An air filter with color indication

Abstract

The utility model discloses an air filter with color indication, including filter body, the filter body is set up and is used for placing filter core's placement groove, the placement groove is covered with gland, the placement groove is a pair, the filter body is set up and is connected with a pair of placement groove's first sliding slot, the first sliding slot is slidably connected with the sealing plate, when the sealing plate is sliding in the first sliding slot, can block any one placement groove, the sealing plate is fixedly connected with spanner, the filter body is set up and is matched with the second sliding slot of spanner, the second sliding slot and first sliding slot are connected. The utility model discloses an air filter with color indication, when replacing filter core, do not need to close filter body, thereby guarantee the continuous supply and the stability of positive pressure state of clean room air, avoid the risk of outside contaminated air invasion because of shutdown replacement filter core.

Description

Technical Field

[0001] This utility model relates to the field of air filtration equipment technology, specifically an air filter with color indication. Background Technology

[0002] Air filters use filters to trap harmful substances such as dust, pollen, and hair in the air, providing users with cleaner air. In actual use, the filter element on the air filter needs to be replaced regularly, especially in clean rooms such as biological laboratories and intensive care units where high levels of air cleanliness and positive pressure need to be maintained, the filter element needs to be replaced more frequently.

[0003] Traditional air filters typically require shutdown when the outermost filter element is replaced. This process stops the supply of new clean air to the cleanroom, causing the cleanroom to temporarily lose positive pressure. This allows dusty outside air to enter the cleanroom, severely affecting its air quality.

[0004] Therefore, in order to address the aforementioned technical problems, it is necessary to provide an air filter with color indication. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an air filter with color indication to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a specific embodiment of this utility model provides an air filter with color indication, including a filter body. The filter body has a placement groove for placing a filter element, and a pressure cap is closed on the placement groove. There is a pair of placement grooves. The filter body has a first sliding groove that communicates with the pair of placement grooves. A sealing plate is slidably connected in the first sliding groove. When the sealing plate slides in the first sliding groove, it can block either placement groove. A wrench is fixedly connected to the sealing plate. The filter body has a second sliding groove that matches the wrench. The second sliding groove communicates with the first sliding groove. The wrench is slidably connected in the second sliding groove.

[0007] In one or more embodiments of this utility model, a fixed box is fixedly connected to the wrench, a slider is slidably connected inside the fixed box, a pressure post and a pin are fixedly connected to the slider, the pressure post penetrates the upper wall of the fixed box and is slidably connected to the fixed box, the pin penetrates the lower wall of the fixed box and is slidably connected to the fixed box, and a pair of third slots matching the pins are provided on the filter body.

[0008] In one or more embodiments of this utility model, a spring is fixedly connected to one end of the slider near the pin, and the other end of the spring away from the slider is fixedly connected to the lower wall of the fixed box.

[0009] In one or more embodiments of this utility model, a fixing plate is fixedly connected to the lower wall of the fixing box, a first hinge post is fixedly connected to the fixing plate, a connecting plate is rotatably connected to the first hinge post, a second hinge post is rotatably connected to the connecting plate, a slide rail matching the second hinge post is provided on the slider, the second hinge post is slidably connected in the slide rail, and the slide rail is provided with a locking position and an unlocking position.

[0010] In one or more embodiments of this utility model, when the second hinge post is in the locked position, the pin is inserted into the third slot.

[0011] In one or more embodiments of this utility model, the pin is away from the filter body when the second hinge post is in the unlocked position.

[0012] In one or more embodiments of this utility model, a pair of first inserts are fixedly connected to the cover, a first slot matching the first inserts is provided on the wall of the placement groove, an elastic plate is fixedly connected to the end of the cover away from the first inserts, and a slot matching the elastic plate is provided on the wall of the placement groove.

[0013] In one or more embodiments of this utility model, the elastic plate protrudes from the upper end face of the pressure cap.

[0014] In one or more embodiments of this utility model, a second insert block is fixedly connected to the elastic card plate, and a second slot matching the second insert block is provided on the groove wall of the card slot.

[0015] In one or more embodiments of this utility model, a pair of wing plates are fixedly connected to the sealing plate, and the groove wall of the first sliding groove is provided with a wing groove that matches the wing plate.

