CN207472061U - Spray gun pipette tips and with its spray gun - Google Patents
Spray gun pipette tips and with its spray gun Download PDFInfo
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- CN207472061U CN207472061U CN201721213592.0U CN201721213592U CN207472061U CN 207472061 U CN207472061 U CN 207472061U CN 201721213592 U CN201721213592 U CN 201721213592U CN 207472061 U CN207472061 U CN 207472061U
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- tube
- inner tube
- spray gun
- pipette tips
- wall surface
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Abstract
The utility model discloses a kind of spray gun pipette tips and there is its spray gun, spray gun pipette tips include：Outer tube；Inner tube, inner tube are located in outer tube, and the outside wall surface of inner tube is equipped with multiple the first protrusions along its circumferentially spaced distribution, and only the internal face to outer tube limits first gas passage to the first protrusion so as to be spaced apart between the outside wall surface of inner tube and the internal face of outer tube；Central tube, central tube is located in inner tube, the outside wall surface of central tube is equipped with multiple the second protrusions along its circumferentially spaced distribution, only the internal face to inner tube limits second gas channel to second protrusion so as to be spaced apart between the outside wall surface of central tube and the internal face of inner tube, and central tube is interference fitted with inner tube.According to the spray gun pipette tips of the utility model embodiment, central tube and inner tube are arranged to separate structure and by interference fit, simple in structure, machine-shaping is convenient, of low cost.
Description
Technical field
The utility model is related to manufacturing field of equipment, more particularly, to a kind of spray gun pipette tips and with its spray gun.
Background technology
In nonferrous metallurgy field, spray gun is a kind of multiple gases such as offer oxygen, compressed air, natural gas into metallurgical furnace
Equipment, generally formed by being nested inside and outside multitube.In general, inner tube pipette tips are processed into specific shape, such as cellular tissue or
Uniformly distributed scallop hole tissue, after being inserted in outer tube, the gap of inner tube and outer tube is a kind of channel of gas, above-mentioned inner tube pipette tips
Specific shape become the channel of another gas, but the processing of traditional spray gun pipette tips is relatively difficult, cost is higher.
Utility model content
The utility model is intended to solve one of above-mentioned technical problem at least to a certain extent.
For this purpose, the utility model proposes a kind of spray gun pipette tips simple in structure, easy to process.
The utility model also proposes a kind of spray gun with above-mentioned spray gun pipette tips.
According to the spray gun pipette tips of the utility model first aspect embodiment, including：
Outer tube；Inner tube, said inner tube are located in the outer tube, and the outside wall surface of said inner tube is equipped with multiple circumferentially-spaced along its
Open the first protrusion of distribution, first protrusion only the internal face to the outer tube so that the outside wall surface of said inner tube with it is described outer
It is spaced apart between the internal face of pipe and limits first gas passage；Central tube, the central tube is located in said inner tube, in described
The outside wall surface of heart pipe is equipped with multiple the second protrusions along its circumferentially spaced distribution, and second protrusion is only interior to said inner tube
Wall surface limits second gas channel so as to be spaced apart between the outside wall surface of the central tube and the internal face of said inner tube, described
Central tube is interference fitted with said inner tube.
According to the spray gun pipette tips of the utility model embodiment, by the way that central tube and inner tube are arranged to separate structure and led to
Interference fit, simple in structure, machine-shaping is convenient, of low cost.
In addition, according to the spray gun pipette tips of the utility model embodiment, there can also be following additional technical characteristic：
One embodiment according to the present utility model, said inner tube and the outer coaxial tube and interference fit, it is multiple described
First protrusion respectively approximately along said inner tube radially extend and uniform intervals are opened in the outside wall surface of said inner tube.
One embodiment according to the present utility model, the central tube and said inner tube are coaxial, multiple second protrusions
Respectively approximately along the central tube radially extend and uniform intervals are opened in the outside wall surface of the central tube.
One embodiment according to the present utility model, the central, tubular become pipe, multiple second protrusions and institute
The outside wall surface for stating central tube is weldingly connected.
