CN107560440B - Spray gun head, spray gun with spray gun head and processing method of spray gun head - Google Patents
Spray gun head, spray gun with spray gun head and processing method of spray gun head Download PDFInfo
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- CN107560440B CN107560440B CN201710854471.2A CN201710854471A CN107560440B CN 107560440 B CN107560440 B CN 107560440B CN 201710854471 A CN201710854471 A CN 201710854471A CN 107560440 B CN107560440 B CN 107560440B
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- tube
- spray gun
- wall surface
- gun head
- inner tube
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- 239000007921 spray Substances 0.000 title claims abstract description 67
- 238000003672 processing method Methods 0.000 title abstract description 7
- 238000012545 processing Methods 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Abstract
The invention discloses a spray gun head, a spray gun with the spray gun head and a processing method of the spray gun head, wherein the spray gun head comprises the following components: an outer tube; the inner pipe is arranged in the outer pipe, the outer wall surface of the inner pipe is provided with a plurality of first bulges which are distributed at intervals along the circumferential direction of the inner pipe, and the first bulges are abutted against the inner wall surface of the outer pipe so as to ensure that the outer wall surface of the inner pipe and the inner wall surface of the outer pipe are spaced apart to define a first gas channel; the central tube is arranged in the inner tube, a plurality of second bulges are arranged on the outer wall surface of the central tube and distributed along the circumferential direction at intervals, and the second bulges are stopped against the inner wall surface of the inner tube so that a second gas channel is defined between the outer wall surface of the central tube and the inner wall surface of the inner tube at intervals, and the central tube is in interference fit with the inner tube. According to the spray gun head provided by the embodiment of the invention, the central tube and the inner tube are arranged into the split structure, and the structure is simple through interference fit, the processing and the forming are convenient, and the cost is low.
Description
Technical Field
The invention relates to the field of equipment manufacturing, in particular to a spray gun head, a spray gun with the spray gun head and a processing method of the spray gun head.
Background
In the field of nonferrous metallurgy, a spray gun is a device for supplying various gases such as oxygen, compressed air, natural gas and the like into a metallurgical furnace, and generally consists of a plurality of tubes sleeved inside and outside. Generally, the inner tube gun head is processed into a specific shape, such as a honeycomb structure or a uniformly distributed fan-shaped hole structure, and after being sleeved into the outer tube, the gap between the inner tube and the outer tube is a gas channel, and the specific shape of the inner tube gun head is another gas channel, but the traditional gun head is difficult to process and has high cost.
Disclosure of Invention
The present invention aims to solve at least to some extent one of the above technical problems.
Therefore, the invention provides the spray gun head which is simple in structure and convenient to process.
The invention also provides a spray gun with the spray gun head.
The invention also provides a method for processing the spray gun head.
According to an embodiment of the first aspect of the present invention, a spray gun head comprises:
an outer tube; the inner pipe is arranged in the outer pipe, the outer wall surface of the inner pipe is provided with a plurality of first bulges which are distributed at intervals along the circumferential direction of the inner pipe, and the first bulges are stopped against the inner wall surface of the outer pipe so that a first gas channel is defined between the outer wall surface of the inner pipe and the inner wall surface of the outer pipe at intervals; the central tube is arranged in the inner tube, a plurality of second bulges are arranged on the outer wall surface of the central tube at intervals along the circumferential direction of the central tube, the second bulges are stopped against the inner wall surface of the inner tube so that a second gas channel is defined between the outer wall surface of the central tube and the inner wall surface of the inner tube at intervals, and the central tube is in interference fit with the inner tube.
According to the spray gun head provided by the embodiment of the invention, the central tube and the inner tube are arranged into the separate structures, and the structure is simple, the processing and the forming are convenient, and the cost is low.
In addition, the spray gun head according to the embodiment of the invention can also have the following additional technical characteristics:
according to one embodiment of the invention, the inner tube and the outer tube are coaxial and in interference fit, and the first protrusions respectively extend along the radial direction of the inner tube and are uniformly arranged on the outer wall surface of the inner tube at intervals.
According to one embodiment of the present invention, the central tube is coaxial with the inner tube, and the plurality of second protrusions are respectively provided on the outer wall surface of the central tube at uniform intervals and extend substantially in the radial direction of the central tube.
According to one embodiment of the present invention, the center tube is formed as a circular tube, and the plurality of second protrusions are welded to an outer wall surface of the center tube.
