A thermal insulation testing device for thermal insulation materials

Abstract

The application discloses a kind of heat insulation testing devices of heat insulation material, it is related to heat insulation testing device technical field, wherein, including support plate, the top of the support plate is fixedly installed hydraulic push rod, the bottom of the hydraulic push rod is fixedly installed connecting plate, the bottom of the connecting plate is fixedly installed first telescopic component near the position of four corners.The first motor is set in the application, the driving gear and the driven gear are engaged to rotate by the first motor work, and then the first rotating shaft is rotated, four fixed seats are rotated by the aid of connecting rod, four test benches are driven to position conversion, the effect that the material sample to be tested in test bench is position converted is realized, the effect that testing and material loading and unloading are carried out simultaneously is achieved, the purpose of multi-station testing and material loading and unloading integration is realized, so as to solve the problem that most heat insulation testing devices can only carry out single-station work at present, thus the problem that test efficiency is reduced to some extent is solved, and test efficiency is improved.

Description

Technical Field

[0001] This invention relates to a heat insulation testing device, and more particularly to a heat insulation testing device for heat insulation materials. Background Technology

[0002] Thermal insulation materials are materials that can impede the transfer of heat, also known as thermal insulation materials. Traditional thermal insulation materials include fiberglass, asbestos, rock wool, and silicates, while newer thermal insulation materials include aerogel felt and vacuum panels. Currently, during the manufacturing and use of thermal insulation materials, it is necessary to conduct thermal insulation tests in advance to ensure their effectiveness. This requires the use of thermal insulation testing equipment. However, most existing thermal insulation testing equipment has the drawback of limited functionality, which is not conducive to ensuring testing results and efficiency, and is inconvenient to use. Therefore, there is a need for a thermal insulation testing device with good performance and high efficiency to improve testing results and efficiency.

[0003] Currently, the thermal insulation testing device still has some defects and shortcomings in use. The specific areas that need improvement are as follows:

[0004] 1. Most current thermal insulation testing devices use a single station for testing and cannot provide multi-station testing, which is not conducive to achieving synchronization between testing and material loading and unloading. Therefore, it reduces the efficiency of continuous testing of multiple thermal insulation materials to a certain extent.

[0005] 2. Most current heat insulation testing devices cannot achieve the effect of moving the heating plate left, right, forward, and backward, which is not conducive to ensuring the comprehensiveness of the heating test and therefore cannot guarantee the accuracy of the test to a certain extent.

[0006] 3. Most current thermal insulation testing devices do not have the function of simulating the test environment, which limits the test environment and makes it difficult to ensure the diversity of tests;

[0007] 4. Most current thermal insulation testing devices require external pressure to limit the material, which is time-consuming and labor-intensive, and do not have the function of automatic limiting and canceling the limit, thus reducing the flexibility of thermal insulation testing devices to a certain extent.

[0008] Therefore, a thermal insulation testing device for thermal insulation materials is proposed to solve the above problems. Summary of the Invention

[0009] The purpose of this invention is to provide a thermal insulation testing device for thermal insulation materials, so as to solve the problems of low testing efficiency and poor results caused by the single-station and single-function thermal insulation testing process mentioned in the background art, as well as the problems that the inability to achieve multi-position moving heating and the limited testing environment reduce the accuracy and diversity of the testing process to a certain extent.

[0010] To achieve the above objectives, the present invention provides the following technical solution: A support plate is included, a hydraulic push rod is fixedly installed on the top of the support plate, a connecting plate is fixedly installed on the bottom end of the hydraulic push rod, a first telescopic assembly is fixedly installed near the four corners of the bottom of the connecting plate, a top cover is fixedly connected to the bottom end of the first telescopic assembly, two grooves are formed on the top of the top cover, a third motor is fixedly installed in each of the two grooves, a lead screw is fixedly connected to the output shaft of each of the third motors, a first threaded plate and a second threaded plate are threaded onto the surfaces of the two lead screws respectively, a first sliding rod and a second sliding rod are fixedly installed on the sides of the first threaded plate and the second threaded plate respectively, a connecting block is slidably connected to the surfaces of the first sliding rod and the second sliding rod, an electric push rod is fixedly installed at the bottom of the connecting block, and a heating plate is fixedly installed at the bottom end of the electric push rod.

