CN108612108A - Deep basal pit device for plugging - Google Patents

Abstract

The invention discloses deep basal pit device for plugging, which is characterized in that including：Airsac tube is hollow cavity between bimetallic tube and inner and outer wall, and described airsac tube the other end is connected with the filter plate and filtering elastic piece of annular, is provided with air bag in the air bag pipe outer wall, multiple second holes are provided on the air bag inside pipe wall；Position-limiting tube, one end is extended with the baffle of annular to outer vertical tube wall, the baffle is close to filter plate sealing and is inserted into the hollow cavity of the airsac tube, the position-limiting tube is provided with multiple third holes along its circumferential circle, rotor plate is additionally provided with inside the position-limiting tube, the radius of the rotor plate is more than the spacing between the filtering elastic piece and shaft；Grouting Pipe is equipped with snap-in structure close to the circumferential snare of the outer wall of one end, can be sticked in just in multiple corresponding second holes and third hole.The present invention makes full use of the sealing of water the progress pipe outer wall and tube passage gushed out, moreover it is possible to realize that timely slip casting blocks.

Description

Deep basal pit device for plugging

Technical field

The present invention relates to architectural engineering class Construction Techniques for Deep Foundation Pit fields.It is more particularly related to which deep basal pit is stifled Leakage device.

Background technology

Foundation pit enclosure structure is underground concealed engineering, and foundation pit leaking can cause foundation pit construction and surrounding enviroment very big shadow It rings, therefore leak stopping processing is carried out to leaking area in time after excavation of foundation pit.Leakage stoppage of foundation pit generally uses plugging material at present Leak stopping directly is carried out to leakage area, or leak stopping is carried out from the method for ground pilot hole slip casting, pilot hole grouting method is in practical behaviour During work, because not knowing that how high actual leakage area is apart from ground, if just there is leak inside very deep foundation pit Situation, the pilot hole time is longer at this time, and plugging phenomenon can also occur for plugging material when slip casting, can not be successfully realization leak stopping.Use leak stopping Material directly carries out leak stopping to waterleakage part, first has to the leakage hole for finding leak, is inserted into Grouting Pipe and carries out leak stopping, if The larger water burst of flow can rush rotten plugging material, it is therefore desirable to first by water burst discharge a part carry out leak stopping again, in addition water burst to The filtrate or strainer of installation filtering are needed during gushing outside, otherwise sand can follow water burst to gush out together, cause foundation pit It destroys.

Invention content

It is an object of the present invention to provide deep basal pit device for plugging, the water gushed out is made full use of to carry out pipe outer wall logical with pipe The sealing in road, moreover it is possible to realize that timely slip casting blocks.

In order to realize these purposes and other advantages according to the present invention, deep basal pit device for plugging is provided, including：Air bag Pipe, is hollow cavity between bimetallic tube and inner and outer wall, the one end sealing between the airsac tube inner and outer wall, The other end is connected with the filter plate of annular, and the filter plate is divided into impartial even number part along its circumferential direction, and by there is filter opening The interlaced integrated molding of the second plate of first plate and sealing, the filter plate pass through on the surface of airsac tube axis line side Tubular plate is fixed with annular slab, and internal diameter is equal to the internal diameter of filter plate and annular slab is parallel with filter plate and proper between filter plate Good engaging has filtering elastic piece, to be provided with multiple filter openings on round and filtering elastic piece, the air bag pipe outer wall upper edge its Be arranged at intervals with multiple first holes on circumferential and length direction, sealing is communicated with air bag, the air bag inside pipe wall upper edge its Circumferential one, which encloses uniform intervals, is provided with multiple second holes；Position-limiting tube, one end are extended with the baffle of annular to outer vertical tube wall, Completely the same with the structure of filter plate, the outer diameter of the baffle is identical as the internal diameter of air bag pipe outer wall, the baffle it is interior Diameter is slightly less than the internal diameter of the air bag inside pipe wall, and the baffle is close to the hollow cavity that filter plate sealing is inserted into the airsac tube Interior, the position-limiting tube is provided with the identical third hole of multiple one-to-one and diameters with the second hole along its circumferential circle, described Position-limiting tube is fixed with the shaft vertical with inner wall on the inner wall between baffle and third hole, the shaft passes through in position-limiting tube Be arranged on axis and shaft with the identical circular rotatable plate of limit bore, can be axis using shaft in position-limiting tube inward turning Turn, the radius of the rotor plate is more than the spacing between the filtering elastic piece and shaft；Grouting Pipe, close to the outer of one end The circumferential snare of wall is equipped with snap-in structure, can be sticked in just in multiple corresponding second holes and third hole.

