CN212294712U

CN212294712U - Can dismantle closed well lid that falls

Info

Publication number: CN212294712U
Application number: CN201922309520.1U
Authority: CN
Inventors: 宋翔东; 章珠珊; 杨晓楠; 朱悦铭; 杨砚宗
Original assignee: Shanghai Changkai Geotechnical Engineering Co Ltd
Current assignee: Shanghai Changkai Geotechnical Engineering Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2021-01-05
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a detachable closed type dewatering well cover, which is provided with a circular upper well cover and an annular lower well cover, wherein the lower well cover is fixed under the upper well cover through a connecting mechanism and has the same outer diameter; the upper well cover is composed of two semicircular upper semicircular covers, the centers of the two upper semicircular covers are both provided with concave semicircular grooves, the two upper semicircular covers are connected together through a shoe-shaped nut and a bolt, a circular hole is formed in the middle of the two upper semicircular covers, the circular hole is provided with a rubber sealing plug, and the rubber sealing plug is provided with a water outlet/exhaust hole; the lower well cover consists of lower semicircular ring covers of the two semicircular rings, and the two lower semicircular ring covers are connected together through a limiting screw hole; the inner walls of the lower surfaces of the upper well cover and the lower well cover are provided with rubber water stop rings; a water outlet/exhaust pipe is vertically inserted into the circular through hole in the center of the upper well cover. The utility model has the advantages of equipment is simple, easy operation practices thrift the manpower, and is sealed effectual moreover, and bearing pressure is big, can effective reuse.

Description

Can dismantle closed well lid that falls

Technical Field

The utility model belongs to the technical field of foundation ditch engineering groundwater control precipitation, concretely relates to can dismantle closed well lid that falls water.

Background

In the construction of a pressure reducing well, in the links of moving water and filling gravel, pumping water in the operation process of a drainage well and pressurizing in the recharging operation process of a recharging well, the well mouth needs to be sealed, so that the airtightness in the well is ensured, and the expected effect is achieved.

The traditional technology is that a welding method is adopted to connect the well cover and the well pipe, which not only consumes time and labor, but also has high requirements on welding technology of operators. Once the welding is poor, the sealing effect of the well cover is poor, when the water is moved to fill gravel, the water in the well is sprayed outwards under the pressure of the pressure pump and cannot enter an annular gap between the well pipe and the well wall through the water filter pipe to return out of the well mouth; when the pressure is used for recharging, the recharging pressure cannot be increased due to poor sealing of the well cover, and the requirement of the pressure recharging cannot be met; when adopting super pressure to inhale the technique of jointly drawing water and dredging, the sealed effect of well lid is poor also can lead to the vacuum when drawing water in the vacuum not enough, draws water inefficiency, and it is poor to dredge the effect.

If the well pipe and well lid is connected by adopting a welding method, the disassembly is complex, a cutting machine is often needed for cutting, the disassembly efficiency is low, and the well lid is easy to damage in the disassembly process and difficult to effectively reuse.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel can dismantle closed precipitation well lid according to the weak point of above-mentioned prior art, guarantee the sealed effect of well lid, effective reuse practices thrift installation time, reduces human cost and technical ability requirement.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

a detachable closed type dewatering well lid is provided with a circular upper well lid and an annular lower well lid, wherein the lower well lid is fixed under the upper well lid through a connecting mechanism, and the outer diameters of the upper well lid and the lower well lid are equal;

the upper well cover is composed of two semicircular upper semicircular covers, the centers of the two upper semicircular covers are both provided with concave semicircular grooves, the two upper semicircular covers are connected together through a shoe-shaped nut and a bolt, a circular hole is formed in the middle of the two upper semicircular covers, the circular hole is provided with a rubber sealing plug, and the rubber sealing plug is provided with a water outlet/exhaust hole;

the lower well cover consists of lower semicircular ring covers of the two semicircular rings, and the two lower semicircular ring covers are connected together through a limiting screw hole;

the lower surface of the upper well cover 1 and the inner diameter of the lower well cover are both provided with rubber water stop rings;

a water outlet/exhaust pipe is vertically inserted into the circular through hole in the center of the upper well cover, the upper end of the water outlet/exhaust pipe protrudes out of the upper well cover, an air release joint is arranged at the protruding part of the upper end, and at least one sealing gasket is arranged between the outer wall of the water outlet/exhaust pipe and the water outlet/exhaust hole.

