CN215901997U - Paint spray gun device for nodular cast iron pipe - Google Patents
Paint spray gun device for nodular cast iron pipe Download PDFInfo
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- CN215901997U CN215901997U CN202121891461.4U CN202121891461U CN215901997U CN 215901997 U CN215901997 U CN 215901997U CN 202121891461 U CN202121891461 U CN 202121891461U CN 215901997 U CN215901997 U CN 215901997U
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- spray gun
- paint spray
- atomizer
- air inlet
- gun device
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Abstract
The utility model discloses a paint spray gun device for a nodular cast iron pipe, which comprises an inner nozzle and an atomizer, wherein the inner nozzle is arranged in the inner nozzle; the inner nozzle comprises a connecting head part, a butt joint part, a locking part and a nozzle head part which are sequentially arranged from top to bottom; the atomizer comprises an air inlet cavity and an atomizing cavity which are sequentially communicated from top to bottom, and an air inlet communicated with the air inlet cavity is formed in the side wall of the atomizer; the inner nozzle is at least partially positioned within the atomizer such that the spray head portion is at least partially positioned within the atomization chamber. The problem of current rock field spray gun wearing and tearing great, pipeline laying circuit more and be not suitable for the less pipe die spraying of internal diameter is solved.
Description
Technical Field
The utility model relates to nodular cast iron pipe processing equipment, in particular to a paint spray gun device for a nodular cast iron pipe.
Background
After years of practical use, the safety and the practicability of the ductile cast iron pipe are generally accepted by the water supply industry. With the wide-range use of the nodular cast iron pipe in water supply and fuel gas delivery, the advantages of the large-caliber nodular cast iron pipe compared with pipelines made of PE, PVC and the like are particularly obvious. The pipeline above DN1400 is produced by a hot die method, and the biggest difference from a water-cooling centrifuge is that a layer of coating needs to be sprayed on the inner wall of a pipe die before casting; at present, the commonly used spray gun for the rock field is expensive firstly; secondly, because the mixed solid particle suspension coating is frequently sprayed, the abrasion is large, and the service life is short; and thirdly, the size of the rock field spray gun is large and the number of pipelines is large, so that the size of the whole spraying system is too large, paint and water vapor can be adsorbed in a pipe die with a small inner diameter to form paint drips, and the spraying quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coating spray gun device for a nodular cast iron pipe, which solves the problems that the existing rock field spray gun has large abrasion, more pipeline laying lines and is not suitable for spraying of a pipe die with a small inner diameter.
In order to achieve the above object, the present invention provides a paint spray gun apparatus for ductile iron pipes, the paint spray gun apparatus including an inner nozzle and an atomizer;
the inner nozzle comprises a connecting head part, a butt joint part, a locking part and a nozzle head part which are sequentially arranged from top to bottom;
the atomizer comprises an air inlet cavity and an atomizing cavity which are sequentially communicated from top to bottom, and an air inlet communicated with the air inlet cavity is formed in the side wall of the atomizer;
the inner nozzle is at least partially positioned within the atomizer such that the spray head portion is at least partially positioned within the atomization chamber.
Preferably, the upper part of the air inlet cavity forms a clamping groove matched with the locking part.
Preferably, an internal thread structure is formed in the engaging groove, and an external thread structure matched with the internal thread structure is formed on a side surface of the locking portion.
Preferably, the upper end of the atomizer is recessed downwards to form an annular groove, and the abutting part is at least partially clamped in the annular groove.
Preferably, a sealing ring is arranged in the annular groove.
Preferably, the air inlet cavity is communicated with the atomization cavity through an acceleration cavity;
the section of the accelerating cavity is a trapezoid section with a large upper part and a small lower part.
Preferably, the upper apex angle of the trapezoidal cross section is 30-60 °.
Preferably, the lower end of the atomizing chamber is in threaded connection with a fan-shaped nozzle.
Preferably, the inner diameter of the atomizing chamber is smaller than the inner diameter of the gas inlet chamber.
Preferably, the inner nozzle and the atomizer are both made of stainless steel.
