Roadway ventilation filtering device

Abstract

The utility model discloses a roadway ventilation filtering device which comprises a filtering pipe, flanges are arranged at the two ends of the filtering pipe, a supporting ring is fixedly arranged in the filtering pipe, a conical filtering net is arranged on one side of the supporting ring, the small end of the conical filtering net is of a closed structure and is provided with a transmission shaft in a rotating mode, and the large end of the other side of the conical filtering net is of an open structure. The utility model relates to the technical field of filtering equipment, the design of the conical filter screen increases the filtering area, air in a roadway can be filtered more effectively, the filtering efficiency is improved, meanwhile, the brush is attached to the outer wall of the conical filter screen in a sliding mode, and therefore the filtering efficiency is improved. The motor of the driving assembly drives the main gear, and the main gear drives the auxiliary gear and the main shaft to rotate, so that the transmission shaft rotates, the brush cleans the filter screen, the filter screen is prevented from being blocked, and the filtering performance of the filter screen is kept.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a tunnel ventilation filtration device. Background Technology

[0002] In tunnel working environments, ventilation and filtration devices play a crucial role in ensuring air quality, protecting worker health, and ensuring the normal operation of equipment. However, existing tunnel ventilation and filtration devices have several problems. Firstly, cleaning and maintaining the filters is difficult; filters are prone to clogging during use, requiring frequent replacements, increasing maintenance costs and downtime. Secondly, filter installation and positioning are not convenient, consuming significant time during inspection and maintenance, thus affecting efficiency. As the performance requirements for ventilation and filtration devices in tunnel operations continue to increase, there is an urgent need for a tunnel ventilation and filtration device that can effectively filter and is easy to clean and maintain. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a tunnel ventilation and filtration device that solves the problem of inconvenient cleaning and maintenance of existing devices.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a roadway ventilation and filtration device, comprising a filter pipe with flanges at both ends, a support ring fixedly installed inside the filter pipe, a conical filter screen on one side of the support ring, the small end of the conical filter screen being a closed structure and rotatably mounted with a drive shaft, and the large end on the other side being an open structure with an annular folded edge along the circumferential direction, the annular folded edge abutting against the side wall of the support ring, a brush detachably mounted on one end of the drive shaft, and the other end connected to a drive assembly, the brush slidingly fitting against the outer wall of the conical filter screen, a positioning ring slidably installed inside the filter pipe, a pressure ring fixedly mounted on the side wall of the positioning ring via a connecting rod, the pressure ring abutting against the annular folded edge, and the positioning ring being connected to the filter pipe via a positioning assembly.

[0005] Preferably, the drive assembly includes a shaft bracket fixedly installed on the lower inner wall of the filter tube, a main shaft rotatably mounted on the shaft bracket, a secondary gear mounted on one end of the main shaft, a flat plug mounted on the other end, a slot matching the flat plug on one end of the drive shaft, a motor mounted on the lower inner wall of the filter tube, and a main gear meshing with the secondary gear mounted on the drive end of the motor.

[0006] Preferably, the positioning component includes a pair of mounting grooves formed on the inner wall of the positioning ring, the bottom of the mounting grooves is provided with a sliding hole, a positioning pin is slidably disposed in the sliding hole, the inner wall of the filter tube is provided with a pin hole for the positioning pin to be inserted, one end of the positioning pin extends out of the mounting groove and is fitted with a pull plate, and a spring is provided between the pull plate and the bottom of the mounting groove and fitted on the outside of the positioning pin.

[0007] Preferably, the brush is fixedly provided with a connector at one end near the conical filter screen, the connector has a pair of insert rods on its side wall, one end of the drive shaft has a hole for inserting the insert rods, and the connector and the drive shaft are connected by fixing bolts.

[0008] Preferably, the lower wall of the filter tube is provided with a dust collection port located below the conical filter screen, and a dust collection box is detachably installed below the dust collection port by means of a butterfly bolt.

