CN210461707U

CN210461707U - Bottom valve of flexible liquid bag for sealing end space of underground continuous wall

Info

Publication number: CN210461707U
Application number: CN201921418286.XU
Authority: CN
Inventors: 李向阳; 姚秋辉; 姜兆礼; 李晓利
Original assignee: Shenzhen Csi Artificial Intelligence Big Data Co Ltd
Current assignee: Shenzhen Csi Artificial Intelligence Big Data Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-05
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to a bottom valve of a flexible liquid capsule for sealing and filling the end space of an underground continuous wall, which comprises a valve body and a connecting pipe, wherein the connecting pipe is fixed at the bottom of the flexible liquid capsule, and a first boss is arranged at the first end of the connecting pipe in the capsule; the valve body includes the valve body end cover and sets up the multiunit extension spring in the valve body end cover below, the landing leg, spring and couple expand, the side of valve body end cover is equipped with the second boss with first boss block along circumference, the upper end and the valve body end cover of landing leg are connected, the landing leg has the contained angle with the lower surface of valve body end cover, the first end and the valve body end cover of extension spring are connected, the tie point of extension spring and valve body end cover is located the outside of landing leg and valve body end cover tie point, the second end and the middle part of landing leg of extension spring are connected, the landing leg. When the second boss of the valve body end cover is clamped with the first boss, the bottom valve is in a closed state; when the lower extreme of landing leg and first boss joint, the bottom valve is in the open mode, and at this moment, the couple hooks first boss, with the internal water drainage of bag.

Description

Bottom valve of flexible liquid bag for sealing end space of underground continuous wall

Technical Field

The utility model belongs to the technical field of the underground continuous wall construction, especially, relate to a bottom valve that is used for flexible liquid bag that underground continuous wall tip space was sealed and is filled.

Background

At present, all countries in the world capture opportunities to vigorously promote underground space development and construction; in recent years, modern urban rail transit in China is rapidly developed, and underground garages and shopping malls are also vigorously built. At present, an underground space enclosing structure adopts an underground diaphragm wall, the construction link of the joint of the underground diaphragm wall is complex, and common construction methods comprise throwing and filling a mud bag and a packaging box and utilizing a mud bag for sealing and filling.

The construction method of the throwing and filling mud bag and the packaging box has the following defects: (1) if the wall of the joint is not brushed in place, the smooth transfer of a second-stage reinforcement cage cannot be guaranteed, horizontal reinforcements of the reinforcement cage are difficult to insert into a first-stage I-steel connecting groove, the joint is easy to leak, the mud bag is large in demand, a large-area construction site is occupied, and the standardized construction requirement cannot be met; (2) because the gaps exist around the head sealing box and the locking pipe, the head sealing box and the locking pipe are wrapped by the bypassing concrete, and the joints of the head sealing box and the locking pipe are easy to bend under the action of lateral pressure of the concrete, the head sealing box and the locking pipe need to be continuously pulled out while the concrete is poured, so that the head sealing box and the locking pipe are prevented from being locked by the bypassing concrete, if the slotted hole cannot be pulled out, the subsequent treatment can cause huge economic loss, the construction period is delayed, and the transportation cost of the head sealing box and the locking pipe in and out of a field is high. In conclusion, the construction method of throwing and filling the mud bags and the packaging boxes wastes manpower, material resources, financial resources and time greatly, and the construction period is delayed.

