CN202926343U - Injection nozzle for injecting concrete - Google Patents
Injection nozzle for injecting concrete Download PDFInfo
- Publication number
- CN202926343U CN202926343U CN 201220673299 CN201220673299U CN202926343U CN 202926343 U CN202926343 U CN 202926343U CN 201220673299 CN201220673299 CN 201220673299 CN 201220673299 U CN201220673299 U CN 201220673299U CN 202926343 U CN202926343 U CN 202926343U
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- nozzle
- straight tube
- tube structure
- nozzle body
- barrel structure
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Abstract
The utility model discloses an injection nozzle for injecting concrete. The injection nozzle for injecting concrete comprises an injection nozzle of which the inside is hollow, wherein the injection nozzle consists of a nozzle body and a spiral device arranged inside the nozzle body; the two ends of the spiral device are connected with the two end faces of the nozzle body respectively; the nozzle body is partitioned into a straight barrel structure and a conical barrel structure connected with the straight barrel structure; the outer wall of the straight barrel structure is provided with a hole group which is communicated with the inside of the straight barrel structure; and the diameter of one end, which is far away from the straight barrel structure, of the conical barrel structure is larger than that of one end, which is close to the straight barrel structure. Due to the adoption of the nozzle, full and uniform mixing of a concrete admixture and injected concrete can be realized; and meanwhile, the speed of a mixture at a nozzle outlet is lowered, the injection area is increased, concrete is hardened rapidly and uniformly, the spring-back amount is reduced, the quality of a support surface is enhanced, and the use cost is reduced.
Description
Technical field
The utility model relates to a kind of nozzle, relates in particular to a kind of injection nozzle of sprayed mortar, belongs to the engineering support field.
Background technology
Sprayed mortar is by spraying machinery, utilizes compressed air or other power, with the material that mixes and stirs according to a certain ratio, by nozzle ejection to being subjected on spray plane, a kind of concrete of forming of setting and harden rapidly.Sprayed mortar need to add Admixture during by nozzle, the effect of Admixture is reduce the consumption of water and make the rapid setting and harden of concrete, reduce rebound loss, prevent that sprayed mortar from coming off because gravity causes, the conformability that uses in humidity or water-bearing stratum in order to improve sprayed mortar should suitably strengthen jet thickness and shorten interval time between jetted layers.Affect the principal element of resilience except the physics of mixture itself, chemical characteristic, during also with sprayed mortar and Admixture mix uniformity and nozzle ejection, the speed in exit is relevant.The nozzle one that uses at present is the very not full and uniform of mix, the 2nd, and the too fast undue concentration of muzzle velocity.Therefore can produce the rebound of shotcrete amount large, rate of hardening is unbalanced, and then affects the performance of sprayed mortar, has caused the waste of material, has increased construction cost, is unfavorable for the control of support engineering quality.
Content of the present utility model
Order of the present utility model is to overcome the shortcoming and defect of above-mentioned prior art, a kind of sprayed mortar injection nozzle is provided, this nozzle can realize that solidifying Admixture mixes with the full and uniform of sprayed mortar, reduce simultaneously mixture in the speed of nozzle exit, increased projected area, guaranteed that hardening of concrete is quick, evenly, reduce springback capacity, improved the quality of a mask, reduced use cost.
The purpose of this utility model is achieved through the following technical solutions: a kind of injection nozzle of sprayed mortar, the nozzle that comprises inner hollow, described nozzle is made of nozzle body and the helical structure that is arranged on nozzle body inside, the two ends of described helical structure are connected with the both ends of the surface of nozzle body respectively, the cone barrel structure that nozzle body is divided into the straight tube structure and is connected with the straight tube structure, be provided with the hole group that communicates with the straight tube inside configuration on the outer wall of straight tube structure, the cone barrel structure away from an end diameter of straight tube structure greater than the diameter near straight tube structure one end.
Further, described helical structure is the screw of three same structures, and the cross section of screw is trapezoidal, and screw protrudes and is arranged on the inwall of nozzle body, and is distributed in the overall length direction of nozzle inner walls.The concrete quantity of screw is set according to actual user demand, and conventional design is three screws.
