Sand-proof dust-filtering shutter

Abstract

The utility model provides a sand-preventing dust-filtering shutter, which comprises a sand-preventing fixed blade and an outer frame for fixedly installing the sand-preventing fixed blade, the sand-preventing fixed blade comprises a flow-dividing baffle and a sand-blocking water-blocking plate, the flow-dividing baffle is vertically distributed along the geometric center of the sand-blocking water-blocking plate, and two sand-sand flow-dividing cavities are formed at the joint of the flow-dividing baffle and the sand-blocking water-blocking plate; the two ends, away from the flow dividing baffle, of the sand blocking water baffle are bent in the outlet direction of the wind and sand flow dividing cavity to form flanges correspondingly. And an inclined shape is formed between each flange and the sand and water blocking plate so as to facilitate sand and water discharge. By providing the matching mode of the flow dividing baffle and the sand-blocking water baffle, wind and sand enter a room from the two wind and sand flow dividing cavities, through the flow dividing and blocking effects of the flow dividing baffle, on one hand, the speed of the wind and sand is reduced, and under the effect of gravity, the wind and sand slowly fall to the lower frame and are discharged outdoors.

Description

Technical Field

[0001] The utility model relates to the technical field of sand-proof and dust-filtering shutter blades, in particular to a sand-proof and dust-filtering shutter. Background Art

[0002] As we all know, in order to prevent components such as transformers from being damaged by contact with foreign objects, an independent electrical cabinet is generally set up to place the relevant components in the electrical cabinet and isolate them from the outside world, thereby preventing foreign objects from contacting the components in the electrical cabinet, protecting the components and avoiding accidents of electric shock. Although these electrical cabinets can protect the components inside them, the components will generate a lot of heat when they are powered on, and the electrical cabinet is generally set to a sealed structure. Therefore, the heat generated by the components when powered on cannot be quickly discharged from the outside of the electrical cabinet. The heat will continue to accumulate and the temperature inside the electrical cabinet will continue to rise, thereby affecting the service life of the components, and in severe cases, it will also cause fires.

[0003] In order to facilitate the heat dissipation in the electrical cabinet, the existing electrical cabinet is generally provided with ventilation openings on the side walls thereof, so that the heat can be discharged to the outside of the electrical cabinet through the ventilation windows, thereby achieving the purpose of heat dissipation.

[0004] However, some existing electrical cabinets are generally arranged outdoors. If ventilation holes are opened on the side walls of the electrical cabinets, rainwater and dust from the outside can easily enter the interior of the electrical appliances through the ventilation holes and damage components.

[0005] Therefore, people generally install ventilation shutters for dust and water prevention at the ventilation openings. These ventilation shutters generally include an outer frame, on which is hinged a shutter body that can rotate relative to the outer frame. The shutter body is provided with many blades, and a filter is compounded on the side wall of the shutter body facing the inside of the electrical cabinet. The filter is generally fastened to the shutter body by bolts or a number of deformable metal sheets are provided around the shutter body. When the filter is tightly attached to the shutter body, the above-mentioned metal sheets are bent to clamp the filter to the shutter body. The shutter body has a relatively complex structure and a high manufacturing cost. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a sand-proof and dust-filtering shutter to solve the problems raised in the above-mentioned background technology. The present invention proposes a matching mode of a diversion baffle and a sand-blocking and water-blocking plate, so that wind and sand enter the room from two wind and sand diversion chambers respectively. After the diversion and blocking effects of the diversion baffles, on the one hand, the speed of the wind and sand is slowed down, and under the action of gravity, the wind and sand slowly fall to the lower frame and are discharged to the outside; on the other hand, since the wind and sand entering the two wind and sand diversion chambers will not collide with each other to form vortices, a large amount of wind and sand will be retained in the cavity and cannot be quickly discharged to the outside, thereby solving the problems in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: A sand-proof dust filtering shutter, comprising sand-proof fixed blades and an outer frame for fixing the sand-proof fixed blades, the sand-proof fixed blades comprising a diverter baffle and a sand-blocking and water-blocking plate, the diverter baffle is vertically distributed along the geometric center of the sand-blocking and water-blocking plate, and two wind and sand diversion cavities are formed at the connection with the sand-blocking and water-blocking plate; the two ends of the sand-blocking and water-blocking plate are away from the diverter baffle, and are respectively bent along the outlet direction of the wind and sand diversion cavity to form a retaining edge; each of the retaining edges is inclined with the sand-blocking and water-blocking plate to facilitate sand and water discharge.