[0011] A base is fixedly connected to the side of the support plate, and a drive assembly is fixedly installed on the top of the base. Four connecting rods are welded to the surface of the drive assembly, and a fixed seat is fixedly connected to one end of each of the four connecting rods. An extension plate is installed on the side of the fixed seat, and a second telescopic assembly is fixedly installed on the top of the extension plate near the four corners. A test platform is fixedly connected to the top of the second telescopic assembly.

[0012] As a preferred embodiment of the present invention, the drive assembly includes a first motor and a first bearing. The first motor and the first bearing are both fixedly mounted on the top of the base. The output shaft of the first motor is equipped with a drive gear through a coupling. A first rotating shaft is rotatably connected inside the first bearing. A driven gear is welded to the surface of the first rotating shaft. The drive gear and the driven gear are meshed and connected. Four connecting rods are welded to the surface of the first rotating shaft.

[0013] As a preferred embodiment of the present invention, the test bench has an internal equipment compartment, and a transmission assembly is installed inside the equipment compartment. The transmission assembly includes a second motor and a second bearing. The second motor and the second bearing are both fixedly installed at the bottom of the inner wall of the equipment compartment. The output shaft of the second motor is connected to a first transmission wheel via a connecting shaft. A second shaft is rotatably connected inside the second bearing. The second transmission wheel is welded to the surface of the second shaft. A transmission chain is tractively connected to the surfaces of the first transmission wheel and the second transmission wheel. A third bearing is fixedly connected to the top of the test bench. A third shaft is rotatably connected inside the third bearing. The output shaft of the second motor and the shaft end of the second shaft are welded to the bottom ends of the two third shafts. A clamping plate is fixedly connected to the top of the third shaft.

[0014] As a preferred embodiment of the present invention, both the first telescopic component and the second telescopic component include a fixed rod and a movable rod. One end of each of the two sets of fixed rods is fixedly connected to the bottom of the connecting plate and the top of the fixed seat, respectively. One end of each of the two sets of movable rods is fixedly connected to the top of the top cover and the bottom of the extension plate, respectively. The movable rod is slidably connected inside the fixed rod, and springs are sleeved on the surfaces of the fixed rod and the movable rod.

[0015] As a preferred embodiment of the present invention, a vibration assembly is installed between the fixed base and the test bench. The vibration assembly includes a mounting plate and a rack. The mounting plate and the rack are respectively fixedly connected to the top of the fixed base and the bottom of the test bench. A fourth motor is fixedly installed on the surface of the mounting plate. The output shaft of the fourth motor is connected to a half gear through a coupling. The teeth of the half gear mesh with the rack.

[0016] As a preferred embodiment of the present invention, two sliding grooves are provided at the bottom of the inner wall of the top cover, and a third sliding rod is fixedly installed in each of the two sliding grooves. A first sliding plate and a second sliding plate are slidably connected to the surfaces of the two third sliding rods, and the sides of the first sliding plate and the second sliding plate are fixedly connected to the first sliding rod and the second sliding rod, respectively.

[0017] As a preferred embodiment of the present invention, the top of the base is provided with a slide rail, and four pulleys are slidably connected in the slide rail. The four pulleys are respectively fixedly connected to the bottom of four fixed seats.

[0018] As a preferred embodiment of the present invention, brake wheels and casters are fixedly installed at the bottom of the support plate and the base, respectively, and a controller and a display screen are installed on the surface of the support plate.

[0019] As a preferred embodiment of the present invention, a heat insulation plate is installed inside the test bench, a vacuum pump is installed on the surface of the test bench, a second thermocouple sensor is installed at the four bottom corners of the heating plate, a first thermocouple sensor is installed at the four top corners and the center of the heat insulation plate, a thermal imager and a temperature sensor are installed inside the top cover, and a signal receiver and a signal transmitter are installed at the bottom of the top cover and the top of the extension plate, respectively.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention incorporates a first motor that drives a driving gear and a driven gear to rotate, thereby rotating a first rotating shaft. This shaft, via a connecting rod, rotates four fixed seats, causing them to change position. This, in turn, rotates four test platforms, effectively changing the position of the material sample within the test platforms. During rotation, the rotation of pulleys within the slide rails increases stability and support, allowing for simultaneous testing and material loading / unloading. This integrates multi-station testing with material loading / unloading, solving the problem that most current thermal insulation testing devices can only operate at a single station, thus reducing testing efficiency. This invention improves testing efficiency and ensures continuous testing.

[0022] 2. This invention incorporates a third motor. When the third motor operates, it drives the lead screw to rotate, causing the first or second threaded plate to move the first or second slide bar. Through the sliding engagement of the first and second sliding plates on the surface of the third slide bar, the connecting block drives the electric push rod to move back and forth or left and right, thereby causing the heating plate to move back and forth or left and right. This achieves the purpose of multi-position heating testing, thus solving the problem that most current heat insulation testing devices cannot flexibly adjust the heating position, resulting in poor heating uniformity, which to some extent affects the comprehensiveness of the heating test and reduces the accuracy of the test.

[0023] 3. This invention incorporates a fourth motor, which drives the half-gear to rotate. Through the meshing and disengagement of the half-gear and the rack, and with the sliding cooperation of the movable rod in the first and second telescopic components within the fixed rod and the elasticity of the spring, the test platform and the top rod are vibrated. During the vibration process, the insulation material is heated to test its insulation effect. This solves the problem that most current insulation testing devices cannot simulate the test environment, thus increasing the limitations of insulation testing to some extent, and achieves the purpose of multi-environment testing.

[0024] 4. This invention uses a vacuum pump to create a vacuum in the space between the top cover and the test platform, thereby simulating a vacuum environment and achieving the purpose of heating and testing the material sample in a vacuum environment, thus improving the diversity of testing.

[0025] 5. This invention uses a second motor to drive the first transmission wheel to rotate. With the help of the transmission chain, the second transmission wheel rotates, and then the output shaft of the second motor and the second rotating shaft drive the third rotating shaft to rotate, which in turn drives the clamping plate to rotate. This achieves the effect of limiting and releasing the insulation material, thus solving the problem of the test material sample falling off the groove during the test to a certain extent and ensuring the stability of the test. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention in AA cross-section;

[0029] Figure 3 This is a rear cross-sectional three-dimensional structural schematic diagram of the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention;

[0031] Figure 5 This is a three-dimensional structural diagram of the top cover in this invention, viewed from below.

[0032] Figure 6 This is an enlarged three-dimensional structural diagram of point A in the present invention;

[0033] Figure 7 This is an enlarged three-dimensional structural diagram of point B in the present invention;

[0034] Figure 8 This is an enlarged three-dimensional structural diagram of point C in the present invention.

[0035] The labels in the attached diagram are:

[0036] 1. Support plate; 2. Brake wheel; 3. Controller; 4. Display screen; 5. Hydraulic push rod; 6. Connecting plate; 7. Top cover; 8. Test bench; 9. First thermocouple sensor; 10. Vacuum pump; 11. Fixing base; 12. Signal transmitter; 13. Clamping plate; 14. Base; 15. Pulley; 16. Slide rail; 17. Universal wheel; 18. Drive assembly; 181. First motor; 182. Drive gear; 183. Driven gear; 184. First bearing; 185. First shaft; 19. Extension plate; 20. Heat insulation plate; 21. Connecting rod; 22. Thermal imager; 23. Temperature sensor; 24. Second thermocouple sensor; 25. Heating plate; 26. Connecting block; 27. Electric push rod; 28. Transmission assembly; 281. 282. Second motor; 283. Transmission chain; 284. First transmission wheel; 285. Second shaft; 286. Second transmission wheel; 287. Second bearing; 29. ​​Equipment compartment; 30. Groove; 31. Third motor; 32. Lead screw; 33. First threaded plate; 34. Second threaded plate; 35. Second slide bar; 36. First slide bar; 37. Third slide bar; 38. Slide groove; 39. Signal receiver; 40. First telescopic assembly; 401. Fixed rod; 402. Spring; 403. Movable rod; 41. Vibration assembly; 411. Half gear; 412. Fourth motor; 413. Gear rack; 414. Mounting plate; 42. Third bearing; 43. Third shaft; 44. Second telescopic assembly; 45. First sliding plate; 46. Second sliding plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-8 This invention provides a technical solution for a thermal insulation testing device for thermal insulation materials:

