Dustproof structure of electric welding machine

Abstract

The utility model belongs to the field of electric welding machines, and particularly relates to a dustproof structure of an electric welding machine, which comprises a casing and a welding machine, the welding machine is fixedly mounted on the inner wall of the bottom of the casing, a motor is fixedly connected to the inner wall of the rear side of the casing, air inlet holes are arranged on two sides of the casing, and the inner walls of the two air inlet holes are fixedly connected with the same filter cartridge. One end of an output shaft of the motor is fixedly connected with a curved bar, the front end of the curved bar penetrates through the inner wall of the front side of the machine shell and extends to the front side of the machine shell, the front side of the curved bar is rotationally connected with the inner wall of the front side of the machine shell, the outer wall of the curved bar is rotationally connected with a connecting rod, and the right side of the connecting rod is rotationally connected with a push rod. External air is filtered by the filter cylinder and then enters the machine shell, the situation that dust enters the machine shell is avoided, the gas flowability in the machine shell is improved, the dust removal problem is solved, and heat dissipation of the welding machine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric welding machines, in particular to a dustproof structure of an electric welding machine. Background Art

[0002] The electric welding machine uses the high-temperature arc generated when the positive and negative poles are short-circuited for an instant to melt the solder on the welding rod and the material to be welded, so that the contacted objects are combined. Its structure is very simple, which is a high-power transformer.

[0003] The welding machine shell is usually provided with heat dissipation holes for heat dissipation, but the natural heat dissipation gas has poor fluidity, and the external dust will enter the interior of the welding machine through the heat dissipation holes. The dust will not only accelerate the aging of the welding machine, so in view of the above problems, a dustproof structure of the welding machine is proposed. Utility Model Content

[0004] The utility model aims to solve the defect in the prior art that dust is easily introduced into the electric welding machine, and proposes a dustproof structure for the electric welding machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dustproof structure of an electric welding machine comprises a casing and a welding machine, wherein the welding machine is fixedly mounted on the bottom inner wall of the casing, a motor is fixedly connected to the inner wall at the rear side of the casing, air inlet holes are arranged on both sides of the casing, the inner walls of the two air inlet holes are fixedly connected to the same filter cartridge, one end of the motor output shaft is fixedly connected to a bent rod, the front end of the bent rod penetrates the inner wall at the front side of the casing and extends to the front side of the casing, and the front side of the bent rod is rotatably connected to the inner wall at the front side of the casing, the outer wall of the bent rod is rotatably connected to a connecting rod, a push rod is rotatably connected to the right side of the connecting rod, a piston is fixedly connected to the right side of the push rod, a through hole is arranged inside the piston, an air outlet hole is arranged on the right side of the casing, a cylinder is penetrated and fixedly connected to the inner wall of the air outlet hole, the piston is slidably connected to the inside of the cylinder, a one-way valve is fixedly connected to the right side of the cylinder, and fixing frames are arranged on both sides of the casing;

[0007] A dust removal mechanism is arranged on the fixed frame, and the curved rod drives the dust removal mechanism to move.

[0008] With the above structure: when the welding machine is used, the motor is started, the motor drives the crankshaft to rotate on the casing, the crankshaft drives the connecting rod to move, the connecting rod drives the push rod and the piston to slide in the cylinder, when the piston slides to the left, the gas in the casing enters the cylinder through the through hole, and when the piston slides to the right, the gas in the cylinder is discharged out of the casing through the one-way valve. The piston slides repeatedly, the gas in the casing is reduced, and the external air enters the casing through the filter cartridge. The filter cartridge filters out the dust in the air and delivers clean air to the casing. This design forms a negative pressure by discharging the air in the casing, and the outside air enters the casing after being filtered by the filter cartridge, thereby avoiding the situation where dust enters the casing and increasing the gas fluidity in the casing, which is conducive to the heat dissipation of the welding machine.

[0009] Preferably, the dust removal mechanism comprises a rotating rod, a hollow rod, a telescopic rod, a brush bar, a transmission wheel and a belt;

[0010] The rotating rod is rotatably connected to one side of the two fixed frames close to each other, the rotating rod is connected to the filter cartridge, the hollow rod is a hollow structure, the hollow rod is fixedly connected to the outer wall of the rotating rod, the telescopic rod is slidably connected to the inner wall of the hollow rod, the brush bar is fixedly connected to the bottom of the telescopic rod, the brush bar is in sliding contact with the filter cartridge, the transmission wheels are respectively fixedly connected to the front side of the curved rod and the outer wall of the rotating rod, and the outer walls of the two transmission wheels are sleeved with belts.

[0011] Furthermore, the rotation of the curved rod drives the transmission wheel on the curved rod to rotate, and the two transmission wheels rotate synchronously through belt drive. The transmission wheel drives the rotating rod to rotate, and the rotating rod drives the hollow rod, the telescopic rod and the brush bar to rotate. The brush bar brushes off the dust on the surface of the filter cartridge to prevent dust from clogging the filter holes and reducing the filtering effect.