Preferably, the circumferential circle of the slip casting pipe outer wall, which is recessed inwardly, is provided with multiple grooves, is all provided in the groove It is equipped with the first spring, the deep equality under the first spring free state with groove, the snap-in structure includes sleeve and more A engaging column, the sleeve is sheathed on the slip casting pipe outer wall just and one end is concordant with one end of Grouting Pipe, the sleeve edge Its circumferential circle is provided with the through-hole of multiple perforation sleeves, and through-hole is radially formed with to sleeve sunken inside a pair of recessed relatively Hole；Multiple engaging columns just with multiple second holes and third hole corresponding matching, multiple engaging columns also with multiple grooves correspond It matching, the engaging column outer wall, which is recessed inwardly, is provided with opposite a pair of of concave channel, is inside both provided with second spring, and second Spring is connected with a grade column, and the shelves column is matched with shrinkage pool and the length of shelves column is more than the depth of shrinkage pool.

Preferably, the snap-in structure further includes the arc-shaped fanning strip of polylith, the arc-shaped fanning strip of polylith and its tip Opposite arc-shaped side one end is articulated with the sleeve ends concordant with Grouting Pipe, the arc-shaped fanning strip of the polylith arc opposite with its tip Shape side constitutes a circle equal with sleeve diameter just, and the arc-shaped fanning strip of polylith forms the close of the class taper of complete seal just Sealing plate.

Preferably, the limit inside pipe wall is provided with the limiting plate of the semicircular arc of vertical walls, simultaneously close to shaft Between baffle and shaft.

Preferably, the end outer wall of the airsac tube outwardly is provided with more extended lines and corresponds to by multiple second holes The graduation mark of axis, the end outer wall of the position-limiting tube outwardly are also equipped with more extended lines by multiple third holes central axes The number in graduation mark, second hole and third hole is equal with the number that filter plate is divided into and multiple on filter plate The central axes of first plate and the second plate correspond and parallel with more graduation marks.

Preferably, further include accessory plate and observation tube, the accessory plate is matched with just in the position-limiting tube, described auxiliary It helps on plate and is additionally provided with the through hole of perforation bottom surface thereon, the observation tube is L-type and one end sealing connection through hole, another End is pierced by outside the position-limiting tube straight up.

Preferably, the slip casting inside pipe wall sliding is provided perpendicular to the stull of wall surface, and a pair of of card is fixed in stull Item, strip one end protrude from outside Grouting Pipe, and the rotor plate is provided with a pair of of depending post on its opposite a pair of of surface, It is fixed on that rotor plate is located at the surface of limiting plate side, the other end is parallel to rotation plate surface and and rotor plate for L-type and one end Side wall it is concordant, the end of the other end of the depending post, which is recessed inwardly, is formed with card hole, when rotor plate rotation be its central axes When perpendicular to position-limiting tube central axes, the end of a pair of of depending post protrusion is sticked in just in the card hole of a pair of of depending post.

The present invention includes at least following advantageous effect：

1, the setting of the invention by airsac tube and position-limiting tube is, it can be achieved that make full use of the water gushed out to carry out pipe by air bag The sealing of outer wall and tube passage.

2, the present invention also utilizes filter plate and filters the filtering that elastic piece realizes water burst, can prevent sand etc. from being gushed with water Go out.

3, of the invention snap-in structure and fanning strip hinged thereon can be realized multi-functional, you can realize the second hole and The engaging in third hole, the ferrule for also achieving Grouting Pipe open perforation again.

Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.

Description of the drawings

Fig. 1 is the structural schematic diagram of airsac tube of the present invention and position-limiting tube；

Fig. 2 is the structural schematic diagram of filter plate of the present invention；

Fig. 3 is the sectional view in the faces A-A in Fig. 1 of the present invention；

Fig. 4 is the structural schematic diagram of Grouting Pipe of the present invention and snap-in structure；

Fig. 5 is the structural schematic diagram of fanning strip of the present invention；

Fig. 6 is rotor plate of the present invention and the matched structural schematic diagram of strip.