The utility model with publication number CN104278697A discloses a slurry bag for sealing and filling the end space of an underground diaphragm wall, the bottom of the slurry bag is provided with a slurry inlet and outlet valve, one side of the slurry inlet and outlet valve is fixed with the slurry bag through a universal joint, and the other side is free; when the slurry bag enters the tank, the slurry inlet and outlet valve is automatically opened under the action of gravity because one side of the slurry inlet and outlet valve is free, and slurry in the tank can enter the slurry bag; when the slurry bag falls into the bottom of the tank, the bottom of the tank props against the slurry inlet and outlet valve, so that the slurry inlet and outlet valve is closed, and slurry stops pouring into the slurry bag. The slurry inlet and outlet valve is fixed with the slurry bag through a universal joint, the connection mode is not stable enough, and the sealing performance is poor; and the slurry inlet and outlet valve is opened by gravity, the slurry inlet and outlet valve is closed by abutting against the slurry inlet and outlet valve by the groove bottom, and the opening and closing modes have randomness, so that if the opening or closing fails, the sealing failure can be caused, and the construction period is delayed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a bottom valve of a flexible liquid bag for sealing and filling the end space of an underground continuous wall, after the flexible liquid bag is hoisted into a groove, when clean water is filled into the flexible liquid bag, the bottom valve of the flexible liquid bag is closed, and due to the good sealing property, the clean water in the bag is prevented from flowing out of the bag body; before extracting flexible liquid bag, clear water in the flexible liquid bag is taken out from the top of flexible liquid bag by the self-priming pump, extract in the slurrying ware, make the outside that the new thick liquid pours into the utricule, clear water constantly reduces in the flexible liquid bag, the utricule top-down of flexible liquid bag contracts gradually, when treating the clean water extraction in the bag clean, the clear water is whole to be made the new thick liquid and pours into the end space, in the grouting process, flexible liquid bag bottom valve closes, it is internal to avoid the external thick liquid of utricule to get into the utricule, treat that the internal clear water extraction of utricule finishes, whole utricule contracts and resumes former shape, after hanging out the slotted hole with flexible liquid bag, open flexible liquid bag bottom valve, with the remaining clear water of utricule bottom. When the bottom valve is closed, the sealing performance is good, and water in the bag body is prevented from flowing out of the bag body; when the bottom valve is opened, the water in the bag body can be completely discharged, the design of the bottom valve of the flexible liquid bag can conveniently and quickly discharge the clean water in the bag body quickly and completely, and the flexible liquid bag is convenient to use next time.

In order to solve the technical problem, the utility model provides a following technical scheme:

a bottom valve of a flexible liquid bag for sealing and filling an end space of an underground diaphragm wall comprises a valve body and a connecting pipe; the connecting pipe is fixed at the bottom of the flexible liquid capsule, and a first boss is arranged at the first end of the connecting pipe, which is positioned in the capsule body; the valve body comprises a valve body end cover, and a plurality of groups of tension springs, support legs, tension springs and hooks which are arranged below the valve body end cover, wherein a bidirectional pull ring is arranged on the valve body end cover, a second boss which is clamped with the first boss is arranged on the side surface of the valve body end cover along the circumferential direction, the first boss and the second boss are both in a step-shaped structure, the upper end of each support leg is connected with the valve body end cover, and an included angle is formed between each support leg and the lower surface of the valve body end cover; the first end of the tension spring is connected with the valve body end cover, the connecting point of the tension spring and the valve body end cover is positioned on the outer side of the connecting point of the supporting leg and the valve body end cover, the second end of the tension spring is connected with the middle part of the supporting leg, and the supporting leg is connected with a hook through the expansion spring; and a leather basin for protecting the bottom valve of the flexible liquid bag is arranged outside the bag bottom of the flexible liquid bag.

Preferably, said adapter is connected circumferentially to the bladder bottom by means of a first fastening means.

Preferably, the first fastener comprises a nut, a gasket and a bolt, the nut is mounted on the inner side of the bladder bottom, and the bolt passes through the gasket and the bladder bottom in sequence and is in threaded connection with the nut.

Preferably, said adapter is axially connected to the bladder bottom by means of a second fastening means.

Preferably, the second fastener includes screw head, screw and plug, be equipped with the arch on the plug, the first end of screw head with the gasket is connected, the second end of screw head with the screw spiro union, the arch is sunk in the second end of screw head with in the recess that the screw formed, the plug with take over the welding.

Preferably, the flexible liquid bladder bottom is provided with a third fastening piece along the circumferential direction of the connecting pipe for tightly holding the bladder bottom and the connecting pipe.

Preferably, the third fastener is a bead ring or a reinforcing ring.