[0016] Compared with the prior art, the air filter with color indication of this utility model does not need to be turned off when the filter element is replaced, thus ensuring a continuous supply of clean indoor air and a stable positive pressure state, and avoiding the risk of external polluted air intrusion due to shutdown for filter element replacement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of an air filter with color indication according to one embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an air filter with color indication according to one embodiment of the present invention. Figure 2 ; Figure 3 This is a partial cross-sectional view of an air filter with color indication according to an embodiment of the present invention. Figure 1 ; Figure 4 This is a partial cross-sectional view of an air filter with color indication according to an embodiment of the present invention. Figure 2 ; Figure 5 for Figure 1 Schematic diagram of the structure at point A; Figure 6 This is a cross-sectional view of a mounting box for an air filter with color indication according to an embodiment of the present invention. Figure 1 ; Figure 7 This is a cross-sectional view of a fixing box for an air filter with color indication according to an embodiment of the present invention. Figure 2 ; Figure 8 for Figure 3 A schematic diagram of the structure at point B.

[0019] Explanation of reference numerals in the attached figures: 1. Filter body; 11. Placement slot; 111. First slot; 112. Card slot; 113. Second slot; 12. Pressure cap; 121. First insert block; 122. Elastic card plate; 123. Second insert block; 13. First slide groove; 131. Wing groove; 14. Second slide groove; 15. Third slot; 2. Sealing plate; 21. Wing plate; 22. Wrench; 3. Fixing box; 31. Slider; 311. Slide rail; 3111. Locking position; 3112. Unlocking position; 32. Pressure post; 33. Pin; 34. Spring; 35. Fixing plate; 351. First hinge post; 36. Connecting plate; 361. Second hinge post. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 2As shown, an air filter with color indication in one embodiment of this utility model includes a filter body 1. The filter body 1 has a placement slot 11 for placing a filter element. The placement slot 11 is connected to an air outlet device inside the filter body 1, and a pressure cap 12 is placed over the placement slot 11. Specifically, the filter body 1 is sealed to the air supply duct of the cleanroom. The filter element is placed in the placement slot 11, and then the pressure cap 12 is closed. The filter body 1 is then activated, and air passes through the filter element (not shown in the figure) in the placement slot 11 and enters the filter body 1, ultimately being delivered into the cleanroom. The filter body 1 has an internal wind pressure sensor and a display screen that matches the wind pressure sensor. When the wind pressure decreases to a threshold value, the display screen gradually changes from green to yellow, and finally to red, indicating the severity of filter blockage, allowing staff to determine whether replacement is necessary. This is prior art and will not be elaborated further.

[0022] like Figures 2 to 4 As shown, there is a pair of placement slots 11. The filter body 1 has a first sliding groove 13 that communicates with the pair of placement slots 11. A sealing plate 2 for sealing the placement slots 11 is slidably connected in the first sliding groove 13. Specifically, during normal use, the sealing plate 2 seals one of the placement slots 11, preventing the filter element inside from participating in the filtration process. When the filter element that needs to be replaced needs to be replaced, the sealing plate 2 is slid to seal the placement slot 11 containing the filter element to be replaced. At this time, the other placement slot 11 is opened, and the filter element can be replaced without stopping the machine. For example, if the left placement slot 11 of the filter body 1 is sealed by the sealing plate 2, the filter element in the left placement slot 11 will not participate in the filtration process, and the air will enter the filter body 1 after being filtered by the filter element in the right placement slot 11. When the filter element in the right placement slot 11 needs to be replaced, the sealing plate 2 is slid to the right, and the sealing plate 2 can seal the right placement slot 11. At this time, the air enters the filter body 1 after being filtered by the filter element in the left placement slot 11. Without shutting down the machine, the filter element in the right-side placement slot 11 can be replaced, ensuring the air quality entering the clean room while also maintaining positive pressure in the clean room.

[0023] Furthermore, a wrench 22 is integrally formed on the sealing plate 2, and a second sliding groove 14 matching the wrench 22 is provided on the filter body 1. The second sliding groove 14 is connected to the first sliding groove 13, and the wrench 22 is slidably connected in the second sliding groove 14. By pulling the wrench 22, it is easy to control the sliding of the sealing plate 2 in the first sliding groove 13.

[0024] It is worth noting that, due to the presence of the second slide groove 14, after the sealing plate 2 blocks one of the placement grooves 11, the unblocked placement groove 11 will connect with the second slide groove 14 through the first slide groove 13, allowing unfiltered air to enter the filter body 1 from the second slide groove 14. Furthermore, a pair of wing plates 21 are integrally formed on the sealing plate 2, and the groove wall of the first slide groove 13 has wing grooves 131 that match the wing plates 21. The pair of wing plates 21 can block the second slide groove 14, preventing air from entering the filter body 1 from the second slide groove 14 regardless of whether the sealing plate 2 slides left or right within the first slide groove 13, thus ensuring the cleanliness of the air entering the cleanroom.

