An integrated vehicle-mounted purifier airtightness detection device
By designing an adjustable support frame and sealing components, the problem that existing devices can only support purifiers of a single diameter is solved, achieving stable fixation and sealing for purifiers of different specifications, thus improving the applicability and testing effect of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING XINHUILIAN TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-12
AI Technical Summary
Existing airtightness testing devices for air purifiers can only support air purifier bodies of a single diameter, which is not very practical and cannot be adapted to air purifiers of different sizes.
An airtightness testing device was designed, comprising a base plate, a support frame, a sealing component, and an adjustment mechanism. Through the adjustable support frame and sealing components, it can adapt to different specifications of air purifier bodies, achieving stable fixation and sealing.
It achieves stable fixation and sealing of purifiers of different specifications, improves the applicability of the equipment, and ensures the comprehensiveness and accuracy of airtightness testing.
Smart Images

Figure CN224353987U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airtightness testing technology, and in particular to an integrated airtightness testing device for vehicle air purifiers. Background Technology
[0002] As a crucial device for improving in-vehicle air quality, the airtightness of integrated car air purifiers directly affects their purification effect and lifespan. If an integrated car air purifier has airtightness issues, unfiltered outside air will enter, leading to a decline in purified air quality. Furthermore, it may damage internal components such as the motor and filter due to moisture or dust. However, existing car airtightness testing devices have a fixed structure, limiting their ability to test only a single type of component. This results in limited applicability and ultimately, suboptimal performance.
[0003] To address the above issues, patent document CN221260233U discloses an airtightness testing device for air purifiers, belonging to the field of airtightness testing technology. This airtightness testing device includes a base and positioning plates installed on both sides of the top surface of the base. A driving assembly is installed in the base, which drives the two positioning plates to move towards each other. Support frames are symmetrically fixed at the center of the top surface of the base. An installation tube is embedded in the center of each of the two positioning plates. A sealing assembly is provided at one end of each of the two installation tubes, and the other ends of the two installation tubes are respectively connected to an air pump and the main body of the testing device. Support parts are fixed at the top of each of the two support frames, and the main body of the air purifier is snapped together between the two support parts. This airtightness testing device prevents the main body of the air purifier from being unable to move due to clamping devices, improving the sealing performance of the two ends of the main body of the air purifier.
[0004] However, the existing airtightness testing devices for air purifiers have a fixed structure for the support frame used to support the main body of the air purifier, which can only support the main body of the air purifier with a single diameter, making them less practical. Utility Model Content
[0005] The purpose of this invention is to provide an integrated airtightness detection device for vehicle air purifiers, which solves the problem.
[0006] To achieve the above objectives, this utility model provides an integrated vehicle air purifier air tightness detection device, including a base plate, two support frames, a sealing assembly, and an adjustment mechanism. The base plate has two support frames arranged in a middle support, and the sealing assembly is also provided on the base plate.
[0007] Each support frame has a sliding abutment block at its top via a slider. A first threaded rod is rotatably mounted on one side of each support frame. The end of the first threaded rod near the corresponding abutment block is connected to the abutment block via a first connecting bearing. A first rotating handwheel is fixedly mounted on the end of the first threaded rod away from the corresponding abutment block. The sealing assembly includes a movable frame, a positive and negative threaded screw component, and two seals. The movable frame is mounted on one side of the upper surface of the base plate and slidably connected to the base plate. The positive and negative threaded screw component is mounted on the movable frame. Two seals are provided at the output end of the positive and negative threaded screw component, respectively located on both sides of the air purifier body under test. A driving component is also provided on the upper surface of the base plate, used to drive the movable frame to slide on the base plate. Each support frame has a segmented structure, and a push rod is provided inside each support frame to adjust the overall height of the support frame.
[0008] The driving component includes a fixed plate, a second threaded rod, a second rotating handwheel, and a second connecting bearing. The fixed plate is fixedly disposed on the side of the movable frame away from the support frame. The second threaded rod is threadedly connected to the fixed plate. The end of the second threaded rod near the movable frame is connected to the movable frame through the second connecting bearing. The second rotating handwheel is disposed on the end of the second threaded rod away from the movable frame.
[0009] The base plate has two sliding grooves on the side of its upper surface and two sliding feet on the bottom of the movable frame. Each sliding foot is slidably connected to one of the sliding grooves.
[0010] Both the first and second rotating handwheels have anti-slip textures on their outer side walls.
[0011] Each of the first connecting bearings and the second connecting bearings is provided with a fixing ring, and the fixing ring is connected to the corresponding abutment block and the movable frame.
