CN209385136U - Shield launching, the air bag device for receiving portal sealing - Google Patents
Shield launching, the air bag device for receiving portal sealing Download PDFInfo
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- CN209385136U CN209385136U CN201920006129.1U CN201920006129U CN209385136U CN 209385136 U CN209385136 U CN 209385136U CN 201920006129 U CN201920006129 U CN 201920006129U CN 209385136 U CN209385136 U CN 209385136U
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- air bag
- ring
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- sealing
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Abstract
The utility model discloses a kind of shield launchings, the air bag device of reception portal sealing, comprising: pre-buried ring flat-plate is fixedly arranged on the edge of inwall；Ring packing air bag, the outer ring of ring packing air bag are fixedly connected on pre-buried ring flat-plate, and the inner ring of ring packing air bag is formed with gas-filled cavity；Sealing clamp, set on the outside of ring packing air bag, sealing clamp includes the first plate body and the second plate body that can turn down connection, and the first plate body is fixedly connected on pre-buried ring flat-plate by fastener, and the second plate body is resisted against the inner ring of ring packing air bag.It keeps balancing by the soil pressure for establishing air bag inflating pressure and shield machine in the form of an airbag, guarantee that face is stablized, solve the sealing of conventional portal because of water burst caused by construction error, gush sand, security risk caused by soil erosion, spillage, support pressure can not be established in time etc., safety greatly improves.
Description
Technical field
The utility model relates to Shield Construction Technique field more particularly to a kind of shield launchings, the peace for receiving portal sealing
Full airbag apparatus.
Background technique
Existing shield launching receives portal sealing device routinely using pre-buried ring flat-plate, ring packing rubber slab, fan-shaped pressure
Plate and corresponding connection bolt and washer composition.Ring packing rubber is squeezed by folding pressing plate and section of jurisdiction when shield launching, reception
Offset plate forms confined space, achievees the effect that portal is closed, blocks.
Utility model content
For above-mentioned there are problem, a kind of substitute that the utility model is intended to provide shield launching, receives portal sealing
Bag apparatus, it is stronger in soft stratums adaptability such as backfill, rich water sandy gravels, shield launching can be effectively reduced, receive risk.
The utility model realize above-mentioned purpose the technical solution adopted is that: shield launching, receive portal sealing substitute
Bag apparatus comprising:
Pre-buried ring flat-plate is fixedly arranged on the edge of shield sidelining wall；
Ring packing air bag, the outer ring of the ring packing air bag are fixedly connected on the pre-buried ring flat-plate, institute
The inner ring for stating ring packing air bag is formed with gas-filled cavity；And
Sealing clamp, set on the outside of the ring packing air bag, the sealing clamp includes that can turn down connection
First plate body and the second plate body, first plate body are fixedly connected on the pre-buried ring flat-plate, second plate body by fastener
It is resisted against the inner ring of the ring packing air bag.
Preferably, the ring packing air bag is rubber mass air bag, inner ring, which offers, is connected to the gas-filled cavity
Aeration aperture.
Preferably, the aeration aperture is connected to charger by gas tube.
Preferably, inflatable pressure P >=0.8MPa~1.0MPa of the ring packing air bag.
Preferably, the medial surface of the pre-buried ring flat-plate is fixedly welded on anchor rib, the anchor rib is embedded in the liner
The inside of wall.
Preferably, the outer ring of the ring packing air bag fits in the lateral surface of the pre-buried ring flat-plate, the outer ring
Lateral surface be fitted with fixed ring flat-plate, first plate body of the sealing clamp fits in the lateral surface of the fixed ring flat-plate,
The fastener is arranged in first plate body, the fixed ring flat-plate, the outer ring successively to be connected to the pre-buried ring flat-plate.
Preferably, the edge of the inwall is extended in the interior circumferential portal direction of the pre-buried ring flat-plate, interconnecting piece is formed,
The fastener is fixedly connected on the interconnecting piece.
Preferably, the fastener is bolt, the interconnecting piece is equipped with threaded hole, and the fastener is bolted in the spiral shell
In pit.
Preferably, the quantity of the sealing clamp is multiple, and multiple sealing clamps are along the side of the inwall
Edge is evenly arranged.
Preferably, be rotatably connected between the first plate body and the second plate body of the sealing clamp by shaft, described turn
Axis is axially perpendicular to shield direction.
