Smoke exhausting and ventilating device for electric welding machine

Abstract

The utility model relates to the field of electric welding machines, and discloses a smoke exhausting and ventilating device for an electric welding machine, which comprises a smoke dust protective cover, a filtering frame is fixedly arranged on the rear side of the smoke dust protective cover, a filtering device is arranged on the inner side of the filtering frame, and a connecting plate is arranged on the top of the filtering frame. A connecting plate is fixedly mounted on the outer side of the filter assembly, a sealing rubber strip is fixedly mounted on the outer side of the connecting plate, an exhaust pipe is fixedly mounted on the rear side of the connecting plate, and a fixing frame is fixedly mounted on the inner side of the exhaust pipe. Smoke generated by the device can drive the driving shaft and the fan blades to rotate through the motor, after the fan blades rotate, the smoke can be sucked into the inner side of the filtering frame from the inner side of the smoke dust protective cover, the filtering device can filter the smoke, the filtered smoke can be exhausted through the exhaust pipe, and the smoke is not prone to polluting air.

Description

Technical Field

[0001] The utility model relates to the technical field of electric welding machines, in particular to a smoke exhaust ventilation device for electric welding machines. Background Art

[0002] The electric welder 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 as to combine the contacted objects. The electric welder can generally be divided into two types according to the type of output power supply, one is AC power supply and the other is DC power supply. The principle of inductance is used. The inductance will produce a huge voltage change when it is connected and disconnected. The high-voltage arc generated when the positive and negative poles are short-circuited for an instant is used to melt the solder on the welding rod to achieve the purpose of atomic combination. During the operation of the electric welder, the high-temperature arc is used to melt the welding rod. After the welding rod is melted, it is smeared on the surface of the workpiece or in the joint to form a metallurgical bond.

[0003] Announcement No. CN 207547829 U discloses a fume exhaust ventilation device for an electric welding machine, comprising a box body, a detachable trash can is arranged on one side of the box body, columns are symmetrically arranged at both ends of the box body close to the trash can, a first mounting groove is arranged at the bottom between the two columns, an exhaust fan is arranged inside the first mounting groove, an exhaust pipe is arranged at one end of the exhaust fan, the exhaust pipe extends to the outdoors, an exhaust pipe is arranged at the other end of the exhaust fan, the exhaust fan is fixedly connected to the air inlet through the exhaust pipe, and the air inlet is horn-shaped;

[0004] When in use, the device makes it possible for personnel to smell the fume during the welding process, so that the fume will still cause harm to the body when the personnel perform welding work for a long time. In addition, the device is not provided with a filtering device, so the fume is easy to pollute the air after being discharged. Therefore, we propose a fume exhaust ventilation device for electric welding machines. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a smoke exhaust ventilation device for an electric welding machine.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: it includes a smoke and dust protective cover, a filter frame is fixedly installed on the rear side of the smoke and dust protective cover, a filter device is arranged on the inner side of the filter frame, a connecting plate is arranged on the top of the filter frame, a sealing strip is fixedly installed on the outer side of the connecting plate, an exhaust pipe is fixedly installed on the rear side of the connecting plate, and a fixing frame is fixedly installed on the inner side of the exhaust pipe; a filter assembly, the filter assembly is installed on the fixing frame; and an operating assembly is installed on the smoke and dust protective cover.

[0007] The utility model is further configured as follows: the filter assembly includes a protective frame, a motor, a drive shaft and fan blades, the protective frame is fixedly mounted on the left side of the fixed frame, the motor is fixedly mounted on the inner side of the protective frame, the drive shaft is fixedly mounted on the output end of the motor, and the fan blades are fixedly mounted around the outer side of the drive shaft.

[0008] By adopting the above technical solution, the smoke is discharged after being filtered by the filter device, and the filter device can be replaced after the connecting plate is disassembled, so that the smoke is discharged faster and the interior of the smoke and dust protective cover is clearer.