[0012] This utility model discloses an integrated vehicle air purifier airtightness testing device, comprising a base plate, two support frames, a sealing assembly, and an adjustment mechanism. The adjustment mechanism includes two first threaded rods, two first connecting bearings, two first rotating handwheels, a drive component, and two push rods. The air purifier body to be tested is placed on the top of the two support frames. By rotating the first threaded rods with the first rotating handwheels, the first connecting bearings push the abutment block to slide on the top of the support frame, thereby fixing the air purifier body. By driving the drive component, the moving frame slides on the side of the base plate to adjust the position of the sealing component. After the position of the sealing component is aligned with the axial direction of the air purifier body, the push rods are used to adjust the overall height of the support frame so that the two ends of the air purifier body correspond to the two sealing components. With the above structure, it can be adapted to air purifier bodies of different specifications, making it more practical. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a structural schematic diagram of the integrated vehicle airtightness detection device provided by this utility model.
[0015] Figure 2 This utility model provides Figure 1 Enlarged view of the local structure at point A.
[0016] Figure 3 This utility model provides Figure 1 A structural diagram from another perspective.
[0017] Figure 4 This utility model provides Figure 3 Enlarged view of the local structure at point B.
[0018] Figure 5 This is a schematic diagram of the disassembled structure of the support frame provided by this utility model.
[0019] 101-Base plate, 102-Support frame, 103-First threaded rod, 104-First connecting bearing, 105-First rotating handwheel, 106-Push rod, 107-Fixing plate, 108-Second threaded rod, 109-Second rotating handwheel, 110-Second connecting bearing, 111-Slider, 112-Holding block, 113-Moving frame, 114-Positive and negative threaded screw components, 115-Seal, 116-Slide groove, 117-Sliding foot, 118-Anti-slip texture, 119-Fixing ring. Detailed Implementation
[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] Please see Figures 1 to 5 ,in Figure 1 This is a structural diagram of an integrated vehicle air purifier air tightness testing device. Figure 2 yes Figure 1 Enlarged view of the local structure at point A. Figure 3 yes Figure 1 Another structural diagram from the perspective of Figure 4 yes Figure 3 Enlarged view of the local structure at point B. Figure 5 This is a schematic diagram of the disassembled structure of the support frame.
[0022] This utility model provides an integrated vehicle air purifier air tightness testing device, comprising a base plate 101, two support frames 102, a sealing assembly, and an adjustment mechanism. The adjustment mechanism includes two first threaded rods 103, two first connecting bearings 104, two first rotating handwheels 105, a driving component, and two push rods 106. The driving component includes a fixed plate 107, a second threaded rod 108, a second rotating handwheel 109, and a second connecting bearing 110. This solution solves the problem in existing air tightness testing devices where the support frame 102 for supporting the purifier body is fixed and can only support purifier bodies of a single diameter, resulting in poor practicality. Therefore, this solution can be applied to the structure of an integrated vehicle air purifier air tightness testing device.
[0023] In this specific embodiment, two support frames 102 are provided in the middle of the base plate 101. A sealing assembly is also provided on the base plate 101. Each support frame 102 has a sliding abutment block 112 at its top via a slider 111. A first threaded rod 103 is rotatably mounted on one side of each support frame 102. The end of the first threaded rod 103 near the corresponding abutment block 112 is connected to the abutment block 112 via a first connecting bearing 104. A first rotating handwheel 105 is fixedly mounted on the end of the first threaded rod 103 away from the corresponding abutment block 112. The sealing assembly includes... The device includes a movable frame 113, a positive and negative threaded screw component 114, and two seals 115. The movable frame 113 is mounted on one side of the upper surface of the base plate 101 and is slidably connected to the base plate 101. The positive and negative threaded screw component 114 is mounted on the movable frame 113. The output end of the positive and negative threaded screw component 114 is provided with two seals 115, which are located on both sides of the air purifier body under test. The upper surface of the base plate 101 is also provided with a driving component, which is used to drive the movable frame 113 to slide on the base plate 101. Each support frame 102 is a segmented structure. Each support frame 102 is internally equipped with a push rod 106. The push rod 106 adjusts the overall height of the support frame 102. The purifier body to be tested is placed on the top of the two support frames 102. By rotating the first rotating handwheel 105, the first threaded rod 103 is rotated, thereby pushing the abutment block 112 to slide on the top of the support frame 102 under the action of the first connecting bearing 104, thus completing the fixation of the purifier body. By driving the driving component, the moving frame 113 is driven to slide on the side of the base plate 101, adjusting the position of the sealing member 115 so that the position of the sealing member 115 is aligned with the base plate 101. After the purifier body is aligned axially, the overall height of the support frame 102 is adjusted using the push rod 106 (here, the push rod 106 can be an electric push rod 106 or a pneumatic push rod 106), so that the two ends of the purifier body correspond to the two sealing elements 115. Then, the positive and negative threaded screw components 114 drive the sealing elements 115 to move, so that the sealing elements 115 are connected to the ends of the purifier body. This facilitates the subsequent use of a testing device to complete the airtightness test of the purifier body (the testing process has been disclosed in the prior art, so it will not be described in detail in this technical solution). With the above structure, it can be adapted to purifier bodies of different specifications, making it more practical.
