Air dust filtering device for household textile fabric manufacturing workshop

Abstract

The invention discloses an air dust filtering device for a household textile fabric manufacturing workshop. Belongs to the technical field of workshop air filtration, and the structure can comprehensively clean and reduce dust remaining on filtration parts, and comprises a box body, two sides of the box body are fixedly connected with an air inlet pipe and an air outlet pipe respectively, a shielding cover is mounted above the box body, a partition plate is further arranged on the inner wall of the box body, and a plurality of filtration parts are arranged on the partition plate. A cleaning device is arranged between the box body and the upper portion of the partition plate, the lower surface of the box body is fixedly connected with an ash receiving hopper, an ash discharging valve is arranged below the ash receiving hopper, and a shielding device is further arranged on the inner wall of the box body and used for separating the ash receiving hopper from the box body. The surface of the air supply assembly is fixedly connected with a plurality of air outlet rods, and the surfaces of the multiple air outlet rods are slidably connected with movable piston pipes.

Description

Technical Field

[0001] This invention relates to the field of workshop air filtration technology, specifically to an air dust filtration device for household textile fabric manufacturing workshops. Background Technology

[0002] Home textile fabrics are a general term for textiles suitable for home settings, encompassing materials used in bedding, curtains, sofa covers, tablecloths, carpets, and other applications. They combine practicality with home aesthetics and serve as a core soft furnishing medium for creating a home atmosphere. The fabrics are rich in materials, with natural fibers such as pure cotton, linen, and wool being skin-friendly, breathable, and warm to the touch, suitable for bedding, cushions, and other intimate settings. Chemical fibers and blends such as polyester, chenille, and brushed fabrics are wear-resistant, wrinkle-resistant, and easy to care for, making them more suitable for high-frequency use areas such as curtains and sofa covers.

[0003] A textile workshop is a place where textile work is carried out. Due to the large amount of cotton lint, dust, and other impurities in a typical textile workshop, ventilation equipment is needed to purify the air and improve the overall air quality. In existing technology, baghouse dust collectors are used for air filtration, such as the one disclosed in CN116272220B. This invention relates to the field of industrial dust removal technology, specifically a baghouse dust collector, including a dust collection box fixedly mounted on a maintenance bracket. Dust collection bags are arranged inside the dust collection box, and the bottom of the dust collection box has a light phase outlet and a heavy phase outlet. The dust collector has a pulse back-flushing structure at the top for the filter bags and a lifting magnetic suction structure at the bottom. A hopper is fixedly installed inside the dust collector, located below a retainer. A separating cylinder is fixedly connected to the bottom of the hopper. The separating cylinder has a centrifugal separation structure, and two outlets are provided on both sides. Separation troughs are fixedly connected to the outlets, and converging pipe structures are provided on both sides of the separation troughs. This invention achieves the purpose of pre-separating waste particles collected by the bag filter while collecting them, facilitating subsequent classification and processing.

[0004] However, most existing baghouse dust collectors use pulse-jet cleaning for post-filtration cleaning. This method is limited by factors such as the effective range of the jet airflow, the distribution of impact force, and the structural characteristics of the filter bags. It cannot completely peel off and remove dust adhering to the filter bag surface, easily causing persistent dust residue and accumulation. Long-term dust accumulation on the filter bag surface continuously increases the filtration resistance, directly leading to a significant decrease in the subsequent dust filtration efficiency of the dust collector. Furthermore, to alleviate the increased filtration resistance and maintain basic dust removal performance, operators need to significantly increase the frequency of pulse-jet cleaning operations, increasing the operating load of the pulse-jet system. Therefore, there is an urgent need to develop an air dust filtration device for household textile fabric manufacturing workshops to solve the problems in existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide an air dust filtration device for household textile fabric manufacturing workshops, which can thoroughly clean and reduce dust residue on the filter section, and has a simple structure and is easy to use, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An air dust filtration device for a household textile fabric manufacturing workshop includes a housing, with an inlet pipe and an outlet pipe fixedly connected to both sides of the housing, a cover installed on the top of the housing, a partition provided on the inner wall of the housing, multiple sets of filter sections provided on the partition, a cleaning device provided between the housing and the partition, a dust collection hopper fixedly connected to the lower surface of the housing, a dust discharge valve provided below the dust collection hopper, and a cover provided on the inner wall of the housing to separate the dust collection hopper from the housing. The cleaning device includes an air supply assembly mounted on the surface of the housing. Multiple air outlet rods are fixedly connected to the surface of the air supply assembly. A movable piston tube is slidably connected to the surface of the multiple air outlet rods. A nozzle tube is rotatably connected to the surface of the movable piston tube. Multiple spray holes are opened on the surface of the nozzle tube. The cleaning device also includes a drive assembly and a transmission assembly. The drive assembly is used to control the multiple movable piston tubes and nozzle tubes to move axially along the air outlet rods and extend into the filter section to cooperate with the air supply assembly for air blowing cleaning. The transmission assembly is used to control the nozzle tubes to rotate when the movable piston tubes move.

