CN204746647U - Nozzle for water proof coating spraying equipment - Google Patents
Nozzle for water proof coating spraying equipment Download PDFInfo
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- CN204746647U CN204746647U CN201520301821.9U CN201520301821U CN204746647U CN 204746647 U CN204746647 U CN 204746647U CN 201520301821 U CN201520301821 U CN 201520301821U CN 204746647 U CN204746647 U CN 204746647U
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- jet
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Abstract
The utility model relates to a spray technique field of waterproof material's waterproof coating, in particular to nozzle for water proof coating spraying equipment, including being equipped with the nozzle body that sprays the chamber, spray the chamber includes pressure boost chamber, adapter cavity and liquid collecting cavity after to in the past in proper order, pressure boost chamber and liquid collecting cavity are cylindrical cavity, the adapter cavity is conical cavity, the terminal surface is sphere type terminal surface before the inner chamber in pressure boost chamber, be equipped with the oval -shaped jet on the sphere type terminal surface, V type grooving has been offered on the preceding terminal surface of nozzle body, the both ends of V type grooving have been seted up and have been dodged the groove, the utility model discloses having the spraying, to cover the surface distribution even, and the effect of coating misce bene can effectively avoid the jet to block up the phenomenon that accumulates with coating in nozzle department simultaneously.
Description
Technical field
The utility model relates to the spraying technology field of the waterproof coating of waterproof material, particularly a kind of special nozzle spraying waterproof material.
Background technology
In the tunnel of basic job facilities and other underground engineering, very high to the requirement of anti-seep water.The waterproof measure of current employing is normally by the mode of spray film construction, namely specifically the water-repellent paint of the shape that is in a liquid state is sprayed on the metope needing to carry out water-proofing treatment or wall, one deck waterproof membrane can be solidify to form, the waterproof membrane formed by this spraying and play the technique effect of waterproof, seepage control after its coating drying.Certainly also there is the water-proof function of part water-proof sheet material to be spray last layer water-repellent paint by the method for spraying on the top layer of water-proof sheet material, form the waterproof membrane being attached to top layer.
The specific implementation method that water-repellent paint spraying forms waterproof membrane is the top layer by special spraying equipment, the water-repellent paint mixed being injected in metope, wall or waterproof material by high-pressure spray gun; The spraying effect of water-repellent paint directly has influence on the waterproof effect of waterproof membrane, if waterproof coating is in uneven thickness or mix uneven by the water-repellent paint that high-pressure spray gun ejects, directly will affect waterproof effect.
The nozzle arrangements of high-pressure spray gun directly can affect spraying effect, the jet of conventional spout is circular jet, the spraying coverage rate that the coating sprayed from the jet of circle is formed be circle, the thickness that there will be spraying coverage rate becomes the situation of book gradually from circular central to circular periphery, water-repellent paint skewness is made during spraying, make the central area thickness of circular spraying coverage rate excessive, peripheral thickness is not enough, in order to reach the requirement making all spraying coverage rate consistency of thickness, the situation of spraying zones overlap must be there is, cause the waste of coating; And the nozzle of circular jetting loophole often there will be jet blocking and coating mixes uneven situation, directly affects spraying effect and operating efficiency.
In real work, find that the coverage rate of the coating that the nozzle with oval jet ejects is for oval, and coating is comparatively concentrated at the long axis direction of ellipse spraying coverage rate, less along its short-axis direction varied in thickness, in unit interval, in spraying operation, elliptical nozzles is even along the thickness of the inswept spraying coverage rate of its short-axis direction, and coating mixes.
Flat hole as the flat jet flow nozzle in China Patent No. 201210015491.8 disclosed " flat jet flow nozzle and special coating machine " is approximate flat rectangle, approximate prolate is circular, be similar to choosing any one kind of them in flat ellipse hole, its principle is the same with oval jet, all can reach the coating direct effect that distributing homogeneity and coating mix on spraying coverage rate; But the size of the injection coverage rate of the coating that in this patent, flat hole is ejected is relevant with jet length, expulsion pressure and jet size, one single flat hole size can only by the size regulating expulsion pressure and jet length to control to spray coverage rate after determining, and in actual mechanical process, because nozzle is all threaded in spray gun front portion, after nozzle is installed, the angle of length direction on spray gun in flat hole is not easy to control, and could determine the direction of the coverage rate going out to eject from flat hole after only having first pilot injection on the ground.
