CN209510338U - A kind of single hose concrete injection device preventing rebound - Google Patents
A kind of single hose concrete injection device preventing rebound Download PDFInfo
- Publication number
- CN209510338U CN209510338U CN201920104679.7U CN201920104679U CN209510338U CN 209510338 U CN209510338 U CN 209510338U CN 201920104679 U CN201920104679 U CN 201920104679U CN 209510338 U CN209510338 U CN 209510338U
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- China
- Prior art keywords
- air
- concrete
- end plate
- air inlet
- injection device
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- Expired - Fee Related
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- 239000004567 concrete Substances 0.000 title claims abstract description 90
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 239000007921 spray Substances 0.000 claims description 31
- 238000003466 welding Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000011378 shotcrete Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229920006351 engineering plastic Polymers 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model relates to a kind of single hose concrete injection devices for preventing rebound, it is characterised in that: it includes pressure-air nozzle component, concrete gun and air jet system；The pressure-air nozzle component includes end plate, air lance outer tube, air lance inner tube and horn mouth, end plate center is equipped with concrete gun and is inserted into hole, several air inlets are additionally provided on end plate, air lance outer tube one end is connect with end plate outer ring, the other end is connect with the smaller one end of horn mouth diameter, the inner ring connection of air lance inner tube one end and end plate；The concrete gun passes through concrete gun and is inserted into hole, and fixes with end plate；The air jet system includes air inlet pipe identical with air inlet quantity, and the end of air inlet pipe is fixed at corresponding air inlet.The present apparatus can stop concrete springback, avoid waste of material, and also can smooth, squeeze and vibrate the concrete being already attached on country rock, and cavity and gap will not be generated by so that concrete is contacted stronger, inside concrete with country rock.
Description
Technical field
The utility model relates to the first lining construction fields of tunnel surrounding gunite concrete more particularly to one kind to prevent from springing back
Single hose concrete injection device.
Background technique
During lining construction, high pressure pump truck is generallyd use at present and makees concrete ejection to tunnel surrounding surface
For first lining cutting, such as application No. is the pulsed concrete sprayers of CN201710467538.7 comprising pedestal, universal wheel,
Concrete storehouse, injection pipe and nozzle；It is fixedly connected with steering motor in the middle part of pedestal lower surface, is fixedly connected with and turns at the top of shaft
Disk, the upper surface of turntable are fixedly connected with bracket, and the lower surface of injection pipe is hinged with telescoping mechanism, and the lower surface of turntable is fixed to be connected
It is connected to concrete storehouse, the inside in concrete storehouse is fixedly connected with slush pump, and the upper surface of injection pipe is fixedly connected with injection motor,
Injection pipe is internally provided with crankshaft, and connecting rod is rotatably connected on crankshaft, and the other end of connecting rod is hinged with sliding panel, this is practical new
Type can simultaneously in the horizontal plane with spray angle is adjusted in vertical plane, adjustment speed is fast, flexible when substantially increasing use
Degree.
However use existing concrete injection device gunite concrete operation process in, the concrete of high speed ejection with enclose
It can be sprung back after rock and the concrete being already attached on country rock surface collision, part concrete springback is caused to splash down, be detached from
Country rock not only causes waste of material, but also influences construction speed.In order to reduce concrete springback loss, improve construction effect
Rate needs to develop a kind of technique device that can prevent rebound of shotcrete.
Utility model content
The purpose of this utility model is that splashing down, being detached from for concrete springback during concrete ejection in the prior art
The problem of country rock, provides a kind of single hose concrete injection device for preventing rebound, and then the rebound of concrete is greatly reduced
It splashes down, improves construction efficiency, reduce project cost.
For the attainment of one's purpose, technical solution provided by the utility model are as follows:
The utility model relates to a kind of single hose concrete injection device for preventing rebound, including pressure-air nozzle group
Part, concrete gun and air jet system；The pressure-air nozzle component includes end plate, air lance outer tube, air
Jet pipe inner tube and horn mouth, end plate are in cirque structure, and end plate center is equipped with concrete gun and is inserted into hole, if being additionally provided on end plate
The outer ring of dry air inlet, air lance outer tube one end and end plate connects, and the other end is connect with the lesser one end of horn mouth diameter, empty
One end of gas blowout pipe inner tube and the inner ring of end plate connect；The concrete gun pass through concrete gun be inserted into hole, and with end
Plate is fixed；The air jet system includes air inlet pipe identical with air inlet quantity, and the end of air inlet pipe is fixed on correspondence
Air inlet at.
