Quick detectable filter
By setting a fixed head and a connector on the filter and using a differential pressure sensor to detect the pressure difference between the air inlet and the air outlet, the problem of difficulty in quickly detecting filter media blockage is solved, and the filter media status can be judged quickly and easily.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGHONG (GUANGDONG) AIR CONDITIONING MFG CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
Smart Images

Figure CN224388368U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of filter technology, and more particularly to filters that can be rapidly detected. Background Technology
[0002] For large buildings, ventilation ducts are typically used for air exchange. These ducts usually contain filters to improve air quality. These filters typically contain filter media, such as mesh, carbon particles, or filter screens. Over time, dust and other pollutants can impair the filtration efficiency of these media. Because the ducts are not easily disassembled for inspection, it is difficult to determine whether the filter media can continue to be used. Utility Model Content
[0003] To address the aforementioned issues, this technical solution provides a filter capable of rapid detection.
[0004] To achieve the above objectives, the technical solution is as follows:
[0005] Filters that can be detected quickly, including
[0006] The filter body includes an inner cavity, filter media disposed in the inner cavity, and an air inlet and an air outlet respectively connected to both ends of the inner cavity;
[0007] A fixing head is provided on the filter body and is set corresponding to the air inlet and air outlet; the fixing head is provided with a one-way valve to limit air leakage from the inner cavity to the outside.
[0008] The connector has one end for connection to the fixed head and the other end for connection to the differential pressure sensor; when the connector is connected to the fixed head, it presses against the one-way valve to release the one-way valve's restriction.
[0009] As described above, the fast-detectable filter includes a fixing head comprising a fixing seat, a sealing ring disposed between the fixing seat and the filter body, a first through hole disposed on the fixing seat, and a sealing spring pressing against the one-way valve and the fixing seat respectively, the sealing spring keeping the one-way valve covering the first through hole for sealing.
[0010] As described above, the quick-detectable filter includes a mating seat, a pressing member slidably disposed on the mating seat, a top ball cooperating with the pressing member, and a pressing spring for pressing the pressing member.
[0011] As described above, the filter with rapid detection has a fixing groove on the fixing seat. When the connector is connected to the fixing head, the fixing seat squeezes the top ball into the docking seat. The top ball pushes the pressing member to move in the direction of compressing the pressing spring until the top ball corresponds to the fixing groove. Then, the top ball protrudes from the docking seat and is embedded in the fixing groove.
[0012] As described above, in a rapidly detectable filter, when the top bead protrudes from the docking seat and is embedded in the fixing groove, the top pressure spring rebounds, pushing the top pressure member to move away from the top pressure spring, thereby lifting the one-way valve and making the first through hole communicate with the docking seat.
[0013] As described above, the rapidly detectable filter has an interface on the docking seat for connecting to a hose, and a second through hole on the top pressure member that connects the first through hole to the interface.
[0014] As described above, the rapidly detectable filter also includes a positioning ring threadedly connected to the docking seat, which is used to prevent the top ball from dislodging from the docking seat.
[0015] As described above, the rapidly detectable filter has a lever extending beyond the interface on the top pressure member.
[0016] The rapidly detectable filter, as described above, also includes a differential pressure sensor.
[0017] The beneficial effects of this application are:
[0018] This invention provides a filter capable of rapid detection. When testing is required, a fixed head is provided on the filter body, and a differential pressure sensor is connected via a connector to detect the pressure difference between the air inlet and outlet, enabling rapid detection and determination of whether the filter media is clogged. No disassembly is required for testing, making it simple and quick. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram showing the separation of the fixed head and the connector;
[0022] Figure 3 This is a schematic diagram of the connection between the fixed head and the connector. Detailed Implementation
[0023] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] Filters that can be detected quickly, including
[0025] The filter body 1 includes an inner cavity 11, a filter material 12 disposed in the inner cavity 11, and an air inlet 13 and an air outlet 14 respectively connecting the two ends of the inner cavity 11.
[0026] A fixing head 2 is provided on the filter body 1 and is set corresponding to the air inlet 13 and the air outlet 14; the fixing head 2 is provided with a one-way valve 3 to limit air leakage from the inner cavity 11 to the outside.
[0027] Connector 4, one end of which is used to connect to the fixed head 2, and the other end is used to connect to the differential pressure sensor; when the connector 4 is connected to the fixed head 2, it presses against the one-way valve 3 to release the restriction of the one-way valve 3.
[0028] This invention provides a filter capable of rapid detection. When testing is required, a fixed head is provided on the filter body, and a differential pressure sensor is connected via a connector to detect the pressure difference between the air inlet and outlet, enabling rapid detection and determination of whether the filter media is clogged. No disassembly is required for testing, making it simple and quick.
[0029] Furthermore, as a preferred embodiment of this solution and not a limitation, the fixing head 2 includes a fixing base 21, a sealing ring 22 disposed between the fixing base 21 and the filter body 1, a first through hole 23 disposed on the fixing base 21, and a sealing spring 24 pressing against the one-way valve 3 and the fixing base 21 respectively. The sealing spring 24 keeps the one-way valve 3 covering the first through hole 23 for sealing. During normal use, the sealing ring prevents air leakage from the filter body. The sealing spring ensures that the one-way valve maintains a seal against the first through hole.
