Air bag gasket sealing filter frame and bag-in and bag-out equipment

Abstract

The utility model relates to an air bag gasket sealing filter frame and bag inlet and outlet equipment, the air bag gasket sealing filter frame comprises a frame body and a sealing air bag, the outer side of one port of the frame body is circumferentially provided with a plurality of sealing plates, and the plurality of sealing plates are bent to form a sealing groove with the frame body; the sealing air bag is embedded in the sealing groove, the shape and size of the sealing air bag are equal to those of the sealing groove, the sealing air bag is tightly attached to the sealing groove, and the height of the inflated sealing air bag is larger than the depth of the sealing groove; the end opening of the side, away from the sealing air bag, of the frame body is turned over to form a fixing groove. Pressing force can be evenly applied to the filter frame through the sealing air bag on one side of the frame body, the deformation condition of the filter frame can be well controlled through the pressing force applying mode, therefore, a gap between a filter frame gasket and a box body pressing face is eliminated, and the sealing performance and the filtering efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter sealing, in particular to an airbag gasket for sealing a filter frame and a bag-in / bag-out device. Background Art

[0002] The "Bag-In / Bag-Out" device is a special protection device for handling and filtering pollutants such as harmful gases, dust, or radioactive substances. The characteristic of this device is that when it is necessary to replace the filter material (such as a filter), the operation can be carried out in a completely sealed environment to prevent pollutants from leaking into the surrounding environment. The operation process is to load the used filter into a special bag, then take it out in a sealed state, and then load a new filter into another bag and put it into the device, ensuring the safety of the operator and the environment throughout the process.

[0003] In the prior art, the filters used in the industry are relatively heavy, and the clamping mechanism requires a large pressing force. The conventional pressing mechanism applies the pressing force to the upper and lower sides of the filter, and the force is transmitted from the two sides to the entire filter. This will cause uneven stress on the sealing gasket and large deformation of the filter frame. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the excessive extrusion deformation of the filter frame in the prior art affects the sealing effect of the filter and results in poor filtering effect.

[0005] To solve the above technical problem, the utility model provides an airbag gasket for sealing a filter frame, including:

[0006] A frame body and a sealing airbag. A plurality of sealing plates are circumferentially arranged on the outer side of one port of the frame body. A sealing groove is formed between the plurality of sealing plates and the frame body after being bent. The sealing airbag is embedded in the sealing groove. The shape of the sealing airbag is equal to the shape and size of the sealing groove. The sealing airbag is tightly attached to the sealing groove, and the height of the sealing airbag after inflation is higher than the depth of the sealing groove. A fixing groove is formed by folding the port on the side of the frame body away from the sealing airbag.

[0007] In an embodiment of the utility model, sealing layers are arranged on the bottom and side walls of the sealing groove, and the sealing layers are arranged between the sealing groove and the sealing airbag.

[0008] In an embodiment of the utility model, an inflation nozzle is arranged on the sealing airbag, and an inflation port matching the inflation nozzle is arranged on the bottom of the sealing groove.

[0009] In an embodiment of the present utility model, a sealing ring is provided between the inflation port and the inflation nozzle, and the sealing ring is clamped on both sides of the inflation port.

[0010] In an embodiment of the present utility model, a stop valve is connected to the inflation nozzle, and an air pump is connected to one end of the stop valve away from the inflation nozzle.

[0011] In an embodiment of the present utility model, the frame body includes two first side plates and two second side plates, the first side plates and the second side plates are symmetrically arranged in pairs, and the first side plates and the second side plates are detachably connected.

[0012] In an embodiment of the present utility model, flanges are formed by bending the two sides where the first side plate is connected to the second side plate, first connection holes are formed on the flanges, and second connection holes corresponding to the positions of the first connection holes are formed on the second side plates.

[0013] In an embodiment of the present utility model, the material of the sealing layer is epoxy resin.

[0014] A bag-in-bag-out device includes the airbag gasket sealed filter frame as described above, and further includes an installation box body. The frame body is arranged in the installation box body, a limiting baffle is arranged inside the installation box body, and one side of the frame body provided with a fixing groove abuts against the limiting baffle.

