Sealing structure of mini portable testboard

Abstract

The utility model provides a mini portable testboard sealing structure, which comprises a box body and a filter, the filter comprises a filter body and a filter mounting rack, the filter body is arranged in the filter mounting rack, the upper surface of the box body is provided with a filter mounting platform, the filter mounting rack is in contact with the filter mounting platform, and the filter mounting rack is in contact with the filter mounting platform. A flue is arranged in the center in the box body, the top and the bottom of the flue are both communicated with the external environment, a fuming device and a pipeline fan are further arranged in the box body, the output end of the fuming device is connected with the input end of the pipeline fan, the output end of the pipeline fan is communicated with the flue, and a sealing structure is connected to the periphery of the joint of the box body and the filter mounting platform. The sealing structure comprises a limiting edge and a sealing gasket, and is used for enabling the to-be-detected filter to be in sealed connection with the filter mounting platform when the leakage of the filter needs to be detected, thereby effectively preventing the smoke generated by the smoke generation device from vertically leaking from the contact part of the filter mounting platform and the filter mounting rack.

Description

Technical Field

[0001] The utility model relates to the technical field of filter testing, and more specifically to a sealing structure of a mini portable test bench. Background Art

[0002] A high-efficiency filter (HEPA) is a device used for filtration, and is widely used in central air conditioning systems. Its performance requires testing using a HEPA filter testing device. HEPA filters offer high filtration efficiency and are widely used in dust-free purification workshops such as those in optical electronics, biomedicine, and PCB printing. To ensure their effectiveness, HEPA filters undergo rigorous leak testing before leaving the factory.

[0003] When testing whether a filter to be tested is leaking, the filter to be tested needs to be connected to the testing equipment. It is inevitable that there will be a gap between the contact part of the filter to be tested and the testing equipment, and the sealing effect is not very good, which affects the test effect.

[0004] The existing patent authorization announcement number is: CN 216899572 U, which discloses a filter test bench sealing device, including an electronic control module, a three-position five-way solenoid valve, an air source, an airbag and a sealing chamber. Compared with the existing technology, the present application has the following beneficial effects: compared with the sealing method of flanges, gaskets, and bolts, it is necessary to set a lot of bolts at a very short distance to meet the sealing requirements. Conventionally, at least 12 are required. As the sampling section and the placement section become longer, the number of sealing bolts increases by 4 times, so the number of required fixing bolts is very large. The present application uses an airbag to seal the gap between the sampling section and the placement section. It only needs to set 2 bolts on any two surfaces to define the distance between the first frame and the second frame. The airbag can be used to achieve a high degree of sealing, and the sealing strength of each part is relatively uniform and stable. It greatly saves the number of bolt seals, improves the efficiency of disassembly and assembly, and shortens the separation time of the placement section exponentially.

[0005] However, in the prior art, although a sealing device is provided, it is not very convenient in terms of operation and installation, and multiple screws need to be installed for stabilization, resulting in high subsequent maintenance costs. Utility Model Content

[0006] Therefore, in order to solve the above technical problems, the utility model proposes a sealing structure of a mini portable test bench, including a box body 10 and a filter. The filter includes a filter body and a filter mounting frame. The filter body is placed in the filter mounting frame. The upper surface of the box body 10 is provided with a filter mounting platform 20. The filter mounting frame is in contact with the filter mounting platform 20. A flue 30 is provided in the center of the box body 10. The flue 30 is a hollow chamber. The top and bottom of the flue 30 are both connected to the external environment. The top of the flue 30 is just placed on the bearing surface of the filter mounting platform 20. A smoke generating device 40 and a duct fan 50 are also provided in the box body 10. The output end of the smoke generating device 40 is connected to the input end of the duct fan 50, and the output end of the duct fan 50 is connected to the flue 30. A sealing structure 60 is provided around the connection between the box body 10 and the filter mounting platform 20. The sealing structure 60 includes a limiting edge 601 and a sealing gasket 602, which is used to seal the filter to be tested with the filter mounting platform 20 when it is necessary to detect whether the filter is leaking, thereby effectively preventing the smoke generated by the smoke generating device 40 from leaking vertically from the contact part between the filter mounting platform 20 and the filter mounting frame, thereby improving the detection effect, and not only facilitating the later disassembly and replacement of the limiting edge 601 and the sealing gasket 602, but also reducing the replacement and maintenance costs.

