Gas filtering equipment for production workshop

Abstract

The invention discloses gas filtering equipment for a production workshop. The gas filtering equipment comprises a filtering cylinder, an air inlet pipe is fixedly arranged on the periphery of the filtering cylinder, an air outlet pipe is arranged at the top of the filtering cylinder, a discharging opening is formed in the bottom of the filtering cylinder, a primary-efficiency filtering plate is arranged in the filtering cylinder, and a medium-efficiency filtering plate and a high-efficiency filtering plate are sequentially arranged above the primary-efficiency filtering plate; a fixed pipe is arranged at the bottom of the primary filter plate, cleaning bristles are arranged on the periphery of the fixed pipe in an array mode, a driving assembly is arranged below the center of the fixed pipe, and during use, when the fixed pipe rotates, the fixed pipe synchronously drives a gear to revolve around an impeller as the center, and meanwhile, the effect that the gear rotates under the action of a first tooth groove is achieved; the gear rotates to drive the fixed pipe to rotate through the connecting shaft, and the fixed pipe rotates to enable the cleaning bristles arranged on the fixed pipe in an array mode to rotate, so that the fixed pipe rotates while rotating around the impeller as the center, and the cleaning efficiency of the primary filter plate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gas filtering, in particular to a gas filtering device used in a production workshop. Background Art

[0002] In the plastic box production workshop, various harmful gases and particles are generated during the plastic processing, and dust and particles in the air may enter the production equipment, causing equipment wear and failure, and increasing maintenance costs. Therefore, the use of gas filtration equipment in the plastic box production workshop is a key facility to ensure the air quality in the workshop.

[0003] Chinese Patent Publication No.: CN219559060U discloses a gas filtering device, including an equipment mounting frame, a filter cartridge is arranged on the equipment mounting frame, an air outlet cylinder connected to the interior of the filter cartridge is connected to the upper portion of the filter cartridge, a dust hopper connected to the interior of the filter cartridge is arranged at the bottom of the filter cartridge, a dust bucket is arranged at the bottom of the dust hopper, the bottom of the dust hopper has a dust hopper opening and the dust hopper opening matches the upper opening of the dust bucket and enables the dust hopper to be connected to the interior of the dust bucket, a rolling guide plate is arranged inside the equipment mounting frame, the dust bucket is supported on the rolling guide plate by a lifting support assembly, an air inlet hole is arranged on the side of the dust hopper, and an air outlet hole is arranged on the air outlet cylinder.

[0004] In the prior art, gas filtration equipment generally has multiple groups of filter plates or filter meshes in the filter cartridge to filter the gas delivered to the filter cartridge. However, in actual use, after long-term use, the filter plates or filter meshes may be blocked by a large amount of dust and other particulate matter, resulting in increased wind resistance, thereby affecting the efficiency of the entire gas filtration equipment.

[0005] Therefore, it is necessary to provide a gas filtering device for a production workshop to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a gas filtering device for a production workshop to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas filtering device for use in a production workshop, comprising a filter cartridge, an air inlet pipe is fixedly arranged on the periphery of the filter cartridge, an air outlet pipe is arranged on the top of the filter cartridge, a discharge port is arranged on the bottom of the filter cartridge, a primary filter plate is arranged in the filter cartridge, a medium-efficiency filter plate and a high-efficiency filter plate are arranged in sequence above the primary filter plate; a fixed tube is arranged at the bottom of the primary filter plate, a cleaning bristle is arranged in an array around the fixed tube, a driving assembly is arranged below the center of the fixed tube, and when the driving assembly rotates, the driving assembly drives the fixed tube to rotate.

[0008] As a further solution of the present invention: the driving assembly includes an impeller; a fixed cover is arranged on the periphery of the impeller, a support plate is fixedly arranged on the bottom of the fixed cover, the two ends of the support plate away from the fixed cover are fixedly connected to the inner wall of the filter cartridge, a telescopic column is fixedly arranged at the top center of the impeller, a ring is fixedly arranged on one end of the telescopic column away from the impeller, and the ring is sleeved on the central periphery of the fixed tube.

[0009] As a further solution of the present invention: a connecting shaft is fixedly provided at the center of one end of the fixed tube, a gear is fixedly provided at one end of the connecting shaft away from the fixed tube, a mounting groove is provided in the side wall of the filter cartridge, a disc is provided in the mounting groove, and a first tooth groove meshing with the gear transmission is provided on the top of the disc.

[0010] As a further solution of the present invention: the periphery of the disc is provided with notches, and the notches are arranged in a plurality of groups in a circular array along the center of the disc, a vertical plate slidingly adapted to the notches is fixedly provided in the mounting groove, and the bottom of the disc is elastically connected to the filter cartridge.

[0011] As a further solution of the present invention: a sealing plate is provided on the top side wall of the disc close to the fixed tube, the sealing plate is rotatably connected to the connecting shaft, and the top of the sealing plate is slidably fitted with the bottom of the primary filter plate.

[0012] As a further solution of the present invention: the sealing plate includes an outer plate and an inner plate; the bottom of the outer plate is slidably fitted with the top of the disc, the top of the outer plate is provided with a receiving groove, the inner plate is slidably arranged in the receiving groove, and a spring is provided between the bottom of the inner plate and the receiving groove, the top of the inner plate is slidably fitted with the bottom of the primary filter plate, and the outer plate is rotatably connected to the connecting shaft.

[0013] As a further solution of the present invention: a rotating shaft is rotatably connected inside the fixed tube, an opening is provided at one end of the fixed tube away from the gear, blades are provided on the periphery of one end of the rotating shaft close to the opening, multiple groups of the blades are provided in a circular array along the center of the rotating shaft, and strip grooves are provided on the side walls of the fixed tube.

[0014] As a further solution of the present invention: teeth are fixedly provided at one end of the rotating shaft away from the gear, a ring is fixedly connected to the top of the disc, an annular groove is provided on the side of the ring close to the rotating shaft, the teeth are provided in the annular groove, and a second tooth groove meshing with the teeth is provided at the bottom of the annular groove.

[0015] As a further solution of the present invention: an arc plate is slidably fitted in the fixed tube, a positioning rod is symmetrically fixedly arranged along the center at one end of the arc plate close to the teeth, and the end of the positioning rod away from the arc plate is fixedly connected to the blocking plate.

[0016] As a further solution of the present invention: a semi-cylinder is fixedly provided on the bottom of the inner wall of the arc-shaped plate, and an elastic plate is fixedly provided on the periphery of the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: during use, when the fixed tube rotates, the fixed tube synchronously drives the gear to revolve around the impeller as the center, and at the same time realizes the effect of the gear rotating under the action of the first tooth groove, and the rotation of the gear drives the fixed tube to rotate through the connecting shaft, and the rotation of the fixed tube causes the cleaning hairs arranged in an array thereon to rotate, thereby realizing that the fixed tube rotates while revolving around the impeller as the center, thereby improving the efficiency of cleaning the primary filter plate, and the rotating cleaning hairs can wrap up the particulate impurities in the filter holes of the primary filter plate, and through the elastic connection between the disc and the filter cylinder, the disc is always pushed upward, and then acts on the gear, so that the fixed tube is always pushed toward the primary filter plate, so that the cleaning hairs are closely fitted to the primary filter plate, avoiding the possible wear of the cleaning hairs during long-term use, resulting in the cleaning hairs no longer fitting with the bottom of the primary filter plate after running for a period of time, thereby affecting the cleaning effect of the primary filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the primary filter plate in the present invention.

[0020] Figure 3 It is a schematic structural diagram of a cutaway view of the middle part of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the blocking plate in the present invention.

[0022] Figure 5 It is a schematic structural diagram of the annular groove and the first tooth groove in the present invention.

[0023] Figure 6 For the present invention Figure 3 Schematic diagram of the structure at A in the middle.

[0024] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at C in the middle.

[0025] Figure 8 It is a schematic diagram of the structure of the fixed tube in the present invention.

[0026] Fig. 9 For the present invention Figure 3 Schematic diagram of the structure at B in the figure.

[0027] Fig.10 It is a schematic diagram of the structure of the semi-cylinder in the present invention.

