Waste gas conveying pipeline

Abstract

The invention relates to the technical field of waste gas emission, and discloses a waste gas conveying pipeline which comprises a pipeline body, a filter part and a storage box. The storage box is detachably connected to the bottom of the pipeline body, and an inlet communicated with an inner cavity of the storage box is formed in the end, facing the pipeline body, of the storage box. A sealing plate is arranged at the bottom of the filtering part, the sealing plate is connected with the storage box through an adjusting part, and the adjusting part drives the sealing plate to be switched between entering the storage box and leaving the storage box; a mounting opening is formed in the bottom of the pipeline body, the storage box is mounted on the pipeline body, and when the sealing plate leaves the storage box, the filtering part is located in the pipeline body to filter dust, and meanwhile, the sealing plate seals the mounting opening; and when the sealing plate enters the storage box, the filtering piece can be driven to be stored in the storage box. The situation that dust escapes when the filter part is disassembled and assembled can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust gas emission, and in particular to an exhaust gas conveying pipeline. Background Art

[0002] Currently, filters are usually installed in the pipeline that transports the waste gas to the treatment unit, in order to pre-filter the dust particles entrained in the waste gas, and then send the filtered waste gas to the treatment unit for organic matter treatment.

[0003] The filter elements in the conveying pipeline are usually filter screens, filter cotton, etc. These filter elements need to be disassembled, cleaned or replaced according to the maintenance cycle. However, in the process of removing the filter element from the conveying pipeline, the dust attached to the filter element is easy to escape, which is not only scattered into the surrounding environment and difficult to clean, but also may be inhaled by the operator, posing a threat to the operator's health. Summary of the invention

[0004] In order to improve the dust emission when disassembling and assembling the filter element, the present application provides an exhaust gas conveying pipeline.

[0005] The present application provides an exhaust gas delivery pipeline, which adopts the following technical solution: An exhaust gas delivery pipeline, comprising a pipeline body, a filter element and a storage box; the storage box is detachably connected to the bottom of the pipeline body, and one end of the storage box facing the pipeline body has an inlet connected to its own inner cavity; the bottom of the filter element has a sealing plate, and the sealing plate is connected to the storage box through an adjusting member, and the adjusting member drives the sealing plate to switch between entering the storage box and leaving the storage box; The bottom of the pipe body has an installation opening, the storage box is installed to the pipe body, and when the sealing plate leaves the storage box, the filter element is located in the pipe body to filter dust, and the sealing plate seals the installation opening; when the sealing plate enters the storage box, it can drive the filter element to be stored in the storage box; The top of the filter element is provided with a cover plate, and when the filter element is stored in the storage box, the cover plate closes the inlet; The pipe body is provided with two groups of opening and closing members along the exhaust gas conveying direction, the two groups of opening and closing members are respectively opposite to the two sides of the installation port, and the two groups of opening and closing members are hinged in the pipe body, and have a first state and a second state corresponding to themselves, and the pipe body is provided with a switching mechanism for switching the opening and closing members between the first state and the second state; When the opening and closing member is in the first state, the opening and closing member opens the inner cavity of the pipeline body, allowing gas to flow through the inner cavity of the pipeline body opposite to the installation port; when the opening and closing member is in the second state, the opening and closing member closes the inner cavity of the pipeline body.

[0006] By adopting the above technical solution, when the filter is taken out from the pipe body, the filter is first placed in the storage box, and then the storage box is removed, so that the dust on the filter can be isolated in the storage box, which can improve the dust dispersion when the filter is disassembled. When the filter is stored in the storage box, the cover plate effectively closes the entrance to prevent the dust in the storage box from escaping. By setting two sets of opening and closing parts and a switching mechanism, the inner cavity of the pipe body can be conveniently opened and closed during the process of taking out and putting in the filter. Before the filter is taken out, the opening and closing parts close the pipe body on both sides of the installation port to prevent external dust from entering the pipe body in the absence of the filter.

[0007] Optionally, the adjusting member includes an adjusting rod and a guide rod; one end of the adjusting rod is rotatably connected to the sealing plate, one end of the guide rod is connected to the sealing plate, the adjusting rod is parallel to the guide rod, and the adjusting rod is simultaneously threadedly penetrated through the end of the storage box opposite to the entrance, and the guide rod is simultaneously slidably penetrated through the end of the storage box opposite to the entrance.

