Medium-efficiency bag type filter with quickly-detached filter bag

Abstract

The invention discloses a filter bag quick-release medium-efficiency bag filter which comprises a positioning frame mounted on the filter, a plurality of mounting grooves are formed in the positioning frame, filter bags are movably mounted in the mounting grooves, L-shaped positioning plates are rotatably mounted at two longer ends of the positioning frame, and the L-shaped positioning plates are in contact with the filter bags. Two L-shaped positioning plates are arranged on the positioning frame, first connecting blocks are mounted at the same ends of the two L-shaped positioning plates, the two first connecting blocks are rotatably mounted on the positioning frame, and driving shafts are inserted into the two first connecting blocks. By means of the mode, operation is easy, installation and replacement of each filter bag do not need to be achieved in the mode that a plurality of insertion rods and insertion grooves are connected in an inserted mode, the installation efficiency is higher, and the installation time of the filter screen is effectively saved.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and in particular to a quick-release medium-efficiency bag filter. Background Technology

[0002] A bag filter is an air filtration device commonly used in central air conditioning and other air supply systems to filter dust particles in the air, thus purifying the air and reducing odors. Compared to other filtration equipment, bag filters have advantages such as a large filtration area, large dust holding capacity, and large air volume.

[0003] Utility model CN217724894U discloses a quick-release medium-efficiency bag filter, belonging to the field of air purification technology. The filter has a positioning frame and a filter bag. The positioning frame has evenly spaced mounting slots inside for assembling the filter bag. A locking mechanism is provided between the positioning frame and the filter bag. The locking mechanism includes: a positioning plate, which is hinged and rotated by a shaft and a spring; a limit rod is fixed to the side wall of the positioning plate; and a fixing plate, installed on one side wall along the length of the positioning plate. In this utility model, the filter bag and the filter are not integrated, thus extending the filter's lifespan by replacing the filter bag after its service life expires, avoiding production cost waste. The locking mechanism allows for the disassembly of the filter bag and the positioning frame, enabling simultaneous locking of multiple filter bags and the removal and replacement of a single filter bag.

[0004] When the filter bag of the above-mentioned utility model is disassembled and replaced, it is necessary to repeatedly insert several limiting rods into the corresponding slots and insert the first and second rods into the corresponding slots to install and replace the filter bag. This method is complicated and there are gaps between the filter bag and the installation slot, resulting in poor filtration effect. Summary of the Invention

[0005] The purpose of this invention is to provide a quick-release medium-efficiency bag filter to solve the problems of complicated operation and poor filtration effect mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick-release medium-efficiency bag filter, comprising a positioning frame mounted on the filter, wherein the positioning frame has several mounting slots, in which filter bags are movably mounted; L-shaped positioning plates are rotatably mounted at both longer ends of the positioning frame, the L-shaped positioning plates contacting the filter bags; and a first connecting block is mounted on the same end of each of the two L-shaped positioning plates, the two first connecting blocks are rotatably mounted on the positioning frame, and a drive shaft is inserted into each of the two first connecting blocks; the bottom ends of the two drive shafts are respectively connected to a positive thread block and a negative thread block; a servo motor is mounted at the end of the positioning frame near the first connecting block, and a bidirectional lead screw is mounted at the output end of the servo motor; the positive thread block and the negative thread block are threadedly connected to the two ends of the bidirectional lead screw.

[0007] Preferably, the positioning frame has a plurality of positioning slots, which are connected to the corresponding mounting slots, and the top of each of the plurality of filter bags is fitted with a connecting frame, which is adapted to the positioning slot.

[0008] Preferably, the L-shaped positioning plate is rotatably mounted on the positioning frame, and both ends are provided with rotation grooves. The bottom end of the L-shaped positioning plate is adapted to the rotation groove, and the L-shaped positioning plate is rotatably connected to the wall of the corresponding rotation groove.