The utility model has the beneficial effects that: changing original sealed rubber plate structure, in the form of an airbag by gas
The soil pressure that capsule inflating pressure and shield machine are established keeps balancing, and guarantees that face is stablized；And air bag can guarantee by inflating pressure
Shield machine shell is fitted closely with portal, preferably to shield machine pressure maintaining, synchronous grouting, the holding of area face stability and other effects.Solution
Determined the sealing of conventional portal because water burst caused by construction error, gush sand, soil erosion, spillage, support pressure can not be established in time
The security risk Deng caused by, safety greatly improve.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 shows the shield launching according to the utility model embodiment, receives the air bag device that portal seals
Exemplary structure schematic diagram.
Fig. 2 shows illustrated according to the exemplary planar structure of the ring packing air bag of the utility model embodiment
Figure.
Fig. 3 shows the exemplary planar structure schematic diagram according to the sealing clamp of the utility model embodiment.
Fig. 4, which is shown, to be illustrated according to the air bag device of the utility model embodiment in the exemplary structure of use state
Figure (shield machine into hole before).
Fig. 5 shows the exemplary partial enlargement structural representation at the A node according to Fig. 4 embodiment.
Fig. 6, which is shown, to be illustrated according to the air bag device of the utility model embodiment in the exemplary structure of use state
Scheme (cutter head of shield machine and shell enter soil layer).
Fig. 7 shows the exemplary partial enlargement structural representation at the B node according to Fig. 6 embodiment.
Fig. 8, which is shown, to be illustrated according to the air bag device of the utility model embodiment in the exemplary structure of use state
Scheme (shield machine shield body is completely into soil layer).
Fig. 9 shows the exemplary partial enlargement structural representation at the C node according to Fig. 8 embodiment.
Figure 10, which is shown, to be shown according to the air bag device of the utility model embodiment in the exemplary structure of use state
It is intended to (when shield machine enters reception portal).
Figure 11 shows the exemplary partial enlargement structural representation at the D node according to Figure 10 embodiment.
Specific embodiment
Illustrate the embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Face debris is fallen in ring packing rubber slab construction error and work progress in existing portal sealing device
To causing portal sealing effect bad between rubber slab and section of jurisdiction, occur water burst, gush sand, soil erosion, spillage, support pressure can not
The construction safety risks such as foundation in time.The alternative ring packing rubber slab of the air bag device of the utility model, in shield machine
Carrying out pneumatic compression before driving to air bag fills gap between section of jurisdiction and structure by air bag completely, contacts between section of jurisdiction and air bag
Area increases, and sealing effect more preferably, effectively reduces shield launching, received construction risk.
Referring to Figure 1, the air bag for showing the shield launching according to the utility model embodiment, receiving portal sealing
The exemplary structure schematic diagram of device, as shown, the air bag device is mainly by pre-buried ring flat-plate 11, ring packing substitute
Capsule 12 and 13 three parts of sealing clamp are constituted, and the wall edge of the shield side of inwall is arranged in.
Specifically, for originating side, pre-buried ring flat-plate 11 is fixedly arranged on the edge of shield sidelining wall 10, pre-buried ring
The size and shape of plate 11 are matched with the shape and size at the edge of inwall 10, pre-buried ring flat-plate 11 along inwall 10 side
It, further, can be by pre-buried ring along setting one week, the edge wall of the side portion embedment inwall 10 of pre-buried ring flat-plate 11
The medial surface of plate 11 is fixedly welded on anchor rib 111, and anchor rib 111 is in z font, and anchor rib 111 is embedded in the interior of inwall 10
Portion may insure pre-buried ring flat-plate 11 and 10 fixation of inwall by the way that anchor rib 111 is arranged.
The edge of inwall 10 is extended in the interior circumferential portal direction of pre-buried ring flat-plate 11, interconnecting piece is formed, so that pre-buried ring
The edge for suitably protruding from inwall 10 of plate 11, but the width of the interconnecting piece is much smaller than between inwall and shield machine shell
Spacing, will not influence passing through for shield machine.