Preferably, the horn mouth is in hollow round table shape, the size and air lance outer tube of the smaller one end of diameter
Size it is identical, and the lesser one end of horn mouth diameter is connect with air lance outer tube by welding.
Preferably, the air lance outer tube is identical with the length of air lance inner tube, air lance outer tube and air
The axle center of jet pipe inner tube is overlapped, and the gap between air lance outer tube and air lance inner tube is greater than the aperture of air inlet.
Preferably, the concrete gun is furnished with concrete pump.
Preferably, the air inlet pipe is fixed on the air inlet position of end plate by welding, in every air inlet pipe
It is connected with air pressure pump.
Preferably, several spray head hold-down supports are arranged in the edge that the end plate is located at concrete gun insertion hole, each
Tapped circular hole is equipped on spray head hold-down support, concrete gun is fixed by the fixing bolt through circular hole with spray head
Support locking connection.
Preferably, the quantity of the air inlet is four, and air inlet is the center of circle according to even circumferential using the center of end plate
Distribution.
Preferably, the quantity of the spray head hold-down support is four, and spray head hold-down support is using the center of end plate as the center of circle
It is distributed according to even circumferential.
Preferably, the air lance outer tube and air lance inner tube by welding with end plate connection.
Preferably, the jet port of the concrete gun stretches out horn mouth.
Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:
The utility model proposes pressure-air nozzle component can directly be nested on existing concrete gun, do not have to
Big transformation, simple structure low cost are carried out to original equipment, the pressure-air sprayed will not influence the sight of construction personnel；It is high
The pressure-air for pressing air nozzle component to spray can form a conical pressure-air cover in the periphery of gunite concrete,
It can not only stop concrete springback, also can smooth, squeeze and vibrate the concrete being already attached on country rock, make concrete
Contact with country rock is stronger, inside concrete will not generate cavity and gap；Relative to traditional construction of shotcrete
Technique, it is brighter and cleaner smooth to be formed by first lining cutting, and the construction quality and efficiency of first lining cutting can be improved；In injection coagulation
Before soil construction, the rubble and dregs being attached on country rock surface can be cleared up with pressure-air, improve the construction matter of first lining cutting
Amount.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the single hose concrete injection device that the utility model prevents rebound；
Fig. 2 is the side view of the attached single hose concrete injection device shown in FIG. 1 for preventing rebound；
Fig. 3 is the structure of pressure-air nozzle component and the schematic diagram of itself and the connection structure of air inlet pipe；
Fig. 4 is the side view of attached structure shown in Fig. 3；
Fig. 5 is bell-mouthed structural schematic diagram；
Fig. 6 is the structural schematic diagram of air lance outer tube and the combination of air lance inner tube；
Fig. 7 is the structural schematic diagram of end plate；
Fig. 8 is air inlet pipe and hold-down support scheme of installation；
Fig. 9 is the working principle diagram for the single hose concrete injection device that the utility model prevents rebound.
Illustrate: horn mouth 1, air lance outer tube 2, air lance inner tube 3, end plate 4, concrete gun insertion hole 5,
Air inlet 6, air inlet pipe 7, spray head hold-down support 8, air inlet pipe weld seam 9, hold-down support weld seam 10, air lance inner tube weld seam 11,
Air lance outer tube weld seam 12, horn mouth weld seam 13, fixing bolt 14, concrete gun 15, air pressure pump 16, concrete pump
17, concrete 18, country rock 19, pressure-air cover 20.
Specific embodiment
For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the embodiments, it is real below
Example is applied for illustrating the utility model, but is not intended to limit the scope of the present invention.
In conjunction with shown in attached drawing 1 and attached drawing 2, the utility model relates to it is a kind of prevent rebound single hose concrete ejection dress
It sets including pressure-air nozzle component, concrete gun 15 and air jet system.Wherein, the concrete gun 15 is furnished with
Concrete pump 17, the air jet system include more air inlet pipe 7, and in every air inlet pipe 7 with air pressure pump 16
It is connected.
