Large workshop multi-station welding fume treatment equipment

Abstract

The invention belongs to the technical field of welding fume treatment, and discloses large workshop multi-station welding fume treatment equipment which comprises a filter box, the left side of an inner cavity of the filter box communicates with a gas storage tank, and the lower portion of the left side of an inner cavity of the gas storage tank communicates with a first pump machine; a gas inlet port of the first pump machine is communicated with a group of gas collecting hoods through an arranged gas inlet pipeline, and a water washing chamber is formed in the lower part of the filter box. Through cooperative design of the filter box, the exchange mechanism, the inner filter cartridge and the outer filter cartridge, the positions of the two filter cartridges can be exchanged, so that the filter cartridges have mobility, the utilization rate of the filter cartridges is improved, the practicability of the equipment is enhanced, the dust deposition speed is reduced, and the situation that when gas in the filter box enters from one side, dust deposition at the positions, close to inlets, of the filter cartridges is fast is avoided; the position, far away from the inlet, of the filter cartridge is relatively slow in dust deposition, and the filter cartridge is not flowable, so that the position, far away from the inlet, of the filter cartridge is relatively low in utilization rate, and the practicability of equipment is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of welding fume treatment, in particular to a large-scale workshop multi-station welding fume treatment device. Background Art

[0002] When operators perform welding operations in large workshops, welding rods come into contact with welding rods and generate smoke. This smoke contains iron filings, dust and toxic and harmful gases. When smoke floating in the air is inhaled into the human body, it will cause dizziness, chest tightness and shortness of breath. For the sake of personnel health and environmental protection, welding smoke generated at each workstation in large workshops is usually treated by welding smoke treatment equipment.

[0003] When the welding smoke equipment in the prior art is in use, although the smoke gas is transported to the filter cartridge in the filter box by a negative pressure suction pump, when the smoke gas passes through the inside of the filter cartridge, the dust carried in the smoke gas can be filtered and blocked inside by the filter cartridge. However, when the gas enters the filter box from one side, the position of the filter cartridge close to the inlet accumulates dust faster, and the position of the filter cartridge far from the inlet accumulates dust slower. The filter cartridge does not have fluidity, resulting in a low utilization rate of the position of the filter cartridge far from the inlet, which reduces the practicability of the equipment. Summary of the invention

[0004] Technical issues solved

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a large-scale workshop multi-station welding smoke treatment equipment, which has the advantages of convenient operation, good practicality and high filter cartridge utilization rate. Through the coordinated design of the filter box, replacement mechanism, inner filter cartridge, outer filter cartridge and other structures, the position of the two filter cartridges can be replaced, so that the filter cartridge has fluidity, the filter cartridge utilization rate is improved, the practicality of the equipment is enhanced, and the dust accumulation rate is reduced.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a large-scale workshop multi-station welding fume treatment equipment, comprising a filter box, the inner cavity of the filter box is connected to a gas storage tank on the left side, the inner cavity of the gas storage tank is connected to a first pump on the lower left side, the air inlet port of the first pump is connected to a group of air collecting hoods through an air inlet pipeline, a water washing chamber is provided at the lower part of the filter box, a second pump for conveying air in the inner cavity of the filter box to the water washing chamber is fixedly installed at the lower part of the front side wall of the filter box, an inner filter cartridge and an outer filter cartridge are respectively provided on the left and right sides of the inner cavity of the filter box, and a switching mechanism for switching the position of the inner filter cartridge and the outer filter cartridge is provided in the inner cavity of the filter box;

[0008] The exchange mechanism includes two mounting plates that move laterally on the left and right sides of the inner cavity of the filter box, and mounting grooves are respectively provided on the opposite surfaces of the two mounting plates. A replacement plate is provided in the inner cavity of the mounting groove, and a group of inner clamping blocks are fixedly installed on the side of the replacement plate away from the inner cavity of the mounting groove at equidistant circumference, and a group of outer clamping blocks are fixedly installed on the outer ring of a group of inner clamping blocks at equidistant circumference, and the left and right side walls of the inner filter cartridge are both equidistantly provided with inner clamping grooves that match the inner clamping blocks, and the left and right side walls of the outer filter cartridge are both equidistantly provided with outer clamping blocks that match the outer clamping blocks. The outer card slot, a connecting piece for conveying the welding fume gas in the gas storage tank to the inner cavity of the inner filter cartridge is arranged at the center of a mounting plate close to the first pump machine, and limiting pieces are arranged on the left and right sides of the inner filter cartridge and the inner cavities of the two mounting slots, and a mounting piece for lateral movement of the exchange plate is arranged in the inner cavity of the mounting slot, and a transmission mechanism for driving the exchange plate to rotate is arranged at the bottom of the inner cavity of the mounting slot, and a cleaning mechanism for cleaning dust in the inner filter cartridge and the outer filter cartridge is arranged on the side of the exchange plate away from the mounting slot;

[0009] The outer surface of the inner filter cartridge is slidably connected to the inner cavity of the outer filter cartridge. The inner filter cartridge and the outer filter cartridge are arranged between the two exchange plates. The shapes of the inner card slot and the outer card slot are arranged in opposite directions to each other. Hydraulic cylinders for driving the movement of the mounting plate are symmetrically fixedly installed on the upper left and right sides of the filter box.

[0010] In the above technical solution, preferably, the connecting piece includes an inner tube fixedly installed on the left side of the inner cavity of the filter box and connected to the gas outlet port of the gas storage tank, an inner sleeve slidably sleeved on the outer surface of the inner tube, an outer sleeve fixedly sleeved on the outer surface of the inner sleeve, and two vents symmetrically opened on the upper and lower sides of the right part of the inner cavity of the inner tube;

[0011] A mounting hole is provided at the center of a mounting plate close to the first pump, and the right side of the outer surface of the outer sleeve is fixedly connected to the inner cavity of the mounting hole.