[0012] Preferably, a tension spring is fixedly connected to the right side of the through hole, and the number of the tension springs is two, and the right sides of the two tension springs are fixedly connected to the same movable sheet, and the movable sheet is movably connected to the through hole.

[0013] Furthermore, when the piston moves to the left, negative pressure is formed in the cylinder, the movable plate is separated from the through hole, the tension spring is stretched, and the gas in the casing enters the cylinder through the through hole. When the piston moves to the right, the movable plate and the through hole are closed, the tension spring contracts, and the piston squeezes the gas in the cylinder toward the one-way valve, and the gas is discharged through the one-way valve.

[0014] Preferably, a fan is fixedly connected to the outer wall of the rotating rod.

[0015] Furthermore, after the brush bar has brushed off the dust on the surface of the filter cartridge, some of the dust will still accumulate in the filter cartridge. The rotation of the rotating rod drives the fan to rotate, and the rotation of the fan blows the dust accumulated in the filter cartridge out of the filter cartridge.

[0016] Preferably, a pressure spring is fixedly connected to the inner wall of the top of the hollow rod, and the bottom of the pressure spring is fixedly connected to the top of the telescopic rod.

[0017] Furthermore, when the brush bar contacts the filter cartridge, the pressure spring is in a compressed state, and the elastic force of the pressure spring presses the telescopic rod and the brush bar toward the filter cartridge, making the brush bar contact with the filter cartridge more closely, which helps the brush bar to clean the filter cartridge.

[0018] Beneficial effects:

[0019] 1. The piston is driven to move left and right with the assistance of the motor, and the gas in the casing is discharged from the casing through the cylinder and the one-way valve. When the gas in the casing is reduced, the external gas will enter the casing through the filter cartridge to ensure normal circulation ventilation in the casing, so as to achieve the effect of cooling and heat dissipation. When the gas enters the casing through the filter cartridge, the filter cartridge can be used to filter the dust in the gas, so as to achieve a good dust prevention effect while achieving the effect of ventilation and heat dissipation.

[0020] 2. The brush bar is driven by the motor to rotate to wash away the dust on the surface of the filter cartridge, and the fan rotates to blow the washed dust out of the filter cartridge, avoiding the filter cartridge being blocked by dust due to long-term use, so that the rate at which the gas passes through the filter cartridge will not be affected, thereby ensuring that the ventilation and heat dissipation effect in the casing will not be reduced.

[0021] In the utility model: this design forms negative pressure by exhausting the air in the casing, and the outside air enters the casing after being filtered by the filter cartridge, thereby avoiding the situation where dust enters the casing and increasing the gas flowability in the casing, which not only solves the problem of dust removal but also helps to dissipate heat of the welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front sectional three-dimensional schematic diagram of a dustproof structure of an electric welding machine proposed by the utility model;

[0023] Figure 2 A three-dimensional schematic diagram of the front appearance of a dustproof structure of an electric welding machine proposed by the utility model;

[0024] Figure 3 A three-dimensional schematic diagram of a dust removal mechanism and a fan of a dust-proof structure of an electric welding machine proposed by the utility model;

[0025] Figure 4 A three-dimensional schematic diagram of a push rod, a piston, a tension spring and a through hole of a dustproof structure of an electric welding machine proposed by the utility model;

[0026] Figure 5 A three-dimensional schematic diagram of a movable sheet and a tension spring of a dustproof structure of an electric welding machine proposed by the utility model;

[0027] Figure 6 The utility model provides a three-dimensional schematic diagram of a telescopic rod and a pressure spring of a dustproof structure of an electric welding machine.

[0028] In the figure: 1. casing; 2. welding machine; 3. motor; 4. filter cartridge; 5. bent rod; 6. connecting rod; 7. push rod; 8. piston; 9. cylinder; 10. one-way valve; 11. movable sheet; 12. tension spring; 13. fixing frame; 14. rotating rod; 15. hollow rod; 16. telescopic rod; 17. brush strip; 18. transmission wheel; 19. belt; 20. fan. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Embodiment 1