[0008] By adopting the above technical solution, the coordinated use of the adjusting rod and the guide rod can not only realize the lifting and lowering of the sealing plate and the filter element, but also improve the stability and guidance of the lifting process.

[0009] Optionally, the switching mechanism includes A switching handle is slidable in the hinged end of the opening and closing member along the axial direction of the rotation axis of the opening and closing member, one end of which extends to the outside of the pipeline body and has a guide portion; a switching seat, mounted on the outer wall of the pipe body and for the switching handle to pass through, having a first slide groove, a transition slide groove and a second slide groove for the guide portion to slide, the transition slide groove being connected between the first slide groove and the second slide groove, and the ends of the first slide groove and the second slide groove away from the transition slide groove both extending along the axial direction of the hinged end of the opening and closing member toward the pipe body; and A first elastic member connected to the switch handle, giving the guide portion a tendency to move toward the direction close to the pipe body; Wherein, when the guide portion slides into the first sliding groove, the opening and closing member is in the first state, and when the guide portion slides into the second sliding groove, the opening and closing member is in the second state.

[0010] By adopting the above technical solution, the position of the switch handle is adjusted to drive the opening and closing member to adjust its position, so that the opening and closing member can be moved accurately and quickly, and the adjusted position of the opening and closing member is maintained by the elastic force of the first elastic member.

[0011] Optionally, the opening and closing member includes an inner plate, an outer plate and a second elastic member; the inner plate is hinged to the pipe body, and the outer plate is slidably mounted on the free end of the inner plate in a direction perpendicular to the rotation axis of the inner plate, and the second elastic member is connected between the inner plate and the outer plate to give the inner plate and the outer plate a tendency to move away from each other.

[0012] By adopting the above technical solution, the inner plate, the outer plate and the second elastic member are used in combination, so that the outer plate can be pressed tightly against the inner wall of the pipeline body, so as to enhance the sealing and stability of the opening and closing member.

[0013] Optionally, the outer sleeve plate has an arc-shaped structure with one end away from the inner sleeve and an arc opening facing the inner sleeve. When the opening and closing member is in the second state, the middle portion of the bottom end of the outer sleeve plate abuts against the edge of the pipe body at the installation opening.

[0014] By adopting the above technical solution, the arc-shaped structure of the outer sleeve can make the outer sleeve rotate more smoothly after contacting the inner wall of the pipe body.

[0015] Optionally, the outer plate has an inclined surface at one end facing the hinged end of the inner plate, and the inclined surface gradually extends toward the surface of the inner plate along the hinged end of the inner plate; the cover plate includes a main plate, a telescopic plate and a third elastic member, the telescopic plate has two and slides respectively at two opposite ends of the main plate, and the third elastic member is connected between the main plate and the telescopic plate to give the telescopic plate a tendency to move away from the main plate; When the opening and closing member is in the second state, during the process of the filter member moving toward the storage box, the telescopic plate is driven by the third elastic member to abut against the outer surface of the opening and closing member.

[0016] By adopting the above technical solution, the telescopic plate is abutted against the outer wall of the opening and closing member through the action of the third elastic member, so that dust on the surface of the opening and closing member can be scraped off into the storage box when the filter member is stored in the storage box, thereby cleaning the opening and closing member. The inclined surface can guide the telescopic plate when the telescopic plate passes from the inner plate to the outer plate.

[0017] Optionally, the pipeline body includes an air supply pipe and a filter pipe, the filter pipe is detachably connected between the two air supply pipes, and the filter element and the storage box are both installed on the filter pipe.

[0018] By adopting the above technical solution, the split structure facilitates maintenance and inspection of the entire exhaust gas conveying pipeline.

[0019] Optionally, the filter tube includes a reduced diameter section and an expanded section, the expanded section has two sections and is respectively located at both ends of the filter tube, the reduced diameter section is connected between the two expanded sections, the filter element and the storage box are both installed on the reduced diameter section; the expanded section gradually expands toward the direction approaching the gas pipe, and the maximum diameter of the expanded section is consistent with the diameter of the gas pipe, and the diameter of the reduced diameter section is consistent with the minimum diameter of the expanded section.

[0020] By adopting the above technical solution, the reduction in diameter of the reduced diameter section can increase the flow velocity of the exhaust gas when passing through the reduced diameter section, thereby improving the efficiency of the exhaust gas passing through the filter element.

[0021] In summary, the present application includes at least one of the following beneficial effects: 1. By setting a detachable storage box at the bottom of the pipe body, the filter element is stored in the storage box, so that the dust of the filter element can be sealed in the storage box, and then the storage box is removed, thereby improving the dust emission when the filter element is disassembled; 2. The pipeline body is closed by the opening and closing parts to prevent dust and impurities from entering the pipeline body after the filter element is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the filter tube after being cut apart in the embodiment of the present application; Figure 3 It is a schematic diagram of the structure of the opening and closing member and the filter member cooperating when the opening and closing member is in the first state in the embodiment of the present application; Figure 4 It is a schematic diagram of the structure of the opening and closing member and the filter element cooperating when the opening and closing member is in the second state in the embodiment of the present application; Figure 5 is a perspective view of a filter element and an opening and closing element in an embodiment of the present application; Figure 6 yes Figure 5 A schematic diagram of the enlarged structure at A in the middle; Figure 7 yes Figure 5 A schematic diagram of the enlarged structure at B in the middle; Figure 8 is a cross-sectional view of the switch handle and the inner plate in the embodiment of the application; Fig. 9 It is a cross-sectional view of the switching seat in the application embodiment.

[0023] Explanation of the accompanying drawings: 1. pipeline body; 101. gas transmission pipe; 102. filter tube; 1021. reduced diameter section; 1022. expanded section; 2. filter element; 21. filter body; 22. sealing plate; 23. cover plate; 231. main board; 232. telescopic plate; 233. third elastic element; 3. storage box; 4. inlet; 5. adjustment element; 51. adjustment rod; 52. guide rod; 6. installation port; 7. opening and closing element; 71. inner plate; 72. outer plate; 73. second elastic element; 8. switching mechanism; 81. switching handle; 82. switching seat; 83. first elastic element; 9. guide part; 10. first slide groove; 11. transition slide groove; 12. second slide groove; 13. inclined surface; 14. limit part; 15. limit groove; 16. stroke part; 17. stroke groove; 18. displacement stop head; 19. moving part; 20. moving groove. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 To Attachment Fig. 9 This application is described in further detail.

[0025] The present application embodiment discloses an exhaust gas delivery pipeline. Figure 1 and Figure 2 The exhaust gas conveying pipeline includes a pipeline body 1, a filter element 2, a storage box 3 and an opening and closing member 7. Multiple pipeline bodies 1 are connected to the same main air duct (not shown in the figure), and the main air duct is provided with an induced draft fan to provide power for the conveying of the exhaust gas. The filter element 2 is installed in the pipeline body 1 to intercept impurities in the exhaust gas. The storage box 3 is connected to the filter element 2 and is used to store the filter element 2 when the filter element 2 is removed, so that the dust in the filter element 2 is not easily blown into the surrounding environment. The opening and closing member 7 is hinged in the pipeline body 1, and is used to close the pipeline body 1 where the filter element 2 is installed after the filter element 2 is removed from the pipeline body 1, so that in the absence of the filter element 2, dust impurities are not easy to enter the pipeline body 1.

[0026] Reference Figure 2 and Figure 3 Specifically, for the filter element 2, the filter element 2 includes a filter body 21, a sealing plate 22 and a cover plate 23. The filter body 21 can be a filter screen, gauze, filter cotton, etc. In this embodiment, a filter screen is preferred, and a support frame is surrounded by the filter body 21. The sealing plate 22 is fixed to the bottom end of the filter body 21, and the cover plate 23 is fixed to the top end of the filter body 21. The bottom end of the pipeline body 1 is provided with an installation port 6 for the filter element 2 to enter.

[0027] As for the storage box 3, the storage box 3 is in a square box shape, and has an inlet 4 connected to the inner cavity on the top. The size of the inlet 4 is adapted to the size of the sealing plate 22, and the sealing plate 22 is connected to the storage box 3 through an adjusting member 5. The adjusting member 5 can drive the filter element 2 to be stored in the storage box 3 or to be moved out of the storage box 3.

[0028] There are convex edges extending outward around the top of the storage box 3. When the filter element 2 is moved out of the storage box 3, the filter element 2 is moved from the installation port 6 into the pipe body 1 so that the cover plate 23 abuts against the inner top wall of the pipe body 1. At this time, the filter body 21 separates the inner cavity of the pipe body 1, and the sealing plate 22 enters the installation port 6 to block the installation port 6. The convex edge of the storage box 3 abuts against the bottom wall of the pipe body 1. The convex edge can be locked to the pipe body 1 by bolts to achieve the installation of the storage box 3 and the filter element 2.

[0029] Reference Figure 2 and Figure 3 , wherein the adjusting member 5 includes an adjusting rod 51 and a guide rod 52. The adjusting rod 51 is threadedly arranged at the bottom of the storage box 3, and the top of the adjusting rod 51 is rotatably connected to the sealing plate 22 through the intermediate seat. Specifically, the adjusting rod 51 is rotatably connected to the intermediate seat, and the intermediate seat is detachably connected to the center of the sealing plate 22 by bolts. The bottom end of the guide rod 52 is fixedly connected to the sealing plate 22, and the bottom end of the guide rod 52 is slidably arranged at the bottom of the storage box 3. The adjusting rod 51 and the guide rod 52 are parallel to each other. When the adjusting rod 51 is threadedly moved, the sealing plate 22 is driven to move up and down, so as to drive the filter element 2 to be stored in the storage box 3 or to be moved out of the storage box 3. It should be noted that when the filter element 2 is stored in the storage box 3, the surrounding of the sealing plate 22 abuts against the surrounding inner walls of the storage box 3, and the surrounding of the cover plate 23 also abuts against the surrounding inner walls of the storage box 3, and the cover plate 23 blocks the entrance 4.

[0030] Reference Figure 4 and Figure 5 As for the opening and closing parts 7, two groups of opening and closing parts 7 are arranged on the pipe body 1 along the exhaust gas conveying direction. The two groups of opening and closing parts 7 are respectively on the opposite sides of the pipe body 1 at the installation port 6, and the filter 2 is located between the two groups of opening and closing parts 7. Each group of opening and closing parts 7 includes an inner plate 71, an outer plate 72 and a second elastic member 73. The inner plate 71 is in the shape of a square plate, and one end of the inner plate 71 is hinged to the inner top wall of the pipe body 1. The outer plate 72 is in the shape of a square, and the outer plate 72 is sleeved and slid on the free end of the inner plate 71 along the distribution direction of the hinged end and the free end of the inner plate 71, and the outer periphery of the end of the outer plate 72 away from the inner plate 71 is in the shape of an arc with an arc opening facing the inner plate 71. The opposite sides of the inner plate 71 are respectively in contact with the inner walls of the opposite sides of the pipe body 1, and the inner plate 71 is flush with the opposite sides of the outer plate 72. The second elastic member 73 is a spring connected between the free end of the inner plate 71 and the inner wall of the outer plate 72 to give the outer plate 72 an elastic force to slide in a direction away from the hinged end of the inner plate 71 .

[0031] Reference Figure 6 In order to improve the stability of relative sliding between the inner plate 71 and the outer plate 72, a limiting portion 14 is protruded from the outer wall of the inner plate 71, and a limiting groove 15 is opened on the inner wall of the outer plate 72 for the limiting portion 14 to slide, and the extending direction of the limiting groove 15 is parallel to the sliding direction of the outer plate 72.

[0032] Reference Figure 2 , Figure 3 and Figure 4 , the hinged end of the inner plate 71 rotates relative to the pipeline body 1 to drive the opening and closing member 7 to switch between the first state and the second state. When the opening and closing member 7 is in the first state, the inner plate 71 and the outer plate 72 are both arranged horizontally, and the upper surface of the outer plate 72 abuts against the inner top wall of the pipeline body 1, and the free ends of the inner plates 71 in the two sets of opening and closing members 7 are farther away from each other than the hinged ends of the inner plates 71. At this time, the opening and closing member 7 opens the pipeline body 1, and the gas in the pipeline body 1 can pass through the space between the opening and closing member 7 and the pipeline body 1.

[0033] When the opening and closing member 7 is in the second state, the inner plate 71 and the outer plate 72 are both arranged vertically, and the top end of the inner plate 71 abuts against the inner top wall of the pipe, and the bottom end of the outer plate 72 is driven by the second elastic member 73 to abut against the inner bottom wall of the pipe body 1. At this time, the opening and closing member 7 closes the inner cavity of the pipe body 1 to prevent the gas in the pipe body 1 from passing through.

[0034] It should be noted that when the opening and closing member 7 is in the second state, the lowest point of the outer sleeve 72 abuts against the edge of the pipe body 1 at the installation port 6, so that when the opening and closing member 7 is turned from the first state to the second state, the outer sleeve 72 can sweep the dust at the edge of the installation port 6 downward into the installation box, so that dust is not easily accumulated at the edge of the installation port 6.

[0035] Reference Figure 5 What's more, the cover plate 23 is retractable, and inclined surfaces 13 for guiding the retractable plate 232 are cut out on opposite sides of the outer plate 72 near the hinged end of the inner plate 71, so that when the opening and closing member 7 is in the second state and the filter element 2 is gradually stored in the storage box 3, the cover plate 23 can scrape off the dust on the surface of the opening and closing member 7 near the installation port 6.

[0036] Reference Figure 5 and Figure 7Specifically, the cover plate 23 includes a main board 231, a telescopic plate 232 and a third elastic member 233. The main board 231 is in the shape of a square plate, and the filter body 21 is fixed to the middle of the main board 231. There are two telescopic plates 232, and the two telescopic plates 232 slide on the opposite sides of the main board 231 in the direction parallel to the exhaust gas passing through the filter body 21, and the opposite sides of the telescopic plates 232 are respectively flush with the opposite sides of the main board 231, so that the opposite sides of the telescopic plates 232 and the main board 231 are respectively in contact with the inner walls of the opposite sides of the pipe body 1. The third elastic member 233 is a spring, and the third elastic member 233 is connected between the inner wall of the main board 231 and the telescopic plate 232 to give the telescopic plate 232 an elastic force to move away from the main board 231. In order to improve the relative sliding stability between the telescopic plate 232 and the main board 231 , a travel portion 16 is protruded from the inner wall of the main board 231 , and a travel groove 17 for the travel portion 16 to slide is opened on the surface of the telescopic plate 232 , and the travel groove 17 extends along the sliding direction of the telescopic plate 232 .

[0037] The inclined surface 13 of the outer sleeve 72 gradually extends toward the surface of the inner sleeve 71 along the direction close to the hinged end of the inner sleeve 71, and one end of the inclined surface 13 close to the hinged end of the inner sleeve 71 is connected to the outer surface of the inner sleeve 71, and the end of the inclined surface 13 away from the hinged end of the inner sleeve 71 is connected to the outer surface of the outer sleeve 72.

[0038] Reference Figure 3 , Figure 4 and Figure 5 When the opening and closing member 7 is in the first state or the second state, the ends of the two telescopic plates 232 in the installation and use state that are away from each other are respectively abutted against the ends of the two inner plates 71 that are close to each other under the drive of the third elastic member 233. And when the opening and closing member 7 is in the second state, during the process of the filter element 2 being gradually recovered into the storage box 3, the telescopic plate 232 transitions from abutting against the surface of the inner plate 71 to abutting against the surface of the outer plate 72 through the inclined surface 13, and then enters the entrance 4 through the installation opening 6. When the telescopic plate 232 is located in the entrance 4, the ends of the two telescopic plates 232 that are away from each other are respectively abutted against the opposite sides of the storage box 3, and the opposite ends of the telescopic plate 232 and the opposite ends of the main board 231 are respectively abutted against the other opposite sides of the storage box 3, so that the cover plate 23 blocks the entrance 4.

[0039] Reference Figure 2 and Figure 4 In order to enable the opening and closing member 7 to switch between the first state and the second state, a switching mechanism 8 is provided on the pipeline body 1, and the switching mechanism 8 corresponds to the opening and closing member 7 one by one.

[0040] Reference Figure 4 and Figure 8Specifically, each set of switching mechanisms 8 includes a switching handle 81, a switching seat 82 and a first elastic member 83. The switching handle 81 is in the shape of a circular shaft. The switching handle 81 passes through the hinged end of the inner plate 71 and the pipe body 1 at the same time. The end of the inner plate 71 is sleeved on the switching handle 81 so that the inner plate 71 is hinged to the pipe body 1 through the switching handle 81. A moving portion 19 protrudes from the outer wall of the switching handle 81. The inner plate 71 has a moving groove 20 for the moving portion 19 to move along the axial direction of the switching plate to limit the relative rotation between the switching handle 81 and the inner plate 71. The switching seat 82 is in the shape of a disc and is fixed to the outer wall of one side of the pipe body 1. One end of the switching handle 81 slides out of the pipe body 1 and coaxially slides through the switching seat 82 at the same time. A handle is fixed to one end of the switching handle 81 that passes through the switching seat 82.

[0041] Reference Figure 4 , Figure 8 and Fig. 9 The outer periphery of the switching handle 81 located in the switching seat 82 has a guide portion 9 protruding outward, and the inner wall of the switching seat 82 is provided with a first slide groove 10, a transition slide groove 11 and a second slide groove 12 for the guide portion 9 to slide. The first slide groove 10 and the second slide groove 12 are parallel to each other and extend along the axial direction of the switching handle 81, and the transition slide groove 11 extends circumferentially along the switching handle 81. The transition slide grooves 11 are mutually far away from each other and are respectively connected to the ends of the first slide groove 10 and the second slide groove 12 far away from the pipe body 1.

[0042] When the driving handle drives the guide part 9 to slide into the first slide groove 10, the opening and closing member 7 is in the first state. When the driving handle drives the guide part 9 to slide away from the first slide groove 10 and slide into the second slide groove 12 through the transition slide groove 11, the opening and closing member 7 is in the second state.

[0043] One end of the switching handle 81 away from the switching seat 82 is slidably arranged out of the pipeline body 1 and connected to the blocking head 18. The first elastic member 83 is a spring, which is sleeved on the outer wall of the switching handle 81 and connected between the blocking head 18 and the outer wall of the pipeline body 1, and is used to give the blocking head 18 an elastic force to move away from the pipeline body 1, so as to give the guide part 9 on the switching handle 81 a tendency to move toward the pipeline body 1, so that when the guide part 9 is aligned with the first slide groove 10 or the second slide groove 12, the switching plate is driven to move the guide part 9 to the first slide groove 10 or the second slide groove 12, so that the opening and closing member 7 can be maintained in the first state or the second state.

[0044] Reference Figure 1 and Figure 2Furthermore, the pipeline body 1 includes an air pipe 101 and a filter pipe 102, and the filter pipe 102 is detachably connected between the two air pipes 101 by flange bolts. The air pipe 101 is in the shape of a square tube. The filter pipe 102 includes a reduced diameter section 1021 and a flared section 1022, and the flared section 1022 has two sections, which are respectively located at two ends of the filter pipe 102 that are far away from each other. The reduced diameter section 1021 is located between the two flared sections 1022, and the two flared sections 1022 correspond to the air pipes 101 at both ends of the filter pipe 102, respectively. The flared section 1022 flares in a direction close to the corresponding air pipe 101, and the maximum diameter of the flared section 1022 is consistent with the diameter of the air pipe 101, and the minimum diameter of the flared section 1022 is consistent with the diameter of the reduced diameter section 1021. Among them, the filter element 2, the storage box 3 and the opening and closing member 7 are all installed on the reduced diameter section 1021.

[0045] When the exhaust gas is sent from the gas delivery pipe 101 to the filter tube 102 for filtration, the reduced diameter of the filter tube 102 can increase the flow rate of the exhaust gas through the filter tube 102, thereby improving the filtration efficiency. In order to balance the air pressure between the reduced diameter section 1021 and the cover plate 23 and between the sealing plate 22 and the storage box 3 when the filter element 2 is stored in the storage box 3, a balancing hole (not shown in the figure) is provided on the bottom wall of the storage box 3 and the top wall of the reduced diameter section 1021 relative to the main board 231.

[0046] Furthermore, a hair dryer (not shown in the figure) is placed in the air delivery pipe 101, and the blowing direction of the hair dryer is opposite to the exhaust gas transmission direction. Before storing the filter element 2, the opening and closing member 7 of the two opening and closing members 7 away from one end of the main air duct is first moved to the second state, and the opening and closing member 7 close to one end of the main air duct is kept in the first state, and then the hair dryer is turned on to blow air to the filter body 21, and the dust on the side of the filter body 21 away from the main air duct is blown off to between the opening and closing member 7 and the filter body 21, and then both opening and closing members 7 are moved to the second state, and the filter element 2 is stored in the storage box 3, and the dust falling from the filter body 21 and the dust scraped from the opening and closing member 7 enter the storage box 3 and accumulate on the sealing plate 22.

[0047] The implementation principle of an exhaust gas delivery pipeline in the embodiment of the present application is as follows: when removing the filter element 2, first move the opening and closing member 7 away from one end of the main air duct to the second state, turn on the hair dryer to blow the filter element 2, so that the dust accumulated on the side of the filter body 21 away from the main air duct falls between the opening and closing member 7 and the filter body 21. Then move the opening and closing member 7 close to one end of the main air duct to the second state, and then thread the adjustment rod 51 to drive the filter element 2 to move downward and be stored in the storage box 3. After the filter element 2 moves away from the pipeline body 1 and the cover plate 23 closes the inlet 4, remove the storage box 3 from the pipeline body 1, and then take the storage box 3 to a special cleaning space to take out the filter element 2 for cleaning.

[0048] When the filter element 2 is installed after cleaning, the two opening and closing parts 7 remain in the second state, and the filter element 2 is sent between the two opening and closing parts 7 until the cover plate 23 abuts against the inner top wall of the reduced diameter section 1021, the sealing plate 22 closes the installation opening 6, and the top of the storage box 3 abuts against the bottom wall of the reduced diameter section 1021. After the storage box 3 is locked to the reduced diameter section 1021 by bolts, the two opening and closing parts 7 are moved to the first state to complete the installation of the filter element 2.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An exhaust gas delivery pipeline, characterized in that: The invention comprises a pipe body (1), a filter element (2) and a storage box (3); the storage box (3) is detachably connected to the bottom of the pipe body (1); one end of the storage box (3) facing the pipe body (1) has an inlet (4) communicating with its own inner cavity; the bottom of the filter element (2) has a sealing plate (22); the sealing plate (22) and the storage box (3) are connected via an adjusting member (5); the adjusting member (5) drives the sealing plate (22) to switch between entering the storage box (3) and leaving the storage box (3); The bottom of the pipe body (1) is provided with a mounting opening (6); the storage box (3) is mounted on the pipe body (1); and when the sealing plate (22) leaves the storage box (3), the filter element (2) is located in the pipe body (1) to filter dust, and at the same time, the sealing plate (22) closes the mounting opening (6); when the sealing plate (22) enters the storage box (3), it can drive the filter element (2) to be stored in the storage box (3); The top of the filter element (2) is provided with a cover plate (23), and when the filter element (2) is stored in the storage box (3), the cover plate (23) closes the inlet (4); The pipe body (1) is provided with two groups of opening and closing members (7) along the exhaust gas conveying direction, the two groups of opening and closing members (7) are respectively opposite to the two sides of the installation opening (6), and the two groups of opening and closing members (7) are both hinged in the pipe body (1) and have a first state and a second state corresponding to themselves, and the pipe body (1) is provided with a switching mechanism (8) for switching the opening and closing members (7) between the first state and the second state; When the opening and closing member (7) is in the first state, the opening and closing member (7) opens the inner cavity of the pipeline body (1), allowing gas to flow through the inner cavity of the pipeline body (1) opposite to the installation opening (6); when the opening and closing member (7) is in the second state, the opening and closing member (7) closes the inner cavity of the pipeline body (1).

2. The exhaust gas delivery pipeline according to claim 1, characterized in that: The adjusting member (5) comprises an adjusting rod (51) and a guide rod (52); one end of the adjusting rod (51) is rotatably connected to the sealing plate (22), and one end of the guide rod (52) is connected to the sealing plate (22); the adjusting rod (51) and the guide rod (52) are parallel to each other, and the adjusting rod (51) is threadedly penetrated through an end of the storage box (3) opposite to the inlet (4), and the guide rod (52) is slidably penetrated through an end of the storage box (3) opposite to the inlet (4).

3. The exhaust gas delivery pipeline according to claim 1, characterized in that: The switching mechanism (8) comprises A switching handle (81) is slidable in the hinged end of the opening and closing member (7) along the axial direction of the rotation axis of the opening and closing member (7), one end of which extends to the outside of the pipeline body (1) and has a guide portion (9); a switching seat (82) mounted on the outer wall of the pipe body (1) and for the switching handle (81) to pass through, comprising a first slide groove (10), a transition slide groove (11) and a second slide groove (12) for the guide portion (9) to slide, wherein the transition slide groove (11) is connected between the first slide groove (10) and the second slide groove (12), and the ends of the first slide groove (10) and the second slide groove (12) away from the transition slide groove (11) both extend along the axial direction of the hinged end of the opening and closing member (7) toward the pipe body (1); and A first elastic member (83) connected to the switching handle (81) to impart a tendency to the guide portion (9) to move toward the direction approaching the pipe body (1); When the guide portion (9) slides into the first sliding groove (10), the opening and closing member (7) is in the first state, and when the guide portion (9) slides into the second sliding groove (12), the opening and closing member (7) is in the second state.

4. The exhaust gas delivery pipeline according to claim 1, characterized in that: The opening and closing member (7) comprises an inner plate (71), an outer plate (72) and a second elastic member (73); the inner plate (71) is hinged to the pipe body (1); the outer plate (72) is slidably mounted on the free end of the inner plate (71) in a direction perpendicular to the rotation axis of the inner plate (71); and the second elastic member (73) is connected between the inner plate (71) and the outer plate (72) to give the inner plate (71) and the outer plate (72) a tendency to move in a direction away from each other.

5. The exhaust gas delivery pipeline according to claim 4, characterized in that: The outer plate (72) has an arc-shaped structure with one end away from the inner plate (71) and an arc opening facing the inner plate (71). When the opening and closing member (7) is in the second state, the middle of the bottom end of the outer plate (72) abuts against the edge of the pipe body (1) at the installation opening (6).

6. The exhaust gas conveying pipeline according to claim 5, characterized in that: The outer plate (72) has an inclined surface (13) at one end thereof facing the hinged end of the inner plate (71), and the inclined surface (13) gradually extends toward the surface of the inner plate (71) along the hinged end of the inner plate (71); the cover plate (23) comprises a main plate (231), a telescopic plate (232), and a third elastic member (233); the telescopic plate (232) has two ends that slide respectively at opposite ends of the main plate (231); the third elastic member (233) is connected between the main plate (231) and the telescopic plate (232) and is used to give the telescopic plate (232) a tendency to move in a direction away from the main plate (231); When the opening and closing member (7) is in the second state, during the process of the filter member (2) moving toward the storage box (3), the telescopic plate (232) is driven by the third elastic member (233) to abut against the outer surface of the opening and closing member (7).

7. The exhaust gas delivery pipeline according to claim 1, characterized in that: The pipeline body (1) comprises an air supply pipe (101) and a filter pipe (102); the filter pipe (102) is detachably connected between the two air supply pipes (101), and the filter element (2) and the storage box (3) are both mounted on the filter pipe (102).

8. The exhaust gas delivery pipeline according to claim 7, characterized in that: The filter tube (102) comprises a reduced diameter section (1021) and an expanded section (1022); the expanded section (1022) has two sections and is respectively located at two ends of the filter tube (102); the reduced diameter section (1021) is connected between the two expanded sections (1022); the filter element (2) and the storage box (3) are both mounted on the reduced diameter section (1021); the expanded section (1022) gradually expands in a direction approaching the gas transmission pipe (101); the maximum diameter of the expanded section (1022) is consistent with the diameter of the gas transmission pipe (101); the diameter of the reduced diameter section (1021) is consistent with the minimum diameter of the expanded section (1022).

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