Reference sign：

1, airsac tube, 101, filtering elastic piece, 102, annular slab, 103, filter plate, 104, air bag, the 105, second hole, 106, the first plate, the 107, second plate, 2, position-limiting tube, 201, baffle, 202, third hole, 203, shaft, 204 rotor plates, 205, limit Position plate, 206, depending post, 3, Grouting Pipe, 301, groove, the 302, first spring, 303, stull, 304, strip, 4, snap-in structure, 401, sleeve, 402, engaging column, 403, shelves column, 404, fanning strip, 5, accessory plate, 6, observation tube.

Specific implementation mode

Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text Word can be implemented according to this.

It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute Reagent and material are stated, unless otherwise specified, is commercially obtained；In the description of the present invention, term " transverse direction ", " vertical To ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", the instructions such as "outside" side Position or position relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description, It is not instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, because This is not considered as limiting the invention.

As shown in Figures 1 to 6, the present invention provides a kind of deep basal pit device for plugging, including：Airsac tube 1 is bimetallic tube and interior It is hollow cavity between wall and outer wall, the one end sealing between 1 inner and outer wall of the airsac tube, the other end is connected with ring The filter plate 103 of shape, the filter plate 103 are divided into impartial even number part, and 106 He of the first plate by there is filter opening along its circumferential direction The 107 interlaced integrated molding of the second plate of sealing, the filter plate 103 pass through on the surface of 1 axis line side of airsac tube Tubular plate is fixed with annular slab 102, internal diameter be equal to the internal diameter of filter plate 103 and annular slab 102 it is parallel with filter plate 103 and with Engaging has filtering elastic piece 101 just between filter plate 103, to be provided with multiple filter openings on round and filtering elastic piece 101, Multiple first holes are arranged at intervals on its circumferential and length direction of 1 outer wall upper edge of the airsac tube, sealing is communicated with air bag 104, its circumferential circle uniform intervals of 1 inner wall upper edge of the airsac tube are provided with multiple second holes 105；Position-limiting tube 2, one end to Outer vertical tube wall be extended with annular baffle 201, it is completely the same with the structure of filter plate 103, the outer diameter of the baffle 201 with The internal diameter of the outer wall of the airsac tube 1 is identical, and the internal diameter of the baffle 201 is slightly less than the internal diameter of 1 inner wall of the airsac tube, described Baffle 201 is close to the sealing of filter plate 103 and is inserted into the hollow cavity of the airsac tube 1, and the position-limiting tube 2 is along its circumferential circle It is provided with the identical third hole 202 of multiple and diameters one-to-one with the second hole 105, the position-limiting tube 2 is in baffle 201 and the Be fixed with the shaft 203 vertical with inner wall on inner wall between three holes 202, the shaft 203 pass through the central axes of position-limiting tube 2 and Circular rotatable plate 204 identical with 2 internal diameter of position-limiting tube is arranged in shaft 203, can with shaft 203 be axis in position-limiting tube 2 Interior rotation, the radius of the rotor plate 204 are more than the spacing between the filtering elastic piece 101 and shaft 203；Grouting Pipe 3, It is equipped with snap-in structure 4 close to the circumferential snare of the outer wall of one end, multiple corresponding second holes 105 and the can be sticked in just In three holes 202.

