CN217204183U

CN217204183U - Light well point dewatering system for subway foundation pit construction

Info

Publication number: CN217204183U
Application number: CN202220070542.6U
Authority: CN
Inventors: 刘欢欢; 董国明
Original assignee: Individual
Current assignee: Feng Xiandong; Lu Sen
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-08-16
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a light well point dewatering system for subway foundation pit construction, which belongs to the technical field of subway construction and comprises a water collecting main pipe, wherein the water collecting main pipe is communicated with a connecting pipe, the upper part of a well point pipe forms an inserting section, and the inserting section is detachably connected with the connecting pipe through a butting mechanism; docking mechanism includes: the two mounting plates are fixed on two sides of the inserting section, and slots are respectively formed in the outer end faces of the two mounting plates; the sleeve is fixed on the outer side of the lower end of the connecting pipe; two hooks arranged on two sides of the sleeve; locking rods respectively fixed at the lower ends of the two hooks; and the locking hooks are respectively arranged on the two mounting plates. During the construction, press the upper end of couple and make the couple outwards open can insert the sleeve with the grafting section in, then loosen the couple, in the slot that the couple rotated messenger coupler body on the mounting panel under spring force effect, on the locking pole of hanging the locking on the couple coupler body again, prevent that the couple from outwards rotating, so with well point pipe articulate on the connecting pipe, improved the efficiency of construction.

Description

Light well point dewatering system for subway foundation pit construction

Technical Field

The utility model relates to a light-duty well point dewatering system of subway foundation pit construction belongs to subway construction technical field.

Background

Along with the continuous development of cities, the mileage of urban subways is continuously increased, and related construction along the subway line inevitably involves a large number of foundation pit excavation projects. The light well point dewatering is that well point pipes are arranged along the periphery or one side of a foundation pit at certain intervals, the lower ends of the well point pipes are sunk into a water-containing layer deeper than a base, the upper ends of the well point pipes are connected with a water collecting main pipe, and underground water is continuously pumped out through the well point pipes by utilizing pumping equipment and collected into the water collecting main pipe to be discharged, so that the original underground water level is reduced below the base, the base is free of water and is consolidated on the ground, and the bearing capacity of the base is ensured. The water collecting main pipe and the well point pipe are main components of the light well point dewatering system, and in the light well point dewatering system commonly used at present, the water collecting main pipe and the well point pipe are required to be screwed up for many times by means of a mounting tool when being assembled and connected, so that the assembling efficiency is low.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that prior art exists, provide a light-duty well point dewatering system of subway foundation pit construction, the equipment of being convenient for has improved the efficiency of construction.

The utility model discloses an adopt following technical scheme to realize above-mentioned purpose:

a light well point dewatering system for subway foundation pit construction comprises a water collecting main pipe, wherein a plurality of connecting pipes are communicated with the water collecting main pipe, the lower ends of the connecting pipes are coaxially communicated with well point pipes, the upper parts of the well point pipes form an inserting section, and the inserting section is detachably connected with the lower ends of the connecting pipes through a butt joint mechanism;

the docking mechanism includes:

the two mounting plates are fixed on the two axial sides of the inserting section, and slots are respectively formed in the outer end faces, deviating from the two mounting plates, of the two mounting plates;

the sleeve is coaxially fixed on the outer side of the lower end of the connecting pipe, and the inner cavity of the sleeve is used for inserting the inserting section;

the two hooks are oppositely arranged on two axial sides of the sleeve, the lower ends of the two hooks are bent towards the sleeve to form hook bodies, the upper parts of the two hooks are connected with the sleeve through springs, the middle parts of the two hooks are rotatably connected with the sleeve, and the rotating shafts of the two hooks are perpendicular to the axis of the sleeve;

the locking rods are respectively fixed at the lower ends of the two hooks and are parallel to the rotating shafts of the hooks;

install the locking hook on two mounting panels respectively, the one end of locking hook is rotated with the mounting panel and is connected, and the pivot of locking hook is parallel with the pivot of couple, and the other end downwarping of locking hook forms the coupler body.

When the inserting section is inserted into the inner cavity of the sleeve, the hook body at the lower end of the hook can be inserted into and moved out of the slot on the mounting plate through rotation; when the hook body of the hook is inserted into the slot, the locking hook can enable the hook body at the outer end of the locking hook to hook or separate from the locking rod on the hook body through rotation.

Optionally, the inner diameter of the sleeve is larger than the outer diameter of the insertion section, and a sealing ring is embedded in the inner side of the sleeve.

Optionally, the lower port of the sealing ring is gradually increased radially downwards.

Optionally, the two axial sides of the sleeve are respectively provided with an ear seat, and the middle part of the hook is rotationally connected with the ear seats.

Optionally, a filter cartridge is coated on the lower port of the well point pipe.