[0009] Beneficial effects

[0010] This utility model provides a tunnel ventilation and filtration device, which has the following beneficial effects:

[0011] The conical filter design increases the filtration area, enabling more effective filtration of air in the aisle and improving filtration efficiency. At the same time, the brush slides against the outer wall of the conical filter. The motor of the drive assembly drives the main gear, which in turn drives the secondary gear and the main shaft to rotate, thereby rotating the transmission shaft. This allows the brush to clean the filter, preventing clogging and maintaining the filter's filtration performance.

[0012] The dust collection port and dust collection box on the lower wall of the filter tube facilitate the collection of filtered dust and impurities. The dust collection box can be cleaned periodically. The detachable connection between the brush and the drive shaft makes it easy to replace the brush and ensure the cleaning effect. The positioning component design allows the positioning ring and pressure ring to be firmly installed inside the filter tube, and makes it easy to disassemble and install the filter screen, which is convenient for maintenance and replacement of the filter screen. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side sectional view of the positioning ring of this utility model.

[0015] Figure 3 This is a partially enlarged structural schematic diagram of the present invention.

[0016] In the diagram: 1. Filter tube; 2. Flange; 3. Support ring; 4. Conical filter screen; 5. Drive shaft; 6. Annular folded edge; 7. Brush; 8. Positioning ring; 9. Connecting rod; 10. Pressure ring; 11. Shaft bracket; 12. Main shaft; 13. Flat plug; 14. Secondary gear; 15. Motor; 16. Main gear; 17. Mounting groove; 18. Positioning pin; 19. Pull plate; 20. Spring; 21. Connector; 22. Insert rod; 23. Fixing bolt; 24. Ash discharge port; 25. Ash collection box. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-2 This utility model provides a technical solution: a tunnel ventilation and filtration device, including a filter pipe 1, flanges 2 at both ends of the filter pipe 1, a support ring 3 fixedly installed inside the filter pipe 1, a conical filter screen 4 on one side of the support ring 3, the small end of the conical filter screen 4 is a closed structure and a drive shaft 5 is rotatably mounted thereon, the large end on the other side is an open structure and an annular folded edge 6 is provided along the circumferential direction, the annular folded edge 6 abuts against the side wall of the support ring 3, a brush 7 is detachably mounted on one end of the drive shaft 5, and the other end is connected to a drive assembly, the brush 7 slides against the outer wall of the conical filter screen 4, a positioning ring 8 is slidably provided inside the filter pipe 1, a pressure ring 10 is fixedly mounted on the side wall of the positioning ring 8 through a connecting rod 9, the pressure ring 10 abuts against the annular folded edge 6, and the positioning ring 8 is connected to the filter pipe 1 through a positioning assembly.

[0019] By adopting the above technical solution, dusty air enters from one end of the filter tube 1, is filtered by the conical filter screen 4, and clean air is discharged from the other end of the filter tube 1. The positioning ring 8 is installed inside the filter tube 1 through the positioning component, and the pressure ring 10 abuts against the annular folded edge 6 to fix the conical filter screen 4. The brush 7 at one end of the drive shaft 5 is in contact with the outer wall of the conical filter screen 4, and the other end of the drive shaft 5 is connected to the drive component. The drive component drives the brush 7 to rotate to clean the filter screen and ensure the filtration effect.

[0020] In this embodiment, the drive assembly includes a shaft frame 11 fixedly installed on the lower inner wall of the filter tube 1. A main shaft 12 is rotatably mounted on the shaft frame 11. A secondary gear 14 is installed at one end of the main shaft 12, and a flat plug 13 is installed at the other end. One end of the drive shaft 5 is provided with a flat slot that matches the flat plug 13. A motor 15 is provided on the lower inner wall of the filter tube 1. A main gear 16 that meshes with the secondary gear 14 is installed at the drive end of the motor 15.

[0021] By adopting the above technical solution, the motor 15 starts and drives the main gear 16 to rotate. The main gear 16 drives the auxiliary gear 14 and the main shaft 12 to rotate. The flat plug 13 on the main shaft 12 is inserted into the flat slot of the transmission shaft 5, causing the transmission shaft 5 to rotate, thereby driving the brush 7 to rotate, cleaning the conical filter screen 4, preventing the filter screen from clogging, and improving the filtration efficiency and service life of the filtration device.

