-blocking device can be recycled downwards according to the gradual dismantling of the well wall of the dewatering well, so that the protection effect of the dewatering well on the pile foundation construction, earthwork excavation and other stages is ensured, the practicability of the device is improved, and the problems in the prior art are solved.

Description

Anti-blocking device for dewatering well

Technical Field

The utility model belongs to the technical field of anti-blocking of dewatering wells, and particularly relates to an anti-blocking device of a dewatering well.

Background

When the engineering project with higher groundwater level and deeper foundation is constructed, precipitation is needed first, and precipitation wells are generally adopted for precipitation of ground strata such as silt, sandy soil, gravelly soil and the like. Precipitation of precipitation wells plays a great role in earthwork stage and foundation construction stage, but in the construction process, the precipitation wells are easily damaged, so that the construction progress is affected, and a common wellhead protection method is to cover the wellhead of the precipitation wells with a plank and press the wellhead with stones. The protection mode often causes a large amount of soil blocks, stones and the like to fall into the dewatering well in the engineering pile construction and the earthwork excavation construction process, so that the dewatering well is buried and blocked, and the dewatering effect is lost.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides an anti-blocking device for a dewatering well. The technical problems to be solved by the utility model are realized by the following technical scheme:

the anti-blocking device for the dewatering well comprises a supporting rod and an anti-blocking base, wherein the upper end of the supporting rod is bent downwards to form a hanging rod which is obliquely arranged, the anti-blocking base comprises an upper layer of round anti-blocking plate, a lower layer of round anti-blocking plate and a connecting rod which is vertically connected between the round anti-blocking plates, through holes which correspond to each other up and down are respectively arranged on the round anti-blocking plates, and filtering materials are clamped between the round anti-blocking plates; the lower end of the supporting rod is fixed in the center of the upper round anti-blocking plate, and the upper end of the supporting rod is close to the side wall of the wellhead of the dewatering well.

Further, the diameter of the circular anti-blocking plate is smaller than that of the inner wall of the dewatering well, the filtering material is a cylindrical sponge block, the diameter of the cylindrical sponge block is larger than that of the inner wall of the dewatering well, the cylindrical sponge block is fixed on the connecting rod, and the upper end and the lower end of the cylindrical sponge block extend outwards to the periphery of the circular anti-blocking plate in the radial direction.

Further, the upper portion of the support bar is inclined outwardly.

Further, the through hole is close to the outer edge of the round anti-blocking plate, and the through hole is communicated with the outer edge of the round anti-blocking plate.

The utility model has the beneficial effects that:

1. the anti-blocking device is characterized in that the anti-blocking base is provided with the sponge, water and sludge can be effectively separated due to the loose and porous structural characteristics of the sponge, when sewage with sludge and fine sand flows into the dewatering well, the water, the sludge and the fine sand can be effectively separated, and the submersible pump is prevented from being blocked, so that the service cycle of the dewatering well is prolonged, the anti-blocking base can seal the opening of the dewatering well during the earthwork excavation and pile foundation construction stage, the water pollution in the dewatering well and the bottom landfill condition are reduced, and the anti-blocking device has strong practicability;

2. after the upper part of the dewatering well is damaged (generally within the length range of the supporting rod), the anti-blocking device is pulled out during the later earth excavation, sundries falling into the well can be removed, and meanwhile, as the earth excavation deepens, the anti-blocking device can be recycled downwards according to the gradual dismantling of the well wall of the dewatering well, so that the protection effect of the dewatering well on pile foundation construction, earth excavation and other stages is ensured, the practicability of the device is improved, and the problems in the prior art are solved;

3. the anti-blocking device is convenient to install and dismantle, stable and reliable in structure, high in use efficiency, capable of being repeatedly used in a turnover mode, capable of saving resources, low in engineering cost and high in working efficiency.

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of an anti-blocking base;

FIG. 3 is a schematic structural view of a circular anti-blocking plate;

fig. 4 is a schematic view of the usage state of the present utility model.

Reference numerals illustrate:

1-supporting rods; 2-an anti-blocking base; 3-hanging rods; 4-water pipes; 2-1-a round anti-blocking plate; 2-2-connecting rods; 2-3-through holes; 2-4-filter material.

Detailed Description

The present utility model will be described in further detail with reference to specific examples, but embodiments of the present utility model are not limited thereto.

Referring to fig. 1 to 4, the embodiment of the utility model provides an anti-blocking device for a precipitation well, which specifically comprises a supporting rod 1 and an anti-blocking base 2, wherein the upper end of the supporting rod 1 is bent downwards to form a hanging rod 3 which is obliquely arranged, the angle between the supporting rod 1 and the hanging rod 3 is 45 degrees, the hanging rod 3 is used for hanging the whole anti-blocking device at the wellhead of the precipitation well to prevent the whole anti-blocking device from falling off, and the length of the supporting rod 1 is greater than the damage depth of the precipitation well after one operation.