[0008] Compared with the prior art, the utility model has the following beneficial effects:

[0009] The utility model proposes a matching mode of the diversion baffle and the sand and water blocking plate, so that the wind and sand enter the room from the two wind and sand diversion cavities respectively. After the diversion and blocking effects of the diversion baffle, on the one hand, the speed of the wind and sand is slowed down, and under the action of gravity, the wind and sand slowly fall to the lower frame and are discharged outdoors; on the other hand, because the wind and sand entering the two wind and sand diversion cavities will not collide with each other to form eddies, causing a large amount of wind and sand to be retained in the cavity and unable to be quickly discharged outdoors, the problems in the prior art are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0011] Figure 1 This is a schematic diagram of the overall structural interface of the anti-sand and dust filtering shutters proposed in the embodiment of the utility model;

[0012] Figure 2 It is a schematic side cross-sectional view of the structure of the sand-proof fixed blade proposed in the embodiment of the utility model;

[0013] Figure 3It is a side cross-sectional schematic diagram of the anti-sand regulating blade structure proposed in the embodiment of the utility model;

[0014] Figure 4 It is a side cross-sectional schematic diagram of the embedded improved structure when the sand-proof fixed blade and the outer frame are installed in the embodiment of the utility model;

[0015] Figure 5 A schematic diagram of the flow direction of wind and sand in the sand-proof fixed blades proposed in the embodiment of the utility model;

[0016] Figure 6 This is a schematic diagram of the sand-proof fixed blades proposed in the embodiment of the utility model changing the airflow direction multiple times;

[0017] Figure 7 The overall structure of the sand-proof and dust-filtering shutter proposed in the embodiment of the utility model is shown in a top view Figure 1 ;

[0018] Figure 8 The overall structure of the sand-proof and dust-filtering shutter proposed in the embodiment of the utility model is shown in a top view Figure 2 .

[0019] Reference numerals:

[0020] 1-sand-proof fixed blade, 11-diversion baffle, 12-sand-water-blocking baffle, 13-left wind-sand diversion cavity, 14-right wind-sand diversion cavity, 15-retaining edge, 16-small folding edge;

[0021] 2-anti-sand regulating blade, 21-rubber sealing strip, 22-linkage shaft jack, 23-polyurethane thermal insulation foam material;

[0022] 3-outer frame, 31-water discharge bottom wall;

[0023] 4-Removable and washable filter. DETAILED DESCRIPTION

[0024] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0025] like Figure 1-8As shown, as the first embodiment of the utility model, the utility model provides a technical solution: a sand-proof dust filtering shutter, made of aluminum alloy, the surface of which is anodized or electrostatically sprayed, and sprayed with an acid-resistant, alkali-resistant, wear-resistant, corrosion-resistant, and high-temperature resistant organic or inorganic coating layer. When implemented specifically, it includes a sand-proof fixed blade 1, a sand-proof regulating blade 2, and an outer frame 3 for fixing the sand-proof fixed blade. The sand-proof fixed blade 1 includes a diverter baffle 11 and a sand-blocking water retaining plate 12. It should be noted that the diverter baffle 11 is vertically distributed along the geometric center of the sand-blocking water retaining plate 12, and is connected to the sand-blocking water retaining plate. Two wind and sand diversion chambers are formed at the joint: i.e., the left wind and sand diversion chamber 13 and the right wind and sand diversion chamber 14; the two ends of the sand-blocking and water-blocking plates away from the diversion baffles are bent along the outlet direction of the wind and sand diversion chamber to form a retaining edge 15; each retaining edge 15 is inclined to the sand-blocking and water-blocking plates 12 to facilitate sand and water discharge; the anti-sand regulating blades 2 are fixedly installed between the anti-sand fixed blades 1 and the outer frame 3, the anti-sand regulating blades 2 are hollow inside, and the hollow inside is filled with polyurethane thermal insulation foam material 23; the anti-sand regulating blades 2 are movably connected to the external linkage rod through the linkage shaft socket 22 to form an upper and lower angle opening and closing.

[0026] Based on the above technical concept, it can be understood that a small folded edge 16 is fixedly installed at the end of the retaining edge 15 away from the sand-blocking and water-blocking plate 12, and the small folded edge 16 is bent along the inner surface of the retaining edge 15 into the wind and sand diversion cavity to buffer the impact speed of external wind and sand and rainwater. It can be understood that by proposing a matching mode of the diversion baffle 11 and the sand-blocking and water-blocking plate 12, the wind and sand enter the room from the two wind and sand diversion cavities respectively, and the diversion and blocking effect of the diversion baffle 11, on the one hand, slows down the speed of the wind and sand, and under the action of gravity, slowly falls to the lower frame and is discharged to the outside; on the other hand, since the wind and sand entering the two wind and sand diversion cavities will not collide with each other to form a vortex, a large amount of wind and sand will be retained in the cavity and cannot be quickly discharged to the outside, thereby solving the problems in the prior art.

[0027] In one embodiment of the utility model, the proposed outer frame 3 includes a side frame, an upper frame and a lower frame. During the specific implementation, the side frame, the upper frame and the lower frame are connected end to end in sequence and spliced ​​into a whole plate by an L-shaped corner piece made of stainless steel and an L-shaped corner piece made of nylon. A drainage bottom wall 31 for draining water and sand is fixedly installed on the side wall of the lower frame by screws. The cross-sectional shape of the drainage bottom wall 31 after being connected to the side wall of the lower frame is a right-angled fan or a right-angled triangle. The inclination of the inclined surface of the drainage bottom wall is 30° to 60°, and the inclined surface of the drainage bottom wall 31 is parallel to the inclined surface of the retaining edge 15 to facilitate sand and water discharge.

