CN210529678U

CN210529678U - Flexible liquid bag for sealing and filling end space of underground continuous wall

Info

Publication number: CN210529678U
Application number: CN201921418315.2U
Authority: CN
Inventors: 李向阳; 李晓利; 姜兆礼; 姚秋辉
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: 2020-05-15
Anticipated expiration: 2029-08-29

Abstract

The utility model relates to a flexible liquid bag that is used for underground continuous wall tip space to seal to pack, including the bottom valve of the bag top mechanism and the utricule bottom at utricule, counter weight, utricule top, the utricule includes kavala inner bag and sulfide layer, and the sulfide layer cladding is at the skin of kavala inner bag. The flexible liquid bag of the utility model has high strength, high wear resistance and high tear resistance, long service life, light weight, small volume after folding, simple transportation and low production cost; the bag at utricule top mechanism and the bottom valve cooperation of utricule bottom make the utility model discloses a flexible liquid bag can seal fast and fill up and connect wall end space, has shortened the packing time, easy operation, safe and reliable, the material resources of using manpower sparingly moreover.

Description

Flexible liquid bag for sealing and filling 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 flexible liquid bag that is used for underground continuous wall tip space to seal to fill.

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 publication No. CN104278697A discloses a slurry bag for sealing and filling the end space of underground diaphragm wall, which is formed by fluidizing rubber and fiber reinforced layer, and has a certain softness but not enough strength to bear the weight of the liquid or slurry in the slurry bag and the pressure outside the bag. Moreover, the mud bags are relatively large-sized devices, which require light weight and convenient transportation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a flexible liquid bag that is used for underground continuous wall tip space to seal to fill up, it adopts kevlar as the inner bag, and outside cladding multilayer cord fabric and one deck sulphide layer have anti physiosis intensity, elasticity, water proofness, light in weight moreover, folding back is small, the transportation is simple and convenient.

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

a flexible liquid bag for sealing and filling an end space of an underground diaphragm wall comprises a bag body, a counterweight, a bag top mechanism at the top of the bag body and a bottom valve at the bottom of the bag body, wherein the bag body comprises a Kevlar inner container and a vulcanized layer, and the vulcanized layer is coated on the outer layer of the Kevlar inner container.

Preferably, the bladder further comprises a cord fabric, and the cord fabric is located between the kevlar liner and the vulcanized layer.

Preferably, the bag top mechanism comprises a water inlet and suction pipe, a water inlet pipe, an exhaust pipe, a weight port and a pressure gauge for detecting the internal pressure of the bag body; the first end of the water inlet and suction pipe is inserted into the bag body, and the second end of the water inlet and suction pipe is connected with a water suction pipe or a water outlet pipe of the self-priming pump; the first end of the water inlet pipe is inserted into the bag body, and the second end of the water inlet pipe is connected with a tap water pipe; the first end of the exhaust pipe is inserted into the capsule body, and the second end of the exhaust pipe is connected with the atmosphere outside the capsule body; the pressure gauge is arranged on the exhaust pipe; the weight port is communicated with the inside and the outside of the bag body of the flexible liquid bag, and the traction rope passes through the weight port to send the weight into the bag body.

Preferably, the bag top mechanism is fixed to the top of the bag body through a bag top outer end cover, a bag top inner end cover and two staggered hoops, the bag top inner end cover is mounted inside the bag body and is held tightly by the two staggered hoops, the bag top outer end cover is mounted on the outer end face of the top of the bag body, and the water inlet pipe, the water inlet pipe and the exhaust pipe all penetrate through the bag top outer end cover and the bag top inner end cover and are communicated with the inside of the bag body.

Preferably, the bottom valve comprises a valve body and a connecting pipe, the connecting pipe is fixed to the bottom of the bag body, the first end of the connecting pipe is located inside the bag body, and the valve body is clamped with the first end of the connecting pipe.

Preferably, a first boss is arranged at the first end of the connecting pipe; the valve body includes the valve body end cover and sets up multiunit extension spring, landing leg, the spring that rises and couple below the valve body end cover, be equipped with two-way pull ring on the valve body end cover, the side of valve body end cover along circumference be equipped with the second boss of first boss block, the upper end of landing leg with the valve body end cover is connected, the landing leg has the contained angle with the lower surface of valve body end cover, the first end of extension spring with the valve body end cover is 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 of extension spring with the middle part of landing leg is connected, the landing leg passes through it is connected with.

