CN205423870U - Concrete wet blasting machine with adjustable pressure adjustment structure and pressure - Google Patents
Concrete wet blasting machine with adjustable pressure adjustment structure and pressure Download PDFInfo
- Publication number
- CN205423870U CN205423870U CN201620107439.9U CN201620107439U CN205423870U CN 205423870 U CN205423870 U CN 205423870U CN 201620107439 U CN201620107439 U CN 201620107439U CN 205423870 U CN205423870 U CN 205423870U
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- Prior art keywords
- pressure
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- inner sleeve
- shower nozzle
- extrusion ball
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Lining And Supports For Tunnels (AREA)
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Abstract
The utility model discloses a pressure adjustment structure, including interior sleeve pipe, outer tube and blast pipe, the blast pipe passes from interior sleeve pipe, a plurality of through -holes have been offered on interior sheathed tube upper portion, the extrusion ball has all been placed by each through -hole department, the sphere diameter of extrusion ball is greater than the aperture of through -hole, the peripheral border in interior sheathed tube lower part is provided with outer spiral section, the lower part inboard of outer tube is provided with the inside spin section with outer spiral section looks adaptation, the upper portion of outer tube is the horn mouth form, in unscrewing, during outer spiral section, outer tube extrusion ball, in screwing up, during outer spiral section, the outer tube reduces the extrusion to the extrusion ball gradually. The utility model also discloses an adjustable concrete wet blasting of a pressure machine, including shower nozzle mechanism, shower nozzle mechanism includes that the shower nozzle reaches as above the pressure adjustment structure, the supply -air outlet has been seted up to shower nozzle one side, the supply -air outlet is linked together with above -mentioned blast pipe. The utility model discloses can conveniently adjust the size of spraying pressure according to actually spraying needs, improve work efficiency and sprayed the effect.
Description
Technical field
This utility model belongs to concrete ejection technical field, particularly relates to a kind of pressure regulating mechanism and adjustable-pressure concrete spraying machine.
Background technology
There is due to wet shot method gunite concrete the advantages such as low, the good combination property of dust and be widely used in Geotechnical Engineering, railway tunnel and repairing and reinforcement engineering, so-called wet shot, after referring to by delivery pump, the concrete material mixed is delivered to spray gun, accelerator is added, then the construction method of gunite concrete under Action of Wind pressure in spray gun.During concrete ejection, generally there is the problem that rebound degree is high, not only result in the waste of concrete material, dust from flying, construction environment also can be made to deteriorate, affect the health of workmen.
The reason causing rebound degree high mainly has: concrete exists mix inequality in course of conveying, stirs insufficient phenomenon；Existing shower nozzle mostly is elongated cast, concrete mix with accelerator thoroughly and material to dissipate face too small；Blast pressure is unstable.
Patent ZL201420080723.2 discloses a kind of concrete spraying reducing Pear-Shaped attachment means, it includes spray gun, wind-pressure tube, concrete conveying pipe, equipped with a reducing calabash body between concrete conveying pipe and spray gun rear end, reducing calabash body one end adpting flange is fixing with spray gun rear end to be connected, and reducing calabash body other end adpting flange is fixing with concrete conveying pipe to be connected.This device is by changing the course of conveying of concrete reduction rebound degree.
Patent ZL201320824006.1 discloses a kind of double accelerator entrance wet-spraying machine shower nozzles reducing spray concrete rebound degree, including head body and the conveying flexible pipe that is connected with its afterbody, head body is hollow tubular structure, conveying flexible pipe is provided with the material mixing unit of rugby shape, its minor axis length is more than the diameter of conveying flexible pipe, the front end of material mixing unit is provided with accelerator adding tube, and the angle between the axis and the axis of head body of accelerator adding tube is acute angle.This wet-spraying machine reduces rebound degree by changing nozzle structure.
But, market does not exist the structure well changing rebound degree by controlling blast, existing wet-spraying machine shower nozzle blast can only regulate blast by air compressor, and process is loaded down with trivial details, wastes time and energy.
As can be seen here, prior art awaits further improving.
Utility model content
This utility model is the weak point avoiding above-mentioned prior art to exist, provide a kind of pressure regulating mechanism and adjustable-pressure concrete spraying machine, this pressure regulating mechanism can be conveniently adjusted the blast at wet-spraying machine shower nozzle according to actual needs, reduces the rebound degree during concrete ejection.