[0022] In this embodiment, the positioning component includes a pair of mounting grooves 17 formed on the inner wall of the positioning ring 8. The bottom of the mounting groove 17 is connected to a sliding hole, and a positioning pin 18 is slidably disposed in the sliding hole. The inner wall of the filter tube 1 is provided with a pin hole for the positioning pin 18 to be inserted. One end of the positioning pin 18 extends to the outside of the mounting groove 17 and is fitted with a pull plate 19. A spring 20 is provided between the pull plate 19 and the bottom of the mounting groove 17 and fitted on the outside of the positioning pin 18.

[0023] By adopting the above technical solution, when installing the positioning ring 8, pulling the pull plate 19 stretches the spring 20, and the positioning ring 8 slides into the filter tube 1 until the positioning pin 18 is aligned with the pin hole. Then, the pull plate 19 is released, and the positioning pin 18 is inserted into the pin hole on the inner wall of the filter tube 1 under the elastic force of the spring 20, thus fixing the positioning ring 8. At this time, the connecting rod 9 and the pressure ring 10 press the annular folded edge 6 of the conical filter screen 4 onto the support ring 3, thus completing the fixing of the conical filter screen 4. When removing the positioning ring 8, pulling the pull plate 19 pulls the positioning pin 18 out of the pin hole, and the positioning ring 8 can be removed from the filter tube 1. The positioning assembly ensures the stable installation of the positioning ring 8 and the filter screen, while facilitating the disassembly and installation of the positioning ring 8, making it easier to maintain and replace the filter screen, and improving the maintainability of the filtration device.

[0024] In this embodiment, the brush 7 is further configured such that a connector 21 is fixedly provided at one end near the conical filter screen 4, a pair of insertion rods 22 are provided on the side wall of the connector 21, and one end of the drive shaft 5 is provided with an insertion hole for the insertion rods 22 to be inserted. The connector 21 and the drive shaft 5 are connected by a fixing bolt 23.

[0025] By adopting the above technical solution, when installing the brush 7, the insertion rod 22 is inserted into the insertion hole of the drive shaft 5, and the connector 21 and the drive shaft 5 are fixed by the fixing bolt 23. When the brush 7 needs to be replaced, the fixing bolt 23 is loosened, the insertion rod 22 is pulled out, and a new brush 7 is replaced, ensuring the cleaning effect of the brush 7 on the conical filter screen 4 and improving the cleaning and maintenance efficiency of the filter device.

[0026] In this embodiment, the filter tube 1 is further configured to have a dust collection port 24 located on its lower wall below the conical filter screen, and a dust collection box 25 is detachably installed below the dust collection port 24 by means of a butterfly bolt.

[0027] By adopting the above technical solution, the dust collection port 24 and the dust collection box 25 are set up to facilitate the collection of filtered dust and impurities, keep the inside of the filter device clean, and the dust collection box 25 can be disassembled periodically by using the wing bolts to clean the dust and impurities inside the dust collection box 25.

[0028] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0029] Example: During installation, insert the conical filter screen 4 into the filter tube 1, so that the annular folded edge 6 abuts against the side wall of the support ring 3. Pull the pull plate 19, the spring 20 is stretched, and the positioning ring 8 slides into the filter tube 1 until the positioning pin 18 is aligned with the pin hole. Release the pull plate 19, and the positioning pin 18 is inserted into the pin hole on the inner wall of the filter tube 1 under the elastic force of the spring 20, fixing the positioning ring 8. At this time, the connecting rod 9 and the pressure ring 10 press the annular folded edge 6 of the conical filter screen 4 onto the support ring 3, completing the fixing of the conical filter screen 4. When installing the conical filter screen 4, it is necessary to ensure that the slot at the end of the drive shaft 5 on the conical filter screen 4 is connected to the slot plug 13 on the main shaft 12.

[0030] After installation, connect and fix the flanges 2 at both ends of the filter pipe 1 to the roadway ventilation duct, turn on the roadway ventilation system, and dusty air enters from one end of the filter pipe 1. After being filtered by the conical filter screen 4, clean air is discharged from the other end of the filter pipe 1. During the ventilation process, dust and impurities are intercepted by the conical filter screen 4, and some dust and impurities fall into the dust collection box 25 through the dust outlet 24.

[0031] When the conical filter screen 4 needs cleaning, the motor 15 is started. The motor 15 drives the main gear 16 to rotate. The main gear 16 drives the secondary gear 14 and the main shaft 12 to rotate. The main shaft 12 drives the transmission shaft 5 to rotate through the flat plug 13, so that the brush 7 cleans the conical filter screen 4. During the cleaning process, the brush 7 brushes off the dust and impurities on the surface of the conical filter screen 4. Some of the dust and impurities fall into the dust collection box 25 through the dust outlet 24.

[0032] Regularly check the accumulation of dust and impurities inside the dust collection box 25. When there is a large amount of dust and impurities inside the dust collection box 25, disassemble the dust collection box 25 using the wing bolts, clean the dust and impurities inside the dust collection box 25, and then reinstall the dust collection box 25. Regularly check the wear condition of the brush 7. When the brush 7 is severely worn, loosen the fixing bolt 23, pull out the insert 22, and replace it with a new brush 7.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel ventilation and filtration device, characterized in that, The filter includes a filter tube (1), with flanges (2) at both ends. A support ring (3) is fixed inside the filter tube (1). A conical filter screen (4) is provided on one side of the support ring (3). The small end of the conical filter screen (4) is a closed structure and is rotatably mounted with a drive shaft (5). The large end on the other side is an open structure and is provided with an annular folded edge (6) along the circumferential direction. The annular folded edge (6) abuts against the side wall of the support ring (3). A brush (7) is detachably mounted on one end of the drive shaft (5), and the other end is connected to a drive assembly. The brush (7) slides against the outer wall of the conical filter screen (4). A positioning ring (8) is slidably provided inside the filter tube (1). A pressure ring (10) is fixedly mounted on the side wall of the positioning ring (8) through a connecting rod (9). The pressure ring (10) abuts against the annular folded edge (6). The positioning ring (8) is connected to the filter tube (1) through a positioning assembly.

2. The tunnel ventilation and filtration device according to claim 1, characterized in that, The drive assembly includes a shaft bracket (11) fixedly installed on the lower inner wall of the filter tube (1), a main shaft (12) rotatably mounted on the shaft bracket (11), a secondary gear (14) mounted on one end of the main shaft (12), and a flat plug (13) mounted on the other end. One end of the drive shaft (5) is provided with a flat slot that matches the flat plug (13). A motor (15) is provided on the lower inner wall of the filter tube (1), and a main gear (16) that meshes with the secondary gear (14) is installed on the drive end of the motor (15).

3. The tunnel ventilation and filtration device according to claim 1, characterized in that, The positioning component includes a pair of mounting grooves (17) formed on the inner wall of the positioning ring (8). The bottom of the mounting groove (17) is connected to a sliding hole. A positioning pin (18) is slidably disposed in the sliding hole. The inner wall of the filter tube (1) is provided with a pin hole for the positioning pin (18) to be inserted. One end of the positioning pin (18) extends to the outside of the mounting groove (17) and is fitted with a pull plate (19). A spring (20) fitted on the outside of the positioning pin (18) is provided between the pull plate (19) and the bottom of the mounting groove (17).

4. The tunnel ventilation and filtration device according to claim 3, characterized in that, The brush (7) is fixedly provided with a connector (21) at one end near the conical filter (4). The connector (21) has a pair of insert rods (22) on its side wall. The drive shaft (5) has a hole for inserting the insert rods (22) at one end. The connector (21) and the drive shaft (5) are connected by a fixing bolt (23).

5. The tunnel ventilation and filtration device according to claim 1, characterized in that, The filter tube (1) has a dust collection port (24) on its lower wall and below the conical filter screen. A dust collection box (25) is detachably installed below the dust collection port (24) by means of a butterfly bolt.

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