CN217991242U - Gas shielded arc welding protective sleeve nozzle - Google Patents
Gas shielded arc welding protective sleeve nozzle Download PDFInfo
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- CN217991242U CN217991242U CN202221883228.6U CN202221883228U CN217991242U CN 217991242 U CN217991242 U CN 217991242U CN 202221883228 U CN202221883228 U CN 202221883228U CN 217991242 U CN217991242 U CN 217991242U
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- flow guide
- sleeve
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Abstract
A gas shielded welding protective sleeve nozzle comprises a nozzle body, wherein a protective sleeve assembly is detachably mounted at the bottom of the nozzle body; the protective sleeve assembly comprises an installation part and a flow guide part, the installation part is detachably installed at the bottom end of the nozzle, and the flow guide part is fixedly connected to the bottom end of the installation part; the flow guide part comprises a flow guide sleeve fixedly connected to the bottom surface of the mounting part; a plurality of flow guide grooves are vertically formed in the inner wall of the flow guide sleeve along the circumferential direction; the top end and the bottom end of the guide groove respectively penetrate through the top end surface and the bottom end surface of the guide sleeve; a plurality of spoilers are fixedly connected in the diversion trench; the flow guide sleeve is communicated with the nozzle through the mounting part; the utility model discloses set up the protective sheath bottom the nozzle, can make the splash adhesion on the protective sheath, the splash adhesion when preventing to weld leads to blocking on the nozzle, and the protective sheath can be dismantled, convenient clearance and change to the condition of splashing has been reduced to a certain extent.
Description
Technical Field
The utility model relates to a gas shielded arc welds technical field, especially relates to a gas shielded arc welds protective sheath nozzle.
Background
Gas shielded welding is a welding method in which an arc between a meltable welding wire and a workpiece to be welded is continuously fed at a constant speed as a heat source to melt the welding wire and a base metal to form a molten pool and a weld. In order to obtain a good weld, the external gas is used as an arc medium and protects the molten droplets, the bath metal and the hot metal of the weld area from the harmful effects of the surrounding atmosphere.
The prior gas shielded welding nozzle is not provided with a protective sleeve, and for the carbon dioxide shielded welding with larger splashing, the generated splashes are easy to adhere in the nozzle, so that the nozzle is blocked, the welding effect is influenced, and the cleaning is difficult; in addition, the inner hole of the nozzle is generally in a straight cylinder shape, so that gas sprayed out of the nozzle vertically downwards impinges on the welding base material, and thus the gas sprayed out of the nozzle close to the middle part can diffuse around when impinging on the base material, but the downward gas flow of the outer layer can form a circle of air wall to prevent the internal gas from diffusing around and impacting with each other, so that the gas flow is relatively turbulent, and the reason for serious splashing is also one.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas shielded welding protective sleeve nozzle, to solve the problems in the prior art described above.
A gas shielded welding protective sleeve nozzle comprises a nozzle body, wherein a protective sleeve assembly is detachably mounted at the bottom of the nozzle body;
the protective sleeve assembly comprises an installation part and a flow guide part, the installation part is detachably installed at the bottom end of the nozzle, and the flow guide part is fixedly connected to the bottom end of the installation part;
the flow guide part comprises a flow guide sleeve fixedly connected to the bottom surface of the mounting part; a plurality of flow guide grooves are vertically formed in the inner wall of the flow guide sleeve along the circumferential direction; the top end and the bottom end of the guide groove respectively penetrate through the top end surface and the bottom end surface of the guide sleeve; a plurality of spoilers are fixedly connected in the diversion trench; the flow guide sleeve is communicated with the nozzle through the mounting part.
Preferably, the mounting part comprises a mounting sleeve sleeved on the outer wall of the nozzle, the top of the inner wall of the mounting sleeve is provided with an internal thread, and the outer wall of the nozzle is provided with an external thread; the internal thread is matched with the external thread; the bottom end face of the mounting sleeve is fixedly connected with the top end face of the flow guide sleeve.
Preferably, the first and second liquid crystal materials are, an inner sheath is formed inwards at the bottom end of the mounting sleeve; the inner sheath extends upwardly into the mounting sleeve; the distance from the inner wall of the mounting sleeve to the inner sheath is greater than the thickness of the peripheral wall of the nozzle.
Preferably, a flow guide ring is fixedly connected to the top end face of the inner sheath, and the top end of the inner wall of the flow guide ring extends obliquely upwards towards the outer side and coincides with the top end of the outer wall of the flow guide ring.
Preferably, the inner diameter of the inner sheath is equal to the diameter of a circle where the bottoms of the guide grooves are located.
Preferably, the middle part of the nozzle is provided with a contact nozzle; the bottom end of the contact tube is defined within the inner sheath.
