CN208040388U - A kind of shield machine foam jet device - Google Patents
A kind of shield machine foam jet device Download PDFInfo
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- CN208040388U CN208040388U CN201820394265.8U CN201820394265U CN208040388U CN 208040388 U CN208040388 U CN 208040388U CN 201820394265 U CN201820394265 U CN 201820394265U CN 208040388 U CN208040388 U CN 208040388U
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- nozzle
- foam
- injection
- inner sleeve
- shield machine
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Abstract
The utility model provides a kind of shield machine foam jet device, including nozzle housing and nozzle inner sleeve；Nozzle housing is hollow cylinder；Nozzle inner sleeve includes the storage foam chamber of cylindrical inner sleeve pedestal, hollow cylinder, sprays the buffering ring of through-hole column, circular ring shape；Storage foam chamber rear end with inner sleeve pedestal is concentric is fixedly connected, storage foam chamber front end with injection through-hole column rear end is concentric is fixedly connected, the front end of injection through-hole column with buffering ring rear end is concentric is fixedly connected, buffering ring front end is equipped with fueling injection grate.A kind of the utility model shield machine foam jet device, with the use of the nozzle housing and nozzle inner sleeve of coaxial nested designs, pass through the effect for storing foam chamber, spraying through-hole column, buffering ring and fueling injection grate, it may be implemented to effectively reduce foam and generate vortex in nozzle, alleviate external dregs to block the infiltration of nozzle, while the quick integral replacing to plug nozzle may be implemented.
Description
Technical field
The utility model belongs to shield machine technical field, more particularly, to a kind of shield machine foam jet device.
Background technology
Earth pressure balance shield construction method is widely used in the underground engineering fields such as city piping lane and rail traffic, feature
Be by construct top environment influenced it is small, construction safety efficiently and it is small etc. to ground perturbation.Shield cutter is in balancing earth-pressure shielding machine
" mud cake " can be easy to cause in tunneling process because soil property is uneven and glues knife, cutter head torque variation increase, shield tunneling face soil pressure not
Stablize, screw conveyor casting effect is undesirable and synchronous grouting it is uneven situations such as.Under prior art conditions, in order to
These problems are prevented, usually foam are generated using foam generating system in the construction process, and if by being arranged on cutterhead
Dry foam nozzle is injected into excavation face, and foam and the soil body excavated reach improvement soil body modeling by the stirring of cutterhead and Tu Cang
The purpose of fluidity.But actual in use, since cutterhead forward position construction environment is severe, foaming system loine pressure is uneven in addition
It is even, the obstruction of foam jet is often caused, it is high that there is spray nozzle clogging frequencies, and scavenger duration and replacement installation operation are multiple
Miscellaneous problem.
Invention content
In view of this, the utility model is directed to a kind of shield machine foam jet device, with the use of coaxial nested
The nozzle housing and nozzle inner sleeve of design can by the effect for storing foam chamber, spraying through-hole column, buffering ring and fueling injection grate
To realize that effectively reduce foam generates vortex in nozzle, alleviates external dregs and the infiltration of nozzle is blocked, may be implemented simultaneously
To the quick integral replacing of plug nozzle.
In order to achieve the above objectives, the technical solution of the utility model is realized in：
A kind of shield machine foam jet device, including nozzle housing and nozzle inner sleeve；Nozzle housing is hollow cylinder；
Nozzle inner sleeve includes the storage foam chamber of cylindrical inner sleeve pedestal, hollow cylinder, sprays the buffering of through-hole column, circular ring shape
Ring；Storage foam chamber rear end with inner sleeve pedestal is concentric is fixedly connected, store foam chamber front end and to spray through-hole column rear end coaxial
The heart is fixedly connected, and sprays the front end of through-hole column and buffering ring rear end is concentric is fixedly connected, buffering ring front end is equipped with fueling injection grate；
It stores foam chamber outer wall and is equipped with foam injection hole, housing injection hole corresponding with foam injection hole site is arranged with outside nozzle；Spray
Concentric be nested in nozzle of mouth housing puts on, and nozzle housing bottom end is fixedly connected with inner sleeve pedestal using screw.