[0028] In one embodiment of the utility model, the proposed sand-proof fixed blade 1 is formed by extrusion of aluminum alloy, and the diverter baffle 11, the sand-proof and water-proof baffle 12, the retaining edge 15 and the small folding edge 16 are integrally formed by extrusion of aluminum alloy.

[0029] In one embodiment of the utility model, in order to further prevent rainwater and dust from the outside from entering the room, it is proposed that a detachable and washable filter 4 is embedded in the connection between the anti-sand adjusting blade and the outer frame. The detachable and washable filter 4 includes a primary filter, a medium efficiency filter and a high efficiency filter. At the same time, it is also proposed that a rubber sealing strip 21 is embedded in the connection between the anti-sand adjusting blade 1 and the outer frame 3, and the connection between the anti-sand adjusting blade 2 and the anti-sand fixed blade 1 for sealing and waterproofing.

[0030] In one embodiment of the utility model, in order to apply the utility model to different products, a detachable flange can be installed on the outer edge of the outer frame, and the user can install it through the detachable flange according to the specific use environment.

[0031] In one embodiment of the utility model, since the high-voltage electrical room or the place is acid-corrosive, chemical, flammable and explosive, it is inconvenient for maintenance personnel to enter the room and they can only perform maintenance outdoors. For this reason, the utility model can continue to propose an outward-opening anti-sand and dust-filtering shutter in the above scheme to adapt to different usage scenarios. In the specific implementation, it is only necessary to install the anti-sand and dust-filtering shutter on the frame of the peripheral device through a stainless steel sliding support.

[0032] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A sand-proof and dust-filtering shutter, characterized in that: It includes a sand-proof fixed blade, a sand-proof regulating blade, and an outer frame for fixing the sand-proof fixed blade. The sand-proof fixed blade includes a diversion baffle and a sand-proof and water-proof baffle. The diversion baffle is vertically distributed along the geometric center of the sand-blocking and water-blocking plate, and two wind-sand diversion cavities are formed at the connection with the sand-blocking and water-blocking plate; the two ends of the sand-blocking and water-blocking plate away from the diversion baffle are respectively bent along the outlet direction of the wind-sand diversion cavity to form a retaining edge; each retaining edge is inclined with the sand-blocking and water-blocking plate to facilitate sand and water discharge; The anti-sand regulating blade is fixedly installed between the anti-sand fixed blade and the outer frame. The interior of the anti-sand regulating blade is hollow, and the hollow interior is filled with polyurethane thermal insulation foam material; the anti-sand regulating blade is movably connected to the external linkage rod through the linkage shaft socket to form an upper and lower angle opening and closing, and a detachable and washable filter is embedded in the connection between the anti-sand regulating blade and the outer frame.

2. The anti-sand and dust filtering shutter according to claim 1, characterized in that: A small folding edge is fixedly installed at the end of the retaining edge away from the sand and water blocking plate. The small folding edge is bent along the inner surface of the retaining edge into the wind and sand diversion cavity to buffer the impact speed of external wind and sand and rainwater.

3. The anti-sand and dust filtering shutter according to claim 1, characterized in that: The outer frame includes a side frame, an upper frame and a lower frame, wherein: The side frame, upper frame and lower frame are connected end to end in sequence and spliced ​​into a whole board through an L-shaped corner piece made of stainless steel and an L-shaped corner piece made of nylon, wherein a drainage bottom wall for draining water and sand is fixedly installed on the side wall of the lower frame by screws, and the cross-sectional shape of the drainage bottom wall after being connected to the side wall of the lower frame is a right-angled fan or a right-angled triangle, and the inclination of the inclined surface of the drainage bottom wall is 30° to 60°.

4. The anti-sand and dust filtering shutter according to claim 3, characterized in that: The inclined surface of the water discharge bottom wall is parallel to the inclined surface of the retaining edge, so as to facilitate the discharge of sand and water.

5. The anti-sand and dust filtering shutter according to claim 1, characterized in that: The sand-proof fixed blades are formed by extrusion of aluminum alloy, and the diversion baffle, sand-proof and water-proof baffle, baffle edge and small fold edge are formed by extrusion of aluminum alloy in one piece.

6. The anti-sand and dust filtering shutter according to claim 1, characterized in that: The detachable and washable filter comprises a primary filter, a medium filter and a high efficiency filter.

7. The anti-sand and dust filtering shutter according to claim 1, characterized in that: Rubber sealing strips are embedded in the connection between the anti-sand adjusting blades and the outer frame, and between the anti-sand adjusting blades and the anti-sand fixed blades for sealing and waterproofing.

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