According to one embodiment of the present invention, the central tube includes a plurality of connection portions, and the connection portions are sequentially connected in the circumferential direction of the inner tube to form a substantially circular tube, and each connection portion is provided with the second protrusion.
According to one embodiment of the invention, the connection is formed in a sector ring shape or a trapezoid shape.
According to one embodiment of the invention, the connecting portion is integrally formed with the second protrusion.
The spray gun according to the embodiment of the second aspect of the invention comprises the spray gun head according to the above-mentioned embodiment.
According to the processing method of the spray gun head of the spray gun, which is an embodiment of the third aspect of the invention, the method comprises the following steps:
s1, processing an inner tube, wherein the outer wall surface of the inner tube is provided with a plurality of first bulges which are distributed at intervals along the circumferential direction of the inner tube;
s2, processing a central tube according to the space occupation ratio requirement in the spray gun head and the overall size requirement of the spray gun head, wherein a plurality of second protrusions are arranged on the outer wall surface of the central tube and are distributed at intervals along the circumferential direction of the central tube;
s3, inserting the central tube into the inner tube and performing interference fit with the inner tube;
s4, sleeving an outer pipe outside the inner pipe to assemble the spray gun head.
According to one embodiment of the present invention, in the step S1, the inner tube is formed by milling or wire cutting from a steel tube as a blank.
According to an embodiment of the present invention, in the step S2, when the thickness of the second protrusions in the circumferential direction of the center tube, and the minimum gap between two adjacent second protrusions spaced apart on the outer wall surface of the center tube all reach a predetermined value, the center tube is formed as a circular tube, and a plurality of the second protrusions are welded to the outer wall surface of the center tube.
According to an embodiment of the present invention, in the step S2, when the thickness of the second protrusions in the circumferential direction of the center tube and the minimum gap between two adjacent second protrusions on the outer wall surface of the center tube are smaller than a predetermined value, the center tube is formed of a plurality of connection portions, which are sequentially connected in the circumferential direction of the inner tube to be substantially circular tubes, and each of the connection portions is provided with the second protrusion.
According to one embodiment of the present invention, in the step S3, a plurality of the connection parts are combined and directly pressed into the inner tube.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of a construction of an inner tube of a conventional spray gun head;
FIG. 2 is a further schematic structural view of the inner tube of a conventional spray gun head;
FIG. 3 is a schematic view of the structure of a spray gun head according to an embodiment of the invention;
FIG. 4 is a schematic view of a structure of the connection of the inner tube and the center tube of the gun head according to an embodiment of the present invention;
FIG. 5 is a further schematic illustration of the connection of the inner tube and the center tube of the gun head according to an embodiment of the invention;
FIG. 6 is a schematic structural view of an inner tube of a spray gun head according to an embodiment of the present invention;
FIG. 7 is a schematic view of a center tube of a spray gun head according to an embodiment of the invention;
FIG. 8 is a schematic view of yet another configuration of the center tube of the gun head according to an embodiment of the invention;
FIG. 9 is a schematic structural view of the connection of the gun head according to an embodiment of the invention;
fig. 10 is a flow chart of a method of gun head processing according to an embodiment of the invention.
Reference numerals:
a lance tip 100; an outer tube 10;
an inner tube 20; a first protrusion 21;
a central tube 30; a second protrusion 31; a connection portion 32.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The present invention is an invention made by the inventors of the present application based on the following facts.
In the prior art, an inner tube and a central tube of a spray gun head are integrally formed, in order to ensure the air supply area, a cavity of a cross section of the processed gun head usually has certain requirements, as shown in fig. 1, in a scheme A, the inner tube 1 is formed by processing bar materials by wire cutting, the formed channel space occupies a relatively large space, as shown in fig. 2, in a scheme B, a plurality of round holes are drilled on the cross section of the inner tube 2, and a honeycomb-shaped tissue is formed. Both of the above two conventional solutions have problems of long processing time and high cost, for example: in the scheme A, when the time for machining one gun head by wire cutting exceeds 48 shifts in a certain engineering example, in the scheme B, if the length direction of the gun head exceeds a certain size, the punching cost is higher, and the center positioning is difficult during punching.
Based on the technical problems existing in the prior art, the inventor of the application researches and improves the traditional spray gun head, and provides a spray gun head, a spray gun with the spray gun head and a processing method of the spray gun head.
A spray gun tip 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 3 to 5, the spray gun tip 100 according to the embodiment of the present invention includes an outer tube 10, an inner tube 20, and a center tube 30.