The utility model provides a paint spray gun device for a nodular cast iron pipe, which comprises an inner nozzle and an atomizer, wherein the inner nozzle is arranged in the inner nozzle; the inner nozzle comprises a connecting head part, a butt joint part, a locking part and a nozzle head part which are sequentially arranged from top to bottom; the atomizer comprises an air inlet cavity and an atomizing cavity which are sequentially communicated from top to bottom, and an air inlet communicated with the air inlet cavity is formed in the side wall of the atomizer; the inner nozzle is at least partially positioned within the atomizer such that the spray head portion is at least partially positioned within the atomization chamber. The bottom of the atomization chamber is connected with a fan-shaped nozzle which is marked, and the fan-shaped nozzle can be a type which is well known and commonly used in the field, such as a 6540 type nozzle made of stainless steel; the inner nozzle conveys the coating to the atomizing cavity, primary atomization is carried out in the atomizing cavity by combining the entering compressed gas, and then secondary atomization is carried out through the fan-shaped nozzle, so that the atomizing effect is effectively improved; compared with the existing rock field spray gun, the coating spray gun device has simpler structure and lower manufacturing cost; the paint spray gun device comprises a liquid conveying pipeline connected with an inner nozzle and a gas conveying pipeline connected with a gas inlet, the whole device only needs two pipelines, and the system structure is simpler.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a block diagram of an atomizer in a coating material gun apparatus provided in accordance with the present invention;
FIG. 2 is a block diagram of an internal nozzle of the paint spray gun apparatus provided by the present invention;
fig. 3 is an overall configuration diagram of a paint spray gun apparatus according to the present invention.
Description of the reference numerals
1-atomizer 11-clamping groove
12-annular groove 13-air inlet cavity
14-acceleration chamber 15-air inlet
16-atomizing cavity 2-inner nozzle
21-connecting head 22-docking head
23-sealing ring 24-locking part
25-nozzle head
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1-3: the utility model provides a paint spray gun device for a nodular cast iron pipe, which comprises an inner nozzle 2 and an atomizer 1; the inner nozzle 2 comprises a connecting head part 21, a butt joint part 22, a locking part 24 and a nozzle part 25 which are sequentially arranged from top to bottom; the atomizer 1 comprises an air inlet cavity 13 and an atomizing cavity 16 which are sequentially communicated from top to bottom, and an air inlet 15 communicated with the air inlet cavity 13 is formed in the side wall of the atomizer 1; the inner nozzle 2 is at least partially located within the atomizer 1 such that the spray head portion 25 is at least partially located within the atomizing chamber 16. The bottom of the atomization chamber is connected with a fan-shaped nozzle which is marked, and the fan-shaped nozzle can be a type which is well known and commonly used in the field, such as a 6540 type nozzle made of stainless steel; the inner nozzle conveys the coating to the atomizing cavity, primary atomization is carried out in the atomizing cavity by combining the entering compressed gas, and then secondary atomization is carried out through the fan-shaped nozzle, so that the atomizing effect is effectively improved; compared with the existing rock field spray gun, the coating spray gun device has simpler structure and lower manufacturing cost; the paint spray gun device comprises a liquid conveying pipeline connected with an inner nozzle and a gas conveying pipeline connected with a gas inlet, the whole device only needs two pipelines, and the system structure is simpler.
In a preferred embodiment of the present invention, in order to enable the atomizer 1 and the inner nozzle 2 to be tightly connected, the upper portion of the air inlet chamber 13 is formed with a catching groove 11 that is engaged with the locking portion 24.
In a preferred embodiment of the present invention, in order to facilitate the attachment and detachment of the atomizer 1 and the inner nozzle 2 and increase the airtightness therebetween, a female screw structure is formed in the engagement groove 11, and a male screw structure that fits the female screw structure is formed on the side surface of the locking portion 24.
In a preferred embodiment of the present invention, in order to increase the air tightness of the upper end of the atomizer 1 and enable a tight connection between the atomizer 1 and the inner nozzle 2, the upper end of the atomizer 1 is recessed downward to form an annular groove 12, and the abutting portion 22 is at least partially snapped into the annular groove 12.
