CN213134408U - Metal material welding auxiliary device - Google Patents
Metal material welding auxiliary device Download PDFInfo
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- CN213134408U CN213134408U CN202021775602.1U CN202021775602U CN213134408U CN 213134408 U CN213134408 U CN 213134408U CN 202021775602 U CN202021775602 U CN 202021775602U CN 213134408 U CN213134408 U CN 213134408U
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Abstract
The utility model relates to the technical field of welding auxiliary devices, in particular to a metal material welding auxiliary device; the height adjusting structure is added, the phenomenon that the smoke suction position is fixed is reduced, the smoke suction position is adjusted according to the actual condition, and the use reliability of the equipment is improved; including the operation panel, the fixed operation box that is provided with in operation panel top, the opening inner cup is installed and is provided with the shutter, the operation box top is provided with the air exhauster, still including collecting the lid, two sets of first connecting pipe output all communicate and be provided with flexible pipe, two sets of flexible pipe output all communicate and be provided with the second connecting pipe, two sets of second connecting pipe output intercommunication are provided with the three-way pipe, the fixed first connecting plate that is provided with in chamber top, first connecting plate left end and right-hand member all are provided with first gear, left side second connecting plate right-hand member and right side second connecting plate left end all are provided with first rack plate.
Description
Technical Field
The utility model relates to a welding auxiliary device's technical field especially relates to a metal material welding auxiliary device.
Background
As is well known, the metal material welding auxiliary device is a device used in the metal material welding process and used for treating smoke generated in the welding process, can reduce the influence of the smoke on the operating environment, and is widely used in the welding field; the conventional metal material welding auxiliary device comprises an operation table, wherein an operation box is fixedly arranged at the top end of the operation table, a cavity is arranged in the operation box, a through hole is formed in the front end of the operation box and communicated with the front end of the cavity, a stop door is arranged in the through hole, and an exhaust fan is arranged at the top end of the operation box; when the metal material welding auxiliary device is used, metal materials are placed in the operation box and are welded by welding personnel, and smoke generated in the welding process is outwards transmitted under the action of the exhaust fan; this kind of metal material welding auxiliary device discovers in using, and the position is absorb to the flue gas is comparatively fixed, and the regulation of difficult carrying on the height, and the position that the flue gas produced absorbs the position distance with the flue gas and is far away, and at the in-process of flue gas transmission, flue gas transmission distance is longer, causes the influence to welding personnel's operation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an increase altitude mixture control structure reduces the flue gas and absorbs the phenomenon of rigidity, absorbs the position to the flue gas according to actual conditions and adjusts, improve equipment's the metal material welding auxiliary device of use reliability.
The utility model discloses a metal material welding auxiliary device, including the operation panel, the operation panel top is fixed and is provided with the control box, is provided with the chamber in the control box, and the control box front end is provided with the opening, and the opening communicates with the chamber front end, and the opening inner cup is provided with the stop gate, and the operation panel top is provided with the air exhauster; the collecting cover is arranged at the upper side of the cavity, first connecting pipes are respectively arranged at the left side and the right side of the top end of the collecting cover, the input ends of two groups of first connecting pipes are respectively communicated with the left side and the right side inside the collecting cover, the output ends of two groups of first connecting pipes are respectively communicated with telescopic pipes, the output ends of two groups of telescopic pipes are respectively communicated with second connecting pipes, the left side and the right side of the top end of the operation box are respectively provided with first connecting holes, the top ends of two groups of second connecting pipes respectively penetrate through the two groups of first connecting holes and are respectively connected with the inner walls of the two groups of first connecting holes, the output ends of the two groups of second connecting pipes are communicated with a three-way pipe, the two groups of input ends of the three-way pipe are respectively communicated with the output ends of the two groups of, first connecting plate left end and right-hand member all are provided with first gear, and left side second connecting plate right-hand member and right side second connecting plate left end all are provided with first rack board, and two sets of first gears respectively with two sets of first rack board meshing contact, two sets of second connecting plate bottoms all with collect and cover top left side and top right side and be connected.