Specifically, the inner tube 20 is disposed in the outer tube 10, the outer wall surface of the inner tube 20 is provided with a plurality of first protrusions 21 spaced apart along the circumferential direction thereof, the first protrusions 21 are abutted against the inner wall surface of the outer tube 10 so as to define a first gas passage between the outer wall surface of the inner tube 20 and the inner wall surface of the outer tube 10 at intervals, the center tube 30 is disposed in the inner tube 20, the outer wall surface of the center tube 30 is provided with a plurality of second protrusions 31 spaced apart along the circumferential direction thereof, the second protrusions 31 are abutted against the inner wall surface of the inner tube 20 so as to define a second gas passage between the outer wall surface of the center tube 30 and the inner wall surface of the inner tube 20 at intervals, and the center tube 30 is in interference fit with the inner tube 20.
In other words, the spray gun head 100 according to the embodiment of the present invention is mainly composed of the outer tube 10, the inner tube 20, and the center tube 30. The outer tube 10 is sleeved outside the inner tube 20, as shown in fig. 6, a plurality of first protrusions 21 are arranged on the inner tube 20, the first protrusions 21 are distributed at intervals along the axial direction of the outer wall surface of the inner tube 20, the first protrusions 21 are stopped against the inner wall surface of the outer tube 10, the outer wall surface of the inner tube 20, the inner wall surface of the outer tube 10 and the first protrusions 21 together define a plurality of first gas channels, one gas in the spray gun can be sprayed out through the first gas channels, the inner tube 20 is sleeved on the central tube 30 and is in interference fit with the central tube 30, the structure is stable, as shown in fig. 7, a plurality of second protrusions 31 are arranged on the outer wall surface of the central tube 30, the second protrusions 31 are stopped against the inner wall surface of the inner tube 20, and the outer wall surface of the central tube 30, the inner wall surface of the inner tube 20 and the second protrusions 31 together define a plurality of second gas channels, and the other gas in the spray gun can be sprayed out through the second gas channels.
Thus, according to the spray gun head 100 of the embodiment of the present invention, by arranging the center tube 30 and the inner tube 20 as separate structures and by interference fit, the structure is simple, the process molding is convenient, and the cost is low.
According to some embodiments of the present invention, the inner tube 20 and the outer tube 10 are coaxially disposed, the inner tube 20 and the outer tube 10 are in interference fit, the plurality of first protrusions 21 respectively extend along the radial direction of the inner tube 20 and are uniformly spaced on the outer wall surface of the inner tube 20, and the spacing between two adjacent first protrusions 21 is equal. Thus, the gas ejected from the lance tip 100 of this configuration is more uniform.
In one embodiment of the present invention, the central tube 30 is coaxially disposed with the inner tube 20, and the plurality of second protrusions 31 are respectively formed on the outer wall surface of the central tube 30 at uniform intervals and extend substantially along the radial direction of the central tube 30, and the distances between two adjacent second protrusions 31 are equal. This can further improve the uniformity of the gas discharged from the lance tip 100.
In one embodiment of the present invention, the central tube 30 may be a circular tube, the plurality of second protrusions 31 are respectively formed as rectangular plates, as shown in fig. 7, the plurality of second protrusions 31 are welded on the outer wall surface of the central tube 30 at uniform intervals, and the central tube 30 of the structure is welded with the circular tube through the rectangular plates, so that the structural stability is high.
In another embodiment of the present invention, the central tube 30 may also be composed of a plurality of connection portions 32, as shown in fig. 8 and 9, the plurality of connection portions 32 are sequentially connected along the circumferential direction of the inner tube 20 to form a circular tube, each connection portion 32 is provided with a plate-shaped second protrusion 31, and the circular tube formed by combining the plurality of connection portions 32 may be directly pressed into the inner tube 20 to be in interference fit with the inner tube 20. The central tube 30 of this structure is simple in structure, avoids complex connection modes, and is more convenient to assemble.
The connection portion 32 may be formed in a fan shape or a trapezoid shape, and the connection portion 32 may be formed in other shapes as long as it is satisfied that the connection portion 32 can be formed in a circular tube shape after being spliced.
According to one embodiment of the invention, the connecting part 32 and the second protrusion 31 are integrally formed, and the connecting part 32 and the second protrusion 31 of the structure not only ensure the integral stability, but also are convenient to form and low in cost.