[0025] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, a fixed box 3 is welded to the side wall of the wrench 22. A slider 31 is slidably connected inside the fixed box 3. A pressure post 32 and a pin 33 are welded to the upper and lower end faces of the slider 31, respectively. The pressure post 32 penetrates the upper box wall of the fixed box 3 and is slidably connected to the fixed box 3. The pin 33 penetrates the lower box wall of the fixed box 3 and is slidably connected to the fixed box 3. A pair of third slots 15 matching the pin 33 are provided on the filter body 1. When the wrench 22 is pulled, when one side wall of the wrench 22 is in contact with the groove wall of the second slide groove 14, the pin 33 is concentric with one of the third slots 15, pressing down on the pressure post 32, thereby pushing the slider 31 and the pin 33 to slide downward. The pin 33 is inserted into the third slot 15, locking the wrench 22 and preventing the sealing plate 2 from sliding in the first slide groove 13 due to vibration generated during the operation of the filter body 1.

[0026] Furthermore, a spring 34 is welded to the end face of the slider 31 near the pin 33, and the end of the spring 34 away from the slider 31 is welded to the lower wall of the fixed box 3. The elastic contraction force of the spring 34 can make the pin 33 firmly inserted into the third slot 15. It should be noted that if the sliding wrench 22 is used, the pressure column 32 needs to be pulled upward with one hand, and the pressure column 32 can only be released after the wrench 22 has slid into place.

[0027] To make it more convenient to use the sliding wrench 22, such as Figure 5 and Figure 7 As shown, a fixing plate 35 is welded to the lower wall of the fixing box 3. A first hinge post 351 is welded to the fixing plate 35. A connecting plate 36 is rotatably connected to the first hinge post 351. A second hinge post 361 is rotatably connected to the connecting plate 36. A slide rail 311 matching the second hinge post 361 is provided on the slider 31. The second hinge post 361 is slidably connected in the slide rail 311. The slide rail 311 is provided with a locking position 3111 and an unlocking position 3112.

[0028] Specifically, under normal conditions, the second hinge pin 361 is in the unlocked position 3112, at which point the pin 33 disengages from the third slot 15, allowing the wrench 22 to slide normally. When it is necessary to lock the wrench 22, the pressure pin 32 is pressed down, causing the second hinge pin 361 to slide within the placement groove 11, compressing the spring 34, and inserting the pin 33 into the third slot 15. Releasing the pressure pin 32 allows the spring 34 to elastically extend, and the second hinge pin 361, restricted by the slide rail 311, slides to the locked position 3111. At this point, the second hinge pin 361 pulls the slider 31, preventing it from returning to its original position, thus achieving the locking effect on the wrench 22. When the sliding wrench 22 needs to be moved, press the pressure pin 32 again. The second hinge pin 361 can slide out from the locking position 3111. Release the pressure pin 32, and under the action of the spring 34's rebound force, the slider 31 slides upward within the fixed box 3, and the second hinge pin 361 returns to the unlocked position 3112. The above principle is the same as the working principle of the spring locking pin, and will not be elaborated further.

[0029] like Figure 3 and Figure 7 As shown, a pair of first inserts 121 are integrally formed on the cover 12, and a first slot 111 matching the first inserts 121 is provided on the groove wall of the placement groove 11. An elastic plate 122 is thermally fused to one end of the cover 12 away from the first inserts 121, and a slot 112 matching the elastic plate 122 is provided on the groove wall of the placement groove 11.

[0030] Specifically, when closing the pressure cap 12, first insert the first insert 121 into the first slot 111 and press down on the end of the pressure cap 12 away from the first insert 121. At this time, the elastic retaining plate 122 is compressed, and the friction between the elastic retaining plate 122 and the slot 112 allows the pressure cap 12 to close onto the placement slot 11. When replacing the filter element, press the elastic retaining plate 122 towards the pressure cap 12 to move the elastic retaining plate 122 away from the side wall of the slot 112, and then pull the pressure cap 12 outward to remove it from the placement slot 11.

