CN219722310U - Filtering mechanism of ventilating duct - Google Patents

Abstract

The utility model relates to the technical field of ventilation duct filtration, and in particular to a ventilation duct filter mechanism, which can make the disassembly and assembly of cloth bags or filter cloths more convenient, effectively improve work efficiency, and improve the convenience of use; it includes a ventilation duct, and also It includes a disassembly and assembly mechanism and a clamping mechanism. The disassembly and assembly mechanism includes an outer frame. The outer frame is provided with two combination leaves. The outer frame is mounted on the ventilation duct through a hinged rotating cover. The left end of the outer frame is connected with a fixed slot. A filter is slidably placed in the slot. There are two sets of fixed plates connected to the top of the ventilation duct. There are two sets of guide rods connected front and back symmetrically between the two sets of fixed plates. Both sets of guide sleeves are fixed with upper hinge seats. There are two sets of lower hinge seats connected front and back symmetrically on the left side of the frame. Two sets of upper hinge seats are respectively hinged with connecting strips. The bottom ends of the two sets of connecting strips are respectively hinged with the two sets of lower hinge seats. The clamping mechanism is used to limit Opening of outer frame.

Description

A filtering mechanism for ventilation ducts

Technical field

The utility model relates to the technical field of ventilation duct filtration, and in particular to a filtering mechanism for ventilation ducts.

Background technique

Ventilation ducts are metal or composite pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are a type of municipal infrastructure used to circulate air and reduce the concentration of harmful gases.

Ventilation ducts are used when replacing indoor air. In the prior art, ventilation ducts are equipped with filtering devices to prevent external debris and dust from entering the room along the ventilation ducts during ventilation.

Currently, most commonly used filtering devices use cloth bags or filter cloths for filtration. With long-term use, a lot of debris or dust will accumulate in the cloth bags or filter cloths, so they need to be cleaned and replaced regularly to ensure that Good filtration effect, but most of the existing filtration devices are installed on the ventilation ducts through bolted connections. In actual use, the bag or filter cloth is inconvenient to disassemble and assemble, which affects work efficiency and is less convenient to use. .

Utility model content

In order to solve the above technical problems, the utility model provides a filter mechanism for a ventilation duct that can make the disassembly and assembly of cloth bags or filter cloths more convenient, effectively improve work efficiency, and improve the convenience of use.

Technical solutions

In order to achieve the above purpose, the present utility model provides the following technical solution: it includes a ventilation duct, and also includes a disassembly and assembly mechanism and a clamping mechanism. The disassembly and assembly mechanism includes an outer frame. The outer frame is provided with two combination leaves. The outer frame passes through the hinges. The rotating cover is installed on the ventilation duct. A fixed slot is connected to the left end of the outer frame. A filter is slidably placed in the fixed slot. Two sets of fixed plates are connected to the top of the ventilation duct. There are two symmetrical connections between the two sets of fixed plates. The two sets of guide rods are equipped with guide sleeves on sliding sleeves. The two sets of guide rods are equipped with springs. The right ends of the two sets of springs are connected to the two sets of guide sleeves respectively. The left ends of the two sets of springs are connected to the left A set of fixed plates are connected, and the two sets of guide sleeves are fixedly equipped with upper hinge seats. There are two sets of lower hinge seats symmetrically connected to the left side of the outer frame. The two sets of upper hinge seats are hinged with connecting strips respectively. The two sets of The bottom end of the connecting strip is hinged with the two sets of lower hinge seats respectively, and the clamping mechanism is used to limit the opening of the outer frame.

Preferably, the clamping mechanism includes a fixed box, which is installed at the top of the ventilation duct. There are two sets of sliding holes on the top of the fixed box. Push rods are slidably installed in both sets of sliding holes. The tops of the two sets of push rods are connected with Pressure caps, both sets of push rods are equipped with return springs, and the top ends of the two sets of return springs are connected to the two sets of pressure caps respectively, the bottom ends of the two sets of return springs are connected to the fixed boxes, and the right ends of the two sets of push rods are connected to lower clips The upper chuck is connected to the outer frame, and the lower chuck and the upper chuck cooperate with each other.