Further, described cone barrel structure is near the measure-alike of an end size of straight tube structure and straight tube structure and be smoothly connected.The tapering of cone barrel structure uses design according to reality.
Further, several are arranged on the structural through hole of arranging ringwise of straight tube described Kong Zuwei, and the distance between adjacent through-holes is identical.The quantity of through hole is used by the scene and is designed.
Further, the angle between the center line of described through hole and the axis of nozzle body is less than 90 °, and the center line of through hole deflection straight tube structure one side.The angle of angle designs according to the parameter of actual ejection, satisfies and uses.
In sum, the beneficial effects of the utility model are: this nozzle can realize that solidifying Admixture mixes with the full and uniform of sprayed mortar, reduce simultaneously mixture in the speed of nozzle exit, increased projected area, guaranteed that hardening of concrete is quick, evenly, reduced springback capacity, improve the quality of a mask, reduced use cost.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of nozzle body;
Fig. 3 is the structural representation of helical structure;
Fig. 4 is the sectional view of screw.
Mark and corresponding component title in accompanying drawing: 1-nozzle; 2-cone barrel structure; 3-screw; 4-straight tube structure; 5-hole group; 6-nozzle body.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment:
As shown in Figure 1, a kind of injection nozzle of sprayed mortar, the nozzle 1 that comprises inner hollow, described nozzle 1 is made of nozzle body 6 and the helical structure that is arranged on nozzle body 6 inside, the two ends of described helical structure are connected with the both ends of the surface of nozzle body 6 respectively, the cone barrel structure 2 that nozzle body 6 is divided into straight tube structure 4 and is connected with straight tube structure 4, be provided with the hole group 5 that communicates with straight tube structure 4 inside on the outer wall of straight tube structure 4, cone barrel structure 2 away from an end diameter of straight tube structure 4 greater than the diameter near straight tube structure 4 one ends.Nozzle body 6 first halfs are straight barrel type, and latter half is for being trumpet-shaped taper.
As shown in Figure 3, Figure 4, described helical structure is the screw 3 of three same structures, and the cross section of screw 3 is trapezoidal, and screw 3 protrudes and is arranged on the inwall of nozzle body 6, and is distributed in the overall length direction of nozzle inner walls.Screw 3 can be that directly the mode by turning processes at the inwall of nozzle body 6, can be also to adopt the screw 3 of combination to be arranged on the inwall of nozzle body 6, and screw 3 so long as protrude on the inwall that is arranged on nozzle body 6 gets final product.Screw 3 in helical structure is crooked along inwall, is mutually between three to be arranged in parallel.
Described cone barrel structure 2 is near the measure-alike of an end size of straight tube structures 4 and straight tube structure 4 and be smoothly connected.The inwall of cone barrel structure 2 is smoothly connected with outer wall is corresponding mutually with the inwall of outer wall and straight tube structure 4, and resistance is less when carrying out sprayed mortar.
As shown in Figure 2, described hole group 5 is arranged on the through hole of arranging ringwise on straight tube structure 4 for several, and the distance between adjacent through-holes is identical.
Angle between the axis of the center line of described through hole and nozzle body 6 is less than 90 °, and the center line of through hole 4 deflection straight tube structure 4 one sides.Angle between the axis of through hole and nozzle body 6 is less than 90 °, makes concretely to enter conveniently, and less to the inwall impact force of nozzle body 6, through hole is sideling towards cone barrel structure 2.In Fig. 1, indicate angle with α, the angle of α is less than 90 °.
operating principle be for: enter nozzle from playpipe under the effect of the sprayed mortar that stirs at gases at high pressure, Admixture enters nozzle by one group of equally distributed through hole on nozzle body, in the full section of nozzle, owing to being provided with one group of screw, make sprayed mortar be repeatedly rotation in nozzle, thereby realize full and uniform the mixing of sprayed mortar and Admixture, can guarantee that like this concrete hardens rapidly and uniformly, because nozzle is arranged to cone-shaped, its cross section increases gradually, therefore mixture speed in nozzle reduces gradually, reduced so on the one hand flow velocity, extend incorporation time, when being ejected into jet face, bounce reduces, reduced concrete springback capacity, because outlet is horn-like, projected area increases on the one hand, and average jet thickness reduces, and Adhesion enhancement so also can reduce resilience.Improve like this utilization rate of material, reduced cost.
