Rubber and plastic insulation board performance detection device

Abstract

The utility model discloses a rubber and plastic insulation board performance detection device which comprises a detection platform, the detection platform is provided with a through hole, a heating member moving in the vertical direction is arranged above the through hole, and a detection base capable of moving in the vertical direction is arranged below the through hole. A detection point a is pre-embedded in the top surface of the detection platform, a detection point b is pre-embedded in the corner position of the inner side of the detection base, and a detection point c is pre-embedded in the center position of the bottom of the detection base. Through the arrangement of the heating element and the detection base, the thermal conductivity of the deformed rubber and plastic insulation board is simulated and detected, and the rubber and plastic insulation board is extruded into the detection base to form detection samples with different deformation degrees by changing the distance between the detection base and the through hole; therefore, the thermal conductivity values of the rubber and plastic insulation board under different deformation degrees are obtained, the safety performance of the rubber and plastic insulation board is judged, and data support is provided for improving the safety performance of the rubber and plastic insulation board.

Description

Technical Field

[0001] This utility model relates to the field of insulation board performance testing technology, specifically to a rubber and plastic insulation board performance testing device. Background Technology

[0002] Rubber and plastic insulation boards are commonly used in the construction, industrial, transportation, and home appliance industries, such as wall insulation, door and window perimeter insulation, equipment insulation, and automotive heat insulation.

[0003] The general method for testing the thermal conductivity of rubber and plastic insulation boards is the protective hot plate method. During the test, two parallel hot plates are used: one is a heating plate, providing a stable heat flow; the other is a cooling plate, absorbing the heat passing through the sample. The rubber and plastic insulation board sample is sandwiched between these two hot plates. The testing device is turned on, and the heating plate begins to heat up and provide a stable heat flow. Temperature sensors measure the temperatures of the heating plate, cooling plate, and both sides of the sample. When the temperature reaches a stable state—that is, the temperature difference between two consecutive measurements is less than a certain value (e.g., 0.01℃)—the temperature value at this point is recorded. The thermal conductivity is then calculated using Fourier's law.

[0004] The values ​​measured above using two parallel hot plates to clamp the rubber and plastic insulation board represent the thermal conductivity of the rubber and plastic insulation board when it is not deformed. However, in many cases, the rubber and plastic insulation board will undergo certain deformation, such as insulation around doors and windows, insulation of vehicles and equipment, and deformation at the location where the insulation board is used due to accidents. In such cases, the thermal conductivity after deformation also needs to be further measured to improve the safety performance of the rubber and plastic insulation board. Utility Model Content

[0005] The purpose of this invention is to provide a performance testing device for rubber and plastic insulation boards to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a performance testing device for rubber and plastic insulation boards, comprising a testing platform, a through hole on the testing platform, a heating element that moves vertically above the through hole, a testing base that moves vertically below the through hole, a testing point a pre-embedded on the top surface of the testing platform, a testing point b pre-embedded at the inner corner of the testing base, and a testing point c pre-embedded at the center of the bottom of the testing base.

[0007] Furthermore, a limit bar is fixedly connected to the top of the detection platform.

[0008] Furthermore, a second support frame is fixedly connected to the bottom of the testing platform, and a lead screw is threaded onto the second support frame. The top of the lead screw is connected to the bottom of the testing base via a bearing.

[0009] Furthermore, the bottom of the detection base is fixedly connected to two symmetrically arranged guide rods, and the other end of the guide rods is slidably mounted on the second support frame.

[0010] Furthermore, a first support frame is fixedly connected to the top of the testing platform, an electric telescopic rod is installed on the first support frame, a fixed plate is fixedly connected to the movable end of the electric telescopic rod, and the heating element is installed on the fixed plate.

[0011] Furthermore, the guide rod is engraved with scale values ​​for recording the displacement.

[0012] The beneficial effects of the rubber and plastic insulation board performance testing device provided by this utility model in the above technical solution are as follows:

[0013] This invention uses a heating element and a testing base to simulate and test the thermal conductivity of a deformed rubber and plastic insulation board. By changing the distance between the testing base and the through hole, the rubber and plastic insulation board is squeezed into the testing base to form test samples with different degrees of deformation. This allows the thermal conductivity values ​​of the rubber and plastic insulation board under different degrees of deformation to be obtained, thereby determining the safety performance of the rubber and plastic insulation board and providing data support for improving the safety performance of rubber and plastic insulation boards.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0015] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A structural schematic diagram provided for an embodiment of this utility model;