The utility model discloses the following technical effects are achieved:
1. the utility model discloses set up the protective sheath bottom the nozzle, can make the splash adhesion on the protective sheath, splash adhesion when preventing to weld leads to blocking on the nozzle, and the protective sheath is detachable gets off, convenient clearance and change.
2. The utility model discloses can make the interior spun gas velocity of flow of nozzle inconsistent to let the outer airflow velocity of flow slow, the airflow velocity of flow of inlayer is fast, makes the air current go out to diffusing all around more easily, and the air current is more stable, has reduced the condition of splashing to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 shows the present invention type 1,base:Sub>A-base:Sub>A cross-section.
Wherein:
1. a nozzle; 2. a flow sleeve; 3. a diversion trench; 4. a spoiler; 5. installing a sleeve; 6. an internal thread; 7. an external thread; 8. an inner sheath; 9. a flow guide ring; 10. a contact tip.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to the attached drawings 1-3, the gas shielded welding protective sleeve nozzle comprises a nozzle 1, wherein a protective sleeve assembly is detachably mounted at the bottom of the nozzle 1;
the protective sleeve assembly comprises an installation part and a flow guide part, the installation part is detachably installed at the bottom end of the nozzle 1, and the flow guide part is fixedly connected to the bottom end of the installation part;
the flow guide part comprises a flow guide sleeve 2 fixedly connected to the bottom surface of the mounting part; a plurality of flow guide grooves 3 are vertically formed in the inner wall of the flow guide sleeve 2 along the circumferential direction; the top end and the bottom end of the guide groove 3 respectively penetrate through the top end surface and the bottom end surface of the guide sleeve 2; a plurality of spoilers 4 are fixedly connected in the diversion trench 3; the guide sleeve 2 is communicated with the nozzle 1 through the mounting part.
The diversion trench 3 is vertically arranged, two ends of the diversion trench penetrate through the end face of the diversion sleeve 2, and the spoiler 4 is perpendicular to the axis of the diversion sleeve 2 and is embedded into the diversion trench 3; the bottom end of the outer wall of the flow guide sleeve 2 extends inwards, and the outer wall of the flow guide sleeve 2 forms an inverted circular truncated cone shape so as to be matched with the bevel of the groove.
The working principle is as follows: after the gas in the nozzle 1 is sprayed out, the gas flows into the flow guide sleeve 2, the flow guide groove 3 formed in the inner wall of the flow guide sleeve 2 divides the part, close to the flow guide groove 3, of the gas flow in the nozzle 1 into a plurality of small gas flows, the flow velocity of the small gas flows is reduced when the small gas flows pass through the flow baffle plate 4, so that the conditions that the flow velocity of the gas flow in the middle is high and the flow velocity of the gas flow in the outer layer is low are formed, after the gas flow with the high flow velocity impacts the surface of the base material, the impact force generated towards the periphery is larger than the impact force generated after the gas flow with the low flow velocity impacts the surface of the base material, and in addition, the gas with the low flow velocity is easier to change the direction, so that the gas flow in the outer layer is naturally blown to the outside by the gas flow in the inner part, the condition that the gas flow is disordered due to mutual impact is avoided, the influence of the gas flow on splashed objects is reduced under the more stable gas flow, and the splashing degree can be reduced to a certain extent; the diversion grooves 3 are divided into a plurality of diversion grooves, so that airflow turbulence is not easy to occur in advance when the airflow passes through the spoiler 4, and the airflow can flow in the diversion sleeve 2 more stably.
In another embodiment of this application, vertically seted up a plurality of through-hole on the spoiler 4, perhaps spoiler 4 is the wire net, both can slow down the air current velocity of flow, can also increase the permeability, increases the stability of air current.
According to a further optimized scheme, the mounting part comprises a mounting sleeve 5 sleeved on the outer wall of the nozzle 1, an internal thread 6 is formed at the top of the inner wall of the mounting sleeve 5, and an external thread 7 is formed on the outer wall of the nozzle 1; the internal thread 6 is matched with the external thread 7; the bottom end surface of the mounting sleeve 5 is fixedly connected with the top end surface of the flow guide sleeve 2.
Installation sleeve 5 and nozzle 1 can be in the same place through internal thread 6 and external screw thread 7 threaded connection to can dismantle, after having adhered more splash in the guide sleeve 2, can dismantle installation sleeve 5 and guide sleeve 2 together and wash, can also change the continuation of going on newly simultaneously and carry out weldment work, convenient and fast can not delay work.
In a further optimized scheme, an inner sheath 8 is formed inwards at the bottom end of the mounting sleeve 5; the inner sheath 8 extends upwardly into the mounting sleeve 5; the distance from the inner wall of the mounting sleeve 5 to the inner sheath 8 is greater than the thickness of the peripheral wall of the nozzle 1.