[0012] In the above technical solution, preferably, the limiting member includes two groups of limiting rods symmetrically fixedly installed on the left and right sides of the inner filter cartridge and a group of limiting holes opened in the inner cavity of the installation groove; wherein, the limiting rods are adapted to the limiting holes, and the exchange plate is provided with an arc-shaped through hole adapted to the limiting rods.

[0013] In the above technical solution, preferably, the mounting member includes two compression spring rods symmetrically fixedly installed on the upper and lower sides of the inner cavity of the mounting groove and a rotating ring fixedly installed on the output ends of the two compression spring rods; wherein, the rotating ring is movably connected to the side wall of the exchange plate through a bearing.

[0014] In the above technical scheme, preferably, the transmission mechanism includes a connecting shell arranged at the lower part of the exchange plate, a connecting frame moving forward and backward in the inner cavity of the connecting shell, a connecting rod fixed to the bottom surface of the exchange plate, a reciprocating screw rod movably installed at the lower part of the inner cavity of the connecting shell through a bearing for driving the movement of the connecting frame, two docking wheels fixedly sleeved at the front and rear ends of the reciprocating screw rod, a docking track arranged on the bottom surface of the inner cavity of the mounting groove, and two locking members arranged on the front and rear side walls of the connecting shell and the front and rear sides of the reciprocating screw rod; wherein, the bottom surface of the docking wheel is movably connected to the upper surface of the docking track, the bottom surface of the docking track is connected to the bottom surface of the inner cavity of the mounting groove through two spring seats, the lower part of the connecting rod is movably connected to the inner cavity of the connecting frame, the bottom surface of the connecting shell is slidably connected to the bottom surface of the inner cavity of the mounting groove, a docking groove is provided on the bottom surface of the exchange plate, the upper parts of the left and right side walls of the connecting shell are movably connected to the left and right sides of the inner cavity of the docking groove respectively, and the top end of the connecting rod is fixedly connected to the top surface of the inner cavity of the docking groove.

[0015] In the above technical solution, preferably, the locking member includes a ratchet wheel fixedly sleeved on the outer surface of the reciprocating screw rod and a pawl hinged on the outer surface of the connecting shell and adapted to the ratchet wheel.

[0016] In the above technical solution, preferably, the cleaning mechanism includes two annular jet shells symmetrically arranged between the two exchange plates, a collecting shell arranged in the inner circle of the annular jet shell, a group of air bags equidistantly arranged on the outside of the annular jet shell in the circumferential direction, an annular diversion cavity arranged near the edge of the exchange plate, an annular collecting cavity arranged near the center of the exchange plate, a discharge shell arranged on the back sides of the two mounting plates, a dust collecting bag detachably mounted on the outlet end of the discharge shell by a clamp, a first connecting component arranged between the two exchange plates, and a second connecting component arranged between the two collecting shells;

[0017] Wherein, one end of the airbag is fixedly connected to the side wall of the exchange plate, and the air outlet of the airbag is communicated with the inner cavity of the annular diverter cavity, the air inlet of the airbag is communicated with an air supply pipe, and one end of the air supply pipe passes through the mounting plate, a one-way air inlet valve for introducing air into the annular diverter cavity is provided in the air outlet of the airbag, a one-way air inlet valve for introducing air into the airbag is provided in the air inlet of the air supply pipe, the annular diverter cavity is communicated with the inner cavity of the annular jet shell through a group of first hoses equidistantly arranged in the circumferential direction, the outer filter cartridge is located in the inner circle of the annular jet shell, the collecting shell is located in the inner circle of the inner filter cartridge, and the collecting A group of inclined material guide plates are fixedly installed on the outer side of the inner cavity of the collecting shell at equal intervals in the circumferential direction; the annular collecting chamber is connected to the inner cavity of the collecting shell through a group of second hoses arranged at equal intervals in the circumferential direction; the outer surface of the discharge shell is slidably connected to the inner cavity of the mounting plate left and right; the feed port of the discharge shell is movably connected to the side wall of the exchange plate front and back; a discharge hole connected to the inner cavity of the discharge shell is provided on one side of the inner cavity of the annular collecting chamber, and a sealing plate is provided at the discharge port of the discharge shell; discharge channels for loading and unloading the dust collecting bag are provided at the lower left and right sides of the inner cavity of the filter box, and sealing doors that can be opened, closed and locked are symmetrically provided on the left and right sides of the outer surface of the filter box.

[0018] In the above technical solution, preferably, the first connecting assembly includes a first annular block arranged between the two exchange plates, a group of two-stage first spring push rods are fixedly installed on the side wall of the exchange plate at equal intervals in the circumferential direction, the other end of the first spring push rod is fixedly connected to the side wall of the first annular block, and first connecting rods are symmetrically fixedly installed on the left and right side walls of the first annular block, one end of the first connecting rod is fixedly connected to the outer side wall of the annular jet shell, and one end of the airbag abuts against the side wall of the first annular block.

[0019] In the above technical solution, preferably, the second connecting assembly includes a second annular block arranged between the two collecting shells, second connecting rods are symmetrically fixedly installed at the edges of the left and right side walls of the second annular block, one end of the second connecting rod is fixedly connected to the outer wall of the collecting shell, and a group of two-stage second spring push rods are fixedly installed circumferentially and equidistantly on the left and right side walls of the second annular block near the center, and one end of the second spring push rod is fixedly connected to the side wall of the exchange plate.