Ring packing air bag 12 is by neoprene, natural rubber processing and fabricating, radial nylon wire dense arrangement, lateral cotton
The sparse arrangement of yarn, intensity is high, flexibility is good, and the blowing pressure >=0.8MPa of the ring packing air bag 12~
1.0MPa.The shape and outer ring size of the ring packing air bag 12 are matched with the shape and size at inwall edge, the ring
The outer ring of shape sealing air bag 12 is fixedly connected on pre-buried ring flat-plate 11, and the inner ring of the ring packing air bag 12 protrudes from
The edge and inside of inwall 10 are formed with gas-filled cavity 121, and the aeration aperture for being connected to gas-filled cavity 121 is offered on the inner ring
122, aeration aperture 122 can further be connected to charger, such as air compressor by gas tube, by aeration aperture 122 to filling
Air, the air pressure in maximum gas-filled cavity 121, the inner ring of the ring packing air bag 12 of rubber mass are entered and left in air cavity 121
It is expanded after inflation, can effectively fill the gap between inwall 10 and shield machine, made shield machine shell and originate portal and closely paste
It closes, the soil pressure established by shield machine and air bag air pressure keep balancing, and solve conventional shield launching into soil pressure during hole
Difficult problem is established, the safety of shield launching, arrival greatly improved.The air bag device of the utility model is backfilling
The soft stratums adaptability such as soil, rich water sandy gravel are stronger, and shield launching can be effectively reduced, receive risk.
Go out referring to Fig. 1 and Fig. 3, Fig. 3 and has been shown according to the exemplary planar structure of the sealing clamp of the utility model embodiment
Be intended to, as shown, sealing clamp 13 is set to the outside of ring packing air bag 12, the quantity of sealing clamp 13 be it is multiple,
And multiple sealing clamps 13 are evenly arranged one week along the edge of inwall 10.Each sealing clamp 13 includes that can turn down connection
One first plate body 131 and one second plate body 132, the first plate body 131 are fixedly connected on the company of pre-buried ring flat-plate 11 by fastener 14
Socket part, the second plate body 132 are resisted against the inner ring of ring packing air bag 12, and it is close that the width of the first plate body 131 is matched with annular
The width for sealing the outer ring of air bag 12, is mainly used for being fixedly connected with pre-buried ring flat-plate 11, the width of the second plate body 132 is matched with
The width of the inner ring of ring packing air bag 12, the second plate body 132 are rotationally connected on the first plate body 13 by shaft 133,
When shield machine is into hole, the shell of shield machine pushes the second plate body 132 direction into hole and rotates, and the second plate body 132 pushes annular
Seal air bag 12 inner ring simultaneously into hole direction turnup, the second plate body 132 can be located at ring packing air bag 12 with
Between shield machine shell, the front side of shield machine shell direct friction ring packing air bag 12 is prevented, to a certain extent may be used
To mitigate the abrasion to ring packing air bag 12.Wherein, sealing keeper plate of steel production can be used in sealing clamp 13.
Further, a fixed ring flat-plate is additionally provided between the lateral surface of ring packing air bag 12 and sealing clamp 13
15, the shape and size of the fixation ring flat-plate 15 are matched with the shape and size of pre-buried ring flat-plate 11, fixed ring flat-plate 15 and pre-buried ring flat-plate
11 are located at the two sides of ring packing air bag 12, wherein by the sandwiched of ring packing air bag 12.Specifically, ring
The outer ring of shape sealing air bag 12 fits in the lateral surface of pre-buried ring flat-plate 11, the outside of the outer ring of ring packing air bag 12
For face paste together in the medial surface of the fixation ring flat-plate 15, the first plate body 131 of sealing clamp 13 fits in the lateral surface of fixed ring flat-plate 15,
The first plate body 131 of sealing clamp 13, fixed ring flat-plate 15, ring packing air bag 12 outer ring and pre-buried ring flat-plate 11 in
Ring corresponds to aperture, and fastener 14 is using bolt and is successively arranged in the first plate body 131, fixed ring flat-plate 15, ring packing substitute
Aperture in the inner ring of the outer ring of capsule 12 and pre-buried ring flat-plate 11, the aperture in the inner ring of pre-buried ring flat-plate 11 be threaded hole and screw thread with
Bolt thread matches, and bolt is screwed together in the threaded hole, so that bolt is fixedly connected on pre-buried ring flat-plate 11, by sealing clamp
13, fixed ring flat-plate 15, ring packing air bag 12 and pre-buried ring flat-plate 11 are fixed together.
Below with reference to particular condition in use, the air bag device of the utility model is further described in detail, together
Sample is by taking shield launching portal as an example.
Referring to fig. 4 and Fig. 5, Fig. 4 show the air bag device according to the utility model embodiment in use state
Exemplary structure schematic diagram (shield machine into hole before), the exemplary part that Fig. 5 shows at the A node according to Fig. 4 embodiment is put
Big structure schematic diagram, as shown, air bag device to be mounted on to the inwall of shield launching portal before shield machine driving
10 outside edge, the inner ring of ring packing air bag 12 and the second plate body 132 of sealing clamp 13 hang naturally in
Portal edge.
