High temperature resistance testing equipment suitable for silicone sealant

Abstract

The invention relates to the technical field of silicone sealant testing, in particular to high-temperature-resistant performance testing equipment suitable for silicone sealers.The high-temperature-resistant performance testing equipment comprises a detection box used for silicone sealant testing, an annular clamping part is installed in the detection box, and a round silicone sealant is fixed to the middle of the annular clamping part; a circular silicone sealant hardness detection part is arranged at the top of an inner cavity of the detection box, a temperature control part is further arranged in the detection box, an intelligent sensor for monitoring the annular clamping part, the hardness detection part and the temperature control part is arranged in the detection box, and a heat energy recovery part is arranged at the top of the detection box. According to the invention, the heat energy recovery part is used for heat energy recovery, the heat energy loss is reduced, the test efficiency is improved, the round silicone sealant is tested, the tension test can be carried out at more angles, the hardness test is better, the test range is complete, and the test efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of silicone sealant testing technology, and in particular to a high-temperature resistance testing device suitable for silicone sealants. Background Technology

[0002] Silicone sealants are widely used in construction, electronics, and automotive industries, and must withstand high temperatures of 100-500℃. Their high-temperature resistance (such as adhesion, elasticity, and aging resistance) directly affects application safety, therefore, specialized equipment is required for testing. Specifically, a high-temperature resistance testing device is used. During testing, the silicone sealant (usually a dumbbell-shaped sample) is placed inside the device. This device incorporates various intelligent sensors, such as a built-in temperature sensor to monitor the internal temperature, ensuring stability during simulated testing and preventing misjudgments due to temperature fluctuations. A pressure sensor is also installed on the silicone sealant clamped within the device to monitor clamping and prevent loosening or detachment. These multiple intelligent sensors effectively ensure the stability of the silicone sealant performance test.

[0003] Among the existing published patents, publication number CN112033887B, the patent title is "A High-Temperature Resistance Testing Device for Silicone Sealants," which includes an installation structure. The installation structure has a protective structure mounted on it, and a heating structure is provided on the inner end face of the protective structure. A spraying structure is located in the middle of the installation structure, and a sliding structure is also mounted on it. The installation structure includes an installation plate, sliding grooves, and an installation vertical plate. The right end of the installation plate is fixed to the installation vertical plate, which is perpendicular to the vertical plate, forming an L-shape. The installation plate has four sliding grooves, and a sliding structure is installed on every two sets of sliding grooves. The sliding structure installed on every two sets of sliding grooves provides better stability, and installing two sets of sliding structures allows for simultaneous testing of the performance of two different test pieces, achieving high efficiency and significant comparison.

[0004] The testing range of the aforementioned testing equipment is still relatively limited in actual use. To address this issue, this application also improves the utilization of heat energy in high-temperature resistance testing. Furthermore, for the traditional dumbbell-shaped silicone sealant testing, this application can use circular silicone sealant for testing. Compared to dumbbell-shaped testing, circular silicone sealant testing allows for tensile testing at more angles. However, the process of testing the hardness of the silicone sealant surface is limited, resulting in poor effectiveness of the hardness test.

[0005] Therefore, a high-temperature resistance testing device suitable for silicone sealants was designed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing a high-temperature resistance testing device suitable for silicone sealants.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a high-temperature resistance performance testing device for silicone sealant, comprising a testing chamber for testing silicone sealant, wherein an annular clamping part is installed inside the testing chamber, a circular silicone sealant is fixed in the middle of the annular clamping part, a hardness testing part for the circular silicone sealant is provided at the top of the inner cavity of the testing chamber, a temperature control part is also provided inside the testing chamber, an intelligent sensor for monitoring the annular clamping part, the hardness testing part, and the temperature control part is provided inside the testing chamber, and a heat recovery part is provided at the top of the testing chamber; The heat recovery unit includes an openable insulated box fixed to the detection box. A water storage tank is fixedly installed in the middle of the inner cavity of the insulated box. A through hole is opened at the bottom of the inner cavity on both sides of the water storage tank. The two through holes are an air inlet and an air outlet, respectively. An electric valve is installed inside the two through holes. A fan is fixedly installed at the top of the inner cavity of the insulated box. A guide pipe inserted into the water storage tank is fixedly installed at the exhaust port of the fan.

[0008] Preferably, the annular clamping part includes a steering component disposed at the bottom of the inner cavity of the detection box, a turntable is fixedly installed at the output end of the steering component, a plurality of telescopic components are arranged in an annular shape inside the turntable, a leaf-shaped support plate is fixedly installed at the moving end of each of the telescopic components, an engagement mechanism for engaging circular silicone sealant is fixedly installed at one top end of the support plate, a lifting component is disposed at the top of the turntable, and a placement mechanism for placing adhesive components is disposed on the lifting component; The engagement mechanism includes a positioning plate fixed on a support plate. A steering groove is provided in the middle of the positioning plate. A steering motor is embedded in the inner wall of the steering groove. A steering rod is fixedly installed at the output end of the steering motor. An engagement plate is fixedly installed in the middle of the steering rod. The opposing surfaces of the engagement plate and the positioning plate are both serrated.