In a preferred embodiment of the present invention, a sealing ring 23 is provided in the annular groove 12 for increasing the airtightness.
In a preferred embodiment of the present invention, in order to increase the atomization effect, the air inlet chamber 13 is communicated with the atomization chamber 16 through an acceleration chamber 14; the accelerating cavity 14 has a trapezoidal cross section with a large upper part and a small lower part. The accelerating cavity 14 can enable the compressed gas entering the air inlet cavity 13 to rapidly enter the atomizing cavity 16, and the atomizing effect is improved.
In a preferred embodiment of the present invention, the upper apex angle of the trapezoidal cross section is 30 to 60 ° in order to increase the atomization effect.
In a preferred embodiment of the present invention, a fan-shaped nozzle is screwed to the lower end of the atomizing chamber 16. The fan nozzle may be of a type known and commonly used in the art, such as a 6540 nozzle of stainless steel, which is capable of achieving the secondary atomization effect.
In a preferred embodiment of the present invention, in order to increase the atomization effect, the inner diameter of the atomization chamber 16 is smaller than the inner diameter of the air inlet chamber 13.
In a preferred embodiment of the present invention, the inner nozzle 2 and the atomizer 1 are made of stainless steel to improve the strength of the whole device and reduce the production cost.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A paint spray gun device for ductile iron pipes, characterized in that it comprises an inner nozzle (2) and an atomizer (1);
the inner nozzle (2) comprises a connecting head part (21), a butt joint part (22), a locking part (24) and a nozzle head part (25) which are sequentially arranged from top to bottom;
the atomizer (1) comprises an air inlet cavity (13) and an atomizing cavity (16) which are sequentially communicated from top to bottom, and an air inlet (15) communicated with the air inlet cavity (13) is formed in the side wall of the atomizer (1);
the inner nozzle (2) is at least partially located within the atomizer (1) such that the spray head portion (25) is at least partially located within the atomizing chamber (16).
2. A paint spray gun device according to claim 1, characterized in that the upper part of the air inlet chamber (13) forms a snap groove (11) cooperating with the locking portion (24).
3. A paint spray gun device according to claim 2, characterized in that an internal thread structure is formed in said engaging groove (11), and an external thread structure which is fitted to said internal thread structure is formed on a side surface of said locking portion (24).
4. A paint spray gun device according to claim 1, characterised in that the upper end of the atomiser (1) is recessed downwardly to form an annular groove (12), the abutment (22) being at least partially snap-fitted into the annular groove (12).
5. A paint spray gun device according to claim 4, characterised in that a sealing ring (23) is provided in the annular groove (12).
6. A paint spray gun device according to claim 1, characterized in that said air inlet chamber (13) communicates with said atomizing chamber (16) through an acceleration chamber (14);
the section of the accelerating cavity (14) is a trapezoid section with a large upper part and a small lower part.
7. A paint spray gun apparatus according to claim 6 in which the upper apex angle of the trapezoidal cross-section is 30-60 °.
8. A paint spray gun device according to claim 1, characterised in that a fan nozzle is screwed to the lower end of the atomising chamber (16).
9. A paint spray gun device according to claim 1, characterized in that the inner diameter of the atomizing chamber (16) is smaller than the inner diameter of the air inlet chamber (13).
10. A paint spray gun device according to claim 1, characterized in that the inner nozzle (2) and the atomizer (1) are both of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891461.4U CN215901997U (en) | 2021-08-12 | 2021-08-12 | Paint spray gun device for nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121891461.4U CN215901997U (en) | 2021-08-12 | 2021-08-12 | Paint spray gun device for nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215901997U true CN215901997U (en) | 2022-02-25 |
Family
ID=80291426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121891461.4U Active CN215901997U (en) | 2021-08-12 | 2021-08-12 | Paint spray gun device for nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215901997U (en) |
-
2021
- 2021-08-12 CN CN202121891461.4U patent/CN215901997U/en active Active
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