Efficient filter and air supply laminar flow ceiling

Abstract

The invention discloses a high-efficiency filter and an air supply laminar flow ceiling, and relates to the technical field of air filtration. The high-efficiency filter comprises a filter main body, a mounting plate and a push-pull structure; the filter main body comprises a filter shell and a filter element; the mounting plate is fixedly connected with the upper side of the filter shell and protrudes outwards to form an outer edge, and a rectangular opening is formed in the middle of the mounting plate; the push-pull structure is in sliding connection with an internal groove in the side, facing the rectangular opening, of the mounting plate. The mounting plate is arranged on the upper side of the filter shell, and the mounting plate protrudes outwards to form the outer edge, so that the high-efficiency filter can be replaced from the upper part, and the pollution to the interior of the clean room when the high-efficiency filter is replaced from the lower part in the prior art is avoided; by arranging the push-pull structure, the air inlet of the filter can be exposed or shielded, and the risk that pollutants in the filter leak from the air inlet of the filter when the efficient filter is replaced is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air filtration, and in particular to a high-efficiency filter and an air supply laminar flow ceiling. Background Art

[0002] Air supply laminar flow ceiling is a device that uses high-efficiency filtration and laminar air supply technology to create a clean and sterile environment. High-efficiency filters are the core filtering part of air supply laminar flow ceilings and are used to ensure indoor air quality. High-efficiency filters and air supply laminar flow ceilings are suitable for a variety of clean rooms such as operating rooms, laboratories, clean wards, and dust-free workshops. Therefore, it is necessary to study high-efficiency filters and air supply laminar flow ceilings.

[0003] In the prior art, Chinese patent CN116293927A discloses a Class I clean operating room air supply ceiling, including a shell and a high-efficiency filter, wherein the shell is arranged on the ceiling of the operating room, and the high-efficiency filter is arranged in the shell; the high-efficiency filter includes a low-resistance area in the middle and high-resistance areas on both sides, wherein the low-resistance area corresponds to the operating table in the operating room in space. The device of the present invention has a good energy-saving effect, and can avoid the formation of air stagnation areas, which is conducive to improving the air quality inside the operating room.

[0004] At present, when a high-efficiency filter reaches a certain service life, maintenance personnel are generally required to replace the high-efficiency filter from under the laminar air flow ceiling in the clean room. If the operation is not standardized, it is easy to cause pollution to the inside of the clean room. However, the above-mentioned prior art has not studied or solved this problem. In addition, when replacing the high-efficiency filter, since the high-efficiency filter will be shaken, there is a risk of pollutants in the filter leaking from the air inlet of the filter. The above-mentioned prior art has not studied or solved this risk either. Summary of the invention

[0005] The present application provides a high-efficiency filter and an air supply laminar flow ceiling, which are used to solve the problem in the prior art that the high-efficiency filter is replaced from below the air supply laminar flow ceiling, which easily causes pollution to the interior of the clean room, and there is a risk of pollutants in the filter leaking from the air inlet of the filter when replacing the high-efficiency filter.

[0006] On the one hand, the present application provides a high-efficiency filter, including: a filter body, a mounting plate and a push-pull structure.

[0007] The filter body comprises a filter housing and a filter element. A filter air inlet is arranged in the middle of the top of the filter housing, and a filter air outlet is arranged in the middle of the bottom. The filter element is fixedly arranged inside the filter housing.

[0008] The mounting plate is fixedly connected to the upper side of the filter housing and has an outer edge protruding outwards. A rectangular opening is arranged in the middle of the mounting plate.

[0009] The push-pull structure is slidably connected to an inner groove of a side of the mounting plate facing the rectangular opening.

[0010] When the push-pull structure is opened, the rectangular opening of the mounting plate is opened, and the filter air inlet is exposed.

[0011] When the push-pull structure is closed, the rectangular opening of the mounting plate is closed and the air inlet of the filter is blocked.

[0012] In a possible implementation, the push-pull structure includes: a push-pull plate and a limiting column.

[0013] The limiting columns are fixedly arranged at two sides of the sliding direction of the push-pull plate and away from the position of the rectangular opening of the push-pull plate facing the mounting plate.

[0014] A plate sliding groove and a column sliding groove are arranged inside the side of the mounting plate facing the rectangular opening. The column sliding grooves are located on both sides of the plate sliding groove, and the column sliding grooves are not directly connected to the rectangular opening of the mounting plate.

[0015] The push-pull plate is slidably connected to the plate sliding groove, and the limiting column is slidably connected to the column sliding groove.

[0016] A side of the push-pull plate close to the rectangular opening of the mounting plate protrudes upwards with an upper edge.

[0017] When the limiting column slides to an end of the column sliding slot away from the rectangular opening of the mounting plate, the push-pull structure opens.

[0018] When the limiting column slides to one end of the column sliding slot close to the rectangular opening of the mounting plate, the push-pull structure is closed.

[0019] In a possible implementation manner, a handle is fixedly provided on the upper side of the mounting plate.

[0020] On the other hand, the present application provides an air supply laminar flow ceiling, comprising: a ceiling box, a ceiling and a high-efficiency filter, wherein the ceiling box passes through the ceiling and is fixedly connected to the ceiling.

[0021] The ceiling box body comprises a plurality of sub-box bodies which are fixedly connected to each other and distributed horizontally, and a high-efficiency filter is detachably installed inside each sub-box body.

[0022] A flow equalizing plate is fixedly installed at the bottom of each sub-box, and the shape of the flow equalizing plate is adapted to the shape of the filter air outlet of the high-efficiency filter.

[0023] In a possible implementation, an elastic sealing ring is sleeved on the outer side of the top of the filter housing of the high efficiency filter, and the upper side of the elastic sealing ring is sealed to the lower side of the outer edge of the mounting plate of the high efficiency filter.

[0024] The elastic sealing ring is a circular column structure with an upper portion protruding outward, and a lower outer wall of the elastic sealing ring is inclined inwardly and downwardly until it intersects with an inner wall of the elastic sealing ring.

[0025] The top of the sub-box body protrudes inwardly to form an inner edge, and the inner wall of the inner edge of the sub-box body and the lower outer wall of the elastic sealing ring have the same inclination slope.

[0026] When the lower outer wall of the elastic sealing ring fits with the inner wall of the inner edge of the sub-box, the bottom lower side of the filter housing of the high efficiency filter fits with the bottom upper side of the sub-box.

[0027] In a possible implementation, the bottom inner diameter of the inner edge of the sub-box is larger than the bottom outer diameter of the elastic sealing ring, and the top inner diameter of the inner edge of the sub-box is smaller than the maximum outer diameter of the elastic sealing ring excluding the upper protrusion.

[0028] In a possible implementation, a limiting enclosure plate is fixedly installed on the upper side of the bottom of the sub-box.

[0029] When the lower outer wall of the elastic sealing ring fits with the inner wall of the inner edge of the sub-box, the bottom outer wall of the filter housing of the high efficiency filter fits with the inner wall of the limiting enclosure.

[0030] In a possible implementation, the top of the inner wall of the limiting enclosure is lower than the top of the outer wall.

[0031] The top of the inner wall and the top of the outer wall of the limiting enclosure form an inclined surface.

[0032] In a possible implementation, the outer edge of the mounting plate of the high efficiency filter is made of iron material, and a magnetic strip is fixedly provided on the upper portion of the inner edge of the sub-box.

[0033] A high efficiency filter and air supply laminar flow ceiling in this application have the following advantages: By arranging a mounting plate on the upper side of the filter housing, the mounting plate has an outer edge protruding outward, so that the high-efficiency filter can be replaced from the top, avoiding the pollution of the interior of the clean room when the high-efficiency filter is replaced from the bottom in the prior art; by arranging a push-pull structure, the air inlet of the filter can be exposed or blocked, reducing the risk of pollutants in the filter leaking from the air inlet of the filter when replacing the high-efficiency filter.

[0034] The proposed push-pull structure includes: a push-pull plate and a limiting column, the push-pull plate is slidably connected to the plate sliding groove, the limiting column is slidably connected to the column sliding groove, the column sliding groove is not directly connected to the rectangular opening of the mounting plate, and the push-pull plate has an upper edge protruding upward on one side of the rectangular opening of the mounting plate. The push-pull plate is restricted by the column sliding groove and the upper edge of the push-pull plate, so that the push-pull plate will not completely enter the plate sliding groove or detach from the plate sliding groove, thereby improving the stability of the push-pull structure, and thereby improving the stability of the exposure and shielding of the filter air inlet.

[0035] A handle is fixedly provided on the upper side of the proposed mounting plate, which facilitates replacement of the high-efficiency filter from above, thereby improving the convenience of replacement.

[0036] The inner wall of the inner edge of the proposed sub-box and the lower outer wall of the elastic sealing ring have the same inclination slope, so that under the action of gravity, the elastic sealing ring and the inner edge of the sub-box fit tightly, thereby improving the sealing between the high-efficiency filter and the inner edge of the sub-box, thereby improving the air filtration effect.

[0037] The bottom inner diameter of the inner edge of the proposed sub-box is larger than the bottom outer diameter of the elastic sealing ring, and the top inner diameter of the inner edge of the sub-box is smaller than the maximum outer diameter of the elastic sealing ring excluding the upper protrusion. By leaving a margin for the contact between the elastic sealing ring and the inner edge of the sub-box, the elastic sealing ring is deformed under the action of gravity, thereby avoiding gaps and further improving the sealing effect.

[0038] The upper bottom side of the proposed sub-box is fixedly installed with a limiting enclosure plate, thereby improving the installation limiting effect of the high-efficiency filter.

[0039] The top of the inner wall of the proposed limiting enclosure is lower than the top of the outer wall, and the top of the inner wall of the limiting enclosure and the top of the outer wall form an inclined surface, so that when installing a new high-efficiency filter, the bottom of the high-efficiency filter can more easily reach the middle of the limiting enclosure, thereby improving the installation convenience of the high-efficiency filter.

[0040] The outer edge of the proposed mounting plate is made of iron material, and a magnetic strip is fixedly arranged on the upper part of the inner edge of the sub-box, so that the sealing effect between the high-efficiency filter and the inner edge of the sub-box is further improved through the effect of magnetic attraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 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.

[0042] Figure 1A schematic diagram of the main structure of a high-efficiency filter provided in an embodiment of the present application when the push-pull structure is opened; Figure 2 A schematic diagram of the main structure of a high efficiency filter provided in an embodiment of the present application when the push-pull structure is closed; Figure 3 A schematic diagram of the side view structure of a high efficiency filter provided in an embodiment of the present application; Figure 4 A schematic diagram of the connection structure between the mounting plate and the push-pull structure provided in an embodiment of the present application; Figure 5 A schematic diagram of the main structure of an air supply laminar flow ceiling provided in an embodiment of the present application; Figure 6 A schematic diagram of the top view of the laminar air flow ceiling provided in an embodiment of the present application.

[0043] Description of reference numerals: 1-high efficiency filter, 11-filter body, 111-filter housing, 112-filter air inlet, 113-filter air outlet, 114-filter element, 12-mounting plate, 13-push-pull structure, 14-elastic sealing ring, 15-handle, 131-push-pull plate, 132-limiting column, 133-plate sliding groove, 134-column sliding groove, 2-ceiling box, 3-ceiling, 21-flow equalizing plate, 22-limiting enclosure, 23-magnetic strip. DETAILED DESCRIPTION

[0044] 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.

[0045] Embodiment 1: like Figures 1 to 3 As shown, an embodiment of the present application provides a high-efficiency filter 1 , including: a filter body 11 , a mounting plate 12 and a push-pull structure 13 .

[0046] The filter body 11 includes a filter housing 111 and a filter element 114 . A filter air inlet 112 is disposed in the middle of the top of the filter housing 111 , and a filter air outlet 113 is disposed in the middle of the bottom. The filter element 114 is fixedly disposed inside the filter housing 111 .

[0047] The mounting plate 12 is fixedly connected to the upper side of the filter housing 111 and has an outer edge protruding outwards. A rectangular opening is provided in the middle of the mounting plate 12 .

[0048] The push-pull structure 13 is slidably connected to an inner groove of the mounting plate 12 on one side facing the rectangular opening.

[0049] When the push-pull structure 13 is opened, the rectangular opening of the mounting plate 12 is opened, and the filter air inlet 112 is exposed.

[0050] When the push-pull structure 13 is closed, the rectangular opening of the mounting plate 12 is closed, and the filter air inlet 112 is blocked.

[0051] Specifically, in this embodiment, two push-pull structures 13 are symmetrically arranged on two symmetrical sides of the rectangular opening. Figure 1 As shown, at this time, the two push-pull structures 13 are opened, and the filter air inlet 112 is exposed; Figure 2 As shown, at this time, the two push-pull structures 13 are closed, and the filter air inlet 112 is blocked. In other possible embodiments, only one push-pull structure 13 may be provided, as long as the push-pull structure 13 can realize the opening and closing of the rectangular opening.

[0052] The purpose of the mounting plate 12 having an outer edge protruding outward is to enable the high efficiency filter 1 to be installed and replaced from above, thereby providing upper support for the high efficiency filter 1 .

[0053] like Figure 4 As shown, exemplarily, the push-pull structure 13 includes: a push-pull plate 131 and a limiting column 132 .

[0054] The limiting posts 132 are fixedly disposed at two sides of the push-pull plate 131 in the sliding direction and away from the rectangular opening of the push-pull plate 131 facing the mounting plate 12 .

[0055] A plate sliding groove 133 and a column sliding groove 134 are provided inside the side of the mounting plate 12 facing the rectangular opening. The column sliding groove 134 is located on both sides of the plate sliding groove 133 , and the column sliding groove 134 is not directly connected to the rectangular opening of the mounting plate 12 .

[0056] The push-pull plate 131 is slidably connected to the plate sliding groove 133 , and the limiting column 132 is slidably connected to the column sliding groove 134 .

[0057] The push-pull plate 131 has an upper edge protruding upward on one side of the rectangular opening close to the mounting plate 12 .

[0058] When the limiting column 132 slides to the end of the column sliding slot 134 away from the rectangular opening of the mounting plate 12 , the push-pull structure 13 opens.

[0059] When the limiting column 132 slides to one end of the column sliding slot 134 close to the rectangular opening of the mounting plate 12 , the push-pull structure 13 is closed.

[0060] Specifically, Figure 4 As shown, at this time, the limiting column 132 slides to one end of the column sliding groove 134 close to the rectangular opening of the mounting plate 12, and the push-pull plate 131 is stretched to the maximum extent outside the plate sliding groove 133. Figure 2 It can be seen that at this time, the push-pull structure 13 is closed, that is, the upper edges of the push-pull plates 131 of the two push-pull structures 13 are in contact with each other.

[0061] In this embodiment, the working principle of the high efficiency filter 1 is as follows: the initial state of the high efficiency filter 1 is as follows: Figure 1 At this time, the push-pull structure 13 is opened, and the filter air inlet 112 is exposed. The air pre-filtered by the primary filter is transported to the filter air inlet 112 of the high-efficiency filter 1 through the fan and the air intake duct (the primary filter, the fan and the air intake duct all adopt the equipment and installation method of the existing technology, which will not be repeated here). The air passes through the filter air inlet 112, the filter element 114 and the filter air outlet 113 in turn to achieve the filtration of the air in the high-efficiency filter 1.

[0062] When the high efficiency filter 1 needs to be replaced, the fan is turned off, the air intake duct is removed from the filter air inlet 112 of the high efficiency filter 1, and then the push-pull structure 13 is closed, and the filter air inlet 112 is blocked. Figure 2 As shown, the top and the surrounding of the high efficiency filter 1 are then cleaned, and the high efficiency filter 1 is replaced from the top.

[0063] Embodiment 2: Exemplarily, a handle 15 is fixedly provided on the upper side of the mounting plate 12 .

[0064] Specifically, in this embodiment, two handles 15 are symmetrically fixedly arranged on the upper side of the mounting plate 12, respectively located on both sides of the rectangular opening, so as to facilitate the replacement of the high efficiency filter 1 from the top. In other possible embodiments, other numbers of handles 15 may also be arranged. The other structures of Embodiment 2 are consistent with those of Embodiment 1.

[0065] Embodiment 3: like Figures 5 and 6 As shown, the embodiment of the present application also provides an air supply laminar flow ceiling, including: a ceiling box 2, a ceiling 3 and a high-efficiency filter 1, wherein the ceiling box 2 passes through the ceiling 3 and is fixedly connected to the ceiling 3.

[0066] The ceiling box 2 includes a plurality of sub-boxes that are fixedly connected to each other and horizontally distributed, and a high-efficiency filter 1 is detachably installed inside each sub-box.

[0067] A flow balancing plate 21 is fixedly installed at the bottom of each sub-box, and the shape of the flow balancing plate 21 is adapted to the shape of the filter air outlet 113 of the high efficiency filter 1 .

[0068] Specifically, in this embodiment, the ceiling box 2 includes four sub-boxes, which are distributed in a two-by-two pattern. In other possible embodiments, sub-boxes of other numbers and distribution patterns may also be provided.

[0069] Specifically, in this embodiment, the working principle of the air supply laminar flow ceiling is as follows: Figure 5 As shown, Figure 5 The high efficiency filter 1 on the right half is installed inside the right sub-box. Figure 5 The push-pull structure 13 of the high-efficiency filter 1 on the right is opened, and the filter air inlet 112 is exposed. The air pre-filtered by the primary filter is transported to the filter air inlet 112 of the high-efficiency filter 1 through the fan and the air intake duct (the primary filter, the fan and the air intake duct all adopt the equipment and installation method of the existing technology, which will not be elaborated here). The air passes through the filter air inlet 112, the filter element 114 and the filter air outlet 113 in turn, realizing the filtration of the air in the high-efficiency filter 1, and leaves the air supply laminar ceiling from the flow equalizing plate 21 to enter the clean room.

[0070] When the high efficiency filter 1 needs to be replaced, the fan is turned off, the air intake duct is removed from the filter air inlet 112 of the high efficiency filter 1, and then the push-pull structure 13 is closed, the filter air inlet 112 is blocked, and then the top and surrounding of the high efficiency filter 1 are cleaned, and the high efficiency filter 1 is replaced from the top. Figure 5 As shown, Figure 5 The high efficiency filter 1 on the left half is being replaced at this time.

[0071] like Figure 6 As shown, at this time, the push-pull structure 13 of the high-efficiency filter 1 in the upper left corner (left front in a horizontal perspective) is closed, and the top and surrounding of the high-efficiency filter 1 can be cleaned and the high-efficiency filter 1 can be replaced from above. The push-pull structures 13 of the other three high-efficiency filters 1 are open, and the high-efficiency filters 1 need to be cleaned and replaced after the push-pull structures 13 are closed.

