CN218311394U

CN218311394U - Arc welding protection device

Info

Publication number: CN218311394U
Application number: CN202221540748.7U
Authority: CN
Inventors: 秦奇奇
Original assignee: Qingdao Haite Power Supply Equipment Co ltd
Current assignee: Qingdao Haite Power Supply Equipment Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-01-17
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses an arc welding protection device, including the fixed slot, the inner chamber of fixed slot is close to top department and is equipped with the fly leaf, just fly leaf bottom intermediate position department is equipped with the support arm, just the outside of support arm is equipped with the frame, the utility model discloses a set up fixture, through the mutually supporting between screens gear, knob, rolling gear, carriage release lever, cam, belt, montant, curb plate, push rod, first spring, stopper, first rack plate, rectangular plate, transfer line, initiative conical gear, driven conical gear, loose gear, second rack plate, locating piece and these parts of planchet, be convenient for carry out the centre gripping to the metal sheet and fix, improve the effect of using, the utility model discloses a set up adjustment mechanism, through threaded rod, connecting rod, rectangular block and commentaries on classics mutually supporting between these parts, be convenient for highly adjust the metal tungsten needle to make things convenient for the expansion of weldment work.

Description

Arc welding protection device

Technical Field

The utility model relates to an electric arc welding connects the technical field who reports and protect, specifically is an electric arc welding protection device.

Background

The shielded metal arc welding is the most widely used welding method in industrial production, a metal to be welded is used as one electrode, a welding rod is used as the other electrode, an electric arc is generated when the two electrodes are close to each other, the welding rod and a workpiece are mutually melted by heat generated by arc discharge and form a welding seam after condensation, so that a welding process of a firm joint is obtained.

Because traditional arc welding protection device, at the in-process that uses, be not convenient for carry out the centre gripping to the metal sheet and fix to lead to appearing rocking phenomenon at the welded in-process, traditional device is not convenient for highly adjusting metal tungsten needle simultaneously, thereby leads to welding work inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art and be not convenient for carry out centre gripping fixed defect to the metal sheet, provide an arc welding protection device. The arc welding protection device has the characteristics of being convenient for clamping and fixing the metal plate and the like.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an arc welding protection device, includes the fixed slot, the inner chamber of fixed slot is close to top department and is equipped with the fly leaf, just fly leaf bottom intermediate position department is equipped with the support arm, just the outside of support arm is equipped with the frame, the top department of the frame left and right sides all is equipped with the handle, just the bottom of support arm is equipped with metal tungsten needle, the round hole has been seted up to the bottom of frame, just the bottom swing joint of frame has the baffle, the round hole is passed to metal tungsten needle's bottom to extend to the bottom of frame, just the inside of frame is equipped with inert gas, two the equal fixedly connected with electric telescopic handle in top of handle, and two electric telescopic handle's top all with the bottom fixed connection of fly leaf, the first slider of the equal fixedly connected with in left and right sides department of fly leaf, just first spout, two are all seted up in fixed slot inner chamber's left and right sides department first slider swing joint is at the inner chamber of adjacent first spout respectively, just the top of fly leaf is equipped with adjustment mechanism, fixed slot inner chamber bottom intermediate position department fixedly connected with shell, just the top of shell is equipped with clamping mechanism, shell top intermediate position department fixedly connected with places the board.

Preferably, the adjusting mechanism comprises a rotating handle, the rotating handle is arranged on the right side of the fixing groove and close to the top, a threaded rod is fixedly connected to the center of a circle on the left side of the rotating handle, first bearings are fixedly connected to the left side and the right side of the inner cavity of the fixing groove and close to the top, the left end of the threaded rod penetrates through the inner cavities of the adjacent first bearings, and the threaded rod is plugged into the inner cavities of the first bearings.

Preferably, the outside swing joint of threaded rod has two rectangular blocks, and two the rectangular block sets up about for, two the inner chamber of rectangular block all seted up with threaded rod assorted internal thread, and two internal thread opposite direction, two the bottom of rectangular block all articulates there is the connecting rod, and two the one end that adjacent rectangular block was kept away from to the connecting rod all articulates with the top of fly leaf.