[0009] The utility model is further configured as follows: the operating component includes an air pump, a sealing inflation ring and a connecting pipe, the air pump is fixedly mounted on the bottom of the smoke and dust protective cover, the sealing inflation ring is fixedly mounted on the left and right sides of the front side of the smoke and dust protective cover, one end of the connecting pipe is fixedly mounted on the left and right sides of the front side of the air pump, and the other end of the connecting pipe is fixedly mounted on the outside of the connecting pipe.

[0010] By adopting the above technical solution, a window is opened on the front side of the smoke and dust protection hood, which makes it easier for workers to observe during operation. A flip plate is opened on the right side of the smoke and dust protection hood, so that workers can place materials to be welded, making it difficult for workers to smell smoke during welding.

[0011] The utility model is further configured as follows: fixing grooves are provided on the left and right sides of the front side of the smoke and dust protection cover, and the sealing and inflating ring is fixedly installed on the inner side of the fixing grooves.

[0012] By adopting the above technical solution, the sealing and inflating ring can be fixed on the inner side of the fixing groove, so that the sealing and inflating ring can fit the person, thereby achieving better sealing performance.

[0013] The utility model is further configured as follows: an air outlet slot is provided on the rear side of the smoke and dust protective cover, and the filter frame fits the air outlet slot.

[0014] By adopting the above technical solution, the smoke generated during welding inside the smoke protection hood can be discharged through the air outlet slots, so that the interior of the smoke protection hood is clearer.

[0015] The utility model is further configured as follows: a sliding groove is provided on the top of the filter frame, and the connecting plate is fitted in the sliding groove.

[0016] By adopting the above technical solution, the sliding into the groove facilitates the installation of the connecting plate.

[0017] The utility model is further configured as follows: a sealing groove is provided on the inner side of the sliding groove, and the outer diameter of the sealing rubber strip is the same as the inner diameter of the sealing groove.

[0018] By adopting the above technical solution, the sealing groove makes it easy for the sealing strip to seal the filter frame, so that it is not easy to generate a gap between the filter frame and the connecting plate after being connected.

[0019] The utility model is further configured as follows: threaded holes are provided at four corners of the top of the connection plate and the sliding groove, and fixing bolts are installed on the inner threads of the threaded holes.

[0020] By adopting the above technical solution, the threaded hole facilitates the connection plate to be fixedly threadedly installed above the filter frame, so that the filter device can be easily replaced after the connection plate is disassembled.

[0021] The utility model is further configured as follows: a mounting groove is provided on one side of the protection frame, and the motor is fixedly mounted on the inner side of the mounting groove.

[0022] By adopting the above technical solution, the installation groove is convenient for installing the motor, so that the protective frame can protect the motor.

[0023] The utility model is further configured as follows: the sealing and inflating ring is made of rubber material, and activated carbon and quartz sand are arranged on the inner side of the filtering device.

[0024] By adopting the above technical solution, the rubber material fits the wearer better and has better sealing performance, so that smoke is not easy to leak, and the filter device is convenient for filtering the smoke.

[0025] The beneficial effects of the utility model are:

[0026] 1. The utility model is a fume exhaust ventilation device for an electric welding machine. Through the filter assembly, the fume generated during welding can be driven by a motor to drive the drive shaft and the fan blades to rotate, so that the fan blades can inhale the fume from the inside of the fume protection cover to the inside of the filter frame after rotation, so that the filter device can filter the fume, and the filtered fume can be discharged through the exhaust pipe, so that the fume is not easy to pollute the air;

[0027] 2. The utility model is a smoke exhaust ventilation device for an electric welding machine. Through the provided operating components, before welding, the worker places the device to be welded from the right side of the smoke and dust protective cover and seals the flip plate. The worker wears the rear protective clothing, passes both hands through the inside of the sealing and inflatable ring, and controls the air pump to inflate the sealing and inflatable ring through the connecting pipe, so that the sealing and inflatable ring fits precisely with the worker's arm, so that the worker is not easy to smell the smoke during the welding process, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 The utility model is a structural schematic diagram of a smoke exhaust ventilation device for an electric welding machine.

[0030] Figure 2 The utility model is a partial structural schematic diagram of a smoke exhaust ventilation device for an electric welding machine.

