Air humidification device

Abstract

The present invention relates to an air humidification device, and belongs to the technical field of air humidification. The present invention includes a top dust suction cover, an annular water distribution pipe, a plurality of water mist nozzles, a water pump, a smoke exhaust pipe, a box body, and a smoke exhaust filter assembly. The top dust suction cover is arranged above a welding workbench, the annular water distribution pipe surrounds the outer circumference of the top dust suction cover and is installed on the top dust suction cover, a plurality of water mist nozzles are installed on the annular water distribution pipe, the water pump is arranged below the table top of the welding workbench, the water outlet of the water pump is connected to a water supply pipe, the end of the water supply pipe facing away from the water pump is connected to the annular water distribution pipe, the smoke exhaust pipe is connected above the top dust suction cover, the box body is connected to the end of the smoke exhaust pipe, the smoke exhaust filter assembly includes a filter element assembly and a smoke exhaust fan, the filter element assembly is arranged in the inner cavity of the box body, and the smoke exhaust fan is installed on the top of the box body. The present invention can promote the sedimentation of smoke that escapes to the surroundings of the welding workbench, which is conducive to reducing air pollution in the working space.

Description

Technical Field

[0001] The invention relates to the technical field of air humidification, and in particular to an air humidification device. Background Art

[0002] Welding is a process of connecting two or more materials by heating, pressurizing or a combination of the two. It is widely used in manufacturing, construction, automotive, aerospace and other fields. A large amount of fume is generated during welding. The fume generated by welding contains harmful substances such as metal particles, oxides, fluorides, organic compounds, etc. Removing welding fume can reduce the risk of operators inhaling harmful substances and protect the health of operators.

[0003] In the prior art, the settling of welding fumes is promoted by humidifying the air near the welding area. For example, a welding processing table with an air humidification function is disclosed in the patent with authorization announcement number CN213245087U. The welding processing table includes a processing table, and a humidification component is arranged inside the processing table. The humidification component includes a water receiving trough, which is fixedly arranged on the upper part of the inner wall of the processing table, a wet film is arranged on the upper part of the water receiving trough, and a water distributor is arranged on the upper part of the wet film. The water distributor includes a fixed plate, a water flow trough is arranged on one side of the fixed plate, and a water spray port is arranged on one side of the water flow trough. The water spray port sprays water on the wet film to keep the wet film moist. After the air enters the workbench from the air inlet, it passes through the wet film and is discharged from the air outlet, thereby achieving the purpose of humidifying the air near the welding area.

[0004] However, in the above scheme, the humid gas generated is discharged from the air outlet holes on the side wall of the workbench and can only be discharged to one side of the workbench, while the smoke generated by welding will escape to the surroundings of the welding processing table. The humid air generated by the device cannot quickly escape to the surroundings of the welding workbench and be fully mixed with the welding smoke around the welding workbench in time, resulting in poor effect in promoting smoke deposition. Summary of the invention

[0005] The invention provides an air humidifying device to solve the technical problem that the humidifying structure arranged on a welding workbench in the prior art has a poor effect in promoting smoke settling.

[0006] In order to solve the above problems, the present invention provides an air humidification device adopting the following technical solution:

[0007] An air humidifying device, comprising:

[0008] A top dust suction cover is used to be arranged above the welding workbench and completely cover the welding workbench;

[0009] An annular water distribution pipe surrounds the outer circumference of the top dust suction cover and is installed on the top dust suction cover;

[0010] A plurality of water mist nozzles are installed on the annular water distribution pipe and are arranged at equal intervals along the extension path of the annular water distribution pipe, and the spray lines of the water mist nozzles are inclined from top to bottom toward the outer side of the top dust suction cover;

[0011] A water pump is arranged under the table of the welding workbench, the water outlet of the water pump is connected to a water delivery pipeline, and one end of the water delivery pipeline facing away from the water pump is connected to the annular water distribution pipeline;

[0012] A smoke exhaust duct is connected above the top dust suction cover and communicated with the inner cavity of the top dust suction cover;

[0013] The box is connected to the end of the smoke exhaust duct;

[0014] The smoke exhaust filter assembly includes a filter element assembly and a smoke exhaust fan. The filter element assembly is arranged in the inner cavity of the box, and the smoke exhaust fan is installed on the top of the box. The suction end of the smoke exhaust fan is connected with the inner cavity of the box, and the air outlet end is located outside the box. The filter element assembly is directly opposite to the suction end of the smoke exhaust fan. The smoke exhaust fan is used to suck out the water mist and welding fume above the welding workbench, so that the water mist and welding fume are discharged from the air outlet end of the smoke exhaust fan after passing through the top dust suction cover, the smoke exhaust pipe, the box and the filter element assembly.