[0009] Preferably, the positioning frame has receiving grooves at both ends, unlike the two L-shaped positioning plates, and the servo motor, bidirectional lead screw, positive thread block and negative thread block are all located in the receiving grooves.

[0010] Preferably, both ends of the positioning frame are provided with connecting grooves, the two connecting grooves are connected to the corresponding receiving grooves, and the ends of the two L-shaped positioning plates away from the first connecting block are connected to the second connecting block. The lower parts of the two second connecting blocks and the two first connecting blocks are rotatably connected to the wall of the receiving groove through the corresponding connecting grooves.

[0011] Preferably, connecting rods are installed on both first connecting blocks and both second connecting blocks, and two sliding grooves are formed on the inner walls of both receiving grooves. The two drive shafts are inserted into the connecting rods on the two first connecting blocks and are adapted to the sliding grooves.

[0012] Preferably, the bottom ends of the connecting rods located on the two second connecting blocks are each equipped with a sliding shaft, and the sliding shaft is adapted to the sliding groove.

[0013] Preferably, each end of the two L-shaped positioning plates is equipped with a connecting plate, and the four connecting plates correspond to the positions of the two first connecting blocks and the two second connecting blocks, respectively.

[0014] Preferably, the bidirectional lead screw is located on a support plate mounted on the wall of the receiving groove, the servo motor is mounted on the support plate and its output shaft passes through the support plate and is connected to the bidirectional lead screw.

[0015] Preferably, each of the two L-shaped positioning plates is equipped with a plurality of pressure plates, the pressure plates on the two L-shaped positioning plates correspond one to one, and the two pressure plates on the same horizontal line are in contact with two adjacent connecting frames.

[0016] The beneficial effects of this invention are:

[0017] In this invention, two L-shaped positioning plates are set on the positioning frame, and the two L-shaped positioning plates are simultaneously controlled to contact the openings of several filter bags, thereby achieving the purpose of restricting several filter bags on the positioning frame. This method is simple to operate, eliminates the need to install and replace filter bags by inserting each filter bag into a slot through several rods, improves installation efficiency, and effectively saves the installation time of the filter screen.

[0018] In this invention, two L-shaped positioning plates drive several pressure plates to contact the connecting frames on several filter bags, thereby fully covering the opening edges of several filter bags, thus avoiding any gaps that may exist between the filter bags and the mounting groove, and effectively improving the filtration effect of the filter. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a quick-release medium-efficiency bag filter proposed in this invention;

[0020] Figure 2 This is a schematic diagram of the filter bag and connecting frame structure of a quick-release medium-efficiency bag filter proposed in this invention.

[0021] Figure 3 This is a schematic cross-sectional view of the bidirectional lead screw of a quick-release medium-efficiency bag filter proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the drive shaft and anti-threaded block structure of a quick-release medium-efficiency bag filter proposed in this invention.

[0023] Figure 5 This is a schematic diagram of the sliding groove and sliding shaft of a quick-release medium-efficiency bag filter proposed in this invention.

[0024] Figure 6 This is a side cross-sectional view of the filter bag and L-shaped positioning plate of a quick-release medium-efficiency bag filter proposed in this invention.