Utility model content
The purpose of this utility model is for prior art above shortcomings, and provide a kind of water-repellent paint spraying equipment nozzle, comprise the nozzle body being provided with spray chamber, described spray chamber comprises booster cavity, adapter cavity and liquid collecting cavity from front to back successively; Described booster cavity and liquid collecting cavity are cylindrical cavity; Described adapter cavity is conical cavity; The inner chamber front end face of described booster cavity is spherical end face; Described spherical end face is provided with oval jet; The front end face of described nozzle body offers V-type grooving; The two ends of described V-type grooving offer escape groove; One-body molded on excircle in the middle part of described nozzle body have tight lock part; Described tight lock part is regular polygon; The rear portion of described nozzle body is provided with external screw thread; Described jet along spray body direction of axis line be projected as ellipse; The center line of described V-type grooving through the axial line of described nozzle body, the parallel major axis with ellipse of the length direction of V-type grooving; Described nozzle body front portion be circumferentially symmetrically arranged with two reference planes parallel to each other; Described reference plane is parallel to the major axis of oval jet.
The utility model solves its technical problem, the technical scheme adopted is: a kind of water-repellent paint spraying equipment nozzle, comprise the nozzle body being provided with spray chamber, described nozzle body is cylindric, and described spray chamber comprises booster cavity, adapter cavity and liquid collecting cavity from front to back successively; Described booster cavity and liquid collecting cavity are cylindrical cavity, and the aperture of liquid collecting cavity is greater than the aperture of booster cavity; Described adapter cavity is conical cavity, and the large end of adapter cavity connects liquid collecting cavity, and the small end of adapter cavity connects booster cavity; The inner chamber front end face of described booster cavity is spherical end face; Described spherical end face offers oval jet.
Further, the front end face of described nozzle body offers V-type grooving.
Further, escape groove is offered at the two ends of described V-type grooving.
Further, one-body molded on the excircle at the middle part of described nozzle body have tight lock part; Described tight lock part is regular polygon.
Further, described tight lock part is square or regular hexagon.
Further, the rear portion of described nozzle body is provided with external screw thread, and described external screw thread matches with the internal thread of the spray gun of spray film water-proof paint.
Further, described jet along spray body direction of axis line be projected as ellipse; The scope of the major axis D of described ellipse is 2.50mm≤D≤3.00mm, and the scope of oval minor axis d is 1.75mm≤d≤2.00mm.
Further, the center line of described V-type grooving through the axial line of described nozzle body, the parallel major axis with ellipse of the length direction of V-type grooving.
Further, the span of the angle a of described V-type grooving is 40 °≤a≤50 °.
Further, the excircle of described nozzle body front portion is symmetrically arranged with two reference planes parallel to each other; Described reference plane is parallel to the major axis of oval jet.
Compared with prior art, the beneficial effects of the utility model are: a kind of water-repellent paint spraying equipment nozzle disclosed in the utility model makes spraying coverage rate present ellipse by arranging oval jet, coating is evenly distributed and mixes, by being arranged on V-type grooving and the escape groove of nozzle body front end face, preventing the paint accumulation because of going out from jet high velocity jet from nozzle body front end face and outer circumference surface, blocking jet, it also avoid a large amount of spray coating liquor simultaneously and accumulate on nozzle and then drip on spraying operation face; Being arranged at the anterior reference plane circumferentially of nozzle body for judging the direction of the major axis spraying the ellipse spraying coverage rate formed, contributing to the direction that operating personnel's moment in hand spray operation pays close attention to jet.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is perspective cross-sectional structural representation of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 is sectional structure schematic diagram of the present utility model;
Description of reference numerals: spray chamber 1, booster cavity 1a, adapter cavity 1b, liquid collecting cavity 1c, jet 2, V-type grooving 3, escape groove 4, tight lock part 5, external screw thread 6, reference plane 7, the major axis D of oval jet, the minor axis d of oval jet.
