Waste gas treatment device

Abstract

The present invention discloses an exhaust gas treatment device, comprising an air intake cylinder, a first piston mechanism and a second piston mechanism, wherein a spray pipe is arranged in the air intake cylinder; the first piston mechanism comprises a first piston cylinder and a first piston slidably arranged in the first piston cylinder, an exhaust pipe is connected in the first piston cylinder, and one end of the first piston cylinder is connected to the air intake cylinder; the second piston mechanism comprises a second piston cylinder and a second piston slidably arranged in the second piston cylinder, a water outlet pipe is connected on the second piston cylinder, the water outlet pipe extends into the air extraction cylinder at one end away from the second piston cylinder and is connected to the spray pipe, and a water inlet pipe connected to an external water source is also arranged on the second piston cylinder; the device also comprises a crankshaft for simultaneously driving the first piston and the second piston to move. The present invention can simultaneously extract exhaust gas, pump water, discharge exhaust gas and spray exhaust gas, so that the spraying water volume changes in proportion to the air intake volume, thereby achieving the purpose of removing exhaust gas particles while well controlling the use of water resources.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device. Background Art

[0002] Exhaust gas contains many pollutants, such as particulate pollutants, VOCS and other substances. If they are directly discharged into the atmosphere, it will pollute the environment, so the generated exhaust gas needs to be purified. In the existing exhaust gas spray treatment device, the real-time water spraying amount and the exhaust gas intake amount are independently controlled during the spraying process. When the real-time water spraying amount is too much, it is easy to cause waste of water resources. When the real-time water spraying amount is too little, the solid particles in the exhaust gas cannot be fully removed. The present application relates to an exhaust gas treatment device to deal with the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide an exhaust gas treatment device to solve the above technical problems.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an exhaust gas treatment device, comprising an air intake cylinder, a first piston mechanism and a second piston mechanism, wherein a spray pipe is provided in the air intake cylinder;

[0005] The first piston mechanism comprises a first piston cylinder and a first piston, wherein the first piston is slidably disposed in the first piston cylinder, an air outlet pipe is connected in the first piston cylinder, one end of the first piston cylinder is connected to the air inlet cylinder, an exhaust gas chamber is formed between the first piston and the first piston cylinder, a one-way valve is provided between the exhaust gas chamber and the air inlet cylinder for only allowing the exhaust gas in the air inlet cylinder to enter the exhaust gas chamber, and a one-way valve is provided in the air outlet pipe for only allowing the exhaust gas in the exhaust gas chamber to be discharged from the air outlet pipe;

[0006] The second piston mechanism includes a second piston cylinder and a second piston. The second piston is movably arranged in the second piston cylinder. The second piston cylinder is connected with a water outlet pipe. The end of the water outlet pipe away from the second piston cylinder extends into the air inlet cylinder and is connected with the spray pipe. The second piston cylinder is also provided with a water inlet pipe connected with an external water source. A water storage chamber is formed between the second piston and the second piston cylinder. A one-way valve is provided between the water inlet pipe and the water storage chamber so that only the external water source can enter the water storage chamber. A one-way valve is provided between the water outlet pipe and the water storage chamber so that only the water in the water storage chamber can be discharged from the water outlet pipe.

[0007] It also includes a connecting component for connecting the first piston and the second piston at the same time, one end of the connecting component is connected to the crankshaft, and the crankshaft is driven to rotate by an external power device and simultaneously drives the first piston and the second piston to slide back and forth in the first piston cylinder and the second piston cylinder.

[0008] Preferably, the first piston mechanism, the second piston mechanism and the connecting component are symmetrically arranged in two groups, the crankshaft drives the two groups of connecting components to move in opposite directions, a fixed box is provided above the intake cylinder, and the first piston cylinder and the second piston cylinder are both fixed in the fixed box.

[0009] Preferably, the first piston cylinder and the second piston cylinder are coaxially arranged, and the second piston cylinder is arranged on the side of the first piston cylinder away from the air intake cylinder. The connecting component includes a first rod body and a second rod body. The first rod body is connected to the end of the first piston away from the air intake cylinder, and the second rod body is connected to the side of the second piston away from the first piston. The connecting component also includes a mouth frame, and the second piston cylinder is arranged on the inner side of the mouth frame. The end of the first rod body away from the first piston is connected to the bottom outer wall of the mouth frame, and the end of the second rod body away from the second piston is fixed to the top of the inner circumferential wall of the mouth frame. The crankshaft is hinged to the top outer wall of the mouth frame through a connecting rod.