The air bag device according to the utility model embodiment is shown in use state referring to Fig. 6 and Fig. 7, Fig. 6
Exemplary structure schematic diagram (cutter head of shield machine and shell enter soil layer), Fig. 7 is shown at the B node according to Fig. 6 embodiment
Exemplary partial enlargement structural representation, as described in Figure, shield machine start into hole, at first, the cutterhead and shell of shield machine front end
Sealing clamp 13 is contacted, 131 Xiang Qianxiang shield direction of the second plate body rotation of sealing clamp 13 is push, sealing clamp 13 is pressed
Ring packing air bag 12 also Xiang Qianxiang shield direction turns down, at this point, by being inflated to inside air bag, air bag drum
It rises, inside air bag air pressure increases, and by the air pressure in control air bag, is allowed to keep balancing with the soil pressure that shield machine is established, air bag
It can guarantee that shield machine shell is fitted closely with portal by inflating pressure, water burst can be effectively prevent, gush sand, soil erosion, spillage.
Shape is being used according to the air bag device of the utility model embodiment referring to shown in Fig. 8 and Fig. 9, Fig. 8 is shown
The exemplary structure schematic diagram (shield machine shield body is completely into soil layer) of state, Fig. 9 are shown at the C node according to Fig. 8 embodiment
Exemplary partial enlargement structural representation, as shown, shield machine shield body is completely into soil layer, at this point, ring packing is safe
Air bag 12 is inflated to maximum gas pressure, to balance the soil pressure of shield machine at this time, in the form of an airbag by air bag inflating pressure with
The soil pressure that shield machine is established keeps balance, guarantees that face is stablized.
The air bag device according to the utility model embodiment is shown in use state referring to Figure 10 and Figure 11, Figure 10
Exemplary structure schematic diagram when portal (shield machine enter receive), Figure 11 is shown at the D node according to Figure 10 embodiment
Exemplary partial enlargement structural representation, as shown, before shield machine enters and receives portal, in the inwall 20 for receiving portal
The side shield Jing Dong edge be arranged air bag device；Then, the second plate body 132 of sealing clamp is tensed with wirerope,
Be pulled upwardly, so that shield machine enters reception portal, carry out pneumatic compression to ring packing air bag 12 make section of jurisdiction with
Gap is filled by air bag completely between structure, and contact area increases between section of jurisdiction and air bag, and sealing effect more preferably, effectively reduces shield
Received construction risk.
Using the shield launching of the utility model, the air bag device of reception portal sealing, change original seal rubber
Hardened structure keeps balancing by the soil pressure for establishing air bag inflating pressure and shield machine in the form of an airbag, guarantees that face is steady
It is fixed；And air bag can guarantee that shield machine shell is fitted closely with portal by inflating pressure, to shield machine pressure maintaining, synchronous grouting, the palm
Sub- face stability holding and other effects is preferably.It solves water burst caused by conventional portal is sealed because of construction error, gush sand, water and soil stream
Security risk caused by mistake, spillage, support pressure can not be established etc. in time, safety greatly improve.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the utility model implementable so that those skilled in the art understands and reads
Qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size,
In the case where not influencing the effect of the utility model can be generated and the purpose that can reach, should all still fall in disclosed in the utility model
Technology contents obtain and can cover in the range of.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " in
Between " and " one " etc. term, be merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model,
Relativeness is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
The above is only the preferred embodiment of the utility model, not does in any form to the utility model
Limitation, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with
Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of shield launching, the air bag device for receiving portal sealing characterized by comprising
Pre-buried ring flat-plate is fixedly arranged on the edge of shield sidelining wall；
Ring packing air bag, the outer ring of the ring packing air bag are fixedly connected on the pre-buried ring flat-plate, the ring
The inner ring of shape sealing air bag is formed with gas-filled cavity；And
Sealing clamp, set on the outside of the ring packing air bag, the sealing clamp includes can turn down connection first
Plate body and the second plate body, first plate body are fixedly connected on the pre-buried ring flat-plate by fastener, second plate body against
In the inner ring of the ring packing air bag.
2. shield launching as described in claim 1, the air bag device for receiving portal sealing, it is characterised in that: the ring
It is rubber mass air bag that shape, which seals air bag, and inner ring offers the aeration aperture for being connected to the gas-filled cavity.