Specific embodiments
Below in conjunction with Figure of description and embodiment, specific embodiment of the utility model is described in further detail:
Referring to figs. 1 through a kind of water-repellent paint spraying equipment nozzle shown in Fig. 4, comprise the nozzle body being provided with spray chamber 1, described nozzle body is cylindric, and described spray chamber 1 comprises booster cavity 1a, adapter cavity 1b and liquid collecting cavity 1c from front to back successively; Described booster cavity 1a and liquid collecting cavity 1c is cylindrical cavity, and the aperture of liquid collecting cavity 1c is greater than the aperture of booster cavity 1a, and described adapter cavity 1b is conical cavity, and the large end of adapter cavity 1b connects liquid collecting cavity 1c, and the small end of adapter cavity 1b connects booster cavity 1a; The inner chamber front end face of described booster cavity 1a is spherical end face; Described ball-type end face is provided with oval jet 2; The front end face of described nozzle body offers V-type grooving 3; The two ends of described V-type grooving 3 offer escape groove 4.
Wherein, the spherical end face of booster cavity 1a can make the pressure distribution of coating at jet 2 place even, makes the coating pressure that ejects even, and then is conducive to coating and mixes; V-type grooving 3 and escape groove 4 effectively avoid the front end face that the coating sprayed at a high speed from jet 2 clashes into nozzle body, avoid the accumulation of coating at jet 2 place, effectively prevent jet 2 blocking and coating from dropping onto on spraying operation face from front end face.
Particularly, when coating sprays at a high speed from nozzle, coating can be oval minor axis d along two of a V-type grooving 3 cell wall radiation, length direction radiation along V-type grooving 3 is oval major axis D, the cell wall of V-type grooving 3 serves the guide effect to spray coating liquor, spray coating liquor can not touch the front end face of nozzle body, and the drop that the escape groove 4 being distributed in V-type grooving 3 two ends is formed makes the coating along the radiation of V-type grooving 3 length direction can not touch the outer circumference surface of nozzle body; Resultant effect makes coating can not accumulate at spray nozzle front end, effectively prevents jet 2 from blocking.
One-body molded on excircle in the middle part of described nozzle body have tight lock part 5; Described tight lock part 5 is regular polygon, and present embodiment preferably its tight lock part 5 is regular hexagon or square.The instruments such as spanner are used can be conveniently installed on spray gun by nozzle by tight lock part 5.The rear portion of described nozzle body is provided with external screw thread 6, and described external screw thread 6 matches with the internal thread of the spray gun of spray film water-proof paint, to facilitate the connection of itself and spray gun.
Described jet 2 along spray body direction of axis line be projected as ellipse; The scope of the major axis D of described ellipse is 2.50mm≤D≤3.00mm, and the scope of oval minor axis d is 1.75mm≤d≤2.00mm.The hole depth of described oval jet 2 is 0.50-1.00mm.Through verification experimental verification, when the projection span of oval jet 2 is above-mentioned value range, the effect of its spraying film forming is better, the elliptical nozzles mouth 2 of its this size spray the spraying coverage rate formed, its spraying A, B material mixing evenly, area coverage is of moderate size, and in unit are, ellipse is less than round spraying coverage rate, the spraying wide coverage of oval spraying in the unit interval.And more save material, and be: in work progress that, during composite geo-membrane overlap joint, the shape needing spraying is ellipse on the one hand, material more more surplus than circle; On the other hand, in prior art, circular aperture is little easily stifled, often there will be A, B and expects disproportionate mixing, causes last A material or B material have residue and waste.A material or B material as residue wherein any one, next time just can not employ, because add initator.
The center line of described V-type grooving 3 through the axial line of described nozzle body, the parallel major axis D with ellipse of the length direction of V-type grooving 3.
The span of the angle a of described V-type grooving 3 is 40 °≤a≤50 °, prove through test, when the angle a of V-type grooving 3 gets this angle value, the contact area of A material and B material in the unit interval can be expanded further, reach better mixed effect, make the mixing of its two kinds of coating more even, and the waterproof effect of the waterproof membrane of ejection formation is better.