[0028] In the figure: 1, filter cartridge; 2, air inlet pipe; 3, air outlet pipe; 4, primary filter plate; 5, cleaning bristles; 6, support plate; 7, impeller; 71, fixed cover; 72, telescopic column; 8, collar; 9, notch; 10, disc; 11, ring; 12, blocking plate; 13, annular groove; 14, first tooth groove; 15, rotating shaft; 16, elastic plate; 17, semi-cylinder; 18, arc plate; 19, strip groove; 20, fixed tube; 21, gear; 22, teeth; 23, positioning rod; 24, blade. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 10 In an embodiment of the present invention, a gas filtering device for a production workshop comprises a filter cartridge 1, an air inlet pipe 2 is fixedly arranged on the periphery of the filter cartridge 1, an air outlet pipe 3 is arranged on the top of the filter cartridge 1, a discharge port is arranged on the bottom of the filter cartridge 1, a primary filter plate 4 is arranged in the filter cartridge 1, a medium-efficiency filter plate and a high-efficiency filter plate are arranged in sequence above the primary filter plate 4, and the primary filter plate 4, the medium-efficiency filter plate and the high-efficiency filter plate are all fixedly connected to the inner wall of the filter cartridge 1, a fixed tube 20 is arranged at the bottom of the primary filter plate 4, a cleaning hair 5 is arranged on the peripheral array of the fixed tube 20, and a driving component is arranged below the center of the fixed tube 20, when the driving component rotates, the driving component drives the fixed tube 20 to rotate, and when the fixed tube 20 rotates, the bottom of the primary filter plate 4 is cleaned by the cleaning hair 5, thereby avoiding the bottom of the primary filter plate 4 being blocked by impurities after long-term use, thereby increasing the wind resistance and affecting the efficiency of the entire gas filtering device.

[0030] It should be noted that the air inlet pipe 2 is arranged at the bottom end of one side of the outer periphery of the filter cartridge 1 and is fixedly connected to the suction pipe in the plastic box production workshop, so that when the suction pipe is started to inhale the air in the production workshop, the air can be transported to the filter cartridge 1 through the air inlet pipe 2 for gas filtration treatment. The primary filter plate 4 is arranged in the filter cartridge 1 above the connection between the filter cartridge 1 and the air inlet pipe 2, so that the gas inhaled in the air inlet pipe 2 will pass through the primary filter plate 4, the medium efficiency filter plate, and the high efficiency filter plate in turn, thereby achieving the effect of filtering the gas in the production workshop. The primary filter plate 4, the medium efficiency filter plate, the high efficiency filter plate and the suction pipe are all common structures in the prior art for gas transportation and gas filtration in the production workshop. The detailed working principle and detailed related structures will not be described in detail here, and the gas filtered by the primary filter plate 4, the medium efficiency filter plate and the high efficiency filter plate is discharged through the air outlet pipe 3.

[0031] See also Figure 2-Figure 7Preferably, the driving assembly includes an impeller 7; a fixed cover 71 is arranged on the periphery of the impeller 7, a support plate 6 is fixedly arranged on the bottom of the fixed cover 71, and the two ends of the support plate 6 away from the fixed cover 71 are fixedly connected to the inner wall of the filter cartridge 1, a telescopic column 72 is fixedly arranged on the top center of the impeller 7, and a collar 8 is fixedly arranged on the end of the telescopic column 72 away from the impeller 7, and the collar 8 is sleeved on the central periphery of the fixed pipe 20. When actually used, the impeller 7 is arranged in the center of the filter cartridge 1, and the central axis of the impeller 7 corresponds to the central axis of the filter cartridge 1. The impeller 7 is also arranged on the air inlet pipe 2 The sleeve ring 8 and the fixed pipe 20 are rotatably connected above the air inlet pipe 2; when the air inlet pipe 2 transports gas into the filter cartridge 1, the gas moves from the bottom to the top in the filter cartridge 1, so that the impeller 7 rotates under the action of the gas moving upward. The rotation of the impeller 7 causes the fixed pipe 20 to rotate through the cooperation of the telescopic column 72 and the sleeve ring 8. The rotation of the fixed pipe 20 cleans the bottom of the primary filter plate 4 through the cleaning hair 5, thereby avoiding clogging of the bottom of the primary filter plate 4 and affecting the gas filtration efficiency, and the impurities and other particles cleaned up will move downward and fall at the discharge port.

