CN203603933U - Spray head capable of reducing sprayed concrete rebound rate - Google Patents
Spray head capable of reducing sprayed concrete rebound rate Download PDFInfo
- Publication number
- CN203603933U CN203603933U CN201320824024.XU CN201320824024U CN203603933U CN 203603933 U CN203603933 U CN 203603933U CN 201320824024 U CN201320824024 U CN 201320824024U CN 203603933 U CN203603933 U CN 203603933U
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- head body
- spray head
- spray
- diameter
- shower nozzle
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Abstract
The utility model discloses a spray head capable of reducing the sprayed concrete rebound rate. The spray head comprises a spray head body (1) and a material conveying hose (2) connected with the tail portion of the spray head body (1). The spray head body (1) is of a hollow tubular structure, the material conveying hose (2) is provided with a material mixing part (3) in the shape of a football, and accelerating agent addition tubes (4) are arranged at the front end of the material mixing part (3); the spray head body (1) is a cylinder with the diameter which gradually increases from the tail portion to the front end, the tail portion of the spray head body (1) is matched with the material conveying hose (2) in diameter, and a spray head cover (5) is fixed at the front end of the spray head body (1), is of a circular tubular structure matched with the cross section of the headmost end of the spray head body (1) in diameter and is provided with spray holes (6). The spray head capable of reducing the sprayed concrete rebound rate has the advantages of being resistant to blocking, little in rebound and sufficient in mixing.
Description
Technical field
The utility model relates to a kind of mine apparatus, is specifically related to a kind of shower nozzle of the reduction spray concrete rebound degree spraying for concrete.
Background technology
Conventional wet concrete-spraying machine is to utilize compressed air, the concrete material mixing by certain level hydrous water gray scale, the nozzle by carrier pipe through spraying machine, ejects with very high speed, thereby being subject to form concrete supporting on spray plane, is the capital equipment in current construction of shotcrete operation.Spray concrete shower nozzle is as concrete terminal output equipment, must there is gas defence leakproof, the uniform fundamental characteristics of high-voltage-resistant anti-corrosion spray concrete, and shower nozzle mostly in the market is elongated cast, concrete mixes not thorough with accelerating admixture, and it is too small that ejection material is dispersed face, causes rebound degree large, spray concrete face is easily caved in.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of anti-blocking, resilience is few, make mixing of materials reduce fully the shower nozzle of spray concrete rebound degree.
A kind of shower nozzle that reduces spray concrete rebound degree, comprise head body and the conveying flexible pipe being connected with its afterbody, described head body is hollow tubular structure, is provided with the mixing of materials portion of rugby shape on described conveying flexible pipe, and its minor axis length is greater than the diameter of described conveying flexible pipe; Front end in described mixing of materials portion is provided with accelerating admixture adding tube, and the angle between the axis of described accelerating admixture adding tube and the axis of described head body is acute angle; Described head body is the cylinder increasing gradually from afterbody to point diameter, the diameter of the diameter of described head body afterbody and described conveying flexible pipe adapts, front end in described head body is fixed with nozzle cap, described nozzle cap is the circular platy structure adapting with the cross-sectional diameter foremost of described head body, on described nozzle cap, is provided with spray orifice.
The shower nozzle of reduction spray concrete rebound degree described in the utility model, the middle part of wherein said nozzle cap is without spray orifice district, its area accounts for 50～70% of whole described nozzle cap area, being evenly provided with multiple spray orifices except described on without the other parts of the nozzle cap spray orifice district.
The shower nozzle of reduction spray concrete rebound degree described in the utility model, wherein said injection diameter is 1cm.
The shower nozzle of reduction spray concrete rebound degree described in the utility model, wherein said accelerating admixture adding tube is upper and lower two.
The shower nozzle of reduction spray concrete rebound degree described in the utility model, the angle between the axis of wherein said accelerating admixture adding tube and the axis of described shower nozzle is 30 degree.