[0015] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0016] For the airbag gasket sealed filter frame and the bag-in-bag-out device of the present utility model, the sealing airbag on one side of the frame body can uniformly apply a pressing force to the filter frame. This pressing force application method can better control the deformation of the filter frame, thereby eliminating the gap between the gasket of the filter frame and the pressing surface of the box body, and improving the sealing performance and filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in conjunction with the attached drawings, where

[0018] Figure 1 is the overall structural schematic diagram of Embodiment 1 in the present utility model;

[0019] Figure 2 is Figure 1 the partial structural cross-sectional view at the inflation nozzle in

[0020] Figure 3 is Figure 1 the structural schematic diagram of the frame body in

[0021] Figure 4 For Figure 3 Schematic diagram of the connection structure of the middle sealing plate;

[0022] Figure 5 For Figure 3 Schematic diagram of the connection structure of the first side plate and the second side plate in the middle;

[0023] Figure 6 For Figure 1 Schematic diagram of the structure of the sealing airbag in the middle;

[0024] Figure 7 It is the overall structure schematic diagram of the second embodiment of the present utility model;

[0025] Figure 8 For Figure 7 Enlarged view of the local structure at A in the middle;

[0026] Explanation of the reference numerals in the drawings of the specification: 1. Frame body; 2. Sealing airbag; 3. Installation box; 11. Sealing plate; 12. Sealing groove; 13. First side plate; 14. Second side plate; 15. Fixed groove; 16. Sealing layer; 21. Inflation nozzle; 22. Sealing ring; 31. Limit baffle; 121. Inflation port; 131. Flange; 132. First connection hole; 141. Second connection hole. Specific embodiments

[0027] The following further illustrates the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the examples given are not intended to limit the present utility model.

[0028] Referring to Figures 1-6 as shown, the present utility model discloses an airbag gasket sealed filter frame, including:

[0029] A frame body 1 and a sealing airbag 2, a plurality of sealing plates 11 are circumferentially arranged on the outer side of one port of the frame body 1, and a sealing groove 12 is formed between the plurality of sealing plates 11 bent and the frame body 1; the sealing airbag 2 is embedded in the sealing groove 12, the shape of the sealing airbag 2 is equal to the shape and size of the sealing groove 12, the sealing airbag 2 is tightly attached to the sealing groove 12, and the height of the sealing airbag 2 after inflation is higher than the depth of the sealing groove 12; a fixed groove 15 is formed by folding the port on the side of the frame body 1 away from the sealing airbag 2.

[0030] It can be conceived that on the surface of the frame body 1 on one side of the filter outlet in the present utility model, a sealing groove 12 is provided, and a sealing airbag 2 is installed in the sealing groove 12; and a fixing groove 15 is provided on the side of the frame body 1 away from the sealing airbag 2. During use, when the entire filter is installed, the side with the sealing airbag 2 (the outlet end) is fitted with the installation box body 3, and the other side is clamped in the installation box body 3. Then, the sealing airbag 2 is inflated. Since the height of the inflated sealing airbag 2 is higher than the height of the sealing groove 12, a seal is formed around the outlet end of the entire filter through the sealing airbag 2. Secondly, one end of the entire filter away from the sealing airbag 2 is limited by the fixing groove 15. During the inflation process of the sealing airbag 2, a reaction force is applied to one end of the fixing groove 15, pressing the entire filter tightly in the box body. Since the sealing airbag 2 is arranged around the port of the frame body 1, the formed reaction force is also evenly distributed on the entire frame body 1. This way of applying the pressing force can better control the deformation of the filter frame, thereby eliminating the gap between the filter frame gasket and the pressing surface of the box body.

[0031] In the present utility model, the sealing airbag 2 on one side of the frame body 1 can evenly apply a pressing force to the filter frame. This way of applying the pressing force can better control the deformation of the filter frame, thereby eliminating the gap between the filter frame gasket and the pressing surface of the box body, improving the sealing performance and filtration efficiency.

[0032] Furthermore, sealing layers 16 are provided on both the bottom and the side wall of the sealing groove 12, and the sealing layers 16 are arranged between the sealing groove 12 and the sealing airbag 2.

[0033] Specifically, by arranging the sealing layers 16 between the sealing groove 12 and the sealing airbag 2, the entire sealing groove 12 is sealed, preventing the gas to be filtered from leaking from the sealing groove 12 during use. As a preferred solution of the present utility model, the material of the sealing layer 16 is epoxy resin, which has corrosion resistance characteristics and is suitable for the sealing of corrosive gases.

[0034] Furthermore, an inflation nozzle 21 is provided on the sealing airbag 2, and an inflation port 121 matching with the inflation nozzle 21 is provided at the bottom of the sealing groove 12. A sealing ring 22 is arranged between the inflation port 121 and the inflation nozzle 21, and the sealing ring 22 is clamped on both sides of the inflation port 121.

[0035] Specifically, the sealing airbag 2 is inflated through the inflation nozzle 21. Since the inflation nozzle 21 needs to pass through the sealing groove 12, an inflation port 121 is opened on the sealing groove 12. During the assembly process, first, the sealing ring 22 is clamped at the inflation port 121, and then the inflation nozzle 21 is pressed tightly within the sealing ring 22. The sealing ring 22 forms a seal at the inflation port 121 to prevent unfiltered gas from leaking from the inflation port 121 during the use of the filter.