The technical scheme that this utility model is used is:
A kind of pressure regulating mechanism, including inner sleeve, trocar sheath and ajutage, ajutage passes from inner sleeve, the top of inner sleeve offers multiple through hole, each through hole is all placed with extrusion ball, the sphere diameter of extrusion ball is more than the aperture of through hole, the lower periphery border of inner sleeve is provided with external spiral section, the lower inside of trocar sheath is provided with the internal coiling section suitable with external spiral section, the top of trocar sheath is bell mouth shape, in unscrewing, during external spiral section, trocar sheath relative to inner sleeve to place extrusion ball side shifting, and extrude extrusion ball, in tightening, during external spiral section, trocar sheath relative to inner sleeve to away from extrusion ball side shifting, and it is gradually reduced the extruding to extrusion ball.
The bottom of described inner sleeve is connected with a chassis, and chassis is circular, and the inner side on chassis is provided with female thread, and ajutage is provided with the external screw thread suitable with female thread.
The length of described external spiral section is more than the length of internal coiling section.
Described extrusion ball is steel ball.
The invention also discloses a kind of adjustable-pressure concrete spraying machine, including shower head mechanism, shower head mechanism includes shower nozzle and pressure regulating mechanism as above, and shower nozzle side offers air outlet, and air outlet is connected with above-mentioned ajutage.
Described ajutage includes Upstream section and tract, and Upstream section passes from above-mentioned inner sleeve, and tract is connected with air outlet, and upstream and downstream section is connected by connecting tube, and connecting tube is provided with Pressure gauge.
Described Upstream section and tract are rubber hose.
Described connecting tube is steel pipe.
The two ends of described connecting tube are connected with upstream and downstream section by ring flange respectively.
Described air outlet is oblique hole, and one end of shower nozzle offers concrete feeding mouth, and the other end of shower nozzle offers mixture outlet.
Owing to have employed technique scheme, having the beneficial effect that acquired by this utility model
1, this utility model controls the trocar sheath extruding degree to steel ball by the inside and outside spiral section of degree of tightness, thus the size of blast in controlling ajutage, and realize the real-time monitoring to air-supply overpressure by Pressure gauge, can need to regulate the blast at wet-spraying machine shower nozzle according to real work easily, reduce rebound degree, improve work efficiency and jeting effect.
2, this utility model simple in construction, cost of manufacture is relatively low, convenient for installation and maintenance, is suitable to popularization and application on a large scale.
Accompanying drawing explanation
Fig. 1 is the structural representation of inner sleeve in this utility model.
Fig. 2 is the assembling schematic diagram of inside and outside sleeve pipe in this utility model.
Fig. 3 is the structural representation of shower head mechanism in this utility model.
Wherein,
1, concrete feeding mouth 2, air outlet 3, mixture outlet 4, ajutage 41, Upstream section 42, tract 5, ring flange 6, bolt 7, Pressure gauge 8, joint steel pipe 9, pressure regulating mechanism 901, through hole 902, inner sleeve 903, external spiral section 904, chassis 905, steel ball 906, trocar sheath
Detailed description of the invention
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but this utility model is not limited to these embodiments.
As depicted in figs. 1 and 2, a kind of pressure regulating mechanism, including inner sleeve 902, trocar sheath 906 and ajutage 4, ajutage 4 is high-pressure air hose, ajutage 4 passes from inner sleeve 902, and the bottom of inner sleeve 902 is connected with a chassis 904, and chassis 904 is in circular, the inner side on chassis 904 is provided with female thread, and ajutage 4 is provided with the external screw thread suitable with female thread；The top of inner sleeve 902 offers multiple through hole 901, steel ball 905 all it is placed with at each through hole 901, the sphere diameter of steel ball 905 is more than the aperture of through hole 901, the lower periphery border of inner sleeve 902 is provided with external spiral section 903, the lower inside of trocar sheath 906 is provided with the internal coiling section suitable with external spiral section 903, the length of described external spiral section 903 is more than the length of internal coiling section, the top of trocar sheath 906 is bell mouth shape, in unscrewing, during external spiral section, trocar sheath 906 relative to inner sleeve 902 to place steel ball 905 side shifting, and extrude steel ball 905, in tightening, during external spiral section, trocar sheath 906 relative to inner sleeve 902 to away from steel ball 905 side shifting, and it is gradually reduced the extruding to steel ball 905.
As shown in Figure 1 to Figure 3, the invention also discloses a kind of adjustable-pressure concrete spraying machine, including shower head mechanism, shower head mechanism includes shower nozzle and pressure regulating mechanism 9 as above, shower nozzle side offers air outlet 2, and air outlet 2 is oblique hole, and air outlet 2 is connected with above-mentioned ajutage 4, one end of shower nozzle offers concrete feeding mouth 1, and the other end of shower nozzle offers mixture outlet 3；Described ajutage 4 includes Upstream section 41 and tract 42, Upstream section 41 and tract 42 are rubber hose, Upstream section 41 passes from above-mentioned inner sleeve 902, tract 42 is connected with air outlet 2, upstream and downstream section is connected by connecting tube 8, connecting tube 8 is steel pipe, and connecting tube 8 is provided with Pressure gauge 7, and the two ends of described connecting tube 8 are connected with upstream and downstream section by ring flange 5 and bolt 6 respectively.