One embodiment according to the present utility model, the central tube include multiple connecting portions, multiple connecting portion edges
The circumferential direction of said inner tube, which is sequentially connected, is generally formed into pipe, and second protrusion is respectively equipped on each connecting portion.
One embodiment according to the present utility model, the connecting portion are formed as fan annular or trapezoidal.
One embodiment according to the present utility model, the connecting portion are integrally formed with the described second protrusion.
According to the spray gun of the utility model second aspect embodiment, including the spray gun pipette tips according to above-described embodiment.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 is a structure diagram of the inner tube of conventional lance pipette tips；
Fig. 2 is another structure diagram of the inner tube of conventional lance pipette tips；
Fig. 3 is the structure diagram according to the spray gun pipette tips of the utility model embodiment；
Fig. 4 is the structural representation connected according to the inner tube of the spray gun pipette tips of the utility model embodiment with central tube
Figure；
Fig. 5 is another structural representation connected according to the inner tube of the spray gun pipette tips of the utility model embodiment with central tube
Figure；
Fig. 6 is the structure diagram according to the inner tube of the spray gun pipette tips of the utility model embodiment；
Fig. 7 is a structure diagram according to the central tube of the spray gun pipette tips of the utility model embodiment；
Fig. 8 is another structure diagram according to the central tube of the spray gun pipette tips of the utility model embodiment；
Fig. 9 is the structure diagram according to the connecting portion of the spray gun pipette tips of the utility model embodiment；
Figure 10 is the flow chart according to the spray gun pipette tips processing method of the utility model embodiment.
Reference numeral：
Spray gun pipette tips 100；Outer tube 10；
Inner tube 20；First protrusion 21；
Central tube 30；Second protrusion 31；Connecting portion 32.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the present invention, it is to be appreciated that term " " center ", " on ", " under ", " vertical ", " level ",
The orientation or position relationship of the instructions such as " top ", " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " are based on side shown in the drawings
Position or position relationship are for only for ease of description the utility model and simplify description rather than instruction or imply signified device
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the utility model
Limitation.In addition, term " first ", " second " be only used for description purpose, and it is not intended that instruction or imply relative importance or
Person implies the quantity for indicating indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or hidden
Include one or more this feature containing ground.In the description of the present invention, " multiple " be meant that two or two with
On, unless otherwise specifically defined.
In the utility model unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
The utility model is present inventor based on the fact that made utility model is created.
The spray gun pipette tips inner tube and central tube of the prior art are integrally formed, and in order to ensure to supply area, the pipette tips of processing are horizontal
Usually there is certain requirement in the cavity in section, as shown in Figure 1, in option A, inner tube 1 is formed by bar using linear cutter,
The aisle space accounting of formation is larger, as shown in Fig. 2, in option b, several circular holes has been drilled on the section of inner tube 2, have been formd
Cellular tissue.Above two traditional scheme, which exists, processes the problem of time-consuming, of high cost, such as：Option A is in certain engineering reality
In example, when being taken using one pipette tips of linear cutter more than 48 machine-team, and in option b, if pipette tips length direction is more than certain
After size, punching cost is also higher, and in punching, centralized positioning is also more difficult.
Based on above-mentioned technical problem of the existing technology, present inventor grinds traditional spray gun pipette tips
Study carefully and improve, propose a kind of spray gun pipette tips and with its spray gun.
The spray gun pipette tips 100 according to the utility model embodiment are specifically described with reference to attached drawing first below.
As shown in Figures 3 to 5, according to the spray gun pipette tips 100 of the utility model embodiment include outer tube 10, inner tube 20 and in
Heart pipe 30.
Specifically, inner tube 20 is located in outer tube 10, the outside wall surface of inner tube 20 is equipped with multiple along its circumferentially spaced distribution
The first protrusion 21, the first protrusion 21 only the internal face to outer tube 10 so that outside wall surface and the outer tube 10 of inner tube 20 internal face it
Between be spaced apart and limit first gas passage, central tube 30 is located in inner tube 20, and the outside wall surface of central tube 30 is equipped with multiple along it
Second protrusion 31 of circumferentially spaced distribution, second protrusion 31 only to inner tube 20 internal face so that the outside wall surface of central tube 30 with
It is spaced apart between the internal face of inner tube 20 and limits second gas channel, central tube 30 is interference fitted with inner tube 20.