Optionally, the utility model provides a light-duty well point dewatering system of subway foundation ditch construction still includes the filtering mechanism who sets up between grafting section and connecting pipe lower extreme, filtering mechanism includes:

a filter screen;

the first limiting ring is coaxially arranged on the inner wall of the upper port of the insertion section;

the second spacing collar of coaxial setting port inner wall under the connecting pipe, the filter screen can inlay to be established between first spacing collar and second spacing collar.

Benefits of the present application include, but are not limited to:

the utility model provides a light-duty well point dewatering system of subway foundation ditch construction, (1) press the upper end of couple and make the couple open outwards and can insert the socket section of well point pipe in the sleeve of connecting pipe lower extreme when being under construction, then loosen the couple, the couple rotates under the spring force effect and makes the coupler body insert in the slot on the mounting panel outside the well point pipe, and then hang the locking hook on the locking lever on the coupler body, can prevent the couple from rotating outwards, so couple the well point pipe on the connecting pipe through the cooperation of coupler body and slot, the equipment is convenient, has improved the efficiency of construction; (2) the sealing ring is arranged between the sleeve and the plugging section of the well point pipe, so that the sealing between the sleeve and the well point pipe is ensured. (3) Through set up the filter screen between well point pipe and grafting section and can intercept the impurity of aquatic, prevent that the pump body from being damaged, the clearance is conveniently dismantled to the filter screen moreover.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of a light well point dewatering system for subway foundation pit construction provided by the utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a schematic view of the connection tube, sleeve, hook, etc. of FIG. 2;

FIG. 5 is a schematic illustration of the well site tubular, installation tubular of FIG. 2;

in the figure, 100, a water collecting main pipe; 200. a connecting pipe; 300. well point pipe; 310. a plug section; 400. a docking mechanism; 410. mounting a plate; 420. a slot; 430. a sleeve; 440. hooking; 450. a spring; 460. a lock lever; 470. a locking hook; 480. a seal ring; 490. an ear mount; 500. a filter cartridge; 610. a filter screen; 620. a first spacing collar; 630. and a second limiting ring.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein. Accordingly, the scope of the present invention is not limited by the specific embodiments disclosed below.

As shown in fig. 1, the utility model provides a light-duty well point dewatering system of subway foundation ditch construction, including collecting main 100, the intercommunication has a plurality of connecting pipes 200 on collecting main 100, and the coaxial intercommunication of lower extreme of connecting pipe 200 has well point pipe 300, and the upper portion of well point pipe 300 constitutes grafting section 310, and grafting section 310 can be dismantled through docking mechanism and connecting pipe 200's lower extreme and be connected, and connecting pipe 200 is return bend or straight tube. During construction, water collecting main pipe grooves are dug around a subway foundation pit, well point pipe grooves are formed downwards in the bottoms of the water collecting main pipe grooves, the water collecting main pipes 100 are laid in the water collecting main pipe grooves, then the well point pipes 300 are inserted into the well point pipe grooves, the lower ends of the well point pipes are made to sink into a water-containing layer deeper than a base, and the upper ends of the well point pipes 300 are connected with the water collecting main pipes 100.

As shown in fig. 2-5, the docking mechanism 400 includes:

the two mounting plates 410 are fixed on two axial sides of the insertion section 310, and slots 420 are respectively formed on the outer end faces of the two mounting plates 410, which are opposite to each other;

a sleeve 430 coaxially fixed at the outer side of the lower end of the connection pipe 200, wherein the inner cavity of the sleeve 430 is used for inserting the plug section 310;

the two hooks 440 are oppositely arranged at two axial sides of the sleeve 430, the lower ends of the two hooks 440 are bent towards the sleeve 430 to form a hook body, the upper parts of the two hooks 440 are connected with the sleeve 430 through springs 450, the middle parts of the two hooks 440 are rotatably connected with the sleeve 430, and the rotating shafts of the two hooks 440 are perpendicular to the axis of the sleeve 430;

the locking rods 460 are respectively fixed at the lower ends of the two hooks 440, and the locking rods 460 are parallel to the rotating shaft of the hooks 440;

the locking hooks 470 are respectively arranged on the two mounting plates 410, one end of each locking hook 470 is rotatably connected with the mounting plate 410, the rotating shaft of each locking hook 470 is parallel to the rotating shaft of the corresponding hook 440, and the other end of each locking hook 470 is bent downwards to form a hook body.

When the plug section 310 is inserted into the inner cavity of the sleeve 430, the hook 440 can be rotated to insert and remove the hook body at the lower end into and out of the slot 420 on the mounting plate 410; when the hook body of the hook 440 is inserted into the insertion groove 420, the locking hook 470 can be rotated to hook or disengage the hook body at the outer end thereof to the locking lever 460 on the hook body.

Typically, mounting plates are welded to the bottom of the plug section 310 on both sides, with the inner ends of the hooks 440 mounted on adjacent sides of the end face where the slots are formed.