The shower nozzle difference from prior art that the utility model reduces spray concrete rebound degree is:
The shower nozzle of reduction spray concrete rebound degree described in the utility model expands the internal diameter of the conveying flexible pipe near shower nozzle afterbody, makes it to be spheroid, and accelerating admixture adding tube is connected to the front end of spheroid, and the axis of accelerating admixture adding tube and the axis of shower nozzle are acute angle; This design is in order to increase blending space, fully mix concrete and accelerating admixture, and the axis of accelerating admixture adding tube and shower nozzle axis be designed to after acute angle, and accelerating admixture is more easily by swiftly flowing concrete fluid inhalation spray head pipeline, and resilience is few; Shower nozzle described in the utility model has multiple spray orifices, makes the concrete of ejection more even; Shower nozzle described in the utility model extends out the nozzle cap of type, and the outside of spray nozzle in rounded face, middle part is without spray orifice district part, there is no jet orifice structure, make concrete be subject to spray plane to have the loose shape of certain angle to spray with tunnel under spray regime at a high speed, reduce to spray concrete rebound degree, the two reduces the dust content of operating space in conjunction with reducing concrete springback amount; The described area without spray orifice district part accounts for 50～70% of whole nozzle cap area, and ratio is shared too large, easily blocks pipeline, and ratio is too little, and spray concrete speed is little, does not reach technological requirement.
Below in conjunction with accompanying drawing, the shower nozzle of reduction spray concrete rebound degree of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the shower nozzle of reduction spray concrete rebound degree described in the utility model;
Fig. 2 is the structural representation of the head body of wet concrete-spraying machine shower nozzle described in the utility model.
The specific embodiment
As depicted in figs. 1 and 2, the shower nozzle of reduction spray concrete rebound degree described in the utility model, comprise head body 1 and the conveying flexible pipe 2 being connected with its afterbody, described head body 1 is hollow tubular structure, the mixing of materials portion 3 that is provided with rugby shape on described conveying flexible pipe 2, its minor axis length is greater than the diameter of described conveying flexible pipe 2; Front end in described mixing of materials portion 3 is provided with accelerating admixture adding tube 4, and the angle between the axis of described accelerating admixture adding tube 4 and the axis of described head body 1 is acute angle; The cylinder of described head body 1 for increasing gradually from afterbody to point diameter, the diameter of described head body 1 afterbody and the diameter of described conveying flexible pipe 2 adapt, be fixed with nozzle cap 5 at the front end of described head body 1, described nozzle cap 5 is the circular configuration adapting with the cross section foremost of described head body 1, on described nozzle cap 5, is provided with spray orifice 6.
The middle part of described nozzle cap 5 is without spray orifice district 7, and its area accounts for 50% of whole described nozzle cap 5 areas, being evenly provided with multiple spray orifices 6 in the described other parts without the nozzle cap 5 spray orifice district 7.
As depicted in figs. 1 and 2, the shower nozzle of reduction spray concrete rebound degree described in the utility model, comprise head body 1 and the conveying flexible pipe 2 being connected with its afterbody, described head body 1 is hollow tubular structure, the mixing of materials portion 3 that is provided with rugby shape on described conveying flexible pipe 2, its minor axis length is greater than the diameter of described conveying flexible pipe 2; Front end in described mixing of materials portion 3 is provided with accelerating admixture adding tube 4, and the angle between the axis of described accelerating admixture adding tube 4 and the axis of described head body 1 is acute angle; The cylinder of described head body 1 for increasing gradually from afterbody to point diameter, the diameter of described head body 1 afterbody and the diameter of described conveying flexible pipe 2 adapt, be fixed with nozzle cap 5 at the front end of described head body 1, described nozzle cap 5 is the circular configuration adapting with the cross section foremost of described head body 1, on described nozzle cap 5, is provided with spray orifice 6.
The middle part of described nozzle cap 5 is without spray orifice district 7, and its area accounts for 60% of whole described nozzle cap 5 areas, being evenly provided with multiple spray orifices 6 in the described other parts without the nozzle cap 5 spray orifice district 7; Described spray orifice 6 diameters are 1cm, and described accelerating admixture adding tube 4 is upper and lower two, and the angle between the axis of described accelerating admixture adding tube 4 and the axis of described shower nozzle 1 is 30 degree, and now mixed effect is best.