This utility model controls the trocar sheath 906 extruding degree to steel ball 905 by the inside and outside spiral section of degree of tightness, thus control the size of high-pressure air hose pressure, the real-time monitoring to high-pressure air hose pressure is realized by Pressure gauge 7, at the concrete ejection initial stage, jetting thickness is relatively thin, tightens inside and outside spiral section, trocar sheath 906 relative to inner sleeve 902 to the side shifting being located remote from steel ball 905, thus it is gradually reduced the extruding to steel ball 905, make the pressure in high-pressure air hose reduce；When spray-up reaches certain thickness, gradually unscrew above-mentioned inside and outside spiral section, trocar sheath 906 relative to inner sleeve 902 to place steel ball 905 a side shifting, trocar sheath 906 becomes big to the extruding of steel ball 905, steel ball 905 becomes big to the extruding of high-pressure air hose, pressure in high-pressure air hose becomes big, realizes the change to wet-spraying machine shower nozzle blast by said process.
The part do not addressed in this utility model uses or uses for reference prior art and can realize.
Specific embodiment described herein is only to spirit of the present utility model example explanation.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. a pressure regulating mechanism, it is characterized in that, including inner sleeve, trocar sheath and ajutage, ajutage passes from inner sleeve, the top of inner sleeve offers multiple through hole, each through hole is all placed with extrusion ball, the sphere diameter of extrusion ball is more than the aperture of through hole, the lower periphery border of inner sleeve is provided with external spiral section, the lower inside of trocar sheath is provided with the internal coiling section suitable with external spiral section, the top of trocar sheath is bell mouth shape, in unscrewing, during external spiral section, trocar sheath relative to inner sleeve to place extrusion ball side shifting, and extrude extrusion ball, in tightening, during external spiral section, trocar sheath relative to inner sleeve to away from extrusion ball side shifting, and it is gradually reduced the extruding to extrusion ball.
A kind of pressure regulating mechanism the most according to claim 1, it is characterised in that the bottom of described inner sleeve is connected with a chassis, and chassis is circular, and the inner side on chassis is provided with female thread, and ajutage is provided with the external screw thread suitable with female thread.
A kind of pressure regulating mechanism the most according to claim 1, it is characterised in that the length of described external spiral section is more than the length of internal coiling section.
A kind of pressure regulating mechanism the most according to claim 1, it is characterised in that described extrusion ball is steel ball.
5. an adjustable-pressure concrete spraying machine, including shower head mechanism, it is characterised in that described shower head mechanism includes shower nozzle and the pressure regulating mechanism as described in Claims 1-4 any one claim, shower nozzle side offers air outlet, and air outlet is connected with above-mentioned ajutage.
A kind of adjustable-pressure concrete spraying machine the most according to claim 5, it is characterised in that described ajutage includes Upstream section and tract, Upstream section passes from above-mentioned inner sleeve, tract is connected with air outlet, and upstream and downstream section is connected by connecting tube, and connecting tube is provided with Pressure gauge.
A kind of adjustable-pressure concrete spraying machine the most according to claim 6, it is characterised in that described Upstream section and tract are rubber hose.
A kind of adjustable-pressure concrete spraying machine the most according to claim 6, it is characterised in that described connecting tube is steel pipe.
A kind of adjustable-pressure concrete spraying machine the most according to claim 8, it is characterised in that the two ends of described connecting tube are connected with upstream and downstream section by ring flange respectively.
A kind of adjustable-pressure concrete spraying machine the most according to claim 5, it is characterised in that described air outlet is oblique hole, and one end of shower nozzle offers concrete feeding mouth, and the other end of shower nozzle offers mixture outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107439.9U CN205423870U (en) | 2016-02-03 | 2016-02-03 | Concrete wet blasting machine with adjustable pressure adjustment structure and pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107439.9U CN205423870U (en) | 2016-02-03 | 2016-02-03 | Concrete wet blasting machine with adjustable pressure adjustment structure and pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423870U true CN205423870U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620107439.9U Expired - Fee Related CN205423870U (en) | 2016-02-03 | 2016-02-03 | Concrete wet blasting machine with adjustable pressure adjustment structure and pressure |
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| CN (1) | CN205423870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546136A (en) * | 2016-02-03 | 2016-05-04 | 山东科技大学 | Pressure adjusting structure and pressure-adjustable concrete wet spraying machine |
-
2016
- 2016-02-03 CN CN201620107439.9U patent/CN205423870U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546136A (en) * | 2016-02-03 | 2016-05-04 | 山东科技大学 | Pressure adjusting structure and pressure-adjustable concrete wet spraying machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |