Filtering device of building ventilation opening

Abstract

The utility model relates to the technical field of filtering devices, and discloses a filtering device of a building ventilation opening, which comprises a ventilation pipeline, a side cavity is arranged at the top of the front surface of the ventilation pipeline, and a filtering net plate is movably arranged in the ventilation pipeline; the fixing mechanism is arranged at the top of the front face of the ventilation pipeline; wherein the fixing mechanism comprises a pneumatic cylinder. By arranging the pneumatic cylinder, the round rod, the rotating block and the round shaft, when the pneumatic cylinder operates, the round rod can be driven to move rightwards, then the rotating block is pushed to rotate with the round shaft as the axis, and when the rotating block rotates to the outer side of the filter screen plate, the fixing effect on the filter screen plate is relieved; at the moment, the filter screen plate is pulled to move outwards to complete the disassembly of the filter screen plate, so that the purpose of conveniently and quickly disassembling and assembling the filter screen plate is achieved, the problems that the filter screen plate is tedious to fix by bolts and the bolts are easy to slip are solved, and the convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, and more specifically, to a filtering device for a building vent. Background Art

[0002] Vents are small holes in the walls or roofs of some houses for ventilation.

[0003] Since the air contains a large amount of dust and particulate matter, the ventilation openings of buildings are all equipped with filtering devices. Although the current filtering devices can achieve basic filtering functions during actual use, the existing filtering devices generally fix the filter screen by bolts. When the filter screen is disassembled, the operator needs to use tools to rotate the bolts to release the filter screen and then disassemble it. However, long-term rotation of the bolts can easily cause thread slippage, and the filter screen cannot be fixed, so it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a filtering device for a building vent, which has the advantage of being easy to disassemble and install the filter screen.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a filtering device for a building vent, comprising:

[0006] A ventilation duct, wherein a side cavity is provided at the top of the front side of the ventilation duct, and a filter screen is movably installed inside the ventilation duct;

[0007] A fixing mechanism, the fixing mechanism being arranged on the top of the front side of the ventilation duct;

[0008] Among them, the fixing mechanism includes a pneumatic cylinder, the back side of the pneumatic cylinder is fixedly connected to the front side of the ventilation duct, the right side of the pneumatic cylinder is fixedly connected to a round rod, the outer surface of the round rod is movably connected to the inner surface of the side cavity, the back side of the round rod passes through the side cavity and extends to the inside of the side cavity and is movably connected to a rotating block, the outer surface of the rotating block is movably connected to the inner surface of the filter screen plate, the internal movably sleeved with a round shaft, the round shaft is fixedly installed inside the side cavity, and the rotating block rotates around the round shaft as the axis to release the fixing effect on the filter screen plate.

[0009] As a preferred technical solution of the utility model, the outer surface of the round rod is fixedly sleeved with a fixing ring, the number of the fixing rings is two, the outer sides of the two fixing rings are movably connected to the inner surface of the side cavity, and the inner sides of the two fixing rings are movably connected to the outer side of the rotating block.

[0010] As a preferred technical solution of the utility model, the filter screen is internally movably connected with a movable screen, the number of the movable screens is two, the tops and bottoms of the two movable screens are fixedly connected to limiting blocks, and the outer surface of the limiting block is movably connected to the inner surface of the ventilation duct.

[0011] As a preferred technical solution of the utility model, the number of the limit blocks is four, the sizes of the four limit blocks are the same, and the four limit blocks are symmetrical with respect to the center of the filter screen plate.

[0012] As a preferred technical solution of the utility model, the front side of the filter screen is fixedly connected to a fixed block, the left side of the inner cavity of the fixed block is fixedly connected to a spring, the other end of the spring is fixedly connected to a connecting plate, and the back side of the connecting plate is movably connected to the front side of the filter screen.

[0013] As a preferred technical solution of the utility model, the left and right sides of the back side of the connecting plate are fixedly connected with pins, the number of the pins is two, the back sides of the two pins sequentially penetrate the filter screen plate and the movable screen plate and extend to the inside of the movable screen plate, and the two pins move outward to release the fixing effect on the two movable screen plates.

[0014] As a preferred technical solution of the utility model, a handle is fixedly connected to the front side of the connecting plate, and the outer surface of the handle is rough.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model is provided with a pneumatic cylinder, a round rod, a rotating block and a round shaft. When the pneumatic cylinder is in operation, the round rod will be driven to move to the right, thereby pushing the rotating block to rotate with the round shaft as the axis. When the rotating block rotates to the outside of the filter screen plate, the fixing effect on the filter screen plate will be released. At this time, the filter screen plate can be pulled outward to complete the removal of the filter screen plate, thereby achieving the purpose of facilitating the rapid removal and installation of the filter screen plate, solving the problem that the bolts are cumbersome and easy to slip when fixing the filter screen plate, and improving the convenience of the device.

[0017] 2. The utility model provides a spring, a connecting plate, a latch and a handle. Pulling the handle to move outward will drive the connecting plate and the latch to move outward and squeeze the spring. When the two latches move to the outside of the two movable mesh plates, the fixing effect of the two movable mesh plates will be released. At this time, the two movable mesh plates are pushed to move toward each other to the inside of the filter mesh plates. Then the handle is released, and the two latches are driven to reset and inserted into the inside of the two movable mesh plates to fix them under the elastic recovery action of the spring, thereby achieving the purpose of shrinking the two movable mesh plates and solving the problem of the filter mesh plates occupying the storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the rotating block of the utility model;

[0020] Figure 3 It is a schematic cross-sectional structure diagram of the latch of the utility model;

[0021] Figure 4 It is a cross-sectional structural schematic diagram of the side of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fixed collar of the utility model;

[0023] Figure 6 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0024] In the figure: 1. ventilation duct; 2. side cavity; 3. filter screen; 4. pneumatic cylinder; 5. round rod; 6. rotating block; 7. round shaft; 8. fixed collar; 9. movable screen; 10. limit block; 11. fixed block; 12. spring; 13. connecting plate; 14. latch; 15. handle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 6 As shown, the utility model provides a filtering device for a building vent, comprising:

[0027] A ventilation duct 1, a side cavity 2 is provided at the top of the front side of the ventilation duct 1, and a filter screen 3 is movably installed inside the ventilation duct 1;

[0028] A fixing mechanism, which is arranged on the top of the front side of the ventilation duct 1;

[0029] Among them, the fixing mechanism includes a pneumatic cylinder 4, the back of the pneumatic cylinder 4 is fixedly connected to the front of the ventilation duct 1, and a round rod 5 is fixedly connected to the right side of the pneumatic cylinder 4. The outer surface of the round rod 5 is movably connected to the inner surface of the side cavity 2. The back of the round rod 5 passes through the side cavity 2 and extends to the inside of the side cavity 2 and is movably connected to a rotating block 6. The outer surface of the rotating block 6 is movably connected to the inner surface of the filter screen plate 3. The inside of the rotating block 6 is movably sleeved with a round shaft 7, which is fixedly installed inside the side cavity 2. The rotating block 6 rotates around the round shaft 7 as the axis to release the fixing effect on the filter screen plate 3.

[0030] When the pneumatic cylinder 4 is in operation, the round rod 5 will be driven to move to the right, thereby causing the rotating block 6 to rotate around the round shaft 7. When the rotating block 6 rotates to the outside of the filter screen plate 3, the fixing effect on the filter screen plate 3 will be released, thereby achieving the purpose of facilitating the disassembly and installation of the filter screen plate 3.

[0031] Among them, the outer surface of the round rod 5 is fixedly sleeved with a fixing ring 8, and there are two fixing rings 8. The outer sides of the two fixing rings 8 are movably connected to the inner surface of the side cavity 2, and the inner sides of the two fixing rings 8 are movably connected to the outer side of the rotating block 6.

[0032] The design of the two fixing rings 8 serves to limit the position of the rotating block 6 .

[0033] Among them, the filter screen plate 3 is internally movably connected with a movable screen plate 9, and there are two movable screen plates 9. The tops and bottoms of the two movable screen plates 9 are fixedly connected with limit blocks 10, and the outer surfaces of the limit blocks 10 are movably connected to the inner surface of the ventilation duct 1.

[0034] The design of the limit block 10 plays a role in limiting the movable mesh plate 9.

[0035] There are four limit blocks 10 , the sizes of the four limit blocks 10 are the same, and the four limit blocks 10 are symmetrical with respect to the center of the filter screen plate 3 .

[0036] The design of the four limiting blocks 10 has a better limiting effect on the movable mesh plate 9 .

[0037] Among them, the front side of the filter screen plate 3 is fixedly connected with a fixing block 11, the left side of the inner cavity of the fixing block 11 is fixedly connected with a spring 12, the other end of the spring 12 is fixedly connected with a connecting plate 13, and the back side of the connecting plate 13 is movably connected to the front side of the filter screen plate 3.

[0038] The outward movement of the connecting plate 13 will press the spring 12 to move outward.

[0039] Among them, the left and right sides of the back side of the connecting plate 13 are fixedly connected with pins 14, and the number of the pins 14 is two. The back sides of the two pins 14 pass through the filter screen plate 3 and the movable screen plate 9 in turn and extend to the inside of the movable screen plate 9. The two pins 14 move outward to release the fixing effect on the two movable screen plates 9.

[0040] When the two latches 14 move outward to the outside of the movable mesh plates 9 , the fixing effect on the two movable mesh plates 9 will be released. At this time, the two movable mesh plates 9 can be pushed to move toward each other to complete the storage of the two movable mesh plates 9 .

[0041] A handle 15 is fixedly connected to the front side of the connecting plate 13 , and the outer surface of the handle 15 is rough.

[0042] The design of the handle 15 makes it easy for an operator to pull the connecting plate 13 outward by pulling the handle 15 .

[0043] The working principle and use process of this utility model:

[0044] When a large amount of dust is absorbed inside the filter screen plate 3, it needs to be replaced. First, start the pneumatic cylinder 4, which will drive the round rod 5 to move to the right, and then push the rotating block 6 to rotate around the circular shaft 7. When the rotating block 6 rotates to the outside of the filter screen plate 3, the fixing effect on the filter screen plate 3 will be released. At this time, pull the filter screen plate 3 to move outward to complete the removal of the filter screen plate 3, and then put the new filter screen plate 3 into the interior of the ventilation duct 1. Then start the pneumatic cylinder 4 to drive the rotating block 6 to reset and fix the filter screen plate 3, thereby achieving the purpose of facilitating the quick removal and installation of the filter screen plate 3.

[0045] When storing the disassembled filter screen panel 3, the operator pulls the handle 15 to move outward, which will drive the connecting plate 13 and the latch 14 to move outward and squeeze the spring 12. When the two latches 14 move to the outside of the two movable screen panels 9, the fixing effect of the two movable screen panels 9 will be released. At this time, the two movable screen panels 9 are pushed to move toward each other to the inside of the filter screen panel 3, and then the handle 15 is released. Due to the elastic recovery effect of the spring 12, the two latches 14 are reset, inserted into the inside of the two movable screen panels 9 and fixed to them, thereby achieving the purpose of reducing the storage space of the filter screen panel 3 and increasing the storage number of the filter screen panels 3.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for a building vent, characterized in that: Included are: A ventilation duct (1), wherein a side cavity (2) is provided at the top of the front side of the ventilation duct (1), and a filter screen (3) is movably installed inside the ventilation duct (1); A fixing mechanism, the fixing mechanism being arranged on the top of the front side of the ventilation duct (1); The fixing mechanism comprises a pneumatic cylinder (4), the back side of the pneumatic cylinder (4) is fixedly connected to the front side of the ventilation duct (1), the right side of the pneumatic cylinder (4) is fixedly connected to a round rod (5), the outer surface of the round rod (5) is movably connected to the inner surface of the side cavity (2), the back side of the round rod (5) passes through the side cavity (2) and extends to the inside of the side cavity (2) and is movably connected to a rotating block (6), the outer surface of the rotating block (6) is movably connected to the inner surface of the filter screen plate (3), the inside of the rotating block (6) is movably sleeved with a round shaft (7), the round shaft (7) is fixedly installed inside the side cavity (2), and the rotating block (6) rotates with the round shaft (7) as the axis to release the fixing effect on the filter screen plate (3).

2. A filter device for building vents according to claim 1, characterized in that: The outer surface of the round rod (5) is fixedly sleeved with a fixing ring (8), and the number of the fixing rings (8) is two. The outer sides of the two fixing rings (8) are movably connected to the inner surface of the side cavity (2), and the inner sides of the two fixing rings (8) are movably connected to the outer side of the rotating block (6).

3. A filter device for building vents according to claim 1, characterized in that: The filter screen plate (3) is internally movably connected to a movable screen plate (9), the number of the movable screen plates (9) being two, the tops and bottoms of the two movable screen plates (9) being fixedly connected to limit blocks (10), the outer surfaces of the limit blocks (10) being movably connected to the inner surfaces of the ventilation duct (1).

4. A filter device for building vents according to claim 3, characterized in that: The number of the limit blocks (10) is four, the four limit blocks (10) have the same size, and the four limit blocks (10) are symmetrical with respect to the center of the filter screen plate (3).

5. The filtering device for building vents according to claim 1, characterized in that: The front side of the filter screen plate (3) is fixedly connected to a fixed block (11), the left side of the inner cavity of the fixed block (11) is fixedly connected to a spring (12), the other end of the spring (12) is fixedly connected to a connecting plate (13), and the back side of the connecting plate (13) is movably connected to the front side of the filter screen plate (3).

6. A filter device for building vents according to claim 5, characterized in that: The left and right sides of the back of the connecting plate (13) are fixedly connected with latches (14), the number of the latches (14) being two, the backs of the two latches (14) sequentially passing through the filter screen plate (3) and the movable screen plate (9) and extending into the interior of the movable screen plate (9), and the two latches (14) move outward to release the fixing effect on the two movable screen plates (9).

7. The filtering device for building vents according to claim 5, characterized in that: A handle (15) is fixedly connected to the front side of the connecting plate (13), and the outer surface of the handle (15) is rough.

Images