[0039] A thermal insulation testing device for thermal insulation materials includes a support plate 1. A hydraulic push rod 5 is fixedly installed on the top of the support plate 1, which can drive a connecting plate 6 to move up and down. This, in turn, drives a top cover 7 to move up and down via a first telescopic component 40, allowing the top cover 7 to open and close with a test platform 8. A connecting plate 6 is fixedly installed at the bottom of the hydraulic push rod 5. A first telescopic component 40 is fixedly installed near the four corners of the bottom of the connecting plate 6. The bottom of the first telescopic component 40 is fixedly connected to the top cover 7. Two grooves 30 are formed on the top of the top cover 7. A third motor 31 is fixedly installed in each of the two grooves 30, driving a lead screw 32 to rotate. Through the threaded connection between the lead screw 32 and the first threaded plate 33 and the second threaded plate 34, the first slide rod 36 or the second slide rod 35 can be moved left and right, thereby causing the connecting block 26 to move left and right or back and forth, thus driving an electric push rod 27 and a heating plate 25 to move, achieving the purpose of multi-position heating. Each output shaft of component 1 is fixedly connected to a lead screw 32. The surfaces of the two lead screws 32 are respectively threaded with a first threaded plate 33 and a second threaded plate 34. The sides of the first threaded plate 33 and the second threaded plate 34 are respectively fixedly installed with a first slide rod 36 and a second slide rod 35. The surfaces of the first slide rod 36 and the second slide rod 35 are slidably connected with a connecting block 26. The bottom of the connecting block 26 is fixedly installed with an electric push rod 27, which can drive the heating plate 25 to move up and down, so as to adjust the heating distance between the heating plate 25 and the insulation material. This facilitates the adjustment of the heating height according to the thickness of the insulation material. The bottom end of the electric push rod 27 is fixedly installed with a heating plate 25. The four corners of the bottom of the heating plate 25 are equipped with second thermocouple sensors 24, which can detect the temperature of the hot surface of the insulation material. The top cover 7 is equipped with a thermal imager 22 and a temperature sensor 23, which can respectively capture real-time images of the insulation material sample test process and monitor the test temperature to ensure the accuracy of the test.

[0040] A base 14 is fixedly connected to the side of the support plate 1. A drive assembly 18 is fixedly installed on the top of the base 14. Four connecting rods 21 are welded to the surface of the drive assembly 18. One end of each of the four connecting rods 21 is fixedly connected to a fixed seat 11. An extension plate 19 is installed on the side of the fixed seat 11. A second telescopic assembly 44 is fixedly installed near the four corners of the top of the extension plate 19. A test bench 8 is fixedly connected to the top of the second telescopic assembly 44. An equipment compartment 29 is opened inside the test bench 8. A transmission assembly 28 is installed inside the equipment compartment 29. A third bearing 42 is fixedly connected to the top of the test bench 8. A third rotating shaft 43 is rotatably connected inside the third bearing 42. A clamping plate 13 is fixedly connected to the top of the third rotating shaft 43, which can be used to test... The insulation material is positioned to prevent it from detaching from the test bench 8 during testing, ensuring test stability. An insulation plate 20 is installed inside the test bench 8. First thermocouple sensors 9 are installed at the four corners and center of the top of the insulation plate 20 to detect the cold surface temperature of the test sample. A vibration assembly 41 is installed between the fixed base 11 and the test bench 8. A vacuum pump 10 is installed on the surface of the test bench 8 to create a vacuum between the top cover 7 and the test bench 8, simulating the insulation performance and effect of the insulation material under vacuum conditions. A signal receiver 39 and a signal transmitter 12 are installed at the bottom of the top cover 7 and the top of the extension plate 19, respectively, to position the top cover 7 and the test bench 8, ensuring accurate docking.

[0041] The drive assembly 18 includes a first motor 181 and a first bearing 184. Both the first motor 181 and the first bearing 184 are fixedly mounted on the top of the base 14. The output shaft of the first motor 181 is equipped with a drive gear 182 via a coupling. A first rotating shaft 185 is rotatably connected inside the first bearing 184. A driven gear 183 is welded to the surface of the first rotating shaft 185. The drive gear 182 and the driven gear 183 are meshed together. Four connecting rods 21 are welded to the surface of the first rotating shaft 185. Under the action of the first motor 181 driving the drive gear 182 to rotate, the drive gear 182 and the driven gear 183 mesh together and rotate, thereby achieving the effect of driving the fixed base 11 to rotate through the connecting rods 21, achieving the purpose of driving multi-station conversion and realizing the integration of testing and material loading and unloading.

