Welding fume purifier

Abstract

The invention discloses a welding fume purifier, and relates to the technical field of environmental protection equipment, the welding fume purifier comprises a casing, a gas guide pipe connected to the top of the casing in a penetrating manner, a filter cartridge distributed in the casing and a fan mounted at the bottom of the casing, and a cooling mechanism for intercepting high-temperature fume and welding slag is arranged in one end of the gas guide pipe; the cooling mechanism comprises a shielding part installed at one end in the air guide pipe, the shielding part penetrates out of the bottom of the air guide pipe, the middle of the shielding part is sleeved with a shielding ring, the shielding ring is fixed to the inner wall of the air guide pipe, and a filter screen is distributed at one end of the shielding part and fixed to the interior of the air guide pipe; a vibration mechanism for cleaning the filter cartridge is arranged in the shell; and a cleaning mechanism for cleaning the inner wall is further arranged in the air guide pipe. The welding fume purifier disclosed by the invention has the effects of efficiently self-cleaning and prolonging the service life of equipment.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection equipment, and in particular to a welding fume purifier. Background Art

[0002] The welding fume purifier is a purification device specially designed for industrial welding fume and light particles. It is light and flexible, easy to operate, and widely used by workers when performing welding operations. Since a large amount of toxic and harmful substances will be generated during welding operations and dispersed in the air, workers will inhale these toxic and harmful substances into their bodies through breathing, which will affect their health. Therefore, using equipment to absorb and purify the generated smoke can effectively remove welding smoke exhaust gas and create an excellent working environment.

[0003] When an existing welding fume purifier is actually used, the user is required to cover the air duct of the purifier over the top of the welding point to suck away the fume generated during welding. However, since the fume generated by welding has a relatively high temperature, welding will also produce a large amount of high-temperature welding slag. After the fume and welding slag enter the interior of the equipment along with the suction of the purifier, the high-temperature fume will increase the temperature inside the equipment, and long-term use will cause burns to the equipment. After the high-temperature welding slag enters the interior of the equipment, as time goes by, the temperature of the welding slag will decrease and adhere to the inner wall of the equipment, thereby affecting the normal operation and service life of the equipment. Summary of the invention

[0004] The invention discloses a welding fume purifier, aiming to solve the technical problem that when the existing welding fume purifier is actually used, welding fume and welding slag will enter the interior of the device along with the suction of the purifier, causing burn damage to the equipment and affecting the normal operation and service life of the equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A welding fume purifier comprises a casing, an air duct connected to the top of the casing, a filter cartridge distributed inside the casing, and a fan installed at the bottom of the casing, wherein a cooling mechanism for intercepting high-temperature fume and welding slag is arranged inside one end of the air duct, and the cooling mechanism comprises a shielding portion installed at one end of the air duct, the shielding portion penetrates from the bottom of the air duct, a shielding ring is sleeved and distributed in the middle of the shielding portion, the shielding ring is fixed to the inner wall of the air duct, a filter screen is distributed at one end of the shielding portion, and the filter screen is fixed inside the air duct;

[0007] A vibration mechanism for cleaning the filter cartridge is provided inside the housing;

[0008] The interior of the air guide tube is also provided with a cleaning mechanism for cleaning the inner wall;

[0009] The cooling mechanism is used to cool down and intercept the fume welding slag entering the air duct, and the air duct and the filter cartridge are cleaned in cooperation with the vibration mechanism and the cleaning mechanism.

[0010] On the basis of the traditional smoke purifier, a cooling mechanism is arranged inside the air duct to intercept high-temperature smoke and welding slag, thereby reducing the temperature of the smoke entering the equipment and intercepting the welding slag mixed in the smoke. At the same time, a vibration mechanism is arranged inside the casing to vibrate the filter cartridge regularly, thereby removing the dirt adhering to the filter cartridge. Along with the operation of the vibration mechanism and the cooling mechanism, an additional cleaning mechanism will be synchronously driven to utilize the collision with the air duct to shake off the welding slag and dust adhering to the air duct, thereby greatly improving the service life of the traditional smoke purifier and ensuring the stability of the equipment operation.