[0009] Preferably, the placement mechanism includes a central plate fixed to the lifting component, and the outer wall of the central plate is provided with a plurality of clamping components; The clamping component includes a receiving hole on the outer wall of the central plate. A retaining spring is fixedly installed on the inner wall of the receiving hole. An extension rod is fixedly installed on one end of the retaining spring. A limit block is fixedly installed on one end of the extension rod. A positioning hole for mating with the adhesive component is opened on the surface of the limit block. A retaining bolt extending to the adhesive component is threadedly connected to the inner cavity of the positioning hole.

[0010] Preferably, the hardness testing unit includes a push rod motor fixed to the top of the inner cavity of the testing box. A circular assembly plate is fixedly installed at the output end of the push rod motor. The bottom of the circular assembly plate has several sets of retention holes. A support spring is fixedly installed at the top of the inner cavity of each of the retention holes. A conical needle is fixedly installed at the bottom of each support spring. A corresponding guide groove is opened at the top of each conical needle. A guide rod with one end fixed to the top of the inner cavity of the retention hole is movably installed in the inner cavity of each guide groove. An infusion mechanism connecting to the heat recovery unit is provided on the circular assembly plate.

[0011] Preferably, the infusion mechanism includes a water pump fixed inside the detection box, a water pumping pipe inserted into a water storage tank fixedly installed at the input end of the water pump, a corrugated pipe fixedly installed at the output end of the water pump, an annular infusion tray fixedly installed at one end of the corrugated pipe, a transmission pipe connected to a corresponding number of conical needles fixedly installed at the bottom of the annular infusion tray, and a drainage mechanism provided inside the conical needles.

[0012] Preferably, the drainage mechanism includes a drainage hole with a conical needle having annular outer wall, and the inside of the conical needle also has an infusion hole that passes through several drainage holes, wherein one end of the infusion hole is connected to a transmission pipe.

[0013] Preferably, the inner wall of the insulated box is provided with a drainage groove to collect liquid, the inside of the water storage tank is provided with an impurity filter screen, and a water circulation mechanism is provided on one side of the drainage groove.

[0014] Preferably, the water circulation mechanism includes a transparent pipe fixed to the through-drainage channel, wherein the transparent pipe is an elastic flexible hose, a circulation pump is fixedly installed at one end of the transparent pipe, the top of the insulation box corresponding to the water storage tank is provided with a closable cover connected by a hinge, and the circulation pump is fixed on the top of the closable cover, and the input end of the circulation pump passes through the closable cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can store the heat energy inside the test chamber after the temperature control unit performs a high-temperature resistance test inside the test chamber. When the high-temperature resistance test is performed again, the temperature rise requirement inside the test chamber can be quickly achieved. This not only saves the time spent on heating, but also reduces the heat loss caused by heating and improves the testing efficiency.

[0016] 2. This invention allows for omnidirectional pulling of the circular silicone sealant via an annular clamping part, thus enabling better tensile testing of the circular silicone sealant before and after high-temperature testing, improving the tensile testing effect of the circular silicone sealant. Furthermore, the support plate ensures a balanced distribution of heat energy inside the testing chamber, further enhancing the high-temperature resistance test effect. Simultaneously, the serrated interlocking design improves the stability of the silicone sealant fixation.

[0017] 3. This invention can be directly used for simulation testing. Specifically, silicone sealant is sprayed directly onto the two corresponding adhesive parts. This results in more accurate data and a wider testing range when conducting high temperature resistance and hardness tests.

[0018] 4. This invention can perform a comprehensive hardness test on a circular silicone sealant using a hardness testing unit, thus ensuring the accuracy of the surface hardness test of the silicone sealant. Furthermore, a conical needle can be used to adhere to the surface of the circular silicone sealant and then separate it, thereby enabling an adhesion test on the circular silicone sealant. This test can be performed before, during, and after the high-temperature resistance test, addressing various adhesion conditions.

[0019] 5. Through the infusion mechanism, this invention can also simulate the testing of silicone sealant that has cooled rapidly after being exposed to high temperatures, allowing for a variety of testing methods.

[0020] 6. The present invention utilizes a water circulation mechanism to effectively recycle liquids, thus avoiding the waste of water resources. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-temperature resistance testing device for silicone sealants according to the present invention. Figure 2 This is a schematic diagram of the top cross-sectional structure of a high-temperature resistance performance testing device for silicone sealant according to the present invention; Figure 3 This is a schematic diagram of the bottom cross-sectional structure of a high-temperature resistance testing device for silicone sealant according to the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the engagement mechanism of a high-temperature resistance performance testing device for silicone sealant according to the present invention. Figure 5 This is a schematic cross-sectional view of the clamping component of a high-temperature resistance performance testing device for silicone sealant according to the present invention. Figure 6 This is a schematic cross-sectional view of the hardness testing section of a high-temperature resistance testing device for silicone sealant according to the present invention. Figure 7This is a schematic diagram of the cross-sectional structure of a conical needle for testing the high-temperature resistance of silicone sealant, according to the present invention.