Preferably, a leather basin for protecting the bottom valve of the flexible liquid bag is arranged outside the bag body.

Preferably, be equipped with the supporting component who is used for supporting the utricule in the utricule, the supporting component includes first bracing piece, second bracing piece and is used for adjusting the driving piece of distance between first bracing piece and the second bracing piece, first bracing piece supports on the inner wall of utricule, the second bracing piece supports on the utricule inner wall that first bracing piece is relative, the driving piece is located between first bracing piece and the second bracing piece.

Preferably, the number of the driving members is 2, each driving member includes an oil cylinder, a first connecting rod and a second connecting rod, a first end of each first connecting rod is movably connected with the first supporting rod, a first end of each second connecting rod is movably connected with the second supporting rod, a second end of each first connecting rod is rotatably connected with a second end of each second connecting rod, a cylinder barrel of each oil cylinder is fixed on the first supporting rod, a piston rod of each oil cylinder is fixed at the joint of the first connecting rod and the second connecting rod, and piston rods of the oil cylinders of the two groups of driving members are arranged in opposite directions.

The utility model also provides a flexible liquid bag that is used for underground continuous wall tip space to seal to fill up, the bottom valve of bag top mechanism and utricule bottom including utricule, utricule top, the utricule includes the sulfide layer that is vulcanized by fibre and rubber and forms.

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

(1) the utility model discloses a flexible liquid bag that is used for underground continuous wall end space to seal to fill, utricule have Kevlar inner bag and sulfide layer, have anti physiosis intensity, elasticity and water proofness, have high strength, high wear-resisting and high tear resistance, long service life, light in weight moreover, folding back is small, the transportation is simple and convenient, easily machine-shaping, low in production cost.

(2) The utility model discloses a flexible liquid bag can seal fast and fill out connecting wall end space, has shortened and has sealed the time of filling out, easy operation, safe and reliable, the material resources of using manpower sparingly moreover. The bag top mechanism comprises a water inlet and suction pipe, a water inlet pipe, an exhaust pipe and a pressure gauge, the water inlet and suction pipe is connected with a self-priming pump, the water inlet pipe is connected with a tap water pipe, the flexible liquid bag smoothly enters the tank under the action of gravity of a counterweight in the bag body in the process of hoisting the flexible liquid bag into the tank, the self-priming pump injects water into the bag body of the flexible liquid bag through the water inlet and suction pipe, meanwhile, tap water enters the bag body through the water inlet pipe, and the water injection is stopped when the pressure in the bag body reaches a preset; in the water injection process, the flexible liquid-state bag bottom valve is closed, and due to good sealing performance, clear water in the bag is prevented from flowing out of the bag body, meanwhile, a vent valve on the vent pipe is opened to completely vent air in the bag body, so that the interior of the bag body is completely clear water, and the bag body is prevented from changing due to the pressure volume of the concrete after pressurization reaches a preset value; before extracting flexible liquid bag, the clear water in with flexible liquid bag is in advancing the drinking-water pipe extraction slurrying ware to the self priming pump, make the outside that the capsule was filled to the fresh milk, along with the clear water in the flexible liquid bag constantly reduces, the capsule top-down of flexible liquid bag contracts gradually, when the clear water extraction in the bag was clean, the end space was filled to the fresh milk is all made to the clear water, whole capsule also contracts and resumes former shape, hang out the slotted hole with flexible liquid bag after, open flexible liquid bag bottom valve, with the remaining clear water drain-out at the bottom of the capsule. 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 capsule body can be completely discharged.

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 structural view of a flexible liquid bladder for sealing and filling an end space of an underground diaphragm wall according to the present invention;

fig. 2 is a schematic structural diagram of the capsule of the present invention;

FIG. 3 is a schematic structural view of the bottom valve of the present invention;

fig. 4 is a schematic structural diagram of the support assembly of the present invention.

In the figure: 1-bag body, 2-bag top mechanism, 3-bottom valve, 4-leather basin, 6-counterweight, 11-Kevlar inner container, 12-cord fabric, 13-vulcanized layer, 21-water inlet pipe, 22-water inlet pipe, 23-air outlet pipe, 24-pressure gauge, 25-counterweight hole, 31-connecting pipe, 32-valve body, 61-traction rope, 321-valve body end cover, 322-tension spring, 323-supporting leg, 324-tension spring, 325-hook, 51-bag top outer end cover, 52-bag top inner end cover, 53-two alternatively-installed hoops, 3211-bidirectional pull ring, 7-support component, 71-first support rod, 72-second support rod, 73-driving piece, 731-first connecting rod, 732-second connecting rod, 733-oil cylinder.