Preferably, it also includes a handle, which is fixedly installed on the top of the right end of the outer frame.

Preferably, an anti-slip grip is fixed on the circumferential outer wall of the handle.

Preferably, a sliding sleeve is provided in both sets of sliding holes at the top of the fixed box.

Preferably, two sliding sleeves are provided on the circumferential inner walls of the two sets of guide sleeves.

Compared with the existing technology, the beneficial effects of this utility model are: first, when in use, the filter element can be a filter cloth with a frame, or a cloth bag with a frame. The filter element is usually installed on the outer frame through a fixed slot. , the outer frame is in a closed state. At this time, the guide sleeve is located at the left position of the guide rod. The outer frame exerts a leftward thrust on the guide sleeve through the connecting strip, so that the spring is in a compressed state. When it needs to be cleaned or replaced, operate the card After the installation mechanism releases the restriction on the outer frame, the guide sleeve will move to the right along the guide rod under the action of the spring. The guide sleeve pushes the outer frame to rotate to a certain angle through the connecting strip, pushing the outer frame open. When the outer frame opens Finally, slide and remove the filter element from the fixed slot for cleaning or replacement. After replacement, reinstall the filter element and cover the outer frame, which makes the disassembly and assembly of the bag or filter cloth more convenient and effective. Improve work efficiency and improve convenience of use.

Description of the drawings

Figure 1 is a schematic diagram of the front side of the utility model;

Figure 2 is a schematic structural diagram of the front side of the utility model;

Figure 3 is a schematic cross-sectional structural diagram of the right side of the installation of the fixed plate in the utility model;

Figure 4 is a schematic structural diagram of the upper side of the filter element and the fixed slot in the utility model;

Figure 5 is a schematic diagram of the partially enlarged structure of position A of the present utility model;

Markings in the drawings: 1. Ventilation duct; 2. Outer frame; 3. Hinge; 4. Fixed slot; 5. Filter; 6. Fixed plate; 7. Guide rod; 8. Guide sleeve; 9. Spring; 10. Upper hinge seat; 11. Lower hinge seat; 12. Connecting strip; 13. Fixing box; 14. Push rod; 15. Pressure cap; 16. Return spring; 17. Lower chuck; 18. Upper chuck; 19. Handle; 20. Anti-slip handle; 21. Sliding cover one; 22. Sliding cover two.

Detailed ways

Example

Please refer to Figures 1-4. The filter mechanism of a ventilation duct of the present invention includes a ventilation duct 1. An outer frame 2 is provided with two combination leaves 3. The outer frame 2 is mounted on the ventilation duct 1 through a hinge 3 rotating cover. , the left end of the outer frame 2 is connected with a fixed slot 4, a filter 5 is slidably placed in the fixed slot 4, two sets of fixed plates 6 are connected to the top of the ventilation duct 1, and there are two symmetrical connections between the two sets of fixed plates 6. The two sets of guide rods 7 are provided with guide sleeves 8 in sliding sleeves. The two sets of guide rods 7 are equipped with springs 9, and the right ends of the two sets of springs 9 are respectively connected to the two sets of guide sleeves 8. The left ends of the springs 9 are connected to a set of fixed plates 6 on the left. The two sets of guide sleeves 8 are fixed with upper hinge seats 10. The left side of the outer frame 2 is symmetrically connected with two sets of lower hinge seats 11. The upper hinge base 10 is respectively hinged with connecting strips 12, and the bottom ends of the two sets of connecting strips 12 are respectively hinged with the two sets of lower hinge seats 11; first, when in use, the filter element 5 can be a filter cloth with a frame, or it can be It is a cloth bag with a frame. Normally, the filter element 5 is installed on the outer frame 2 through the fixed slot 4. The outer frame 2 is in a closed state. At this time, the guide sleeve 8 is located at the left position of the guide rod 7. The outer frame 2 passes through the connecting strip. 12 Apply a push force to the left on the guide sleeve 8 so that the spring 9 is in a compressed state. When cleaning or replacement is required, after the restriction on the outer frame 2 is released by operating the clamping mechanism, the guide sleeve 8 will move along the direction of the guide sleeve 8 under the action of the spring 9. Move the guide rod 7 to the right, and the guide sleeve 8 pushes the outer frame 2 to rotate to a certain angle through the connecting strip 12, pushing the outer frame 2 open. When the outer frame 2 is opened, slide and remove the filter from the fixed slot 4. Clean or replace the filter element 5. After replacement, reinstall the filter element 5 and cover the outer frame 2, thereby making it easier to disassemble and assemble the bag or filter cloth, effectively improving work efficiency and improving convenience of use.

Please refer to Figures 1, 2 and 5. The clamping mechanism includes a fixing box 13. The fixing box 13 is installed at the top of the ventilation duct 1. There are two sets of sliding holes on the top of the fixing box 13, and pushers are slidably installed in the two sets of sliding holes. Rod 14, the tops of the two sets of push rods 14 are connected with pressure caps 15, the two sets of push rods 14 are equipped with return springs 16, and the tops of the two sets of return springs 16 are respectively connected to the two sets of pressure caps 15, and the two sets of return springs 16 The bottom ends are connected to the fixed box 13, the right ends of the two sets of push rods 14 are connected to the lower chuck 17, the outer frame 2 is connected to the upper chuck 18, and the lower chuck 17 and the upper chuck 18 cooperate with each other; in the filter When cleaning or replacing parts 5, when it is necessary to open the outer frame 2, push the push rod 14 downward through the pressure cap 15, so that the return spring 16 is compressed, and the push rod 14 drives the lower chuck 17 to move downward, causing the lower chuck 17 to move downward. 17 is detached from the upper chuck 18, and then the outer frame 2 can open by itself under the action of the spring 9. When it is necessary to close the outer frame 2, rotate the outer frame 2 until it fits the ventilation duct 1, and the upper chuck 18 faces through the slope. Squeeze the lower chuck 17 downward, so that the lower chuck 17 drives the push rod 14 to move downward, and the return spring 16 is compressed. When the slopes on the upper chuck 18 and the lower chuck 17 are staggered, the lower chuck 17 moves on the return spring. 16 moves upward under the action of the lower chuck 17 and the upper chuck 18 to engage, thereby covering the outer frame 2. This method can make the opening and closing of the outer frame 2 more convenient and further improve work efficiency.

Please refer to Figure 2, which also includes a handle 19, which is fixedly installed on the top of the right end of the outer frame 2; by providing the handle 19, it can be more convenient when the outer frame 2 is closed.

Referring to Figure 2, an anti-slip handle 20 is fixedly mounted on the circumferential outer wall of the handle 19; by providing the anti-slip handle 20, hand slipping can be effectively prevented when the outer frame 2 is closed by holding the handle 19.

Please refer to Figure 5. The two sets of sliding holes at the top of the fixed box 13 are provided with sliding sleeves 21; by providing the sliding sleeves 21, the push rod 14 can slide on the fixed box 13 more smoothly.

Please refer to Figure 3. The two sets of guide sleeves 8 are provided with sliding sleeves 22 on the circumferential inner walls thereof; by providing the second sliding sleeves 22, the sliding of the guide sleeves 8 on the guide rod 7 can be made smoother.

The utility model provides a filter mechanism for ventilation ducts. When it is first used, the filter element 5 can be a filter cloth with a frame, or a cloth bag with a frame. The filter element 5 is usually installed outside through the fixed slot 4. On the frame 2, the outer frame 2 is in a closed state. At this time, the guide sleeve 8 is located at the left position of the guide rod 7. The outer frame 2 exerts a leftward thrust on the guide sleeve 8 through the connecting strip 12, so that the spring 9 is in a compressed state. When it is necessary to clean or replace, push the push rod 14 downward through the pressure cap 15, so that the return spring 16 is compressed, and the push rod 14 drives the lower chuck 17 to move downward, so that the lower chuck 17 and the upper chuck 18 are separated, and then The guide sleeve 8 will move to the right along the guide rod 7 under the action of the spring 9. The guide sleeve 8 pushes the outer frame 2 to rotate to a certain angle through the connecting strip 12, so that the outer frame 2 opens by itself. When the outer frame 2 is opened, , then slide and remove the filter element 5 from the fixed slot 4 for cleaning or replacement. After replacement, reinstall the filter element 5, then rotate the outer frame 2 until it fits the ventilation duct 1, and the upper chuck 18 faces through the slope. Squeeze the lower chuck 17 downward, so that the lower chuck 17 drives the push rod 14 to move downward, and the return spring 16 is compressed. When the slopes on the upper chuck 18 and the lower chuck 17 are staggered, the lower chuck 17 moves on the return spring. 16 moves upward, causing the lower chuck 17 and the upper chuck 18 to engage, thereby covering the outer frame 2.

The installation method, connection method or setting method of the ventilation duct filter mechanism of the present invention are all common mechanical methods, which can be implemented as long as the beneficial effects can be achieved; technicians in the industry only need to follow the accompanying instructions Just use the instruction manual to install and operate.

Claims (6)

1. A filtering mechanism for a ventilation duct, including a ventilation duct, characterized in that it also includes a disassembly and assembly mechanism and a clamping mechanism; Disassembly and assembly mechanism. The disassembly and assembly mechanism includes an outer frame. The outer frame is provided with two combination leaves. The outer frame is mounted on the ventilation duct through a hinged rotating cover. The left end of the outer frame is connected to a fixed card slot. The fixed card slot is slidably placed. There are filters, and two sets of fixed plates are connected to the top of the ventilation duct. There are two sets of guide rods symmetrically connected front and back between the two sets of fixed plates. Both sets of guide rods are slidingly provided with guide sleeves. Both sets of guide rods are equipped with guide sleeves. The set is equipped with springs, and the right ends of the two sets of springs are connected to the two sets of guide sleeves respectively. The left ends of the two sets of springs are connected to a set of fixed plates on the left. The upper hinge seats are fixed on the two sets of guide sleeves. The left end of the outer frame There are two sets of lower hinge seats that are symmetrically connected from side to side, two sets of upper hinge seats are respectively hinged with connecting strips, and the bottom ends of the two sets of connecting strips are hinged with the two sets of lower hinge seats respectively; The clamping mechanism is used to limit the opening of the outer frame. 2. A filtering mechanism for a ventilation duct according to claim 1, characterized in that the clamping mechanism includes a fixing box, the fixing box is installed at the top of the ventilation duct, and the top of the fixing box is provided with two sets of sliding holes, two sets of sliding holes. Push rods are slidably installed in the sliding holes. The tops of the two sets of push rods are connected with pressure caps. The two sets of push rods are equipped with return springs. The tops of the two sets of return springs are respectively connected to the two sets of pressure caps. The two sets of return springs The bottom ends are connected with the fixed box, the right ends of the two sets of push rods are connected with lower chucks, and the outer frame is connected with upper chucks, and the lower chucks and the upper chucks cooperate with each other. 3. A filtering mechanism for a ventilation duct according to claim 1, further comprising a handle fixedly mounted on the top of the right end of the outer frame. 4. A filtering mechanism for a ventilation duct according to claim 3, characterized in that an anti-slip handle is fixedly mounted on the circumferential outer wall of the handle. 5. A filtering mechanism for a ventilation duct according to claim 2, characterized in that a sliding sleeve is provided in both sets of sliding holes at the top of the fixed box. 6. A filtering mechanism for a ventilation duct according to claim 1, characterized in that two sliding sleeves are provided on the circumferential inner walls of the two sets of guide sleeves.