[0072] Embodiment 4: Exemplarily, an elastic sealing ring 14 is sleeved on the outer side of the top of the filter housing 111 of the high efficiency filter 1 , and the upper side of the elastic sealing ring 14 is sealed to the lower side of the outer edge of the mounting plate 12 of the high efficiency filter 1 .

[0073] The elastic sealing ring 14 is a circular column structure with an upper portion protruding outward, and a lower outer wall of the elastic sealing ring 14 is inclined inward and downward until it intersects with an inner wall of the elastic sealing ring 14 .

[0074] The top of the sub-box body protrudes inwardly to form an inner edge, and the inner wall of the inner edge of the sub-box body and the lower outer wall of the elastic sealing ring 14 have the same inclination slope.

[0075] When the lower outer wall of the elastic sealing ring 14 fits with the inner wall of the inner edge of the sub-box, the bottom lower side of the filter housing 111 of the high efficiency filter 1 fits with the bottom upper side of the sub-box.

[0076] Specifically, the inner wall of the inner edge of the sub-box and the lower outer wall of the elastic sealing ring 14 have the same inclination slope, so that under the action of gravity, the elastic sealing ring 14 fits tightly with the inner edge of the sub-box, thereby improving the sealing between the high-efficiency filter 1 and the inner edge of the sub-box, thereby improving the air filtration effect.

[0077] The difference between Example 4 and Example 3 is that Example 4 is provided with an elastic sealing ring 14 and the inner edge of the top of the sub-box, and the other structures are consistent with Example 3.

[0078] Embodiment 5: Exemplarily, the bottom inner diameter of the inner edge of the sub-box is larger than the bottom outer diameter of the elastic sealing ring 14, and the top inner diameter of the inner edge of the sub-box is smaller than the maximum outer diameter of the elastic sealing ring 14 excluding the upper protrusion.

[0079] Specifically, in Example 5, by leaving a margin for the contact between the elastic sealing ring 14 and the inner edge of the sub-box, the elastic sealing ring 14 is deformed under the action of gravity, avoiding gaps and further improving the sealing effect. The other structures of Example 5 are consistent with those of Example 4.

[0080] Embodiment 6: Exemplarily, a limiting enclosure plate 22 is fixedly mounted on the upper side of the bottom of the sub-box.

[0081] When the lower outer wall of the elastic sealing ring 14 fits with the inner wall of the inner edge of the sub-box, the bottom outer wall of the filter housing 111 of the high efficiency filter 1 fits with the inner wall of the limiting enclosure 22 .

[0082] Specifically, in Example 6, by providing the limiting enclosure 22 , the high efficiency filter 1 is limited by the limiting enclosure 22 when installed in the sub-box, thereby improving the installation limiting effect of the high efficiency filter 1 .

[0083] Exemplarily, the top of the inner wall of the limiting enclosure 22 is lower than the top of the outer wall.

[0084] The top of the inner wall and the top of the outer wall of the limiting enclosure 22 form an inclined surface.

[0085] Specifically, in Example 6, a slope is formed by the top of the inner wall and the top of the outer wall of the limiting enclosure 22, so that when a new high-efficiency filter 1 is installed, the bottom of the high-efficiency filter 1 can more easily reach the middle of the limiting enclosure 22, thereby improving the installation convenience of the high-efficiency filter 1.

[0086] The difference between Example 6 and Example 4 is that Example 6 is provided with a limiting enclosure 22, and the other structures are consistent with Example 4.

[0087] Embodiment 7: Exemplarily, the outer edge of the mounting plate 12 of the high efficiency filter 1 is made of iron material, and a magnetic attraction strip 23 is fixedly provided on the upper part of the inner edge of the sub-box.

[0088] Specifically, in Example 7, the sealing effect between the high efficiency filter 1 and the inner edge of the sub-box is further improved by the effect of magnetic attraction. The other structures of Example 7 are consistent with those of Example 4.

[0089] The high efficiency filter 1 of the air supply laminar flow ceiling in Examples 3 to 7 all adopts the high efficiency filter 1 of Example 2.