In the above-mentioned technical solutions, the air bag 104 of 1 outer wall of airsac tube refers to that air bag versatile material is constituted expandable Elastomer can expand air bag 104 after being passed through with the water of certain pressure in airsac tube 1, so that airsac tube 1 is salable It is sticked in leak stopping channel, prevents water or sand at water burst hole from being leaked out from the outer wall of airsac tube 1, on the other hand since water burst is taken out It is also waste water after going out, it is by from external diversion to be sealed the space between tube wall and tube passage by air bag in existing method Other materials that air bag 104 can be caused to expand either are ventilated or are passed through, cost is higher, and the present invention is directly to utilize to gush out Water come carry out air bag 104 expand, realize sealing, make full use of existing water source.Filter opening on first plate 106 and filtering elasticity Filter opening on piece 101 can filter out sandstone etc., may make the water gushed out without sand etc., filtering elastic piece 101 has certain elasticity Bendability is closed by annular slab 102 and tubular board, and tubular plate is on the outside of filter plate 103, and annular slab 102 Outer ring be fixed on the outer end of tubular plate so that be formed between annular slab 102 and filter plate 103 receiving filtering elastic piece 101 Space.The baffle 201 and the structure of filter plate 103 of 2 end set of position-limiting tube are completely the same, and are had by interlaced The plate of filter opening and the plate of sealing are integrally formed, and form the first plate 106 of the number and composition filter plate 103 of the plate of baffle 201 It is identical with the number of the second plate 107, it, can be by the plate and the first plate with filter opening on baffle 201 when being filtered 103 drainage of plate 106 is corresponding, without drainage, when the end by airsac tube 1 being needed to be sealed, and rotatable position-limiting tube 2 so that baffle Plate and the second plate 107 on 201 with filter opening correspond just.Leak stopping is carried out using the device for plugging of above-mentioned technical proposal Concrete operation step is as follows：

If water burst is more serious, first filtering material is imported into water burst hole, then is inserted into a discharge part with drainpipe and gushes After water, take out drainpipe, then by the present invention device for plugging airsac tube 1 and position-limiting tube 2 work good after one end along draining The position that pipe is inserted into is inserted at water burst hole, and other end protrusion is located in foundation pit.Pass through filter plate 103 and filtering elastic piece 101 Drainage is carried out, filtered water enters in the hollow cavity of airsac tube 1 and in position-limiting tube 2, at this time the rotor plate in position-limiting tube 2 204 rotations are slightly inclination and not contact filtration elastic piece 101 makes water may flow into 2 inside of position-limiting tube, are limited when there are flowing out When position pipe 2 is outer, position-limiting tube 2 can be fully sealed in the insertion sub-fraction of snap-in structure 4 by Grouting Pipe 3 and thereon, when insertion Then internal face is provided with a sealing plate in 3 inner wall of Grouting Pipe, is preferably located at the inner end of Grouting Pipe 3, wait for a timing quietly Between after, after water is filled up completely in 1 cavity of position-limiting tube 2 and airsac tube, rotary spacing pipe 2 so that baffle 201 can be blocked and be sealed Filter plate 103 so that the no longer drainage of filter plate 103, the second hole 105 at this time and third hole 202 correspond and relative to the The central axes in two holes 105 and third hole 202 overlap, and the second hole 105 and third hole 202 are arranged preferably close to rotor plate 204.Again will The rotation of rotor plate 204 is the outer wall sealing that its outer wall is close to position-limiting tube 2 so that water cannot enter back into position-limiting tube 2, inwardly push away Dynamic Grouting Pipe 3, water is pressed into from multiple second holes 105 and third hole 202 in the hollow cavity of airsac tube 1, with into one Step inwardly pushes Grouting Pipe 3, water to continue into the hollow cavity of airsac tube 1, to which multiple air bags 104 expand outward, supports Sealing and plugging channel is played the role of in the firmly channel of leak stopping.Until the snap-in structure 4 in Grouting Pipe 3 sticks into the second hole 105 and the The hollow cavity of airsac tube 1 is fully sealed in three holes 202, the sealing plate removal in Grouting Pipe 3 is rotated further by rotor plate at this time 204, if also extra water burst, continue to draw water, if it is not, will rotation rotor plate 204 to its just will be in position-limiting tube 2 Part for completely through two parts, due to rotor plate 204 radius be more than filtering elastic piece 101 and shaft 203 between Away from, therefore can will be filtered in space of the elastic piece 101 between annular slab 102 and filter plate 103 in 204 rotation process of rotor plate It is detached from, to by 3 smooth slip casting of Grouting Pipe, realize and block again.