The inner sheath 8 is limited in the installation sleeve 5, the bottom end of the inner sheath 8 is fixedly connected with the bottom end of the installation sleeve 5, and the inner sheath 8 and the installation sleeve 5 are arranged coaxially; the inner sheath 8 and the mounting sleeve 5 can be integrally processed and formed; the inner sheath 8 can effectually prevent splash on the nozzle 1 inner wall bottom adhesion, and splash only can adhere to the inner sheath 8, and the bottom perisporium of nozzle 1 can stretch into between installation sleeve 5 and the inner sheath 8 during the installation.
In a further optimized scheme, a guide ring 9 is fixedly connected to the top end face of the inner sheath 8, and the top end of the inner wall of the guide ring 9 extends obliquely upwards towards the outer side and is overlapped with the top end of the outer wall of the guide ring 9.
The guide ring 9 can reduce the resistance to the air flow, so that the air flow smoothly flows into the guide sleeve 2 from the nozzle 1.
The inner diameter of the inner sheath 8 is equal to the diameter of a circle where the bottoms of the flow guide grooves 3 are located; thus, the outer layer airflow flowing out of the inner sheath 8 flows into the diversion trench 3 more naturally, and the airflow fluctuation caused by the aperture change is avoided.
In a further optimized scheme, the middle part of the nozzle 1 is provided with a contact tube 10; the bottom end of the contact tip 10 is defined within the inner sheath 8; the contact tip 10 is an essential part in the prior art and gas shielded welding, and is installed in the same manner as the conventional art to energize a welding wire and thereby generate an arc; the bottom end of the contact tip 10 is defined within the inner sheath 8, which further prevents the welding wire from melting and splashing onto the inner wall of the nozzle 1.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only described in the preferred embodiments of the present invention, but not limited to the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (6)
1. A gas shielded welding protective sleeve nozzle, comprising: a nozzle (1) is arranged on the outer side of the shell, the bottom of the nozzle (1) is detachably provided with a protective sleeve assembly;
the protective sleeve assembly comprises an installation part and a flow guide part, the installation part is detachably installed at the bottom end of the nozzle (1), and the flow guide part is fixedly connected to the bottom end of the installation part;
the flow guide part comprises a flow guide sleeve (2) fixedly connected to the bottom surface of the mounting part; a plurality of guide grooves (3) are vertically arranged on the inner wall of the guide sleeve (2) along the circumferential direction; the top end and the bottom end of the guide groove (3) respectively penetrate through the top end surface and the bottom end surface of the guide sleeve (2); a plurality of spoilers (4) are fixedly connected in the diversion trench (3); the flow guide sleeve (2) is communicated with the nozzle (1) through the mounting part.
2. A gas shielded welding shield nozzle as defined in claim 1, wherein: the mounting part comprises a mounting sleeve (5) sleeved on the outer wall of the nozzle (1), an internal thread (6) is formed at the top of the inner wall of the mounting sleeve (5), and an external thread (7) is formed on the outer wall of the nozzle (1); the internal thread (6) is matched with the external thread (7); the bottom end face of the mounting sleeve (5) is fixedly connected with the top end face of the flow guide sleeve (2).
3. A gas welding shield tip as recited in claim 2, wherein: an inner sheath (8) is formed inwards at the bottom end of the mounting sleeve (5); the inner sheath (8) extends upwards into the mounting sleeve (5); the distance from the inner wall of the mounting sleeve (5) to the inner sheath (8) is greater than the thickness of the peripheral wall of the nozzle (1).
4. A gas shielded welding shield nozzle as defined in claim 3, wherein: the top end face of the inner sheath (8) is fixedly connected with a flow guide ring (9), and the top end of the inner wall of the flow guide ring (9) extends obliquely upwards towards the outer side and coincides with the top end of the outer wall of the flow guide ring (9).
5. A gas shielded welding shield nozzle as defined in claim 3, wherein: the inner diameter of the inner sheath (8) is equal to the diameter of a circle where the bottoms of the flow guide grooves (3) are located.
6. A gas shielded welding shield nozzle as defined in claim 3, wherein: the middle part of the nozzle (1) is provided with a contact nozzle (10); the bottom end of the contact tip (10) is defined within the inner sheath (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221883228.6U CN217991242U (en) | 2022-07-21 | 2022-07-21 | Gas shielded arc welding protective sleeve nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221883228.6U CN217991242U (en) | 2022-07-21 | 2022-07-21 | Gas shielded arc welding protective sleeve nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217991242U true CN217991242U (en) | 2022-12-09 |
Family
ID=84317147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221883228.6U Active CN217991242U (en) | 2022-07-21 | 2022-07-21 | Gas shielded arc welding protective sleeve nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217991242U (en) |
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2022
- 2022-07-21 CN CN202221883228.6U patent/CN217991242U/en active Active
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