In conjunction with shown in attached drawing 3 and 4, the pressure-air nozzle component includes end plate 4, air lance outer tube 2, air spray
Pipe inner tube 3 and horn mouth 1.In conjunction with shown in attached drawing 3~5, the shape of the horn mouth 1 is hollow round table structure, and horn mouth 1 is adopted
It is made of the materials such as galvanized steel plain sheet metal plate or engineering plastics or glass reinforced plastic.
In conjunction with shown in attached drawing 3,4,6, air lance outer tube 2 is identical with the length of air lance inner tube 3, air lance outer tube
2 and air lance inner tube 3 can be made of the materials such as steel pipe or engineering plastics, glass reinforced plastic, wall thickness will be according to being passed through
The pressure of pressure-air determines that the axle center of air lance outer tube 2 and air lance inner tube 3 is overlapped by calculating.Outside air lance
The diameter of pipe 2 is identical as the diameter of the smaller one end of 1 diameter of horn mouth, and wherein one end of air lance outer tube 2 passes through welding
Mode and the lesser one end of 1 diameter of horn mouth be welded to connect, the position that air lance outer tube 2 and horn mouth 1 weld forms loudspeaker
Mouth weld seam 13.
In conjunction with shown in attached drawing 3,4,7, the end plate 4 is in cirque structure, by steel plate or the production of engineering plastic flitch
At thickness will also be determined according to the pressure of the pressure-air born by calculating.It is inserted equipped with concrete gun in 4 center of end plate
Enter hole 5, diameter is slightly larger than the outer diameter of concrete gun 15, and is equal to the internal diameter of air lance inner tube 3；The outer diameter of end plate 4
Equal to the outer diameter of air lance outer tube 2.Four air inlets 6 are additionally provided on end plate 4, the diameter of four air inlets 6 is all the same, and waits
In or the spacing that is slightly less than between the inside of air lance outer tube 2 and 3 outside of air lance inner tube, four air inlets 6 are with end plate 4
Center be the center of circle be distributed according to even circumferential.Air lance outer tube 2 and air lance inner tube 3 respectively by welding with
End plate 4 connects, and forms air lance outer tube weld seam 12 and air lance inner tube weld seam 11, air spray in respective welding position
Pipe outer tube 2 and air lance inner tube 3 form air lance.
In conjunction with shown in attached drawing 3,4,8, four spray head hold-down supports 8, spray head hold-down support 8 are additionally provided on the end plate 4
It is arranged in the edge in concrete gun insertion hole 5, four spray head hold-down supports 8 are equal according to circumference by the center of circle of the center of end plate 4
Even distribution, and spray head hold-down support 8 is fixed with end plate 4 by welding, spray head hold-down support 8 and 4 link position of end plate
Form hold-down support weld seam 10.Spray head hold-down support 8 is rectangular steel plates, and spray head hold-down support 8 is equipped with tapped circular hole.
In conjunction with shown in attached drawing 1~4, the quantity of the air inlet pipe 7 is identical as the quantity of air inlet 6, the end of air inlet pipe 7
It is fixed at corresponding air inlet 6 by welding, and forms air inlet pipe weld seam 9 in welding position.The concrete
Spray gun 15 is inserted into concrete gun insertion hole 5, and is locked and connected by the spray head hold-down support 8 on fixing bolt 14 and end plate 4
It connects, horn mouth 1 is stretched out in the end of concrete gun 15.
The assembling process of the above-mentioned single hose concrete injection device for preventing rebound includes: first by air lance inner tube 3
It is mounted on end plate 4 by air lance inner tube weld seam 11；Then air lance outer tube 2 is passed through into air lance outer tube weld seam 12
It is mounted on end plate 4；Then horn mouth 1 is mounted on air lance outer tube 2 by horn mouth weld seam 13, is completed high pressure
Air nozzle component；Then concrete gun 15 is inserted into concrete gun insertion hole 5, and with fixing bolt 14 by concrete
Spray head hold-down support 8 on spray gun 15 and end plate 4 is locked；Then air inlet pipe 7 is welded on end plate 4 by air inlet pipe weld seam 9
At air inlet 6；Air inlet pipe 7 is connected with air pressure pump 16 finally, concrete gun 15 is connected with concrete pump 17.