In other words, according to the spray gun pipette tips 100 of the utility model embodiment mainly by outer tube 10, inner tube 20 and central tube 30
Composition.Wherein, outer tube 10 is set in outside inner tube 20, as shown in fig. 6, inner tube 20 is equipped with multiple first protrusions 21, first is convex
Rise and be spaced apart in 21 axial direction along 20 outside wall surface of inner tube, the first protrusion 21 only internal face to outer tube 10, inner tube 20 it is outer
The internal face and the first protrusion 21 of wall surface and outer tube 10 limit multiple first gas passages jointly, a kind of gas in spray gun
It can be by being sprayed in first gas passage, inner tube 20 is set on central tube 30 and is interference fitted with central tube 30, and structure is steady
Fixed, as shown in fig. 7, the outside wall surface of central tube 30 is equipped with multiple second protrusions 31, the second protrusion 31 only supports the inner wall of inner tube 20
Face, the outside wall surface of central tube 30 and the internal face of inner tube 20 and the second protrusion 31 limit multiple second gas channels jointly,
Another gas in spray gun can be sprayed by second gas channel.
As a result, according to the spray gun pipette tips 100 of the utility model embodiment, by the way that central tube 30 and inner tube 20 are set ingredient
Body structure and by interference fit, simple in structure, machine-shaping is convenient, of low cost.
Some specific embodiments according to the present utility model, inner tube 20 are coaxially disposed with outer tube 10, and inner tube 20 and outer tube
10 interference fits, multiple first protrusions 21 respectively approximately along inner tube 20 radially extend and uniform intervals are opened in the outer of inner tube 20
On wall surface, the spacing between two neighboring first protrusion 21 is equal.The gas that the spray gun pipette tips 100 of the structure spray as a result, is more
Uniformly.
In one embodiment of the utility model, central tube 30 is coaxially disposed with inner tube 20, multiple second 31 points of protrusions
Not approximately along central tube 30 radially extend and uniform intervals are opened in the outside wall surface of central tube 30, it is two neighboring second protrusion
The distance between 31 is equal.Thus, it is possible to further improve the uniformity of the gas of the ejection of spray gun pipette tips 100.
In a specific embodiment of the utility model, central tube 30 can be pipe, and multiple second protrusions 31 are distinguished
Be formed as rectangular slab, as shown in fig. 7, the multiple second raised 31 uniform intervals are turned up the soil and are welded in the outside wall surface of central tube 30, it should
The central tube 30 of structure passes through rectangular slab and pipe welding fabrication, structural stability height.
In another specific embodiment of the utility model, central tube 30 can also be made of multiple connecting portions 32, such as
Shown in Fig. 8 and Fig. 9, the circumferential direction of multiple connecting portion 32 along inner tubes 20, which is sequentially connected, is generally formed into pipe, on each connecting portion 32
The second protrusion 31 of plate is respectively equipped with, the pipe that multiple connecting portions 32 are combined into can be pressed directly into inner tube 20 and inner tube 20
Interference fit.The central tube 30 of the structure is simple in structure, avoids complicated connection mode, and assembling is more convenient.
Wherein, connecting portion 32 can be formed as fan annular or trapezoidal, and connecting portion 32 can also form other shapes, as long as full
The multiple connecting portions 32 of foot can be formed as circular tube shaped after splicing.
One embodiment according to the present utility model, 32 and second protrusion 31 of connecting portion are integrally formed, the connection of the structure
32 and second protrusion 31 of portion not only ensure that whole stability, but also convenient formation, of low cost.
