Thin film moisture permeability tester

Abstract

The utility model relates to the technical field of moisture permeability testing instruments, and discloses a film moisture permeability testing instrument which comprises a testing instrument body, a cabinet door is hinged to the front face of the testing instrument body, a partition plate is fixedly connected to the inner wall of the testing instrument body, an adjusting assembly is installed on the top of the partition plate, and the adjusting assembly comprises a driving motor. The output end of the driving motor is fixedly connected with a rotating rod, and the surface of the rotating rod is fixedly connected with a fixed rotating disc. According to the moisture permeable cup fixing device, the adjusting assembly is arranged, the driving motor is used for driving the rotating rod to rotate, then the fixed rotating disc, the opening sleeve and the mounting table rotate synchronously, moisture permeable cups of different sizes can be stably fixed through cooperation with the synergistic effect of the threaded rod, the threaded sleeve, the limiting plate, the limiting sleeve and the arc-shaped plate, and it is ensured that the moisture permeable cups are tightly attached to the opening sleeve; therefore, the tester is suitable for testing the moisture permeation amount of moisture permeation cups of various specifications, and the universality and the application range of the tester are improved.

Description

A membrane moisture permeability tester Technical Field

[0001] This utility model relates to the technical field of moisture permeability testers, specifically a membrane moisture permeability tester. Background Technology

[0002] A moisture permeability tester is a device used to test the moisture permeability of materials. Its working principle is based on the permeation cup weighing method. At a certain temperature, a specific humidity difference is created on both sides of the sample, allowing water vapor to permeate through the sample into the dry side. The water vapor permeability and other parameters of the sample are determined by measuring the change in the weight of the permeation cup over time. This instrument is widely applicable to the determination of water vapor permeability in various materials such as plastic films, composite films, sheets, high-barrier materials, backing sheets, metal foils, waterproof membranes, building insulation materials, and medical materials.

[0003] Existing membrane moisture permeability testers typically use special clamps or adhesives to fix the moisture permeation cups. These methods are either cumbersome, requiring frequent clamp changes to accommodate different sizes of moisture permeation cups, or they use a fixed turntable that can only hold moisture permeation cups of a limited diameter for membrane testing. This means that when testing membranes of different sizes, the turntable needs to be changed to perform the test. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a membrane moisture permeability tester, including a tester body, a cabinet door hinged to the front of the tester body, a partition fixedly connected to the inner wall of the tester body, and an adjustment component installed on the top of the partition.

[0005] The adjustment assembly includes a drive motor, a rotating rod fixedly connected to the output end of the drive motor, a fixed turntable fixedly connected to the surface of the rotating rod, an open sleeve fixedly connected to the top of the fixed turntable, a mounting platform fixedly connected to the surface of the open sleeve, a threaded sleeve fixedly connected to the front of the mounting platform, a threaded rod threadedly connected to the inside of the threaded sleeve, a limit plate fixedly connected to the front end of the threaded rod, a limit sleeve fitted onto the surface of the limit plate, and an arc-shaped plate fixedly connected to the front end of the limit sleeve.

[0006] The above technical solution uses a drive motor as a power source. Its output drives a rotating rod, which in turn rotates a fixed turntable, causing the opening sleeve and mounting platform to rotate synchronously. When the moisture-permeable cup needs to be fixed, the threaded rod rotates within the threaded sleeve and moves back and forth, causing the limiting plate and limiting sleeve to move towards the surface of the moisture-permeable cup. Ultimately, the arc-shaped plate fixes the moisture-permeable cup within the opening sleeve, with the cup opening contacting the top of the opening sleeve. After starting the drive motor, the rotating rod drives the fixed turntable to rotate, thus performing a moisture permeability test on the film surface of the moisture-permeable cup. This adjustable assembly allows for the fixing and testing of moisture-permeable cups of different sizes.

[0007] As a further improvement to the above solution, two fixed turntables are provided, and the two fixed turntables are evenly distributed on the surface with respect to the center of the front of the rotating rod.

[0008] As a further improvement to the above solution, the number of the opening sleeves is set to four, and the four opening sleeves are symmetrically and evenly distributed on the surface with respect to the top center of the fixed turntable.

[0009] The above technical solution allows for the simultaneous placement of multiple moisture permeation cups by symmetrically arranging multiple open sleeves, enabling batch testing and improving testing efficiency. Furthermore, the symmetrical distribution of the open sleeves ensures uniform force distribution during rotation, preventing shaking or damage caused by uneven localized force.