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 figure 1, the utility model provides a flexible liquid bag that is used for underground continuous wall tip space to pack, including utricule 1, counter weight 6, the bag top mechanism 2 at utricule top and the bottom valve 3 of utricule bottom. The bag body 1 comprises a Kevlar inner container 11 and a vulcanized layer 13, and the vulcanized layer 13 is coated on the outer layer of the Kevlar inner container 11. The fabric is characterized by further comprising a cord fabric 12, wherein the cord fabric 12 is located between the Kevlar liner 11 and the vulcanized layer 13. The section of the bag body can be in a trapezoid shape, a square shape or a convex shape.

The vulcanized layer is formed by vulcanizing rubber, rubber and fiber, rubber and cord fabric or rubber, fiber and cord fabric.

Kevlar, the original English name KEVLAR, also translated into Kevlar or Kevlar, is an aramid fiber material, is "poly-p-phenylene terephthalamide", the repeating unit of the chemical formula is- [ -CO-C6H4-CONH-C6H4-NH- ] -the amide group connected on the benzene ring is a para-position structure, because Kevlar has low density and high strength, the strength is 5 times of that of steel with the same mass, but the density is only one fifth of that of the steel with the same mass, the flexible liquid capsule has light weight and is convenient to transport, and the high strength enables the capsule body to bear the weight of more clear water and the pressure from mud outside the capsule body; the Kevlar is tough and wear-resistant, is resistant to acid and alkali and corrosion of organic solvents, and is easy to process and form, so that the flexible liquid bag has high strength, high wear resistance, high tear resistance and long service life; kevlar has good flexibility and is easy to fold, so the flexible liquid bag of the utility model has light weight, small volume after folding, simple and convenient transportation and low production cost. The covering of the cord fabric further enhances the capability of the flexible liquid bag to bear pressure, impact load and strong vibration. The outermost vulcanized layer provides good sealability and impact resistance.

As shown in fig. 2, the bladder 1 includes a kevlar liner 11, a cord fabric 12 and a vulcanized layer 13, the multilayer cord fabric 12 and the vulcanized layer 13 are sequentially coated outside the kevlar liner 11, and the vulcanized layer 13 is formed by vulcanizing rubber or the vulcanized layer is formed by vulcanizing rubber and fiber. Preferably, the shade fabric 12 has 4 plies.

The bladder body can be composed of a Kevlar liner 11 and a vulcanized layer 13, wherein the vulcanized layer is formed by vulcanizing rubber, or the vulcanized layer is formed by vulcanizing rubber and fibers, or the vulcanized layer is formed by vulcanizing rubber, fibers and cord fabric.

In another embodiment, the bladder may be formed solely from the vulcanized layer 13, the vulcanized layer 13 being vulcanized from rubber and fiber, or the vulcanized layer being vulcanized from rubber, fiber and cord fabric.

The capsule top mechanism 2 comprises a water inlet and suction pipe 21, a water inlet pipe 22, an exhaust pipe 23, a weight port 25 and a pressure gauge 24 for detecting the internal pressure of the capsule body 1; the first end of the water inlet and suction pipe 21 is inserted into the capsule body 1, and the second end of the water inlet and suction pipe 21 is connected with a water suction pipe or a water outlet pipe of the self-priming pump and is used for injecting water into the capsule body or pumping out clean water in the capsule body; the first end of the water inlet pipe 22 is inserted into the capsule body 1, and the second end of the water inlet pipe 22 is connected with a tap water pipe and is used for injecting water into the capsule body; the water inlet and suction pipe 21 and the water inlet pipe 22 can simultaneously inject water into the bag body, so that the water injection efficiency is increased, the water injection time is shortened, and the sealing and filling time of the end space of the underground diaphragm wall is further shortened. A first end of the exhaust pipe 23 is inserted into the capsule body 1, and a second end of the exhaust pipe 23 is connected with the atmosphere outside the capsule body 1; the exhaust pipe 23 is provided with an air release valve for discharging the gas in the capsule body 1, the pressure gauge 24 is arranged on the exhaust pipe 23, and the pressure gauge 24 is used for detecting the pressure in the capsule body 1 in real time to ensure the smooth operation of the sealing and filling process; the weight port 25 is communicated with the inside and the outside of the bag body 1 of the flexible liquid bag, the traction rope 61 penetrates through the weight port 25 to send the weight into the inside of the bag body, the weight of the whole flexible liquid bag is increased, and when the flexible liquid bag is hoisted into the tank, the weight of the weight in the bag body enables the flexible liquid bag to be accurately positioned into the tank. When not in use, the weight 6 can be taken out from the bag body through the traction rope 61, and the flexible liquid bag can be folded and stored.