3. shield launching as claimed in claim 2, the air bag device for receiving portal sealing, it is characterised in that: described to fill
Stomata is connected to charger by gas tube.
4. shield launching as described in claim 1, the air bag device for receiving portal sealing, it is characterised in that: the ring
Inflatable pressure P >=0.8MPa~1.0MPa of shape sealing air bag.
5. shield launching as described in claim 1, the air bag device for receiving portal sealing, it is characterised in that: described pre-
The medial surface for burying ring flat-plate is fixedly welded on anchor rib, and the anchor rib is embedded in the inside of the inwall.
6. shield launching as described in claim 1, the air bag device for receiving portal sealing, it is characterised in that: the ring
The outer ring of shape sealing air bag fits in the lateral surface of the pre-buried ring flat-plate, and the lateral surface of the outer ring is fitted with fixed ring
Plate, first plate body of the sealing clamp fit in the lateral surface of the fixed ring flat-plate, and the fastener is successively arranged in
First plate body, the fixed ring flat-plate, the outer ring are to be connected to the pre-buried ring flat-plate.
7. shield launching as claimed in claim 6, the air bag device for receiving portal sealing, it is characterised in that: described pre-
The edge of the inwall is extended in the interior circumferential portal direction for burying ring flat-plate, forms interconnecting piece, the fastener is fixedly connected on
The interconnecting piece.
8. shield launching as claimed in claim 7, the air bag device for receiving portal sealing, it is characterised in that: described tight
Firmware is bolt, and the interconnecting piece is equipped with threaded hole, and the fastener is bolted in the threaded hole.
9. shield launching as described in claim 1, the air bag device for receiving portal sealing, it is characterised in that: described close
It is multiple for sealing the quantity of pressing plate, and multiple sealing clamps are evenly arranged along the edge of the inwall.
10. shield launching as described in claim 1, the air bag device for receiving portal sealing, it is characterised in that: described close
It seals between the first plate body and the second plate body of pressing plate and is rotatably connected by shaft, the shaft is axially perpendicular to shield
Direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006129.1U CN209385136U (en) | 2019-01-03 | 2019-01-03 | Shield launching, the air bag device for receiving portal sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006129.1U CN209385136U (en) | 2019-01-03 | 2019-01-03 | Shield launching, the air bag device for receiving portal sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385136U true CN209385136U (en) | 2019-09-13 |
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ID=67863575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920006129.1U Active CN209385136U (en) | 2019-01-03 | 2019-01-03 | Shield launching, the air bag device for receiving portal sealing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985076A (en) * | 2020-01-03 | 2020-04-10 | 中交二航局第三工程有限公司 | Device and method for stabilizing tunnel face in normal-pressure opening operation of shield tunneling machine |
| CN111520157A (en) * | 2020-05-15 | 2020-08-11 | 中铁工程装备集团有限公司 | Bag type tunnel portal sealing device and using method thereof |
| CN112984115A (en) * | 2021-03-19 | 2021-06-18 | 中建八局轨道交通建设有限公司 | Hinged sealing device of shield machine |
| WO2021196339A1 (en) * | 2020-03-30 | 2021-10-07 | 中铁十四局集团有限公司 | Shield sealing device and shield sealing method |
-
2019
- 2019-01-03 CN CN201920006129.1U patent/CN209385136U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985076A (en) * | 2020-01-03 | 2020-04-10 | 中交二航局第三工程有限公司 | Device and method for stabilizing tunnel face in normal-pressure opening operation of shield tunneling machine |
| WO2021196339A1 (en) * | 2020-03-30 | 2021-10-07 | 中铁十四局集团有限公司 | Shield sealing device and shield sealing method |
| US11905834B2 (en) | 2020-03-30 | 2024-02-20 | China Railway 14Th Bureau Group Co., Ltd. | Shield sealing device and shield sealing method |
| CN111520157A (en) * | 2020-05-15 | 2020-08-11 | 中铁工程装备集团有限公司 | Bag type tunnel portal sealing device and using method thereof |
| CN111520157B (en) * | 2020-05-15 | 2022-07-05 | 中铁工程装备集团有限公司 | Bag type tunnel portal sealing device and using method thereof |
| CN112984115A (en) * | 2021-03-19 | 2021-06-18 | 中建八局轨道交通建设有限公司 | Hinged sealing device of shield machine |
| CN112984115B (en) * | 2021-03-19 | 2023-06-13 | 中建八局轨道交通建设有限公司 | Hinge sealing device of shield machine |
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