Furthermore, the water outlet/air exhaust hole and the sealing gasket are in interference fit.

Furthermore, at least two fixing lug seats which are overlapped in the height direction are arranged on the outer edge side walls of the upper semicircular cover and the lower semicircular cover, limiting screw holes are formed in the fixing lug seats, and screws penetrate through the limiting screw holes of the upper semicircular cover and the lower semicircular cover so as to fix the lower well cover under the upper well cover.

Furthermore, a positioner used for positioning the lower well cover is welded on the outer edge of the lower surface of the upper semicircular cover.

Furthermore, a rubber gasket is arranged at the outer diameter of the rubber sealing plug and the inner diameter of the semicircular groove.

Further, the rubber sealing plug is provided with a metal pull ring.

Furthermore, the upper surface of the rubber sealing plug is provided with a pull ring groove.

The utility model discloses for traditional welding well lid method, it is simple to have equipment, easy operation, practices thrift advantages such as manpower, and is sealed effectual moreover, and bearing pressure is big, can effective reuse.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1a is a side view of the upper well cover from a front perspective;

FIG. 1b is a side view of the upper well cover from a rear perspective;

FIG. 1c is a top view of two semicircular upper domes;

FIG. 2a is a side view of the lower well cover from a front perspective;

FIG. 2b is a side view of the lower well head at a rear perspective;

FIG. 2c is a top view of two lower semi-annular ring covers;

FIG. 3a is a top view of the rubber sealing plug at the center hole of the upper well cover;

FIG. 3b is a side cross-sectional view of the rubber sealing plug at the center hole of the upper well cover;

FIG. 4 is a side view of the water/air outlet pipe;

FIG. 5a is a schematic view of the upper wellhead installed within the wellbore;

FIG. 5b is a schematic view of the installation of the lower wellhead within the wellbore.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.

The utility model provides a can dismantle closed dewatering well lid, can dismantle closed dewatering well lid is equipped with well lid 2 under circular upper cover 1 and the annular, and well lid 2 passes through coupling mechanism to be fixed under upper cover 1 down, and their external diameter is equivalent. The upper well cover 1 is composed of two semicircular upper semicircular covers, the centers of the two upper semicircular covers are provided with concave semicircular grooves 1-5, the two upper semicircular covers are connected together through a shoe-shaped nut 8 and a bolt 6, a circular hole is formed in the middle of the two upper semicircular covers, the circular hole is provided with a rubber sealing plug 3, and the rubber sealing plug 3 is provided with a water outlet/exhaust hole; the lower well cover 2 is composed of lower semicircular ring covers of two semicircular rings, and the two lower semicircular ring covers are connected together through a limiting screw hole 2-1 by a screw; the lower surface of the upper well cover 1 is provided with a rubber water stop ring 1-2, and the inner diameter of the lower well cover 2 is provided with a rubber water stop ring 2-2; a water outlet/exhaust pipe 4-1 is vertically inserted into a circular through hole in the center of an upper well cover 1, the upper end of the water outlet/exhaust pipe 4-1 protrudes out of the upper well cover 1, an air release joint 4-3 is arranged at the protruding part of the upper end, and at least one sealing gasket 4-2 is arranged between the outer wall of the water outlet/exhaust pipe 4-1 and the water outlet/exhaust hole 3-3.

In an alternative embodiment, the water outlet/vent hole 3-3 and the sealing gasket 4-2 are in interference fit, namely the outer diameter of the sealing gasket 4-2 is slightly larger than that of the water outlet/vent hole 3-3, so that the sealing performance is ensured.

In an optional embodiment, at least two fixing lug seats which are overlapped in the height direction are arranged on the outer edge side wall of the upper semi-circular cover and the lower semi-circular cover, limiting screw holes 1-3 and 2-3 are arranged on the fixing lug seats, and the lower well cover 2 is fixed under the upper well cover 1 through screws penetrating through the limiting screw holes of the upper semi-circular cover and the lower semi-circular cover.

In an optional embodiment, the outer edge of the lower surface of the upper semicircular cover is welded with a positioner 7 for positioning the lower well cover 2, and the positioner 7 is, for example, a fixture block arranged on the lower surface of the upper semicircular cover, so that the lower well cover can be positioned conveniently.

In an alternative embodiment, rubber gaskets 1-4 are arranged at the outer diameter of the rubber sealing plug 3 and the inner diameter of the semicircular groove, so that the sealing performance of the rubber sealing plug 3 can be improved.