[0011] In a preferred embodiment, the cooling mechanism also includes a rotating shaft rotatably installed inside the shielding part, and both ends of the rotating shaft respectively pass through the interior of the shielding part, a first scraper rod is fixedly installed on one end of the rotating shaft, and a second scraper rod is fixedly installed on the other end of the rotating shaft, the first scraper rod is in compression contact with the outer surfaces of the shielding part and the shielding ring, and the second scraper rod is in compression contact with the outer surface of the filter, a cavity is opened inside the shielding part, and a water inlet pipe is connected to the bottom of the shielding part, and the water inlet pipe is connected to the interior of the cavity.

[0012] A shielding portion with a rotating shaft structure is provided at the air inlet end of the air duct, and water is introduced into the interior of the cavity by means of a water inlet pipe. The rotating shaft is driven to rotate by the water flow, and the rotating shaft will synchronously drive the first scraper rod and the second scraper rod to rotate, thereby wiping the outer surfaces of the shielding portion, the shielding ring and the filter screen. Water cooling is used to cool the flue gas entering the end of the air duct and intercept the high-temperature welding slag. At the same time, the filter screen is used to intercept large particles of dust and impurities in the continuously transported flue gas, thereby effectively preventing the high-temperature flue gas from having an adverse effect on the normal operation of the equipment and ensuring the service life of the equipment.

[0013] In a preferred embodiment, the vibration mechanism includes a fixed sleeve vertically fixed to the bottom of the filter cartridge, a half-gear transmission group and a bevel gear transmission group are rotatably installed inside the casing, a threaded rod is vertically fixed to the top of the half-gear transmission group, the threaded rod passes through the interior of the fixed sleeve and is threadedly connected to the fixed sleeve, a motor is installed on the outside of the casing, and the output end of the motor passes horizontally through the interior of the casing and is connected to the bevel gear transmission group.

[0014] A threaded rod driven by a half-gear transmission group is provided to cooperate with a fixed sleeve, and the filter cartridge is driven by a motor and a bevel gear transmission group to move vertically and drop rapidly at regular intervals, thereby generating a vibration force to clean off dust and impurities adhering to the outer surface of the filter cartridge, thereby ensuring the working efficiency of the equipment.

[0015] In a preferred embodiment, the cleaning mechanism includes a first knocking piece which is sleeved on the end of the rotating shaft, an extrusion ring plate is fixedly installed at one end inside the air duct, the first knocking piece and the extrusion ring plate are in extrusion contact, and a second knocking piece is fixedly installed on the top of the filter cartridge, and the second knocking piece is in extrusion contact with the inner wall of the other end of the air duct.

[0016] By setting up a first knocking member structure that is synchronously driven by the rotating shaft, and utilizing the shape characteristics of the rotation of the first knocking member and the extrusion ring plate, the first knocking member intermittently knocks the inner wall of the air duct. At the same time, along with the vertical movement of the filter cartridge, the second knocking member additionally arranged on the top of the filter cartridge will move synchronously and intermittently squeeze the inner wall of the air duct, causing both ends of the air duct to be affected by the vibration, thereby cleaning the dust and dirt adhering to the inside of the air duct, further ensuring the service life and working efficiency of the equipment.

[0017] In a preferred embodiment, a water outlet pipe is connected through the bottom of the shielding portion, and the water outlet pipe is connected through the inside of the cavity. Meanwhile, the water outlet pipe and the water inlet pipe are symmetrically distributed in the horizontal direction. A plurality of paddles are evenly fixed on the outside of the rotating shaft, and the paddles are distributed inside the cavity. Meanwhile, the paddles and the water inlet pipe are correspondingly distributed in the vertical direction.

[0018] By providing a water outlet pipe connected to the cavity and cooperating with the water inlet pipe to continuously introduce water flow into the interior of the cavity, the flowing water is utilized to cooperate with a plurality of paddles on the outer surface of the rotating shaft to push the rotating shaft to rotate continuously, thereby ensuring the integrity of the operation of the equipment.

[0019] In a preferred embodiment, a water seepage groove is provided inside the rotating shaft, and the water seepage groove passes through the sides of the first scraper rod and the second scraper rod respectively. A plurality of sponges are fixedly installed on the sides of the first scraper rod and the second scraper rod, and the sponges are respectively in compression contact with the outer surfaces of the shielding portion and the filter screen.

[0020] By providing a water seepage groove structure which is connected through the first scraper rod and the second scraper rod, the clean water inside the cavity can flow into the sponge arranged on the outer surface of the first scraper rod and the second scraper rod through the water seepage groove. Along with the rotation of the rotating shaft, the outer surface of the shielding part and the shielding ring is wiped with the wet sponge. On the one hand, the surface temperature of the shielding part and the shielding ring is reduced to ensure the cooling efficiency. On the other hand, the welding slag adhered to the outer surface of the shielding part and the shielding ring can be wiped off, thereby further ensuring the functionality and perfection of the equipment.

[0021] As can be seen from the above, the welding fume purifier provided by the present invention has the following improvements and advantages compared with the prior art:

[0022] Firstly, on the basis of the traditional welding fume purifier, a shielding part with a rotating shaft structure is provided at the air inlet end of the air duct, and water is introduced into the cavity through the water inlet pipe, and the rotating shaft is driven to rotate by the water flow. The rotating shaft will simultaneously drive the first scraper and the second scraper to rotate, and the clean water will be discharged through the seepage trough, so that the outer surface of the shielding part, the shielding ring and the filter can be wiped with a water sponge, and the smoke entering the end of the air duct can be cooled by water cooling and the high-temperature welding slag can be intercepted. At the same time, the filter can be used to intercept large particles of dust and impurities in the smoke that is being transported, thereby effectively preventing the high-temperature smoke from having adverse effects on the normal operation of the equipment and ensuring the service life and working efficiency of the equipment.

[0023] Secondly, on the basis of the rotating shaft, a first knocking piece structure driven synchronously by the rotating shaft is provided, and the shape characteristics of the first knocking piece rotating in coordination with the extrusion ring plate are utilized, so that the first knocking piece intermittently knocks the inner wall of the air duct. At the same time, as the filter cartridge is vertically driven by the half-gear transmission group and the threaded rod to clean the filter cartridge, a second knocking piece additionally provided on the top of the filter cartridge will move synchronously and intermittently squeeze the inner wall of the air duct, so that both ends of the air duct are vibrated by the operation of the knocking piece, thereby cleaning the dust and dirt adhering to the inside of the air duct, further ensuring the service life and working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a welding fume purifier proposed by the present invention.

[0025] Figure 2 This is a sectional view of the overall structure of a welding fume purifier proposed by the present invention.

[0026] Figure 3 A welding fume purifier proposed by the present invention Figure 2 A magnified view of the structure at center.

[0027] Figure 4This is a schematic structural diagram of a cooling mechanism of a welding fume purifier proposed by the present invention.

[0028] Figure 5 This is a cross-sectional view of the cooling mechanism structure of a welding fume purifier proposed by the present invention.

[0029] Figure 6 This is a schematic diagram of the rotating shaft structure of a welding fume purifier proposed by the present invention.

[0030] Figure 7 This is a cross-sectional view of the rotating shaft structure of a welding fume purifier proposed by the present invention.

[0031] Figure 8 This is a schematic diagram of the vibration mechanism structure of a welding fume purifier proposed by the present invention.

[0032] Fig. 9 This is a schematic diagram of the structure of a half-gear transmission group of a welding fume purifier proposed by the present invention.

[0033] In the figure: 1. casing; 2. air guide pipe; 3. filter cartridge; 4. fan; 5. cooling mechanism; 501. shielding part; 502. shielding ring; 503. filter screen; 504. rotating shaft; 505. first scraper; 506. second scraper; 507. cavity; 508. water inlet pipe; 509. water outlet pipe; 510. paddle; 511. water seepage trough; 512. sponge; 6. vibration mechanism; 601. fixing sleeve; 602. half gear transmission group; 603. threaded rod; 604. bevel gear transmission group; 605. motor; 606. belt; 7. cleaning mechanism; 701. first knocking piece; 702. extrusion ring plate; 703. second knocking piece; 8. hoop. DETAILED DESCRIPTION

[0034] 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 the embodiments.

[0035] A welding fume purifier disclosed in the present invention is mainly used in the scenario of purifying welding fume.

[0036] Reference Figures 1 to 9A welding fume purifier comprises a casing 1, an air duct 2 connected to the top of the casing 1, a filter cartridge 3 distributed inside the casing 1, and a fan 4 installed at the bottom of the casing 1, a cooling mechanism 5 for intercepting high-temperature fume and welding slag is arranged inside one end of the air duct 2, and the cooling mechanism 5 comprises a shielding portion 501 installed at one end of the air duct 2, the shielding portion 501 penetrates from the bottom of the air duct 2, a shielding ring 502 is sleeved and distributed in the middle of the shielding portion 501, and the shielding ring 502 is fixed to the inner wall of the air duct 2, and a filter screen 503 is distributed at one end of the shielding portion 501, and the filter screen 503 is fixed inside the air duct 2;

[0037] A vibration mechanism 6 for cleaning the filter cartridge 3 is provided inside the housing 1;

[0038] The air guide tube 2 is also provided with a cleaning mechanism 7 for cleaning the inner wall;

[0039] The cooling mechanism 5 is used to cool down and intercept the fume welding slag entering the air duct 2 , and the air duct 2 and the filter cartridge 3 are cleaned in cooperation with the vibration mechanism 6 and the cleaning mechanism 7 .

[0040] In this embodiment: when in use, the user pulls one end of the air duct 2 to the top of the welding point, and starts the entire device at the same time. The fan 4 is started, and air is sucked into the interior of the casing 1 through the air duct 2, and the flue gas entering the interior of the casing 1 is purified through the filter cartridge 3. At the same time, the cooling mechanism 5 and the vibration mechanism 6 are started, and the cooling mechanism 5 cools the high-temperature flue gas with water and filters large particles of dust and impurities in the flue gas, and intercepts the high-temperature welding slag, while the vibration mechanism 6 will intermittently drive the filter cartridge 3 to lift and fall rapidly, so that the filter cartridge 3 hits the inner wall of the casing 1, and the dust and impurities on the surface of the filter cartridge 3 are shaken off. When the cooling mechanism 5 and the vibration mechanism 6 are running, the cleaning mechanism 7 will be driven to run synchronously, so that the inner surface of the air duct 2 is cleaned by squeezing and knocking, and the dust and impurities adhering to the inner surface of the air duct 2 are shaken off.

[0041] In the above scheme, considering that the high-temperature smoke and welding slag entering the air duct 2 may damage the interior of the equipment, in order to prevent the service life of the equipment from being affected, the specific operation is as follows.

[0042] Reference Figures 1 to 7In a preferred embodiment, the cooling mechanism 5 also includes a rotating shaft 504 rotatably installed inside the shielding part 501, and both ends of the rotating shaft 504 respectively pass through the inside of the shielding part 501, and a first scraper rod 505 is fixedly installed on one end of the rotating shaft 504, and a second scraper rod 506 is fixedly installed on the other end of the rotating shaft 504. The first scraper rod 505 is in compression contact with the outer surfaces of the shielding part 501 and the shielding ring 502, and the second scraper rod 506 is in compression contact with the outer surface of the filter screen 503. A cavity 507 is opened inside the shielding part 501, and a water inlet pipe 508 is connected to the bottom of the shielding part 501, and the water inlet pipe 508 is connected to the inside of the cavity 507.

[0043] In this embodiment, when the high-temperature smoke and welding slag enters the interior of the air duct 2, it will directly impact the surfaces of the shielding portion 501 and the shielding ring 502. The shielding portion 501 and the shielding ring 502 will intercept the high-temperature welding slag. When the fan 4 is started, the water inlet pipe 508 will synchronously introduce clean water into the interior of the cavity 507. The clean water entering the interior of the cavity 507 will impact the rotating shaft 504, causing the rotating shaft 504 to rotate. The rotating shaft 504 will drive the first scraper rod 505 and the second scraper rod 506 to rotate synchronously. The rotating first scraper rod 505 will scrape the surfaces of the shielding portion 501 and the shielding ring 502, thereby scraping off the welding slag adhered to the surfaces of the shielding portion 501 and the shielding ring 502, and the rotating second scraper rod 506 will scrape off the filter. The surface of the mesh 503 is scraped, so that the dust and impurities on the surface of the filter 503 are scraped off; wherein, the bottom of the shielding portion 501 is connected with a water outlet pipe 509, and the water outlet pipe 509 is connected with the inside of the cavity 507, and the water outlet pipe 509 and the water inlet pipe 508 are symmetrically distributed in the horizontal direction, and a plurality of paddles 510 are evenly fixed on the outside of the rotating shaft 504, and the paddles 510 are distributed inside the cavity 507, and the paddles 510 and the water inlet pipe 508 are correspondingly distributed in the vertical direction; the clean water introduced into the cavity 507 through the water inlet pipe 508 will be discharged through the water outlet pipe 509, and the flowing water will impact the paddles 510 located on the outer surface of the rotating shaft 504, so that the paddles 510 drive the rotating shaft 504 to rotate synchronously.

[0044] Further, it is supplemented that: a plurality of clamps 8 are evenly fixed on the outer surface of the air guide tube 2, and the water inlet pipe 508 and the water outlet pipe 509 are both set up and placed from the bottom of the clamps 8, and the structural stability of the water inlet pipe 508 and the water outlet pipe 509 is enhanced by the clamps 8.

[0045] In the above scheme, considering that a large amount of dust and dirt will adhere to the surface of the filter cartridge 3 after long-term use, in order to ensure the working efficiency of the filter cartridge 3, the specific operation is as follows.

[0046] Reference Figure 2 , Figures 8 to 9In a preferred embodiment, the vibration mechanism 6 includes a fixed sleeve 601 vertically fixed to the bottom of the filter cartridge 3, a half gear transmission group 602 and a bevel gear transmission group 604 are rotatably installed inside the casing 1, a threaded rod 603 is vertically fixed to the top of the half gear transmission group 602, the threaded rod 603 penetrates into the interior of the fixed sleeve 601 and is threadedly connected to the fixed sleeve 601, a motor 605 is installed on the outside of the casing 1, and the output end of the motor 605 horizontally penetrates into the interior of the casing 1 and is connected to the bevel gear transmission group 604.

[0047] In this embodiment: the motor 605 located on the outer surface of the casing 1 will start regularly, and drive the half-gear transmission group 602 to rotate through the bevel gear transmission group 604. The rotating half-gear transmission group 602 will drive the threaded rod 603 to rotate synchronously. The rotating threaded rod 603 will vertically push the filter cartridge 3 to lift through the fixed sleeve 601 until the two half-gear structures in the half-gear transmission group 602 are out of meshing relationship. At this time, the filter cartridge 3 that has lost its restriction will drive the fixed sleeve 601 vertically down, and while falling, it will synchronously drive the threaded rod 603 and the single half-gear structure to rotate in the opposite direction until the two half-gear structures are re-engaged, and the half-gear transmission group 602 will restart operation, and in this reciprocating manner, the filter cartridge 3 is driven to lift and fall rapidly to generate shaking, so as to shake off the dust and impurities on the surface of the filter cartridge 3; wherein, a belt 606 is connected to the transmission sleeve between the half-gear transmission group 602 and the bevel gear transmission group 604.

[0048] In the above scheme, considering that the inner wall of the air duct 2 is to be cleaned, the specific operation is as follows.

[0049] Reference Figures 2 to 6 , Figure 8 In a preferred embodiment, the cleaning mechanism 7 includes a first knocking member 701 sleeved on the end of the rotating shaft 504, an extrusion ring plate 702 is fixedly installed at one end of the interior of the air duct 2, the first knocking member 701 and the extrusion ring plate 702 are in extrusion contact, and a second knocking member 703 is fixedly installed on the top of the filter cartridge 3, and the second knocking member 703 is in extrusion contact with the inner wall of the other end of the air duct 2.

[0050] In this embodiment: when the rotating shaft 504 rotates, it will synchronously drive the first knocking piece 701, and the rotating first knocking piece 701 will contact the extrusion ring plate 702, thereby performing deformation and elastic restoration, and knocking the inner surface of the air duct 2 while elastically restoring, causing the air duct 2 to shake, and the vertically moving filter cartridge 3 will drive the second knocking piece 703 to move synchronously, and the moving second knocking piece 703 will squeeze the folded inner surface of the air duct 2, thereby performing deformation and elastic restoration, and knocking the inner surface of the air duct 2 while elastically restoring, and cooperating with the first knocking piece 701 to clean the inner surface of the air duct 2.

[0051] In the above scheme, considering that the shielding part 501 and the shielding ring 502 which are in contact with the high-temperature flue gas for a long time will heat up, in order to ensure the working efficiency of the shielding part 501, the shielding ring 502 and the filter 503, the specific operation is as follows.

[0052] Reference Figures 5 to 7 In a preferred embodiment, a water seepage groove 511 is opened through the interior of the rotating shaft 504, and the water seepage groove 511 passes through the sides of the first scraper rod 505 and the second scraper rod 506 respectively. A plurality of sponges 512 are fixedly installed on the sides of the first scraper rod 505 and the second scraper rod 506, and the sponges 512 are respectively squeezed and contacted with the outer surfaces of the shielding portion 501, the shielding ring 502 and the filter screen 503.

[0053] In this embodiment: the clean water entering the cavity 507 will flow to the inside of the sponge 512 through the seepage groove 511, and wet the sponge 512. At the same time, along with the rotation of the rotating shaft 504, the wet sponge 512 will wipe the outer surface of the shielding part 501, the shielding ring 502 and the filter 503, thereby scraping off the adhered dirt, and at the same time use the water flow to cool the surface of the shielding part 501 and the shielding ring 502.

[0054] Working principle: When in use, the user pulls one end of the air duct 2 to the top of the welding point and starts the whole device at the same time. The fan 4 starts, and air is sucked into the interior of the casing 1 through the air duct 2, and the smoke entering the interior of the casing 1 is purified through the filter cartridge 3. When the high-temperature smoke welding slag enters the interior of the air duct 2, it will directly impact the surface of the shielding part 501 and the shielding ring 502. The shielding part 501 and the shielding ring 502 will intercept the high-temperature welding slag. When the fan 4 is started, the water inlet pipe 508 synchronously introduces clean water into the interior of the cavity 507 and flows out through the water outlet pipe 509. The clean water entering the interior of the cavity 507 will impact the paddle 5 on the outside of the rotating shaft 504. 10, causing the rotating shaft 504 to rotate, and the rotating shaft 504 will drive the first scraper 505 and the second scraper 506 to rotate synchronously. At the same time, the clean water entering the cavity 507 will flow through the seepage groove 511 to the inside of the sponge 512 on the outer surface of the first scraper 505 and the second scraper 506, wetting the sponge 512. At the same time, along with the rotation of the rotating shaft 504, the wet sponge 512 will wipe the outer surface of the shielding part 501, the shielding ring 502 and the filter 503, thereby scraping off the adhered dirt, and at the same time, the water flow will be used to cool the surface of the shielding part 501 and the shielding ring 502; and the motor 605 located on the outer surface of the casing 1 will be started regularly, The bevel gear transmission group 604 drives the half gear transmission group 602 to rotate, and the rotating half gear transmission group 602 drives the threaded rod 603 to rotate synchronously. The rotating threaded rod 603 vertically pushes the filter cartridge 3 to lift through the fixed sleeve 601 until the two half gear structures in the half gear transmission group 602 are out of meshing relationship. At this time, the filter cartridge 3 without restriction drives the fixed sleeve 601 to fall vertically, and while falling, it synchronously drives the threaded rod 603 and the single half gear structure to rotate in the opposite direction until the two half gear structures are re-engaged, and the half gear transmission group 602 starts to run again, and the filter cartridge 3 is driven to lift and fall rapidly to generate shaking, so that the filter cartridge 3 located at the filter The dust and impurities on the surface of the cylinder 3 are shaken off; and when the rotating shaft 504 rotates, it will synchronously drive the first knocking piece 701, and the rotating first knocking piece 701 will contact the extrusion ring plate 702, thereby performing deformation and elastic restoration, and knocking the inner surface of the air duct 2 while elastically restoring, causing the air duct 2 to shake, and the vertically moving filter cylinder 3 will drive the second knocking piece 703 to move synchronously, and the moving second knocking piece 703 will squeeze the folded inner surface of the air duct 2, thereby performing deformation and elastic restoration, and knocking the inner surface of the air duct 2 while elastically restoring, and cooperating with the first knocking piece 701 to clean the inner surface of the air duct 2.

[0055] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding fume purifier, comprising a housing (1), an air duct (2) connected to the top of the housing (1), a filter cartridge (3) distributed inside the housing (1), and a fan (4) installed at the bottom of the housing (1), characterized in that: A cooling mechanism (5) for intercepting high-temperature smoke and welding slag is arranged inside one end of the air guide pipe (2), the cooling mechanism (5) comprising a shielding portion (501) installed inside one end of the air guide pipe (2), the shielding portion (501) penetrates through the bottom of the air guide pipe (2), a shielding ring (502) is sleeved and distributed in the middle of the shielding portion (501), the shielding ring (502) is fixed to the inner wall of the air guide pipe (2), a filter screen (503) is distributed at one end of the shielding portion (501), and the filter screen (503) is fixed inside the air guide pipe (2); A vibration mechanism (6) for cleaning the filter cartridge (3) is arranged inside the casing (1); The air guide tube (2) is also provided with a cleaning mechanism (7) for cleaning the inner wall; The cooling mechanism (5) is used to cool down and intercept the fume welding slag entering the air duct (2), and the air duct (2) and the filter cartridge (3) are cleaned in cooperation with the vibration mechanism (6) and the cleaning mechanism (7).

2. A welding fume purifier according to claim 1, characterized in that: The cooling mechanism (5) further comprises a rotating shaft (504) rotatably mounted inside the shielding portion (501), two ends of the rotating shaft (504) respectively extending out from the inside of the shielding portion (501), a first scraper (505) fixedly mounted on one end of the rotating shaft (504), and a second scraper (506) fixedly mounted on the other end of the rotating shaft (504), the first scraper (505) being in compression contact with the outer surfaces of the shielding portion (501) and the shielding ring (502), the second scraper (506) being in compression contact with the outer surface of the filter screen (503), a cavity (507) being provided inside the shielding portion (501), a water inlet pipe (508) being through-connected to the bottom of the shielding portion (501), and the water inlet pipe (508) being through-connected to the inside of the cavity (507).

3. A welding fume purifier according to claim 1, characterized in that: The vibration mechanism (6) comprises a fixing sleeve (601) vertically fixed to the bottom of the filter cartridge (3); a half gear transmission group (602) and a bevel gear transmission group (604) are rotatably mounted inside the housing (1); a threaded rod (603) is vertically fixed to the top of the half gear transmission group (602); the threaded rod (603) penetrates into the interior of the fixing sleeve (601) and is threadedly connected to the fixing sleeve (601); a motor (605) is mounted on the outside of the housing (1); an output end of the motor (605) horizontally penetrates into the interior of the housing (1) and is connected to the bevel gear transmission group (604).

4. A welding fume purifier according to claim 2, characterized in that: The cleaning mechanism (7) comprises a first knocking member (701) sleeved on the end of the rotating shaft (504); an extrusion ring plate (702) is fixedly mounted on one end of the interior of the air guide tube (2); the first knocking member (701) and the extrusion ring plate (702) are in extrusion contact; a second knocking member (703) is fixedly mounted on the top of the filter cartridge (3); the second knocking member (703) is in extrusion contact with the inner wall of the other end of the air guide tube (2).

5. A welding fume purifier according to claim 2, characterized in that: A water outlet pipe (509) is connected through the bottom of the shielding portion (501), and the water outlet pipe (509) is connected through the inside of the cavity (507), while the water outlet pipe (509) and the water inlet pipe (508) are symmetrically distributed in the horizontal direction.

6. A welding fume purifier according to claim 5, characterized in that: A plurality of paddles (510) are evenly fixed on the outside of the rotating shaft (504), and the paddles (510) are distributed inside the cavity (507). Meanwhile, the paddles (510) and the water inlet pipes (508) are correspondingly distributed in the vertical direction.

7. A welding fume purifier according to claim 2, characterized in that: A water seepage groove (511) is provided through the interior of the rotating shaft (504), and the water seepage groove (511) penetrates through the side surfaces of the first scraping rod (505) and the second scraping rod (506) respectively.

8. A welding fume purifier according to claim 2, characterized in that: A plurality of sponges (512) are fixedly mounted on the side surfaces of the first scraper rod (505) and the second scraper rod (506), and the sponges (512) are in compression contact with the outer surfaces of the shielding portion (501) and the filter screen (503), respectively.

9. A welding fume purifier according to claim 3, characterized in that: A belt (606) is connected between the half gear transmission group (602) and the bevel gear transmission group (604).

10. A welding fume purifier according to claim 5, characterized in that: A plurality of hoops (8) are evenly fixed on the outer surface of the air guide pipe (2), and the water inlet pipe (508) and the water outlet pipe (509) are both laid out and placed from the bottom of the hoops (8).

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