To sum up, according to the spray gun pipette tips 100 of the utility model embodiment, it is equipped with by the outside wall surface in inner tube 20 more
A first protrusion 21, the first protrusion 21 only the internal face to outer tube 10 so that outside wall surface and the outer tube 10 of inner tube 20 internal face it
Between be spaced apart and limit first gas passage, the outside wall surface of central tube 30 is equipped with multiple second protrusions 31, and the second protrusion 31 is only supported
The internal face of inner tube 20 leads to so as to be spaced apart between the outside wall surface of central tube 30 and the internal face of inner tube 20 and limit second gas
Road, central tube 30 and inner tube 20 are interference fitted, and outer tube 10 is set in outside inner tube 20, simple in structure, of low cost.
Spray gun pipette tips 100 according to above-described embodiment are included according to the spray gun of the utility model embodiment, due to according to this
The spray gun pipette tips 100 of utility model above-described embodiment have above-mentioned technique effect, therefore, according to the spray of the utility model embodiment
Rifle also has corresponding technique effect, i.e. spray gun pipette tips 100 are simple in structure, and convenient formation is of low cost.
According to the spray gun of the utility model embodiment other form and operate for those of ordinary skill in the art and
Speech is all known, is not detailed herein.
The processing method of the spray gun pipette tips 100 according to the utility model embodiment is detailed below.
As shown in Figure 10, according to the processing method of the spray gun pipette tips 100 of the utility model embodiment, include the following steps：
S1, processing inner tube 20, the outside wall surface of inner tube 20 are equipped with multiple the first protrusions 21 along its circumferentially spaced distribution；
S2, it is regarded in the requirement of gap accounting and the requirement processing of 100 overall dimensions of spray gun pipette tips according to 100 inside of spray gun pipette tips
Heart pipe 30, the outside wall surface of central tube 30 are equipped with multiple the second protrusions 31 along its circumferentially spaced distribution；
S3, central tube 30 is plugged in inner tube 20 and is interference fitted with inner tube 20；
S4, it outer tube 10 is set in 20 exterior of inner tube is made into spray gun pipette tips 100.
Specifically, in step sl, the outside wall surface of inner tube 20 is equipped with multiple along the first convex of its circumferentially-spaced distribution
21 are played, the first protrusion 21 can be formed as strip rectangular slab, and in step s 2, the processing method of central tube 30 can have more
Kind, the requirement of gap accounting and the requirement of 100 overall dimensions of spray gun pipette tips and deposited strength etc. are regarded according to 100 inside of spray gun pipette tips
Factor, the method for selecting suitable machining center pipe 30, the outside wall surface of central tube 30 process multiple along its circumferentially-spaced distribution
Second protrusion 31, the second protrusion 31 can be formed as multiple strip rectangular slabs, and in step s3, inner tube 20 is set in central tube
On 30, the inner wall of inner tube 20 is close to the outer wall of central tube 30, and inner tube 20 is connected with the interference fit of central tube 30, in step s 4,
Outer tube 10 is set in 20 exterior of inner tube and is made into rifle pipette tips.
As a result, by processing central tube 30 and inner tube 20 respectively, the outside wall surface of central tube 30 and inner tube 20 is respectively equipped with
First protrusion 21 and the second protrusion 31, inner tube 20 are set in outside central tube 30 and are interference fitted with central tube 30, and outer tube 10 is arranged
Outside inner tube 20, processing technology is simple, of low cost.
Preferably, in step sl, inner tube 20 is molded, processing side using steel pipe as blank using milling or linear cutter
Formula is simple, and operability is strong.
One embodiment according to the present utility model, in step s 2, when the second protrusion 31 is in the circumferential direction of central tube 30
Thickness, two neighboring second protrusion 31 in the outside wall surface of central tube 30 be spaced apart minimum clearance reach predetermined value when,
And under conditions of deposited strength is met, central tube 30 is formed as pipe, the multiple second protrusion 31 and the outer wall of central tube 30
Face is weldingly connected.