In the practical application of the utility model, the foam that foam generating system generates first passes sequentially through housing injection hole
And foam injection hole is injected into storage foam chamber, and then foam is ejected into buffering ring out of injection through-hole column into row buffering,
Then it is sprayed via fueling injection grate.Storage foam chamber increases nozzle back space, plays foam buffering and reduces the work of vortex
With；Buffering ring defines the space of a buffering with fueling injection grate, which can not only alleviate the infiltration of external dregs,
Good effect is also functioned to the uniformity of foam jet.
When foam jet blocks, staff can carry nozzle inner sleeve spare part to region is replaced, and replace the spray of blocking
Mouth inner sleeve is placed and is set in new nozzle in nozzle housing, is realized quick-replaceable nozzle, is effectively increased production efficiency,
And greatly reduce the residence time of staff in the presence of a harsh environment.
Further, inner sleeve pedestal center location is equipped with hexagonal socket head plug.
Blocking cleaning can be carried out to nozzle inner sleeve by opening hexagonal socket head plug.
Further, it sprays and is equipped with rubber pad between through-hole column and buffering ring, cross crotch is opened in the middle part of rubber pad.
Cross crotch is opened in the middle part of rubber pad, fitting of the rubber pad to injection through-hole column is realized, plays the role of sealing.
Further, nozzle housing bottom end is detachably connected with inner sleeve pedestal by hexagon socket cap head screw.
It is fixed using hexagon socket cap head screw, it may be convenient to carry out the dismounting of nozzle housing and inner sleeve pedestal.
Further, fueling injection grate is fixed with buffering ring, rubber pad and injection through-hole column successively by hex bolts.
Further, it stores and is equipped with sealing ring between foam chamber outer wall and nozzle outer casing inner wall.
Further, it sprays and is equipped with sealing ring between through-hole column outer wall and nozzle outer casing inner wall.
Further, sealing ring is equipped between buffering ring outer wall and nozzle outer casing inner wall.
The setting of three seals circle between nozzle housing and nozzle inner sleeve effectively prevents infiltration and the nozzle of external dregs
Interior foam is excessive.
Further, there are two foam injection hole is set, housing injection hole is corresponding with any foam injection hole site.
The design of two foam injection holes may be implemented when replacing nozzle inner sleeve, housing injection hole and foam injection hole
Rapid alignment.
Further, hex bolts is fixed across rubber pad edge part.
Rubber pad edge part is fixed, the excessive of foam is effectively reduced.
Compared with the existing technology, a kind of shield machine of the utility model foam jet device, has the advantage that：
A kind of the utility model shield machine foam jet device, the nozzle housing with the use of coaxial nested designs and spray
Mouth inner sleeve may be implemented to effectively reduce foam by the effect for storing foam chamber, spraying through-hole column, buffering ring and fueling injection grate
Vortex is generated in nozzle, alleviates external dregs and the infiltration of nozzle is blocked, while may be implemented to the quick whole of plug nozzle
Body is replaced.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In the accompanying drawings：
Fig. 1 is a kind of shield machine foam jet device first structure schematic cross-sectional view of the utility model embodiment；
Fig. 2 is a kind of the second schematic structural cross-sectional view of shield machine foam jet device of the utility model embodiment.