[0031] Furthermore, a second insert 123 is integrally formed on the elastic plate 122, and a second slot 113 matching the second insert 123 is provided on the groove wall of the slot 112. During installation, the elastic plate 122 is pressed to enter the slot 112, and then the elastic plate 122 is released. The rebound force of the elastic plate 122 allows the second insert 123 to be inserted into the second slot 113, thereby enhancing the stability of the pressure cap 12 in the placement slot 11.

[0032] It should be noted that the elastic plate 122 protrudes from the upper end face of the pressure cap 12 and the filter body 1, which facilitates pressing the elastic plate 122.

[0033] When using, such as Figures 1 to 4As shown, when the filter element in the right placement slot 11 needs to be replaced, there is no need to stop the operation of the filter body 1. By pulling the wrench 22 to the right, the sealing plate 2 can slide in the first sliding groove 13. During the sliding process of the sealing plate 2 in the first sliding groove 13, the right placement slot 11 is gradually closed, and the left placement slot 11 is gradually opened. Air is filtered by the filter element in the left placement slot 11 and enters the filter body 1. Opening the pressure cap 12 on the right placement slot 11 allows the filter element in the right placement slot 11 to be replaced. After replacement, close the pressure cap 12, and repeat the above actions when the filter element in the left placement slot 11 needs to be replaced.

[0034] Obviously, the above-described embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. An air filter with color indication, comprising a filter body (1), wherein the filter body (1) has a placement groove (11) for placing a filter element, and a pressure cap (12) is fitted over the placement groove (11), characterized in that, The placement slots (11) are a pair. The filter body (1) is provided with a first sliding groove (13) that communicates with the pair of placement slots (11). A sealing plate (2) is slidably connected in the first sliding groove (13). When the sealing plate (2) slides in the first sliding groove (13), it can block any one of the placement slots (11). A wrench (22) is fixedly connected to the sealing plate (2). The filter body (1) is provided with a second sliding groove (14) that matches the wrench (22). The second sliding groove (14) communicates with the first sliding groove (13). The wrench (22) is slidably connected in the second sliding groove (14).

2. An air filter with color indication according to claim 1, characterized in that, The wrench (22) is fixedly connected to a fixed box (3), and a slider (31) is slidably connected inside the fixed box (3). A pressure post (32) and a pin (33) are fixedly connected to the slider (31). The pressure post (32) penetrates the upper box wall of the fixed box (3) and is slidably connected to the fixed box (3). The pin (33) penetrates the lower box wall of the fixed box (3) and is slidably connected to the fixed box (3). A pair of third slots (15) matching the pin (33) are provided on the filter body (1).

3. An air filter with color indication according to claim 2, characterized in that, A spring (34) is fixedly connected to one end of the slider (31) near the pin (33), and the end of the spring (34) away from the slider (31) is fixedly connected to the lower wall of the fixed box (3).

4. An air filter with color indication according to claim 3, characterized in that, A fixing plate (35) is fixedly connected to the lower wall of the fixing box (3). A first hinge post (351) is fixedly connected to the fixing plate (35). A connecting plate (36) is rotatably connected to the first hinge post (351). A second hinge post (361) is rotatably connected to the connecting plate (36). A slide rail (311) matching the second hinge post (361) is opened on the slider (31). The second hinge post (361) is slidably connected in the slide rail (311). A locking position (3111) and an unlocking position (3112) are provided on the slide rail (311).

5. An air filter with color indication according to claim 4, characterized in that, When the second hinge post (361) is in the locked position (3111), the pin (33) is inserted into the third slot (15).

6. An air filter with color indication according to claim 4, characterized in that, When the second hinge post (361) is in the unlocked position (3112), the pin (33) is away from the filter body (1).

7. An air filter with color indication according to claim 1, characterized in that, A pair of first inserts (121) are fixedly connected to the cover (12). A first slot (111) matching the first inserts (121) is opened on the wall of the placement groove (11). An elastic plate (122) is fixedly connected to one end of the cover (12) away from the first inserts (121). A slot (112) matching the elastic plate (122) is opened on the wall of the placement groove (11).

8. An air filter with color indication according to claim 7, characterized in that, The elastic plate (122) protrudes from the upper end face of the pressure cap (12).

9. An air filter with color indication according to claim 7, characterized in that, A second insert (123) is fixedly connected to the elastic plate (122), and a second slot (113) matching the second insert (123) is opened on the groove wall of the slot (112).

10. An air filter with color indication according to claim 1, characterized in that, A pair of wing plates (21) are fixedly connected to the sealing plate (2), and the groove wall of the first sliding groove (13) is provided with a wing groove (131) that matches the wing plate (21).

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