In summary, according to the spray gun head 100 of the embodiment of the present invention, the plurality of first protrusions 21 are provided on the outer wall surface of the inner tube 20, the first protrusions 21 abut against the inner wall surface of the outer tube 10 to define the first gas channel between the outer wall surface of the inner tube 20 and the inner wall surface of the outer tube 10, the plurality of second protrusions 31 are provided on the outer wall surface of the center tube 30, the second protrusions 31 abut against the inner wall surface of the inner tube 20 to define the second gas channel between the outer wall surface of the center tube 30 and the inner wall surface of the inner tube 20, and the center tube 30 and the inner tube 20 are in interference fit, so that the outer tube 10 is sleeved outside the inner tube 20, and the spray gun head has a simple structure and low cost.
The spray gun according to the embodiment of the invention comprises the spray gun head 100 according to the embodiment of the invention, and the spray gun according to the embodiment of the invention has the technical effects that the spray gun head 100 according to the embodiment of the invention has the corresponding technical effects that the spray gun head 100 has simple structure, convenient molding and low cost.
Other constructions and operation of spray guns according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
The method of processing the gun head 100 according to the embodiment of the present invention is specifically described below.
As shown in fig. 10, the processing method of the gun head 100 according to the embodiment of the invention includes the following steps:
s1, processing an inner tube 20, wherein the outer wall surface of the inner tube 20 is provided with a plurality of first bulges 21 which are distributed at intervals along the circumferential direction of the inner tube 20;
s2, processing a central tube 30 according to the space occupation ratio requirement in the spray gun head 100 and the overall size requirement of the spray gun head 100, wherein a plurality of second protrusions 31 are arranged on the outer wall surface of the central tube 30 and are distributed at intervals along the circumferential direction of the central tube;
s3, inserting the central tube 30 into the inner tube 20 and performing interference fit with the inner tube 20;
s4, sleeving the outer tube 10 outside the inner tube 20 to assemble the spray gun head 100.
Specifically, in step S1, the outer wall surface of the inner tube 20 is provided with a plurality of first protrusions 21 distributed at intervals along the circumferential direction, the first protrusions 21 may be formed into a rectangular plate, in step S2, the processing manner of the central tube 30 may be various, a method for appropriately processing the central tube 30 is selected according to the space ratio requirement of the interior of the spray gun head 100, the overall size requirement of the spray gun head 100, the post-welding strength and other factors, the outer wall surface of the central tube 30 is processed into a plurality of second protrusions 31 distributed at intervals along the circumferential direction, the second protrusions 31 may be formed into a plurality of rectangular plates, in step S3, the inner tube 20 is sleeved on the central tube 30, the inner wall of the inner tube 20 is tightly attached to the outer wall of the central tube 30, the inner tube 20 is in interference fit connection with the central tube 30, and in step S4, the outer tube 10 is sleeved outside the inner tube 20 to form a gun head.
Therefore, through respectively processing the central tube 30 and the inner tube 20, the outer wall surfaces of the central tube 30 and the inner tube 20 are respectively provided with the first bulge 21 and the second bulge 31, the inner tube 20 is sleeved outside the central tube 30 and is in interference fit with the central tube 30, the outer tube 10 is sleeved outside the inner tube 20, the processing technology is simple, and the cost is low.
Preferably, in step S1, the inner tube 20 is formed by milling or wire cutting with a steel tube as a blank, and the machining mode is simple and the operability is high.
According to one embodiment of the present invention, in step S2, when the thickness of the second protrusions 31 in the circumferential direction of the center tube 30, the minimum gap between the adjacent two second protrusions 31 on the outer wall surface of the center tube 30, reach a predetermined value, and the center tube 30 is formed into a circular tube under the condition that the post-weld strength is satisfied, the plurality of second protrusions 31 are welded to the outer wall surface of the center tube 30.
According to still another embodiment of the present invention, in step S2, when the thickness of the second protrusions 31 in the circumferential direction of the center tube 30, and the minimum gap between the adjacent two second protrusions 31 on the outer wall surface of the center tube 30 are smaller than a predetermined value, and in the case where there is no welding space, welding deformation is not easily controlled, or welding strength is not easily ensured, the center tube 30 may be formed of a plurality of connection parts 32, the plurality of connection parts 32 are sequentially connected in the circumferential direction of the inner tube 20 to be substantially circular tubes, each connection part 32 is provided with the second protrusions 31, respectively, the circular tube composed of the connection parts 32 is pressed into the inner tube 20, and a desired position and space are maintained by the pressing force of interference fit.