[0007] A sealing structure of a mini portable test bench includes a box 10 and a filter. The filter includes a filter body and a filter mounting frame. The filter body is placed in the filter mounting frame. The upper surface of the box 10 is provided with a filter mounting platform 20. The filter mounting frame is in contact with the filter mounting platform 20. A flue 30 is provided in the center of the box 10. The flue 30 is a hollow chamber. The top and bottom of the flue 30 are both connected to the external environment. The top of the flue 30 is just placed on the bearing surface of the filter mounting platform 20. A smoke generating device is also provided in the box 10. 40 and a duct fan 50, the output end of the smoke generating device 40 is connected to the input end of the duct fan 50, and the output end of the duct fan 50 is communicated with the flue 30, and a sealing structure 60 is provided around the connection between the box body 10 and the filter mounting platform 20, and the sealing structure 60 includes a limiting edge 601 and a sealing gasket 602, which is used to seal the filter to be tested with the filter mounting platform 20 when it is necessary to detect whether the filter is leaking, thereby effectively preventing the smoke generated by the smoke generating device 40 from vertically leaking from the contact part between the filter mounting platform 20 and the filter mounting frame.

[0008] Furthermore, the limiting edge 601 is a folded edge structure, each edge of the top of the box body 10 is provided with a limiting edge 601 and adjacent limiting edges 601 are connected end to end, and the limiting edge 601 is detachably connected to the box body 10.

[0009] Furthermore, the limiting edge 601 includes a vertical folding edge and a transverse folding edge, and the transverse folding edge contacts the corresponding edge of the top of the box body 10.

[0010] Furthermore, the inner and outer sides of the transverse folded edges that contact the corresponding edges of the top of the box body 10 are sealed by sealant, so that smoke will not leak from the connection between the limiting edge 601 and the box body 10, and the sealing is better.

[0011] Furthermore, the sealing gasket 602 is placed on the non-contact portion between the transverse fold and the filter mounting frame, so that the filter mounting frame and the corresponding transverse fold are sealed and connected via the sealing gasket 602, thereby achieving better sealing performance.

[0012] Furthermore, the ends of the adjacent sealing gaskets 602 are connected by snap fasteners, which facilitates disassembly and provides strong sealing performance.

[0013] Furthermore, an air duct 70 is provided in the box body 10, and the air duct 70 includes a first air duct 701 and a second air duct 702. The input end of the first air duct 701 is connected to the output end of the smoke generating device 40, the output end of the first air duct 701 is connected to the input end of the duct fan 50, the output end of the duct fan 50 is connected to the input end of the second air duct 702, and the output end of the second air duct 702 is connected to the flue 30. The first air duct 701 and the second air duct 702 are made of flexible and retractable materials, which better utilize the space of the box body 10.

[0014] Furthermore, the first air duct 701 and the second air duct 702 are made of flexible and retractable aluminum foil, which is resistant to high temperatures and has good corrosion resistance.

[0015] Furthermore, the bottom of the flue 30 is vertically fixedly connected to the bottom of the box body 10, and a water outlet is provided at the bottom of the flue 30. A matching soft plug is provided at the water outlet. When there is debris or dust in the flue 30, it is cleaned with clean water, and the cleaned sewage is discharged through the water outlet. The water stains on the inner wall of the flue 30 are blown dry by the duct fan 50. When it is necessary to detect whether the filter is leaking, the soft plug is used to block the water outlet, and the bottom of the flue 30 is in a closed state, so as to perform filter leakage detection.