[0030] Furthermore, as a preferred embodiment of this solution and not a limitation, the connector 4 includes a mating seat 41, a pressing member 42 slidably disposed on the mating seat 41, a top bead 43 cooperating with the pressing member 42, and a pressing spring 44 for pressing the pressing member 42. This allows for convenient and quick docking.
[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, the fixing seat 21 is provided with a fixing groove 25. When the mating head 4 is connected to the fixing head 2, the fixing seat 21 presses the top bead 43 into the mating seat 41. The top bead 43 pushes the pressing member 42 to move in the direction of compressing the pressing spring 44 until the top bead 43 corresponds to the fixing groove 25. At this point, the top bead 43 protrudes from the mating seat 41 and is embedded in the fixing groove 25. During mating, no additional operation or alignment is required; simply align the mating seat with the fixing seat and insert it for automatic fixing.
[0032] Furthermore, as a preferred embodiment of this solution and not a limitation, when the top bead 43 protrudes from the docking seat 41 and is embedded in the fixing groove 25, the top pressure spring 44 rebounds, pushing the top pressure member 42 to move away from the top pressure spring 44, thereby lifting the one-way valve 3 and connecting the first through hole 23 with the docking seat 41. After automatic fixing, the first through hole is automatically opened.
[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the docking seat 41 is provided with an interface 45 for connecting to a hose, and the top pressure member 42 is provided with a second through hole connecting the first through hole 23 and the interface 45. The differential pressure sensor has two hoses to detect the air pressure difference between the two hoses. One hose is connected to a connector on the air inlet, and the other hose is connected to a connector on the air outlet.
[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, the mating seat 41 is also provided with a positioning ring 46 that is threadedly connected thereto. The positioning ring 46 is used to prevent the top bead 43 from dislodging from the mating seat 41. The structure is simple and easy to assemble.
[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the pressing member 42 is provided with a lever 47 extending beyond the interface 45. Pulling the lever causes the pressing member to compress the pressing spring, causing the pressing member to move aside from the top ball, thereby disengaging it from the fixing groove and separating the fixing head from the connector.
[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, a differential pressure sensor is also included.
[0037] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.
Claims
1. A filter capable of rapid detection, characterized in that: include The filter body (1) includes an inner cavity (11), a filter material (12) disposed in the inner cavity (11), and an air inlet (13) and an air outlet (14) respectively connected to both ends of the inner cavity (11); A fixing head (2) is provided on the filter body (1) and is set corresponding to the air inlet (13) and air outlet (14); a one-way valve (3) is provided on the fixing head (2) to restrict air leakage from the inner cavity (11) to the outside. The connector (4) has one end for connecting to the fixed head (2) and the other end for connecting to the differential pressure sensor. When the connector (4) is connected to the fixed head (2), it presses against the one-way valve (3) to release the restriction of the one-way valve (3).
2. The rapidly detectable filter according to claim 1, characterized in that: The fixing head (2) includes a fixing seat (21), a sealing ring (22) disposed between the fixing seat (21) and the filter body (1), a first through hole (23) disposed on the fixing seat (21), and a sealing spring (24) pressing against the one-way valve (3) and the fixing seat (21) respectively. The sealing spring (24) keeps the one-way valve (3) covering the first through hole (23) for sealing.
3. The rapidly detectable filter according to claim 2, characterized in that: The connector (4) includes a docking seat (41), a pressing member (42) slidably disposed on the docking seat (41), a top bead (43) cooperating with the pressing member (42), and a pressing spring (44) for pressing the pressing member (42).
4. The rapidly detectable filter according to claim 3, characterized in that: The fixing seat (21) is provided with a fixing groove (25). When the connecting head (4) is connected to the fixing head (2), the fixing seat (21) squeezes the top ball (43) into the docking seat (41). The top ball (43) pushes the pressing member (42) to move in the direction of compressing the pressing spring (44) until the top ball (43) corresponds to the fixing groove (25). Then the top ball (43) protrudes from the docking seat (41) and is embedded in the fixing groove (25).
5. The rapidly detectable filter according to claim 4, characterized in that: When the top bead (43) protrudes from the docking seat (41) and is embedded in the fixing groove (25), the top pressure spring (44) rebounds, pushing the top pressure member (42) to move away from the top pressure spring (44) to lift the one-way valve (3) so that the first through hole (23) communicates with the docking seat (41).
6. The rapidly detectable filter according to claim 3, characterized in that: The docking seat (41) is provided with an interface (45) for connecting with a hose, and the top pressing member (42) is provided with a second through hole connecting the first through hole (23) and the interface (45).
7. The rapidly detectable filter according to claim 3, characterized in that: The docking seat (41) is also provided with a positioning ring (46) that is threadedly connected to it. The positioning ring (46) is used to restrict the top ball (43) from coming out of the docking seat (41).
8. The rapidly detectable filter according to claim 6, characterized in that: The top pressing member (42) is provided with a pull rod (47) extending out of the interface (45).
9. The rapidly detectable filter according to claim 1, characterized in that: It also includes differential pressure sensors.