[0020] Beneficial Effects

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] When the filter cartridge is fully inserted into the outer filter cartridge and overlapped, the outer clamping block on the left exchange plate enters the opening of the left outer clamping groove of the outer filter cartridge, and the inner clamping block on the right exchange plate enters the opening of the right inner clamping groove of the inner filter cartridge. Subsequently, the two installation plates can continue to move toward each other for a certain distance under the action of the installation parts, and the inner filter cartridge is limited by the limiter, which can prevent the inner filter cartridge and the outer filter cartridge from rotating. At the same time, the installation plate can drive the transmission mechanism to operate when it continues to move, and the two exchange plates are driven to rotate by the operation of the transmission mechanism. The rotation of the exchange plate on the left side drives the inner clamping block thereon to move from the inner cavity clamping position of the left inner clamping groove to the opening, and the rotation of the exchange plate on the right side drives the inner clamping block thereon to move from the inner cavity clamping position of the left inner clamping groove to the opening. When the two exchange plates move away from each other, the exchange plate on the left drives the outer filter cartridge to move to the left side of the inner cavity of the filter box, and the exchange plate on the right drives the inner filter cartridge to move to the right side of the inner cavity of the filter box, so as to realize the position exchange of the two filter cartridges, make the filter cartridge fluid, improve the utilization rate of the filter cartridge, enhance the practicality of the equipment, reduce the speed of dust accumulation, and solve the problem in the prior art that when the gas enters the filter box from one side, the position of the filter cartridge close to the inlet accumulates dust faster, the position of the filter cartridge far away from the inlet accumulates dust slower, and the lack of fluidity of the filter cartridge leads to low utilization rate of the position of the filter cartridge far away from the inlet, thereby reducing the practicality of the equipment.

[0023] 2. The present invention adopts the coordinated design of the mounting plate, the replacement plate, the cleaning mechanism and the like. When the two replacement plates move toward each other to replace the positions of the inner filter cartridge and the outer filter cartridge, the cleaning mechanism can back-blow and clean the dust from the outside of the outer filter cartridge and the inner filter cartridge, so that the dust accumulated on the inner cavity wall of the outer filter cartridge and the inner filter cartridge can be separated, and the separated dust accumulated can be collected. When the two replacement plates move away from each other, the positions of the inner filter cartridge and the outer filter cartridge are replaced and reset to the initial state, the operator can remove the dust collecting bag through the sealing door to clean the collected dust without affecting the normal operation of the equipment, avoiding the need to remove the filter cartridge from the equipment and then clean the dust accumulated therein, thereby improving the efficiency and effect of welding fume treatment, and at the same time avoiding that some equipment can clean the outer filter cartridge and the inner filter cartridge during operation, but it is not convenient to collect the cleaned dust, and the fallen dust accumulated is still inside the filter cartridge, and the dust cleaning effect is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2It is a partial front cross-sectional structural schematic diagram of the filter box and the replacement mechanism of the present invention;

[0026] Figure 3 It is a partial structural schematic diagram of the switching mechanism of the present invention;

[0027] Figure 4 This is a structural exploded view of the mounting plate, the replacement plate, the inner filter cartridge, and the outer filter cartridge of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the inner filter cartridge, the outer filter cartridge, the inner card slot, and the outer card slot of the present invention;

[0029] Figure 6 It is a partial front cross-sectional structural schematic diagram of the switching mechanism of the present invention;

[0030] Figure 7 It is a structural exploded view of the connecting piece of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the mounting plate, the replacement plate, the mounting member, and the discharge shell of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the transmission mechanism of the present invention.

[0033] In the figure: 1, filter box; 2, gas storage tank; 3, first pump; 4, gas collecting cover; 5, washing chamber; 6, second pump; 7, inner filter cartridge; 8, outer filter cartridge; 9, exchange mechanism; 91, mounting plate; 92, mounting slot; 93, exchange plate; 94, inner clamping block; 95, outer clamping block; 96, inner clamping slot; 97, outer clamping slot; 98, connecting piece; 99, limit piece; 910, mounting piece; 911, hydraulic cylinder; 10, transmission mechanism; 101, Connecting shell; 102, connecting frame; 103, connecting rod; 104, reciprocating screw rod; 105, docking wheel; 106, docking track; 11, cleaning mechanism; 111, annular jet shell; 112, collecting shell; 113, air bag; 114, annular diversion chamber; 115, air pipe; 116, dust collecting bag; 117, annular collecting chamber; 118, discharge shell; 12, locking member; 13, first connecting assembly; 14, second connecting assembly. DETAILED DESCRIPTION

[0034] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figures 1 to 9As shown, the present invention provides a large-scale workshop multi-station welding fume treatment equipment, including a filter box 1, the left side of the inner cavity of the filter box 1 is connected with a gas storage tank 2, the lower left side of the inner cavity of the gas storage tank 2 is connected with a first pump 3, the air inlet port of the first pump 3 is connected with a group of air collecting hoods 4 through an arranged air inlet pipeline, a water washing chamber 5 is opened at the lower part of the filter box 1, a purification liquid for chemically neutralizing harmful substances in welding fume is injected into the water washing chamber 5, a second pump 6 for conveying air in the inner cavity of the filter box 1 to the water washing chamber 5 is fixedly installed at the lower part of the front side wall of the filter box 1, an inner filter cartridge 7 and an outer filter cartridge 8 are respectively arranged on the left and right sides of the inner cavity of the filter box 1, and a switching mechanism 9 for switching the position of the inner filter cartridge 7 and the outer filter cartridge 8 is arranged in the inner cavity of the filter box 1;

[0036] The exchange mechanism 9 includes two mounting plates 91 that move laterally on the left and right sides of the inner cavity of the filter box 1, and mounting grooves 92 are respectively provided on the opposite surfaces of the two mounting plates 91. A replacement plate 93 is provided in the inner cavity of the mounting groove 92. A group of inner blocks 94 are fixedly installed on the side of the replacement plate 93 away from the inner cavity of the mounting groove 92 at equal distances in the circumferential direction, and a group of outer blocks 95 are fixedly installed on the outer circle of a group of inner blocks 94 at equal distances in the circumferential direction. The left and right side walls of the inner filter cartridge 7 are both circumferentially equidistantly provided with inner grooves 96 that match the inner blocks 94, and the left and right side walls of the outer filter cartridge 8 are both circumferentially equidistantly provided with outer blocks 95 that match the outer blocks 95. The card slot 97, a connecting piece 98 for conveying welding fume gas in the gas storage tank 2 to the inner cavity of the inner filter cartridge 7 is arranged at the center of a mounting plate 91 close to the first pump 3, and a limiting piece 99 is arranged on the left and right sides of the inner filter cartridge 7 and the inner cavities of the two mounting slots 92, and a mounting piece 910 for lateral movement of the exchange plate 93 is arranged in the inner cavity of the mounting slot 92, and a transmission mechanism 10 for driving the exchange plate 93 to rotate is arranged at the bottom of the inner cavity of the mounting slot 92, and a cleaning mechanism 11 for cleaning dust in the inner filter cartridge 7 and the outer filter cartridge 8 is arranged on the side of the exchange plate 93 away from the mounting slot 92;

[0037] The mounting member 910 includes two compression spring rods symmetrically fixedly mounted on the upper and lower sides of the inner cavity of the mounting groove 92 and a rotating ring fixedly mounted on the output ends of the two compression spring rods; wherein the rotating ring is movably connected to the side wall of the exchange plate 93 through a bearing;

[0038] The outer surface of the inner filter cartridge 7 is slidably connected to the inner cavity of the outer filter cartridge 8. The inner filter cartridge 7 and the outer filter cartridge 8 are arranged between two exchange plates 93. The shapes of the inner card slot 96 and the outer card slot 97 are arranged in opposite directions to each other. The upper parts of the left and right sides of the filter box 1 are symmetrically fixed with hydraulic cylinders 911 for driving the mounting plate 91 to move.

[0039] When in use, in the initial state, the first pump 3 is started to transport the welding fume gas to the gas storage tank 2 through the gas collecting hood 4, and the welding fume gas enters the inner cavity of the inner filter cartridge 7 and the outer filter cartridge 8 through the connecting piece 98. The dust in the welding fume gas is filtered by the inner filter cartridge 7 and the outer filter cartridge 8, and then the welding fume passes through the filter hole into the inner cavity of the filter box 1. The filtered welding fume is transported to the water washing chamber 5 for chemical neutralization through the second pump 6, and the two hydraulic cylinders 911 are started to drive the two mounting plates 91 to drive the exchange plate 93 to The two replacement plates 93 respectively drive the inner filter cartridge 7 and the outer filter cartridge 8 to move. When the inner filter cartridge 7 completely enters and overlaps the outer filter cartridge 8, the outer clamping block 95 on the left replacement plate 93 enters the opening of the outer clamping groove 97 on the left side of the outer filter cartridge 8, and the inner clamping block 94 on the right replacement plate 93 enters the opening of the inner clamping groove 96 on the right side of the inner filter cartridge 7. Subsequently, the two mounting plates 91 can continue to move toward each other for a certain distance under the action of the mounting member 910, and the inner filter cartridge 7 is limited by the limiting member 99, which can avoid the inner filter cartridge 7 from being blocked. The filter cartridge 7 and the outer filter cartridge 8 rotate, and the mounting plate 91 can drive the transmission mechanism 10 to operate when it continues to move. The transmission mechanism 10 drives the two exchange plates 93 to rotate. The exchange plate 93 on the left rotates to drive the inner card block 94 thereon to move from the inner cavity engagement position of the left inner card groove 96 to the opening, and the exchange plate 93 on the right rotates to drive the inner card block 94 thereon to engage from the opening of the right inner card groove 96 into the engagement position, thereby facilitating the separation of the inner filter cartridge 7 from the exchange plate 93 on the left, and at the same time, the inner filter cartridge 7 and The exchange plate 93 on the right is combined, and similarly, the outer filter cartridge 8 is separated from the exchange plate 93 on the right, and at the same time, the outer filter cartridge 8 is combined with the exchange plate 93 on the left. Then, when the two exchange plates 93 move away from each other, the exchange plate 93 on the left drives the outer filter cartridge 8 to move to the left side of the inner cavity of the filter box 1, and the exchange plate 93 on the right drives the inner filter cartridge 7 to move to the right side of the inner cavity of the filter box 1, which can realize the position exchange of the two filter cartridges, make the filter cartridge fluid, improve the utilization rate of the filter cartridge, enhance the practicability of the equipment, and reduce the speed of dust accumulation.

[0040] It should be noted that when the two exchange plates 93 move toward each other to exchange the positions of the inner filter cartridge 7 and the outer filter cartridge 8, the cleaning mechanism 11 can back-blow and clean the outer surface of the outer filter cartridge 8 and the inner filter cartridge 7, so that the dust attached to the inner cavity walls of the outer filter cartridge 8 and the inner filter cartridge 7 can be detached, and the detached dust can be collected at the same time, which is convenient for removing the collected dust, avoiding the need to remove the filter cartridge from the equipment and then clean the dust inside it, thereby improving the efficiency and effect of welding fume treatment, and at the same time avoiding the situation where some equipment can clean the inner surface of the outer filter cartridge 8 and the inner filter cartridge 7 during operation, but it is not convenient to collect the cleaned dust, and the fallen dust is still inside the filter cartridge, resulting in poor dust cleaning effect.

[0041] like Figure 6 and Figure 7As shown, the connecting member 98 includes an inner tube fixedly mounted on the left side of the inner cavity of the filter box 1 and connected to the gas outlet port of the gas storage tank 2, an inner sleeve slidably sleeved on the outer surface of the inner tube, an outer sleeve fixedly sleeved on the outer surface of the inner sleeve, and two vents symmetrically opened on the upper and lower sides of the right part of the inner cavity of the inner tube;

[0042] A mounting hole is provided at the center of a mounting plate 91 close to the first pump 3, and the right side of the outer surface of the outer sleeve is fixedly connected to the inner cavity of the mounting hole.

[0043] When in use, in the initial state, the welding smoke in the gas tank 2 can enter the filter cartridge through the inner tube and the vent. When the two mounting plates 91 move toward each other, the mounting plate 91 drives the outer sleeve to drive the inner sleeve to move, and the inner sleeve can close the vent to prevent the welding smoke from continuously entering the filter cartridge and affecting the normal operation of the cleaning mechanism 11.

[0044] like Figure 4 As shown, the limiting member 99 includes two sets of limiting rods symmetrically fixedly installed on the left and right sides of the inner filter cartridge 7 and a set of limiting holes opened in the inner cavity of the mounting groove 92; wherein, the limiting rods are adapted to the limiting holes, and an arc-shaped through hole adapted to the limiting rods is opened on the exchange plate 93.

[0045] When in use, after the limiting rod is combined with the limiting hole, the inner filter cartridge 7 and the outer filter cartridge 8 can be limited to prevent rotation, so that the exchange plate 93 can rotate to drive the clamping block to engage or separate with the clamping slot.

[0046] like Fig. 9 As shown, the transmission mechanism 10 includes a connecting shell 101 disposed at the lower part of the exchange plate 93, a connecting frame 102 that moves forward and backward in the inner cavity of the connecting shell 101, a connecting rod 103 fixed to the bottom surface of the exchange plate 93, a reciprocating screw 104 that is movably mounted at the lower part of the inner cavity of the connecting shell 101 through a bearing to drive the movement of the connecting frame 102, two docking wheels 105 that are fixedly sleeved on the front and rear ends of the reciprocating screw 104, a docking track 106 disposed on the bottom surface of the inner cavity of the mounting groove 92, and two locking members 12 disposed on the front and rear side walls of the connecting shell 101 and the front and rear sides of the reciprocating screw 104; wherein, the bottom surface of the docking wheel 105 is connected to the docking track 106. 06 is movably connected to the upper surface of the docking track 106, the bottom surface of the docking track 106 is connected to the bottom surface of the inner cavity of the mounting groove 92 through two spring seats, the lower part of the connecting rod 103 is movably connected to the inner cavity of the connecting frame 102, the bottom surface of the connecting shell 101 is slidably connected to the bottom surface of the inner cavity of the mounting groove 92, and a docking groove is provided on the bottom surface of the exchange plate 93. The upper parts of the left and right side walls of the connecting shell 101 are respectively movably connected to the left and right sides of the inner cavity of the docking groove, and the top of the connecting rod 103 is fixedly connected to the top surface of the inner cavity of the docking groove. The locking member 12 includes a ratchet fixedly mounted on the outer surface of the reciprocating screw rod 104 and a pawl hinged on the outer surface of the connecting shell 101 and adapted to the ratchet.

[0047] When in use, when the two exchange plates 93 respectively drive the inner filter cartridge 7 and the outer filter cartridge 8 to move and overlap, the mounting plate 91 can continue to move toward each other for a certain distance under the action of the mounting member 910, and the mounting plate 91 continues to move, driving the docking track 106 in the mounting groove 92 to move, so that the upper surface of the docking track 106 is in contact and squeezed with the bottom surface of the docking wheel 105, and after the docking track 106 contacts the docking wheel 105, it can drive the docking wheel 105 to rotate when moving, and the rotation of the docking wheel 105 drives the reciprocating screw 104 to rotate, and the rotation of the reciprocating screw 104 drives the connecting frame 102 to drive the connecting rod 103 to move, and the movement of the connecting rod 103 can drive the exchange plate 93 to rotate, so that the exchange plate 93 can drive the card block to engage or separate with the card slot.

[0048] like Figure 6 As shown, the cleaning mechanism 11 includes two annular jet shells 111 symmetrically arranged between two exchange plates 93, a collecting shell 112 arranged in the inner circle of the annular jet shell 111, a group of air bags 113 equidistantly arranged on the outside of the annular jet shell 111 in the circumferential direction, an annular diversion cavity 114 opened near the edge of the exchange plate 93, an annular collecting cavity 117 opened near the center of the exchange plate 93, a discharge shell 118 arranged on the back sides of the two mounting plates 91, a dust collecting bag 116 detachably mounted on the outlet end of the discharge shell 118 through a clamp, a first connecting component 13 arranged between the two exchange plates 93, and a second connecting component 14 arranged between the two collecting shells 112;

[0049] Among them, one end of the airbag 113 is fixedly connected to the side wall of the exchange plate 93, and the air outlet of the airbag 113 is connected to the inner cavity of the annular diverter cavity 114, the air inlet of the airbag 113 is connected to the air delivery pipe 115, and one end of the air delivery pipe 115 passes through the mounting plate 91, the air outlet of the airbag 113 is provided with a one-way air inlet valve for introducing air into the annular diverter cavity 114, the air inlet of the air delivery pipe 115 is provided with a one-way air inlet valve for introducing air into the airbag 113, and the annular diverter cavity 114 is connected to the annular jet shell 111 through a group of first hoses arranged equidistantly in the circumferential direction. The outer filter cartridge 8 is located in the inner circle of the annular jet shell 111, and the collection shell 112 is located in the inner circle of the inner filter cartridge 7. A group of inclined guide plates are fixedly installed on the outer side of the inner cavity of the collection shell 112 at equal intervals in the circumferential direction. The annular collection chamber 117 is connected to the inner cavity of the collection shell 112 through a group of second hoses arranged at equal intervals in the circumferential direction. The outer surface of the discharge shell 118 is connected to the inner cavity of the mounting plate 91 by sliding left and right. The feed port of the discharge shell 118 is movably connected to the side wall of the exchange plate 93 front and back. A discharge port connected to the inner cavity of the discharge shell 118 is provided on one side of the inner cavity of the annular collection chamber 117. The filter box 1 has a hole, and a sealing plate is provided at the discharge port of the discharge shell 118. The lower parts of the left and right sides of the inner cavity of the filter box 1 are provided with discharge channels for loading and unloading the dust collecting bag 116, and the left and right sides of the outer surface of the filter box 1 are symmetrically provided with sealing doors that can be opened and closed and locked. The first connecting component 13 includes a first annular block arranged between the two exchange plates 93. A group of two-stage first spring push rods are fixedly installed on the side wall of the exchange plate 93 at equal intervals in the circumferential direction. The other end of the first spring push rod is fixedly connected to the side wall of the first annular block. The left and right side walls of the first annular block are symmetrically fixed with first connecting rods. One end of the first connecting rod is fixedly connected to the outer wall of the annular jet shell 111, and one end of the airbag 113 abuts against the side wall of the first annular block. The second connecting assembly 14 includes a second annular block arranged between the two collecting shells 112. Second connecting rods are symmetrically fixedly installed at the edges of the left and right side walls of the second annular block. One end of the second connecting rod is fixedly connected to the outer wall of the collecting shell 112, and a group of two-stage second spring push rods are fixedly installed circumferentially equidistantly on the left and right side walls of the second annular block near the center. One end of the second spring push rod is fixedly connected to the side wall of the exchange plate 93.

[0050] When in use, when the two exchange plates 93 are close to each other and drive the inner filter cartridge 7 and the outer filter cartridge 8 to overlap, the exchange plates 93 squeeze the airbag 113, and the air in the airbag 113 is squeezed through the annular diversion cavity 114 and the first hose into the annular jet shell 111 and sprayed to the outer surface of the filter cartridge, which can back-blow and clean the filter cartridge, so that the dust attached to the inner cavity wall of the filter cartridge is removed. At the same time, the two exchange plates 93 move close to each other to increase the space between the mounting plate 91 and the inner cavity side wall of the filter box 1 and reduce the pressure to generate negative pressure. Under the action of negative pressure, the dust that falls off from the filter cartridge can be sucked into the dust collecting bag 116 through the discharge shell 118 and the annular collecting cavity 117 as well as the second hose and the collecting shell 112. When the two exchange plates 93 move away from each other to complete the position exchange of the inner filter cartridge 7 and the outer filter cartridge 8 and reset to the initial state, the operator can remove the dust collecting bag 116 through the sealing door to clean the collected dust without affecting the normal operation of the equipment.

[0051] The working principle and use process of the present invention:

[0052] When in use, first start the first pump 3 in the initial state to transport the welding fume gas to the gas storage tank 2 through the gas collecting hood 4, and the welding fume gas enters the inner cavity of the inner filter cartridge 7 and the outer filter cartridge 8 through the connecting piece 98. The dust in the welding fume gas is filtered by the inner filter cartridge 7 and the outer filter cartridge 8, and then the welding fume passes through the filter hole into the inner cavity of the filter box 1, and the filtered welding fume is transported to the washing chamber 5 for chemical neutralization through the second pump 6. When the filter cartridge position is replaced, start the two hydraulic cylinders 911 to drive the two mounting plates 91 to drive the exchange plate 93 to move toward each other. When the two mounting plates 91 move toward each other, the mounting plate 91 drives the outer sleeve to drive the inner sleeve to move, and the inner sleeve can close the vent hole. The two exchange plates 93 respectively drive the inner filter cartridge 7 moves with the outer filter cartridge 8. When the inner filter cartridge 7 completely enters the outer filter cartridge 8 and overlaps, the outer clamping block 95 on the left side of the exchange plate 93 enters the opening of the outer clamping groove 97 on the left side of the outer filter cartridge 8, and the inner clamping block 94 on the right side of the exchange plate 93 enters the opening of the inner clamping groove 96 on the right side of the inner filter cartridge 7. Subsequently, the two mounting plates 91 can continue to move toward each other for a certain distance under the action of the mounting member 910, and the inner filter cartridge 7 is limited by the limiting member 99 to prevent the inner filter cartridge 7 and the outer filter cartridge 8 from rotating. When the mounting plate 91 continues to move, it drives the docking track 106 in the mounting groove 92 to move, so that the upper surface of the docking track 106 contacts and squeezes the bottom surface of the docking wheel 105. After the docking track 106 contacts the docking wheel 105, it can drive the docking wheel 105 to move. The connecting wheel 105 rotates, and the connecting wheel 105 rotates to drive the reciprocating screw rod 104 to rotate. The reciprocating screw rod 104 rotates to drive the connecting frame 102 to drive the connecting rod 103 to move. The movement of the connecting rod 103 can drive the exchange plate 93 to rotate. The exchange plate 93 on the left rotates to drive the inner card block 94 thereon to move from the inner cavity engagement position of the left inner card slot 96 to the opening. The exchange plate 93 on the right rotates to drive the inner card block 94 thereon to engage with the opening of the inner card slot 96 on the right, thereby facilitating the separation of the inner filter cartridge 7 from the exchange plate 93 on the left, and the inner filter cartridge 7 is combined with the exchange plate 93 on the right. Similarly, the outer filter cartridge 8 is separated from the exchange plate 93 on the right, and the outer filter cartridge 8 is combined with the exchange plate 93 on the left. Then, when the two exchange plates 93 move away from each other When the two exchange plates 93 are close to each other and drive the inner filter cartridge 7 to overlap with the outer filter cartridge 8, the exchange plate 93 squeezes the airbag 113, and the air in the airbag 113 is squeezed through the annular diverter cavity 114 and the first hose into the annular jet shell 111 and is sprayed to the outer surface of the filter cartridge, so that the filter cartridge can be back-blown and the dust attached to the inner wall of the filter cartridge can be removed. At the same time, the two exchange plates 93 move close to each other to increase the space between the mounting plate 91 and the side wall of the inner cavity of the filter box 1, reduce the pressure, and generate negative pressure. Under the action of negative pressure,The dust accumulated inside the filter cartridge can be sucked into the dust bag 116 through the discharge shell 118 and the annular collection chamber 117 as well as the second hose and the collection shell 112. When the two exchange plates 93 move away from each other and complete the position exchange of the inner filter cartridge 7 and the outer filter cartridge 8 to reset to the initial state, the operator can remove the dust bag 116 through the sealed door to clean the collected dust.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large workshop multi-station welding fume treatment equipment, characterized in that: The invention comprises a filter box (1), wherein the left side of the inner cavity of the filter box (1) is connected to an air storage tank (2), the lower left side of the inner cavity of the air storage tank (2) is connected to a first pump (3), the air inlet port of the first pump (3) is connected to a group of air collecting hoods (4) through an air inlet pipeline, a water washing chamber (5) is provided at the lower part of the filter box (1), a second pump (6) for conveying air in the inner cavity of the filter box (1) to the water washing chamber (5) is fixedly installed at the lower part of the front side wall of the filter box (1), an inner filter cartridge (7) and an outer filter cartridge (8) are respectively provided on the left and right sides of the inner cavity of the filter box (1), and a switching mechanism (9) for switching the position of the inner filter cartridge (7) and the outer filter cartridge (8) is provided in the inner cavity of the filter box (1); The exchange mechanism (9) comprises two mounting plates (91) that move laterally on the left and right sides of the inner cavity of the filter box (1); mounting grooves (92) are respectively provided on the opposite surfaces of the two mounting plates (91); an exchange plate (93) is provided in the inner cavity of the mounting groove (92); a group of inner clamping blocks (94) are fixedly installed at circumferential intervals on the side of the exchange plate (93) away from the inner cavity of the mounting groove (92); a group of outer clamping blocks (95) are fixedly installed at circumferential intervals on the outer ring of a group of inner clamping blocks (94); inner clamping grooves (96) that are compatible with the inner clamping blocks (94) are circumferentially equidistantly provided on the left and right side walls of the inner filter cartridge (7); and outer clamping grooves (97) that are compatible with the outer clamping blocks (95) are circumferentially equidistantly provided on the left and right side walls of the outer filter cartridge (8). ), a connecting piece (98) for conveying welding fume gas in the gas storage tank (2) to the inner cavity of the inner filter cartridge (7) is arranged at the center of a mounting plate (91) close to the first pump (3), and limiting pieces (99) are arranged on the left and right sides of the inner filter cartridge (7) and the inner cavities of the two mounting grooves (92), and a mounting piece (910) for lateral movement of the exchange plate (93) is arranged in the inner cavity of the mounting groove (92), and a transmission mechanism (10) for driving the exchange plate (93) to rotate is arranged at the bottom of the inner cavity of the mounting groove (92), and a cleaning mechanism (11) for cleaning dust in the inner filter cartridge (7) and the outer filter cartridge (8) is arranged on the side of the exchange plate (93) away from the mounting groove (92); The outer surface of the inner filter cartridge (7) is slidably connected to the inner cavity of the outer filter cartridge (8); the inner filter cartridge (7) and the outer filter cartridge (8) are arranged between the two exchange plates (93); the shapes of the inner card slot (96) and the outer card slot (97) are arranged in opposite directions; hydraulic cylinders (911) for driving the mounting plate (91) to move are symmetrically fixedly mounted on the upper left and right sides of the filter box (1).

2. A large workshop multi-station welding fume treatment equipment according to claim 1, characterized in that: The connecting piece (98) comprises an inner tube fixedly mounted on the left side of the inner cavity of the filter box (1) and connected to the gas outlet port of the gas storage tank (2), an inner sleeve slidably mounted on the outer surface of the inner tube, an outer sleeve fixedly mounted on the outer surface of the inner sleeve, and two vents symmetrically arranged on the upper and lower sides of the right part of the inner cavity of the inner tube; A mounting hole is provided at the center of a mounting plate (91) close to the first pump (3), and the right side of the outer surface of the outer sleeve is fixedly connected to the inner cavity of the mounting hole.

3. The large workshop multi-station welding fume treatment equipment according to claim 1 is characterized by: The limiting member (99) comprises two groups of limiting rods symmetrically fixedly mounted on the left and right sides of the inner filter cartridge (7) and a group of limiting holes provided in the inner cavity of the mounting groove (92); wherein the limiting rods are matched with the limiting holes, and an arc-shaped through hole matched with the limiting rods is provided on the exchange plate (93).

4. The large workshop multi-station welding fume treatment equipment according to claim 1 is characterized by: The mounting member (910) comprises two compression spring rods symmetrically fixedly mounted on the upper and lower sides of the inner cavity of the mounting groove (92) and a rotating ring fixedly mounted on the output ends of the two compression spring rods; wherein the rotating ring is movably connected to the side wall of the exchange plate (93) via a bearing.

5. The large workshop multi-station welding fume treatment equipment according to claim 1 is characterized by: The transmission mechanism (10) comprises a connection shell (101) arranged at the lower part of the exchange plate (93), a connection frame (102) that moves forward and backward in the inner cavity of the connection shell (101), a connection rod (103) fixed to the bottom surface of the exchange plate (93), a reciprocating screw (104) movably mounted at the lower part of the inner cavity of the connection shell (101) through a bearing for driving the movement of the connection frame (102), two docking wheels (105) fixedly sleeved at the front and rear ends of the reciprocating screw (104), a docking track (106) arranged on the bottom surface of the inner cavity of the installation groove (92), and two docking wheels (105) arranged at the front and rear side walls of the connection shell (101) and the front and rear sides of the reciprocating screw (104). A locking member (12); wherein the bottom surface of the docking wheel (105) is movably connected to the upper surface of the docking track (106), the bottom surface of the docking track (106) is connected to the bottom surface of the inner cavity of the mounting groove (92) through two spring seats, the lower part of the connecting rod (103) is movably connected to the inner cavity of the connecting frame (102), the bottom surface of the connecting shell (101) is slidably connected to the bottom surface of the inner cavity of the mounting groove (92), the bottom surface of the exchange plate (93) is provided with a docking groove, the upper parts of the left and right side walls of the connecting shell (101) are movably connected to the left and right sides of the inner cavity of the docking groove respectively, and the top end of the connecting rod (103) is fixedly connected to the top surface of the inner cavity of the docking groove.

6. The large-scale workshop multi-station welding fume treatment equipment according to claim 5 is characterized by: The locking member (12) comprises a ratchet wheel fixedly sleeved on the outer surface of the reciprocating screw rod (104) and a pawl hinged on the outer surface of the connecting shell (101) and adapted to the ratchet wheel.

7. The large-scale workshop multi-station welding fume treatment equipment according to claim 1 is characterized by: The cleaning mechanism (11) comprises two annular jet shells (111) symmetrically arranged between the two exchange plates (93), a collecting shell (112) arranged in the inner circle of the annular jet shell (111), a group of air bags (113) equidistantly arranged on the outside of the annular jet shell (111) in the circumferential direction, an annular diversion cavity (114) arranged near the edge of the exchange plate (93), an annular collecting cavity (117) arranged near the center of the exchange plate (93), a discharge shell (118) arranged on the back sides of the two mounting plates (91), a dust collecting bag (116) detachably mounted on the outlet end of the discharge shell (118) by means of a clamp, a first connecting component (13) arranged between the two exchange plates (93), and a second connecting component (14) arranged between the two collecting shells (112); One end of the airbag (113) is fixedly connected to the side wall of the exchange plate (93), and the air outlet of the airbag (113) is in communication with the inner cavity of the annular diverter cavity (114); the air inlet of the airbag (113) is in communication with an air supply pipe (115), and one end of the air supply pipe (115) passes through the mounting plate (91); a one-way air inlet valve for introducing air into the annular diverter cavity (114) is provided in the air outlet of the airbag (113); a one-way air inlet valve for introducing air into the annular diverter cavity (114) is provided in the air inlet of the air supply pipe (115); the annular diverter cavity (114) is in communication with the inner cavity of the annular jet shell (111) through a group of first hoses equidistantly arranged in the circumferential direction; the outer filter cartridge (8) is located in the inner circle of the annular jet shell (111); the collecting shell (112) is located in the inner circle of the annular jet shell (111); In the inner circle of the filter cartridge (7), a group of inclined guide plates are fixedly installed at equal intervals on the outer side of the inner cavity of the collection shell (112); the annular collection chamber (117) is connected to the inner cavity of the collection shell (112) through a group of second hoses arranged at equal intervals in the circumference; the outer surface of the discharge shell (118) is slidably connected to the inner cavity of the mounting plate (91) left and right; the feed port of the discharge shell (118) is movably connected to the side wall of the exchange plate (93) front and back; a discharge hole is provided on one side of the inner cavity of the annular collection chamber (117) and is connected to the inner cavity of the discharge shell (118); and a sealing plate is provided on the discharge port of the discharge shell (118); discharge channels for loading and unloading the dust collecting bag (116) are provided at the lower parts of the left and right sides of the inner cavity of the filter box (1); and sealing doors that can be opened, closed and locked are symmetrically provided on the left and right sides of the outer surface of the filter box (1).

8. The large-scale workshop multi-station welding fume treatment equipment according to claim 7 is characterized by: The first connecting assembly (13) comprises a first annular block arranged between the two exchange plates (93), a group of two-stage first spring push rods are fixedly installed on the side wall of the exchange plate (93) at equal intervals in the circumferential direction, the other end of the first spring push rod is fixedly connected to the side wall of the first annular block, and first connecting rods are symmetrically fixedly installed on the left and right side walls of the first annular block, one end of the first connecting rod is fixedly connected to the outer side wall of the annular jet shell (111), and one end of the airbag (113) is in contact with the side wall of the first annular block.

9. The large workshop multi-station welding fume treatment equipment according to claim 7 is characterized by: The second connecting assembly (14) comprises a second annular block arranged between the two collecting shells (112), second connecting rods are symmetrically fixedly installed at the edges of the left and right side walls of the second annular block, one end of the second connecting rod is fixedly connected to the outer wall of the collecting shell (112), and a group of two-stage second spring push rods are fixedly installed at equidistant intervals on the left and right side walls of the second annular block near the center, and one end of the second spring push rod is fixedly connected to the side wall of the exchange plate (93).

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