[0025] In the diagram: 1. Positioning frame; 2. Mounting slot; 3. Filter bag; 4. L-shaped positioning plate; 5. First connecting block; 6. Drive shaft; 7. Positive thread block; 8. Negative thread block; 9. Servo motor; 10. Bidirectional lead screw; 11. Positioning slot; 12. Connecting frame; 13. Rotating slot; 14. Receiving slot; 15. Connecting slot; 16. Second connecting block; 17. Connecting rod; 18. Slide groove; 19. Slide shaft; 20. Connecting plate; 21. Support plate; 22. Pressure plate. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Reference Figure 1-6 A quick-release medium-efficiency bag filter includes a positioning frame 1 mounted on the filter. The positioning frame 1 has several mounting slots 2, in which filter bags 3 are movably mounted. L-shaped positioning plates 4 are rotatably mounted at both longer ends of the positioning frame 1, and the L-shaped positioning plates 4 are in contact with the filter bags 3. A first connecting block 5 is mounted on the same end of both L-shaped positioning plates 4. The two first connecting blocks 5 are rotatably mounted on the positioning frame 1, and a drive shaft 6 is inserted into each of the two first connecting blocks 5. A positive threaded block 7 and a negative threaded block 8 are respectively connected to the bottom ends of the two drive shafts 6. A servo motor 9 is mounted at the end of the positioning frame 1 near the first connecting blocks 5. A bidirectional lead screw 10 is mounted at the output end of the servo motor 9. The positive threaded block 7 and the negative threaded block 8 are threadedly connected to the two ends of the bidirectional lead screw 10.

[0028] When the filter bag 3 needs to be replaced, the servo motor 9 is turned on. The servo motor 9 drives the bidirectional lead screw 10 to rotate synchronously, so that the positive thread block 7 and the negative thread block 8 threaded on the bidirectional lead screw 10 move closer to each other. This causes the two drive shafts 6 to drive the two first connecting blocks 5 to rotate, so that the two L-shaped positioning plates 4 connected to the top of the two first connecting blocks 5 rotate synchronously. This causes the ends of the two L-shaped positioning plates 4 that are close to each other to rotate synchronously to the outside of the positioning frame 1, thereby releasing the L-shaped positioning plates 4 from the contact state with the top of the filter bag 3. Then, the staff removes the filter bag 3 from the installation slot 2 for replacement. After replacement, the servo motor 9 is turned in the opposite direction, so that the positive thread block 7 and the negative thread block 8 threaded on the bidirectional lead screw 10 move away from each other. This causes the two L-shaped positioning plates 4 to rotate inward of the positioning frame 1, thereby contacting the filter bag 3 and restricting the filter bag 3 on the installation slot 2, thus completing the installation of the filter bag 3.

[0029] Reference Figure 6In this embodiment, the positioning frame 1 is provided with a plurality of positioning grooves 11, which are connected to the corresponding mounting grooves 2. The top of each of the plurality of filter bags 3 is provided with a connecting frame 12, which is adapted to the positioning grooves 11, so that the top of the plurality of filter bags 3 can contact the corresponding positioning grooves 11 through the connecting frame 12, thereby restricting the filter bags 3 on the corresponding mounting grooves 2 and preventing the filter bags 3 from falling off the mounting grooves 2. At the same time, it is convenient for the L-shaped positioning plate 4 to lock the filter bags 3 on the positioning frame 1 through the connecting frame 12.

[0030] Reference Figure 6 In this embodiment, the L-shaped positioning plate 4 is rotatably mounted on the positioning frame 1, and both ends are provided with rotation grooves 13. The bottom end of the L-shaped positioning plate 4 is adapted to the rotation groove 13, and the L-shaped positioning plate 4 is rotatably connected to the wall of the corresponding rotation groove 13, so that the L-shaped positioning plate 4 can be rotatably connected to the positioning frame 1 through the rotation groove 13, thereby ensuring the rotation state of the two L-shaped positioning plates 4.

[0031] Reference Figure 3 In this embodiment, the positioning frame 1 is different from the two L-shaped positioning plates 4, both ends of which are provided with receiving grooves 14. The servo motor 9, the bidirectional lead screw 10, the positive thread block 7 and the negative thread block 8 are all located in the receiving grooves 14. Thus, the receiving grooves 14 provide installation space for some parts, avoiding the situation where the parts are installed outside the positioning frame 1, which would make it inconvenient to install the positioning frame 1 and the filter.