[0032] Furthermore, a connecting shaft is fixedly provided at the center of one end of the fixed tube 20, and a gear 21 is fixedly provided at one end of the connecting shaft away from the fixed tube 20. A mounting groove is provided in the side wall of the filter cartridge 1, and a disc 10 is provided in the mounting groove. A first tooth groove 14 which is transmission-engaged with the gear 21 is provided on the top of the disc 10. In actual use, an annular structure is provided in the mounting groove inside the filter cartridge 1, and the gear 21 is in the mounting groove and meshes with the first tooth groove 14. In this way, when the fixed tube 20 rotates, the fixed tube 20 synchronously drives the gear 21 to revolve around the impeller 7 as the center, and at the same time, the gear 21 achieves an effect of self-rotation under the action of the first tooth groove 14. The rotation of the gear 21 drives the fixed tube 20 to rotate through the connecting shaft, and the rotation of the fixed tube 20 causes the cleaning hairs 5 arranged in an array thereon to rotate, thereby achieving self-rotation while the fixed tube 20 revolves around the impeller 7 as the center, thereby improving the efficiency of cleaning the primary filter plate 4, and the particle impurities in the filter holes on the primary filter plate 4 can be wrapped out by the rotating cleaning hairs 5.

[0033] In order to ensure that the disc 10 maintains stability when the gear 21 rotates and does not rotate with the gear 21, preferably, a notch 9 is provided on the periphery of the disc 10, and a plurality of notches 9 are provided in a circular array along the center of the disc 10. A vertical plate that is slidably matched with the notch 9 is fixedly provided in the installation groove, and the bottom of the disc 10 and the filter cartridge 1 are elastically connected by a spring. In actual use, the vertical plate and the notch 9 are slidably matched, so that the disc 10 can only move vertically in the installation groove, thereby preventing the disc 10 from rotating with the gear 21. The problem that the gear 21 cannot rotate due to rotation is solved. The elastic connection between the disc 10 and the filter cartridge 1 ensures that the disc 10 is always pushed upward, which in turn acts on the gear 21. The purpose is to ensure that the fixed tube 20 is always pushed toward the primary filter plate 4, so that the cleaning bristles 5 can fit tightly with the primary filter plate 4, avoiding possible wear of the cleaning bristles 5 during long-term use, which may cause the cleaning bristles 5 to no longer fit with the bottom of the primary filter plate 4 after running for a period of time, thereby affecting the cleaning effect of the primary filter plate 4.

[0034] See also Figure 4 , Figure 6 Preferably, a sealing plate 12 is provided on the top side wall of the disc 10 near the fixed tube 20. The sealing plate 12 is rotatably connected to the connecting shaft, and the top of the sealing plate 12 is slidably fitted with the bottom of the primary filter plate 4. When in use, the sealing plate 12 is provided to seal one side of the mounting groove, thereby preventing impurities in the gas in the filter cartridge 1 from falling into the first tooth groove 14 at the top of the disc 10, thereby causing the gear 21 and the first tooth groove 14 to be stuck.

[0035] The blocking plate 12 includes an outer plate and an inner plate; the bottom of the outer plate is slidably fitted with the top of the disc 10, a receiving groove is provided on the top of the outer plate, the inner plate is slidably arranged in the receiving groove, and a spring is provided between the bottom of the inner plate and the receiving groove, the top of the inner plate is slidably fitted with the bottom of the primary filter plate 4, and the outer plate is rotatably connected to the connecting shaft. When used in this way, when the cleaning hair 5 is worn, the disc 10, under the action of the corresponding spring, pushes the fixed tube 20 to move closer to the primary filter plate 4, so that the cleaning hair 5 fits with the bottom of the primary filter plate 4 again, and During this movement, since the outer plate is rotationally connected to the connecting shaft, the movement of the fixed tube 20 will synchronously drive the outer plate to move, thereby causing the inner plate to move and shrink into the accommodating groove, thereby not affecting the movement of the fixed tube 20; of course, the outer plate can also be set on the outside of the installation groove, that is, the outer plate and the inner wall of the filter cylinder 1 are slidably fitted. In this state, the bottom height of the outer plate is lower than the bottom of the installation groove. In this way, after the fixed tube 20 moves upward, the outer plate can also block one side of the installation groove, thereby preventing external impurities and other particulate matter from entering the installation groove.

[0036] See also Figure 6-Figure 10Preferably, a rotating shaft 15 is rotatably connected inside the fixed tube 20, an opening is provided at one end of the fixed tube 20 away from the gear 21, blades 24 are provided on the periphery of one end of the rotating shaft 15 close to the opening, multiple groups of blades 24 are provided in a circular array along the center of the rotating shaft 15, and a side wall of the fixed tube 20 is provided with a strip groove 19, and multiple groups of strip grooves 19 are provided in a circular array along the center of the fixed tube 20. It should be noted that: the central axis of the rotating shaft 15 corresponds to the central axis of the fixed tube 20, the strip groove 19 runs through the side wall of the fixed tube 20, and the strip groove 19 is provided between two adjacent groups of cleaning bristles 5.

[0037] In actual use, when the air inlet pipe 2 conveys gas into the filter cartridge 1 for gas filtering, the impeller 7 rotates under the action of the gas, and the fixed pipe 20 is rotated through the telescopic column 72 and the collar 8, so that the cleaning work on the bottom of the primary filter plate 4 is completed through the cleaning hair 5. During the rotation of the fixed pipe 20, the rotating shaft 15 also rotates. The rotation of the rotating shaft 15 drives the blades 24 to rotate. The rotation of the blades 24 achieves the purpose of exhausting air from the inside of the fixed pipe 20, so that the gas in the fixed pipe 20 is transported and discharged to the opening, thereby absorbing external air through the strip grooves 19. Under the impact of the airflow, impurities and other particulates that may be attached to the cleaning hair 5 will be sucked into the fixed pipe 20, and then discharged in the direction of the opening of the fixed pipe 20 under the action of the blades 24, and finally fall downward at the discharge port. A simple self-cleaning effect of the cleaning hair 5 is achieved through the arrangement of the strip grooves 19 and the blades 24.

[0038] Further, preferably, the end of the rotating shaft 15 away from the gear 21 is fixedly provided with teeth 22, the top of the disc 10 is fixedly connected with a ring 11, and the side of the ring 11 close to the rotating shaft 15 is provided with an annular groove 13, the teeth 22 are arranged in the annular groove 13, and the bottom of the annular groove 13 is provided with a second tooth groove meshing with the teeth 22. In actual use, the end of the rotating shaft 15 away from the gear 21 rotates through the side wall of the blocking plate 12, and the top height of the ring 11 is slightly higher than the top height of the fixed tube 20, and does not affect the upward movement of the fixed tube 20. In the initial state, the teeth 22 are meshed with the second tooth grooves. When the fixed tube 20 rotates around the impeller 7, the shaft 15 revolves around the impeller 7 with the fixed tube 20, so that the teeth 22 rotate in the annular groove 13. Through the setting of the second tooth grooves, the teeth 22 can rotate while revolving around the impeller 7. The rotation of the shaft 15 drives the blades 24 to rotate. At this time, the rotation of the blades 24 allows the gas in the fixed tube 20 to be discharged to the opening of the fixed tube 20, thereby generating negative pressure in the fixed tube 20, and then sucking in external gas through the strip grooves 19.

[0039] Furthermore, preferably, an arc plate 18 is slidably fitted in the fixed tube 20, and a positioning rod 23 is symmetrically fixedly arranged along the center at one end of the arc plate 18 close to the teeth 22, and the end of the positioning rod 23 away from the arc plate 18 is fixedly connected to the blocking plate 12. The arc plate 18 is a two-thirds circular structure, and under the action of the positioning rod 23, the relative position of the arc plate 18 is in a fixed state, that is, under the action of the arc plate 18, only the strip groove 19 close to the primary filter plate 4 under the action of the rotation of the fixed tube 20 can make the fixed tube 20 connected with the outside, thereby further increasing the adsorption force of the strip groove 19 connected to the fixed tube 20, thereby better sucking the particles such as impurities on the cleaning hair 5 and even the primary filter plate 4 into the fixed tube 20.

[0040] See also Fig.10 Preferably, a semi-cylinder 17 is fixedly arranged at the bottom of the inner wall of the arc-shaped plate 18, and an elastic plate 16 is fixedly arranged on the periphery of the rotating shaft 15. A plurality of elastic plates 16 are arranged in a circular array along the center of the rotating shaft 15, and then a plurality of elastic plates 16 are arranged in a horizontal array on the rotating shaft 15. The length of the semi-cylinder 17 is greater than the horizontal length of the plurality of elastic plates 16 on the rotating shaft 15. In actual use, when the rotating shaft 15 rotates, the rotating shaft 15 drives the elastic plate 16 to rotate, and the rotation of the elastic plate 16 will intermittently rotate with the semi-cylinder 17 is matched, when the elastic plate 16 is matched with the semi-cylinder 17, the elastic plate 16 will bend and deform, and when the elastic plate 16 is separated from the semi-cylinder 17, the elastic plate 16 is elastically reset, and then the arc plate 18 is knocked, so that the arc plate 18 vibrates, and since the arc plate 18 is in contact with the inner wall of the fixed tube 20, the vibration will be transmitted to the fixed tube 20, so that the impurities on the cleaning hair 5 can be shaken off better, so that the cleaning efficiency of the cleaning hair 5 on the primary filter plate 4 is increased, and its service life is extended.

Claims

1. A gas filtering device for a production workshop, comprising a filter cartridge, an air inlet pipe is fixedly arranged on the periphery of the filter cartridge, an air outlet pipe is arranged on the top of the filter cartridge, a discharge port is arranged on the bottom of the filter cartridge, a primary filter plate is arranged in the filter cartridge, and a medium-efficiency filter plate and a high-efficiency filter plate are arranged above the primary filter plate in sequence; characterized in that: A fixed tube is arranged at the bottom of the primary filter plate, a cleaning bristle is arranged in an outer array of the fixed tube, and a driving assembly is arranged below the center of the fixed tube. When the driving assembly rotates, the driving assembly drives the fixed tube to rotate.

2. A gas filtering device for a production workshop according to claim 1, characterized in that: The driving assembly includes an impeller; a fixed cover is arranged on the periphery of the impeller, a support plate is fixedly arranged on the bottom of the fixed cover, the two ends of the support plate away from the fixed cover are fixedly connected to the inner wall of the filter cartridge, a telescopic column is fixedly arranged at the top center of the impeller, a ring is fixedly arranged on one end of the telescopic column away from the impeller, and the ring is sleeved on the central periphery of the fixed tube.

3. A gas filtering device for a production workshop according to claim 2, characterized in that: A connecting shaft is fixedly arranged at the center of one end of the fixed tube, a gear is fixedly arranged at one end of the connecting shaft away from the fixed tube, a mounting groove is arranged in the side wall of the filter cylinder, a disc is arranged in the mounting groove, and a first tooth groove meshing with the gear transmission is arranged on the top of the disc.

4. A gas filtering device for a production workshop according to claim 3, characterized in that: The periphery of the disc is provided with notches, and the notches are arranged in a plurality of groups in a circular array along the center of the disc. A vertical plate slidingly adapted to the notches is fixedly arranged in the mounting groove, and the bottom of the disc is elastically connected to the filter cartridge.

5. The gas filtering equipment for a production workshop according to claim 3, characterized in that: A blocking plate is arranged on the top side wall of the disc close to the fixed tube. The blocking plate is rotatably connected to the connecting shaft, and the top of the blocking plate is slidably fitted with the bottom of the primary filter plate.

6. A gas filtering device for a production workshop according to claim 5, characterized in that: The blocking plate includes an outer plate and an inner plate; the bottom of the outer plate is slidably fitted with the top of the disc, the top of the outer plate is provided with a receiving groove, the inner plate is slidably arranged in the receiving groove, and a spring is provided between the bottom of the inner plate and the receiving groove, the top of the inner plate is slidably fitted with the bottom of the primary filter plate, and the outer plate is rotatably connected to the connecting shaft.

7. The gas filtering equipment for a production workshop according to claim 1, characterized in that: A rotating shaft is rotatably connected inside the fixed tube, an opening is provided at one end of the fixed tube away from the gear, blades are provided on the periphery of one end of the rotating shaft close to the opening, multiple groups of blades are provided in a circular array along the center of the rotating shaft, and strip grooves are provided on the side wall of the fixed tube.

8. The gas filtering equipment for use in a production workshop according to claim 7, characterized in that: The end of the rotating shaft away from the gear is fixedly provided with teeth, the top of the disc is fixedly connected with a ring, the side of the ring close to the rotating shaft is provided with an annular groove, the teeth are arranged in the annular groove, and the bottom of the annular groove is provided with a second tooth groove meshing with the teeth.

9. The gas filtering equipment for a production workshop according to claim 7, characterized in that: An arc plate is slidably fitted in the fixed tube, a positioning rod is symmetrically fixedly arranged along the center at one end of the arc plate close to the teeth, and one end of the positioning rod away from the arc plate is fixedly connected to the blocking plate.

10. The gas filtering equipment for use in a production workshop according to claim 9, characterized in that: A semi-cylinder is fixedly arranged at the bottom of the inner wall of the arc-shaped plate, and an elastic plate is fixedly arranged at the periphery of the rotating shaft.

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