[0031] Figure 3 The utility model discloses an exploded structural diagram of a smoke exhaust ventilation device for an electric welding machine.

[0032] Figure 4 The utility model discloses a cross-sectional structural diagram of a smoke exhaust ventilation device for an electric welding machine.

[0033] In the figure, 1. smoke and dust protection cover; 2. filter frame; 3. filter device; 4. connecting plate; 5. sealing strip; 6. exhaust duct; 7. fixing frame; 8. protection frame; 9. motor; 10. drive shaft; 11. fan blade; 12. air pump; 13. sealing inflation ring; 14. connecting pipe; 15. fixing groove; 16. air outlet groove; 17. sliding groove; 18. sealing groove; 19. threaded hole; 20. installation groove. DETAILED DESCRIPTION

[0034] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a smoke exhaust ventilation device for an electric welding machine, comprising a smoke protection cover 1, a filter frame 2 is fixedly installed on the rear side of the smoke protection cover 1, a filter device 3 is arranged on the inner side of the filter frame 2, a connecting plate 4 is arranged on the top of the filter frame 2, a sealing strip 5 is fixedly installed on the outer side of the connecting plate 4, an exhaust pipe 6 is fixedly installed on the rear side of the connecting plate 4, and a fixing frame 7 is fixedly installed on the inner side of the exhaust pipe 6; a filter component, the filter component is installed on the fixing frame 7; an operating component, the operating component is installed on the smoke protection cover 1.

[0035] In this embodiment, the filtering assembly includes a protective frame 8, a motor 9, a drive shaft 10 and fan blades 11. The protective frame 8 is fixedly mounted on the left side of the fixed frame 7, the motor 9 is fixedly mounted on the inner side of the protective frame 8, the drive shaft 10 is fixedly mounted on the output end of the motor 9, and the fan blades 11 are fixedly mounted around the outer side of the drive shaft 10.

[0036] In this embodiment, the operating components include an air pump 12, a sealing inflation ring 13 and a connecting pipe 14. The air pump 12 is fixedly installed at the bottom of the smoke and dust protective cover 1, the sealing inflation ring 13 is fixedly installed on the left and right sides of the front side of the smoke and dust protective cover 1, one end of the connecting pipe 14 is fixedly installed on the left and right sides of the front side of the air pump 12, and the other end of the connecting pipe 14 is fixedly installed on the outside of the connecting pipe 14.

[0037] In this embodiment, fixing grooves 15 are provided on the left and right sides of the front side of the smoke and dust protection cover 1 , and the sealing and inflating ring 13 is fixedly installed on the inner side of the fixing grooves 15 .

[0038] In this embodiment, an air outlet slot 16 is provided on the rear side of the smoke and dust protection cover 1 , and the filter frame 2 fits the air outlet slot 16 .

[0039] In this embodiment, a sliding groove 17 is provided on the top of the filter frame 2 , and the connecting plate 4 fits in the sliding groove 17 .

[0040] In this embodiment, a sealing groove 18 is formed inside the sliding groove 17 , and the outer diameter of the sealing strip 5 is the same as the inner diameter of the sealing groove 18 .

[0041] In this embodiment, threaded holes 19 are formed at the four corners of the top of the connecting plate 4 and the sliding groove 17 , and fixing bolts are installed in the inner threads of the threaded holes 19 .

[0042] In this embodiment, a mounting groove 20 is formed on one side of the protection frame 8 , and the motor 9 is fixedly mounted on the inner side of the mounting groove 20 .

[0043] In this embodiment, the sealing and inflating ring 13 is made of rubber, and activated carbon and quartz sand are arranged inside the filter device 3 .