[0042] The transmission assembly 28 includes a second motor 281 and a second bearing 286. Both the second motor 281 and the second bearing 286 are fixedly installed at the bottom of the inner wall of the equipment compartment 29. The output shaft of the second motor 281 is connected to a first transmission wheel 283 via a connecting shaft. A second rotating shaft 284 is rotatably connected inside the second bearing 286. A second transmission wheel 285 is welded to the surface of the second rotating shaft 284. A transmission chain 282 is connected to the surfaces of the first transmission wheel 283 and the second transmission wheel 285. The output shaft of the second motor 281 and the shaft end of the second rotating shaft 284 are welded to the bottom ends of two third rotating shafts 43. Under the action of the second motor 281 driving the first transmission wheel 283 to rotate, the second transmission wheel 285 drives the second rotating shaft 284 to rotate through the transmission chain 282. In turn, the rotation of the output shaft of the second motor 281 and the rotation of the second rotating shaft 284 drive the two third rotating shafts 43 to rotate, thereby driving the two clamping plates 13 to rotate and achieve the purpose of limiting or canceling the limit of the material to be tested.

[0043] The first telescopic assembly 40 and the second telescopic assembly 44 both include a fixed rod 401 and a movable rod 403. One end of each of the two sets of fixed rods 401 is fixedly connected to the bottom of the connecting plate 6 and the top of the fixed seat 11, respectively. One end of each of the two sets of movable rods 403 is fixedly connected to the top of the top cover 7 and the bottom of the extension plate 19, respectively. The movable rod 403 is slidably connected inside the fixed rod 401. Springs 402 are sleeved on the surfaces of the fixed rod 401 and the movable rod 403.

[0044] The vibration assembly 41 includes a mounting plate 414 and a rack 413. The mounting plate 414 and the rack 413 are fixedly connected to the top of the fixed base 11 and the bottom of the test bench 8, respectively. A fourth motor 412 is fixedly mounted on the surface of the mounting plate 414. The output shaft of the fourth motor 412 is connected to a half gear 411 through a coupling. The teeth of the half gear 411 mesh with the rack 413. Under the action of the fourth motor 412 driving the half gear 411 to rotate, by means of the meshing and disengagement effect of the half gear 411 and the rack 413, through the sliding cooperation of the movable rod 403 in the first telescopic assembly 40 and the second telescopic assembly 44 within the fixed rod 401 and the elastic cooperation of the spring 402, the test bench 8 and the top cover 7 are driven to vibrate, thereby simulating the vibration test environment and improving the test diversity.

[0045] Two sliding grooves 38 are provided at the bottom of the inner wall of the top cover 7. A third sliding rod 37 is fixedly installed in each of the two sliding grooves 38. A first sliding plate 45 and a second sliding plate 46 are slidably connected to the surfaces of the two third sliding rods 37 respectively. The sides of the first sliding plate 45 and the second sliding plate 46 are fixedly connected to the first sliding rod 36 and the second sliding rod 35 respectively. With the sliding action of the first sliding plate 45 and the second sliding plate 46 on the surfaces of the two third sliding rods 37, the movement of the first sliding rod 36 and the second sliding rod 35 is more stable.

[0046] The top of the base 14 is provided with a slide rail 16, and four pulleys 15 are slidably connected in the slide rail 16. The four pulleys 15 are respectively fixedly connected to the bottom of the four fixed seats 11. By means of the sliding action of the pulleys 15 in the slide rail 16, the fixed seats 11 are supported and their rotation is made more stable.

[0047] Brake wheel 2 and caster wheel 17 are fixedly installed on the bottom of support plate 1 and base 14 respectively. Controller 3 and display screen 4 are installed on the surface of support plate 1. Controller 3 can be a computer or other control device to control the working status of electrical components in the testing device. Display screen 4 displays the test data of each sensor in real time.