[0010] Preferably, the first rod body is rotatably arranged at the bottom of the mouth frame, and a plurality of groups of first racks are provided on the outer peripheral side of the first rod body, and the number of teeth of the plurality of groups of first racks provided along the peripheral side of the first rod body gradually decreases; a rotating rod is rotatably arranged in the fixed box, and a gear meshing with the first rack is fixed on the rotating rod; a second rack is arranged above the first piston, and the second rack meshes with the gear located on the opposite side of the first rack; a driving component for driving the first rod body to rotate so that the gear meshes with a group of first racks on the first rod body is provided on the mouth frame; a cross bar is provided at the bottom of the second rack, and a vertical rod is provided at the end of the cross bar away from the second rack, and the bottom of the cross bar is fixedly connected to the first piston.

[0011] Preferably, the driving assembly includes a driving rod, a worm wheel and a worm, wherein one end of the first rod body is rotatably arranged on the frame and is provided with a worm wheel, the driving rod is rotatably arranged in the frame, the driving rod is located in the frame and is provided with a worm wheel meshing with the worm wheel, and one end of the driving rod is provided with a hexagonal groove.

[0012] Preferably, the inner wall of the fixed box is provided with a slide groove, and the two sides of the mouth frame are inserted into the slide groove to form an up and down sliding connection.

[0013] Preferably, a sliding groove for sliding connection of the vertical rod is provided on the inner wall of the first piston cylinder, and a long rod is provided in the middle of the cross rod, and the long rod is inserted into the middle of the first rod body to form a sliding connection.

[0014] Preferably, a connecting rod is provided at the bottom of the cross rod, and a stroke amplification component is provided between the second rod body and the second piston and between the connecting rod and the first piston, the stroke amplification component includes a stroke column and a stroke ring, the second rod body and the connecting rod are rotatably connected to the corresponding stroke column, the first piston cylinder and the second piston cylinder are provided with a first spiral groove on the inner wall, the outer wall of the stroke column is provided with a first guide shaft that forms a sliding connection with the first spiral groove, an annular groove for inserting the stroke ring is provided at the bottom of the stroke column, a second spiral groove is provided on the inner wall of the annular groove, and a second guide shaft that forms a sliding connection with the second spiral groove is provided on the outer wall of the stroke ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By setting the first piston mechanism and the second piston mechanism, and the first piston in the first piston mechanism and the second piston in the second piston mechanism move synchronously, water spraying can be performed when the exhaust gas is drawn in, and water pumping can be performed when the exhaust gas is exhausted. The amount of water pumped each time is just the best effect for spraying the amount of air pumped each time, avoiding the waste of water resources while ensuring the removal effect of particles in the exhaust gas;

[0017] The first piston mechanism and the second piston mechanism are both symmetrically arranged in two groups, and the crankshaft drives the first piston and the second piston in the symmetrically arranged first piston mechanism and the second piston mechanism to slide in opposite directions, so as to realize the continuous operation of exhaust gas extraction, exhaust gas discharge, water pumping and spraying;

[0018] A plurality of first racks with different numbers of teeth are arranged on the circumference of the second rod body, and the first racks with different numbers of teeth can be controlled to mesh with the gears, so as to change the travel of the first piston according to different types of the exhaust gas sucked in, thereby adaptively adjusting the amount of water sucked into the water storage chamber according to the amount of each exhaust gas sucked, and having a wide range of adaptability;

[0019] By setting a stroke amplification component, the crankshaft can be prevented from being too large, and the efficiency of exhaust and spraying can be improved, while the exhaust speed and water pumping speed can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the present invention highlighting the interior of the fixed box;

[0023] Figure 3 It is a schematic diagram of the structure of the meshing of the first rack, the gear and the second rack of the present invention;

[0024] Figure 4 is a cross-sectional schematic diagram of the present invention highlighting the stroke amplification component between the cross rod and the first piston;

[0025] Figure 5 is an exploded schematic diagram of the present invention highlighting the stroke amplification component;

[0026] Figure 6 is a cross-sectional schematic diagram of a stroke amplification component of the present invention;

[0027] Figure 7 is a cross-sectional schematic diagram of a spray pipe in an air intake cylinder of the present invention;

[0028] Figure 8 is a structural diagram of Embodiment 2 of the present invention;

[0029] Fig. 9 yes Figure 8 A magnified schematic diagram of part A;

[0030] Fig.10 It is an illustration of the present invention highlighting the water storage chamber;

[0031] Fig.11 It is an illustrative diagram highlighting the exhaust gas chamber of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Intake cylinder; 2. Spray pipe; 3. First piston cylinder; 4. First piston; 5. Exhaust pipe; 6. Exhaust chamber; 7. Intake pipe; 8. Second piston cylinder; 9. Second piston; 10. Water outlet pipe; 12. Water inlet pipe; 13. Water storage chamber; 14. Connecting parts; 141. First rod body; 142. Second rod body; 143. Mouth frame; 144. Connecting rod; 15. Crankshaft; 151. Belt pulley; 16. Fixed box; 17. First rack; 18. Rotating rod; 19. Gear; 20. Second rack; 21. Driving rod; 22. Worm wheel; 23. Worm; 24. Hexagon socket; 25. Opening; 26. Slide groove; 27. Cross bar; 28. Vertical bar; 29. ​​Slide groove; 30. Long bar; 31. Stroke amplification assembly; 311. Stroke column; 312. Stroke ring; 32. Connecting rod; 33. First spiral groove; 34. First guide shaft; 35. Annular groove; 36. Second spiral groove; 37. Second guide shaft; 38. First anti-rotation rod; 39. First rod groove; 40. Annular tooth; 41. Bracket groove; 43. Second anti-rotation rod; 44. Second rod groove. 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] See also Figure 1-11 , the present invention provides a first embodiment as follows:

[0036] See also Figure 1 , 2 3. An exhaust gas treatment device comprises an air intake cylinder 1, a first piston mechanism and a second piston mechanism, wherein a spray pipe 2 is arranged in the air intake cylinder 1;

[0037] The first piston mechanism comprises a first piston cylinder 3 and a first piston 4. The first piston 4 is slidably disposed in the first piston cylinder 3. An air outlet pipe 5 is connected to the first piston cylinder 3. One end of the first piston cylinder 3 is connected to the air inlet cylinder 1. An exhaust gas chamber 6 is formed between the first piston 4 and the first piston cylinder 3 (see Fig.11 ), a one-way valve is provided between the exhaust gas chamber 6 and the intake cylinder 1, which allows only the exhaust gas in the intake cylinder 1 to enter the exhaust gas chamber 6; an intake pipe 7 is connected between the first piston cylinder 3 and the intake cylinder 1, and the one-way valve is provided in the intake pipe 7; a one-way valve is provided in the outlet pipe 5, which allows only the exhaust gas in the exhaust gas chamber 6 to be discharged from the outlet pipe 5; when the first piston 4 moves to increase the space in the exhaust gas chamber 6, the exhaust gas will be drawn out from the intake cylinder 1; when the first piston 4 moves in the opposite direction to reduce the space in the exhaust gas chamber 6, the exhaust gas will be discharged from the outlet pipe 5;

[0038] The second piston mechanism includes a second piston cylinder 8 and a second piston 9. The second piston 9 is movably arranged in the second piston cylinder 8. A water outlet pipe 10 is connected to the second piston cylinder 8. The end of the water outlet pipe 10 away from the second piston cylinder 8 extends into the air inlet cylinder 1 and is connected to the spray pipe 2, wherein the spray pipe 2 can be arranged in a ring shape or in a horizontal and vertical staggered arrangement in the air inlet cylinder 1. Nozzles are evenly arranged at the bottom of the spray pipe 2. When no pressure is generated in the spray pipe 2, a certain amount of water can be stored in the spray pipe 2. When the pressure in the spray pipe 2 increases, water will be sprayed out from the nozzle. A water inlet pipe 12 connected to an external water source is also provided on the second piston cylinder 8. A water storage chamber 13 is formed between the second piston 9 and the second piston cylinder 8 (see Fig.10), a one-way valve is provided between the water inlet pipe 12 and the water storage chamber 13 so that only external water can enter the water storage chamber 13, and a one-way valve is provided between the water outlet pipe 10 and the water storage chamber 13 so that only water in the water storage chamber 13 can be discharged from the water outlet pipe 10. When the second piston 9 moves to increase the space in the water storage chamber 13, the external water source will be pumped into the water storage chamber 13. When the second piston 9 moves in the opposite direction to reduce the space in the water storage chamber 13, water will be discharged from the water outlet pipe 10 to the spray pipe 2 and sprayed out from the spray pipe 2 to spray the exhaust gas;

[0039] It also includes a connecting component 14 for simultaneously connecting the first piston 4 and the second piston 9, one end of the connecting component 14 is connected to the crankshaft 15, the crankshaft 15 is driven to rotate by an external power device and simultaneously drives the first piston 4 and the second piston 9 to slide back and forth in the first piston cylinder 3 and the second piston cylinder 8. In a preferred embodiment of the present invention, the external power is a belt pulley 151 that can drive the crankshaft 15 to rotate (it is an existing method, so no further details are given). The connecting component 14 connects the first piston 4 and the second piston 9, so that the actions of pumping water and pumping exhaust gas can be carried out simultaneously, and spraying and pumping gas can be carried out at the same time, which can achieve a good exhaust gas spraying effect while saving water.

[0040] Specifically, the first piston mechanism, the second piston mechanism and the connecting component 14 are symmetrically arranged in two groups, the crankshaft 15 drives the two groups of connecting components 14 to move in opposite directions, a fixed box 16 is arranged above the intake cylinder 1, the first piston cylinder 3 and the second piston cylinder 8 are both fixed in the fixed box 16, and the first piston mechanism, the second piston mechanism and the connecting component 14 are symmetrically arranged in two groups, which can realize the continuous operation of sucking exhaust gas, exhaust gas, pumping water and spraying. It should be noted that: the number of the first piston mechanism, the second piston mechanism and the connecting component 14 is not limited to two groups, as long as one or several groups of the first piston 4 and the second piston 9 move up at the same time, the other group or several groups of the first piston 4 and the second piston 9 move in the opposite direction to realize the continuous operation of sucking exhaust gas, exhaust gas, pumping water and spraying.

[0041] Specifically, the first piston cylinder 3 and the second piston cylinder 8 are coaxially arranged, and the second piston cylinder 8 is arranged on the side of the first piston cylinder 3 away from the air intake cylinder 1. The connecting component 14 includes a first rod body 141 and a second rod body 142. The second rod body 142 is connected to the end of the second piston 9 away from the air intake cylinder 1, and the first rod body 141 is connected to the side of the first piston 4 close to the second piston 9. The connecting component 14 also includes a mouth frame 143, and the second piston cylinder 8 is arranged on the inner side of the mouth frame 143. The first rod body 141 is away from the first One end of the piston 4 is connected to the outer wall of the bottom of the mouth frame 143, and the end of the second rod body 142 away from the second piston 9 is fixed to the top of the inner wall of the mouth frame 143. The crankshaft 15 is hingedly connected to the top outer wall of the mouth frame 143 through a connecting rod 144. By setting the mouth frame 143, the first rod body 141 is located at the upper end of the first piston 4 and the second rod body 142 is located at the upper end of the second piston 9. When the first piston 4 and the second piston 9 move at the same time, the exhaust chamber 6 and the water storage chamber 13 can maintain a better sealing effect.

[0042] See also Figure 2 , 3 4. In order to adjust the travel distance ratio of the first piston 4 and the second piston 9 according to the different types of exhaust gas drawn in, the first rod body 141 is rotatably arranged at the bottom of the mouth frame 143, and multiple groups of first racks 17 are arranged on the outer peripheral side of the first rod body 141. The number of teeth of the multiple groups of first racks 17 arranged along the peripheral side of the first rod body 141 gradually decreases. A rotating rod 18 is rotatably arranged in the fixed box 16, and a gear 19 meshing with the first rack 17 is fixed on the rotating rod 18. A second rack 20 is arranged above the first piston 4, and the second rack 20 is meshed with the gear 19 on the opposite side of the first rack 17. The mouth frame 143 is provided with a gear that drives the first rod body 141 to rotate, so that the gear 19 is meshed with a group of first racks on the first rod body 141. The driving assembly is meshed with the rack 17, the first rod body 141 moves and drives the first piston 4 to move through the meshing of the first rack 17, the second rack 20 and the gear 19, and by driving the first rack 17 with different numbers of teeth to mesh with the gear 19, the ratio of the movement of the first piston 4 for one stroke (moving from the lowest point to the highest point or from the highest point to the lowest point) to the movement of the second piston 9 for one stroke changes, so that the ratio of the amount of water sprayed each time to the amount of air intake can be changed according to the different types of gas drawn into the intake cylinder 1 each time (the particle size or quantity of particulate impurities contained in different types of exhaust gas is different), so as to save water while maintaining a good spraying effect on the exhaust gas.

[0043] See also Figure 3 , 4, the specific method of driving the first rod body 141 to rotate on the mouth frame 143 is as follows: the driving assembly includes a driving rod 21, a worm wheel 22 and a worm 23. The first rod body 141 is rotatably arranged on one end of the mouth frame 143 and is provided with a worm wheel 22. The driving rod 21 is rotatably arranged in the mouth frame 143. The position of the driving rod 21 in the mouth frame 143 is provided with a worm 23 meshing with the worm wheel 22. One end of the driving rod 21 is provided with an inner hexagonal groove 24. The driving rod 21 is rotated by an outer hexagonal wrench tool. With the cooperation of the worm wheel 22 and the worm 23, the first rod body 141 is driven to rotate, so that one group of first racks 17 is meshed with the gear 19. The first racks 17 with different numbers of teeth can be selected to mesh with the gear 19 according to the type of exhaust gas drawn into the intake pipe 1. It should be noted that: an opening 25 is provided on one side of the fixed box 16, and the outer hexagonal wrench can be inserted into the inner hexagonal groove 24 through the opening 25 to rotate the driving rod 21.

[0044] See also Figure 1 The inner wall of the fixed box 16 is provided with a slide groove 26, and the two sides of the mouth frame 143 are inserted into the slide groove 26 to form an up and down sliding connection, so that the mouth frame 143 is more stable when moving up and down.

[0045] See also Figure 2 , 3 4. A cross bar 27 is provided at the bottom of the second rack 20. A vertical bar 28 is provided at one end of the cross bar 27 away from the second rack 20. The cross bar 27 is fixedly connected to the first piston 4. A sliding groove 29 for sliding connection of the vertical bar 28 is provided on the inner wall of the first piston cylinder 3. It should be noted that: when the first piston 4 slides up and down, it will not pass through the sliding groove 29, so as to ensure the sealing of the exhaust gas chamber 6. A long rod 30 is provided in the middle of the cross bar 27. The long rod 30 is inserted into the middle of the first rod body 141 and forms a sliding connection, wherein the long rod 30 is columnar, and the long rod 30 can both slide and rotate in the first rod body 141. When the first rod body 141 rotates, the long rod 30 will not interfere. In the above manner, the first rod body 141 can remain more stable when the first piston 4 is driven to move through the first rack 17, the gear 19 and the second rack 20.

[0046] See also Figure 3-7In order to ensure that the first piston 4 and the second piston 9 have sufficient stroke and avoid using an oversized crankshaft 15, a connecting rod 32 is fixed to the bottom of the cross bar 27, and a stroke amplification component 31 is provided between the second rod body 142 and the second piston 9, and between the connecting rod 32 and the first piston 4. The stroke amplification component 31 includes a stroke column 311 and a stroke ring 312. The second rod body 142 and the connecting rod 32 are both rotatably connected to the corresponding stroke column 311. A first spiral groove 33 is provided on the inner wall of the first piston cylinder 3 and the second piston cylinder 8, and a first guide shaft 34 is provided on the outer wall of the stroke column 311 to form a sliding connection with the first spiral groove 33. The bottom of the stroke column 311 is provided with a travel ring 312 for supplying the stroke. 2 is inserted into the annular groove 35, the inner wall of the annular groove 35 is provided with a second spiral groove 36, and the outer wall of the stroke ring 312 is provided with a second guide shaft 37 that forms a sliding connection with the second spiral groove 36. By setting the stroke amplification component 31, when the crankshaft 15 drives the mouth frame 143 to move a certain stroke, the first piston 4 and the second piston 9 will move a larger stroke, which can avoid using an overly large crankshaft 15. In addition, when the crankshaft 15 drives the mouth frame 143 to move, the first piston 4 and the second piston 9 will produce an acceleration effect, which can increase the suction force of the intake cylinder 1 on the external exhaust gas, improve the exhaust gas spraying efficiency, increase the water absorption efficiency in the water storage chamber 13, and Increasing the spraying pressure can achieve a better effect of removing impurities inside the exhaust gas, and can accelerate the exhaust speed of the exhaust gas to reduce the situation where harmful substances in the exhaust gas adhere to the inner wall of the exhaust pipe 5. The above needs to be explained that: a first anti-rotation rod 38 (non-cylindrical) is arranged above the first piston 4, and the top of the first anti-rotation rod 38 passes through the stroke amplification component 31 between the cross bar 27 and the first piston 4 and is inserted into the connecting rod 32. The connecting rod 32 is provided with a first rod groove 39 for the first anti-rotation rod 38 to slide up and down, wherein the bottom of the connecting rod 32 is inserted into the stroke column 311 and forms a rotation connection with the stroke column 311. When the connecting rod 32 moves up and down following the cross bar 27, the first guide shaft 34 of the stroke column 311 The first piston 4 will rotate by being slidably connected with the first spiral groove 33 in the second piston cylinder 8. The rotation of the stroke column 311 will drive the stroke ring 312 to move up and down, thereby increasing the sliding stroke of the first piston 4 in the first piston cylinder 3. Since the first anti-rotation rod 38 is non-cylindrical, a bracket groove 41 is provided in the stroke column 311 for the first anti-rotation rod 38 to pass through, and the stroke column 311 will not be interfered by the first anti-rotation rod 38 when it rotates. In addition, a second anti-rotation rod (non-cylindrical) is provided on the top of the second piston 9, and a second rod groove 44 for the second anti-rotation rod 43 to slide is provided in the second rod body 142. When the second rod body 142 pulls the stroke column 311 to move, the second piston 9 can be prevented from rotating.

[0047] See also Figure 8 and 9 As shown, the second embodiment of the present invention is:

[0048] The difference between this embodiment and the first embodiment is that a plurality of groups of annular teeth 40 are provided on the outer circumferential wall of the first rod body 141 from bottom to top to replace the first rack 17. The arc lengths of the annular teeth located at the top of the first rod body 141 are different. The arc length of the annular teeth at the top of the first rod body 141 is the shortest. The arc lengths of the annular teeth arranged from the top to the bottom gradually increase and are arranged in a stepped manner until the arc length of the annular teeth 40 is 360° around the first rod body 141. The annular teeth can rotate on the first rod body 141. When the gear 19 is meshed with the annular teeth at different positions, the first rod 141 will not collide with the teeth of the gear 19 when it rotates, and the position where the gear 19 meshes with the annular teeth can be changed by rotating the first rod 141 to adjust the total number of annular teeth that the gear 19 meshes with after the first rod 141 moves one stroke, thereby adjusting the distance ratio of the first piston 4 moving one stroke to the second piston 9 moving one stroke; for example, the first rod 141 needs to be rotated one circle, and the first piston 4 moves one stroke to the second piston 9. There are six distance ratios for piston 9 to move a stroke. The angles of the multiple groups of annular teeth from the top of the first rod 141 to the bottom are 60°, 120°, 180°, 240°, 300°, and 0°, respectively. It should be noted that the number of teeth of each group of annular teeth can be multiple. After the first rod 141 rotates to change the meshing position of the gear 19, when the gear 19 passes through the annular teeth with an arc of 60° after the first rod 141 moves a stroke, the number of teeth of the gear 19 meshing is the largest, and then when the second piston 9 moves After a stroke distance, the first piston 4 moves a stroke distance to the maximum. When the gear 19 passes through the annular tooth with an arc of 0° after the first rod body 141 moves a stroke, the number of teeth engaged by the gear 19 is the least. Then, after the second piston 9 moves a stroke distance, the first piston 4 moves a stroke distance to the minimum. When rotating the first rod body 141 to switch the meshing position of the gear 19 and the annular tooth, it is necessary to rotate the first rod body 141 at the meshing position of the gear 19 and the complete annular tooth with an arc of 360°.

[0049] See also Figure 1-9 When the device is in use, firstly, the ratio of the stroke of the first piston 4 moving one stroke to the stroke of the second piston 9 is determined according to the type of exhaust gas drawn in, and the meshing position of the gear 19 and the annular teeth is determined. The driving rod 21 is rotated by inserting one end of the external hexagonal wrench into the internal hexagonal groove 24. The driving rod 21 rotates and drives the first rod body 141 to rotate through the linkage of the worm wheel 22 and the worm 23, so that the gear 19 meshes with the required annular teeth position.

[0050] Then, power is connected to the pulley 1513 to drive the crankshaft 152 to rotate, and the crankshaft 152 drives the mouth frame 143 to reciprocate. The reciprocating motion of the mouth frame 143 will make the first piston 4 and the second piston 9 reciprocate in the first piston cylinder 3 and the second piston cylinder 8 respectively. The first piston 4 reciprocates in the first piston cylinder 3 to produce suction and exhaust functions, and the second piston 9 reciprocates in the second piston cylinder 8 to produce water pumping and drainage spraying functions.

[0051] When the first piston 4 and the second piston 9 on one side are performing air suction and water pumping, the first piston 4 and the second piston 9 on the other side are performing exhaust and water discharge spraying, thus realizing reciprocating switching.

[0052] When the mouth frame 143 moves upward, the second rod body 142 will pull the stroke column 311 upward, and the upward movement of the stroke column 311 will cause the first guide shaft 34 to slide in the first spiral groove 33. Since the first rod body 141 is fixed to the mouth frame 143 and the stroke column 311 is rotatably connected to the first rod body 141, the sliding of the first guide shaft 34 in the first spiral groove 33 will cause the stroke column 311 to rotate. Since the top of the first piston 4 is provided with a long rod 30 (non-cylindrical) inserted into the first rod body 141, the rotation of the stroke column 311 will drive the stroke ring 3 through the cooperation of the second guide shaft 37 and the second spiral groove 36. 12 moves upward in the annular groove 35 to achieve the effect of increasing the movement stroke of the second piston 9. When the mouth frame 143 moves downward, the second rod body 142 will push the stroke column 311 to move downward. The stroke column 311 moves downward and rotates in the opposite direction. The reverse rotation of the stroke column 311 will drive the stroke ring 312 to move downward in the annular groove 35 through the cooperation of the second guide shaft 37 and the second spiral groove 36, thereby achieving the effect of increasing the movement stroke of the second piston 9. In addition, since an acceleration effect will be generated during the downward movement of the second piston 9, the pressure of the water sprayed by the spray pipe 2 can be increased, thereby achieving a better spraying effect on the exhaust gas.

[0053] Similarly, when the mouth frame 143 moves upward, the first rod body 141 moves upward, and the cross bar 27 is driven to move upward through the meshing of the gear 19 with the annular teeth and the second rack 20. The cross bar 27 moves upward and pulls the connecting rod 32 upward. The connecting rod 32 moves upward and increases the upward stroke of the first piston 4 through the stroke amplification component 31. The first piston 4 generates an acceleration effect during the upward movement through the stroke amplification component 31, which can increase the effect of exhaust gas extraction and improve the exhaust gas treatment efficiency. When the mouth frame 143 moves downward, the first rod body 141 The gear 19 meshes with the annular teeth and the second rack 20 respectively, which drives the cross bar 27 to move downward. The cross bar 27 moves downward and pushes the connecting rod 32 to move downward. The connecting rod 32 moves downward and increases the downward stroke of the first piston 4 through the stroke amplification component 31. The first piston 4 generates an acceleration effect during the downward movement through the stroke amplification component 31, which can increase the speed at which the exhaust gas is discharged from the exhaust pipe 5 to the next exhaust gas treatment process. Since the exhaust gas is discharged at a faster speed, the harmful impurities in the exhaust gas will be less likely to adhere to the exhaust pipe 5, thereby reducing the cleaning cycle.

[0054] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device, characterized in that: It comprises an air intake cylinder (1), a first piston mechanism and a second piston mechanism, wherein a spray pipe (2) is provided in the air intake cylinder (1); The first piston mechanism comprises a first piston cylinder (3) and a first piston (4), wherein the first piston (4) is slidably disposed in the first piston cylinder (3), an outlet pipe (5) is connected to the first piston cylinder (3), one end of the first piston cylinder (3) is connected to the intake cylinder (1), an exhaust gas chamber (6) is formed between the first piston (4) and the first piston cylinder (3), a one-way valve is provided between the exhaust gas chamber (6) and the intake cylinder (1) for allowing only the exhaust gas in the intake cylinder (1) to enter the exhaust gas chamber (6), and a one-way valve is provided in the outlet pipe (5) for allowing only the exhaust gas in the exhaust gas chamber (6) to be discharged from the outlet pipe (5); The second piston mechanism comprises a second piston cylinder (8) and a second piston (9). The second piston (9) is movably arranged in the second piston cylinder (8). The second piston cylinder (8) is connected to a water outlet pipe (10). The end of the water outlet pipe (10) away from the second piston cylinder (8) extends into the air inlet cylinder (1) and is connected to the spray pipe (2). The second piston cylinder (8) is also provided with a water inlet pipe (12) connected to an external water source. A water storage chamber (13) is formed between the second piston (9) and the second piston cylinder (8). A one-way valve is provided between the water inlet pipe (12) and the water storage chamber (13) so as to allow only water from the external source to enter the water storage chamber (13). A one-way valve is provided between the water outlet pipe (10) and the water storage chamber (13) so as to allow only water in the water storage chamber (13) to be discharged from the water outlet pipe (10). It also includes a connecting component (14) for connecting the first piston (4) and the second piston (9) at the same time, one end of the connecting component (14) is connected to a crankshaft (15), and the crankshaft (15) is driven by an external power device to rotate and simultaneously drive the first piston (4) and the second piston (9) to slide back and forth in the first piston cylinder (3) and the second piston cylinder (8); The first piston mechanism, the second piston (9) mechanism and the connecting component (14) are symmetrically arranged in two groups, the crankshaft (15) drives the two groups of connecting components (14) to move in opposite directions, a fixed box (16) is arranged above the intake cylinder (1), and the first piston cylinder (3) and the second piston cylinder (8) are both fixed in the fixed box (16); The first piston cylinder (3) and the second piston cylinder (8) are coaxially arranged, and the second piston cylinder (8) is arranged on a side of the first piston cylinder (3) away from the air intake cylinder (1). The connecting component (14) comprises a first rod body (141) and a second rod body (142). The first rod body (141) is connected to an end of the first piston (4) away from the air intake cylinder (1), and the second rod body (142) is connected to a side of the second piston (9) away from the first piston (4). The connecting component (14) further comprises a mouth frame (143). The second piston cylinder (8) is arranged on the inner side of the mouth frame (143). An end of the first rod body (141) away from the first piston (4) is connected to the bottom outer wall of the mouth frame (143), and an end of the second rod body (142) away from the second piston (9) is fixed to the top of the inner peripheral wall of the mouth frame (143). The crankshaft (15) is hingedly connected to the top outer wall of the mouth frame (143) via a connecting rod (144). The first rod body (141) is rotatably arranged at the bottom of the mouth frame (143); a plurality of groups of first racks (17) are arranged on the outer peripheral side of the first rod body (141); the number of teeth of the plurality of groups of first racks (17) arranged along the peripheral side of the first rod body (141) gradually decreases; a rotating rod (18) is rotatably arranged in the fixed box (16); a gear (19) meshing with the first rack (17) is fixed on the rotating rod (18); a second rack (20) is arranged above the first piston (4); the second rack (20) meshes with the gear (19) and is located on the opposite side of the first rack (17); a rotating rod (18) is arranged on the mouth frame (143); A driving assembly is provided for driving the first rod body (141) to rotate so that the gear (19) meshes with a group of first racks (17) on the first rod body (141); a cross bar (27) is provided at the bottom of the second rack (20); a vertical bar (28) is provided at one end of the cross bar (27) away from the second rack (20); the cross bar (27) is fixedly connected to the first piston (4); a sliding groove (29) for sliding connection of the vertical bar (28) is provided on the inner wall of the first piston cylinder (3); a long rod (30) is provided in the middle of the cross bar (27); the long rod (30) is inserted into the middle of the first rod body (141) and forms a sliding connection.

2. The exhaust gas treatment device according to claim 1, characterized in that: The driving assembly comprises a driving rod (21), a worm wheel (22) and a worm (23); one end of the first rod body (141) rotatably arranged on a square frame (143) is provided with a worm wheel (22); the driving rod (21) is rotatably arranged in the square frame (143); a worm (23) meshing with the worm wheel (22) is provided at a position of the driving rod (21) located in the square frame (143); and one end of the driving rod (21) is provided with a hexagonal socket (24).

3. The exhaust gas treatment device according to claim 2, characterized in that: The inner wall of the fixed box (16) is provided with a slide groove (26), and the two sides of the mouth frame (143) are inserted into the slide groove (26) to form an up-and-down sliding connection.

4. The exhaust gas treatment device according to claim 1, characterized in that: A connecting rod (32) is provided at the bottom of the cross rod (27); a stroke amplification assembly (31) is provided between the second rod body (142) and the second piston (9), and between the connecting rod (32) and the first piston (4); the stroke amplification assembly (31) comprises a stroke column (311) and a stroke ring (312); the second rod body (142) and the connecting rod (32) are both rotatably connected to the corresponding stroke column (311); a first spiral groove (33) is provided on the inner wall of the first piston cylinder (3) and the second piston cylinder (8); a first guide shaft (34) is provided on the outer wall of the stroke column (311) and is slidably connected to the first spiral groove (33); an annular groove (35) is provided at the bottom of the stroke column (311) for the stroke ring (312) to be inserted; a second spiral groove (36) is provided on the inner wall of the annular groove (35); and a second guide shaft (37) is provided on the outer wall of the stroke ring (312) and is slidably connected to the second spiral groove (36).

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