[0016] Furthermore, universal wheels 80 are provided at the corners around the bottom of the box 10. There are four universal wheels 80 to facilitate moving the box 10. Handles are provided on the corresponding outer side walls of the box 10 to facilitate inspection and lifting.

[0017] Beneficial effects of the present invention: The present invention proposes a sealing structure of a mini portable test bench, comprising a box body 10 and a filter, wherein the filter comprises a filter body and a filter mounting frame, the filter body is placed in the filter mounting frame, the upper surface of the box body 10 is provided with a filter mounting platform 20, the filter mounting frame is in contact with the filter mounting platform 20, a flue 30 is provided in the center of the box body 10, the flue 30 is a hollow chamber, the top and bottom of the flue 30 are both connected to the external environment, the top of the flue 30 is just placed on the bearing surface of the filter mounting platform 20, a smoke generating device 40 and a duct fan 50 are also provided in the box body 10, the smoke generating device 40 and the duct fan 50 are The output end of the smoke device 40 is connected to the input end of the duct fan 50, and the output end of the duct fan 50 is connected to the flue 30. A sealing structure 60 is provided around the connection between the box body 10 and the filter mounting platform 20. The sealing structure 60 includes a limiting edge 601 and a sealing gasket 602, which is used to seal the filter to be tested with the filter mounting platform 20 when it is necessary to detect whether the filter is leaking, thereby effectively blocking the smoke generated by the smoke device 40 from leaking vertically from the contact part between the filter mounting platform 20 and the filter mounting frame, thereby improving the detection effect, and not only facilitating the later disassembly and replacement of the limiting edge 601 and the sealing gasket 602, but also reducing the replacement and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the sealing structure of a mini portable test bench of the present invention.

[0019] Figure 2 This is a partial structural diagram of the sealing structure of a mini portable test bench of the present invention.

[0020] Figure 3 This is a schematic diagram of the overall structure of the sealing structure of a mini portable test bench of the present invention.

[0021] Description of main component symbols

[0022] Box body 10 , filter mounting platform 20 , flue 30 , smoke generating device 40 , duct fan 50 , sealing structure 60 , limiting edge 601 , sealing gasket 602 , air duct 70 , first air duct 701 , second air duct 702 , universal wheel 80 .

[0023] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] The following examples are described to assist in understanding the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0025] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0026] At the same time, the connections between components or systems are not intended to be limited to direct connections. Instead, data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0027] Example 1

[0028] like Figure 1 As shown in FIG, it is a schematic diagram of the overall structure of the sealing structure of a mini portable test bench of the present invention; Figure 2 As shown in FIG, it is a schematic diagram of a partial structure of a sealing structure of a mini portable test bench of the present invention; Figure 3 The figure shows the overall structure diagram of the sealing structure of a mini portable test bench of the present invention.

[0029] A sealing structure of a mini portable test bench includes a box 10 and a filter. The filter includes a filter body and a filter mounting frame. The filter body is placed in the filter mounting frame. The upper surface of the box 10 is provided with a filter mounting platform 20. The filter mounting frame is in contact with the filter mounting platform 20. A flue 30 is provided in the center of the box 10. The flue 30 is a hollow chamber. The top and bottom of the flue 30 are both connected to the external environment. The top of the flue 30 is just placed on the bearing surface of the filter mounting platform 20. A smoke generating device is also provided in the box 10. 40 and a duct fan 50, the output end of the smoke generating device 40 is connected to the input end of the duct fan 50, and the output end of the duct fan 50 is communicated with the flue 30, and a sealing structure 60 is provided around the connection between the box body 10 and the filter mounting platform 20, and the sealing structure 60 includes a limiting edge 601 and a sealing gasket 602, which is used to seal the filter to be tested with the filter mounting platform 20 when it is necessary to detect whether the filter is leaking, thereby effectively preventing the smoke generated by the smoke generating device 40 from vertically leaking from the contact part between the filter mounting platform 20 and the filter mounting frame.