[0031] Reference Figure 1-6 , a dustproof structure of an electric welding machine, comprising a casing 1 and a welding machine 2, the welding machine 2 is fixedly mounted on the bottom inner wall of the casing 1, a motor 3 is fixedly connected to the inner wall of the rear side of the casing 1, air inlet holes are arranged on both sides of the casing 1, the inner walls of the two air inlet holes are fixedly connected to the same filter cartridge 4, one end of the output shaft of the motor 3 is fixedly connected to a bent rod 5, the front end of the bent rod 5 penetrates the inner wall of the front side of the casing 1 and extends to the front side of the casing 1, and the front side of the bent rod 5 is rotatably connected to the inner wall of the front side of the casing 1, the outer wall of the bent rod 5 is rotatably connected to a connecting rod 6, the right side of the connecting rod 6 is rotatably connected to a push rod 7, the right side of the push rod 7 is fixedly connected to a piston 8, a through hole is arranged inside the piston 8, an air outlet is arranged on the right side of the casing 1, a cylinder 9 is penetrated and fixedly connected to the inner wall of the air outlet, the piston 8 is slidably connected to the inside of the cylinder 9, a one-way valve 10 is fixedly connected to the right side of the cylinder 9, and fixing frames 13 are arranged on both sides of the casing 1;

[0032] The fixed frame 13 is provided with an ash removal mechanism, and the curved rod 5 drives the ash removal mechanism to move.

[0033] By means of the above structure: when the welding machine 2 is used, the motor 3 is started, and the motor 3 drives the crank rod 5 to rotate on the casing 1, the crank rod 5 drives the connecting rod 6 to move, and the connecting rod 6 drives the push rod 7 and the piston 8 to slide in the cylinder 9. When the piston 8 slides to the left, the gas in the casing 1 enters the cylinder 9 through the through hole. When the piston 8 slides to the right, the gas in the cylinder 9 is discharged outside the casing 1 through the one-way valve 10. The piston 8 slides repeatedly, the gas in the casing 1 is reduced, and the external air enters the casing 1 through the filter cartridge 4. The filter cartridge 4 filters out the dust in the air and delivers the clean air to the casing 1. This design forms a negative pressure by discharging the air in the casing 1. The external air enters the casing 1 after being filtered by the filter cartridge 4, thereby avoiding the situation where dust enters the casing 1 and increasing the gas fluidity in the casing 1, which is conducive to the heat dissipation of the welding machine 2.

[0034] In the utility model, the dust removal mechanism includes a rotating rod 14, a hollow rod 15, a telescopic rod 16, a brush bar 17, a transmission wheel 18 and a belt 19;

[0035] The rotating rod 14 is rotatably connected to the side where the two fixed frames 13 are close to each other. The rotating rod 14 is connected to the filter cartridge 4. The hollow rod 15 is a hollow structure. The hollow rod 15 is fixedly connected to the outer wall of the rotating rod 14. The telescopic rod 16 is slidably connected to the inner wall of the hollow rod 15. The brush strip 17 is fixedly connected to the bottom of the telescopic rod 16. The brush strip 17 is in sliding contact with the filter cartridge 4. The transmission wheel 18 is respectively fixedly connected to the front side of the curved rod 5 and the outer wall of the rotating rod 14. The outer walls of the two transmission wheels 18 are sleeved with belts 19. The rotation of the curved rod 5 drives the transmission wheel 18 on the curved rod 5 to rotate. The two transmission wheels 18 rotate synchronously through the belt 19 transmission. The transmission wheel 18 drives the rotating rod 14 to rotate. The rotating rod 14 drives the hollow rod 15, the telescopic rod 16 and the brush strip 17 to rotate. The brush strip 17 brushes off the dust on the surface of the filter cartridge 4 to prevent the dust from clogging the filter holes and reducing the filtering effect.

[0036] In the utility model, a tension spring 12 is fixedly connected to the right side of the through hole, and the number of the tension springs 12 is two. The right sides of the two tension springs 12 are fixedly connected to the same movable sheet 11, and the movable sheet 11 is movably connected to the through hole. When the piston 8 moves to the left, negative pressure is formed in the cylinder 9, the movable sheet 11 is separated from the through hole, the tension spring 12 is stretched, and the gas in the casing 1 enters the cylinder 9 through the through hole. When the piston 8 moves to the right, the movable sheet 11 and the through hole are closed, the tension spring 12 contracts, and the piston 8 squeezes the gas in the cylinder 9 toward the one-way valve 10, and the gas is discharged through the one-way valve 10.

[0037] In the utility model, a fan 20 is fixedly connected to the outer wall of the rotating rod 14. After the brush strip 17 brushes off the dust on the surface of the filter cartridge 4, some dust will still accumulate in the filter cartridge 4. The rotation of the rotating rod 14 drives the fan 20 to rotate, and the rotation of the fan 20 blows the dust accumulated in the filter cartridge 4 out of the interior of the filter cartridge 4.

[0038] In the utility model, a pressure spring is fixedly connected to the inner wall of the top of the hollow rod 15, and the bottom of the pressure spring is fixedly connected to the top of the telescopic rod 16. When the brush strip 17 contacts the filter cartridge 4, the pressure spring is in a compressed state. The elastic force of the pressure spring presses the telescopic rod 16 and the brush strip 17 toward the filter cartridge 4, making the brush strip 17 contact with the filter cartridge 4 more closely, which helps the brush strip 17 to brush the filter cartridge 4.