The lower end of the supporting rod 1 is fixedly provided with an anti-blocking base 2, the lower end of the supporting rod is positioned in the middle of the anti-blocking base 2, the upper end of the supporting rod is close to the side wall of a wellhead of a dewatering well, namely the upper part of the supporting rod 1 is inclined outwards, and the inclined state enables the hanging rod 3 to be hung on the wellhead of the dewatering well more firmly; the anti-blocking base 2 comprises an upper layer of round anti-blocking plate 2-1, a lower layer of round anti-blocking plate 2-1 and a connecting rod 2-2 vertically connected between the round anti-blocking plates 2-1, wherein the lower end of the supporting rod 1 is fixed in the center of the upper layer of round anti-blocking plate 2-1; the round anti-blocking plates 2-1 are respectively provided with through holes 2-3 which are vertically corresponding, filtering materials 2-4 are clamped between the round anti-blocking plates 2-1, and the round anti-blocking plates 2-1 are used for blocking broken stones falling above the round anti-blocking plates, so that broken stones are prevented from falling into a well directly, and a precipitation well is buried or blocked, so that the precipitation well is lost.

The diameter of the circular anti-blocking plate 2-1 is smaller than that of the inner wall of the precipitation well so that the anti-blocking base 2 can smoothly enter the precipitation well, the filtering material is a cylindrical sponge block, the diameter of the cylindrical sponge block is larger than that of the inner wall of the precipitation well, the cylindrical sponge block is fixed on the connecting rod 2-2, the upper end and the lower end of the cylindrical sponge block radially outwards extend to the periphery of the circular anti-blocking plate 2-1, the diameter of the upper end and the lower end of the cylindrical sponge block is +50mm of the inner wall of the precipitation well, and accordingly when the anti-blocking device is in a use state, the cylindrical sponge block is filled in a gap between the circular anti-blocking plate 2-1 and the inner wall of the precipitation well, when sewage with sludge and fine sand flows into the precipitation well, the water and the sludge and the fine sand can be effectively separated, or when the water well on the upper portion of the circular anti-blocking plate 2-1 is damaged during transferring a pile foundation, the broken water well is caused to fall into a gap between the circular anti-blocking plate 2-1 and the inner wall of the wellhead, blocking can be blocked, and thus the use period of the submersible pump is avoided.

Further, for convenient operation, the through hole 2-3 is close to the outer edge of the circular anti-blocking plate 2-1 with a loose cylindrical sponge block position, the through hole 2-3 is communicated with the outer edge of the circular anti-blocking plate 2-1, the diameter of the through hole 2-3 is larger than that of a water pipe 4 of a dewatering well, the water pipe 4 penetrates out of the through hole 2-3 and is wrapped in the cylindrical sponge block, damage caused by long-term abrasion of the cylindrical anti-blocking plate 2-1 is avoided, accordingly the service life is prolonged, and the requirement of timely discharging accumulated water in the dewatering well is met by the arrangement of the through hole 2-3.

The use process of the anti-blocking device is as follows:

after the submersible pump is installed in place, the anti-blocking device is placed in the dewatering well, and is hung at the wellhead of the dewatering well through the hanging rod 3 at the upper end, so that the anti-blocking device is prevented from falling off, when the dewatering well at the upper end of the anti-blocking base 2 of the dewatering well is damaged, the anti-blocking device is pulled out during the later earth excavation, sundries falling into the well can be removed, then the anti-blocking device is placed in the dewatering well for next protection, water is pumped through the water pipe 4 extending out of the anti-blocking base 2, the anti-blocking device can be recycled downwards according to the gradual dismantling of the well wall of the dewatering well, and the protection effect of the dewatering well in the stages of pile foundation construction, earth excavation and the like is ensured.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims

1. The anti-blocking device for the dewatering well is characterized by comprising a supporting rod and an anti-blocking base, wherein the upper end of the supporting rod is bent downwards to form a hanging rod which is obliquely arranged, the anti-blocking base comprises an upper layer of round anti-blocking plate, a lower layer of round anti-blocking plate and a connecting rod which is vertically connected between the round anti-blocking plates, through holes which correspond to each other up and down are respectively arranged on the round anti-blocking plates, and filtering materials are clamped between the round anti-blocking plates; the lower end of the supporting rod is fixed in the center of the upper round anti-blocking plate, and the upper end of the supporting rod is close to the side wall of the wellhead of the dewatering well.

2. The dewatering well anti-blocking device according to claim 1, wherein the diameter of the circular anti-blocking plate is smaller than the diameter of the inner wall of the dewatering well, the filtering material is a cylindrical sponge block, the diameter of the cylindrical sponge block is larger than the diameter of the inner wall of the dewatering well, the cylindrical sponge block is fixed on the connecting rod, and the upper end and the lower end of the cylindrical sponge block extend outwards to the periphery of the circular anti-blocking plate in a radial direction.

3. The dewatering well plugging prevention device of claim 2, wherein an upper portion of the support rod is inclined outwardly.

4. The dewatering well plugging prevention device of claim 1, wherein the through hole is proximate to and through with an outer edge of the circular plugging prevention plate.