It is emphasized that, nozzle of the present utility model not only can by regulating the distance in spray gun and spraying operation face in spray gun pressure and spraying operation when jet 2 size is fixed, secondary operations can also be carried out to the angle of V-type grooving 3 according to actual conditions, change the length of the minor axis of oval spraying coverage rate with this, thus regulate the coverage density of coating in oval spraying coverage rate.
The excircle of nozzle body front portion is symmetrically arranged with two reference planes parallel to each other 7; Described reference plane 7 is parallel to the major axis D of oval jet 2.
It is emphasized that, because jet 2 is arranged on the front end face of nozzle body, when practical operation, operating personnel cannot observe the actual angle of jet 2, and then cannot the angle of spraying coverage rate of anticipation ellipse, circumferentially offer the plane of reference parallel with the long axis direction of jet 2 in the front portion of nozzle body, contribute to the angle that operating personnel's moment pays close attention to jet 2.
The above is only preferred embodiment of the present utility model, not restricts technical scope of the present utility model, and all amendments of doing according to above embodiment and equivalent variations, all belong in protection domain of the present utility model.
Claims (5)
1. a water-repellent paint spraying equipment nozzle, comprise the nozzle body being provided with spray chamber (1), described nozzle body is cylindric, it is characterized in that: described spray chamber (1) comprises booster cavity (1a), adapter cavity (1b) and liquid collecting cavity (1c) from front to back successively; Described booster cavity (1a) and liquid collecting cavity (1c) are cylindrical cavity, and the aperture of liquid collecting cavity (1c) is greater than the aperture of booster cavity (1a); Described adapter cavity (1b) is conical cavity; The large end of adapter cavity (1b) connects liquid collecting cavity (1c), and the small end of adapter cavity (1b) connects booster cavity (1a); The inner chamber front end face of described booster cavity (1a) is spherical end face; Described spherical end face is provided with oval jet (2).
2. a kind of water-repellent paint spraying equipment nozzle according to claim 1, is characterized in that: one-body molded on the excircle at the middle part of described nozzle body have tight lock part (5); Described tight lock part (5) is regular polygon.
3. a kind of water-repellent paint spraying equipment nozzle according to claim 2, is characterized in that: described tight lock part (5) is regular hexagon or square.
4. a kind of water-repellent paint spraying equipment nozzle according to any one of claim 1 to 3, it is characterized in that: the rear portion of described nozzle body is provided with external screw thread (6), described external screw thread (6) matches with the internal thread of the spray gun of spray film water-proof paint.
5. a kind of water-repellent paint spraying equipment nozzle according to any one of claim 1 to 3, is characterized in that: the front portion of described nozzle body be circumferentially symmetrically arranged with two reference planes (7) parallel to each other; Described reference plane (7) is parallel to oval major axis (D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301821.9U CN204746647U (en) | 2015-05-12 | 2015-05-12 | Nozzle for water proof coating spraying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301821.9U CN204746647U (en) | 2015-05-12 | 2015-05-12 | Nozzle for water proof coating spraying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204746647U true CN204746647U (en) | 2015-11-11 |
Family
ID=54461405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520301821.9U Expired - Fee Related CN204746647U (en) | 2015-05-12 | 2015-05-12 | Nozzle for water proof coating spraying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204746647U (en) |
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2015
- 2015-05-12 CN CN201520301821.9U patent/CN204746647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160923 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 district two building 303 Patentee after: CHINA ACADEMY OF RAILWAY SCIENCES RAILWAY ENGINEERING Research Institute Patentee after: CHINA RAILWAY ECONOMIC AND PLANNING Research Institute Patentee after: CHENGDU JIAZHOU NEW WATERPROOF MATERIAL CO.,LTD. Address before: 610036, Sichuan Province, Chengdu City, Chengdu province Jinniu District Jinniu Township pay home grinding village six groups Patentee before: CHENGDU JIAZHOU NEW WATERPROOF MATERIAL CO.,LTD. |
|
| 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: 20151111 |