Overhead ventilation filtering device

Abstract

The utility model relates to the technical field of air purification equipment, in particular to an overhead ventilation filtering device which comprises a shell, a filter is fixedly installed on the inner surface of the shell, a fixing frame is fixedly connected to the inner surface of the shell, a limiting plate is fixedly connected to the inner surface of the shell, and the limiting plate is fixedly connected to the inner surface of the shell. A fixed rod is fixedly connected to the inner surface of the shell, a movable rod is movably connected to the surface of the fixed rod, a limiting rod is fixedly connected to the surface of the movable rod, and a limiting block is fixedly connected to the inner surface of the shell. According to the utility model, the filter and the dismounting port are staggered and separated on the shell, so that the filter can be dismounted from the dismounting port only by dismounting the filter from the shell and then moving the filter in the dismounting process of the filter, the filter is prevented from falling off from the shell, the construction of field personnel is facilitated, and the working efficiency is improved. And the safety of field personnel and the filter is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification equipment, in particular to an overhead ventilation and filtering device. Background Technique

[0002] Filters are provided in the ventilation system of a clean project. Due to space reasons, the filtering device is arranged on the top of the wall. The filter in the filtering device on the top of the wall needs to be replaced regularly according to the usage situation. Usually, the disassembly method of the filter is straight up and down. When operating, the operator has to tighten or disassemble the pressing device while holding up the filter. Under the action of its own gravity, the filter has a risk of suddenly falling, which is very inconvenient for on-site personnel to construct, and may also damage the filter. Content of the Utility Model

[0003] The purpose of the utility model is to provide an overhead ventilation and filtering device to solve the problems in the above-mentioned background technique that in the existing ventilation and filtering device, during the disassembly process of the filter, there is a risk of suddenly falling, which is very inconvenient for on-site personnel to construct, and may also damage the filter.

[0004] To achieve the above purpose, the utility model provides the following technical solution, an overhead ventilation and filtering device: including a housing, the inner surface of the housing is fixedly installed with a filter, the inner surface of the housing is fixedly connected with a fixed frame, the inner surface of the housing is fixedly connected with a limiting plate, the inner surface of the housing is fixedly connected with a fixed rod, a movable rod is movably connected to the surface of the fixed rod, a limiting rod is fixedly connected to the surface of the movable rod, a limiting block is fixedly connected to the inner surface of the housing, a connecting rod is fixedly connected to the surface of the movable rod, a first nut is fixedly connected to the inner surface of the housing, a first bolt is threadedly connected to the surface of the first nut, a disassembly port is arranged at the bottom of the housing, a sealing frame is fixedly connected to the inner surface of the disassembly port, a second bolt is fixedly connected to the bottom of the housing, a cover plate is perforatedly connected to the surface of the second bolt, a second nut is threadedly connected to the surface of the second bolt, and a sealing strip is fixedly connected to the surface of the cover plate.

[0005] Preferably, four groups of limiting plates are provided, and the four groups of limiting plates are respectively on the four sides of the filter. The fixed frame and the limiting rod are respectively on both sides of the fixed frame. The fixed frame and the limiting rod limit the filter on the surface of the limiting plate.

[0006] Preferably, the movable rod rotates inside the housing through the fixed rod, the limiting rod and the connecting rod rotate inside the housing through the movable rod, and the limiting rod and the connecting rod are perpendicular to each other.

[0007] Preferably, the movable rod can slide inside the housing through the fixed rod. The movable rod drives the limit rod and the connecting rod to slide synchronously. One end of the limit block away from the housing is fixedly connected to the fixed rod, and the limit block limits the sliding range of the movable rod.

[0008] Preferably, a circular hole is provided on the surface of the connecting rod. The first bolt passes through the circular hole of the connecting rod, and the first bolt restricts the position of the connecting rod through the first nut. The connecting rod further restricts the position of the limit rod through the movable rod. When the limit rod is in a vertical state, it will contact and connect to one side of the filter.

[0009] Preferably, both the sealing frame and the sealing strip are in the shape of a "mouth". The cover plate presses the sealing strip on the surface of the sealing frame.

[0010] Preferably, a circular hole is provided on the surface of the cover plate. The second bolt passes through the circular hole of the cover plate, and the second bolt fixedly installs the cover plate on the surface of the disassembly opening through the second nut. The disassembly opening and the filter are misaligned with each other.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. For this ventilation and filtration device, the filter and the disassembly opening are misaligned and separated on the housing. When disassembling the filter, it is necessary to first remove the filter from the housing and then move the filter before it can be removed from the disassembly opening, which avoids the filter falling from the housing, facilitates the construction of on-site personnel, and ensures the safety of on-site personnel and the filter.