Preferably, fixture includes loose gear, loose gear sets up in shell cavity intermediate position department, just centre of a circle department runs through and is equipped with the movable rod on the loose gear, both ends all with shell inner chamber swing joint around the movable rod, just the outside of movable rod is close to the driven conical gear of front end department fixedly connected with, the right side meshing of driven conical gear has initiative conical gear, just initiative conical gear's right side fixedly connected with transfer line, the right side of shell and the right side of fixed slot are close to the equal fixedly connected with second bearing of bottom department, the right-hand member of transfer line runs through the inner chamber of two second bearings in proper order to fixedly connected with knob, just the outside of transfer line is close to right-hand member department fixedly connected with running gear, running gear's top meshing has the screens gear, just the left side fixedly connected with second slider of screens gear, the right side of fixed slot is close to bottom department and has seted up the second spout, second slider swing joint is at the inner chamber of second spout.

Preferably, the top and the bottom of loose gear have engaged with second rack board and first rack board respectively, the equal fixedly connected with carriage release lever in one side that first rack board and second rack board are opposite, two the equal fixedly connected with third slider in bottom of carriage release lever, just the third spout, two have been seted up to shell inner chamber bottom the equal swing joint of third slider is at the inner chamber of third spout, the top of shell is close to left and right sides department and has all seted up the rectangle opening, and two the top of carriage release lever is pegged graft respectively at adjacent rectangle open-ended inner chamber to equal fixedly connected with regulating plate, and two the equal fixedly connected with push rod in one side that the regulating plate is relative, two the equal fixedly connected with curb plate of the relative one end of push rod.

Preferably, two equal fixedly connected with rectangular plate in bottom department of the relative one side of curb plate, and two equal fixedly connected with fourth slider in bottom of rectangular plate, the top of shell is close to left and right sides department and has all seted up the fourth spout, two fourth slider swing joint is respectively at the inner chamber of adjacent fourth spout, two equal fixedly connected with two stoppers in intermediate position department, and two are close to in the top of rectangular plate the stopper sets up around being, two the top of rectangular plate all is equipped with dull and stereotyped, two the equal fixedly connected with two locating pieces in dull and stereotyped bottom, and two the screens gear sets up around being, two all seted up two spacing holes on the flat board, and two the spacing hole sets up around being, a plurality of the inner chamber in spacing hole all runs through and is equipped with the montant, a plurality of the bottom of montant respectively with the top fixed connection of adjacent rectangular plate, a plurality of the equal first spring in the outside of rectangular plate, just the upper and lower both ends of first spring respectively with dull and stereotyped and rectangular plate fixed connection, two both sides are close to the common rotating rod that runs through and the third rotating shaft and the handle that the bearing end is equipped with the second rotating rod and the handle the bearing is located the second rotating rod and the bearing and the handle rotating shaft and the bearing is located the second rotating shaft and the handle rotating shaft and the bearing is connected with the bearing.

Preferably, a first single sheave is fixedly connected to the outer side of the first rotating rod close to the rear end, a second single sheave is arranged on the right side of the first single sheave, the first single sheave and the second single sheave are connected through belt transmission, the second single sheave is sleeved on the outer side of the second rotating rod, a disc is fixedly connected to the outer side of the first rotating rod close to the left end, a moving block is arranged on the left side of the disc, a positioning rod is fixedly connected to the right side of the moving block, a plurality of positioning grooves are formed in the outer side of the disc, the right end of the positioning rod is inserted into an inner cavity of one of the positioning grooves, a fifth sliding block is fixedly connected to the front side of the moving block, a fifth sliding groove is formed in the rear side of the fixing groove, the fifth sliding block is movably connected to an inner cavity of the fifth sliding groove, a through hole is formed in the fifth sliding block, a cross rod penetrates through the inner cavity of the through hole, two ends of the cross rod are fixedly connected to the inner cavity of the fifth sliding groove, a second spring is sleeved on the outer side of the cross rod, and the left end and right end of the second spring are fixedly connected to the inner cavity of the fifth sliding groove and the left side of the fifth sliding block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a through setting up fixture, through the mutual cooperation between screens gear, knob, rotating gear, carriage release lever, cam, belt, montant, curb plate, push rod, first spring, stopper, first rack plate, rectangular plate, transfer line, initiative conical gear, driven conical gear, loose gear, second rack plate, locating piece and the flat board, be convenient for carry out the centre gripping to the metal sheet and fix, improve the effect of using;