[0090] In the embodiment of the present application, a mounting plate 12 is provided on the upper side of the filter housing 111. The mounting plate 12 has an outer edge protruding outward, so that the high-efficiency filter 1 can be replaced from above, avoiding the contamination of the interior of the clean room when the high-efficiency filter 1 is replaced from below in the prior art; by providing a push-pull structure 13, the filter air inlet 112 can be exposed or blocked, reducing the risk of pollutants in the filter leaking from the filter air inlet 112 when replacing the high-efficiency filter 1.

[0091] The proposed push-pull structure 13 includes: a push-pull plate 131 and a limiting column 132. The push-pull plate 131 is slidably connected to the plate sliding groove 133, and the limiting column 132 is slidably connected to the column sliding groove 134. The column sliding groove 134 is not directly connected to the rectangular opening of the mounting plate 12. The push-pull plate 131 has an upper edge protruding upward on one side of the rectangular opening of the mounting plate 12. The push-pull plate 131 is restricted by the column sliding groove 134 and the upper edge of the push-pull plate 131, so that the push-pull plate 131 will not completely enter the plate sliding groove 133 or detach from the plate sliding groove 133, thereby improving the stability of the push-pull structure 13, and thereby improving the stability of exposing and blocking the filter air inlet 112.

[0092] A handle 15 is fixedly provided on the upper side of the proposed mounting plate 12, so as to facilitate replacement of the high efficiency filter 1 from above and improve the convenience of replacement.

[0093] The inner wall of the inner edge of the proposed sub-box and the lower outer wall of the elastic sealing ring 14 have the same inclination slope, so that under the action of gravity, the elastic sealing ring 14 fits tightly with the inner edge of the sub-box, thereby improving the sealing between the high-efficiency filter 1 and the inner edge of the sub-box, thereby improving the air filtration effect.

[0094] The bottom inner diameter of the inner edge of the proposed sub-box is larger than the bottom outer diameter of the elastic sealing ring 14, and the top inner diameter of the inner edge of the sub-box is smaller than the maximum outer diameter of the elastic sealing ring 14 excluding the upper protrusion. By leaving a margin for the contact between the elastic sealing ring 14 and the inner edge of the sub-box, the elastic sealing ring 14 is deformed under the action of gravity, thereby avoiding gaps and further improving the sealing effect.

[0095] The upper bottom side of the proposed sub-box is fixedly mounted with a limiting enclosure plate 22 , thereby improving the installation limiting effect of the high efficiency filter 1 .

[0096] The top of the inner wall of the proposed limiting enclosure 22 is lower than the top of the outer wall, and the top of the inner wall of the limiting enclosure 22 and the top of the outer wall form a slope, so that when installing a new high-efficiency filter 1, the bottom of the high-efficiency filter 1 can more easily reach the middle of the limiting enclosure 22, thereby improving the installation convenience of the high-efficiency filter 1.

[0097] The outer edge of the proposed mounting plate 12 is made of iron material, and a magnetic strip 23 is fixedly provided on the upper portion of the inner edge of the sub-box, which further improves the sealing effect between the high-efficiency filter 1 and the inner edge of the sub-box through the effect of magnetic attraction.

[0098] Although the preferred embodiments of the present application have been described, those skilled in the art may make other 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.

[0099] 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 high efficiency filter, characterized in that: include: Filter body, mounting plate and push-pull structure; The filter body comprises a filter housing and a filter element, a filter air inlet is arranged in the middle of the top of the filter housing, a filter air outlet is arranged in the middle of the bottom, and the filter element is fixedly arranged inside the filter housing; The mounting plate is fixedly connected to the upper side of the filter housing and has an outer edge protruding outwards, and a rectangular opening is provided in the middle of the mounting plate; The push-pull structure is slidably connected to the inner groove of the side of the mounting plate facing the rectangular opening; When the push-pull structure is opened, the rectangular opening of the mounting plate is opened, and the filter air inlet is exposed; When the push-pull structure is closed, the rectangular opening of the mounting plate is closed and the air inlet of the filter is blocked.