[0030] The limiting edge 601 is a folded edge structure. Each edge of the top of the box body 10 is provided with a limiting edge 601 and adjacent limiting edges 601 are connected end to end. The limiting edge 601 is detachably connected to the box body 10.

[0031] The limiting edge 601 includes a vertical folding edge and a transverse folding edge, and the transverse folding edge contacts the corresponding edge of the top of the box body 10.

[0032] The inner and outer sides of the transverse folded edges that contact the corresponding edges of the top of the box body 10 are sealed by sealant, so that smoke will not leak from the connection between the limiting edge 601 and the box body 10, and the sealing is better.

[0033] The sealing gasket 602 is placed on the non-contact portion between the transverse fold and the filter mounting frame, so that the filter mounting frame and the corresponding transverse fold are sealed and connected via the sealing gasket 602 , thereby achieving better sealing performance.

[0034] The ends of the adjacent sealing gaskets 602 are connected by snap fasteners, which facilitates disassembly and has strong sealing performance.

[0035] An air duct 70 is also provided in the box body 10, and the air duct 70 includes a first air duct 701 and a second air duct 702. The input end of the first air duct 701 is connected to the output end of the smoke generating device 40, the output end of the first air duct 701 is connected to the input end of the duct fan 50, the output end of the duct fan 50 is connected to the input end of the second air duct 702, and the output end of the second air duct 702 is connected to the flue 30. The first air duct 701 and the second air duct 702 are made of flexible and retractable material, which better utilizes the space of the box body 10.

[0036] The first air duct 701 and the second air duct 702 are made of flexible and retractable aluminum foil, which is resistant to high temperatures and has good corrosion resistance.

[0037] The bottom of the flue 30 is vertically fixedly connected to the bottom of the box body 10. A water outlet is provided at the bottom of the flue 30. A matching soft plug is provided at the water outlet. When there is debris or dust in the flue 30, it is cleaned with clean water, and the cleaned sewage is discharged through the water outlet. The water stains on the inner wall of the flue 30 are blown dry by the duct fan 50. When it is necessary to detect whether the filter is leaking, the soft plug is used to block the water outlet, and the bottom of the flue 30 is in a closed state, so as to perform filter leakage detection.

[0038] Universal wheels 80 are provided at the corners around the bottom of the box 10. There are four universal wheels 80 to facilitate moving the box 10. Handles are provided on the corresponding outer side walls of the box 10 to facilitate maintenance and lifting.

[0039] Beneficial effects of the present invention: The present invention proposes a sealing structure of a mini portable test bench, comprising a box body 10 and a filter, wherein the filter comprises a filter body and a filter mounting frame, the filter body is placed in the filter mounting frame, the upper surface of the box body 10 is provided with a filter mounting platform 20, the filter mounting frame is in contact with the filter mounting platform 20, a flue 30 is provided in the center of the box body 10, the flue 30 is a hollow chamber, the top and bottom of the flue 30 are both connected to the external environment, the top of the flue 30 is just placed on the bearing surface of the filter mounting platform 20, a smoke generating device 40 and a duct fan 50 are also provided in the box body 10, the smoke generating device 40 and the duct fan 50 are The output end of the smoke device 40 is connected to the input end of the duct fan 50, and the output end of the duct fan 50 is connected to the flue 30. A sealing structure 60 is provided around the connection between the box body 10 and the filter mounting platform 20. The sealing structure 60 includes a limiting edge 601 and a sealing gasket 602, which is used to seal the filter to be tested with the filter mounting platform 20 when it is necessary to detect whether the filter is leaking, thereby effectively blocking the smoke generated by the smoke device 40 from leaking vertically from the contact part between the filter mounting platform 20 and the filter mounting frame, thereby improving the detection effect, and not only facilitating the later disassembly and replacement of the limiting edge 601 and the sealing gasket 602, but also reducing the replacement and maintenance costs.