[0015] By adopting the above technical scheme, multiple water mist nozzles on the annular water distribution pipe can spray water mist around the welding workbench, and the sprayed water mist can promote the sedimentation of the smoke escaping from the welding workbench to the surrounding areas of the welding workbench, and the sedimentation effect is better; the sprayed water mist can also serve as a shield to prevent the welding smoke from escaping outward, so that the smoke exhaust fan can draw away most of the smoke generated above the welding workbench for filtering, effectively avoiding a large amount of welding smoke escaping into the air and causing pollution; the spray line of the water mist nozzle is inclined from top to bottom toward the outside of the welding workbench, so that most of the water mist is sprayed to the outside of the welding workbench, and part of the water mist sprayed directly above the welding workbench is sucked away by the smoke exhaust fan along with the welding smoke, while increasing the humidity of the environment around the welding workbench, avoiding water mist falling on the welding workbench, resulting in excessive humidity at the welding position and adversely affecting the welding process.

[0016] Furthermore, the filter element assembly is movably mounted on the housing, the smoke exhaust fan is connected to a button that stops when pressed, and a dust removal motor is provided on the housing; the smoke exhaust filter assembly also includes a transmission assembly, a clutch assembly and a pusher; the transmission assembly is connected to the filter element assembly to drive the filter element assembly to move back and forth left and right when power is input; the clutch assembly includes an active gear ring and a driven gear ring connected to the power input end of the transmission assembly, the active gear ring is movably mounted on the housing and is transmission-connected to the dust removal motor to be driven to rotate; the pusher is movably mounted on the housing, one end of the pusher is directly opposite to the button, and the other end is fixedly connected to the active gear ring in a left and right position, and an elastic member is connected between the pusher and the housing to reset the pusher; a horizontally arranged push rod is also provided on the housing, the push rod is transmission-connected to the dust removal motor to be driven to rotate around a vertical axis, and when the push rod rotates, it pushes the pusher to move, so that the pusher presses on the button and pushes the active gear ring to engage with the driven gear ring to transmit power to the transmission assembly.

[0017] By adopting the above technical scheme, the dust removal motor can drive the active gear ring and the push rod to rotate when working. When the push rod rotates, the push member moves, and the push member is pressed onto the button of the smoke exhaust fan to stop the smoke exhaust fan. At the same time, the active gear ring is pushed to move so that it engages with the driven gear ring, thereby driving the driven gear ring to rotate. The driven gear ring drives the filter element assembly to move back and forth left and right through the transmission assembly, so that the welding smoke adsorbed on the outside of the filter element assembly falls off due to the shaking action, thereby cleaning the filter element assembly.

[0018] Furthermore, the smoke exhaust filter assembly also includes a horizontal baffle and a toggle assembly. The horizontal baffle is located in the inner cavity of the box and below the filter element assembly. The horizontal baffle divides the inner cavity of the box into a filter chamber and a dust storage chamber arranged in sequence up and down. The end of the horizontal baffle facing away from the push member is rotatably assembled on the box, and the rotation axis extends forward and backward. A toggle assembly is connected between the horizontal baffle and the push member. The toggle assembly includes a toggle rod, a slider and a movable rod. The toggle rod extends vertically and is fixedly connected to the push member. The bottom end of the toggle rod extends to the side of the horizontal baffle and is provided with a vertically extending slide groove. The slider is slidably assembled in the slide groove. One end of the movable rod is hinged on the slider, and the other end is hinged on the horizontal baffle. The height of the hinged position of the movable rod on the horizontal baffle is lower than the height of the rotation axis of the horizontal baffle.

[0019] By adopting the above technical solution, when the top rod pushes the pushing member to move, the pushing member drives the toggle rod to move synchronously, and the toggle rod drives the movable rod to move. Since the height of the hinge position between the movable rod and the horizontal baffle is lower than the height of the rotation axis of the horizontal baffle, the movable rod will drive the horizontal baffle to flip downward when it moves, thereby connecting the filter chamber and the dust storage chamber, and the welding smoke that falls from the filter element assembly can fall into the dust storage chamber. After the top rod and the pushing member are separated from the pushing relationship, the horizontal baffle is reset to separate the filter chamber and the dust storage chamber again, thereby preventing the welding smoke that falls off from the smoke exhaust fan from being sucked up again when the smoke exhaust fan works again.

[0020] Furthermore, a plurality of horizontal baffles are arranged in parallel on the left and right sides of the box body, and the movable rod has a plurality of connecting ends arranged at intervals on the left and right sides corresponding to the number of the horizontal baffles. Each connecting end is respectively hinged to each horizontal baffle, and the height of the hinged position is lower than the height of the rotation axis of the corresponding horizontal baffle.

[0021] By adopting the above technical solution, by setting up multiple horizontal baffles, the connecting ports between the filter chamber and the dust storage chamber formed when the horizontal baffles are flipped synchronously are distributed at multiple positions in the left and right directions, which is conducive to allowing the detached welding smoke to fall directly into the dust storage chamber through these connecting ports. Compared with only setting up one horizontal baffle, the time for the welding smoke to slide on the plate surface of the horizontal baffle can be shortened, ensuring that the welding smoke can fall into the dust storage chamber during the period when the push rod pushes the pushing member.

[0022] Furthermore, the box body has two inner cavities arranged symmetrically on the left and right, and two groups of smoke exhaust filter assemblies are provided. The two groups of smoke exhaust filter assemblies are symmetrically arranged on the left and right and are installed in the two inner cavities in the box body. The dust removal motor and the push rod are located between the two groups of smoke exhaust filter assemblies arranged symmetrically on the left and right. The dust removal motor is connected to the two active gear rings in the two groups of filter assemblies, and the push rod is used to push the two pushing members in the two groups of filter assemblies.

[0023] By adopting the above technical solution, when the push rod pushes one of the pushing members, the other pushing member is not pushed, and at least one side of the smoke exhaust fan is always in working state, the welding fume is always in a state of being extracted, and the welding process can continue.

[0024] Furthermore, the box body is provided with a one-way door directly facing the outlet of the smoke exhaust duct, and the one-way door can only be opened toward the inner cavity of the box body.

[0025] By adopting the above technical solution, a one-way door is set. The one-way door is opened toward the inner cavity of the box under the action of the negative pressure in the box only when the smoke exhaust fan is in working state, and is closed when the filter element assembly is in the shaking dust removal state, thereby preventing welding smoke from escaping into the smoke exhaust duct during the dust removal process.

[0026] Furthermore, the output shaft end of the dust removal motor is transmission-connected with a first-stage reduction gear set, and the output ends of the first-stage reduction gear set are respectively meshed and connected with a transmission gear set and a second-stage reduction gear set, and the transmission gear set includes a third transmission shaft extending left and right for outputting power, and an active gear ring is fixed on the third transmission shaft for rotation and movable left and right, and the power output end of the second-stage reduction gear set is connected with a belt transmission assembly, and the belt transmission assembly includes a driven pulley for outputting power, and one end of the push rod is coaxially fixed to the driven pulley.

[0027] By adopting the above technical solution, the transmission connection between the dust removal motor and the active gear ring and the transmission connection between the dust removal motor and the push rod are realized.

[0028] Furthermore, a roller is rotatably mounted on the end of the push rod.

[0029] By adopting the above technical solution, the sliding friction is converted into rolling friction by arranging the roller, so that the friction force can be reduced.

[0030] The air humidifying device provided by the present invention has the following beneficial effects: the present invention can promote the settling of smoke around the welding workbench, and can prevent a large amount of smoke from escaping, and has a good smoke exhaust effect. The present invention can make the smoke discharged after filtering, and can clean the filter element for filtering the smoke, and the cleaned smoke dust is stored in the dust storage chamber and will not be adsorbed on the filter element again, and has a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0032] Figure 1 A schematic diagram of the structure of an air humidifying device provided by the present invention;

[0033] Figure 2 A schematic diagram of the structure of a box and a filter assembly in an air humidification device provided by the present invention Figure 1 ;

[0034] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0035] Figure 4 A schematic diagram of the structure of a box and a filter assembly in an air humidification device provided by the present invention Figure 2 ;

[0036] Figure 5 A schematic diagram of the structure of a box in an air humidifying device provided by the present invention;

[0037] Figure 6 A schematic diagram of the structure of a clutch assembly and a transmission assembly in an air humidification device provided by the present invention Figure 1 ;

[0038] Figure 7 for Figure 6 Left view of

[0039] Figure 8A schematic diagram of the structure of a clutch assembly and a transmission assembly in an air humidification device provided by the present invention Figure 2 ;

[0040] Fig. 9 A schematic structural diagram of a pushing member in an air humidifying device provided by the present invention.

[0041] Description of reference numerals:

[0042] 1. Top dust cover; 2. Annular water distribution pipe; 3. Water mist nozzle; 4. Water delivery pipe; 5. Water pump; 6. Smoke exhaust pipe; 7. Smoke exhaust fan; 8. Dust removal motor; 9. Box; 901. Circular through hole; 902. Slide groove; 903. Filter chamber; 904. Dust storage chamber; 905. Air extraction port; 10. Fan mounting frame; 11. Motor mounting frame; 12. Welding workbench; 13. Vertical partition plate; 14. Bracket; 15. Filter element; 16. First gear; 17. Second gear; 18. Fourth bevel gear; 19. Third gear; 20. Fourth gear; 21. Second gear shaft; 22. Driving pulley; 23. First bevel gear; 24. Second bevel gear; 25. Second transmission shaft; 26 , rotating disk; 27, connecting rod; 28, first transmission shaft; 29, driven gear ring; 30, driving gear ring; 31, third bevel gear; 32, third transmission shaft; 33, button; 34, elastic member; 35, pushing member; 351, connecting rod; 352, arc-shaped bearing block; 353, push rod; 354, moving column; 355, horizontal connecting rod; 356, supporting block; 357, horizontal sliding rod; 358, arc-shaped jack; 36, top rod; 37, horizontal baffle; 38, toggle rod; 381, slide groove; 39, movable rod; 391, connecting end; 40, roller; 41, slider; 42, transmission belt; 43, driven pulley; 44, one-way door; 45, connecting sleeve; 46, circular limit plate. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0044] The following is one embodiment of an air humidifying device provided by the present invention:

[0045] like Figure 1-Figure 3 As shown, an air humidification device includes a top dust suction cover 1, an annular water distribution pipe 2, a water mist nozzle 3, a water pump 5, a smoke exhaust pipe 6, a box body 9, a smoke exhaust filter assembly, a dust removal motor 8 and a top rod 36.

[0046] like Figure 1 As shown, the top dust cover 1 is conical and is used to be arranged above the welding workbench 12. The top dust cover 1 is directly opposite to the welding workbench 12 up and down and completely covers the welding workbench 12. The top dust cover 1 is welded to the top of the vertical partition plate 13 above the welding workbench 12 to be fixed above the welding workbench 12.

[0047] The annular water distribution pipe 2 is in a square ring shape and is arranged around the outer edge of the bottom end of the top dust suction cover 1.

[0048] There are multiple water mist nozzles 3, which are all installed on the annular water distribution pipe 2 and are evenly spaced along the extension path of the annular water distribution pipe 2. The spray path of the water mist nozzle 3 is inclined from top to bottom toward the outside of the top dust suction cover 1, so that most of the water mist is sprayed to the outside of the welding workbench 12.

[0049] The water pump 5 is arranged under the table top of the welding workbench 12. A water tank is also provided under the table top of the welding workbench 12. The water tank is not shown in the figure. The water pump 5 can be placed in the water tank. The water inlet of the water pump 5 is immersed below the liquid level in the water tank. The water outlet of the water pump 5 is connected to the water supply pipe 4. The other end of the water supply pipe 4 extends upward and is connected to the annular water distribution pipe 2 to transport the water pumped by the water pump 5 to the annular water distribution pipe 2.

[0050] One end of the smoke exhaust pipe 6 is connected to the top of the top dust suction cover 1 and communicates with the space below the top dust suction cover 1 .

[0051] like Figure 5 As shown, the box body 9 is in the shape of a quadrangular prism, and a partition is provided inside the box body 9, which forms two symmetrical inner chambers inside the box body 9. An air extraction port 905 is provided on the rear side wall of the box body 9, and the air extraction port 905 is connected to both inner chambers. A one-way door 44 is provided at a position corresponding to the air extraction port 905 in each inner chamber. The one-way door 44 is directly opposite to the air extraction port 905 in the front-to-back direction and covers the air extraction port 905. The top end of the one-way door 44 is hinged on the rear side wall of the box body 9, and the bottom end extends to the bottom of the air extraction port 905, so that the one-way door 44 can only be turned toward the inner chamber of the box body 9 under the obstruction of the rear side wall of the box body 9. The end of the above-mentioned smoke exhaust pipe 6 facing away from the top dust cover 1 is connected to the air extraction port 905 on the box body 9.

[0052] A circular through hole 901 is provided at the top plate of the box body 9 at a position corresponding to each inner cavity, and two sliding grooves 902 facing each other are provided on the hole wall of the circular through hole 901, and the sliding grooves 902 extend in the left-right direction. A motor mounting frame 11 is also provided on the top of the box body 9, and the motor mounting frame 11 is located between the two circular through holes 901, and a spacing space is provided between the motor mounting frame 11 and the top surface of the box body 9.

[0053] like Figure 2-Figure 4 As shown, two groups of smoke exhaust filter assemblies are provided, and the two groups of smoke exhaust filter assemblies are arranged symmetrically on the box body 9. The smoke exhaust filter assembly includes a filter element assembly, a smoke exhaust fan 7, a transmission assembly, a clutch assembly, a pusher 35, a horizontal baffle 37 and a toggle assembly.

[0054] like Figure 2 , Figure 3 As shown, the filter element assembly includes a bracket 14 and a filter element 15. The bracket 14 is in a circular ring shape and is arranged in the above-mentioned circular through hole 901. The front and rear ends of the bracket 14 are respectively connected with a lug, and the two lugs are respectively inserted in two sliding grooves 902 so that the bracket 14 can be movably installed on the box body 9. The filter element 15 is cylindrical. The top end of the filter element 15 is connected to the bracket 14 by bolts, and the filter element 15 is located in the inner cavity of the box body 9.

[0055] like Figure 4 As shown, the exhaust fan 7 is installed on the top of the box 9 through the fan mounting frame 10, the air suction end of the exhaust fan 7 faces downward and directly faces the filter element 15, and the air outlet end of the exhaust fan 7 is located outside the box 9. The welding fume sucked by the exhaust fan 7 is filtered by the filter element 15 and then discharged from the air outlet end of the exhaust fan 7. A button 33 is provided on the fan mounting frame 10 on one side facing the other exhaust fan 7. The button 33 is connected to the control of the exhaust fan 7, and the button 33 can control the exhaust fan 7 to stop when pressed.

[0056] like Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the transmission assembly is arranged on the top of the housing 9, and the transmission assembly is located on the side of the filter element assembly close to another group of filter element assemblies. The transmission assembly includes a first transmission shaft 28, a first bevel gear 23, a second transmission shaft 25, a second bevel gear 24, a rotating disk 26 and a connecting rod 27.

[0057] The first transmission shaft 28 extends left and right and is rotatably mounted on the housing 9 , and the first bevel gear 23 is coaxially fixedly connected to one side of the first transmission shaft 28 facing the filter element assembly on the corresponding side.

[0058] The second transmission shaft 25 extends vertically and is rotatably mounted on the housing 9 . The second bevel gear 24 is coaxially fixed to the top end of the second transmission shaft 25 and meshes with the first bevel gear 23 .

[0059] The rotating disk 26 is coaxially fixed to the bottom end of the second transmission shaft 25, one end of the connecting rod 27 is hinged on the rotating disk 26, and a distance is provided between the hinge axis and the second transmission shaft 25, and the other end of the connecting rod 27 is hinged on the bracket 14. A crank slider mechanism is formed between the rotating disk 26, the connecting rod 27 and the bracket 14. When power is input to the first transmission shaft 28, the bracket 14 can be driven to move back and forth, so that the filter element 15 moves back and forth to shake off the smoke and dust adsorbed on the filter element 15.

[0060] The clutch assembly includes a driving gear ring 30 and a driven gear ring 29, which are arranged opposite to each other on the left and right sides, and meshing teeth are provided on the opposite sides of the driving gear ring 30 and the driven gear ring 29. Figure 6 As shown, the end of the driving gear ring 30 facing away from the driven gear ring 29 is connected to a connecting sleeve 45, and the end of the connecting sleeve 45 facing away from the driving gear ring 30 is connected to a circular stop plate 46, and the outer diameter of the circular stop plate 46 is larger than the outer diameter of the connecting sleeve 45. The driven gear ring 29 is fixedly connected to the first transmission shaft 28 on the side facing away from the corresponding filter element assembly.

[0061] like Figure 3 , Figure 8 , Fig. 9 As shown, the push member 35 includes a moving column 354 extending up and down, and a horizontal slide bar 357 is connected to the top of the moving column 354. A support frame is provided on the top of the box body 9, and the horizontal slide bar 357 is slidably mounted on the support frame. A push rod 353 is connected to one end of the horizontal slide bar 357 close to the moving column 354, and the push rod 353 is directly opposite to the button 33 on the corresponding side, so as to press the button 33 when the push member 35 is pushed. A horizontal connecting rod 355 is connected to the bottom end of the moving column 354, and an arc-shaped push block 352 is provided at one end of the horizontal connecting rod 355 facing away from the moving column 354, and a guide inclined plate is provided at each of the front and rear ends of the arc-shaped push block 352, and the guide inclined plate is used to guide the push rod 36 to slide to the middle of the arc-shaped push block 352 to push it.

[0062] An elastic member 34 for returning the pusher 35 to its original position is connected between the horizontal connecting rod 355 and the box body 9 . The elastic member 34 is a compression spring that can be extended and retracted in the left-right direction.

[0063] The front end of the moving column 354 is connected to a connecting rod 351 extending forward and backward, and the front end of the connecting rod 351 is provided with a supporting block 356 for supporting the active gear ring 30. The supporting block 356 is provided with an arc-shaped insertion hole 358 for inserting the circular limiting plate 46 connected to the active gear ring 30.

[0064] like Figure 4As shown, multiple horizontal baffles 37 are arranged side by side on the left and right, and the multiple horizontal baffles 37 are located in the inner cavity of the box body 9 and below the filter element assembly. The horizontal baffles 37 divide the inner cavity of the box body 9 into a filter cavity 903 and a dust storage cavity 904 arranged in sequence from top to bottom. One end of the horizontal baffle 37 facing away from the corresponding pusher 35 is rotatably assembled on the box body 9, and the rotation axis extends forward and backward.

[0065] like Figure 4 As shown, the toggle assembly includes a toggle rod 38, a slider 41 and a movable rod 39. The toggle rod 38 extends vertically and is fixedly connected to the pusher 35. The bottom end of the toggle rod 38 extends to the side of the horizontal baffle 37 and is provided with a vertically extending slide groove 381. The slider 41 is slidably assembled in the slide groove 381. One end of the movable rod 39 is hinged to the slider 41, and the other end is provided with a plurality of connecting ends 391 arranged at intervals on the left and right corresponding to the number of the horizontal baffles 37. Each connecting end 391 is hinged to each horizontal baffle 37, and the height of the hinge position is lower than the height of the rotation axis of the corresponding horizontal baffle 37, so that when the movable rod 39 moves, it can drive each horizontal baffle 37 to flip downward.

[0066] like Figure 2 As shown, the dust removal motor 8 is mounted on the motor mounting frame 11 at the top of the box body 9 and is located at the front side of the motor mounting frame 11. The output shaft end of the dust removal motor 8 faces downward and extends vertically.

[0067] like Figure 6 , Figure 7 As shown, the output shaft end of the dust removal motor 8 is connected to a primary reduction gear set, and the transmission output end of the primary reduction gear set is connected to a secondary reduction gear set.

[0068] The first-stage reduction gear set includes a first gear 16, a first gear shaft, a second gear 17 and a fourth bevel gear 18. The first gear 16 is connected to the output shaft end of the dust removal motor 8, the first gear shaft extends vertically and is rotatably assembled on the housing 9, and the first gear shaft is located at the rear side of the dust removal motor 8. The second gear 17 is coaxially fixed to the first gear shaft and meshes with the first gear 16, and the fourth bevel gear 18 is coaxially fixed to the top of the first gear shaft.

[0069] The secondary reduction gear set includes a third gear 19, a second gear shaft 21 and a fourth gear 20. The third gear 19 is coaxially fixed to the bottom end of the first gear shaft. The second gear shaft 21 extends vertically and is rotatably assembled on the housing 9. The second gear shaft 21 is located on the front side of the first gear shaft. The fourth gear 20 is coaxially fixed to the second gear shaft 21 and meshes with the third gear 19.

[0070] A transmission gear set is provided on each of the left and right sides of the fourth bevel gear 18, and the two transmission gear sets are symmetrical. The transmission gear set includes a third transmission shaft 32 and a third bevel gear 31. The third transmission shaft 32 extends in the left and right directions and is rotatably assembled on the housing 9. The third transmission shaft 32 is coaxial with the first transmission shaft 28 and is located on the side of the corresponding first transmission shaft 28 close to the dust removal motor 8. The third bevel gear 31 is coaxially fixed to the end of the third transmission shaft 32 away from the first transmission shaft 28, and the third bevel gear 31 is meshed with the fourth bevel gear 18. The above-mentioned active gear ring 30 is slidably mounted on the third transmission shaft 32, and the third transmission shaft 32 is provided with a bar-shaped protrusion extending left and right for limiting the rotation of the active gear ring 30.

[0071] like Figure 3 , Figure 8 As shown, the top rod 36 extends in the horizontal direction, and the top rod 36 is connected to the power output end of the secondary reduction gear set through a belt transmission assembly. The belt transmission assembly includes a driving pulley 22, a driven pulley 43 and a transmission belt 42. The driving pulley 22 is coaxially fixed to the bottom end of the second gear shaft 21, and the driven pulley 43 is rotatably assembled on the box body 9 and is located at the rear side of the driving pulley 22. The transmission belt 42 is sleeved outside the driving pulley 22 and the driven pulley 43. One end of the top rod 36 is coaxially fixed to the driven pulley 43, and the other end is rotatably assembled with a roller 40, and the rotation axis of the roller 40 extends vertically.

[0072] When the present invention is in use, during the welding process, the water pump 5 and the exhaust fan 7 are started, so that the water mist nozzle 3 sprays water mist around the welding workbench 12, increases the air humidity and forms a water curtain, blocks the welding fume above the welding workbench 12 from escaping to the surroundings, and accelerates the settling of some of the escaped welding fume. The exhaust fan 7 sucks a large amount of fume generated above the welding workbench 12 into the box 9 through the exhaust pipe 6, and then discharges it after being filtered by the filter element 15. At the same time, it also sucks away some of the water mist that escapes above the welding workbench 12, preventing the humidity above the welding workbench 12 from being too high and having an adverse effect on the welding process.

[0073] After the exhaust fan 7 has worked for a certain period of time, the filter element 15 needs to be cleaned. At this time, the dust removal motor 8 is started, and the dust removal motor 8 drives the push rod 36 to rotate, and the push rod 36 pushes the push member 35 to move. The push member 35 presses the button 33 to stop the exhaust fan 7, and at the same time, the clutch assembly is connected, so that the power of the dust removal motor 8 is transmitted to the transmission assembly, thereby driving the filter element assembly to move back and forth left and right, so that the welding smoke adsorbed on the filter element 15 falls off. At the same time, the toggle assembly also pushes the horizontal baffle 37 to flip downward under the drive of the push member 35, so that the fallen welding smoke falls into the dust storage chamber 904, so as to prevent the smoke from being sucked up again when the exhaust fan 7 works later.

[0074] Each time the push rod 36 rotates one circle, it pushes the push members 35 on both sides once, so that the two smoke exhaust fans 7 work in rotation. When one of the smoke exhaust fans 7 stops working, the other smoke exhaust fan 7 keeps working. In this way, there is always a smoke exhaust fan 7 in working condition, avoiding the phenomenon that both smoke exhaust fans 7 stop working and the welding fume cannot be sucked away, so that the welding process can be continued for a long time.

[0075] The present invention can evenly humidify the surroundings of the welding workbench 12, effectively promote the settling of welding fumes escaping from the welding workbench 12 to the surroundings, and can also avoid excessive humidity above the welding workbench 12 to adversely affect the welding process.

[0076] In this embodiment, two inner cavities are provided in the box body 9, and two groups of smoke exhaust filter components are provided on the box body 9 in a left-right symmetrical manner. In other embodiments, there is only one inner cavity in the box body 9, and in this case, only one group of smoke exhaust filter components is provided.

[0077] In this embodiment, each set of smoke exhaust filter components includes a plurality of horizontal baffles 37 arranged in sequence on the left and right. In other embodiments, each set of smoke exhaust filter components includes only one horizontal baffle 37 , and in this case, only one connecting end 391 is provided on the movable rod 39 .

Claims

1. An air humidifying device, characterized in that: include: A top dust suction cover is used to be arranged above the welding workbench and completely cover the welding workbench; An annular water distribution pipe surrounds the outer circumference of the top dust suction cover and is installed on the top dust suction cover; A plurality of water mist nozzles are installed on the annular water distribution pipe and are arranged at equal intervals along the extension path of the annular water distribution pipe, and the spray lines of the water mist nozzles are inclined from top to bottom toward the outer side of the top dust suction cover; A water pump is arranged under the table of the welding workbench, the water outlet of the water pump is connected to a water delivery pipeline, and one end of the water delivery pipeline facing away from the water pump is connected to the annular water distribution pipeline; A smoke exhaust duct is connected above the top dust suction cover and communicated with the inner cavity of the top dust suction cover; The box is connected to the end of the smoke exhaust duct; The smoke exhaust filter assembly includes a filter element assembly and a smoke exhaust fan. The filter element assembly is arranged in the inner cavity of the box body. The smoke exhaust fan is installed on the top of the box body. The air suction end of the smoke exhaust fan is connected with the inner cavity of the box body. The air outlet end is located outside the box body. The filter element assembly is directly opposite to the air suction end of the smoke exhaust fan. The smoke exhaust fan is used to suck out the water mist and welding fume above the welding workbench, so that the water mist and welding fume are discharged from the air outlet end of the smoke exhaust fan after passing through the top dust suction cover, the smoke exhaust pipe, the box body and the filter element assembly. The filter element assembly is movably assembled on the box body, the smoke exhaust fan is connected to a button that stops when pressed, and a dust removal motor is provided on the box body; the smoke exhaust filter assembly also includes a transmission assembly, a clutch assembly and a pusher; the transmission assembly is connected to the filter element assembly to drive the filter element assembly to move back and forth left and right when power is input; the clutch assembly includes an active gear ring and a driven gear ring connected to the power input end of the transmission assembly, the active gear ring is movably mounted on the box body and is transmission-connected to the dust removal motor to be driven to rotate; the pusher is movably mounted on the box body, one end of the pusher is directly opposite to the button, and the other end is fixedly connected to the active gear ring in a left and right position, and an elastic member for resetting the pusher is connected between the pusher and the box body; a horizontally arranged push rod is also provided on the box body, the push rod is transmission-connected to the dust removal motor to be driven to rotate around a vertical axis, and when the push rod rotates, it pushes the pusher to move, so that the pusher presses on the button and pushes the active gear ring to engage with the driven gear ring to transmit power to the transmission assembly; The smoke exhaust filter assembly also includes a horizontal baffle and a toggle assembly. The horizontal baffle is located in the inner cavity of the box and below the filter element assembly. The horizontal baffle divides the inner cavity of the box into a filter chamber and a dust storage chamber arranged in sequence up and down. The end of the horizontal baffle facing away from the push member is rotatably assembled on the box, and the rotation axis extends forward and backward. A toggle assembly is connected between the horizontal baffle and the push member. The toggle assembly includes a toggle rod, a slider and a movable rod. The toggle rod extends vertically and is fixedly connected to the push member. The bottom end of the toggle rod extends to the side of the horizontal baffle and is provided with a vertically extending slide groove. The slider is slidably assembled in the slide groove. One end of the movable rod is hinged on the slider, and the other end is hinged on the horizontal baffle. The height of the hinged position of the movable rod on the horizontal baffle is lower than the height of the rotation axis of the horizontal baffle.

2. An air humidifying device according to claim 1, characterized in that: The box body is provided with a plurality of horizontal baffles arranged in parallel on the left and right. The movable rod has a plurality of connecting ends arranged at intervals on the left and right corresponding to the number of the horizontal baffles. Each connecting end is hinged to each horizontal baffle respectively, and the height of the hinge position is lower than the height of the rotation axis of the corresponding horizontal baffle.

3. An air humidifying device according to any one of claims 1-2, characterized in that: The box body has two inner cavities arranged symmetrically on the left and right. Two groups of smoke exhaust filter assemblies are provided. The two groups of smoke exhaust filter assemblies are symmetrically arranged on the left and right and are installed in the two inner cavities in the box body. The dust removal motor and the push rod are located between the two groups of smoke exhaust filter assemblies arranged symmetrically on the left and right. The dust removal motor is connected to the two active gear rings in the two groups of filter assemblies through transmission, and the push rod is used to push the two pushing members in the two groups of filter assemblies.

4. An air humidifying device according to any one of claims 1-2, characterized in that: The box body is provided with a one-way door directly facing the outlet of the smoke exhaust pipe, and the one-way door can only be opened toward the inner cavity of the box body.

5. An air humidifying device according to any one of claims 1-2, characterized in that: The output shaft end of the dust removal motor is transmission-connected with a primary reduction gear set, and the output ends of the primary reduction gear set are respectively meshed and connected with a transmission gear set and a secondary reduction gear set, and the transmission gear set includes a third transmission shaft extending left and right for outputting power, and a driving gear ring is fixed on the third transmission shaft and movably sleeved left and right, and a power output end of the secondary reduction gear set is connected with a belt transmission assembly, and the belt transmission assembly includes a driven pulley for outputting power, and one end of the push rod is coaxially fixed to the driven pulley.

6. An air humidifying device according to any one of claims 1-2, characterized in that: The end of the push rod is rotatably equipped with a roller.

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