[0018] Figure 2 A schematic diagram of the standard deformed state structure provided for an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of a non-standard deformed state structure provided for an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Testing platform; 11. Limiting strip; 12. Through hole; 2. First support frame; 3. Second support frame; 4. Heating element; 41. Fixing plate; 42. Electric telescopic rod; 5. Testing base; 51. Guide rod; 511. Scale value; 52. Lead screw; 6. Bearing. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0023] Please see Figures 1-3A performance testing device for rubber and plastic insulation boards includes a testing platform 1 with a through hole 12. A limiting strip 11 is fixedly connected to the top of the testing platform 1, located around the through hole 12, to facilitate accurate data measurement after the rubber and plastic insulation board is placed in a suitable position. A heating element 4 that moves vertically is arranged above the through hole 12. The heating element 4 has horizontally arranged heating plates on both sides and a trapezoidal shape in the middle corresponding to the inner cavity of the testing base 5. A first support frame 2 is fixedly connected to the top of the testing platform 1, and a [missing information - likely a device or component] is mounted on the first support frame 2. An electric telescopic rod 42 is provided, with a fixed plate 41 fixedly connected to its movable end. A heating element 4 is mounted on the fixed plate 41. The electric telescopic rod 42 drives the heating element 4 to move vertically, completing the step of the heating element 4 pressing the rubber-plastic insulation board into the testing base 5. A testing base 5, which can move vertically, is located below the through hole 12. A second support frame 3 is fixedly connected to the bottom of the testing platform 1. A lead screw 52 is threaded onto the second support frame 3. The top of the lead screw 52 is connected to the bottom of the testing base 5 via a bearing 6. The inner... The outer ring of the bearing 6 is fixedly sleeved on the outside of the lead screw 52, ​​and the outer ring of the bearing 6 is embedded in the bottom of the detection base 5. The bearing 6 is designed so that when the lead screw 52, ​​which is threadedly connected to the second support frame 3, is rotated, the lead screw 52 drives the detection base 5 to move in the vertical direction without the detection base 5 rotating. Two symmetrically arranged guide rods 51 are fixedly connected to the bottom of the detection base 5. The other end of the guide rod 51 is slidably mounted on the second support frame 3. The guide rod 51 is engraved with a scale value 511 for recording the displacement. The guide rod 51 passes through the second support frame 3 and moves up and down on the detection base 5. At the same time, the two guide rods 51 play a guiding role. As the detection base 5 drives the guide rods 51 to move in the vertical direction, the scale value 511 corresponding to the bottom surface of the second support frame 3 is the displacement of the detection base 5. The top surface of the detection platform 1 has a detection point a pre-embedded. Detection point a is used to detect the thermal conductivity of the rubber and plastic insulation board when it is not deformed. Detection point b is pre-embedded at the inner corner of the detection base 5, and detection point c is pre-embedded at the bottom center of the detection base 5. Detection points b and c are used to detect the thermal conductivity values ​​of the deformation inflection point and the deformation center area, respectively.

[0024] For details, please refer to Figure 1 and Figure 2By rotating the lead screw 52, ​​the lead screw 52 drives the detection base 5 to move up and down in the vertical direction until the value of the corresponding scale value 511 on the bottom surface of the second support frame 3 stops at the specified value. Then, the rubber and plastic insulation board is placed into the limiting strip 11. Then, the electric telescopic rod 42 is activated, so that the movable end of the electric telescopic rod 42 drives the heating element 4 to move down, squeezing the rubber and plastic insulation board through the through hole 12 and pressing it into the detection base 5. At this time, the horizontal section of the heating element 4 just contacts the rubber and plastic insulation board. By recording the temperature of the three detection points a, b, and c, the temperature of the three detection points is measured repeatedly until the temperature stabilizes, that is, the temperature change between two adjacent measurements is less than 0.01℃. The thermal conductivity can then be calculated according to Fourier's law.

[0025] refer to Figure 1 and Figure 3 By rotating the lead screw 52 to change the distance between the detection base 5 and the through hole 12, the temperature at detection point b and detection point c after the temperature stabilizes under different deformation states of the rubber and plastic insulation board can be recorded, and the thermal conductivity can be calculated according to Fourier's law.

[0026] In this invention, the thermal conductivity of a deformed rubber and plastic insulation board is simulated by setting up a heating element 4 and a detection base 5. By changing the distance between the detection base 5 and the through hole 12, the rubber and plastic insulation board is squeezed into the detection base 5 to form test samples with different degrees of deformation, thereby obtaining the thermal conductivity values ​​of the rubber and plastic insulation board under different degrees of deformation. This is used to determine the safety performance of the rubber and plastic insulation board and to provide data support for improving the safety performance of the rubber and plastic insulation board.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A performance testing device for rubber and plastic insulation boards, comprising a testing platform (1), characterized in that: The testing platform (1) has a through hole (12), a heating element (4) that moves vertically is provided above the through hole (12), a testing base (5) that can move vertically is provided below the through hole (12), a testing point a is pre-embedded on the top surface of the testing platform (1), a testing point b is pre-embedded at the inner corner of the testing base (5), and a testing point c is pre-embedded at the bottom center of the testing base (5).

2. The performance testing device for rubber and plastic insulation boards according to claim 1, characterized in that, A limiting strip (11) is fixedly connected to the top of the detection platform (1).

3. The performance testing device for rubber and plastic insulation boards according to claim 1, characterized in that, The bottom of the testing platform (1) is fixedly connected to a second support frame (3), and a lead screw (52) is threaded onto the second support frame (3). The top of the lead screw (52) is connected to the bottom of the testing base (5) through a bearing (6).

4. The performance testing device for rubber and plastic insulation boards according to claim 3, characterized in that, The bottom of the detection base (5) is fixedly connected to two symmetrically arranged guide rods (51), and the other end of the guide rods (51) is slidably mounted on the second support frame (3).

5. The performance testing device for rubber and plastic insulation boards according to claim 1, characterized in that, The top of the testing platform (1) is fixedly connected to a first support frame (2), and an electric telescopic rod (42) is installed on the first support frame (2). The movable end of the electric telescopic rod (42) is fixedly connected to a fixing plate (41), and the heating element (4) is installed on the fixing plate (41).

6. The performance testing device for rubber and plastic insulation boards according to claim 4, characterized in that, The guide rod (51) is engraved with scale values ​​(511) for recording displacement.

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