[0048] Specific operation method of the present invention:

[0049] When testing thermal insulation materials, the sample to be tested is first placed in one of the four test benches 8. Then, the controller 3 controls the second motor 281 to rotate the first transmission wheel 283. Through the transmission chain 282, the second transmission wheel 285 rotates the second shaft 284. The rotation of the output shaft of the second motor 281 and the second shaft 284 then rotates the third shaft 43, causing the clamping plate 13 to rotate and limit the position of the sample to be tested within the test bench 8. Next, the controller 3 controls the hydraulic push rod 5 to move the connecting plate 6 downwards, causing the bottom of the top cover 7 to abut against the bottom of the extension plate 19, forming a sealed space. Then, the controller 3 controls the electric push rod 27 to move the heating plate 25 to a suitable distance from the sample to be tested. Finally, the controller 3 controls... The heating plate 25 is heated by the temperature sensor 23. After reaching the set value, the sample to be tested is heated and tested. After a period of time, the controller 3 controls the third motor 31 to work, which drives the lead screw 32 to rotate, causing the first threaded plate 33 or the second threaded plate 34 to move. With the movement of the first slide bar 36 or the second slide bar 35, the connecting block 26 moves back and forth or left and right, causing the heating plate 25 to move back and forth or left and right, so as to perform a multi-position uniform heating test on the sample to be tested. At the same time, during the test, the temperature sensor 23 collects temperature data, the thermal imager 22 collects images in real time, and the first thermocouple sensor and the second thermocouple sensor 24 collect the temperature of the hot and cold surfaces. The data is processed by the microprocessor in the controller 3 and then displayed and recorded in real time on the display screen 4.

[0050] During the test, depending on the test requirements, when a vacuum environment test is required, the vacuum pump 10 can be controlled by the controller 3 to evacuate the space between the top cover 7 and the test platform 8, and the test can be carried out simultaneously, and the data can be collected and recorded. When a vibration environment test is required, the fourth motor 412 can be controlled by the controller 3 to drive the half gear 411 to rotate. Through the meshing and disengagement with the rack 413, and with the cooperation of the first telescopic component 40 and the second telescopic component 44, vibration is generated between the top cover 7 and the test platform 8 to simulate a vibration environment, and the data can be collected and recorded.

[0051] After the material sample to be tested in one test bench 8 has been tested, the controller 3 can control the first motor 181 to work, drive the active gear 182 and the driven gear 183 to mesh and rotate, so that the first rotating shaft 185 drives the connecting rod 21 to rotate, rotating the other test bench 8 to below the top cover 7, and using the signal transmitter 12 to send a signal to the signal receiver 39 installed on the top cover 7 to achieve accurate positioning. After that, the above steps are repeated to perform another simulation test. At the same time, the staff can remove the tested material sample and prepare a new material sample for testing.

[0052] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0053] In this invention, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the thermal insulation of a thermal insulating material, comprising a support plate (1), characterised in that: A hydraulic push rod (5) is fixedly installed on the top of the support plate (1), and a connecting plate (6) is fixedly installed on the bottom end of the hydraulic push rod (5). A first telescopic assembly (40) is fixedly installed near the four corners of the bottom of the connecting plate (6). A top cover (7) is fixedly connected to the bottom end of the first telescopic assembly (40). Two grooves (30) are opened on the top of the top cover (7). A third motor (31) is fixedly installed in each of the two grooves (30). A lead screw is fixedly connected to the output shaft of each of the third motors (31). 32) The surfaces of the two lead screws (32) are respectively threaded with a first threaded plate (33) and a second threaded plate (34). The sides of the first threaded plate (33) and the second threaded plate (34) are respectively fixedly installed with a first slide rod (36) and a second slide rod (35). The surfaces of the first slide rod (36) and the second slide rod (35) are slidably connected with a connecting block (26). The bottom of the connecting block (26) is fixedly installed with an electric push rod (27). The bottom end of the electric push rod (27) is fixedly installed with a heating plate (25). A base (14) is fixedly connected to the side of the support plate (1), and a drive assembly (18) is fixedly installed on the top of the base (14). Four connecting rods (21) are welded to the surface of the drive assembly (18). One end of each of the four connecting rods (21) is fixedly connected to a fixed seat (11). An extension plate (19) is installed on the side of the fixed seat (11). A second telescopic assembly (44) is fixedly installed on the top of the extension plate (19) near the four corners. A test platform (8) is fixedly connected to the top of the second telescopic assembly (44).