In some embodiments of the present invention, in step S3, the plurality of connection portions 32 are combined and directly pressed into the inner tube 20. Therefore, the assembly method is simple, avoids a complex connection mode, and is more convenient to assemble.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (3)
1. A spray gun tip, comprising:
an outer tube;
the inner pipe is arranged in the outer pipe, the outer wall surface of the inner pipe is provided with a plurality of first bulges which are distributed at intervals along the circumferential direction of the inner pipe, and the first bulges are stopped against the inner wall surface of the outer pipe so that a first gas channel is defined between the outer wall surface of the inner pipe and the inner wall surface of the outer pipe at intervals;
the central tube is arranged in the inner tube, a plurality of second protrusions are arranged on the outer wall surface of the central tube at intervals along the circumferential direction of the central tube, the second protrusions are stopped against the inner wall surface of the inner tube so that a second gas channel is defined between the outer wall surface of the central tube and the inner wall surface of the inner tube at intervals, and the central tube is in interference fit with the inner tube;
the central tube comprises a plurality of connecting parts, the connecting parts are sequentially connected along the circumferential direction of the inner tube to form a round tube, and each connecting part is provided with a second bulge;
the connecting part is formed into a fan ring shape or a trapezoid shape;
the connecting part and the second bulge are integrally formed.
2. The spray gun head according to claim 1, wherein the inner tube and the outer tube are coaxial and in interference fit, and the plurality of first protrusions respectively extend in the radial direction of the inner tube and are uniformly spaced on the outer wall surface of the inner tube.
3. A spray gun comprising a spray gun tip according to any one of claims 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710854471.2A CN107560440B (en) | 2017-09-20 | 2017-09-20 | Spray gun head, spray gun with spray gun head and processing method of spray gun head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710854471.2A CN107560440B (en) | 2017-09-20 | 2017-09-20 | Spray gun head, spray gun with spray gun head and processing method of spray gun head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107560440A CN107560440A (en) | 2018-01-09 |
| CN107560440B true CN107560440B (en) | 2024-04-12 |
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| CN201710854471.2A Active CN107560440B (en) | 2017-09-20 | 2017-09-20 | Spray gun head, spray gun with spray gun head and processing method of spray gun head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929802A (en) * | 2009-06-25 | 2010-12-29 | 中国恩菲工程技术有限公司 | Side-blown spray gun |
| CN102049359A (en) * | 2011-01-04 | 2011-05-11 | 中国恩菲工程技术有限公司 | Spray gun and multi-fluid spray gun device provided with same |
| CN102322742A (en) * | 2011-08-17 | 2012-01-18 | 中国恩菲工程技术有限公司 | Spraying gun |
| CN104152713A (en) * | 2014-08-26 | 2014-11-19 | 中国恩菲工程技术有限公司 | Side-blowing lead melting reduction device |
| CN105849352A (en) * | 2014-01-07 | 2016-08-10 | 萃菲美股份有限公司 | Thermal lance for fusion cutting and/or piercing, comprising at least four tubular profiles and more than 17 cavities inside the lance |
| CN207472061U (en) * | 2017-09-20 | 2018-06-08 | 中国恩菲工程技术有限公司 | Spray gun pipette tips and with its spray gun |
-
2017
- 2017-09-20 CN CN201710854471.2A patent/CN107560440B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929802A (en) * | 2009-06-25 | 2010-12-29 | 中国恩菲工程技术有限公司 | Side-blown spray gun |
| CN102049359A (en) * | 2011-01-04 | 2011-05-11 | 中国恩菲工程技术有限公司 | Spray gun and multi-fluid spray gun device provided with same |
| CN102322742A (en) * | 2011-08-17 | 2012-01-18 | 中国恩菲工程技术有限公司 | Spraying gun |
| CN105849352A (en) * | 2014-01-07 | 2016-08-10 | 萃菲美股份有限公司 | Thermal lance for fusion cutting and/or piercing, comprising at least four tubular profiles and more than 17 cavities inside the lance |
| CN104152713A (en) * | 2014-08-26 | 2014-11-19 | 中国恩菲工程技术有限公司 | Side-blowing lead melting reduction device |
| CN207472061U (en) * | 2017-09-20 | 2018-06-08 | 中国恩菲工程技术有限公司 | Spray gun pipette tips and with its spray gun |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107560440A (en) | 2018-01-09 |
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