Reference sign：
1- nozzle housings；2- nozzle inner sleeves；21- inner sleeve pedestals；22- stores foam chamber；23- sprays through-hole column；24- is buffered
Ring；25- foam injection holes；3- rubber pads；4- fueling injection grates；5- hexagonal socket head plugs；6- hexagon socket cap head screws；7- hexagonal spiral shells
Bolt；8- sealing rings.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs. 1-2, a kind of shield machine foam jet device, including nozzle housing 1 and nozzle inner sleeve 2；Outside nozzle
Set 1 is hollow cylinder；Nozzle inner sleeve 2 includes the inner sleeve pedestal 21 of cylinder, the storage foam chamber 22 of hollow cylinder, injection
The buffering ring 24 of through-hole column 23, circular ring shape；Storage 22 rear end of foam chamber with inner sleeve pedestal 21 is concentric is fixedly connected, storage foam
22 front end of room with injection through-hole column 23 rear end is concentric is fixedly connected, the front end and 24 rear end of buffering ring of injection through-hole column 23 are coaxial
The heart is fixedly connected, and 24 front end of buffering ring is equipped with fueling injection grate 4；It stores 22 outer wall of foam chamber and is equipped with foam injection hole 25, outside nozzle
Set 1 is equipped with housing injection hole corresponding with 25 position of foam injection hole；Nozzle housing 1 is concentric to be nested in nozzle inner sleeve 2, spray
1 bottom end of mouth housing is fixedly connected with inner sleeve pedestal 21 using screw.
In the practical application of the utility model, the foam that foam generating system generates first passes sequentially through housing injection hole
And foam injection hole 25 is injected into storage foam chamber 22, and then foam be ejected into buffering ring 24 out of injection through-hole column 23 into
Then row buffering is sprayed via fueling injection grate 4.Storage foam chamber 22 increases nozzle back space, plays foam buffering and subtracts
The effect of small vortex；Buffering ring 24 defines the space of a buffering with fueling injection grate 4, which can not only alleviate outer
The infiltration of portion's dregs also functions to good effect to the uniformity of foam jet.
When foam jet blocks, staff can carry 2 spare part of nozzle inner sleeve to region is replaced, and replace the spray of blocking
Mouth inner sleeve 2 is placed in new nozzle inner sleeve 2 to nozzle housing 1, realizes quick-replaceable nozzle, effectively increases production effect
Rate, and greatly reduce the residence time of staff in the presence of a harsh environment.
As shown in Figs. 1-2,21 center location of inner sleeve pedestal is equipped with hexagonal socket head plug 5.
Blocking cleaning can be carried out to nozzle inner sleeve 2 by opening hexagonal socket head plug 5.
As shown in Figs. 1-2, rubber pad 3 is equipped between injection through-hole column 23 and buffering ring 24, cross is opened at 3 middle part of rubber pad
Seam.
Cross crotch is opened at 3 middle part of rubber pad, is realized fitting of the rubber pad 3 to injection through-hole column 23, is played the role of sealing.
As shown in Figs. 1-2,1 bottom end of nozzle housing is detachably connected with inner sleeve pedestal 21 by hexagon socket cap head screw 6.
It is fixed using hexagon socket cap head screw 6, it may be convenient to carry out tearing open for nozzle housing 1 and inner sleeve pedestal 21
It unloads.
As shown in Figs. 1-2, fueling injection grate 4 by hex bolts 7 successively with buffering ring 24, rubber pad 3 and injection through-hole column
23 fix.
As shown in Figs. 1-2, it stores and is equipped with sealing ring 8 between 22 outer wall of foam chamber and 1 inner wall of nozzle housing.
As shown in Figs. 1-2, it is equipped with sealing ring 8 between 23 outer wall of injection through-hole column and 1 inner wall of nozzle housing.
As shown in Figs. 1-2, sealing ring 8 is equipped between 1 inner wall of 24 outer wall of buffering ring and nozzle housing.
The setting of three seals circle 8 between nozzle housing 1 and nozzle inner sleeve 2, effectively prevent external dregs infiltration and
Foam in nozzle is excessive.
As shown in Figs. 1-2, there are two foam injection hole 25 is set, housing injection hole and any 25 position pair of foam injection hole
It answers.
The design of two foam injection holes 25 may be implemented when replacing nozzle inner sleeve 2, and housing injection hole is injected with foam
The rapid alignment in hole 25.
As shown in Figs. 1-2, hex bolts 7 is fixed across 3 edge part of rubber pad.