2. the utility model discloses a set up adjustment mechanism, through threaded rod, connecting rod, rectangular block and commentaries on classics mutually supporting between these parts, be convenient for highly adjust the metal tungsten needle to make things convenient for the expansion of weldment work.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a top view of a portion of the fixing slot of the present invention;

FIG. 3 is an enlarged view of the point A of FIG. 1 according to the present invention;

fig. 4 is an enlarged view of the point B in fig. 1 according to the present invention.

The reference numbers in the figures: 1. fixing grooves; 2. a threaded rod; 3. a connecting rod; 4. a rectangular block; 5. turning a handle; 6. an electric telescopic rod; 7. a clamping gear; 8. a knob; 9. a rotating gear; 10. a travel bar; 11. a housing; 12. a movable plate; 13. a cam; 14. a belt; 15. a vertical rod; 16. a side plate; 17. a push rod; 18. a first spring; 19. a limiting block; 20. a first rack plate; 21. a rectangular plate; 22. a transmission rod; 23. a driving bevel gear; 24. a driven bevel gear; 25. a movable gear; 26. a second rack plate; 27. positioning a block; 28. a flat plate; 29. a disc; 30. positioning a rod; 31. a cross bar; 32. a second spring; 33. a moving block; 34. hand-operated wheel.

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.

Referring to fig. 1-4, the present invention provides a technical solution:

example 1:

the utility model provides an arc welding protection device, including fixed slot 1, the inner chamber of fixed slot 1 is close to top department and is equipped with fly leaf 12, and fly leaf 12 bottom intermediate position department is equipped with the support arm, and the outside of support arm is equipped with the frame, the top department of the frame left and right sides all is equipped with the handle, and the bottom of support arm is equipped with the metal tungsten needle, the round hole has been seted up to the bottom of frame, and the bottom swing joint of frame has the baffle, the round hole is passed to the bottom of metal tungsten needle, and extend to the bottom of frame, and the inside of frame is equipped with inert gas, the equal fixedly connected with electric telescopic handle 6 in top of two handles, and the top of two electric telescopic handle 6 all with the bottom fixed connection of fly leaf 12, the equal fixedly connected with first slider in left and right sides department of fly leaf 12, and first spout has all been seted up in the left and right sides department of fixed slot 1 inner chamber, two first sliders are swing joint respectively in the inner chamber of adjacent first spout, and the top of fly leaf 12 is equipped with adjustment mechanism, fixed slot 1 inner chamber bottom intermediate position department fixedly connected with shell 11, and the top of shell 11 is equipped with fixture, shell 11 top intermediate position department fixedly connected with places the board.

The clamping mechanism comprises a movable gear 25, the movable gear 25 is arranged in the middle of the inner cavity of the shell 11, a movable rod penetrates through the center of a circle of the movable gear 25, the front end and the rear end of the movable rod are movably connected with the inner cavity of the shell 11, a driven bevel gear 24 is fixedly connected to the outer side of the movable rod close to the front end, a driving bevel gear 23 is meshed to the right side of the driven bevel gear 24, a driving transmission rod 22 is fixedly connected to the right side of the driving bevel gear 23, a second bearing is fixedly connected to the right side of the shell 11 and the right side of the fixing groove 1 close to the bottom, inner cavities of the two second bearings are sequentially penetrated by the right end of the transmission rod 22, a knob 8 is fixedly connected to the outer side of the transmission rod 22 close to the right end, a rotating gear 9 is fixedly connected to the right end, a clamping gear 7 is meshed to the top of the rotating gear 9, a second sliding block is fixedly connected to the left side of the clamping gear 7, a second sliding groove is formed in the right side of the fixing groove 1 close to the bottom, and the second sliding block is movably connected to the inner cavity of the second sliding groove.

The top and the bottom of the movable gear 25 are respectively engaged with a second rack plate 26 and a first rack plate 20, one opposite sides of the first rack plate 20 and the second rack plate 26 are respectively fixedly connected with a movable rod 10, the bottom ends of the two movable rods 10 are respectively fixedly connected with a third slide block, the bottom of the inner cavity of the shell 11 is provided with a third slide groove, the two third slide blocks are respectively movably connected with the inner cavity of the third slide groove, the top of the shell 11 close to the left side and the right side is respectively provided with a rectangular opening, the top ends of the two movable rods 10 are respectively inserted into the inner cavities of the adjacent rectangular openings and are respectively and fixedly connected with an adjusting plate, one opposite side of the two adjusting plates is respectively and fixedly connected with a push rod 17, one opposite end of the two push rods 17 is respectively and fixedly connected with a side plate 16, the bottom of one opposite side of the two side plates 16 is respectively and fixedly connected with a rectangular plate 21, and the bottoms of the two rectangular plates 21 are respectively and fixedly connected with a fourth slide block, the top of the shell 11 is provided with fourth sliding grooves near the left and right sides, two fourth sliding blocks are movably connected with inner cavities of adjacent fourth sliding grooves respectively, the tops of the two rectangular plates 21 are fixedly connected with two limiting blocks 19 near the middle positions, the two limiting blocks 19 are arranged in a front-back manner, the tops of the two rectangular plates 21 are provided with flat plates 28, the bottoms of the two flat plates 28 are fixedly connected with two positioning blocks 27, the two clamping gears 7 are arranged in a front-back manner, the two flat plates 28 are provided with two limiting holes, the two limiting holes are arranged in a front-back manner, inner cavities of the limiting holes are provided with vertical rods 15 in a penetrating manner, the bottom ends of the vertical rods 15 are fixedly connected with the tops of the adjacent rectangular plates 21 respectively, the outer sides of the rectangular plates 21 are sleeved with first springs 18, and the upper and lower ends of the first springs 18 are fixedly connected with the flat plates 28 and the rectangular plates 21 respectively, the top parts of the two flat plates 28 are provided with cams 13 near the front and rear sides, the two cams 13 on the left side are provided with a first rotating rod which is arranged near the bottom part and penetrates through the two cams 13, the outer side of the first rotating rod is fixedly connected with a first single grooved wheel near the rear end, the right side of the first single grooved wheel is provided with a second single grooved wheel, the first single grooved wheel and the second single grooved wheel are in transmission connection through a belt 14, the second single grooved wheel is sleeved on the outer side of the second rotating rod, the outer side of the first rotating rod is fixedly connected with a disc 29 near the left end, the left side of the disc 29 is provided with a moving block 33, the right side of the moving block 33 is fixedly connected with a positioning rod 30, the outer side of the disc 29 is provided with a plurality of positioning grooves, the right end of the positioning rod 30 is inserted into the inner cavity of one of the positioning grooves, and the front side of the moving block 33 is fixedly connected with a fifth sliding block, a fifth sliding groove is formed in the rear side of the fixing groove 1, a fifth sliding block is movably connected to an inner cavity of the fifth sliding groove, a through hole is formed in the fifth sliding block, a cross rod 31 penetrates through the inner cavity of the through hole, two ends of the cross rod 31 are fixedly connected with the inner cavity of the fifth sliding groove, a second spring 32 is sleeved on the outer side of the cross rod 31, the left end and the right end of the second spring 32 are fixedly connected with the left side of the inner cavity of the fifth sliding groove and the fifth sliding block respectively, third bearings are fixedly connected to the positions, close to the left side and the right side, of the rear side of the fixing groove 1, the rear end of the first rotating rod penetrates through the inner cavities of the adjacent third bearings and is fixedly connected with a hand-operated wheel 34, a second rotating rod penetrates through the positions, close to the bottoms, of the two cams 13 on the right side, and the rear end of the second rotating rod penetrates through the inner cavities of the adjacent third bearings and extends to the rear side of the fixing groove 1;

when the metal plates need to be processed and welded, firstly, two metal plates needing to be processed are placed on the adjacent rectangular plates 21, and the opposite sides of the two metal plates are placed on the placing plates, at the moment, the clamping gear 7 moves upwards to drive the second sliding block to move in the inner cavity of the second sliding chute, the clamping gear 7 limits the position, meanwhile, the clamping gear 7 moves upwards to be not meshed with the rotating gear 9, at the moment, the rotating knob 8 drives the transmission rod 22 to rotate, the transmission rod 22 rotates to drive the driving conical gear 23 to rotate, the driving conical gear 23 rotates to drive the driven conical gear 24 to rotate, the driven conical gear 24 rotates to drive the movable rod to rotate, the movable rod rotates to drive the movable gear 25 to rotate, the movable gear 25 rotates to drive the first rack plate 20 and the second rack plate 26 which are meshed with the movable gear 25 to move relatively, the relative movement of the first rack plate 20 and the second rack plate 26 can drive the adjacent movable rods 10 to relatively move under the limit of the third sliding block and the third sliding groove, the relative movement of the two movable rods 10 can drive the adjacent adjusting plates to relatively move, the relative movement of the two adjusting plates can drive the two side plates 16 to relatively move through the adjacent push rods 17, the relative movement of the two side plates 16 can drive the adjacent rectangular plates 21 to relatively move under the limit of the fourth sliding block and the fourth sliding groove, so as to drive the adjacent two limiting blocks 19 to clamp and fix the adjacent metal plates, after the clamping and fixing are completed, the knob 8 is stopped to rotate, the pulled clamping gear 7 is released, the clamping gear 7 moves downwards under the self gravity, so as to continue to be meshed with the rotating gear 9, then the moving block 33 is pulled leftwards, the moving block 33 can drive the fifth sliding block to slide on the transverse rod 31 and extrude the second spring 32, and the moving block 33 moves leftwards to drive the positioning rod 30 to be far away from the inner cavity of one of the positioning grooves, at the moment, the hand-operated wheel 34 is rotated to drive the first rotating rod to rotate, the first rotating rod rotates to drive the first single grooved wheel to rotate, the first single grooved wheel rotates to drive the second single grooved wheel to rotate through the belt 14, the second single grooved wheel rotates to drive the second rotating rod to rotate, the first rotating rod and the second rotating rod rotate to drive the two adjacent cams 13 to rotate, the cams 13 rotate to contact with the adjacent flat plates 28 and push the two flat plates 28 to move downwards, and the flat plates 28 slide downwards on the vertical rods 15 and extrude the first springs 18, so that the positioning blocks 27 fix the tops of the adjacent metal plates, after clamping and fixing are completed, the hand-operated wheel 34 stops rotating, the pulled moving block 33 is released, the moving block 33 is restored under the action of the second spring 32, and the positioning rod 30 also moves rightwards to enter the inner cavity of one of the positioning grooves, and the fixing stability of the fixing is improved.

Example 2:

the adjusting mechanism comprises a rotating handle 5, the rotating handle 5 is arranged on the right side of the fixing groove 1 and is close to the top, the left side of the rotating handle 5 is fixedly connected with a threaded rod 2 in the circle center, the outer side of the threaded rod 2 is movably connected with two rectangular blocks 4, the two rectangular blocks 4 are arranged in the left and right directions, internal threads matched with the threaded rod 2 are arranged in the inner cavities of the two rectangular blocks 4, the directions of the two internal threads are opposite, the bottoms of the two rectangular blocks 4 are hinged with connecting rods 3, one ends, far away from the adjacent rectangular blocks 4, of the two connecting rods 3 are hinged with the top of the movable plate 12, first bearings are fixedly connected to the positions, close to the top, of the left side and the right side of the inner cavity of the fixing groove 1, the left end of the threaded rod 2 penetrates through the inner cavities of the adjacent first bearings, and is plugged into the inner cavities far away from the first bearings;

after the metal plate is clamped and fixed, the rotating handle 5 is rotated, the rotating handle 5 rotates to drive the threaded rod 2 to rotate, the threaded rod 2 rotates to drive the two rectangular blocks 4 to move relatively, the two rectangular blocks 4 move relatively to each other to drive the movable plate 12 to move downwards under the limit of the first sliding block and the first sliding groove through the adjacent connecting rods 3, the movable plate 12 moves downwards to drive the outer frame to move downwards, when the movable plate moves to a proper position, the rotating handle 5 stops rotating, then the two electric telescopic rods 6 are started through the external power supply, the power ends of the electric telescopic rods 6 can drive the handles to move upwards when the electric telescopic rods 6 work, the two handles move upwards to drive the outer frame to move upwards together, the outer frame moves upwards to leak the metal tungsten needle to work, the metal tungsten needle can push and open the baffle when working, the inert gas is released to protect the welding process, when the electric telescopic rods do not work, the power ends of the two electric telescopic rods 6 are started through the external power supply to drive the adjacent handles to move downwards, the outer frame can be restored to the original position, the interior of the metal tungsten needle can be recovered, and the inert gas can be prevented from being oxidized and fractured.

The working principle is as follows: firstly, in the using process, two metal plates to be processed are placed on the adjacent rectangular plates 21, and the opposite sides of the two metal plates are placed on the placing plates, at the moment, the clamping gear 7 is moved upwards, the clamping gear 7 can drive the second slider to move in the inner cavity of the second chute, the clamping gear 7 can limit the position, meanwhile, the clamping gear 7 can move upwards and can not be meshed with the rotating gear 9, at the moment, the rotating knob 8 drives the transmission rod 22 to rotate, the transmission rod 22 can drive the driving conical gear 23 to rotate, the driving conical gear 23 can drive the driven conical gear 24 to rotate, the driven conical gear 24 can drive the movable rod to rotate, the movable rod can drive the movable gear 25 to rotate, the movable gear 25 can drive the first rack plate 20 and the second rack plate 26 which are meshed with the movable gear 25 to relatively move by rotating, the relative movement of the first rack plate 20 and the second rack plate 26 can drive the adjacent movable rods 10 to relatively move under the limit of the third sliding block and the third sliding groove, the relative movement of the two movable rods 10 can drive the adjacent adjusting plates to relatively move, the relative movement of the two adjusting plates can drive the two side plates 16 to relatively move through the adjacent push rods 17, the relative movement of the two side plates 16 can drive the adjacent rectangular plates 21 to relatively move under the limit of the fourth sliding block and the fourth sliding groove, so as to drive the adjacent two limiting blocks 19 to clamp and fix the adjacent metal plates, after the clamping and fixing are completed, the knob 8 is stopped to rotate, the pulled clamping gear 7 is released, the clamping gear 7 moves downwards under the self gravity, so as to continue to be meshed with the rotating gear 9, then the moving block 33 is pulled leftwards, the moving block 33 can drive the fifth sliding block to slide on the transverse rod 31 and extrude the second spring 32, and the moving block 33 moves leftwards to drive the positioning rod 30 to be far away from the inner cavity of one positioning groove, at the moment, the hand-operated wheel 34 is rotated to drive the first rotating rod to rotate, the first rotating rod rotates to drive the first single-grooved wheel to rotate, the first single-grooved wheel rotates to drive the second single-grooved wheel to rotate through the belt 14, the second single-grooved wheel rotates to drive the second rotating rod to rotate, the first rotating rod and the second rotating rod rotate to drive the two adjacent cams 13 to rotate, the cams 13 rotate to contact with the adjacent flat plates 28 and push the two flat plates 28 to move downwards, the flat plates 28 slide downwards on the vertical rods 15 and extrude the first springs 18, so that the positioning blocks 27 fix the tops of the adjacent metal plates, after clamping and fixing are completed, the hand-operated wheel 34 stops rotating, the pulled moving block 33 is released, and the moving block 33 is restored under the action of the second spring 32, at the moment, the positioning rod 30 can be inserted into the inner cavity of one of the positioning grooves, the fixing stability is improved, after the processing is finished, the welded metal plate can be taken out through reverse operation, at the moment, the rotating handle 5 is rotated, the rotating handle 5 rotates to drive the threaded rod 2 to rotate, the threaded rod 2 rotates to drive the two rectangular blocks 4 to move relatively, the two rectangular blocks 4 move relatively to each other, the adjacent connecting rods 3 jointly drive the movable plate 12 to move downwards under the limit of the first sliding block and the first sliding groove, the movable plate 12 moves downwards to drive the outer frame to move downwards, when the movable plate moves to a proper position, the rotating handle 5 stops rotating, then the two electric telescopic rods 6 are started through an external power supply, when the electric telescopic rods 6 work, the power ends of the electric telescopic rods can drive the handles to move upwards, the two handles move upwards to jointly drive the outer frame to move upwards, the outer frame moves upwards, and the metal tungsten needle leaks to work, the metal tungsten needle during operation can promote and open the baffle, and release inert gas protects welding process, and when out of work, the power end that starts two electric telescopic handle 6 through external power source drives adjacent handle and moves down, can make the frame resume the normal position to withdraw metal tungsten needle inert gas's inside, can prevent metal tungsten needle oxidative fracture.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an arc welding protection device, includes fixed slot (1), the inner chamber of fixed slot (1) is close to top department and is equipped with fly leaf (12), just fly leaf (12) bottom intermediate position department is equipped with the support arm, just the outside of support arm is equipped with the frame, the top department of the frame left and right sides all is equipped with the handle, just the bottom of support arm is equipped with metal tungsten needle, the round hole has been seted up to the bottom of frame, just the bottom swing joint of frame has the baffle, the round hole is passed to the bottom of metal tungsten needle to extend to the bottom of frame, just the inside of frame is equipped with inert gas, its characterized in that: two the equal fixedly connected with electric telescopic handle (6) in top of handle, and two the top of electric telescopic handle (6) all with the bottom fixed connection of fly leaf (12), the first slider of the equal fixedly connected with in left and right sides department of fly leaf (12), just first spout, two have all been seted up in the left and right sides department of fixed slot (1) inner chamber first slider swing joint is respectively at the inner chamber of adjacent first spout, just the top of fly leaf (12) is equipped with adjustment mechanism, fixed slot (1) inner chamber bottom intermediate position department fixedly connected with shell (11), just the top of shell (11) is equipped with fixture, shell (11) top intermediate position department fixedly connected with places the board.

2. An arc welding protection device according to claim 1, wherein: the adjusting mechanism comprises a rotating handle (5), the rotating handle (5) is arranged on the right side of the fixing groove (1) and close to the top, a threaded rod (2) is fixedly connected to the center of a circle on the left side of the rotating handle (5), the left side and the right side of the inner cavity of the fixing groove (1) are close to the top and are fixedly connected with first bearings, the left end of the threaded rod (2) penetrates through the inner cavity of each adjacent first bearing, and the left end of the threaded rod is connected with the inner cavity of each first bearing in an inserting mode.

3. An arc welding protection apparatus according to claim 2, wherein: the outside swing joint of threaded rod (2) has two rectangular blocks (4), and two rectangular block (4) are for controlling setting, two the inner chamber of rectangular block (4) all seted up with threaded rod (2) assorted internal thread, and two internal thread opposite direction, two the bottom of rectangular block (4) all articulates there is connecting rod (3), and two the one end that adjacent rectangular block (4) were kept away from in connecting rod (3) all articulates with the top of fly leaf (12).

4. An arc welding protection apparatus according to claim 1, wherein: fixture includes loose gear (25), loose gear (25) set up in shell (11) inner chamber intermediate position department, just centre of a circle department runs through and is equipped with the movable rod on loose gear (25), both ends all with shell (11) inner chamber swing joint around the movable rod, just the outside of movable rod is close to front end department fixedly connected with driven bevel gear (24), the right side meshing of driven bevel gear (24) has initiative bevel gear (23), just the right side fixedly connected with transfer line (22) of initiative bevel gear (23), the right side of shell (11) and the right side of fixed slot (1) are close to the equal fixedly connected with second bearing of bottom department, the right-hand member of transfer line (22) runs through the inner chamber of two second bearings in proper order to fixedly connected with knob (8), just the outside of transfer line (22) is close to right-hand member department fixedly connected with running gear (9), the top meshing of running gear (9) has screens gear (7), just the left side fixedly connected with second slider of screens gear (7), the right side of fixed slot department has seted up second spout and is close to the second spout.