[0007] As a further aspect of the present invention: the drive assembly includes a control frame, the control frame is fixedly connected to a plurality of movable piston tubes, the housing is rotatably connected to the inner wall of the partition with a drive screw, the drive screw is threadedly connected to the inner wall of the control frame, a drive motor is mounted on the surface of the housing, and the output end of the drive motor is fixedly connected to one end of the drive screw.

[0008] By adopting the above technical solution, during use, when the drive motor is turned on, the drive motor can drive the drive screw to rotate. When the drive screw rotates, it can drive the control frame to move. The control frame drives multiple moving piston tubes to move axially along the air outlet rod.

[0009] As a further embodiment of the present invention: the transmission assembly includes a shaft rotatably connected to the inner wall of the movable piston tube, with a rotating gear and a bevel gear fixedly connected to both ends of the shaft, and a bevel gear fixedly connected to the surface of the nozzle tube, the bevel gear and the bevel gear meshing with each other, and a rack fixedly connected to the surface of the partition plate, the rack penetrating the movable piston tube, the rotating gear and the rack meshing with each other.

[0010] By adopting the above technical solution, during use, when the moving piston tube moves axially along the air outlet rod, the rotating gear and rack one can drive the shaft to rotate, the shaft drives bevel gear one to rotate, and bevel gear one and bevel gear two can drive the nozzle tube to rotate, so that the nozzle tube can rotate and spray air, thereby improving the air spray cleaning effect.

[0011] As a further aspect of the present invention: multiple sets of guide rails are fixedly connected to the surface of the partition, each set of guide rails has two rails, and each set of guide rails is slidably connected to the inner wall of the movable piston tube.

[0012] By adopting the above technical solution, each set of guide rails guides the movement of each moving piston tube, further improving the stability of the overall movement.

[0013] As a further aspect of the present invention: the air supply assembly includes an air pump installed on the outer surface of the housing, the input end of the air pump is fixedly connected to a filter tube, the output end of the air pump is fixedly connected to a pipe body, the outer surface of the housing is fixedly connected to a main pipe, the pipe body is connected to the main pipe, the surface of the main pipe is fixedly connected to multiple branch pipes, the multiple branch pipes extend into the housing and are fixedly connected to the housing, and the air outlet rod is fixed on the branch pipes.

[0014] By adopting the above technical solution, when supplying gas, the gas pump is turned on, the gas pump draws in gas through the filter pipe and filters the gas, the filtered gas is then fed into the main pipe and branch pipes, the branch pipes feed the gas into the outlet rod, and the outlet rod feeds the gas into the nozzle pipe for spraying, blowing off the dust adsorbed on the outer surface of the filter section.

[0015] As a further aspect of the present invention: the filtration section includes a frame, a filter bag is fitted on the outer surface of the frame, and a plurality of bolts are inserted into the surface of the frame, the plurality of bolts passing through the filter bag and being threadedly connected to the inner wall of the partition.

[0016] As a further aspect of the present invention: a plurality of the spray holes are evenly distributed around and on the lower surface of the nozzle tube, blowing air along the axial and radial directions of the filter section.

[0017] As a further embodiment of the present invention: the shielding device includes a fixed seat fixed in the inner wall of the box, two unfolding shafts are rotatably connected to the inner wall of the fixed seat, a shielding plate is fixedly connected to the surface of the unfolding shaft, two guide blocks are fixedly connected to the inner wall of the box, and the guide blocks cooperate with the shielding plate to realize the shielding operation. The shielding device also includes a control component for controlling the unfolding shaft and the shielding plate to rotate, so as to realize the shielding and opening operations.

[0018] By adopting the above technical solution, during use, opening the control component can drive the unfolding shaft to rotate, which in turn drives the baffle plate to rotate. When the baffle plate contacts the guide block, it achieves the baffle operation, enabling dust cleaning. At the same time, the equipment can also perform continuous filtration. Conversely, opening the baffle plate allows dust to be easily guided into the dust collection hopper for collection.