3 edge part of rubber pad is fixed, the excessive of foam is effectively reduced.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of shield machine foam jet device, it is characterised in that：Including nozzle housing (1) and nozzle inner sleeve (2)；The spray
Mouth housing (1) is hollow cylinder；The nozzle inner sleeve (2) includes that cylindrical inner sleeve pedestal (21), hollow cylinder are deposited
The buffering ring (24) for storing up foam chamber (22), spraying through-hole column (23), circular ring shape；The storage foam chamber (22) rear end with it is described interior
Set pedestal (21) is concentric to be fixedly connected, and the storage foam chamber (22) front end and injection through-hole column (23) rear end are concentric
Be fixedly connected, the front end of the injection through-hole column (23) with the buffering ring (24) rear end is concentric is fixedly connected, the buffering
Ring (24) front end is equipped with fueling injection grate (4)；Storage foam chamber (22) outer wall is equipped with foam injection hole (25), outside the nozzle
It covers (1) and is equipped with housing injection hole corresponding with foam injection hole (25) position；The nozzle housing (1) is concentric to be nested in
On the nozzle inner sleeve (2), nozzle housing (1) bottom end is fixedly connected with the inner sleeve pedestal (21) using screw.
2. a kind of shield machine foam jet device according to claim 1, it is characterised in that：The inner sleeve pedestal (21)
Center location is equipped with hexagonal socket head plug (5).
3. a kind of shield machine foam jet device according to claim 2, it is characterised in that：The injection through-hole column
(23) it is equipped with rubber pad (3) between the buffering ring (24), cross crotch is opened in the middle part of the rubber pad (3).
4. a kind of shield machine foam jet device according to claim 3, it is characterised in that：The nozzle housing (1)
Bottom end is detachably connected with the inner sleeve pedestal (21) by hexagon socket cap head screw (6).
5. a kind of shield machine foam jet device according to claim 4, it is characterised in that：The fueling injection grate (4)
It is fixed with the buffering ring (24), the rubber pad (3) and the injection through-hole column (23) successively by hex bolts (7).
6. a kind of shield machine foam jet device according to claim 1, it is characterised in that：The storage foam chamber
(22) sealing ring (8) is equipped between outer wall and the nozzle housing (1) inner wall.
7. a kind of shield machine foam jet device according to claim 6, it is characterised in that：The injection through-hole column
(23) sealing ring (8) is equipped between outer wall and the nozzle housing (1) inner wall.
8. a kind of shield machine foam jet device according to claim 7, it is characterised in that：The buffering ring (24) is outside
Sealing ring (8) is equipped between wall and the nozzle housing (1) inner wall.
9. a kind of shield machine foam jet device according to claim 1, it is characterised in that：The foam injection hole
(25) there are two setting, the housing injection hole is corresponding with any foam injection hole (25) position.
10. a kind of shield machine foam jet device according to claim 5, it is characterised in that：The hex bolts (7)
It is fixed across the rubber pad (3) edge part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820394265.8U CN208040388U (en) | 2018-03-22 | 2018-03-22 | A kind of shield machine foam jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820394265.8U CN208040388U (en) | 2018-03-22 | 2018-03-22 | A kind of shield machine foam jet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040388U true CN208040388U (en) | 2018-11-02 |
Family
ID=63947929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820394265.8U Active CN208040388U (en) | 2018-03-22 | 2018-03-22 | A kind of shield machine foam jet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040388U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425679A (en) * | 2018-03-22 | 2018-08-21 | 辽宁三三工业有限公司 | A kind of shield machine foam jet device |
| CN109611104A (en) * | 2018-12-05 | 2019-04-12 | 黄河科技学院 | Shield tunneling sediment improvement agent injection device |
-
2018
- 2018-03-22 CN CN201820394265.8U patent/CN208040388U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425679A (en) * | 2018-03-22 | 2018-08-21 | 辽宁三三工业有限公司 | A kind of shield machine foam jet device |
| CN109611104A (en) * | 2018-12-05 | 2019-04-12 | 黄河科技学院 | Shield tunneling sediment improvement agent injection device |
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