2. A high efficiency filter according to claim 1, characterized in that: The push-pull structure comprises: a push-pull plate and a limiting column; The limiting columns are fixedly arranged on both sides of the sliding direction of the push-pull plate and away from the position of the rectangular opening of the push-pull plate facing the mounting plate; A plate sliding groove and a column sliding groove are provided inside the side of the mounting plate facing the rectangular opening, the column sliding grooves are located on both sides of the plate sliding groove, and the column sliding grooves are not directly connected to the rectangular opening of the mounting plate; The push-pull plate is slidably connected to the plate sliding groove, and the limit column is slidably connected to the column sliding groove; The push-pull plate has an upper edge protruding upward on one side of the rectangular opening close to the mounting plate; When the limiting column slides to the end of the column sliding slot away from the rectangular opening of the mounting plate, the push-pull structure opens; When the limiting column slides to one end of the column sliding slot close to the rectangular opening of the mounting plate, the push-pull structure is closed.

3. A high efficiency filter according to claim 1, characterized in that: A handle is fixedly arranged on the upper side of the mounting plate.

4. A laminar air flow ceiling, characterized in that: include: A ceiling box, a ceiling and a high efficiency filter according to any one of claims 1 to 3, wherein the ceiling box passes through the ceiling and is fixedly connected to the ceiling; The ceiling box body includes a plurality of sub-box bodies that are fixedly connected to each other and horizontally distributed, and a high-efficiency filter is detachably installed inside each sub-box body; A flow equalizing plate is fixedly installed at the bottom of each sub-box, and the shape of the flow equalizing plate is adapted to the shape of the filter air outlet of the high-efficiency filter.

5. The laminar air flow ceiling according to claim 4, characterized in that: An elastic sealing ring is sleeved on the outer side of the top of the filter housing of the high efficiency filter, and the upper side of the elastic sealing ring is sealed and fitted with the lower side of the outer edge of the mounting plate of the high efficiency filter; The elastic sealing ring is a circular column structure with an upper portion protruding outward, and the lower outer wall of the elastic sealing ring is inclined inward and downward until it intersects with the inner wall of the elastic sealing ring; The top of the sub-box body protrudes inwardly to form an inner edge, and the inner wall of the inner edge of the sub-box body and the lower outer wall of the elastic sealing ring have the same inclination slope; When the lower outer wall of the elastic sealing ring fits with the inner wall of the inner edge of the sub-box, the bottom lower side of the filter housing of the high efficiency filter fits with the bottom upper side of the sub-box.

6. The laminar air flow ceiling according to claim 5, characterized in that: The bottom inner diameter of the inner edge of the sub-box is larger than the bottom outer diameter of the elastic sealing ring, and the top inner diameter of the inner edge of the sub-box is smaller than the maximum outer diameter of the elastic sealing ring excluding the upper protrusion.

7. The laminar air flow ceiling according to claim 5, characterized in that: A limiting enclosure plate is fixedly installed on the upper side of the bottom of the sub-box; When the lower outer wall of the elastic sealing ring fits with the inner wall of the inner edge of the sub-box, the bottom outer wall of the filter housing of the high efficiency filter fits with the inner wall of the limiting enclosure.

8. The laminar air flow ceiling according to claim 7, characterized in that: The top of the inner wall of the limiting enclosure is lower than the top of the outer wall; The top of the inner wall and the top of the outer wall of the limiting enclosure form an inclined surface.

9. The laminar air flow ceiling according to claim 5, characterized in that: The outer edge of the mounting plate of the high efficiency filter is made of iron material, and a magnetic attraction strip is fixedly arranged on the upper part of the inner edge of the sub-box.

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