2. A device for testing the thermal insulation of a thermal insulating material according to claim 1, characterized in that: The drive assembly (18) includes a first motor (181) and a first bearing (184). The first motor (181) and the first bearing (184) are both fixedly mounted on the top of the base (14). The output shaft of the first motor (181) is mounted with a drive gear (182) through a coupling. A first rotating shaft (185) is rotatably connected inside the first bearing (184). A driven gear (183) is welded to the surface of the first rotating shaft (185). The drive gear (182) and the driven gear (183) are meshed and connected. Four connecting rods (21) are welded to the surface of the first rotating shaft (185).

3. A device for testing the thermal insulation of a thermal insulating material according to claim 1, characterized in that: The test bench (8) has an equipment compartment (29) inside, and a transmission assembly (28) is installed inside the equipment compartment (29). The transmission assembly (28) includes a second motor (281) and a second bearing (286). The second motor (281) and the second bearing (286) are both fixedly installed at the bottom of the inner wall of the equipment compartment (29). The output shaft of the second motor (281) is connected to a first transmission wheel (283) via a connecting shaft. A second shaft (284) is rotatably connected inside the second bearing (286). A second transmission wheel (285) is welded to the surface of the rotating shaft (284). A transmission chain (282) is connected to the surface of the first transmission wheel (283) and the second transmission wheel (285). A third bearing (42) is fixedly connected to the top of the test bench (8). A third rotating shaft (43) is rotatably connected inside the third bearing (42). The output shaft of the second motor (281) is welded to the shaft end of the second rotating shaft (284) and the bottom ends of the two third rotating shafts (43). A clamping plate (13) is fixedly connected to the top of the third rotating shaft (43).

4. The thermal insulation testing device for thermal insulation materials according to claim 1, characterized in that: The first telescopic assembly (40) and the second telescopic assembly (44) both include a fixed rod (401) and a movable rod (403). One end of each of the two sets of fixed rods (401) is fixedly connected to the bottom of the connecting plate (6) and the top of the fixed seat (11), respectively. One end of each of the two sets of movable rods (403) is fixedly connected to the top of the top cover (7) and the bottom of the extension plate (19), respectively. The movable rod (403) is slidably connected inside the fixed rod (401). Springs (402) are sleeved on the surfaces of the fixed rod (401) and the movable rod (403).

5. A thermal test apparatus for thermal insulation materials according to claim 1, characterized in that: A vibration assembly (41) is installed between the fixed base (11) and the test bench (8). The vibration assembly (41) includes a mounting plate (414) and a rack (413). The mounting plate (414) and the rack (413) are respectively fixedly connected to the top of the fixed base (11) and the bottom of the test bench (8). A fourth motor (412) is fixedly installed on the surface of the mounting plate (414). The output shaft of the fourth motor (412) is connected to a half gear (411) through a coupling. The teeth of the half gear (411) mesh with the rack (413).

6. A thermal test apparatus for thermal insulation materials according to claim 1, characterized in that: The bottom of the inner wall of the top cover (7) has two sliding grooves (38), and a third sliding rod (37) is fixedly installed in each of the two sliding grooves (38). The surfaces of the two third sliding rods (37) are respectively slidably connected to a first sliding plate (45) and a second sliding plate (46). The sides of the first sliding plate (45) and the second sliding plate (46) are respectively fixedly connected to the first sliding rod (36) and the second sliding rod (35).

7. A thermal test apparatus for thermal insulation materials according to claim 1, characterized in that: The top of the base (14) is provided with a slide rail (16), and four pulleys (15) are slidably connected in the slide rail (16). The four pulleys (15) are respectively fixedly connected to the bottom of four fixed seats (11).

8. The thermal insulation testing device for thermal insulation materials according to claim 1, characterized in that: Brake wheel (2) and caster wheel (17) are fixedly installed on the bottom of the support plate (1) and the base (14), respectively. A controller (3) and a display screen (4) are installed on the surface of the support plate (1).

9. A thermal test apparatus for thermal insulation materials according to claim 1, characterized in that: The test bench (8) is equipped with a heat insulation plate (20) inside. A vacuum pump (10) is installed on the surface of the test bench (8). A second thermocouple sensor (24) is installed at the four bottom corners of the heating plate (25). A first thermocouple sensor (9) is installed at the four top corners and the center of the heat insulation plate (20). A thermal imager (22) and a temperature sensor (23) are installed inside the top cover (7). A signal receiver (39) and a signal transmitter (12) are installed at the bottom of the top cover (7) and the top of the extension plate (19), respectively.

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