[0024] The fixing plate 107 is fixedly disposed on the side of the movable frame 113 away from the support frame 102. The fixing plate 107 is threadedly connected to the second threaded rod 108. The end of the second threaded rod 108 near the movable frame 113 is connected to the movable frame 113 through the second connecting bearing 110. The end of the second threaded rod 108 away from the movable frame 113 is provided with a second rotating handwheel 109. Rotating the second rotating handwheel 109 drives the second threaded rod 108 to rotate. With the cooperation of the second connecting bearing 110, the movable frame 113 is driven to slide on the side of the support frame 102, thereby completing the adjustment of the position of the seal 115.
[0025] Secondly, two sliding grooves 116 are provided on the side of the upper surface of the base plate 101, and two sliding feet 117 are provided on the bottom of the movable frame 113. Each sliding foot 117 is slidably connected to one of the sliding grooves 116. Through the arrangement of the sliding grooves 116 and the sliding feet 117, the movable frame 113 is more stable when sliding on the base plate 101.
[0026] Meanwhile, anti-slip textures 118 are provided on the outer side walls of the first rotating handwheel 105 and the second rotating handwheel 109. The anti-slip textures 118 make it easier to operate the first rotating handwheel 105 and the second rotating handwheel 109.
[0027] In addition, each of the first connecting bearing 104 and the second connecting bearing 110 is provided with a fixing ring 119. The fixing ring 119 is connected to the corresponding abutment block 112 and the movable frame 113. The installation of the first connecting bearing 104 and the second connecting bearing 110 is completed by setting the fixing ring 119.
[0028] When using the integrated vehicle air purifier air tightness testing device of this utility model, the purifier body to be tested is placed on the top of the two support frames 102. By rotating the first rotating handwheel 105, the first threaded rod 103 is rotated, thereby pushing the abutment block 112 to slide on the top of the support frame 102 under the action of the first connecting bearing 104, thus completing the fixation of the purifier body. By rotating the second rotating handwheel 109, the second threaded rod 108 is driven to rotate, and with the cooperation of the second connecting bearing 110, the movable frame 113 is driven on the support frame 102. The side sliding mechanism adjusts the position of the seal 115 so that its position aligns with the axial direction of the purifier body. Then, the push rod 106 adjusts the overall height of the support frame 102 so that both ends of the purifier body correspond to the two seals 115. Finally, the positive and negative threaded screw component 114 drives the seal 115 to move, connecting it to the end of the purifier body. This facilitates subsequent testing of the purifier body's airtightness using a detection device. This structure is adaptable to purifier bodies of different specifications, enhancing its practicality.
[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. An integrated vehicle air purifier air tightness testing device, comprising a base plate, two support frames, and a sealing assembly, wherein the two support frames are provided opposite each other in the middle of the base plate, and the sealing assembly is also provided on the base plate, characterized in that, It also includes adjustment mechanisms; The adjustment mechanism includes two first threaded rods, two first connecting bearings, two first rotating handwheels, a drive component, and two push rods. Each support frame has a sliding abutment block at its top via a slider. One side of each support frame is rotatably equipped with a first threaded rod. The end of the first threaded rod near the corresponding abutment block is connected to the abutment block via the first connecting bearing. The end of the first threaded rod away from the corresponding abutment block is fixedly equipped with a first rotating handwheel. The sealing assembly includes a movable frame, a positive and negative threaded screw component, and two seals. The movable frame is mounted on one side of the upper surface of the base plate and slidably connected to the base plate. The positive and negative threaded screw component is mounted on the movable frame. Two seals are provided at the output end of the positive and negative threaded screw component, respectively located on both sides of the purifier body under test. The drive component is also provided on the upper surface of the base plate, and is used to drive the movable frame to slide on the base plate. Each support frame has a segmented structure, and each support frame has a push rod inside, which adjusts the overall height of the support frame.
2. The integrated vehicle air purifier air tightness detection device as described in claim 1, characterized in that, The driving component includes a fixed plate, a second threaded rod, a second rotating handwheel, and a second connecting bearing. The fixed plate is fixedly disposed on the side of the movable frame away from the support frame. The second threaded rod is threadedly connected to the fixed plate. The end of the second threaded rod near the movable frame is connected to the movable frame through the second connecting bearing. The second rotating handwheel is disposed at the end of the second threaded rod away from the movable frame.
3. The integrated vehicle air purifier air tightness detection device as described in claim 2, characterized in that, The upper surface of the base plate has two sliding grooves on its side, and the bottom of the movable frame has two sliding feet, each of which is slidably connected to one of the sliding grooves.
4. The integrated vehicle air purifier air tightness detection device as described in claim 3, characterized in that, Both the first and second rotating handwheels have anti-slip textures on their outer side walls.
5. The integrated vehicle air purifier air tightness detection device as described in claim 4, characterized in that, Each of the first connecting bearings and the second connecting bearings is provided with a retaining ring, which is connected to the corresponding abutment block and the movable frame.