The bag top mechanism 2 is fixed on the top of the bag body 1 through a bag top outer end cover 51, a bag top inner end cover 52 and two anchor ears 53 which are installed in a staggered mode, the bag top inner end cover 52 is installed inside the bag body 1 and is tightly held by the two anchor ears 53 which are installed in a staggered mode, the bag top outer end cover 51 is installed on the outer end face of the top of the bag body 1, and the water inlet and suction pipe 21, the water inlet pipe 22, the exhaust pipe 23 and the balance weight hole 25 all penetrate through the bag top outer end cover 51 and the bag top inner end cover 52 to be communicated with the inside of the bag.

As shown in fig. 3, the bottom valve 3 comprises a valve body 32 and a connection pipe 31, the connection pipe 31 is fixed at the bottom of the capsule body 1, a first end of the connection pipe 31 is located inside the capsule body 1, and a first boss is arranged at the first end of the connection pipe 31; the valve body 32 comprises a valve body end cover 321 and a plurality of groups of tension springs 322 arranged below the valve body end cover 321, a support leg 323, a tension spring 324 and a hook 325, wherein a bidirectional pull ring 3211 is arranged on the valve body end cover 321, a second boss clamped with the first boss is circumferentially arranged on the side surface of the valve body end cover 321, the upper end of the support leg 323 is connected with the valve body end cover 321, an included angle is formed between the support leg 323 and the lower surface of the valve body end cover 321, the first end of the tension spring 322 is connected with the valve body end cover 321, the connection point of the tension spring 322 and the valve body end cover 321 is located on the outer side of the connection point of the support leg 323 and the valve body end cover 321.

After flexible liquid bag hoists the entering groove, when pouring the clear water in to flexible liquid bag, flexible liquid bag bottom valve is in the closed condition, at this moment, the second boss of valve body end cover 321 and the first boss block of takeover 31, the lower extreme of landing leg 323 supports on the inner wall of takeover 31, extension spring 322 provides the pulling force, the holding power that first boss provided and the pulling force synergism of extension spring keep the stability of valve body end cover to guarantee the leakproofness, avoid the clear water outflow in the bag body. Before extracting the flexible liquid bag, the clear water in the flexible liquid bag is pumped to the slurrying machine by the self-priming pump, and the fresh slurry is made to be poured into the outside of the bag body. Along with the clear water in the flexible liquid bag constantly reduces, the utricule body top-down of flexible liquid bag contracts gradually, after the clear water extraction in the bag finishes, the clear water makes new thick liquid and pours into the end space into, opens flexible liquid bag bottom valve, and the lower extreme of landing leg 323 and the first boss joint of takeover 31, with the help of the elasticity of spring 324 that rises, couple 325 catches on first boss, and the holding power of landing leg cooperates the pulling force of couple to guarantee the stability of valve body end cover, and the clear water that remains at the bottom of the bag is all discharged. Switching between the open and closed states of the base valve is accomplished by pulling on a bi-directional pull ring 3211 on the end cap of the valve body.

The outer part of the bag body 1 is provided with a leather basin 4 for protecting the bottom valve 3 of the flexible liquid bag, and the bottom valve of the flexible liquid bag is protected while the slurry outside the bag is prevented from flowing into the bag body.