During construction, the upper end of the hook 440 is pressed to open the hook 440 outwards, so that the plugging section 310 of the well point pipe 300 can be inserted into the sleeve 430 at the lower end of the connecting pipe 200, then the hook 440 is loosened, the hook 440 rotates under the elastic action of the spring 450 to enable the hook body to be inserted into the slot 420 on the mounting plate 410 outside the well point pipe 300, and then the locking hook 470 is hung on the locking rod 460 on the hook body of the hook 440, so that the hook 440 can be prevented from rotating outwards, and therefore the well point pipe 300 is hung on the connecting pipe 200 through the matching of the hook body of the hook 440 and the slot 420, the assembly is convenient, and the construction efficiency is improved. When the well point pipe 300 is disassembled, the locking hook 470 is rotated to be separated from the locking rod 460, and the upper end of the hook 440 is pressed to enable the hook body of the hook 440 to be separated from the slot 420, so that the well point pipe 300 can be drawn out from the sleeve 430.

In a preferred embodiment, in order to ensure the sealing between the sleeve 430 and the well pipe 300, it is preferable that the inner diameter of the sleeve 430 is larger than the outer diameter of the plug section 310, and a sealing ring 480 is embedded inside the sleeve 430, and the sealing ring 480 is compressed between the plug section 310 and the sleeve 430 when the plug section 310 of the well pipe 300 is inserted into the sleeve 430.

Furthermore, the lower port of the sealing ring 480 is gradually increased radially downward, so that the plugging section 310 of the well point pipe 300 can be smoothly inserted into the sealing ring 480.

In one embodiment, the sleeve 430 is provided with ear seats 490 at both axial sides thereof, and the middle portion of the hook 440 is rotatably connected to the ear seats 490.

In order to reduce the absorption of impurities into the well pipe 300, it is preferable that the lower end of the well pipe 300 is coated with a filter cartridge 500.

Further, in order to further prevent the impurity that inhales well point pipe 300 from getting into the pump body, the utility model provides a light-duty well point precipitation system of subway foundation pit construction still includes the filtering mechanism who sets up between grafting section 310 and connecting pipe 200 lower extreme. Specifically, the filter mechanism includes:

a filter screen 610;

the first limiting ring 620 is coaxially arranged on the inner wall of the upper port of the plug section 310;

the second spacing collar 630 is coaxially disposed on the inner wall of the lower port of the connection tube 200, and the filter screen 610 can be embedded between the first spacing collar 620 and the second spacing collar 630.

The filter screen can intercept the impurity that gets into in the well point pipe 300, prevents that the pump body from being damaged, and the clearance is conveniently dismantled to the filter screen moreover.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above-mentioned specific embodiments can not be regarded as the restriction to the protection scope of the present invention, to the technical personnel in this technical field, it is right that any replacement improvement or transformation that the embodiment of the present invention made all fall within the protection scope of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. A light well point dewatering system for subway foundation pit construction is characterized by comprising a water collecting main pipe, wherein the water collecting main pipe is communicated with a plurality of connecting pipes, the lower ends of the connecting pipes are coaxially communicated with well point pipes, the upper parts of the well point pipes form an insertion section, and the insertion section is detachably connected with the lower ends of the connecting pipes through a butt joint mechanism;

the docking mechanism includes:

the two mounting plates are fixed on two axial sides of the inserting section, and the outer end faces of the two mounting plates, which are far away from each other, are respectively provided with a slot;

the two hooks are oppositely arranged on two axial sides of the sleeve, the lower ends of the two hooks are bent towards the sleeve to form hook bodies, the upper parts of the two hooks are connected with the sleeve through springs, the middle parts of the two hooks are rotatably connected with the sleeve, and rotating shafts of the two hooks are perpendicular to the axis of the sleeve;

locking rods respectively fixed at the lower ends of the two hooks, wherein the locking rods are parallel to the rotating shafts of the hooks;

2. The light well point dewatering system for subway foundation pit construction as claimed in claim 1, wherein the inner diameter of said sleeve is larger than the outer diameter of said plug section, and a sealing ring is embedded inside said sleeve.

3. A light well point dewatering system for underground pit construction according to claim 2, wherein the lower port of the sealing ring is radially and downwardly gradually enlarged.

4. The light well point dewatering system for subway foundation pit construction according to claim 1, wherein ear seats are respectively provided at axial both sides of the sleeve, and the middle part of the hook is rotatably connected with the ear seats.

5. The lightweight well point dewatering system for subway foundation pit construction as claimed in claim 1, wherein the lower end of said well point pipe is coated with a filter cartridge.

6. The light well point dewatering system for subway foundation pit construction as claimed in claim 1, further comprising a filtering mechanism disposed between the plug section and the lower end of the connecting pipe, said filtering mechanism comprising:

a filter screen;