In another technical solution, the circumferential circle of 3 outer wall of the Grouting Pipe, which is recessed inwardly, is provided with multiple grooves 301, It is both provided with the first spring 302 in the groove 301, the depth phase under 302 free state of the first spring with groove 301 Include sleeve 401, multiple engaging columns 402 and the arc-shaped fanning strip 404 of polylith Deng, the snap-in structure 4, the sleeve 401 is just It is sheathed on 3 outer wall of the Grouting Pipe well and one end is concordant with one end of Grouting Pipe 3, the sleeve 401 is along its circumferential circle setting There is the through-hole of multiple perforation sleeves 401, through-hole is radially opposite to be formed with a pair of of shrinkage pool to 401 sunken inside of sleeve；Multiple cards Zygostyle 402 just with 202 corresponding matching of multiple second holes 105 and third hole, multiple engaging columns 402 also with multiple grooves 301 1 One correspondence matches, and engaging 402 outer wall of column, which is recessed inwardly, is provided with opposite a pair of of concave channel, is inside both provided with second Spring, second spring are connected with grade column 403, and the shelves column 403 is matched with shrinkage pool and the length of shelves column 403 is more than the depth of shrinkage pool Degree；The arc-shaped fanning strip 404 of polylith arc-shaped side one end opposite with its tip is articulated with sleeve 401 end concordant with Grouting Pipe 3 Portion, arc-shaped 404 arc-shaped side opposite with its tip of fanning strip of polylith constitutes a circle equal with 401 diameter of sleeve just, more The sealing plate of the class taper of the arc-shaped 404 lucky composition complete seal of fanning strip of block.

In the above-mentioned technical solutions, the specific snap-fitting process of snap-in structure 4 is：First in Grouting Pipe 3 to 2 interpolation of position-limiting tube Fashionable, multiple engaging columns 402 compress the first spring 302 one-to-one correspondence and are sticked in multiple grooves 301, and engage on column 402 A pair of of shelves column 403 compresses second spring and is located in a pair of of concave channel, and the arc-shaped fanning strip 404 of polylith is proper perpendicular to sleeve 401 The sealing plate for forming a class taper well lives the opening shelves of Grouting Pipe 3, and pressure water is facilitated to enter in the cavity of airsac tube 1, after It is continuous to move inward Grouting Pipe 3, when multiple engaging columns 402 are moved to multiple second holes 105 and third hole 202 are corresponded with it When position, engaging column 402, which is detached under the elastic reaction of the first spring 302 from groove 301, snaps onto the second hole 105 and third In hole 202, simultaneously, a pair of of shelves column 403 on column 402 is engaged when being moved outwardly to the position of a pair of of shrinkage pool, engages column During 402 snap onto shrinkage pool under the elastic force effect of second spring, since engaging column 402 is fastened on the second hole 105 and third hole 202 In, and engaging has the shelves column 403 engaged on column 402 in sleeve 401, therefore sleeve 401 will not continue to movement, therefore after The arc-shaped fanning strip of continuous polylith when moving inward Grouting Pipe 3, being hinged on sleeve 401 404 will be in 3 inward force of Grouting Pipe Under the action of rotation to be close to 2 inner wall of position-limiting tube, the adjacent side of the arc-shaped fanning strip 404 of polylith is complete when sealing 3 mouthfuls of Grouting Pipe It is close to seal entirely, tip also seals up, and the seal of a class taper is constituted, due to moving inward, in conjunction with the reaction of hydraulic pressure Power, arc-shaped 404 leakproofness of fanning strip of polylith are preferable.It is to realize the second hole 105 and third hole 202 by snap-in structure 4 Engaging, the ferrule for also achieving Grouting Pipe 3 open perforation again.

In another technical solution, 2 inner wall of the position-limiting tube is provided with the limiting plate of the semicircular arc of vertical walls 205, close to shaft 203 and between baffle 201 and shaft 203.When the rotation of rotor plate 204 is to be close to 2 inner wall of position-limiting tube When, bottom surface is close to limiting plate 205, can prevent being rotated further for rotor plate 204, the structure of limiting plate 205 from justifying for semi-circular Arc structure.

In another technical solution, the end outer wall of the airsac tube 1 outwardly, which is provided with more extended lines and corresponds to, to be passed through The graduation mark of multiple second hole, 105 central axes, the end outer wall of the position-limiting tube 2 outwardly are also equipped with more extended lines through excessive The number in the graduation mark of a 202 central axes of third hole, second hole 105 and third hole 202 is divided into filter plate 103 Number it is equal, and the central axes of 106 and second plate 107 of multiple first plates on filter plate 103 and more graduation marks one are a pair of It answers and parallel.By the setting of graduation mark, more preferably positioned when position-limiting tube 2 may make to rotate, so that the second hole 105 and third hole 202 correspond to, and in addition the number in the second hole 105 and third hole 202 is equal with the number that filter plate 103 is divided into, and may make Third hole 202 when just starting on position-limiting tube 2 is corresponding with the second hole 105, needs rotary spacing pipe 2 to seal filter plate later When 103, or the graduation mark on airsac tube 1 carried out with the graduation mark on position-limiting tube 2 corresponding, you can realize 105 He of the second hole The correspondence in third hole 202.Corresponding figure when Fig. 2 and Fig. 3 is the first plate 106 and the second plate 107 is respectively three, and Fig. 4 and Fig. 5 Be arc-shaped fanning strip 404 be four pieces when structure chart.

Further include accessory plate 5 and observation tube 6 in another technical solution, the accessory plate 5 is matched with the limit just In the pipe 2 of position, the through hole for penetrating through bottom surface thereon is additionally provided on the accessory plate 5, the observation tube 6 is L-type and one end is close Envelope connection through hole, the other end are pierced by outside the position-limiting tube 2 straight up.The setting of accessory plate 5 to be inserted into Grouting Pipe 3 Before, the water level in observable position-limiting tube 2 and airsac tube 1, vertical open-ended of observation tube 6 is higher than 1 upper end of airsac tube, passes through The water level of 6 VERTICAL TUBE of observation tube can determine whether water level.

In another technical solution, 3 inner wall of the Grouting Pipe slides the stull 303 for being provided perpendicular to wall surface, stull A pair of of strip 304 is fixed on 303,304 one end of strip protrudes from outside Grouting Pipe 3, the rotor plate 204 its opposite one To being provided with a pair of of depending post 206 on surface, it is fixed on the table that rotor plate 204 is located at 205 side of limiting plate for L-type and one end Face, the other end are parallel to 204 surface of rotor plate and, the end of the other end of the depending post 206 concordant with the side wall of rotor plate 204 Portion, which is recessed inwardly, is formed with card hole, when rotor plate 204 rotates as its central axes perpendicular to 2 central axes of position-limiting tube, a pair of cooperation The end that bar 206 protrudes is sticked in just in the card hole of a pair of of depending post 206.

In the above-mentioned technical solutions, it when rotor plate 204, which rotates, needs to eject filtering elastic piece 101, must limit Vertical in the pipe 2 of position, i.e., along the central axes of position-limiting tube 2, and the central axes horizontal vertical of rotor plate 204 is in the central axes of position-limiting tube 2, In order to make rotor plate 204 resist filtering elastic piece 101 always, prevents it to be contacted again 1 mouthful of airsac tube, influence slip casting, another party Face is also that rotor plate 204 is positioned as vertical device, minimum to the influential effect of slip casting, therefore is provided in Grouting Pipe 3 Stull 303, stull 303 is the body of rod that both ends can be slided in a small range along the inner wall of 3 length direction of Grouting Pipe, to Grouting Pipe 3 Spacial influence it is smaller, when the rotation of rotor plate 204 is vertical state, sliding stull 303 is so that a pair of of strip 304 thereon engages In the card hole of a pair of of depending post 206, the limit to rotor plate 204 is realized.

Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and legend shown and described herein.

Claims (7)

1. deep basal pit device for plugging, which is characterized in that including：

Airsac tube is hollow cavity between bimetallic tube and inner and outer wall, one between the airsac tube inner and outer wall End part seal, the other end are connected with the filter plate of annular, and the filter plate is divided into impartial even number part along its circumferential direction, and passes through There are the interlaced integrated molding of the second plate of the first plate and sealing of filter opening, table of the filter plate close to airsac tube axis line side Annular slab is fixed with by tubular plate on face, internal diameter be equal to the internal diameter of filter plate and annular slab it is parallel with filter plate and with filtering Engaging has filtering elastic piece just between plate, is that multiple filter openings are provided on circle and filtering elastic piece, outside the airsac tube Multiple first holes are arranged at intervals on its circumferential and length direction of wall upper edge, seals and is communicated with air bag, in the airsac tube Its circumferential circle uniform intervals of wall upper edge are provided with multiple second holes；