The utility model discloses a metal material welding auxiliary device, first connecting plate left end and right-hand member all are provided with the recess, two sets of first gears are rotatable respectively in setting up and two sets of recesses, two sets of first gear front ends and the equal fixed pivot that is provided with in rear end, two sets of pivot front ends in front side and the two sets of pivot rear ends in rear side respectively with two sets of recess front ends and rear end rotatable coupling, first connecting plate front end left side and front end right side all are provided with the second gear, two sets of pivot front ends in front side are connected with two sets of second gear rear ends respectively after wearing first connecting plate respectively, left side second gear right-hand member and right side second gear left end meshing, first connecting plate rear end left side is provided with servo motor, the servo motor output is connected with left rear side pivot rear end.
The utility model discloses a metal material welding auxiliary device still includes two sets of first gag lever posts and two sets of second gag lever posts, and two sets of first gag lever posts are fixed respectively and are set up in chamber top left side and top right side, and two sets of first gag lever posts bottom all is provided with the spacing groove, and two sets of spacing inslots all are provided with the stopper, and two sets of second gag lever posts are fixed respectively and are set up in two sets of stopper bottoms, and two sets of second gag lever posts bottom is connected with collection lid top left side and top right side respectively.
The utility model discloses a metal material welding auxiliary device, operation box left side front side and left rear side all are provided with the second connecting hole, all be provided with the third gear in two sets of second connecting holes, two sets of third gear front ends and rear end respectively with two sets of second connecting hole front ends and rear end rotatable coupling, shutter rear end left side and rear end right side all are provided with the movable plate, left side movable plate left end and right side movable plate right-hand member all fix and are provided with second rack board, left side third gear right-hand member and right side second gear left end respectively with left side second rack board left end and right side second rack board right-hand member meshing contact.
The utility model discloses a metal material welding auxiliary device, operation box left end and right-hand member are all fixed and are provided with first fixed plate, two sets of first fixed plate front ends are all fixed and are provided with the second fixed plate, two sets of second fixed plate front sides all are provided with the third connecting hole, all be provided with the cardboard in two sets of third connecting holes, left side cardboard right-hand member and right side cardboard left end respectively with left side third gear left side tooth and right side third gear right side tooth joint, left side second fixed plate left end and right side second fixed plate right-hand member are all fixed and are provided with the third fixed plate, left side third fixed plate right-hand member and right side third fixed plate left end are all fixed and are provided with the spring, left side spring right-hand member and right side spring left end are connected with left side second fixed plate left end and right side second fixed plate right-.
The utility model discloses a metal material welding auxiliary device, opening left end and right-hand member all are provided with the slide, all are provided with the slider in two sets of slides, and left side slider right-hand member and right side slider left end are connected with shutter left end downside and right-hand member downside respectively.
The utility model discloses a metal material welding auxiliary device, shutter front end downside is fixed and is provided with the handle.
The utility model discloses a metal material welding auxiliary device, operation panel bottom left front side, left rear side, right front side and right rear side are all fixed and are provided with the landing leg.
Compared with the prior art, the beneficial effects of the utility model are that: when two sets of first gears carry out the pivoted, under the meshing effect of tooth, two sets of first rack boards remove downwards thereupon, two sets of second connecting plate remove downwards thereupon, when two sets of second connecting plate remove downwards, collect the lid and remove downwards thereupon, under the effect of air exhauster, the flue gas is exported from the air exhauster output after collecting the lid, first connecting pipe, flexible pipe, second connecting pipe and three-way pipe, two sets of first gears of antiport, when two sets of first gears rotate, two sets of first rack boards remove upwards thereupon, collect the lid and remove upwards thereupon, can realize collecting the removal of the upper and lower direction of lid with this, reduce the flue gas and absorb the fixed phenomenon of position, absorb the position to the flue gas and adjust according to actual conditions, improve equipment's use reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a plan view of a connecting structure of the operation box and the third gear;
FIG. 3 is a top view of the connection structure of the servo single machine and the first gear;
FIG. 4 is an enlarged view of portion A of FIG. 1;
FIG. 5 is an enlarged view of portion B of FIG. 1;
FIG. 6 is an enlarged view of portion C of FIG. 2;
in the drawings, the reference numbers: 1. an operation table; 2. an operation box; 3. a shutter; 4. an exhaust fan; 5. a collection cover; 6. a first connecting pipe; 7. a telescopic pipe; 8. a second connecting pipe; 9. a three-way pipe; 10. a first connecting plate; 11. a first gear; 12. a second connecting plate; 13. a rotating shaft; 14. a second gear; 15. a servo motor; 16. a first limit rod; 17. a second limiting rod; 18. a limiting block; 19. a third gear; 20. moving the plate; 21. a second rack plate; 22. a first fixing plate; 23. a second fixing plate; 24. clamping a plate; 25. a third fixing plate; 26. a spring; 27. a slideway; 28. a slider; 29. a handle; 30. and (7) supporting legs.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, the metal material welding auxiliary device of the present invention comprises an operation table 1, an operation box 2 is fixedly arranged on the top end of the operation table 1, a cavity is arranged in the operation box 2, the front end of the operation box 2 is provided with an opening, the opening is communicated with the front end of the cavity, a shutter 3 is arranged in the opening, and an exhaust fan 4 is arranged on the top end of the operation box 2; the device also comprises a collecting cover 5, the collecting cover 5 is arranged on the upper side of the cavity, the left side and the right side of the top end of the collecting cover 5 are respectively provided with a first connecting pipe 6, the input ends of two groups of first connecting pipes 6 are respectively communicated with the left side and the right side inside the collecting cover 5, the output ends of two groups of first connecting pipes 6 are respectively communicated with a telescopic pipe 7, the output ends of two groups of telescopic pipes 7 are respectively communicated with a second connecting pipe 8, the left side and the right side of the top end of the operation box 2 are respectively provided with a first connecting hole, the top ends of two groups of second connecting pipes 8 respectively penetrate through the two groups of first connecting holes and are respectively connected with the inner walls of the two groups of first connecting holes, the output ends of two groups of second connecting pipes 8 are communicated with a three-way pipe 9, the two groups, the left end and the right end of the first connecting plate 10 are both provided with second connecting plates 12, the left end and the right end of the first connecting plate 10 are both provided with first gears 11, the right end of the left second connecting plate 12 and the left end of the right second connecting plate 12 are both provided with first rack plates, two groups of first gears 11 are respectively in meshing contact with the two groups of first rack plates, and the bottom ends of the two groups of second connecting plates 12 are both connected with the left side of the top end and the right side of the top end of the collecting cover 5; when two sets of first gears carry out the pivoted, under the meshing effect of tooth, two sets of first rack boards remove downwards thereupon, two sets of second connecting plate remove downwards thereupon, when two sets of second connecting plate remove downwards, collect the lid and remove downwards thereupon, under the effect of air exhauster, the flue gas is exported from the air exhauster output after collecting the lid, first connecting pipe, flexible pipe, second connecting pipe and three-way pipe, two sets of first gears of antiport, when two sets of first gears rotate, two sets of first rack boards remove upwards thereupon, collect the lid and remove upwards thereupon, can realize collecting the removal of the upper and lower direction of lid with this, reduce the flue gas and absorb the fixed phenomenon of position, absorb the position to the flue gas and adjust according to actual conditions, improve equipment's use reliability.
The utility model discloses a metal material welding auxiliary device, first connecting plate 10 left end and right-hand member all are provided with the recess, two sets of first gears 11 are rotatable respectively and are set up with two sets of recesses in, two sets of first gears 11 front ends and rear end all fix and are provided with pivot 13, two sets of pivot 13 front ends of front side and two sets of pivot 13 rear ends of rear side are respectively with two sets of recess front ends and rear end rotatable coupling, first connecting plate 10 front end left side and front end right side all are provided with second gear 14, two sets of pivot 13 front ends of front side are connected with two sets of second gear 14 rear ends respectively after wearing first connecting plate 10 respectively, left side second gear 14 right-hand member and the left end meshing of right side second gear 14, first connecting plate 10 rear end left side is provided with servo motor 15, servo motor 15 output end is connected with left rear side pivot 13 rear end; servo motor drives the left side second gear and rotates, and under the meshing, the right side second gear rotates thereupon, and two sets of second gear pivoted simultaneously, under the linkage effect of pivot, two sets of first gears rotate thereupon, and when second servo motor antiport, two sets of first gears antiport thereupon to this forward and the antiport that realizes two sets of first gears, with this to the regulation of collecting the upper and lower direction of lid.
The utility model discloses a metal material welding auxiliary device, still include two sets of first gag lever posts 16 and two sets of second gag lever posts 17, two sets of first gag lever posts 16 are fixed respectively in chamber top left side and top right side, two sets of first gag lever posts 16 bottoms all are provided with the spacing groove, two sets of spacing inslot all are provided with stopper 18, two sets of second gag lever posts 17 are fixed respectively in two sets of stopper 18 bottoms, two sets of second gag lever posts 17 bottoms are connected with collection lid 5 top left side and top right side respectively; in the moving process of the upper and lower direction of the collecting cover, the two sets of limiting blocks respectively move in the upper and lower direction from the two sets of limiting grooves, the two sets of second limiting rods move in the upper and lower direction, and the two sets of first limiting rods and the two sets of second limiting rods can respectively provide limiting for the up-and-down movement of the collecting cover, so that the use reliability of the device is improved.
The utility model discloses a metal material welding auxiliary device, operation box 2 left front side and left rear side all are provided with the second connecting hole, all be provided with third gear 19 in two sets of second connecting holes, two sets of third gear 19 front ends and rear end respectively with two sets of second connecting hole front ends and rear end rotatable coupling, shutter 3 rear end left side and rear end right side all are provided with movable plate 20, left side movable plate 20 left end and right side movable plate 20 right-hand member all fixed are provided with second rack plate 21, left side third gear 19 right-hand member and right side second gear 14 left end respectively with left side second rack plate 21 left end and right side second rack plate 21 right-hand member meshing contact; when the shutter is opened, the shutter moves upwards, and under the meshing action of the third gear and the second rack plate, the shutter moves upwards along with the third gear, so that the stability of the upward movement of the shutter can be improved.
The utility model discloses a metal material welding auxiliary device, operation box 2 left end and right-hand member all fixedly are provided with first fixed plate 22, two sets of first fixed plate 22 front ends all fixedly are provided with second fixed plate 23, two sets of second fixed plate 23 front sides all are provided with the third connecting hole, all be provided with cardboard 24 in two sets of third connecting holes, left side cardboard 24 right-hand member and right side cardboard 24 left end respectively with left side third gear 19 left side tooth and right side third gear 19 right side tooth joint, left side second fixed plate 23 left end and right side second fixed plate 23 right-hand member all fixedly are provided with third fixed plate 25, left side third fixed plate 25 right-hand member and right side third fixed plate 25 left end all fixedly are provided with spring 26, left side spring 26 right-hand member and right side spring 26 left end respectively with left side second fixed plate 23 left end and right side second fixed plate 23 right-hand member connection; when the shutter upwards moves to a certain position, under the action of the spring, the two sets of third fixing plates can clamp the third gears, the two sets of third gears are fixed, the phenomenon that the two sets of third gears rotate automatically is reduced, the phenomenon that the shutter downwards moves under the action of gravity is reduced, and the use reliability of the device is improved.
The utility model discloses a metal material welding auxiliary device, opening left end and right-hand member all are provided with slide 27, all are provided with slider 28 in two sets of slide 27, and left side slider 28 right-hand member and right side slider 28 left end are connected with shutter 3 left end downside and right-hand member downside respectively; when the stop door moves up and down, the sliding block can move up and down in the sliding way, and the moving stability of the stop door is improved.
The utility model discloses a metal material welding auxiliary device, a handle 29 is fixedly arranged at the lower side of the front end of a stop door 3; when the shutter is moved, the shutter can be moved by the handle.
The utility model discloses a metal material welding auxiliary device, the left front side, the left back side, the right front side and the right back side of the bottom end of an operation table 1 are all fixedly provided with supporting legs 30; the landing leg can support equipment, improves equipment's stability.
The utility model discloses a metal material welding auxiliary device, when using, when welding, open the shutter, at this moment through handle with shutter upwards move, when opening shutter, upwards move the shutter, under the meshing effect of third gear and second rack board, shutter upwards moves along with it, when shutter carries out the removal of direction from top to bottom, the slider can carry out the removal of direction from top to bottom in the slide, when shutter upwards moves to a certain position, under the effect of spring, two sets of third fixed plates can carry out the joint to the third gear, fix two sets of third gear, reduce the phenomenon that two sets of third gear rotate by oneself, in addition, servo motor drives left side second gear and rotates, under the meshing effect, right side second gear rotates along with it, when two sets of second gear rotate, under the connecting effect of pivot, two groups of first gears rotate along with the first gears, two groups of first gears rotate along with the first gears in a reverse direction, two groups of first rack plates move downwards along with the first gears while the two groups of first gears rotate, two groups of second connecting plates move downwards along with the second gears under the meshing action of teeth, two groups of second connecting plates move downwards, a collecting cover moves downwards along with the second gears while the two groups of second connecting plates move downwards, smoke passes through the collecting cover, a first connecting pipe, a telescopic pipe, a second connecting pipe and a three-way pipe and is output from the output end of the exhaust fan under the action of the exhaust fan, two groups of first gears rotate in a reverse direction, two groups of first rack plates move upwards along with the first gears while the two groups of first gears rotate, the collecting cover moves upwards along with the collecting cover, so that the up-and down movement of the collecting cover, the position is absorbed to the flue gas according to actual conditions and is adjusted, and at the removal in-process of collecting the upper and lower direction of lid, the removal of direction about two sets of stoppers carry out from two sets of spacing inslots respectively, and the removal of direction about two sets of second gag lever posts carry out thereupon, and the setting of two sets of first gag lever posts and two sets of second gag lever posts can provide spacingly for reciprocating of collecting the lid respectively.
The metal material welding auxiliary device of the utility model has the advantages that the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the metal material welding auxiliary device can be implemented as long as the beneficial effects can be achieved; and the servo motor is provided with a control module and an electric wire, and can be used after being plugged, without changing the internal structure.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A metal material welding auxiliary device comprises an operation table (1), wherein an operation box (2) is fixedly arranged at the top end of the operation table (1), a cavity is arranged in the operation box (2), a through hole is formed in the front end of the operation box (2), the through hole is communicated with the front end of the cavity, a stop door (3) is arranged in the through hole in an inner cover, and an exhaust fan (4) is arranged at the top end of the operation box (2); the device is characterized by also comprising a collecting cover (5), wherein the collecting cover (5) is arranged on the upper side of the cavity, the left side and the right side of the top end of the collecting cover (5) are respectively provided with a first connecting pipe (6), the input ends of two groups of first connecting pipes (6) are respectively communicated with the left side and the right side of the inner part of the collecting cover (5), the output ends of two groups of first connecting pipes (6) are respectively communicated with a telescopic pipe (7), the output ends of two groups of telescopic pipes (7) are respectively communicated with a second connecting pipe (8), the left side and the right side of the top end of the operation box (2) are respectively provided with a first connecting hole, the top ends of two groups of second connecting pipes (8) respectively penetrate through two groups of first connecting holes and are respectively connected with the inner walls of the two groups of first connecting holes, the output ends of two groups of second connecting pipes, the input end of an exhaust fan (4) is communicated with the output end of a three-way pipe (9), a first connecting plate (10) is fixedly arranged at the top end of a cavity, second connecting plates (12) are arranged at the left end and the right end of the first connecting plate (10), first gears (11) are arranged at the left end and the right end of the first connecting plate (10), first rack plates are arranged at the right end of the left second connecting plate (12) and the left end of the right second connecting plate (12), the two sets of first gears (11) are in meshing contact with the two sets of first rack plates respectively, and the bottoms of the two sets of second connecting plates (12) are connected with the left side and the right side of the top end of a collecting.
2. The welding auxiliary device for metal materials according to claim 1, wherein the left end and the right end of the first connecting plate (10) are provided with grooves, two sets of first gears (11) are respectively rotatably arranged in the two sets of grooves, the front ends and the rear ends of the two sets of first gears (11) are respectively and fixedly provided with rotating shafts (13), the front ends and the rear ends of the front two sets of rotating shafts (13) and the rear ends of the rear two sets of rotating shafts (13) are respectively and rotatably connected with the front ends and the rear ends of the two sets of grooves, the left side and the right side of the front end of the first connecting plate (10) are respectively provided with second gears (14), the front ends of the front two sets of rotating shafts (13) are respectively connected with the rear ends of the two sets of second gears (14) after penetrating through the first connecting plate (10), the right end of the left side second gear (14) is engaged with the left end of the right side second gear (14), the left side, the output end of the servo motor (15) is connected with the rear end of the left rear rotating shaft (13).
3. The metal material welding auxiliary device of claim 2, further comprising two sets of first limiting rods (16) and two sets of second limiting rods (17), wherein the two sets of first limiting rods (16) are respectively and fixedly arranged on the left side of the top end and the right side of the top end of the cavity, limiting grooves are respectively arranged at the bottom ends of the two sets of first limiting rods (16), limiting blocks (18) are respectively arranged in the two sets of limiting grooves, the two sets of second limiting rods (17) are respectively and fixedly arranged at the bottom ends of the two sets of limiting blocks (18), and the bottom ends of the two sets of second limiting rods (17) are respectively connected with the left side of the top end and the right side of the top end of the collecting cover (.
4. The welding auxiliary device for the metal materials as claimed in claim 3, wherein the operation box (2) is provided with second connecting holes at the front left side and the rear left side, two sets of second connecting holes are provided with third gears (19) therein, the front ends and the rear ends of the two sets of third gears (19) are rotatably connected with the front ends and the rear ends of the two sets of second connecting holes respectively, the shutter (3) is provided with moving plates (20) at the left side and the right side of the rear end, the left end of the left moving plate (20) and the right end of the right moving plate (20) are fixedly provided with second rack plates (21), and the right end of the left third gear (19) and the left end of the right second gear (14) are respectively in meshing contact with the left end of the left second rack plate (21) and the right end of the right second rack plate (21).
5. The metal material welding auxiliary device according to claim 4, wherein the left end and the right end of the operation box (2) are both fixedly provided with a first fixing plate (22), the front ends of the two groups of first fixing plates (22) are both fixedly provided with a second fixing plate (23), the front sides of the two groups of second fixing plates (23) are both provided with third connecting holes, two groups of third connecting holes are both internally provided with clamping plates (24), the right end of the left clamping plate (24) and the left end of the right clamping plate (24) are respectively clamped with the left side teeth of the left third gear (19) and the right side teeth of the right third gear (19), the left end of the left second fixing plate (23) and the right end of the right second fixing plate (23) are both fixedly provided with third fixing plates (25), the right end of the left third fixing plate (25) and the left end of the right third fixing plate (25) are both fixedly provided with springs (26), and the right end of the left spring (26) and the left end of the right spring (26) are respectively and the left end The right end of the fixed plate (23) is connected.
6. A metal material welding auxiliary device of claim 5, characterized in that, the opening left end and right end are provided with slide ways (27), slide blocks (28) are arranged in the two sets of slide ways (27), and the right end of the left slide block (28) and the left end of the right slide block (28) are respectively connected with the lower side of the left end and the lower side of the right end of the stop door (3).
7. A welding aid for metallic materials according to claim 6, characterized in that a handle (29) is fixedly arranged on the underside of the front end of the shutter (3).
8. A welding assistance device for metal materials according to claim 7, characterized in that the bottom left front side, left rear side, right front side and right rear side of the operation table (1) are fixedly provided with legs (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775602.1U CN213134408U (en) | 2020-08-14 | 2020-08-14 | Metal material welding auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775602.1U CN213134408U (en) | 2020-08-14 | 2020-08-14 | Metal material welding auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213134408U true CN213134408U (en) | 2021-05-07 |
Family
ID=75739474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021775602.1U Active CN213134408U (en) | 2020-08-14 | 2020-08-14 | Metal material welding auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213134408U (en) |
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2020
- 2020-08-14 CN CN202021775602.1U patent/CN213134408U/en active Active
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