Take aforesaid way, just can realize preferably the utility model.
Claims (5)
1. the injection nozzle of a sprayed mortar, the nozzle (1) that comprises inner hollow, described nozzle (1) is by nozzle body (6) and be arranged on the inner helical structure formation of nozzle body (6), it is characterized in that: the two ends of described helical structure are connected with the both ends of the surface of nozzle body (6) respectively, the cone barrel structure (2) that nozzle body (6) is divided into straight tube structure (4) and is connected with straight tube structure (4), be provided with the hole group (5) that communicates with straight tube structure (4) inside on the outer wall of straight tube structure (4), cone barrel structure (2) away from an end diameter of straight tube structure (4) greater than the diameter near straight tube structure (4) one ends.
2. the injection nozzle of a kind of sprayed mortar according to claim 1, it is characterized in that: described helical structure is the screw (3) of three same structures, and the cross section of screw (3) is trapezoidal, screw (3) protrudes and is arranged on the inwall of nozzle body (6), and is distributed in the overall length direction of nozzle inner walls.
3. the injection nozzle of a kind of sprayed mortar according to claim 1 is characterized in that: described cone barrel structure (2) is near the measure-alike of an end size of straight tube structure (4) and straight tube structure (4) and be smoothly connected.
4. the injection nozzle of a kind of sprayed mortar according to claim 1 is characterized in that: described hole group (5) is arranged on the through hole of arranging ringwise on straight tube structure (4) for several, and the distance between adjacent through-holes is identical.
5. the injection nozzle of a kind of sprayed mortar according to claim 4 is characterized in that: the angle between the axis of the center line of described through hole and nozzle body (6) is less than 90 °, and the center line of through hole deflection straight tube structure (4) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673299 CN202926343U (en) | 2012-12-10 | 2012-12-10 | Injection nozzle for injecting concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220673299 CN202926343U (en) | 2012-12-10 | 2012-12-10 | Injection nozzle for injecting concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926343U true CN202926343U (en) | 2013-05-08 |
Family
ID=48216317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220673299 Expired - Fee Related CN202926343U (en) | 2012-12-10 | 2012-12-10 | Injection nozzle for injecting concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926343U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918055A (en) * | 2017-03-02 | 2017-07-04 | 蔡肃民 | A kind of Micro Turbine Jet Engine fuel oil choked flow atomizer |
| CN107013233A (en) * | 2017-06-16 | 2017-08-04 | 徐工集团工程机械有限公司 | Concrete spray head and concrete sprayer |
| CN107281926A (en) * | 2017-07-27 | 2017-10-24 | 中国神华能源股份有限公司 | Modification flying dust nozzle for flue gas demercuration |
| CN108554664A (en) * | 2018-06-22 | 2018-09-21 | 衡阳泰源商砼有限公司 | A kind of nozzle arrangements of gunite concrete |
| CN109881893A (en) * | 2019-03-08 | 2019-06-14 | 中国铁建重工集团有限公司 | A kind of nozzle for wet shot trolley |
-
2012
- 2012-12-10 CN CN 201220673299 patent/CN202926343U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918055A (en) * | 2017-03-02 | 2017-07-04 | 蔡肃民 | A kind of Micro Turbine Jet Engine fuel oil choked flow atomizer |
| CN107013233A (en) * | 2017-06-16 | 2017-08-04 | 徐工集团工程机械有限公司 | Concrete spray head and concrete sprayer |
| CN107281926A (en) * | 2017-07-27 | 2017-10-24 | 中国神华能源股份有限公司 | Modification flying dust nozzle for flue gas demercuration |
| CN107281926B (en) * | 2017-07-27 | 2023-07-25 | 中国神华能源股份有限公司 | Modified fly ash nozzle for flue gas mercury removal |
| CN108554664A (en) * | 2018-06-22 | 2018-09-21 | 衡阳泰源商砼有限公司 | A kind of nozzle arrangements of gunite concrete |
| CN109881893A (en) * | 2019-03-08 | 2019-06-14 | 中国铁建重工集团有限公司 | A kind of nozzle for wet shot trolley |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20211210 |