Position-limiting tube, one end are extended with the baffle of annular, the gear completely the same with the structure of filter plate to outer vertical tube wall The outer diameter of plate is identical as the internal diameter of air bag pipe outer wall, and the internal diameter of the baffle is slightly less than the internal diameter of the air bag inside pipe wall, The baffle is close to filter plate sealing and is inserted into the hollow cavity of the airsac tube, and the position-limiting tube is along its circumferential circle setting There are the identical third hole of multiple and diameters one-to-one with the second hole, inner wall of the position-limiting tube between baffle and third hole On be fixed with the shaft vertical with inner wall, the shaft passes through to be arranged with and limit bore in the central axes of position-limiting tube and shaft Identical circular rotatable plate can be rotated using shaft as axis in position-limiting tube, and the radius of the rotor plate is more than the filtering Spacing between elastic piece and shaft；

Grouting Pipe is equipped with snap-in structure close to the circumferential snare of the outer wall of one end, can be sticked in just multiple corresponding In second hole and third hole.

2. deep basal pit device for plugging as described in claim 1, which is characterized in that the circumferential circle of the slip casting pipe outer wall concaves It falls into and is provided with multiple grooves, be both provided with the first spring in the groove, the depth under the first spring free state with groove Spend equal, the snap-in structure includes sleeve and multiple engaging columns, and the sleeve is sheathed on the slip casting pipe outer wall and one just End is concordant with one end of Grouting Pipe, and the sleeve is provided with the through-hole of multiple perforation sleeves along its circumferential circle, and through-hole is along its diameter To opposite a pair of of shrinkage pool is formed with to sleeve sunken inside；Multiple engaging columns just with multiple second holes and third hole corresponding matching, Multiple engaging columns are also matched with multiple grooves one-to-one correspondence, and the engaging column outer wall is recessed inwardly, and to be provided with opposite a pair recessed Channel is inside both provided with second spring, and second spring is connected with a grade column, and the shelves column is matched with shrinkage pool and the length of shelves column More than the depth of shrinkage pool.

3. deep basal pit device for plugging as claimed in claim 2, which is characterized in that the snap-in structure further includes that polylith is arc-shaped Fanning strip, the arc-shaped fanning strip of polylith arc-shaped side one end opposite with its tip are articulated with the sleeve ends concordant with Grouting Pipe, The arc-shaped fanning strip of the polylith arc-shaped side opposite with its tip constitutes a circle equal with sleeve diameter, the arc-shaped fan of polylith just Shape plate forms the sealing plate of the class taper of complete seal just.

4. deep basal pit device for plugging as described in claim 1, which is characterized in that the limit inside pipe wall is provided with vertical walls Semicircular arc limiting plate, close to shaft and between baffle and shaft.

5. deep basal pit device for plugging as claimed in claim 2, which is characterized in that the end outer wall setting of the airsac tube outwardly There are more extended lines to correspond to the graduation mark by multiple second holes central axes, the end outer wall of the position-limiting tube outwardly is also equipped with More extended lines pass through the graduation mark of multiple third holes central axes, and the number and filter plate in second hole and third hole are impartial The number being divided into is equal, and the central axes of multiple first plates and the second plate on filter plate correspond and put down with more graduation marks Row.

6. deep basal pit device for plugging as described in claim 1, which is characterized in that further include accessory plate and observation tube, it is described auxiliary It helps plate to be matched with just in the position-limiting tube, the through hole for penetrating through bottom surface thereon, the sight is additionally provided on the accessory plate Pipe is examined as L-type and one end sealing is connected to through hole, the other end is pierced by outside the position-limiting tube straight up.

7. deep basal pit device for plugging as claimed in claim 4, which is characterized in that the slip casting inside pipe wall sliding is provided with vertical In being fixed with a pair of of strip in the stull of wall surface, stull, strip one end protrudes from outside Grouting Pipe, and the rotor plate is opposite at it A pair of of surface on be provided with a pair of of depending post, be fixed on the surface, separately that rotor plate is located at limiting plate side for L-type and one end One end is parallel to rotation plate surface and concordant with the side wall of rotor plate, and the end of the other end of the depending post is recessed inwardly to be formed There is card hole, when rotor plate rotates as its central axes perpendicular to position-limiting tube central axes, the end of a pair of of depending post protrusion is blocked just Together in the card hole of a pair of of depending post.