[0040] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A sealing structure of a mini portable test bench, comprising a box (10), a filter, the filter comprising a filter body and a filter mounting frame, the filter body being placed in the filter mounting frame, a filter mounting platform (20) being provided on the upper surface of the box (10), the filter mounting frame being in contact with the filter mounting platform (20), a flue (30) being provided in the central portion of the box (10), the flue (30) being a hollow chamber, the top and bottom of the flue (30) both being in communication with the external environment, the top of the flue (30) being just placed on the bearing surface of the filter mounting platform (20), a smoke generating device (40) and a duct fan (50) being further provided in the box (10), the output end of the smoke generating device (40) being connected to the input end of the duct fan (50), the output end of the duct fan (50) being in communication with the flue (30), characterized in that The connection between the housing (10) and the filter mounting platform (20) is surrounded by a sealing structure (60), the sealing structure (60) comprising a limiting edge (601) and a sealing gasket (602), which is used to seal the filter to be tested with the filter mounting platform (20) when it is necessary to detect whether the filter is leaking, thereby effectively preventing the smoke generated by the smoke generating device (40) from leaking vertically from the contact portion between the filter mounting platform (20) and the filter mounting frame, the limiting edge (601) comprising a vertical folding edge and a transverse folding edge, the transverse folding edge being in contact with the corresponding edge of the top of the housing (10), and the inner and outer sides of the edge contact being sealed by a sealant, so that the smoke will not leak from the connection between the limiting edge (601) and the housing (10), the sealing gasket (602) being placed on the non-contact portion between the transverse folding edge and the filter mounting frame, so that the filter mounting frame and the corresponding transverse folding edge are sealed by the sealing gasket (602), thereby achieving better sealing performance.

2. The sealing structure of the mini portable test bench according to claim 1, characterized in that: The limiting edge (601) is a folded edge structure, and each edge of the top of the box body (10) is provided with a limiting edge (601), and adjacent limiting edges (601) are connected end to end, and the limiting edge (601) is detachably connected to the box body (10).

3. The sealing structure of the mini portable test bench according to claim 1, characterized in that: The ends of the adjacent sealing pads (602) are connected by snap-on buckles, which facilitates disassembly and provides strong sealing performance.

4. The sealing structure of the mini portable test bench according to claim 2, characterized in that: An air duct (70) is further provided in the box (10), and the air duct (70) includes a first air duct (701) and a second air duct (702). The input end of the first air duct (701) is connected to the output end of the smoke generating device (40), the output end of the first air duct (701) is connected to the input end of the duct fan (50), the output end of the duct fan (50) is connected to the input end of the second air duct (702), and the output end of the second air duct (702) is connected to the flue (30). The first air duct (701) and the second air duct (702) are made of flexible and retractable materials, so as to better utilize the space of the box (10).

5. The sealing structure of the mini portable test bench according to claim 4, characterized in that: The first air duct (701) and the second air duct (702) are made of flexible and retractable aluminum foil, which is resistant to high temperatures and has good corrosion resistance.

6. The sealing structure of the mini portable test bench according to claim 1, characterized in that: The bottom of the flue (30) is vertically fixedly connected to the bottom of the box (10). The bottom of the flue (30) is provided with a water outlet, and a matching soft plug is provided at the water outlet. When there are debris or dust in the flue (30), it is cleaned with clean water, and after the cleaned sewage is discharged through the water outlet, the water stains on the inner wall of the flue (30) are blown dry by the duct fan (50). When it is necessary to detect whether the filter is leaking, the soft plug is used to block the water outlet, and the bottom of the flue (30) is in a closed state, thereby performing a filter leakage detection.

7. The sealing structure of the mini portable test bench according to claim 6, characterized in that: Universal wheels (80) are provided at the corners around the bottom of the box (10). There are four universal wheels (80) to facilitate the movement of the box (10). Handles are provided on the corresponding outer side walls of the box (10) to facilitate maintenance and lifting.

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