[0019] As a further aspect of the present invention: the control component includes an unfolding gear fixed on the surface of the unfolding shaft, a cylinder is fixedly connected to the surface of the housing, and a rack is fixedly connected to the output end of the cylinder, the rack being meshed with the unfolding gear.

[0020] By adopting the above technical solution, when controlling the operation, the cylinder is opened, which can drive the rack two to move. The rack two, together with the two unfolding gears, can drive the unfolding shaft to rotate, thereby realizing the control operation.

[0021] As a further aspect of the present invention: the fixing base is arranged in an isosceles triangle with the tip pointing upwards.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving component drives the moving piston tube and nozzle tube to move axially along the air outlet rod and extend into the filter section. During the movement, the transmission component can drive the nozzle tube to rotate, and the air supply component inputs gas into the air outlet rod and nozzle tube. The nozzle tube rotates while spraying air, blowing off the dust adhering to the outer surface of the filter section. Compared with the pulse cleaning of the prior art, this invention solves the problems of incomplete pulse cleaning range, easy dust residue, and reduced filtration efficiency. The present invention achieves comprehensive and large-area cleaning, significantly improves the overall cleaning effect, and reduces the cleaning frequency. After the shielding device separates the ash hopper from the housing, the housing can normally take in air through the inlet pipe, filter air through the filter section, and exhaust air through the outlet pipe. At the same time, the ash discharge valve can be opened to clean the dust in the ash hopper, reducing the impact of machine downtime during ash cleaning on the continuity of air filtration in the workshop and improving production efficiency. Dust blown off during cleaning is temporarily stored in the dust collection hopper. The shielding device can prevent external airflow or dust from flowing back into the housing when cleaning the dust collection hopper, reducing the amount of dust that re-adheres to the surface of the filter section and ensuring that the filter device can continuously and stably perform its dust filtration function.

[0023] Other features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention; Figure 2This is a side view of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention. Figure 3 This is an example of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention. Figure 2 Schematic diagram of the structure at point A in the middle; Figure 4 This is a cross-sectional view of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention. Figure 5 This is a cross-sectional view of an air dust filtration device for a household textile fabric manufacturing workshop according to another embodiment of the present invention. Figure 6 This is a partial structural diagram of an air dust filtration device in a household textile fabric manufacturing workshop according to an embodiment of the present invention; Figure 7 This is an example of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention. Figure 6 Schematic diagram of the structure at point B; Figure 8 This is a partial structural schematic diagram of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention; Figure 9 This is an example of an air dust filtration device for a household textile fabric manufacturing workshop according to an embodiment of the present invention. Figure 8 A schematic diagram of the cross-sectional structure; Figure 10 This is an exploded structural diagram of the filter section of an air dust filtration device for a household textile fabric manufacturing workshop, according to an embodiment of the present invention. The reference numerals in the diagram are as follows: 1. Housing; 2. Ash hopper; 3. Ash discharge valve; 4. Air inlet pipe; 5. Air outlet pipe; 6. Cover; 7. Cleaning device; 71. Drive assembly; 711. Drive motor; 712. Drive screw; 713. Control frame; 72. Air supply assembly; 721. Air pump; 722. Filter pipe; 723. Pipe body; 724. Main pipe; 725. Branch pipe; 73. Air outlet rod; 74. Moving piston pipe; 75. Sprayer... 76. Head tube; 77. Nozzle; 77. Transmission assembly; 771. Shaft; 772. Rotary gear; 773. Bevel gear one; 774. Bevel gear two; 775. Rack one; 78. Guide rail; 8. Shielding device; 81. Fixing base; 82. Deployment gear; 83. Rack two; 84. Cylinder; 85. Guide block; 86. Deployment shaft; 87. Shielding plate; 9. Filter section; 91. Filter bag; 92. Frame; 93. Bolt; 10. Partition plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In this embodiment of the invention, an air dust filtration device for a household textile fabric manufacturing workshop is described below. Figure 1-10 As shown, the device includes a housing 1, with an air inlet pipe 4 and an air outlet pipe 5 fixedly connected to both sides of the housing 1. A cover 6 is installed on the top of the housing 1. A partition 10 is also provided on the inner wall of the housing 1. Multiple sets of filter sections 9 are provided on the partition 10. A cleaning device 7 is provided between the housing 1 and the partition 10. A ash hopper 2 is fixedly connected to the lower surface of the housing 1. An ash discharge valve 3 is provided below the ash hopper 2. A cover 8 is also provided on the inner wall of the housing 1 to separate the ash hopper 2 from the housing 1.

[0027] In this embodiment, the cleaning device 7 includes an air supply assembly 72 disposed on the surface of the housing 1. Multiple air outlet rods 73 are fixedly connected to the surface of the air supply assembly 72. A movable piston tube 74 is slidably connected to the surface of the multiple air outlet rods 73. A nozzle tube 75 is rotatably connected to the surface of the movable piston tube 74. Multiple spray holes 76 are formed on the surface of the nozzle tube 75, and the multiple spray holes 76 are evenly distributed around the nozzle tube 75 and on its lower surface, blowing air along the axial and radial directions of the filter section 9. The cleaning device 7 also includes a drive assembly 71 and a transmission assembly 77. Drive assembly 71 controls multiple movable piston tubes 74 and nozzle tubes 75 to move axially along the air outlet rod 73, extending into the filter section 9 to cooperate with the air supply assembly 72 for air blowing cleaning. Transmission assembly 77 controls the nozzle tubes 75 to rotate when the movable piston tubes 74 move. Drive assembly 71 includes a control frame 713, which is fixedly connected to multiple movable piston tubes 74. A drive screw 712 is rotatably connected to the inner wall of the housing 1 and the partition 10. The drive screw 712 is threadedly connected to the inner wall of the control frame 713. The surface of housing 1 is mounted with... A drive motor 711 is provided, and its output end is fixedly connected to one end of a drive screw 712. The transmission assembly 77 includes a shaft 771 rotatably connected to the inner wall of the movable piston tube 74. A rotating gear 772 and a first bevel gear 773 are fixedly connected to both ends of the shaft 771. A second bevel gear 774 is fixedly connected to the surface of the nozzle tube 75, and the first bevel gear 773 meshes with the second bevel gear 774. A rack 775 is fixedly connected to the surface of the partition plate 10, and the rack 775 passes through the movable piston tube 74. The rotating gear 772... 72 is engaged with rack 775. The air supply assembly 72 includes an air pump 721 installed on the outer surface of the housing 1. A filter tube 722 is fixedly connected to the input end of the air pump 721. A pipe body 723 is fixedly connected to the output end of the air pump 721. A main pipe 724 is fixedly connected to the outer surface of the housing 1. The pipe body 723 communicates with the main pipe 724. Multiple branch pipes 725 are fixedly connected to the surface of the main pipe 724. The multiple branch pipes 725 extend into the housing 1 and are fixedly connected to the housing 1. An air outlet rod 73 is fixed on the branch pipes 725.

[0028] During use, when the drive motor 711 is turned on, it drives the drive screw 712 to rotate. When the drive screw 712 rotates, it moves the control frame 713. The control frame 713 then moves multiple movable piston tubes 74 axially along the air outlet rod 73, causing the nozzle tube 75 to extend into the filter section 9. Simultaneously, when the movable piston tubes 74 move axially along the air outlet rod 73, the rotating gear 772, in conjunction with the rack 775, drives the shaft 771 to rotate. The shaft 771 then drives the bevel gear 773 to rotate. The first gear 773, in conjunction with the second bevel gear 774, can drive the nozzle pipe 75 to rotate, allowing the nozzle pipe 75 to rotate. At the same time, the air pump 721 is turned on, and the air pump 721 draws in air through the filter pipe 722 and filters the air. After filtration, the pipe body 723 inputs the air into the main pipe 724 and the branch pipe 725. The branch pipe 725 inputs the air into the air outlet rod 73, and the air outlet rod 73 inputs the air into the nozzle pipe 75 for spraying. The nozzle pipe 75 rotates and sprays air, blowing air into the filter section 9 in the axial and radial directions, blowing off the dust adsorbed on the outer surface of the filter section 9.

[0029] In this embodiment, multiple sets of guide rails 78 are fixedly connected to the surface of the partition 10. Each set of guide rails 78 has two members. Each set of guide rails 78 is slidably connected to the inner wall of the movable piston tube 74. Each set of guide rails 78 guides the movement of each movable piston tube 74, thereby further improving the stability of the overall movement.

[0030] In this embodiment, the filter section 9 includes a frame 92, a filter bag 91 is fitted on the outer surface of the frame 92, and a plurality of bolts 93 are inserted into the surface of the frame 92. The plurality of bolts 93 penetrate the filter bag 91 and are threadedly connected to the inner wall of the partition plate 10.

[0031] In this embodiment, the shielding device 8 includes a fixed base 81 fixed in the inner wall of the housing 1. The fixed base 81 is arranged in an isosceles triangle with the tip pointing upward. Two unfolding shafts 86 are rotatably connected to the inner wall of the fixed base 81. A shielding plate 87 is fixedly connected to the surface of the unfolding shafts 86. Two guide blocks 85 are fixedly connected to the inner wall of the housing 1. The guide blocks 85 cooperate with the shielding plate 87 to realize the shielding operation. The shielding device 8 also includes a control component for controlling the unfolding shafts 86 and the shielding plate 87 to rotate, thereby realizing the shielding and opening operations. The control component includes an unfolding gear 82 fixed to the surface of the unfolding shafts 86. A cylinder 84 is fixedly connected to the surface of the housing 1. A rack 83 is fixedly connected to the output end of the cylinder 84. The rack 83 meshes with the unfolding gear 82.

[0032] During operation, the control unit is activated, opening cylinder 84. Cylinder 84 drives rack 2 83 to move, and rack 2 83, in conjunction with two unfolding gears 82, drives unfolding shaft 86 to rotate, thus achieving the control operation. Unfolding shaft 86 drives baffle 87 to rotate. When baffle 87 contacts guide block 85, it performs a blocking operation, enabling dust cleaning. The equipment can also perform continuous filtration during this process. Conversely, opening the baffle allows dust to be easily collected in ash hopper 2. The working principle of this invention is as follows: When filtering workshop air, the gas in the workshop enters the housing 1 through the air inlet pipe 4. After entering the housing 1, the gas passes through the filter bag 91 in the filter section 9 to intercept dust. The filtered air passes through the filter bag 91 to the top of the partition 10 and is discharged through the air outlet pipe 5, thus realizing the overall filtration operation. When it is necessary to clean the filter bag 91, the drive motor 711 can be turned on first. The drive motor 711 can drive the drive screw 712 to rotate. When the drive screw 712 rotates, it can drive the control frame 713 to move. The control frame 713 drives multiple moving piston pipes 74 to move axially along the air outlet rod 73, thereby driving the nozzle pipe 75 to extend into the filter section 9. When the moving piston pipe 74 moves axially along the air outlet rod 73... The rotating gear 772, in conjunction with rack 775, drives shaft 771 to rotate. Shaft 771 drives bevel gear 773 to rotate. Bevel gear 773, in conjunction with bevel gear 774, drives nozzle pipe 75 to rotate. Simultaneously, the air pump 721 is turned on. The air pump 721 draws in air through filter pipe 722 and filters the gas. After filtration, pipe 723 inputs the gas into main pipe 724 and branch pipe 725. Branch pipe 725 inputs the gas into air outlet rod 73. Air outlet rod 73 inputs the gas into nozzle pipe 75 for spraying. The nozzle pipe 75 rotates and sprays air, blowing air into filter section 9 in the axial and radial directions, blowing off the dust adsorbed on the outer surface of filter section 9. The blown-off dust enters the dust collection hopper 2 for collection. When air filtration is required and dust in the ash hopper 2 needs to be cleaned, first open cylinder 84. Cylinder 84 can drive rack 2 83 to move. Rack 2 83, together with two unfolding gears 82, can drive unfolding shaft 86 to rotate, realizing the control operation. Unfolding shaft 86 drives baffle plate 87 to rotate. When baffle plate 87 contacts guide block 85, the baffle operation is realized. At this time, ash discharge valve 3 can be opened to discharge the dust in ash hopper 2. In fact, baffle plate 87 and guide plate first block and seal, and the housing 1 can perform normal filtration operation.

[0033] This invention provides an air dust filtration device for household textile fabric manufacturing workshops, which can achieve comprehensive cleaning, reduce dust residue on the filter, and reduce the frequency of cleaning.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This method of description is merely for clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air dust filtration device for a household textile fabric manufacturing workshop, characterized in that, The box includes a housing (1), with an air inlet pipe (4) and an air outlet pipe (5) fixedly connected to both sides of the housing (1), a cover (6) installed on the top of the housing (1), a partition (10) provided on the inner wall of the housing (1), a plurality of filter sections (9) provided on the partition (10), a cleaning device (7) provided between the housing (1) and the partition (10), a ash hopper (2) fixedly connected to the lower surface of the housing (1), an ash discharge valve (3) provided below the ash hopper (2), and a cover (8) provided on the inner wall of the housing (1) to separate the ash hopper (2) from the housing (1). The cleaning device (7) includes an air supply assembly (72) disposed on the surface of the housing (1). Multiple air outlet rods (73) are fixedly connected to the surface of the air supply assembly (72). A movable piston tube (74) is slidably connected to the surface of the multiple air outlet rods (73). A nozzle tube (75) is rotatably connected to the surface of the movable piston tube (74). Multiple spray holes (76) are opened on the surface of the nozzle tube (75). The cleaning device (7) also includes a drive assembly (71) and a transmission assembly (77). The drive assembly (71) is used to control the multiple movable piston tubes (74) and the nozzle tube (75) to move axially along the air outlet rods (73) and extend into the filter section (9) to cooperate with the air supply assembly (72) for air blowing cleaning. The transmission assembly (77) is used to control the nozzle tube (75) to rotate when the movable piston tube (74) moves.

2. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 1, characterized in that, The drive assembly (71) includes a control frame (713), which is fixedly connected to a plurality of movable piston tubes (74). The housing (1) is rotatably connected to the inner wall of the partition (10) with a drive screw (712). The drive screw (712) is threadedly connected to the inner wall of the control frame (713). A drive motor (711) is mounted on the surface of the housing (1). The output end of the drive motor (711) is fixedly connected to one end of the drive screw (712).

3. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 1, characterized in that, The transmission assembly (77) includes a shaft (771) rotatably connected to the inner wall of the movable piston tube (74). A rotating gear (772) and a bevel gear (773) are fixedly connected to both ends of the shaft (771). A bevel gear (774) is fixedly connected to the surface of the nozzle tube (75). The bevel gear (773) meshes with the bevel gear (774). A rack (775) is fixedly connected to the surface of the partition (10). The rack (775) passes through the movable piston tube (74). The rotating gear (772) meshes with the rack (775).

4. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 2, characterized in that, The surface of the partition (10) is fixedly connected to multiple sets of guide rails (78), each set of guide rails (78) has two rails, and each set of guide rails (78) is slidably connected to the inner wall of the movable piston tube (74).

5. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 1, characterized in that, The gas supply assembly (72) includes a gas pump (721) installed on the outer surface of the housing (1). The input end of the gas pump (721) is fixedly connected to a filter tube (722), and the output end of the gas pump (721) is fixedly connected to a pipe body (723). The outer surface of the housing (1) is fixedly connected to a main pipe (724). The pipe body (723) is connected to the main pipe (724). The surface of the main pipe (724) is fixedly connected to multiple branch pipes (725). The multiple branch pipes (725) extend into the housing (1) and are fixedly connected to the housing (1). The gas outlet rod (73) is fixed on the branch pipes (725).

6. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 1, characterized in that, The filter section (9) includes a frame (92), on the outer surface of the frame (92) a filter bag (91) is fitted, and multiple bolts (93) are inserted into the surface of the frame (92). The multiple bolts (93) penetrate the filter bag (91) and are threadedly connected to the inner wall of the partition (10).

7. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 1, characterized in that, Multiple nozzles (76) are evenly distributed around and on the lower surface of the nozzle tube (75) to blow air along the axial and radial direction of the filter section (9).

8. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 1, characterized in that, The shielding device (8) includes a fixed seat (81) fixed in the inner wall of the box (1). The inner wall of the fixed seat (81) is rotatably connected to two unfolding shafts (86). A shielding plate (87) is fixedly connected to the surface of the unfolding shafts (86). The inner wall of the box (1) is fixedly connected to two guide blocks (85). The guide blocks (85) cooperate with the shielding plate (87) to realize the shielding operation. The shielding device (8) also includes a control component for controlling the unfolding shafts (86) and the shielding plate (87) to rotate, so as to realize the shielding and opening operations.

9. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 8, characterized in that, The control component includes an unfolding gear (82) fixed on the surface of the unfolding shaft (86), a cylinder (84) fixedly connected to the surface of the housing (1), a rack (83) fixedly connected to the output end of the cylinder (84), and the rack (83) meshing with the unfolding gear (82).

10. The air dust filtration device for a household textile fabric manufacturing workshop according to claim 8, characterized in that, The fixing base (81) is arranged in an isosceles triangle with the tip pointing upwards.

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