As shown in fig. 4, a supporting component 7 for supporting the bag body is arranged in the bag body 1, the supporting component 7 is connected through a chain and extends into the bag body from the bag top, and the supporting component 7 can be pulled out of the bag body by pulling the chain when not in use; the support assembly 7 comprises a first support bar 71, a second support bar 72 and a drive 73 for adjusting the distance between the first support bar and the second support bar, the first support bar 71 is supported against the inner wall of the capsule, the second support bar 72 is supported against the inner wall of the capsule opposite to the first support bar, and the drive 73 is located between the first support bar and the second support bar. The number of the driving members 73 is 2, each driving member 73 includes an oil cylinder 733, a first connecting rod 731 and a second connecting rod 732, a first end of the first connecting rod 731 is movably connected to the first supporting rod 71, a first end of the second connecting rod 732 is movably connected to the second supporting rod 72, a second end of the first connecting rod 731 is rotatably connected to a second end of the second connecting rod 732, a cylinder of the oil cylinder 733 is fixed to the first supporting rod 71, a piston rod of the oil cylinder 733 is fixed to a connection position of the first connecting rod 731 and the second connecting rod 732, and piston rods of the oil cylinders of the two groups of driving members 73 are opposite in direction. In an initial state, the first support rod 71 and the first support rod 72 are close to each other, piston rods of the two oil cylinders are not ejected out, and an included angle between the first connecting rod 731 and the second connecting rod 732 is small; when using flexible liquid bag, need strut the utricule, then start hydro-cylinder 733, the piston rod of two hydro-cylinders is ejecting simultaneously, makes the contained angle grow between first connecting rod 731 and the second connecting rod 732, can reach 180 at most, and the distance between first bracing piece 71 and the second bracing piece 72 increases, struts the utricule, alright in order to carry out operations such as water injection. The purpose of providing two sets of driving members is to keep the distance in the length direction between the first support rod 71 and the second support rod 72 the same even though the inner diameters of the upper and lower portions of the balloon are the same. The distance between the tops of the first support rod 71 and the second support rod 72 and the top of the bag is 1/4 of the total length of the bag body, so that the whole bag body is completely expanded.

Adopt the utility model discloses a method that flexible liquid bag packed underground continuous wall end space does: the water inlet and suction pipe 21 at the top of the bag is connected with a self-priming pump, the water inlet pipe 22 is connected with a tap water pipe, after the flexible liquid bag is hoisted into the tank, the self-priming pump injects water into the bag body of the flexible liquid bag through the water inlet and suction pipe 21, meanwhile, tap water enters the bag body through the water inlet pipe 22, the pressure gauge 24 detects the pressure in the bag body in real time, and the water injection is stopped when the pressure in the bag body reaches a preset value; in the water injection process, the flexible liquid-state bag bottom valve is closed, and due to good sealing performance, clear water in the bag is prevented from flowing out of the bag body, meanwhile, a vent valve on the vent pipe 23 is opened to completely vent air in the bag body, so that the interior of the bag body is completely clear water, and the bag body is ensured not to change due to the pressure volume of the concrete after pressurization reaches a preset value; before the flexible liquid-state bag is extracted, clean water in the flexible liquid-state bag is extracted into a pulping device through a water inlet pipe by a self-sucking pump, fresh pulp is made to fill into the outside of the bag body, the clean 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 clean water in the bag is completely extracted, the clean water is completely made into fresh pulp to fill into an end space, the whole bag body is also contracted to restore the original shape, after the flexible liquid-state bag is lifted out of a slotted hole, a bottom valve of the flexible liquid-state bag is opened, the residual clean water at the bottom of the bag is completely discharged, and the end.

To sum up, the utility model discloses a flexible liquid bag has high strength, high wear-resisting, high tear resistance and good leakproofness, long service life, light in weight moreover, folding back small, the transportation is simple and convenient, easily machine-shaping, low in production cost. The sealing and filling device can rapidly seal and fill the space of the end of the connecting wall, shortens the sealing and filling time, and is simple in operation, safe, reliable and labor-saving.

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 flexible liquid bag for sealing and filling an end space of an underground continuous wall is characterized in that: the device comprises a bag body (1), a counterweight (6), a bag top mechanism (2) at the top of the bag body and a bottom valve (3) at the bottom of the bag body, wherein the bag body (1) comprises a Kevlar inner container (11) and a vulcanized layer (13), and the vulcanized layer (13) is coated on the outer layer of the Kevlar inner container (11); the weight (6) enters the capsule from the top through a traction rope (61).

2. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 1, wherein: the capsule body (1) further comprises a cord fabric (12), and the cord fabric (12) is located between the Kevlar liner (11) and the vulcanization layer (13).

3. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 1, wherein: the capsule top mechanism (2) comprises a water inlet and suction pipe (21), a water inlet pipe (22), an exhaust pipe (23), a weight port (25) and a pressure gauge (24) for detecting the internal pressure of the capsule body (1); the first end of the water inlet and suction pipe (21) is inserted into the capsule body (1), and the second end of the water inlet and suction pipe (21) is connected with a water suction pipe or a water outlet pipe of the self-priming pump; the first end of the water inlet pipe (22) is inserted into the capsule body (1), and the second end of the water inlet pipe (22) is connected with a tap water pipe; the first end of the exhaust pipe (23) is inserted into the capsule body (1), and the second end of the exhaust pipe (23) is connected with the atmosphere outside the capsule body (1); the pressure gauge (24) is arranged on the exhaust pipe (23); the weight holes (25) are communicated with the inside and the outside of the bag body (1) of the flexible liquid bag, and the traction rope (61) passes through the weight holes (25) to send the weight objects into the bag body.

4. A flexible liquid bladder for underground diaphragm wall end space obturation according to claim 3, characterised in that: the bag top mechanism (2) is fixed to the top of the bag body (1) through a bag top outer end cover (51), a bag top inner end cover (52) and two staggered hoops (53), the bag top inner end cover (52) is installed inside the bag body (1) and is tightly held by the two staggered hoops (53), the bag top outer end cover (51) is installed on the outer end face of the top of the bag body (1), and the water inlet pipe (21), the water inlet pipe (22) and the exhaust pipe (23) penetrate through the bag top outer end cover (51) and the bag top inner end cover (52) and the bag body (1) are communicated with each other.

5. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 1, wherein: the bottom valve (3) comprises a valve body (32) and a connecting pipe (31), the connecting pipe (31) is fixed to the bottom of the bag body (1), the first end of the connecting pipe (31) is located inside the bag body (1), and the valve body (32) is clamped with the first end of the connecting pipe (31).

6. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 5, wherein: a first boss is arranged at the first end of the connecting pipe (31); the valve body (32) comprises a valve body end cover (321), and a plurality of groups of tension springs (322), support legs (323), tension springs (324) and hooks (325) which are arranged below the valve body end cover (321), a bidirectional pull ring (3211) is arranged on the valve body end cover (321), a second boss clamped with the first boss is arranged on the side surface of the valve body end cover (321) along the circumferential direction, the upper end of the supporting leg (323) is connected with the valve body end cover (321), an included angle is formed between the supporting leg (323) and the lower surface of the valve body end cover (321), the first end of the tension spring (322) is connected with the valve body end cover (321), the connection point of the tension spring (322) and the valve body end cover (321) is positioned at the outer side of the connection point of the supporting leg (323) and the valve body end cover (321), the second end of the tension spring (322) is connected with the middle part of the supporting leg (323), the supporting leg (323) is connected with a hook (325) through the expansion spring (324).

7. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 1, wherein: a leather basin (4) used for protecting the flexible liquid bag bottom valve (3) is arranged outside the bag body (1).

8. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 1, wherein: be equipped with supporting component (7) that are used for supporting the utricule in utricule (1), supporting component (7) include first bracing piece (71), second bracing piece (72) and be used for adjusting driving piece (73) of distance between first bracing piece and the second bracing piece, first bracing piece (71) support on the inner wall of utricule, second bracing piece (72) support on the utricule inner wall that first bracing piece is relative, driving piece (73) are located between first bracing piece and the second bracing piece.

9. The flexible liquid bladder for underground diaphragm wall end space obturation as claimed in claim 8, wherein: the quantity of driving piece (73) is 2 groups, driving piece (73) include hydro-cylinder (733), first connecting rod (731) and second connecting rod (732), the first end of first connecting rod (731) with first bracing piece (71) swing joint, the first end of second connecting rod (732) with second bracing piece (72) swing joint, the second end of first connecting rod (731) with the second end of second connecting rod (732) rotates and is connected, the cylinder of hydro-cylinder (733) is fixed on first bracing piece (71), the piston rod of hydro-cylinder (733) is fixed the junction of first connecting rod (731) and second connecting rod (732), and the piston rod direction of the hydro-cylinder of two groups of driving piece (73) is carried on the back mutually.

10. A flexible liquid bag for sealing and filling an end space of an underground continuous wall is characterized in that: the device comprises a bag body (1), a bag top mechanism (2) at the top of the bag body and a bottom valve (3) at the bottom of the bag body, wherein the bag body (1) comprises a vulcanization layer formed by vulcanizing fibers and rubber.