Another embodiment according to the present utility model, in step s 2, when the second protrusion 31 is in the circumferential direction of central tube 30
On thickness, two neighboring second protrusion 31 in the outside wall surface of central tube 30 be spaced apart minimum clearance be respectively less than predetermined value
When, and in the case where welding space, welding deformation are difficult to control or weld strength is not easy guarantee, central tube 30 can be by more
A connecting portion 32 is formed, and the circumferential direction of multiple connecting portion 32 along inner tubes 20, which is sequentially connected, is generally formed into pipe, each connecting portion 32
On be respectively equipped with the second protrusion 31, in the pipe press-in inner tube 20 that connecting portion 32 forms, utilize the extruding force of interference fit, keep
Firmly desired position and space.
In some specific embodiments of the utility model, in step s3, directly pressed after multiple connecting portions 32 are combined
Enter in inner tube 20.The assembly method is simple as a result, avoids complicated connection mode, and assembling is more convenient.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it is impossible to be construed as a limitation of the present invention, those of ordinary skill in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (8)
1. a kind of spray gun pipette tips, which is characterized in that including：
Outer tube；
Inner tube, said inner tube are located in the outer tube, and the outside wall surface of said inner tube is equipped with multiple along its circumferentially spaced distribution
First protrusion, first protrusion only supports the internal face of the outer tube so that the outside wall surface of said inner tube and the inner wall of the outer tube
It is spaced apart between face and limits first gas passage；
Central tube, the central tube are located in said inner tube, and the outside wall surface of the central tube is equipped with multiple circumferentially spaced along its
Distribution second protrusion, it is described second protrusion only to said inner tube internal face so that the outside wall surface of the central tube with it is described interior
It is spaced apart between the internal face of pipe and limits second gas channel, the central tube is interference fitted with said inner tube.
2. spray gun pipette tips according to claim 1, which is characterized in that said inner tube is matched with the outer coaxial tube and interference
Close, multiple first protrusions respectively along said inner tube radially extend and uniform intervals are opened in the outside wall surface of said inner tube
On.
3. spray gun pipette tips according to claim 1, which is characterized in that the central tube and said inner tube are coaxial, Duo Gesuo
State second protrusion respectively along the central tube radially extend and uniform intervals are opened in the outside wall surface of the central tube.
4. spray gun pipette tips according to claim 1, which is characterized in that the central, tubular becomes pipe, and multiple described the
Two protrusions and the outside wall surface of the central tube are weldingly connected.
5. spray gun pipette tips according to claim 1, which is characterized in that the central tube includes multiple connecting portions, Duo Gesuo
The circumferential direction for stating connecting portion along said inner tube, which is sequentially connected, is formed as pipe, and it is convex to be respectively equipped with described second on each connecting portion
It rises.
6. spray gun pipette tips according to claim 5, which is characterized in that the connecting portion is formed as fan annular or trapezoidal.
7. spray gun pipette tips according to claim 5, which is characterized in that the connecting portion with described second protrusion one into
Type.
8. a kind of spray gun, which is characterized in that including the spray gun pipette tips described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213592.0U CN207472061U (en) | 2017-09-20 | 2017-09-20 | Spray gun pipette tips and with its spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213592.0U CN207472061U (en) | 2017-09-20 | 2017-09-20 | Spray gun pipette tips and with its spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472061U true CN207472061U (en) | 2018-06-08 |
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ID=62269606
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721213592.0U Active CN207472061U (en) | 2017-09-20 | 2017-09-20 | Spray gun pipette tips and with its spray gun |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560440A (en) * | 2017-09-20 | 2018-01-09 | 中国恩菲工程技术有限公司 | The processing method of spray gun pipette tips, the spray gun with it and spray gun pipette tips |
-
2017
- 2017-09-20 CN CN201721213592.0U patent/CN207472061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560440A (en) * | 2017-09-20 | 2018-01-09 | 中国恩菲工程技术有限公司 | The processing method of spray gun pipette tips, the spray gun with it and spray gun pipette tips |
| CN107560440B (en) * | 2017-09-20 | 2024-04-12 | 中国恩菲工程技术有限公司 | Spray gun head, spray gun with spray gun head and processing method of spray gun head |
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