5. An arc welding protection device according to claim 4, wherein: the top and the bottom of loose gear (25) have engaged with second rack board (26) and first rack board (20) respectively, the equal fixedly connected with carriage release lever (10) in one side that first rack board (20) and second rack board (26) are opposite, two the equal fixedly connected with third slider in bottom of carriage release lever (10), just the third spout has been seted up to shell (11) inner chamber bottom, two the equal swing joint of third slider is at the inner chamber of third spout, the rectangle opening has all been seted up near left and right sides department at the top of shell (11), and two peg graft respectively at adjacent rectangle open-ended inner chamber on the top of carriage release lever (10) to equal fixedly connected with regulating plate, and two the equal fixedly connected with push rod (17) in one side that the regulating plate is relative, two the equal fixedly connected with curb plate (16) in one end that push rod (17) is relative.

6. An arc welding protection device according to claim 5, wherein: the bottom of one side, opposite to the two side plates (16), is fixedly connected with a rectangular plate (21), the bottoms of the two rectangular plates (21) are fixedly connected with a fourth slider, the top of the shell (11) is provided with fourth sliding grooves near the left and right sides, the two fourth sliders are respectively and movably connected with inner cavities of adjacent fourth sliding grooves, the top of the two rectangular plates (21) is provided with two limit blocks (19) near the middle position, the two limit blocks (19) are arranged in the front and back direction, the top of the two rectangular plates (21) is provided with a flat plate (28), the bottom of the two flat plates (28) is fixedly connected with two locating blocks (27), the two clamping gears (7) are arranged in the front and back direction, the two flat plates (28) are provided with two limit holes, the two limit holes are arranged in the front and back direction, the inner cavities of the limit holes are provided with vertical rods (15) in a penetrating manner, the bottom ends of the rectangular plates (15) are respectively and fixedly connected with the tops of the adjacent flat plates (21), the outer sides of the rectangular plates (21) are provided with a first spring (18), the two flat plates (13) are arranged in the front and back directions, the positions where the first spring (18) and the first cam (13) are arranged, the two flat plate (13) are arranged in the front and the two flat plate (13) in the front and back directions, just the rear side of fixed slot (1) is close to the equal fixedly connected with third bearing of left and right sides department, the rear end of first bull stick runs through the inner chamber of adjacent third bearing to hand round of fixedly connected with (34), be located two on the right side cam (13) are gone up and are close to bottom department and run through jointly and be equipped with the second bull stick, the rear end of second bull stick runs through the inner chamber of adjacent third bearing to extend to the rear side of fixed slot (1).

7. An arc welding protection device according to claim 6, wherein: the outer side of the first rotating rod is fixedly connected with a first single grooved pulley close to the rear end, the right side of the first single grooved pulley is provided with a second single grooved pulley, the first single grooved pulley and the second single grooved pulley are in transmission connection through a belt (14), the second single grooved pulley is sleeved on the outer side of the second rotating rod, the outer side of the first rotating rod is fixedly connected with a disc (29) close to the left end, the left side of the disc (29) is provided with a moving block (33), the right side of the moving block (33) is fixedly connected with a positioning rod (30), the outer side of the disc (29) is provided with a plurality of positioning grooves, the right end of the positioning rod (30) is inserted into the inner cavity of one of the positioning grooves, the front side of the moving block (33) is fixedly connected with a fifth sliding block, a fifth sliding groove is formed in the rear side of the fixing groove (1), the fifth sliding block is movably connected to the inner cavity of the fifth sliding groove, through holes are formed in the fifth sliding block, the inner cavity of the through holes is provided with a cross rod (31), two ends of the cross rod (31) are fixedly connected with the fifth sliding groove, the outer side of the second sliding groove (31), and two ends of a second sliding block (32) are respectively connected with the left side and right side of the second sliding groove (32).