Compared with the prior art, the utility model discloses following beneficial effect has:

in the process of sealing and filling the end space of the underground continuous wall, after the flexible liquid bag is hoisted into the groove, when clear water is filled into the flexible liquid bag, the bottom valve of the flexible liquid bag is closed, and due to good sealing property, the clear water in the bag is prevented from flowing out of the bag body; before the flexible liquid bag is extracted, clear water in the flexible liquid bag is pumped out from the top of the flexible liquid bag by a self-priming pump and is pumped into a slurrying device to prepare new slurry to be filled outside the bag body, and a bottom valve of the flexible liquid bag is closed in the grouting process to prevent the slurry from entering the bag body; the clear water in the flexible liquid-state bag is continuously reduced, the bag body of the flexible liquid-state bag is gradually contracted from top to bottom, when the clear water in the bag is completely extracted and fresh water is made into fresh slurry to be filled into the end space, the whole bag body is contracted and restored to be in an original shape, after the flexible liquid-state bag is hung out of the slotted hole, the bottom valve of the flexible liquid-state bag is opened, and the residual clear water in the bag bottom is drained. When the bottom valve is closed, the sealing device has good sealing performance, water in the capsule body is prevented from flowing out of the capsule body, and slurry outside the capsule body can be prevented from entering the capsule body; when the bottom valve is opened, the water in the bag body can be completely discharged, the design of the bottom valve of the flexible liquid bag can conveniently and quickly discharge the clean water in the bag body quickly and completely, and the flexible liquid bag is convenient to use next time. The outer portion of the bag bottom of the flexible liquid bag is provided with a leather basin for protecting a bottom valve of the flexible liquid bag, so that the damage to the bottom valve in the hoisting process of the flexible liquid bag is avoided, the service life is prolonged, and meanwhile, the slurry outside the bag is prevented from flowing into the bag body.

Drawings

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

FIG. 1 is a schematic view of the flexible liquid bladder for sealing the end space of an underground diaphragm wall according to the present invention with its bottom valve open;

FIG. 2 is a schematic structural view of the bottom valve of the flexible liquid bladder for underground diaphragm wall end space sealing of the present invention closed;

FIG. 3 is a schematic view of another embodiment of the present invention showing the open configuration of the bottom valve of a flexible liquid bladder for use in the end space packing of an underground diaphragm wall;

fig. 4 is a schematic view of a bottom valve of a flexible liquid bladder for underground diaphragm wall end space sealing according to another embodiment of the present invention, when closed.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and is not intended to limit the scope of the invention. It is to be understood that in the description of the present invention, the terms "front", "back", "left", "right", "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the present invention. The terms "first," "second," "third," and the like are used merely to simplify the description of words for distinguishing between similar elements and are not to be construed as specifying a sequential relationship between particular orders.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 4, the utility model provides a bottom valve of a flexible liquid bag for sealing and filling the end space of an underground continuous wall, which comprises a valve body and a connecting pipe 2; the connecting pipe 2 is fixed on the bottom of the flexible liquid-state bag, the first end of the connecting pipe 2 is positioned in the bag body, and the first end of the connecting pipe 2 is provided with a first boss 21; the valve body comprises a valve body end cover 11 and a plurality of groups of tension springs 12, supporting legs 13, tension springs 14 and hooks 15 which are arranged below the valve body end cover 11, the number of the tension springs 12, the number of the supporting legs 13, the number of the tension springs 14 and the number of the hooks 15 are the same, and the valve body end cover 11 is provided with a bidirectional pull ring 111 for pulling the valve body end cover 11 to move so as to realize the closing or opening of the bottom valve; a second boss clamped with the first boss 21 is arranged on the side surface of the valve body end cover 11 along the circumferential direction, and the first boss and the second boss are both of a step-shaped structure; the upper end of the supporting leg 13 is connected with the valve body end cover 11, an included angle is formed between the supporting leg 13 and the lower surface of the valve body end cover 11, when the second boss of the valve body end cover 11 is clamped with the first boss 21, the flexible liquid bag bottom valve is in a closed state, and at the moment, the lower end of the supporting leg 13 abuts against the inner wall of the connecting pipe 2; when the lower end of the supporting leg 13 is clamped with the first boss 21, the flexible liquid bag bottom valve is in an open state; the first end of extension spring 12 is connected with valve body end cover 11, and the tie point of extension spring 12 and valve body end cover 11 is located the outside of landing leg 13 and valve body end cover 11 tie point, and the second end of extension spring 12 is connected with the middle part of landing leg 13, and landing leg 13 is connected with couple 15 through spring 14 that rises, rises spring 14 and extension spring 12 and is located the different sides of landing leg 13, and when the lower extreme of landing leg 13 and first boss 21 joint, with the help of the elasticity of spring 14 that rises, couple 15 catches on first boss, keeps the stability of bottom valve. The outer part of the bag bottom of the flexible liquid bag is provided with a leather basin 10 for protecting the bottom valve of the flexible liquid bag, so that the bottom valve of the flexible liquid bag is protected and the slurry outside the bag is prevented from flowing into the bag body.