[0032] Reference Figure 3 In this embodiment, both ends of the positioning frame 1 are provided with connecting grooves 15. The two connecting grooves 15 are connected to the corresponding receiving grooves 14. The ends of the two L-shaped positioning plates 4 away from the first connecting block 5 are each connected to a second connecting block 16. The lower parts of the two second connecting blocks 16 and the two first connecting blocks 5 are rotatably connected to the wall of the receiving groove 14 through the corresponding connecting grooves 15, so that the first connecting block 5 and the second connecting block 16 can be rotatably connected to the receiving groove 14 through the connecting grooves 15, thereby ensuring the power transmission on the first connecting block 5 and the second connecting block 16, so as to achieve the purpose of driving the two L-shaped positioning plates 4 to rotate through the first connecting block 5 and the second connecting block 16.

[0033] Reference Figure 3 , Figure 5 In this embodiment, connecting rods 17 are installed on both first connecting blocks 5 and both second connecting blocks 16. Two sliding grooves 18 are opened on the inner walls of both receiving grooves 14. Two drive shafts 6 are inserted into the connecting rods 17 on the two first connecting blocks 5 and are adapted to the sliding grooves 18, so that when the drive shafts 6 drive the connecting rods 17 to rotate, the bottom end of the connecting rods 17 can always move along the direction of the sliding grooves 18, thereby achieving the purpose of driving the two L-shaped positioning plates 4 to rotate synchronously through the first connecting blocks 5.

[0034] Reference Figure 5 In this embodiment, the bottom ends of the connecting rods 17 located on the two second connecting blocks 16 are each equipped with a sliding shaft 19. The sliding shaft 19 is adapted to the sliding groove 18, so that the two second connecting blocks 16 can be slidably connected to the sliding groove 18 through the connecting rods 17, thereby providing support for the end of the L-shaped positioning plate 4 away from the bidirectional lead screw 10, so that the two ends of the L-shaped positioning plate 4 can move synchronously, thereby maintaining the balance of the two ends.

[0035] Reference Figure 3 In this embodiment, connecting plates 20 are installed at both ends of the two L-shaped positioning plates 4. The four connecting plates 20 correspond to the positions of the two first connecting blocks 5 and the two second connecting blocks 16, respectively, so that the two first connecting blocks 5 and the two second connecting blocks 16 can be connected through the corresponding L-shaped positioning plates 4, thereby achieving the purpose of driving the corresponding L-shaped positioning plates 4 to rotate through the connecting plates 20.

[0036] Reference Figure 3 In this embodiment, the bidirectional lead screw 10 is located on the wall of the receiving groove 14, on which a support plate 21 is installed. The servo motor 9 is mounted on the support plate 21 and its output shaft passes through the support plate 21 and is connected to the bidirectional lead screw 10. The support plate 21 provides support for the installation of the servo motor 9, so that the power on the servo motor 9 can be smoothly transmitted to the bidirectional lead screw 10, thereby ensuring the normal operation of the bidirectional lead screw 10.

[0037] Reference Figure 1 , Figure 6 In this embodiment, several pressure plates 22 are installed on each of the two L-shaped positioning plates 4. The pressure plates 22 on the two L-shaped positioning plates 4 correspond one-to-one, and the two pressure plates 22 on the same horizontal line are in contact with two adjacent connecting frames 12. When the two L-shaped positioning plates 4 rotate into the positioning frame 1, they can drive the several pressure plates 22 to rotate synchronously and contact the corresponding connecting frames 12. This covers the area of ​​the connecting frames 12 that the L-shaped positioning plates 4 cannot cover, thereby achieving complete restriction of the connecting frames 12 on several filter bags 3. As a result, the opening edges of several filter bags 3 can be completely in contact with the positioning frame 1, so that all the air can be filtered through the filter bags 3, improving the air filtration effect.

[0038] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A quick-release medium-efficiency bag filter, comprising a positioning frame (1) mounted on the filter, wherein the positioning frame (1) has a plurality of mounting slots (2), and filter bags (3) are movably mounted in each of the plurality of mounting slots (2), characterized in that: L-shaped positioning plates (4) are rotatably mounted on both ends of the longer end of the positioning frame (1). The L-shaped positioning plates (4) are in contact with the filter bag (3). A first connecting block (5) is mounted on the same end of both L-shaped positioning plates (4). The two first connecting blocks (5) are rotatably mounted on the positioning frame (1). A drive shaft (6) is inserted into each of the two first connecting blocks (5). A positive thread block (7) and a negative thread block (8) are respectively connected to the bottom end of the two drive shafts (6). A servo motor (9) is mounted on the end of the positioning frame (1) near the first connecting block (5). A bidirectional lead screw (10) is mounted on the output end of the servo motor (9). The positive thread block (7) and the negative thread block (8) are threadedly connected to the two ends of the bidirectional lead screw (10).

2. The quick-release medium-efficiency bag filter according to claim 1, characterized in that: The positioning frame (1) has several positioning slots (11) connected to the corresponding mounting slots (2). The tops of several filter bags (3) are all equipped with connecting frames (12) that are compatible with the positioning slots (11).

3. A quick-release medium-efficiency bag filter according to claim 1, characterized in that: The positioning frame (1) is rotatably mounted with an L-shaped positioning plate (4), both ends of which are provided with rotating grooves (13). The bottom end of the L-shaped positioning plate (4) is adapted to the rotating groove (13), and the L-shaped positioning plate (4) is rotatably connected to the wall of the corresponding rotating groove (13).

4. A quick-release medium-efficiency bag filter according to claim 1, characterized in that: The positioning frame (1) differs from the two L-shaped positioning plates (4) in that both ends are provided with receiving grooves (14), and the servo motor (9), bidirectional lead screw (10), positive thread block (7) and negative thread block (8) are all located in the receiving grooves (14).

5. A quick-release medium-efficiency bag filter according to claim 4, characterized in that: The positioning frame (1) has connecting grooves (15) at both ends. The two connecting grooves (15) are connected to the corresponding receiving grooves (14). The ends of the two L-shaped positioning plates (4) away from the first connecting block (5) are connected to the second connecting blocks (16). The lower parts of the two second connecting blocks (16) and the two first connecting blocks (5) are rotatably connected to the wall of the receiving groove (14) through the corresponding connecting grooves (15).

6. A quick-release medium-efficiency bag filter according to claim 5, characterized in that: Connecting rods (17) are installed on both first connecting blocks (5) and both second connecting blocks (16). Two sliding grooves (18) are opened on the inner walls of both receiving grooves (14). Two drive shafts (6) are inserted into the connecting rods (17) on the two first connecting blocks (5) and are adapted to the sliding grooves (18).

7. A quick-release medium-efficiency bag filter according to claim 5, characterized in that: The bottom ends of the connecting rods (17) located on the two second connecting blocks (16) are each equipped with a sliding shaft (19), which is adapted to the sliding groove (18).

8. A quick-release medium-efficiency bag filter according to claim 5, characterized in that: Both ends of the two L-shaped positioning plates (4) are equipped with connecting plates (20), and the four connecting plates (20) correspond to the positions of the two first connecting blocks (5) and the two second connecting blocks (16), respectively.

9. A quick-release medium-efficiency bag filter according to claim 1, characterized in that: The bidirectional lead screw (10) is located on the wall of the receiving groove (14) where a support plate (21) is installed. The servo motor (9) is installed on the support plate (21) and its output shaft passes through the support plate (21) and is connected to the bidirectional lead screw (10).

10. A quick-release medium-efficiency bag filter according to claim 2, characterized in that: Several pressure plates (22) are installed on both L-shaped positioning plates (4). The pressure plates (22) on the two L-shaped positioning plates (4) correspond one-to-one, and the two pressure plates (22) on the same horizontal line are in contact with the two adjacent connecting frames (12).

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