[0010] As a further improvement to the above solution, the front end of the threaded rod penetrates the inner wall of the mounting platform.

[0011] The above technical solution enables the threaded rod to rotate freely and move back and forth within the mounting platform, ensuring that the threaded rod can smoothly drive the limiting plate, limiting sleeve, and arc plate to move towards the surface of the moisture permeation cup, thereby fixing the moisture permeation cup and providing a solid foundation for moisture permeation testing.

[0012] As a further improvement to the above solution, the arc-shaped plate is located between the mounting platform and the opening sleeve.

[0013] With the above technical solution, when the arc plate moves toward the surface of the permeable cup, it can firmly fix the permeable cup in the opening sleeve from the side without affecting the contact seal between the permeable cup and the top of the opening sleeve, thus ensuring the stability of the permeable cup's position during the test.

[0014] As a further improvement to the above solution, an observation window is fixedly connected to the front of the cabinet door, a control panel is installed on the front of the tester body, and self-locking casters are installed on the bottom of the tester body.

[0015] Through the above technical solution, an observation window is set on the front of the cabinet door, which allows operators to observe the internal condition of the tester at any time during the testing process. The status of the moisture permeation cup and membrane can be understood without opening the cabinet door, avoiding interference to the testing environment that may be caused by frequent opening and closing of the cabinet door. At the same time, the control panel installed on the front of the tester allows operators to set and control various parameters, improving the convenience of operation and the controllability of testing. The self-locking universal wheels installed at the bottom facilitate the movement and transportation of the tester, enabling it to flexibly carry out testing work in different positions and meet the needs of diverse testing scenarios.

[0016] As a further improvement to the above solution, the number of self-locking casters is set to four, and the four self-locking casters are evenly distributed on the surface with respect to the center of the bottom of the tester body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention, by setting up an adjustment component, uses a drive motor to rotate a rotating rod, thereby causing the fixed turntable, the open sleeve, and the mounting platform to rotate synchronously. At the same time, with the synergistic effect of the threaded rod, the threaded sleeve, the limiting plate, the limiting sleeve, and the arc plate, it can stably fix moisture permeation cups of different sizes, ensuring that the moisture permeation cups are tightly fitted to the open sleeve. This allows it to adapt to moisture permeation cups of various specifications for moisture permeation testing, improving the versatility and applicability of the testing instrument. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 is a schematic diagram of the overall bottom structure of this utility model;

[0021] Figure 3 is a schematic diagram of the overall internal structure of this utility model;

[0022] Figure 4 is a schematic diagram of the overall structure of the adjustment component of this utility model;

[0023] Figure 5 is a schematic diagram of the overall connection structure of the fixed turntable of this utility model.

[0024] In the diagram: 1. Tester body; 2. Cabinet door; 3. Partition; 4. Adjustment assembly; 41. Drive motor; 42. Rotating rod; 43. Fixed turntable; 44. Opening sleeve; 45. Mounting platform; 46. Threaded sleeve; 47. Threaded rod; 48. Limiting plate; 49. Limiting sleeve; 410. Arc plate; 5. Observation window; 6. Control panel; 7. Self-locking casters. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Referring to Figures 1-5, a membrane moisture permeability tester of this embodiment includes a tester body 1, a cabinet door 2 hinged to the front of the tester body 1, a partition 3 fixedly connected to the inner wall of the tester body 1, and an adjustment component 4 installed on the top of the partition 3.

[0028] The adjustment assembly 4 includes a drive motor 41. A rotating rod 42 is fixedly connected to the output end of the drive motor 41. A fixed turntable 43 is fixedly connected to the surface of the rotating rod 42. An open sleeve 44 is fixedly connected to the top of the fixed turntable 43. A mounting platform 45 is fixedly connected to the surface of the open sleeve 44. A threaded sleeve 46 is fixedly connected to the front of the mounting platform 45. A threaded rod 47 is threadedly connected inside the threaded sleeve 46. A limiting plate 48 is fixedly connected to the front end of the threaded rod 47. A limiting sleeve 49 is sleeved on the surface of the limiting plate 48. An arc-shaped plate 410 is fixedly connected to the front end of the limiting sleeve 49. When the handle is turned, the threaded rod 47 rotates inside the threaded sleeve 46 and moves back and forth inside the threaded sleeve 46. This causes the front end of the threaded rod 47 to drive the limiting sleeve 49 to move towards the surface of the permeable cup until the permeable cup is fixed to the surface of the open sleeve 44 and contacts it. At the same time, the extended part of the cup mouth of the permeable cup contacts the top of the open sleeve 44. At this time, the permeable cup is completely fixed inside the open sleeve 44.

[0029] There are two fixed turntables 43, which are evenly distributed on the surface with respect to the center of the front of the rotating rod 42.

[0030] The number of opening sleeves 44 is set to four, and the four opening sleeves 44 are evenly distributed on the surface symmetrically with respect to the top center of the fixed turntable 43.

[0031] The front end of the threaded rod 47 penetrates the inner wall of the mounting platform 45.

[0032] The curved plate 410 is located between the mounting platform 45 and the opening sleeve 44.

[0033] An observation window 5 is fixedly connected to the front of the cabinet door 2, a control panel 6 is installed on the front of the tester body 1, and a self-locking caster wheel 7 is installed on the bottom of the tester body 1.

[0034] The number of self-locking casters 7 is set to four, and the four self-locking casters 7 are evenly distributed on the surface with the bottom center of the tester body 1 symmetrically.

[0035] The implementation principle of the membrane moisture permeability tester in this embodiment is as follows: When performing the membrane moisture permeability test, the membrane is first fixed on the surface of the moisture permeability cup, and then the moisture permeability cup is fitted inside the open sleeve 44. By rotating the threaded rod 47 with a throttle, the threaded rod 47 rotates inside the threaded sleeve 46 and moves back and forth inside the threaded sleeve 46, so that the front end of the threaded rod 47 drives the limiting sleeve 49 to move towards the surface of the moisture permeability cup until the moisture permeability cup is fixed to the surface of the open sleeve 44 and contacts it. At the same time, the extended position of the mouth of the moisture permeability cup contacts the top of the open sleeve 44. At this time, the moisture permeability cup is completely fixed inside the open sleeve 44. The drive motor 41 is started, and the output end of the drive motor 41 drives the rotating rod 42 to rotate. The rotation of the rotating rod 42 drives the fixed turntable 43 to rotate, and the moisture permeability test is performed on the membrane on the surface of the moisture permeability cup inside the open sleeve 44. The arc plate 410 can be used to fix and monitor the membrane on the moisture permeability cup that is smaller than the diameter of the open sleeve 44.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A membrane moisture permeability tester, characterized in that: The instrument includes a tester body (1), a cabinet door (2) is hinged to the front of the tester body (1), a partition (3) is fixedly connected to the inner wall of the tester body (1), and an adjustment component (4) is installed on the top of the partition (3); the adjustment component (4) includes a drive motor (41), a rotating rod (42) is fixedly connected to the output end of the drive motor (41), a fixed turntable (43) is fixedly connected to the surface of the rotating rod (42), an open sleeve (44) is fixedly connected to the top of the fixed turntable (43), a mounting platform (45) is fixedly connected to the surface of the open sleeve (44), a threaded sleeve (46) is fixedly connected to the front of the mounting platform (45), a threaded rod (47) is threaded inside the threaded sleeve (46), a limiting plate (48) is fixedly connected to the front end of the threaded rod (47), a limiting sleeve (49) is sleeved on the surface of the limiting plate (48), and an arc plate (410) is fixedly connected to the front end of the limiting sleeve (49).

2. The membrane moisture permeability tester according to claim 1, characterized in that: There are two fixed turntables (43), which are evenly distributed on the surface with the center of the front of the rotating rod (42) symmetrically.

3. The membrane moisture permeability tester according to claim 1, characterized in that: The number of the opening sleeves (44) is set to four, and the four opening sleeves (44) are evenly distributed on the surface with symmetry about the top center of the fixed turntable (43).

4. The membrane moisture permeability tester according to claim 1, characterized in that: The front end of the threaded rod (47) penetrates the inner wall of the mounting platform (45).

5. A membrane moisture permeability tester according to claim 1, characterized in that: The arc-shaped plate (410) is located between the mounting platform (45) and the opening sleeve (44).

6. A membrane moisture permeability tester according to claim 1, characterized in that: An observation window (5) is fixedly connected to the front of the cabinet door (2), a control panel (6) is installed on the front of the tester body (1), and a self-locking caster wheel (7) is installed at the bottom of the tester body (1).

7. A membrane moisture permeability tester according to claim 6, characterized in that: The number of self-locking casters (7) is set to four, and the four self-locking casters (7) are evenly distributed on the surface with the bottom center of the tester body (1) symmetrical.

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