In an alternative embodiment, as shown in fig. 3a-3b, the rubber sealing plug 3 is provided with a metal pull ring 3-1 to facilitate pulling out the rubber sealing plug 3, and the upper surface of the rubber sealing plug 3 is further provided with a pull ring groove 3-2 for accommodating the pull ring when the well lid is closed.

This novel installation of detachable closed precipitation well lid contains the following steps:

1) the outlet/exhaust pipe 4-1 is inserted into the well at a suitable position, and the three-piece gasket 4-2 is inserted from the upper end of the outlet/exhaust pipe 4-1 and secured at the lower end by wire.

2) The special wellhead rubber sealing plug 3 is inserted into and installed at the mouth of the well from the upper end of the water outlet/exhaust pipe 4-1, and is pressed into the mouth of the well by slight force until only the overhanging part of the upper part of the water outlet/exhaust pipe 4-1 is left outside the mouth of the well, namely only the air release joint 4-3 is exposed on the rubber sealing plug 3.

3) Covering the two semicircular upper semicircular covers on the well pipe mouth to cover the well mouth rubber sealing plug 3, and connecting the two semicircular upper semicircular covers together through the horizontal limiting screw hole 1-1 by using a bolt.

4) A positioner 7 is welded on the lower edge of the upper well cover, and a lower well cover is arranged on the lower edge of the positioner 7; namely, the two lower semicircular ring covers are connected together by a bolt through a horizontal limiting screw hole 2-1.

5) And connecting the upper well cover 1 with the lower well cover 2 through the vertical limiting screw holes 1-3 and 2-3 by using bolts 6, and finishing the installation.

The disassembling step is just opposite to the assembling step, and is not described herein.

The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.

Claims

1. The detachable closed type dewatering well lid is characterized in that the detachable closed type dewatering well lid is provided with a circular upper well lid (1) and an annular lower well lid (2), and the lower well lid (2) is fixed under the upper well lid (1) through a connecting mechanism and has the same outer diameter;

the upper well cover (1) is composed of two semicircular upper semicircular covers, the centers of the two upper semicircular covers are both provided with concave semicircular grooves, the two upper semicircular covers are connected with a bolt (6) through a shoe-shaped nut (8) and form a circular hole in the middle, the circular hole is provided with a rubber sealing plug (3), and the rubber sealing plug (3) is provided with a water outlet/exhaust hole;

the lower well cover (2) is composed of lower semicircular ring covers of two semicircular rings, and the two lower semicircular ring covers are connected together through a limiting screw hole (2-1);

the lower surface of the upper well cover (1) and the inner diameter of the lower well cover are both provided with rubber water stop rings;

a water outlet/exhaust pipe (4-1) is vertically inserted into a circular through hole in the center of the upper well lid (1), the upper end of the water outlet/exhaust pipe (4-1) protrudes out of the upper well lid (1), an air release joint (4-3) is arranged at the protruding part of the upper end, and at least one sealing gasket (4-2) is arranged between the outer wall of the water outlet/exhaust pipe (4-1) and the water outlet/exhaust hole.

2. The detachable closed manhole cover according to claim 1, wherein the water outlet/air outlet hole is in interference fit with the sealing gasket (4-2).

3. The detachable closed type manhole cover for falling water according to claim 1, wherein the outer side walls of the upper semicircular cover and the lower semicircular cover are provided with at least two fixing lug seats which are overlapped in the height direction, the fixing lug seats are provided with limiting screw holes, and the lower manhole cover (2) is fixed under the upper manhole cover (1) by passing screws through the limiting screw holes of the upper semicircular cover and the lower semicircular cover.

4. The detachable closed type manhole cover of claim 1, wherein the locator (7) for locating the lower manhole cover (2) is welded on the outer edge of the lower surface of the upper semicircular cover.

5. The detachable closed type manhole cover according to claim 1, wherein rubber gaskets (1-4) are arranged at the outer diameter of the rubber sealing plug (3) and the inner diameter of the semicircular groove.

6. The detachable closed manhole cover according to claim 1, wherein the rubber sealing plug (3) is provided with a metal pull ring (3-1).

7. The detachable closed type manhole cover according to claim 6, wherein the upper surface of the rubber sealing plug (3) is provided with a pull ring groove (3-2).