In conjunction with shown in attached drawing 9, while concrete gun 15 sprays concrete 18, air jet system is moved synchronously, empty
Gas spraying device cooperates pressure-air nozzle component, and the pressure-air of ejection can form a circle in the periphery of gunite concrete
The pressure-air cover 20 of taper stops concrete 18 to spring back, while can also play to smooth, squeeze and vibrate to be already attached to and enclose
The effect of concrete on rock 19, makes that concrete 18 and the contact of country rock 19 be stronger, will not generate sky inside concrete 18
Chamber and gap.
The utility model is described in detail in conjunction with the embodiments above, but the content be only the utility model compared with
Good embodiment, should not be considered as limiting the scope of the present invention.It is made according to the scope of application of this utility model
All the changes and improvements etc. should all be still fallen within the patent covering scope of the utility model.
Claims (10)
1. a kind of single hose concrete injection device for preventing rebound, it is characterised in that: it includes pressure-air nozzle component, mixes
Solidifying soil spray gun and air jet system；The pressure-air nozzle component includes end plate, air lance outer tube, in air lance
Pipe and horn mouth, end plate are in cirque structure, and end plate center is equipped with concrete gun and is inserted into hole, are additionally provided with several air inlets on end plate
Mouthful, the outer ring of air lance outer tube one end and end plate connects, and the other end is connect with the lesser one end of horn mouth diameter, air lance
One end of inner tube and the inner ring of end plate connect；The concrete gun passes through concrete gun and is inserted into hole, and fixes with end plate；
The air jet system includes air inlet pipe identical with air inlet quantity, and the end of air inlet pipe is fixed on corresponding air inlet
Place.
2. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the loudspeaker
Mouthful be in hollow round table shape, the size of the smaller one end of diameter is identical as the size of air lance outer tube, and horn mouth diameter compared with
Small one end is connect with air lance outer tube by welding.
3. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the air
Jet pipe outer tube is identical with the length of air lance inner tube, and the axle center of air lance outer tube and air lance inner tube is overlapped, air spray
Gap between pipe outer tube and air lance inner tube is greater than the aperture of air inlet.
4. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the coagulation
Native spray gun is furnished with concrete pump.
5. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the air inlet
Pipe is fixed on the air inlet position of end plate by welding, is connected with air pressure pump in every air inlet pipe.
6. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the end plate
Several spray head hold-down supports are arranged in edge positioned at concrete gun insertion hole, are equipped on each spray head hold-down support with interior spiral shell
The circular hole of line, concrete gun are connected by the fixing bolt through circular hole with the locking of spray head hold-down support.
7. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the air inlet
The quantity of mouth is four, and air inlet is distributed using the center of end plate as the center of circle according to even circumferential.
8. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the spray head
The quantity of hold-down support is four, and spray head hold-down support is distributed using the center of end plate as the center of circle according to even circumferential.
9. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: the air
Jet pipe outer tube and air lance inner tube by welding with end plate connection.
10. the single hose concrete injection device according to claim 1 for preventing rebound, it is characterised in that: described is mixed
The jet port of solidifying soil spray gun stretches out horn mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920104679.7U CN209510338U (en) | 2019-01-22 | 2019-01-22 | A kind of single hose concrete injection device preventing rebound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920104679.7U CN209510338U (en) | 2019-01-22 | 2019-01-22 | A kind of single hose concrete injection device preventing rebound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510338U true CN209510338U (en) | 2019-10-18 |
Family
ID=68201893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920104679.7U Expired - Fee Related CN209510338U (en) | 2019-01-22 | 2019-01-22 | A kind of single hose concrete injection device preventing rebound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209510338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595013A (en) * | 2019-01-22 | 2019-04-09 | 浙江科技学院 | Prevent the single hose concrete injection device of rebound |
| CN110553935A (en) * | 2019-10-16 | 2019-12-10 | 浙江科技学院 | dynamic punching joint cutting method |
-
2019
- 2019-01-22 CN CN201920104679.7U patent/CN209510338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595013A (en) * | 2019-01-22 | 2019-04-09 | 浙江科技学院 | Prevent the single hose concrete injection device of rebound |
| CN109595013B (en) * | 2019-01-22 | 2024-07-23 | 浙江科技学院 | Single-tube concrete spraying device capable of preventing rebound |
| CN110553935A (en) * | 2019-10-16 | 2019-12-10 | 浙江科技学院 | dynamic punching joint cutting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |