High-efficiency paint slag cleaning device for inner wall of air draft pipeline of coating spray booth

Abstract

The invention provides an efficient paint slag cleaning device for the inner wall of an air draft pipeline of a coating spray booth. The efficient paint slag cleaning device comprises a cleaning assembly and the air draft pipeline, and the cleaning assembly comprises a first ring body and a fixing mechanism; the fixing mechanism is used for fixing the first ring body, the circular handle, the movable rod, the servo motor, the barrel body, the filtering blind pipe, the clearing mechanism, the discharging mechanism and the circular plate body to the air draft pipeline, then the clearing mechanism is attached to the inner wall of the air draft pipeline, and an output shaft of the servo motor drives the barrel body, the filtering blind pipe and the clearing mechanism to rotate; the air pump is used for extracting air in the barrel body and the filtering blind pipe through the corrugated pipe, the cleaning mechanism scrapes and sucks paint slag in the air draft pipeline into the filtering blind pipe, the paint slag can be conveniently stored and discharged, and related personnel only need to hold a circular handle to drive a movable rod, a circular plate body, the filtering blind pipe, the cleaning mechanism and the barrel body to move. The device can be applied to air draft pipelines not passing through diameters, the workload of related personnel is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline paint residue cleaning equipment, and in particular to a high-efficiency paint residue cleaning device for the inner wall of an exhaust pipe in a paint spraying room. Background Art

[0002] The exhaust duct in the painting spray booth connects the interior and exterior of the spray booth and is used to extract and discharge harmful gases, paint particles and other pollutants generated during the painting process. It ensures proper air flow in the spray booth to maintain a stable painting environment and ensure the quality of the painting. It also discharges harmful substances generated during the painting process outdoors to protect the health of operators and reduce environmental pollution.

[0003] During the use of the exhaust duct, paint particles and other pollutants have weight and viscosity, which will cause them to adhere to the exhaust duct to form paint residue. When cleaning the paint residue in the exhaust duct, a long rod with a brush is usually used to clean it. Although this cleaning method can remove the paint residue, the removed paint residue will fall into the exhaust duct, which is inconvenient to clean, increases the workload of relevant personnel, and reduces work efficiency. For this reason, an efficient paint residue cleaning device for the inner wall of the exhaust duct of the painting spray room is proposed. Summary of the Invention

[0004] In view of this, the embodiments of the present invention hope to provide a high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the present invention is achieved as follows: a high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room includes a cleaning component and an exhaust duct, wherein the cleaning component includes a first ring body, a fixing mechanism, a circular handle, a plurality of movable rods, a servo motor, a barrel body, a filter blind pipe, a plurality of cleaning mechanisms, a discharge mechanism and a circular plate body, wherein the fixing mechanism is arranged on the outer wall of the first ring body, and the outer wall of the first ring body is evenly provided with first circular through holes, and the exhaust duct is fitted with the fixing mechanism; one end of a plurality of the movable rods passes through the first circular through holes and is arranged on the circular plate body On one side, the circular handle is arranged at the other end of several of the movable rods; the barrel body is rotatably connected to the other side of the circular plate body, and the filter blind pipe is arranged on the inner wall of the barrel body; the servo motor is arranged on one side of the circular plate body, and the output shaft of the servo motor passes through the circular plate body and is arranged at one end of the filter blind pipe; the discharge mechanism is arranged on the barrel body and the filter blind pipe, and several of the cleaning mechanisms are evenly arranged on the barrel body and the filter blind pipe; a bellows is passed through the outer wall of the circular plate body, one end of the bellows passes through the first ring body and is provided with an air pump.

[0006] In some embodiments, the fixing mechanism includes a second ring body, a third ring body, several threaded fixing rods, a conical outer tooth ring and several conical inner threaded outer tooth rings, wherein the second ring body is arranged on the outer wall of the first ring body, and the outer wall of the second ring body is evenly provided with second circular through holes; the third ring body is rotatably connected to the outer wall of the second ring body, and the conical outer tooth ring is arranged on one side of the third ring body; several of the conical inner threaded outer tooth rings are rotatably connected to the outer wall of the second ring body, and several of the conical inner threaded outer tooth rings are engaged with the conical outer tooth ring; the outer walls of several of the threaded fixing rods are threadedly connected to the inner walls of the corresponding conical inner threaded outer tooth rings, and the threaded fixing rods are slidably connected to the inner wall of the second circular through hole, and the adjacent ends of several of the threaded fixing rods are in contact with the outer wall of the exhaust duct.

[0007] In some embodiments, the cleaning mechanism includes a square scraper, a block, a movable plate, several springs and two suction pipes, wherein the square scraper passes through the barrel body and is fixedly connected to the barrel body; a movable groove is provided on the upper surface of the square scraper, and the movable plate is slidably connected to the inner wall of the movable groove; the square scraper is arranged on the upper surface of the movable plate, and the square scraper fits the inner wall of the movable groove; the top ends of several springs are evenly arranged on the lower surface of the movable plate, and the bottom ends of several springs are evenly arranged on the inner bottom wall of the movable groove; the two suction pipes are symmetrically arranged on the outer wall of the block, and the block is fixedly connected to the two suction pipes; the two suction pipes pass through the barrel body and the filter blind pipe in sequence, and both of the suction pipes are fixedly connected to the barrel body and the filter blind pipe.

[0008] In some embodiments, the discharge mechanism includes an externally threaded circular plate, a circular rod, a circular scraper and an operating handle, wherein a threaded through hole is opened on the inner wall of the barrel body, and the outer wall of the externally threaded circular plate is threadedly connected to the inner wall of the threaded through hole; one end of the circular rod is arranged on one side of the externally threaded circular plate, and the operating handle is arranged on the other side of the externally threaded circular plate; the other end of the circular rod is rotatably connected to one side of the circular scraper, and the outer wall of the circular scraper is attached to the inner wall of the filter blind pipe.

[0009] In some embodiments, the inner wall of the movable through groove is symmetrically provided with a first sliding groove, the outer wall of the movable plate is symmetrically provided with a first sliding block, and the outer wall of the first sliding block is slidably connected to the inner wall of the first sliding groove.

[0010] In some embodiments, the inner wall of the second circular through hole is evenly provided with a second sliding block, the outer wall of the threaded fixing rod is evenly provided with a second sliding groove, and the outer wall of the second sliding block is slidably connected to the inner wall of the second sliding groove.

[0011] In some embodiments, the outer wall of the third ring body is evenly provided with handles.

[0012] In some embodiments, an arc-shaped portion is formed on the upper surface of the square scraper.

[0013] The embodiment of the present invention adopts the above technical solution, which has the following advantages:

[0014] 1. The present invention uses a fixing mechanism to fix the first ring body, round handle, movable rod, servo motor, barrel body, filter blind pipe, cleaning mechanism, discharge mechanism and round plate body on the exhaust duct. Thereafter, the cleaning mechanism is fitted with the inner wall of the exhaust duct, and the output shaft of the servo motor drives the barrel body, filter blind pipe and cleaning mechanism to rotate. The air pump is used to extract the gas in the barrel body and filter blind pipe through the bellows. The cleaning mechanism scrapes and absorbs the paint residue in the exhaust duct into the filter blind pipe, which is convenient for storing and discharging the paint residue. The relevant personnel only need to hold the round handle to drive the movable rod, round plate body, filter blind pipe, cleaning mechanism and barrel body to move. It can be applied to exhaust ducts of different diameters, reducing the workload of the relevant personnel and improving work efficiency.

[0015] Second, the present invention can discharge the paint residue stored in the filter blind tube through the discharge mechanism, so as to facilitate reuse.

[0016] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 AA side cross-sectional structure diagram;

[0020] Figure 3 For the present invention Figure 2 A magnified structural diagram of area B;

[0021] Figure 4 For the present invention Figure 2 The enlarged structure of the C region;

[0022] Figure 5 For the present invention Figure 2 A magnified structural diagram of the D region;

[0023] Figure 6 For the present invention Figure 2 A magnified structural diagram of the E region;

[0024] Figure 7 For the present invention Figure 2 The enlarged structure diagram of the F region;

[0025] Figure 8 This is a structural diagram of the square scraper of the present invention;

[0026] Figure 9 It is a structural diagram of the cleaning component of the present invention;

[0027] Figure 10 For the present invention Figure 9 GG side section structure diagram.

[0028] Figure numerals: 1, cleaning component; 2, exhaust duct; 3, bellows; 4, air pump; 5, threaded through hole; 6, first circular through hole; 7, movable through groove; 8, first slide groove; 9, first slider; 10, first ring body; 11, fixing mechanism; 12, round handle; 13, movable rod; 14, servo motor; 15, barrel; 16, filter blind pipe; 17, cleaning mechanism; 18, discharge mechanism; 19, circular plate; 20, turning handle; 21, second Circular through hole; 22, second slide groove; 23, second slider; 24, arc-shaped portion; 110, second ring body; 111, third ring body; 112, threaded fixing rod; 113, conical outer gear ring; 114, conical inner thread outer gear ring; 170, square scraper; 171, block; 172, movable plate; 173, spring; 174, suction tube; 180, outer threaded circular plate; 181, circular rod body; 182, circular scraper; 183, operating handle. DETAILED DESCRIPTION

[0029] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0030] It should be noted that the terms "first," "second," "symmetrical," "array," etc. are used only to distinguish descriptions from positional descriptions and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, limitations on features such as "first" and "symmetrical" may explicitly or implicitly include one or more of these features; similarly, when the number of certain features is not limited in the form of words such as "two" or "three," it should be noted that these features also explicitly or implicitly include one or more of the number of features.

[0031] In the present invention, unless otherwise expressly specified or limited, terms such as "installation," "connection," and "fixation" should be understood broadly; for example, they may refer to fixed connection, detachable connection, or integral molding; they may refer to mechanical connection, direct connection, welding, or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specification and drawings in conjunction with specific circumstances.

[0032] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] like Figures 1-10 As shown, an embodiment of the present invention provides an efficient paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room, comprising a cleaning component 1 and an exhaust duct 2, wherein the cleaning component 1 comprises a first ring body 10, a fixing mechanism 11, a circular handle 12, a plurality of movable rods 13, a servo motor 14, a barrel body 15, a filter blind pipe 16, a plurality of cleaning mechanisms 17, a discharge mechanism 18 and a circular plate body 19, wherein the fixing mechanism 11 is arranged on the outer wall of the first ring body 10, and the outer wall of the first ring body 10 is evenly provided with first circular through holes 6, the exhaust duct 2 is fitted with the fixing mechanism 11, one end of the plurality of movable rods 13 passes through the first circular through hole 6 and is arranged on the circular plate body 19. On one side of the circular plate body 19, a round handle 12 is arranged at the other end of several movable rods 13, the barrel body 15 is rotatably connected to the other side of the circular plate body 19, and the filter blind pipe 16 is arranged on the inner wall of the barrel body 15, the servo motor 14 is arranged on one side of the circular plate body 19, and the output shaft of the servo motor 14 passes through the circular plate body 19 and is arranged at one end of the filter blind pipe 16, the discharge mechanism 18 is arranged on the barrel body 15 and the filter blind pipe 16, and several cleaning mechanisms 17 are evenly arranged on the barrel body 15 and the filter blind pipe 16, the outer wall of the circular plate body 19 is penetrated by a bellows 3, one end of the bellows 3 passes through the first ring body 10 and is provided with an air pump 4.

[0034] In this embodiment, specifically, the fixing mechanism 11 includes a second ring body 110, a third ring body 111, a plurality of threaded fixing rods 112, a conical outer tooth ring 113 and a plurality of conical inner threaded outer tooth rings 114, wherein the second ring body 110 is arranged on the outer wall of the first ring body 10, and the outer wall of the second ring body 110 is evenly provided with second circular through holes 21, the third ring body 111 is rotatably connected to the outer wall of the second ring body 110, and the conical outer tooth ring 113 is arranged on one side of the third ring body 111, a plurality of conical inner threaded outer tooth rings 114 are rotatably connected to the outer wall of the second ring body 110, and a plurality of conical inner threaded outer tooth rings 114 are all meshed with the conical outer tooth ring 113, and a plurality of threaded fixing rods 112 are meshed with the conical outer tooth ring 113. The outer wall of the fixed rod 112 is threadedly connected to the inner wall of the corresponding conical internal threaded outer gear ring 114, and the threaded fixing rod 112 is slidably connected to the inner wall of the second circular through hole 21, and the adjacent ends of several threaded fixing rods 112 are in contact with the outer wall of the exhaust duct 2. By setting the third ring body 111 as above, it rotates on the second ring body 110, and the third ring body 111 drives the conical outer gear ring 113 to rotate. The conical outer gear ring 113 drives several conical internal threaded outer gear rings 114 to rotate. The conical internal threaded outer gear ring 114 rotates on the threaded fixing rod 112, and the threaded fixing rod 112 moves to the outer wall of the exhaust duct 2, which is used to fix the first ring body 10 at the center of the exhaust duct 2.

[0035] In this embodiment, specifically, the cleaning mechanism 17 includes a square scraper 170, a block 171, a movable plate 172, a plurality of springs 173 and two suction pipes 174, wherein the square scraper 170 passes through the barrel body 15, and the square scraper 170 is fixedly connected to the barrel body 15, the upper surface of the square scraper 170 is provided with a movable groove 7, and the movable plate 172 is slidably connected to the inner wall of the movable groove 7, the square scraper 170 is arranged on the upper surface of the movable plate 172, and the square scraper 170 is fitted with the inner wall of the movable groove 7, the top ends of the plurality of springs 173 are evenly arranged on the lower surface of the movable plate 172, and the plurality of springs 173 are evenly arranged on the lower surface of the movable plate 172. The bottom ends of the springs 173 are evenly arranged on the inner bottom wall of the movable through groove 7, and the two suction pipes 174 are symmetrically arranged on the outer wall of the block 171, and the block 171 is fixedly connected to the two suction pipes 174, and the two suction pipes 174 pass through the barrel body 15 and the filter blind pipe 16 in sequence, and the two suction pipes 174 are fixedly connected to the barrel body 15 and the filter blind pipe 16. The elastic potential energy of the spring 173 set above drives the movable plate 172 to move, and the movable plate 172 drives the square scraper 170 to move to the inner wall of the exhaust duct 2. The suction pipe 174 scrapes the paint residue in the exhaust duct 2 against the square scraper 170 and absorbs it into the filter blind pipe 16.

[0036] In this embodiment, specifically, the discharge mechanism 18 includes an externally threaded circular plate 180, a circular rod body 181, a circular scraper 182 and an operating handle 183, wherein a threaded through hole 5 is opened on the inner wall of the barrel body 15, and the outer wall of the externally threaded circular plate 180 is threadedly connected to the inner wall of the threaded through hole 5, one end of the circular rod body 181 is arranged on one side of the externally threaded circular plate 180, and the operating handle 183 is arranged on the other side of the externally threaded circular plate 180, the other end of the circular rod body 181 is rotatably connected to one side of the circular scraper 182, and the outer wall of the circular scraper 182 is in contact with the inner wall of the filter blind pipe 16, through the above arrangement, the relevant personnel hold the operating handle 183 to drive the externally threaded circular plate 180 to rotate out in the threaded through hole 5, and the externally threaded circular plate 180 drives the circular scraper 182 to move in the filter blind pipe 16 through the circular rod body 181, and the circular scraper 182 is used to scrape off the paint residue in the filter blind pipe 16 and discharge it through the threaded through hole 5.

[0037] In this embodiment, specifically, the inner wall of the movable through groove 7 is symmetrically provided with a first sliding groove 8, and the outer wall of the movable plate 172 is symmetrically provided with a first slider 9. The outer wall of the first slider 9 is slidably connected to the inner wall of the first sliding groove 8. Through the above setting, the first slider 9 is slid in the first sliding groove 8, which can not only assist the movable plate 172 to move, but also limit the position of the movable plate 172.

[0038] In this embodiment, specifically, the inner wall of the second circular through hole 21 is evenly provided with a second slider 23, and the outer wall of the threaded fixing rod 112 is evenly provided with a second sliding groove 22. The outer wall of the second slider 23 is slidably connected to the inner wall of the second sliding groove 22. Through the above setting, the second slider 23 is slid in the second sliding groove 22, which can not only assist the threaded fixing rod 112 to move, but also place the threaded fixing rod 112 to rotate.

[0039] In this embodiment, specifically, the outer wall of the third ring body 111 is evenly provided with turning handles 20 , which makes it convenient for relevant personnel to hold the turning handles 20 and drive the third ring body 111 to rotate.

[0040] In this embodiment, specifically, an arcuate portion 24 is provided on the upper surface of the square scraper 170 , and the arcuate portion 24 is provided to assist the square scraper 170 in moving to the inner wall of the exhaust duct 2 with different diameters.

[0041] When the present invention is working: the relevant personnel hold the handle 20 to drive the third ring body 111 to rotate on the second ring body 110, the third ring body 111 drives the conical outer gear ring 113 to rotate, the conical outer gear ring 113 drives several conical inner thread outer gear rings 114 to rotate, the conical inner thread outer gear ring 114 rotates on the threaded fixing rod 112, and the threaded fixing rod 112 moves to the outer wall of the exhaust duct 2, which is used to fix the first ring body 10 at the center of the exhaust duct 2.

[0042] The square scraper 170 moves to the inner wall of the exhaust duct 2 through the arc portion 24, and the elastic potential energy of the spring 173 drives the movable plate 172 to move, and the movable plate 172 drives the square scraper 170 to move to the inner wall of the exhaust duct 2, so that the square scraper 170 fits tightly against the inner wall of the exhaust duct 2.

[0043] After that, the air pump 4 and the servo motor 14 are started. The air pump 4 is used to extract the gas in the barrel 15 and the filter blind pipe 16 through the bellows 3. The suction pipe 174 and the square scraper 170 scrape the paint residue in the exhaust duct 2 and absorb it into the filter blind pipe 16, which is convenient for storing and discharging the paint residue.

[0044] The output shaft of the servo motor 14 drives the filter blind tube 16 to rotate, and the filter blind tube 16 drives the barrel body 15 to rotate. The barrel body 15 drives the blocks 171 and 171 to rotate, and the block 171 drives the square scraper 170 to rotate on the inner wall of the exhaust duct 2 to scrape off the paint residue on the inner wall of the exhaust duct 2.

[0045] When it is necessary to discharge the paint residue in the filter blind tube 16, it is only necessary to reverse the above steps to take it out, and the relevant personnel will hold the operating handle 183 to drive the external threaded circular plate 180 to rotate out in the threaded through hole 5. The external threaded circular plate 180 drives the circular scraper 182 to move in the filter blind tube 16 through the circular rod body 181. The circular scraper 182 is used to scrape off the paint residue in the filter blind tube 16 and discharge it through the threaded through hole 5. After the paint residue is discharged, the relevant personnel only needs to hold the operating handle 183 to rotate the external threaded circular plate 180 in the threaded through hole 5 to fix the positions of the external threaded circular plate 180, the circular rod body 181 and the circular scraper 182.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications and substitutions within the technical scope disclosed in the present invention, and such modifications and substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A highly efficient paint residue cleaning device for the inner wall of an exhaust duct in a paint spraying room, comprising a cleaning component (1) and an exhaust duct (2), characterized in that: The cleaning assembly (1) comprises a first ring body (10), a fixing mechanism (11), a circular handle (12), a plurality of movable rods (13), a servo motor (14), a barrel body (15), a filter blind pipe (16), a plurality of cleaning mechanisms (17), a discharge mechanism (18) and a circular plate body (19), wherein: The fixing mechanism (11) is arranged on the outer wall of the first ring body (10), and the outer wall of the first ring body (10) is evenly provided with first circular through holes (6), and the exhaust duct (2) is fitted with the fixing mechanism (11); One end of a plurality of the movable rods (13) passes through the first circular through hole (6) and is arranged on one side of the circular plate (19), and the circular handle (12) is arranged on the other end of the plurality of the movable rods (13); The barrel body (15) is rotatably connected to the other side of the circular plate body (19), and the filtering blind tube (16) is arranged on the inner wall of the barrel body (15); The servo motor (14) is arranged on one side of the circular plate (19), and the output shaft of the servo motor (14) passes through the circular plate (19) and is arranged at one end of the filtering blind pipe (16); The discharge mechanism (18) is arranged on the barrel body (15) and the filter blind tube (16), and a plurality of the cleaning mechanisms (17) are evenly arranged on the barrel body (15) and the filter blind tube (16); A bellows (3) passes through the outer wall of the circular plate body (19), one end of the bellows (3) passes through the first ring body (10) and is provided with an air pump (4).

2. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 1 is characterized by: The fixing mechanism (11) comprises a second ring body (110), a third ring body (111), a plurality of threaded fixing rods (112), a conical outer toothed ring (113) and a plurality of conical inner threaded outer toothed rings (114), wherein: The second ring body (110) is arranged on the outer wall of the first ring body (10), and the outer wall of the second ring body (110) is evenly provided with second circular through holes (21); The third ring body (111) is rotatably connected to the outer wall of the second ring body (110), and the conical outer gear ring (113) is arranged on one side of the third ring body (111); A plurality of the tapered internally threaded external toothed rings (114) are rotatably connected to the outer wall of the second ring body (110), and the plurality of the tapered internally threaded external toothed rings (114) are all meshed with the tapered external toothed ring (113); The outer walls of several of the threaded fixing rods (112) are threadedly connected to the inner wall of the corresponding conical internal thread outer gear ring (114), and the threaded fixing rods (112) are slidably connected to the inner wall of the second circular through hole (21), and the adjacent ends of several of the threaded fixing rods (112) are in contact with the outer wall of the exhaust duct (2).

3. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 1 is characterized by: The cleaning mechanism (17) includes a square scraper (170), a block (171), a movable plate (172), a plurality of springs (173) and two suction pipes (174), wherein: The square scraper (170) passes through the barrel (15), and the square scraper (170) is fixedly connected to the barrel (15); A movable through groove (7) is provided on the upper surface of the square scraper (170), and the movable plate (172) is slidably connected to the inner wall of the movable through groove (7); The square scraper (170) is arranged on the upper surface of the movable plate (172), and the square scraper (170) is in contact with the inner wall of the movable through groove (7); The top ends of a plurality of the springs (173) are evenly arranged on the lower surface of the movable plate (172), and the bottom ends of a plurality of the springs (173) are evenly arranged on the inner bottom wall of the movable through groove (7); The two suction pipes (174) are symmetrically arranged on the outer wall of the block (171), and the block (171) is fixedly connected to the two suction pipes (174); The two suction pipes (174) sequentially penetrate the barrel body (15) and the filtering blind pipe (16), and both the suction pipes (174) are fixedly connected to the barrel body (15) and the filtering blind pipe (16).

4. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 1 is characterized by: The discharge mechanism (18) includes an external threaded circular plate (180), a circular rod (181), a circular scraper (182) and an operating handle (183), wherein: The inner wall of the barrel body (15) is provided with a threaded through hole (5), and the outer wall of the externally threaded circular plate (180) is threadedly connected to the inner wall of the threaded through hole (5); One end of the circular rod (181) is arranged on one side of the externally threaded circular plate (180), and the operating handle (183) is arranged on the other side of the externally threaded circular plate (180); The other end of the circular rod (181) is rotatably connected to one side of the circular scraper (182), and the outer wall of the circular scraper (182) is in contact with the inner wall of the filtering blind tube (16).

5. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 3 is characterized by: The inner wall of the movable through groove (7) is symmetrically provided with a first sliding groove (8), and the outer wall of the movable plate (172) is symmetrically provided with a first sliding block (9), and the outer wall of the first sliding block (9) is slidably connected to the inner wall of the first sliding groove (8).

6. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 2 is characterized in that: The inner wall of the second circular through hole (21) is evenly provided with a second sliding block (23), the outer wall of the threaded fixing rod (112) is evenly provided with a second sliding groove (22), and the outer wall of the second sliding block (23) is slidably connected to the inner wall of the second sliding groove (22).

7. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 2 is characterized by: The outer wall of the third ring body (111) is evenly provided with turning handles (20).

8. The high-efficiency paint residue cleaning device for the inner wall of the exhaust duct of a paint spraying room according to claim 3 is characterized by: An arc-shaped portion (24) is provided on the upper surface of the square scraper (170).

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