Shower nozzle described in the utility model can make concrete better spread out, and is ejected into more equably on metope, can reduce bounce-back rate, also can hold better the thickness that spray concrete forms on the inwall of tunnel.
The mixing of materials portion 3 of rugby shape described in the utility model has expanded the blending space of material, fully mix concrete and accelerating admixture, and after the axis of accelerating admixture adding tube 4 and shower nozzle 1 axis designs acutangulate, accelerating admixture is more easily by swiftly flowing concrete fluid inhalation spray head pipeline.
Be with the difference of embodiment 2: the described area without spray orifice district part 7 accounts for 70% of whole nozzle cap 5 areas.
Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (5)
1. one kind is reduced the shower nozzle of spray concrete rebound degree, it is characterized in that: comprise head body (1) and the conveying flexible pipe (2) being connected with its afterbody, described head body (1) is hollow tubular structure, the mixing of materials portion (3) that is provided with rugby shape on described conveying flexible pipe (2), its minor axis length is greater than the diameter of described conveying flexible pipe (2); Be provided with accelerating admixture adding tube (4) at the front end of described mixing of materials portion (3), the angle between the axis of described accelerating admixture adding tube (4) and the axis of described head body (1) is acute angle; The cylinder of described head body (1) for increasing gradually from afterbody to point diameter, the diameter of described head body (1) afterbody and the diameter of described conveying flexible pipe (2) adapt, be fixed with nozzle cap (5) at the front end of described head body (1), described nozzle cap (5) is the circular platy structure adapting with the cross-sectional diameter foremost of described head body (1), is provided with spray orifice (6) on described nozzle cap (5).
2. the shower nozzle of reduction spray concrete rebound degree according to claim 1, it is characterized in that: the middle part of described nozzle cap (5) is without spray orifice district (7), its area accounts for 50～70% of whole described nozzle cap (5) area, being evenly provided with multiple spray orifices (6) except described on without the nozzle cap (5) spray orifice district (7).
3. the shower nozzle of reduction spray concrete rebound degree according to claim 1 and 2, is characterized in that: described spray orifice (6) diameter is 1cm.
4. the shower nozzle of reduction spray concrete rebound degree according to claim 3, is characterized in that: described accelerating admixture adding tube (4) is upper and lower two.
5. the shower nozzle of reduction spray concrete rebound degree according to claim 4, is characterized in that: the angle between the axis of described accelerating admixture adding tube (4) and the axis of described shower nozzle (1) is 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824024.XU CN203603933U (en) | 2013-12-13 | 2013-12-13 | Spray head capable of reducing sprayed concrete rebound rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320824024.XU CN203603933U (en) | 2013-12-13 | 2013-12-13 | Spray head capable of reducing sprayed concrete rebound rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603933U true CN203603933U (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320824024.XU Expired - Fee Related CN203603933U (en) | 2013-12-13 | 2013-12-13 | Spray head capable of reducing sprayed concrete rebound rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603933U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481120A (en) * | 2014-12-16 | 2015-04-01 | 平顶山鸿顺源工贸有限公司 | Filling and guniting support frame for dry powder accelerating agent |
| CN105756688A (en) * | 2016-04-13 | 2016-07-13 | 中铁十六局集团北京轨道交通工程建设有限公司 | Sprayer device and construction method for improving concrete spraying quality |
-
2013
- 2013-12-13 CN CN201320824024.XU patent/CN203603933U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481120A (en) * | 2014-12-16 | 2015-04-01 | 平顶山鸿顺源工贸有限公司 | Filling and guniting support frame for dry powder accelerating agent |
| CN105756688A (en) * | 2016-04-13 | 2016-07-13 | 中铁十六局集团北京轨道交通工程建设有限公司 | Sprayer device and construction method for improving concrete spraying quality |
| CN105756688B (en) * | 2016-04-13 | 2018-08-21 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of ejecting device and construction method improving concrete ejection quality |
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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: 20140521 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |