Top unloading type high-efficiency filter

Abstract

The utility model discloses a top-unloading type high-efficiency filter, which relates to the technical field of ventilation, and comprises an outer frame and a filter element, and further comprises a cover plate, a top-unloading mechanism, a top-unloading mechanism and a top-unloading mechanism, the driving rod is vertically arranged on the cover plate in a sliding mode, the driving rod is parallel to the height direction of the outer frame, a driving protruding block is arranged on the side face, facing the outer frame, of the driving rod, a driven protruding block is arranged on the side face, facing the driving rod, of the outer frame, the driving protruding block and the driven protruding block are each provided with an inclined face, and the inclined faces of the driving protruding block and the driven protruding block make contact with each other; when the driving rod slides towards the cover plate, the driving protruding block extrudes the driven protruding block, so that the outer frame and the filter element slide in the direction away from the driving rod, and then the outer frame is attached to an air supply outlet of the air supply laminar flow ceiling. An independent installation structure is adopted, the efficient filter can be detached from the top of the air supply laminar flow ceiling, maintenance personnel do not need to detach the air supply laminar flow ceiling from a ceiling of a clean room, the operation time is shortened, and the risk that the clean room is polluted is reduced.

Description

Technical Field

[0001] The present application relates to the field of ventilation technology, and in particular to a top-discharging high-efficiency filter. Background Art

[0002] The air supply laminar flow ceiling is a ventilation device commonly used in clean rooms such as operating rooms. It is installed in the ceiling of the clean room and filters the incoming air efficiently before delivering it to the clean room to ensure the cleanliness of the clean room and create a good operating environment for surgery and other needs.

[0003] In the laminar air flow ceiling, the most important component is the high-efficiency filter, which is made of materials such as glass fiber and has tiny and uniform filter holes. These filter holes can block dust and bacteria above a certain diameter from the clean room. As a filtering component, the filtering effect of the high-efficiency filter will gradually deteriorate after a period of use, so the high-efficiency filter needs to be replaced. At present, when replacing the high-efficiency filter, the entire laminar air flow ceiling needs to be removed from the ceiling of the clean room, and then the high-efficiency filter needs to be replaced, such as CN115183331A. Obviously, this replacement method has the disadvantage of long operation time, and too long operation time will increase the risk of contamination of the clean room. Utility Model Content

[0004] The embodiment of the present application provides a top-detachable high-efficiency filter to solve the problem in the prior art that the air supply laminar flow ceiling needs to be completely removed when replacing the high-efficiency filter.

[0005] The embodiment of the present application provides a top-discharge type high-efficiency filter, including an outer frame and a filter element, and also includes:

[0006] A cover plate, wherein the outer frame is horizontally slidably arranged on the cover plate;

[0007] A driving rod is vertically slidably arranged on the cover plate, and the driving rod is parallel to the height direction of the outer frame. A driving protrusion is arranged on the side of the driving rod facing the outer frame, and a driven protrusion is arranged on the side of the outer frame facing the driving rod. Both the driving protrusion and the driven protrusion have inclined surfaces, and the inclined surfaces of the driving protrusion and the driven protrusion contact each other. When the driving rod slides toward the cover plate, the driving protrusion squeezes the driven protrusion, so that the outer frame together with the filter element slides in a direction away from the driving rod, thereby making the outer frame stick to the air supply outlet of the air supply laminar flow ceiling.

[0008] In a possible implementation, a sliding block is provided on the side of the outer frame facing the cover plate, a sliding groove is provided on the cover plate, and the sliding block is slidably inserted in the sliding groove.

[0009] In a possible implementation, a spring is disposed in the slide groove, the spring is connected between the inner wall of the slide groove and the slider, and the spring provides elastic force for the outer frame to approach the driving rod.

[0010] In a possible implementation, a fixing cylinder is provided on the cover plate, and one end of the driving rod is slidably inserted in the fixing cylinder.

[0011] In a possible implementation, an axial screw hole is provided at one end of the driving rod inserted in the fixing cylinder, a screw rod is screwed into the screw hole, and a distal end of the screw rod extends from a side of the cover plate facing away from the fixing cylinder.

[0012] In a possible implementation, a retaining ring is provided at one end of the screw rod away from the driving rod, and the retaining ring is rotatably sleeved in a retaining groove inside the cover plate, so that the screw rod can only rotate in the circumferential direction and cannot move in the circumferential direction.

[0013] In a possible implementation, there are two driving rods, which are respectively disposed at two ends of the cover plate, and the outer frame is respectively provided with driven protrusions at both ends, and the driving protrusions on the two driving rods are respectively in contact with the driven protrusions at both ends of the outer frame.

[0014] In one possible implementation, the upper and lower ends of the driving rod are respectively provided with driving protrusions, and the upper and lower ends of the edge of one side of the outer frame are also respectively provided with driven protrusions, the driving protrusion at the upper end of the driving rod contacts the driven protrusion at the upper end of the edge of one side of the outer frame, and the driving protrusion at the lower end of the driving rod contacts the driven protrusion at the lower end of the edge of one side of the outer frame.

[0015] In a possible implementation, a mounting hole is provided at an edge of the cover plate, and the mounting hole is used for a mounting rod to pass through so as to connect the cover plate to the air supply laminar flow ceiling.

[0016] In a possible implementation, a sealing strip is provided on the surface of the cover plate that contacts the air supply laminar flow ceiling.

[0017] A top-discharging high-efficiency filter in this application has the following advantages:

[0018] With an independent installation structure, when the air supply laminar flow ceiling is installed on the ceiling of the clean room, the high-efficiency filter can be removed from the top of the air supply laminar flow ceiling. Maintenance personnel do not need to enter the clean room, and there is no need to remove the air supply laminar flow ceiling from the ceiling of the clean room. This not only shortens the operation time, but also greatly reduces the risk of clean room contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a top-discharge type high efficiency filter in a loosened state provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of a top-discharge type high efficiency filter in a tight state provided in an embodiment of the present application;

[0022] Figure 3 A three-dimensional structural diagram of a top-discharge type high efficiency filter installed in an air supply laminar flow ceiling provided in an embodiment of the present application;

[0023] Figure 4 An internal structural diagram of a top-discharge high-efficiency filter installed in an air supply laminar flow ceiling provided in an embodiment of the present application.

[0024] Explanation of the accompanying drawings: 100, cover plate; 110, fixing cylinder; 120, mounting hole; 130, screw; 200, outer frame; 210, slider; 220, filter element; 230, driven protrusion; 300, driving rod; 310, driving protrusion; 400, ceiling shell; 410, air outlet; 420, baffle; 500, suspension rod; 600, high-efficiency filter. DETAILED DESCRIPTION

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

[0026] Figure 1-4 A schematic diagram of a top-dischargeable high-efficiency filter provided in an embodiment of the present application and installed in an air supply laminar flow ceiling. The present application provides a top-dischargeable high-efficiency filter, including an outer frame 200 and a filter element 220, and also includes:

[0027] The cover plate 100 and the outer frame 200 are horizontally slidably arranged on the cover plate 100;

[0028] The driving rod 300 is vertically slidably arranged on the cover plate 100, and the driving rod 300 is parallel to the height direction of the outer frame 200. The driving rod 300 is provided with a driving protrusion 310 on the side facing the outer frame 200, and the outer frame 200 is provided with a driven protrusion 230 on the side facing the driving rod 300. The driving protrusion 310 and the driven protrusion 230 both have inclined surfaces, and the inclined surfaces of the driving protrusion 310 and the driven protrusion 230 contact each other. When the driving rod 300 slides toward the cover plate 100, the driving protrusion 310 squeezes the driven protrusion 230, so that the outer frame 200 slides together with the filter element 220 in the direction away from the driving rod 300, thereby making the outer frame 200 stick to the air supply port 410 of the air supply laminar ceiling.

[0029] Exemplarily, the filter element 220 is used to filter air, and its edge is fixedly connected to the inner side of the outer frame 200. The outer frame 200 can be made of metal. When the outer frame 200 is close to the air supply port 410, the filter element 220 will be opposite to the air supply port 410, so that the air entering from the air supply port 410 is filtered by the filter element 220 and then enters the air supply laminar flow ceiling and finally enters the clean room.

[0030] The air supply laminar flow ceiling in the present application includes a ceiling shell 400, the top of the ceiling shell 400 is suspended on the ceiling of the clean room through a suspension rod 500, and the distance between the outer top surface of the ceiling shell 400 and the ceiling of the clean room is greater than the height of the high-efficiency filter 600. During the replacement process, the maintenance personnel enter the interlayer space under the ceiling of the clean room where the air supply laminar flow ceiling is installed, remove the high-efficiency filter 600 from the top of the ceiling shell 400, move it upward, and then take it out from the top of the ceiling shell 400, and then reload the clean high-efficiency filter 600 into the ceiling shell 400. Specifically, a through hole matching the cover plate 100 is provided on the top surface of the ceiling shell 400, and the high-efficiency filter 600 can enter the interior of the ceiling shell 400 after being inserted from the through hole. When the cover plate 100 is fixed to the ceiling shell 400 by screws, the entire high-efficiency filter 600 is installed in the ceiling shell 400.

[0031] In the embodiment of the present application, the edge of the cover plate 100 is provided with a mounting hole 120, and the mounting hole 120 is used for the mounting rod to pass through, so as to connect the cover plate 100 to the air supply laminar flow ceiling. The ceiling shell 400 is also provided with a screw hole at a position corresponding to the mounting hole 120. When the cover plate 100 is tightly attached to the ceiling shell 400, the mounting hole 120 will be aligned with the screw hole, and the mounting rod will be screwed into the screw hole after passing through the mounting hole 120, thereby realizing a stable connection between the cover plate 100 and the ceiling shell 400.

[0032] Furthermore, the cover plate 100 is provided with a sealing strip on the surface in contact with the air supply laminar flow ceiling. At the same time, the air supply port 410 also needs to be provided with a sealing strip on the surface facing the inside of the ceiling shell 400, and the sealing strip is used to improve the sealing performance of the ceiling shell 400 and the outside air isolation, so as to prevent the outside air from polluting the air inside the ceiling shell 400.

[0033] In a possible embodiment, a slider 210 is provided on the side of the outer frame 200 facing the cover plate 100 , and a slide groove is provided on the cover plate 100 , and the slider 210 is slidably inserted in the slide groove.

[0034] For example, in addition to the above-mentioned sliding installation method, the positions of the slider 210 and the slide groove can also be swapped, that is, the slider 210 is set on the cover plate 100, and the slide groove is set on the outer frame 200. When the slider is slidably inserted into the slide groove, the outer frame 200 and the filter element 220 can slide on the cover plate 100.

[0035] Furthermore, a spring is provided in the chute, and the spring is connected between the inner wall of the chute and the slider 210, and the spring provides elastic force for the outer frame 200 to approach the driving rod 300. The spring can be a spiral spring, and after the spring is provided, the outer frame 200 and the filter element 220 can be located on the cover plate 100 close to the driving rod 300 in a natural state, and then maintain a certain distance between the outer frame 200 and the air outlet 410, thereby reducing the resistance when the high-efficiency filter 600 is taken out or loaded.

[0036] In a possible embodiment, a fixing cylinder 110 is disposed on the cover plate 100 , and one end of the driving rod 300 is slidably inserted in the fixing cylinder 110 .

[0037] For example, the fixing cylinder 110 is a hollow cylinder with rectangular cross sections inside and outside, and therefore, the driving rod 300 is also a prismatic rod, and the size of its cross section matches the inside of the fixing cylinder 110. By using the fixing cylinder 110 and the driving rod 300 with rectangular cross sections, it can be ensured that the driving rod 300 can only slide axially inside the fixing cylinder 110, and will not rotate circumferentially.

[0038] Furthermore, an axial screw hole is provided at one end of the driving rod 300 inserted into the fixing cylinder 110, and a screw rod 130 is screwed into the screw hole, and the end of the screw rod 130 extends from the side of the cover plate 100 facing away from the fixing cylinder 110. A rotation groove may also be provided at one end of the screw rod 130 extending from the inside of the cover plate 100, and the rotation groove may be in various shapes such as a straight line, a cross, a triangle or a hexagon, so that maintenance personnel can use a screwdriver to rotate the screw rod 130, thereby sliding the driving rod 300 along the length direction, so as to achieve the purpose of loosening or tightening the outer frame 200.

[0039] Furthermore, the screw rod 130 is provided with a snap ring at one end away from the driving rod 300, and the snap ring is rotatably sleeved in the snap groove inside the cover plate 100, so that the screw rod 130 can only rotate in the circumferential direction and will not move in the circumferential direction. The screw rod 130 is a cylindrical rod, and a thread is only provided on the side surface of the end close to the driving rod 300, while the end facing away from the driving rod 300 is a smooth rod, and the snap ring is provided on the side surface of the smooth rod.

[0040] In a possible embodiment, there are two driving rods 300, and the two driving rods 300 are respectively arranged at both ends of the cover plate 100, and the outer frame 200 is respectively provided with driven protrusions 230 at both ends, and the driving protrusions 310 on the two driving rods 300 are respectively in contact with the driven protrusions 230 at both ends of the outer frame 200.

[0041] For example, by using two driving rods 300 , both ends of the outer frame 200 can be squeezed, thereby improving the uniformity of the pressing force applied to the outer frame 200 and making the sealing performance of the outer frame 200 and the air outlet 410 higher.

[0042] Furthermore, the upper and lower ends of the driving rod 300 are respectively provided with driving protrusions 310, and the upper and lower ends of the edge of one side of the outer frame 200 are also respectively provided with driven protrusions 230. The driving protrusion 310 at the upper end of the driving rod 300 contacts the driven protrusion 230 at the upper end of the edge of one side of the outer frame 200, and the driving protrusion 310 at the lower end of the driving rod 300 contacts the driven protrusion 230 at the lower end of the edge of one side of the outer frame 200.

[0043] The driving protrusion 310 and the driven protrusion 230 in the present application are both triangular prism-shaped protrusions, and the inclined surfaces of the two protrusions are in contact with each other. When the driving rod 300 drives the driving protrusion 310 to move toward the cover plate 100, under the action of the direction change of the inclined surface, the pressure of the driving protrusion 310 on the driven protrusion 230 toward the cover plate 100 will be converted to a horizontal direction. The pressure after the direction conversion will prompt the outer frame 200 and the filter element 220 to move toward the air outlet 410, and then converted into a clamping force of the outer frame 200 on the air outlet 410.

[0044] Furthermore, a baffle plate 420 is provided on the inner side surface of the ceiling housing 400 at a position directly opposite to the through hole for inserting the high-efficiency filter 600. When the high-efficiency filter 600 is inserted into the ceiling housing 400, the driving rod 300 will be held against the baffle plate 420. When the driving rod 300 moves toward the cover plate 100, it will apply pressure to the outer frame 200. Under the reaction force of the outer frame 200, the driving rod 300 will also be subjected to pressure facing away from the outer frame 200. After the baffle plate 420 is provided, the pressure will be applied to the baffle plate 420, and the driving rod 300 will maintain a stable sliding movement close to or away from the cover plate 100 without moving in other directions.

[0045] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A top-discharge high-efficiency filter, comprising an outer frame (200) and a filter element (220), characterized in that: Also includes: A cover plate (100), wherein the outer frame (200) is horizontally slidably arranged on the cover plate (100); A driving rod (300) is vertically slidably arranged on the cover plate (100), and the driving rod (300) is parallel to the height direction of the outer frame (200); the driving rod (300) is provided with a driving protrusion (310) on the side facing the outer frame (200); the outer frame (200) is provided with a driven protrusion (230) on the side facing the driving rod (300); the driving protrusion (310) and the driven protrusion (230) are both The drive protrusion (310) and the driven protrusion (230) have an inclined surface, and the inclined surfaces of the drive protrusion (310) and the driven protrusion (230) are in contact with each other. When the drive rod (300) slides toward the cover plate (100), the drive protrusion (310) presses the driven protrusion (230), so that the outer frame (200) and the filter element (220) slide in a direction away from the drive rod (300), thereby causing the outer frame (200) to stick to the air supply port (410) of the air supply laminar flow ceiling.

2. A top-discharge high efficiency filter according to claim 1, characterized in that: The outer frame (200) is provided with a sliding block (210) on the side facing the cover plate (100), the cover plate (100) is provided with a sliding groove, and the sliding block (210) is slidably inserted in the sliding groove.

3. A top-discharge high efficiency filter according to claim 2, characterized in that: A spring is arranged in the slide groove, and the spring is connected between the inner wall of the slide groove and the slider (210). The spring provides elastic force for the outer frame (200) to approach the driving rod (300).

4. A top-discharge high efficiency filter according to claim 1, characterized in that: A fixing cylinder (110) is provided on the cover plate (100), and one end of the driving rod (300) is slidably inserted into the fixing cylinder (110).

5. A top-discharge type high efficiency filter according to claim 4, characterized in that: An axial screw hole is provided at one end of the driving rod (300) inserted into the interior of the fixing cylinder (110), a screw rod (130) is screwed into the screw hole, and the end of the screw rod (130) extends out from a side of the cover plate (100) facing away from the fixing cylinder (110).

6. A top-discharge type high efficiency filter according to claim 5, characterized in that: The screw rod (130) is provided with a snap ring at one end away from the driving rod (300), and the snap ring is rotatably sleeved in a snap groove inside the cover plate (100), so that the screw rod (130) can only rotate in the circumferential direction and cannot move in the circumferential direction.

7. A top-discharge type high efficiency filter according to claim 1, characterized in that: There are two driving rods (300), and the two driving rods (300) are respectively arranged at two ends of the cover plate (100), and the outer frame (200) is respectively provided with the driven protrusions (230) at two ends, and the driving protrusions (310) on the two driving rods (300) are respectively in contact with the driven protrusions (230) at two ends of the outer frame (200).

8. A top-discharge type high efficiency filter according to claim 1, characterized in that: The driving protrusion (310) is respectively arranged at the upper end and the lower end of the driving rod (300), and the driven protrusion (230) is also respectively arranged at the upper end and the lower end of the edge of one side of the outer frame (200). The driving protrusion (310) at the upper end of the driving rod (300) contacts the driven protrusion (230) at the upper end of the edge of one side of the outer frame (200), and the driving protrusion (310) at the lower end of the driving rod (300) contacts the driven protrusion (230) at the lower end of the edge of one side of the outer frame (200).

9. A top-discharge type high efficiency filter according to claim 1, characterized in that: The edge of the cover plate (100) is provided with a mounting hole (120), and the mounting hole (120) is used for a mounting rod to pass through so as to connect the cover plate (100) to the air supply laminar flow ceiling.

10. The top-discharge type high efficiency filter according to claim 1, characterized in that: The cover plate (100) is provided with a sealing strip on the surface in contact with the air supply laminar flow ceiling.

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