[0044] The specific operation is that during the welding process, the smoke generated can be driven by the motor 9 to drive the drive shaft 10 and the fan blades 11 to rotate, so that the fan blades 11 can suck the smoke from the inner side of the smoke and dust protective cover 1 to the inner side of the filter frame 2 after rotation, so that the filter device 3 can filter the smoke, and the filtered smoke can be discharged through the exhaust pipe 6, so that the smoke is not easy to pollute the air; before welding, the staff will place the device to be welded from the right side of the smoke and dust protective cover 1, and seal the flip plate. The staff will wear protective clothing, pass both hands through the inside of the sealing and inflatable ring 13, and control the air pump 12 to inflate the sealing and inflatable ring 13 through the connecting pipe 14, so that the sealing and inflatable ring 13 fits precisely with the staff's arm, so that the staff will not easily smell the smoke during the welding process, thereby improving safety.

Claims

1. A fume exhaust ventilation device for an electric welding machine, characterized in that: include: A smoke and dust protection cover (1), wherein a filter frame (2) is fixedly mounted on the rear side of the smoke and dust protection cover (1), a filter device (3) is arranged on the inner side of the filter frame (2), a connecting plate (4) is arranged on the top of the filter frame (2), a sealing strip (5) is fixedly mounted on the outer side of the connecting plate (4), an exhaust pipe (6) is fixedly mounted on the rear side of the connecting plate (4), and a fixing frame (7) is fixedly mounted on the inner side of the exhaust pipe (6); A filter assembly, the filter assembly being mounted on a fixing frame (7); An operating component is mounted on the smoke and dust protection cover (1).

2. A smoke exhaust ventilation device for an electric welding machine according to claim 1, characterized in that: The filter assembly comprises a protective frame (8), a motor (9), a drive shaft (10) and fan blades (11); the protective frame (8) is fixedly mounted on the left side of the fixing frame (7); the motor (9) is fixedly mounted on the inner side of the protective frame (8); the drive shaft (10) is fixedly mounted on the output end of the motor (9); and the fan blades (11) are fixedly mounted around the outer side of the drive shaft (10).

3. A smoke exhaust ventilation device for an electric welding machine according to claim 1, characterized in that: The operating assembly comprises an air pump (12), a sealing inflation ring (13) and a connecting pipe (14); the air pump (12) is fixedly mounted on the bottom of the smoke and dust protection cover (1); the sealing inflation ring (13) is fixedly mounted on the left and right sides of the front side of the smoke and dust protection cover (1); one end of the connecting pipe (14) is fixedly mounted on the left and right sides of the front side of the air pump (12); and the other end of the connecting pipe (14) is fixedly mounted on the outside of the connecting pipe (14).

4. A smoke exhaust ventilation device for an electric welding machine according to claim 2, characterized in that: The smoke and dust protection cover (1) is provided with fixing grooves (15) on the left and right sides of the front side, and the sealing inflation ring (13) is fixedly installed on the inner side of the fixing groove (15).

5. A smoke exhaust ventilation device for an electric welding machine according to claim 1, characterized in that: An air outlet slot (16) is provided on the rear side of the smoke and dust protection cover (1), and the filter frame (2) is fitted with the air outlet slot (16).

6. A smoke exhaust ventilation device for an electric welding machine according to claim 1, characterized in that: A sliding groove (17) is provided on the top of the filter frame (2), and the connecting plate (4) fits in the sliding groove (17).

7. A smoke exhaust ventilation device for an electric welding machine according to claim 6, characterized in that: A sealing groove (18) is provided on the inner side of the sliding groove (17), and the outer diameter of the sealing rubber strip (5) is the same as the inner diameter of the sealing groove (18).

8. A smoke exhaust ventilation device for an electric welding machine according to claim 1, characterized in that: The four corners of the top of the connecting plate (4) and the sliding groove (17) are provided with threaded holes (19), and fixing bolts are threadedly installed on the inner sides of the threaded holes (19).

9. A smoke exhaust ventilation device for an electric welding machine according to claim 2, characterized in that: A mounting groove (20) is provided on one side of the protection frame (8), and the motor (9) is fixedly mounted on the inner side of the mounting groove (20).

10. A smoke exhaust ventilation device for an electric welding machine according to claim 3, characterized in that: The sealing and inflating ring (13) is made of rubber, and activated carbon and quartz sand are arranged on the inner side of the filtering device (3).

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