The included angle between the supporting leg 13 and the lower surface of the valve body end cover 11 is preferably 30-60 degrees, when the bottom valve is opened, the lower end of the supporting leg 13 is clamped with the first boss 21, and the upper end of the supporting leg 13 can support the valve body end cover 11; when the bottom valve is closed, the lower ends of the supporting legs 13 can be abutted against the inner wall of the connecting pipe 2, so that the stability of the bottom valve is kept.

The adapter tube 2 is circumferentially connected to the bladder bottom 3 by means of a first fastening means. The first fastener comprises a nut 4, a gasket 5 and a bolt 6, the nut 4 is mounted on the inner side of the bladder bottom 3, and the bolt 6 sequentially penetrates through the gasket 5 and the bladder bottom 3 to be in threaded connection with the nut 4.

The adapter tube 2 is axially connected to the bladder bottom 3 by means of a second fastening means. The second fastener comprises a screw head 7, a screw nut 8 and a plug 9, wherein a protrusion 91 is arranged on the plug 9, the first end of the screw head 7 is connected with the gasket 5, welding is preferable, the second end of the screw head 7 is in threaded connection with the screw nut 8, the protrusion 91 sinks into a groove formed by the second end of the screw head 7 and the screw nut 8, and the plug 9 is welded with the connecting pipe 2.

The first fastener and the second fastener are matched to firmly fix the flexible liquid bag bottom valve on the bag bottom, so that the bottom valve is prevented from falling off when the bag body is filled with water, and the sealing performance of the whole flexible liquid bag is ensured.

As shown in fig. 3 and 4, the flexible liquid bladder bottom 3 is further provided with a third fastening member 30 along the circumference of the adapter tube 2 for tightly holding the bladder bottom and the adapter tube 2, preferably, the third fastening member 30 is a steel wire loop or a steel bar ring 30 for further reinforcing the connection of the bottom valve and the bladder bottom, so that the sealing performance of the flexible liquid bladder is further ensured, and the outflow of clean water in the bladder or the inflow of slurry outside the bladder into the bladder is avoided.

As shown in fig. 1 and 3, the bottom valve of the flexible liquid bag is in an open state, at this time, the lower end of the supporting leg 13 is clamped with the first boss 21 of the adapter 2, the hook 15 hooks the first boss by means of the elastic force of the expanding spring 14, and the supporting force of the supporting leg cooperates with the pulling force of the hook to ensure the stability of the valve body end cover 11; as shown in fig. 2 and 4, in the closed state of the flexible liquid bag bottom valve, at this time, the second boss of the valve body end cover 11 is engaged with the first boss, the lower end of the support leg is abutted to the inner wall of the connection pipe 2, the tension spring 12 provides tension, and the support force provided by the first boss and the tension of the tension spring cooperate to keep the stability of the valve body end cover 11, so that the sealing property is ensured. Switching between the open and closed states of the base valve is achieved by pulling the bi-directional pull ring 111 on the body end cap 11.

After the flexible liquid bag is hoisted into the groove, when clear water is filled into the flexible liquid bag, the bottom valve of the flexible liquid bag is in a closed state, as shown in fig. 2 and 4, at the moment, the second boss of the valve body end cover 11 is clamped with the first boss 21 of the connecting pipe 2, the sealing performance is good, and the clear water in the bag body is prevented from flowing out; before the flexible liquid bag is extracted, clear water in the flexible liquid bag is extracted into a slurry making device by a self-sucking pump to make new slurry to be filled outside the bag body, and in the process of grouting, a bottom valve of the flexible liquid bag is in a closed state, so that the slurry filled outside the bag body is prevented from entering the bag body; along with the clear water in the flexible liquid bag constantly reduces, the utricule body of flexible liquid bag is shrink from top to bottom gradually, after finishing the extraction of clear water in the bag, the clear water is made new thick liquid and is poured into the end space after, open flexible liquid bag bottom valve, as shown in fig. 1 and 3, the lower extreme and the first boss 21 joint of landing leg 13, couple 15 catches on the bottom of first boss, valve body end cover 11 is apart from a section distance of takeover 2, arrange the remaining clear water in the bladder bottom completely, make the shrink of whole utricule body resume former shape, hang out the flexible liquid bag slotted hole.