[0036] Further, a stop valve is connected to the inflation nozzle 21, and an air pump is connected to the end of the stop valve away from the inflation nozzle 21.

[0037] Further, the frame body 1 includes two first side plates 13 and two second side plates 14. The first side plates 13 and the second side plates 14 are symmetrically arranged in pairs, and the first side plates 13 and the second side plates 14 are detachably connected.

[0038] Specifically, on both sides where the first side plate 13 is connected to the second side plate 14, flanges 131 are formed by bending. First connection holes 132 are opened on the flanges 131, and second connection holes 141 corresponding to the positions of the first connection holes 132 are opened on the second side plates 14. After splicing is completed, the first connection holes 132 and the second connection holes 141 are connected by bolts.

[0039] Embodiment 2

[0040] Refer to Figures 7-8 As shown, a bag-in-bag-out device includes the airbag gasket sealed filter frame described in Embodiment 1, and further includes an installation box body 3. The frame body 1 is arranged inside the installation box body 3. A limit baffle 31 is arranged inside the installation box body 3, and one side of the frame body 1 provided with the fixing groove 15 abuts against the limit baffle 31.

[0041] Specifically, the limit baffle 31 is arranged inside the installation box body 3 to limit the displacement of the frame body 1 on the side away from the sealing airbag 2; the size of the filter frame body 1 is equal to the distance between the limit baffle 31 and the inner wall of the installation box body 3.

[0042] The present utility model introduces an airbag gasket sealed filter frame and a bag-in-bag-out device, and its installation process is as follows: First, place the filter inside the installation box body 3 and push the filter to the bottom; then confirm whether the installation position of the filter is correct; connect the inflation nozzle 21 to the stop valve, open the stop valve and the air pump, and inflate the sealing airbag 2; after the sealing airbag 2 is inflated and expanded, the sealing airbag 2 contacts and seals with the pressing surface of the installation box body 3, observe the gas pressure in the airbag, and adjust the pressure in the airbag to an appropriate range; finally, close the stop valve connected to the inflation port 121 of the sealing airbag 2 to form a sealing effect. During actual use, by observing whether the sealing airbag 2 fails, the sealing state can be understood, and the pressing force between the filter and the installation box body 3 can be monitored. In the present utility model, the sealing airbag 2 on one side of the frame body 1 can uniformly apply a pressing force to the filter frame. This way of applying the pressing force can better control the deformation of the filter frame, thereby eliminating the gap between the filter frame gasket and the pressing surface of the box body, and improving the sealing performance and filtration efficiency.

[0043] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. An airbag gasket sealing filter frame, characterized in that: include: A frame body and a sealing airbag, wherein a plurality of sealing plates are circumferentially arranged on the outer side of a port of the frame body, and a sealing groove is formed between the plurality of sealing plates and the frame body by bending; the sealing airbag is embedded in the sealing groove, and the shape of the sealing airbag is equal to the shape and size of the sealing groove, the sealing airbag is arranged closely against the sealing groove, and the height of the sealing airbag after inflation is higher than the depth of the sealing groove; the port of the frame body on the side away from the sealing airbag is folded to form a fixing groove.

2. The airbag gasket sealing filter frame according to claim 1, characterized in that: A sealing layer is arranged on the bottom and side wall of the sealing groove, and the sealing layer is arranged between the sealing groove and the sealing airbag.

3. The airbag gasket sealing filter frame according to claim 1, characterized in that: The sealing airbag is provided with an inflation nozzle, and the bottom of the sealing groove is provided with an inflation port matched with the inflation nozzle.

4. The airbag gasket sealing filter frame according to claim 3, characterized in that: A sealing ring is arranged between the inflation port and the inflation nozzle, and the sealing ring is clamped on both sides of the inflation port.

5. The airbag gasket sealing filter frame according to claim 3, characterized in that: The inflation nozzle is connected with a stop valve, and one end of the stop valve away from the inflation nozzle is connected with an air pump.

6. The airbag gasket sealing filter frame according to claim 1, characterized in that: The frame body includes two first side panels and two second side panels, the first side panels and the second side panels are symmetrically arranged in pairs, and the first side panels and the second side panels are detachably connected.

7. The airbag gasket sealing filter frame according to claim 6, characterized in that: The two sides where the first side plate is connected to the second side plate are bent to form flanges, a first connecting hole is provided on the flange, and a second connecting hole corresponding to the position of the first connecting hole is provided on the second side plate.

8. The airbag gasket sealing filter frame according to claim 2, characterized in that: The material of the sealing layer is epoxy resin.

9. A bag-in-bag-out device, comprising an airbag gasket sealing filter frame according to any one of claims 1 to 8, characterized in that: It also includes an installation box, the frame body is arranged in the installation box, a limit baffle is arranged inside the installation box, and a side of the frame body provided with a fixing groove abuts against the limit baffle.

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