[0013] 2. For this ventilation and filtration device, the movable rod slides from both sides of the inner surface of the housing to contact and connect with the limit block. At this time, the movable rod rotates on the movable rod until the limit rod fits on the surface of the filter. At this time, the circular hole of the connecting rod is facing the first nut. The first bolt passes through the circular hole of the connecting rod and is threadedly connected to the first nut. The first nut restricts the position of the limit rod through the connecting rod and the movable rod, and then fixedly installs the filter inside the housing through the limit rod. Since the connecting rod and the first bolt are directly above the disassembly opening, their installation and disassembly positions and angles are better, improving the working efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view, upward view, and three-dimensional schematic diagram of the structure of the present utility model;

[0015] Figure 2 It is a front view and sectional view schematic diagram of the structure of the present utility model;

[0016] Figure 3 It is a side view, upward view, sectional view, and three-dimensional schematic diagram of the structure of the present utility model;

[0017] Figure 4 The enlarged structural schematic diagram of part A in the present utility model Figure 2 ;

[0018] Figure 5 The enlarged structural schematic diagram of part B in the present utility model Figure 2 ;

[0019] In the figure: 1. Housing; 2. Filter; 3. Fixed frame; 4. Limiting plate; 5. Fixed rod; 6. Movable rod; 7. Limiting rod; 8. Limiting block; 9. Connecting rod; 10. First nut; 11. First bolt; 12. Disassembly opening; 13. Sealing frame; 14. Second bolt; 15. Cover plate; 16. Second nut; 17. Sealing strip Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0021] Please refer to Figures 1-5 , an embodiment provided by the present utility model

[0022] A top-mounted ventilation and filtration device: It includes a housing 1. A filter 2 is fixedly installed on the inner surface of the housing 1. A fixed frame 3 is fixedly connected to the inner surface of the housing 1. A limiting plate 4 is fixedly connected to the inner surface of the housing 1. A fixed rod 5 is fixedly connected to the inner surface of the housing 1. A movable rod 6 is movably connected to the surface of the fixed rod 5. A limiting rod 7 is fixedly connected to the surface of the movable rod 6. A limiting block 8 is fixedly connected to the inner surface of the housing 1. A connecting rod 9 is fixedly connected to the surface of the movable rod 6. A first nut 10 is fixedly connected to the inner surface of the housing 1. A first bolt 11 is threadedly connected to the surface of the first nut 10. A disassembly opening 12 is provided at the bottom of the housing 1. A sealing frame 13 is fixedly connected to the inner surface of the disassembly opening 12. A second bolt 14 is fixedly connected to the bottom of the housing 1. A cover plate 15 is perforated and connected to the surface of the second bolt 14. A second nut 16 is threadedly connected to the surface of the second bolt 14. A sealing strip 17 is fixedly connected to the surface of the cover plate 15. The filtering device misplaces between the fixed frame 3 and the disassembly opening 12, so that the fixed frame 3 will not fall during the disassembly process, which is convenient for construction workers to carry out disassembly construction and ensures the safety of construction workers and the filter 2. Further, four groups of limiting plates 4 are provided, and the four groups of limiting plates 4 are respectively on the four sides of the filter 2. The fixed frame 3 and the limiting rod 7 are respectively located on both sides of the fixed frame 3. The limiting plate 4 limits the horizontal position of the filter 2 inside the housing 1. The fixed frame 3 and the limiting rod 7 limit the filter 2 on the surface of the limiting plate 4, thereby realizing the fixed installation of the filter 2 inside the housing 1.

[0023] Further, the movable rod 6 rotates inside the housing 1 through the fixed rod 5. The limiting rod 7 and the connecting rod 9 rotate inside the housing 1 through the movable rod 6. The limiting rod 7 and the connecting rod 9 are perpendicular to each other. When the limiting rod 7 is in contact with the filter 2 vertically, the connecting rod 9 can be parallel to the housing 1 inside the housing 1. Only when the connecting rod 9 is parallel can the first bolt 11 be installed on the first nut 10.

[0024] Further, the movable rod 6 can slide inside the housing 1 through the fixed rod 5. Two groups of movable rods 6 are provided, respectively on both sides inside the housing 1. The movable rod 6 drives the limiting rod 7 and the connecting rod 9 to slide synchronously. One end of the limiting block 8 far from the housing 1 is fixedly connected to the fixed rod 5. The limiting block 8 limits the sliding range of the movable rod 6. When the movable rod 6 slides to contact the limiting block 8, at this time, the two sides of the movable rod 6, the connecting rod 9, the first nut 10 and the filter 2 are on the same horizontal plane, and the first bolt 11 can penetrate through the connecting rod 9 and be installed on the first nut 10. When the movable rod 6 slides to contact the inner surface of the housing 1 on both sides of the housing 1, at this time, the movable rod 6 and the limiting rod 7 will not block the filter 2, which is convenient for removing the filter 2.

[0025] Furthermore, a circular hole is provided on the surface of the connecting rod 9. The first bolt 11 passes through the circular hole of the connecting rod 9. The first bolt 11 restricts the position of the connecting rod 9 through the first nut 10. The connecting rod 9 restricts the position of the limiting rod 7 through the movable rod 6. When the limiting rod 7 is in a vertical state, it will contact and connect to one side of the filter 2, thereby realizing the position limitation of the filter 2.

[0026] Furthermore, both the sealing frame 13 and the sealing strip 17 are in the shape of a "mouth". The cover plate 15 presses the sealing strip 17 on the surface of the sealing frame 13, so as to form a seal between the cover plate 15 and the disassembly opening 12.

[0027] Furthermore, a circular hole is provided on the surface of the cover plate 15. The second bolt 14 passes through the circular hole of the cover plate 15. The second bolt 14 fixes and installs the cover plate 15 on the surface of the disassembly opening 12 through the second nut 16, thereby completing the installation of the cover plate 15. The disassembly opening 12 and the filter 2 are misaligned with each other, so that when the filter 2 is disassembled, it will not directly fall off the housing 1.

[0028] Working principle: Separate the filter 2 and the disassembly opening 12 in a misaligned manner on the housing 1, so that during the disassembly process of the filter 2, it is necessary to first remove the filter 2 from the housing 1 and then move the filter 2 before the filter 2 can be removed from the disassembly opening 12, avoiding the filter 2 from falling off the housing 1, facilitating the construction of on-site personnel, ensuring the safety of on-site personnel and the filter 2. At the same time, when the filter 2 is disassembled and installed on the housing 1 for the first time, the movable rod 6 will slide from both sides of the inner surface of the housing 1 to contact and connect with the limiting block 8. At this time, the movable rod 6 rotates on the movable rod 6 until the limiting rod 7 fits on the surface of the filter 2. At this time, the circular hole of the connecting rod 9 is facing the first nut 10. The first bolt 11 passes through the circular hole of the connecting rod 9 and is threadedly connected to the first nut 10. The first nut 10 restricts the position of the limiting rod 7 through the connecting rod 9 and the movable rod 6, and then fixes and installs the filter 2 inside the housing 1 through the limiting rod 7. Since both the connecting rod 9 and the first bolt 11 are directly above the disassembly opening 12, their installation and disassembly positions and angles are better, improving the working efficiency of the staff.

[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A top-mounted ventilation and filtering device, characterized in that: It includes a housing (1), a filter (2) is fixedly installed on the inner surface of the housing (1), a fixed frame (3) is fixedly connected to the inner surface of the housing (1), a limiting plate (4) is fixedly connected to the inner surface of the housing (1), a fixed rod (5) is fixedly connected to the inner surface of the housing (1), a movable rod (6) is movably connected to the surface of the fixed rod (5), a limiting rod (7) is fixedly connected to the surface of the movable rod (6), a limiting block (8) is fixedly connected to the inner surface of the housing (1), a connecting rod (9) is fixedly connected to the surface of the movable rod (6), a first nut (10) is fixedly connected to the inner surface of the housing (1), a first bolt (11) is threadedly connected to the surface of the first nut (10), a disassembly opening (12) is provided at the bottom of the housing (1), a sealing frame (13) is fixedly connected to the inner surface of the disassembly opening (12), a second bolt (14) is fixedly connected to the bottom of the housing (1), a cover plate (15) is perforatedly connected to the surface of the second bolt (14), a second nut (16) is threadedly connected to the surface of the second bolt (14), and a sealing strip (17) is fixedly connected to the surface of the cover plate (15).

2. A top-mounted ventilation and filtering device according to claim 1, characterized in that: There are four groups of the limiting plates (4), and the four groups of limiting plates (4) are respectively on the four sides of the filter (2). The fixed frame (3) and the limiting rod (7) are respectively located on both sides of the fixed frame (3). The fixed frame (3) and the limiting rod (7) limit the filter (2) on the surface of the limiting plate (4).

3. A top-mounted ventilation and filtering device according to claim 1, characterized in that: The movable rod (6) rotates inside the housing (1) through the fixed rod (5). The limiting rod (7) and the connecting rod (9) rotate inside the housing (1) through the movable rod (6). The limiting rod (7) and the connecting rod (9) are perpendicular to each other.

4. A top-mounted ventilation and filtering device according to claim 3, characterized in that: The movable rod (6) can slide inside the housing (1) through the fixed rod (5). The movable rod (6) drives the limiting rod (7) and the connecting rod (9) to slide synchronously. One end of the limiting block (8) far from the housing (1) is fixedly connected to the fixed rod (5). The limiting block (8) limits the sliding range of the movable rod (6).

5. The top-mounted ventilation and filtering device according to claim 1, characterized in that: A circular hole is provided on the surface of the connecting rod (9). The first bolt (11) passes through the circular hole of the connecting rod (9). The first bolt (11) limits the position of the connecting rod (9) through the first nut (10). The connecting rod (9) limits the position of the limiting rod (7) through the movable rod (6). The limiting rod (7) will contact and connect to one side of the filter (2) in the vertical state.

6. A top-mounted ventilation and filtering device according to claim 1, characterized in that: Both the sealing frame (13) and the sealing strip (17) are in the shape of a "mouth". The cover plate (15) presses the sealing strip (17) on the surface of the sealing frame (13).

7. A top-mounted ventilation and filtering device according to claim 6, characterized in that: A circular hole is provided on the surface of the cover plate (15). The second bolt (14) passes through the circular hole of the cover plate (15). The second bolt (14) fixedly installs the cover plate (15) on the surface of the disassembly opening (12) through the second nut (16). The disassembly opening (12) and the filter (2) are misaligned with each other.

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