[0039] Embodiment 2

[0040] The difference between this embodiment and embodiment 1 is that the cylinder 9 and the one-way valve 10 can be replaced by a ventilation fan, which is fixedly connected to the inner wall of the air outlet. The ventilation fan transports the air in the casing 1 to the outside of the casing 1. However, when the ventilation fan is idle, dust can easily enter the inside of the casing 1 through the air outlet, and the sealing performance is not as good as that of the cylinder 9 and the one-way valve 10. Therefore, the design of the cylinder 9 and the one-way valve 10 is selected.

[0041] The working principle of the utility model is as follows: when the welding machine 2 is used, the motor 3 is started, the motor 3 drives the crankshaft 5 to rotate and rotate on the casing 1, the crankshaft 5 drives the connecting rod 6 to move, the connecting rod 6 drives the push rod 7 and the piston 8 to slide in the cylinder 9, when the piston 8 moves to the left, a negative pressure is formed in the cylinder 9, the movable sheet 11 is separated from the through hole, the tension spring 12 is stretched, and the gas in the casing 1 enters the cylinder 9 through the through hole, when the piston 8 moves to the right, the movable sheet 11 is closed with the through hole, the tension spring 12 contracts, the piston 8 squeezes the gas in the cylinder 9 toward the one-way valve 10, the gas is discharged through the one-way valve 10, the gas in the casing 1 is reduced, the external air enters the casing 1 through the filter cartridge 4, the filter cartridge 4 filters out the dust in the air, and delivers the clean air to the casing 1, the crankshaft 5 rotates to drive the transmission wheel 18 on the crankshaft 5 to rotate, and the two transmission wheels 18 are driven synchronously by the belt 19 The brush bar 17 is used to brush the dust on the surface of the filter cartridge 4.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dustproof structure for an electric welding machine, comprising a housing (1) and a welding machine (2), characterized in that: The welding machine (2) is fixedly mounted on the bottom inner wall of the casing (1); the rear inner wall of the casing (1) is fixedly connected to a motor (3); air inlet holes are arranged on both sides of the casing (1); the inner walls of the two air inlet holes are fixedly connected to the same filter cartridge (4); one end of the output shaft of the motor (3) is fixedly connected to a bent rod (5); the front end of the bent rod (5) passes through the front inner wall of the casing (1) and extends to the front side of the casing (1); the front side of the bent rod (5) is rotatably connected to the front inner wall of the casing (1); The outer wall of the rod (5) is rotatably connected to a connecting rod (6), the right side of the connecting rod (6) is rotatably connected to a push rod (7), the right side of the push rod (7) is fixedly connected to a piston (8), a through hole is provided inside the piston (8), an air outlet is provided on the right side of the housing (1), a cylinder (9) is penetrated and fixedly connected to the inner wall of the air outlet, the piston (8) is slidably connected to the inside of the cylinder (9), a one-way valve (10) is fixedly connected to the right side of the cylinder (9), and fixing frames (13) are provided on both sides of the housing (1); The fixed frame (13) is provided with an ash removal mechanism, and the curved rod (5) drives the ash removal mechanism to move.

2. The dustproof structure of an electric welding machine according to claim 1, characterized in that: The dust removal mechanism comprises a rotating rod (14), a hollow rod (15), a telescopic rod (16), a brush bar (17), a transmission wheel (18) and a belt (19); The rotating rod (14) is rotatably connected to the side of the two fixed frames (13) close to each other, the rotating rod (14) is connected to the filter cartridge (4), the hollow rod (15) is a hollow structure, the hollow rod (15) is fixedly connected to the outer wall of the rotating rod (14), the telescopic rod (16) is slidably connected to the inner wall of the hollow rod (15), the brush strip (17) is fixedly connected to the bottom of the telescopic rod (16), the brush strip (17) is in sliding contact with the filter cartridge (4), the transmission wheels (18) are respectively fixedly connected to the front side of the curved rod (5) and the outer wall of the rotating rod (14), and the outer walls of the two transmission wheels (18) are sleeved with belts (19).

3. The dustproof structure of an electric welding machine according to claim 1, characterized in that: A tension spring (12) is fixedly connected to the right side of the through hole, and the number of the tension springs (12) is two. The right sides of the two tension springs (12) are fixedly connected to the same movable sheet (11), and the movable sheet (11) is movably connected to the through hole.

4. The dustproof structure of an electric welding machine according to claim 2, characterized in that: A fan (20) is fixedly connected to the outer wall of the rotating rod (14).

5. The dust-proof structure of an electric welding machine according to claim 2, characterized in that: A pressure spring is fixedly connected to the inner wall of the top of the hollow rod (15), and the bottom of the pressure spring is fixedly connected to the top of the telescopic rod (16).

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