The design of flexible liquid bag bottom valve can guarantee that the inside clear water of flexible liquid bag is quick and the complete discharge is clean, and is easy and simple to handle, swift, and the leakproofness is good, at the water injection in-process, can avoid the utricule clear water to flow out, and the grout in-process can avoid the outer thick liquid of bag to get into inside the utricule.

Finally, it should be noted that: the above embodiments are only used for illustrating the present invention and do not limit the technical solution described in the present invention; therefore, although the present invention has been described in detail with reference to the above embodiments, it will be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and within the scope and spirit of the following claims.

Claims

1. A bottom valve of a flexible liquid bag for sealing and filling an end space of an underground continuous wall is characterized in that: comprises a valve body and a connecting pipe (2); the connecting pipe (2) is fixed to a bladder bottom (3) of the flexible liquid bladder, and a first boss (21) is arranged at a first end, located in the bladder, of the connecting pipe (2);

the valve body comprises a valve body end cover (11), a plurality of groups of tension springs (12), support legs (13), expansion springs (14) and hooks (15), wherein the groups of tension springs (12), the support legs (13) and the hooks (15) are arranged below the valve body end cover (11), two-way pull rings (111) are arranged on the valve body end cover (11), the side faces of the valve body end cover (11) are circumferentially provided with second bosses clamped with the first bosses (21), the first bosses and the second bosses are of stepped structures, the upper ends of the support legs (13) are connected with the valve body end cover (11), the support legs (13) and the lower surface of the valve body end cover (11) are provided with included angles, the first ends of the tension springs (12) are connected with the valve body end cover (11), the connection points of the tension springs (12) and the valve body end cover (11) are positioned outside the connection points of the support legs (13) and the valve body end cover (, the supporting legs (13) are connected with hooks (15) through expansion springs (14);

a leather basin (10) for protecting the bottom valve of the flexible liquid bag is arranged outside the bag bottom of the flexible liquid bag.

2. The foot valve for a flexible liquid bladder for underground diaphragm wall end space reclamation according to claim 1 wherein: the connecting pipe (2) is connected with the bladder bottom (3) through a first fastening piece in the circumferential direction.

3. The foot valve for a flexible liquid bladder for underground diaphragm wall end space reclamation according to claim 2 wherein: the first fastener comprises a nut (4), a gasket (5) and a bolt (6), the nut (4) is installed on the inner side of the bladder bottom (3), and the bolt (6) sequentially penetrates through the gasket (5) and the bladder bottom (3) to be in threaded connection with the nut (4).

4. The foot valve for a flexible liquid bladder for underground diaphragm wall end space reclamation according to claim 3, wherein: the connecting pipe (2) is axially connected with the bladder bottom (3) through a second fastening piece.

5. The foot valve for a flexible liquid bladder for underground diaphragm wall end space reclamation according to claim 4 wherein: the second fastener includes screw (7), screw (8) and plug (9), be equipped with arch (91) on plug (9), the first end of screw (7) with gasket (5) are connected, the second end of screw (7) with screw (8) spiro union, arch (91) are absorbed in the second end of screw (7) with in the recess that screw (8) formed, plug (9) with take over (2) welding.

6. The foot valve for a flexible liquid bladder for underground diaphragm wall end space reclamation according to claim 1 wherein: and the flexible liquid bladder bottom (3) is provided with a third fastening piece (30) used for tightly holding the bladder bottom (3) and the connecting pipe (2) along the circumferential direction of the connecting pipe (2).

7. The foot valve for a flexible liquid bladder for underground diaphragm wall end space reclamation according to claim 6, wherein: the third fastener (30) is a steel wire ring or a steel bar ring.