[0022] In the diagram: 1. Testing box; 2. Insulation box; 3. Water storage tank; 4. Through hole; 5. Electric valve; 6. Fan; 7. Guide pipe; 8. Steering component; 9. Turntable; 10. Telescopic component; 11. Support plate; 12. Lifting component; 13. Positioning plate; 14. Steering groove; 15. Steering motor; 16. Steering rod; 17. Engaging plate; 18. Serrated edge; 19. Center plate; 20. Storage hole; 21. Retention spring; 22. Extension rod; 23. Limiting block 24. Positioning hole; 25. Retaining bolt; 26. Push rod motor; 27. Circular assembly plate; 28. Retaining hole; 29. ​​Support spring; 30. Conical needle; 31. Guide groove; 32. Guide rod; 33. Water pump; 34. Water suction pipe; 35. Corrugated pipe; 36. Annular infusion tray; 37. Transmission pipe; 38. Drain hole; 39. Infusion hole; 40. Drainage trough; 41. Impurity filter screen; 42. Transparent tube; 43. Circulation pump; 44. Sealing cover. Detailed Implementation

[0023] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0024] like Figures 1-7 The device shown is a high-temperature resistance testing device for silicone sealant, including a test chamber 1 for testing silicone sealant. The surface of the test chamber 1 is provided with an opening and a sealing cover for closing the opening. The opening and the sealing cover are connected by a hinge. An annular clamping part is installed inside the test chamber 1. A circular silicone sealant is fixed in the middle of the annular clamping part. A hardness testing part for the circular silicone sealant is provided at the top of the inner cavity of the test chamber 1. A temperature control part is also provided inside the test chamber 1. The temperature control part includes a heating tube surrounding the inner wall of the test chamber 1. An intelligent sensor is provided inside the test chamber 1 to monitor the annular clamping part, the hardness testing part, and the temperature control part. A heat recovery part is provided at the top of the test chamber 1. The heat recovery unit includes an openable insulated box 2 fixed on the test box 1. The inner and outer walls of the insulated box 2 can be coated with heat insulation paint. Specifically, any paint available on the market that exceeds the high temperature resistance test can be selected. A water storage tank 3 is fixedly installed in the middle of the inner cavity of the insulated box 2. The water storage tank 3 can be filled with normal liquids or chemical liquids. In this way, in addition to high temperature resistance testing, this equipment can also perform chemical reagent testing. A through hole 4 is opened at the bottom of the inner cavity on both sides of the insulated box 2, which is an air inlet and an air outlet, respectively. An electric valve 5 is installed inside the two through holes 4. A fan 6 is fixedly installed at the top of the inner cavity of the insulated box 2. A guide pipe 7 inserted into the water storage tank 3 is fixedly installed at the exhaust port of the fan 6. During the high-temperature resistance test, first open the test chamber 1, then place the silicone sealant to be tested onto the annular clamping part for clamping and fixation. Then close the test chamber 1. At this time, activate the temperature control unit to heat the interior of the test chamber 1. The specific temperature is selected according to actual needs; the standard temperature is 150°C–300°C, and a special selection is 500°C. After completing the high-temperature resistance performance test, open the electric valve 5 inside one of the air intake holes 4 on the insulation box 2. Simultaneously start the fan 6. The fan 6 will then draw in the hot air from inside the test chamber 1 through the hole 4. The drawn-in hot air will be injected into the liquid inside the water storage tank 3 through the guide pipe 7, thus utilizing… The liquid absorbs heat and stores thermal energy. When conducting high-temperature resistance tests again, simply open the electric valve 5 inside the other through-hole 4 responsible for air outlet, and then start the fan 6 again. The fan 6 continuously blows air into the water storage tank 3 through the guide pipe 7, agitating and heating the liquid. In this way, the heated liquid will simultaneously heat the gas. The heated gas can then form a hot airflow circulation inside the test chamber 1 and the insulation chamber 2 through the two through-holes 4 and the operation of the fan 6. At this time, the temperature control unit inside the test chamber 1 will be activated simultaneously, which will quickly achieve the temperature rise requirement inside the test chamber 1. This not only saves the time spent on heating but also reduces the heat loss caused by heating, thus improving the testing efficiency.

[0025] The annular clamping part includes a steering component 8 located at the bottom of the inner cavity of the detection box 1. The steering component 8 can be a drive motor, and a turntable 9 is fixedly mounted on the output end of the steering component 8. When the drive motor rotates, it drives the turntable 9 to rotate synchronously. Several telescopic components 10 are arranged in a ring inside the turntable 9. The telescopic components 10 can be of a lead screw structure. Specifically, a limiting groove can be opened on the surface of the turntable 9, and a drive motor is installed on the inner wall of the limiting groove. The drive motor is an asynchronous motor, and a lead screw is installed on the output end of the drive motor. A movable block connecting to a support plate 11 is installed at one end of the lead screw. Each movable end of the several telescopic components 10 is fixedly mounted with a leaf-shaped support plate 11. When the steering component 8 rotates, the leaf-shaped support plate 11... The support plate 11 acts as a fan blade, which drives the flow of hot air inside the test chamber 1. This ensures that the heat energy inside the test chamber 1 is balanced, thus enabling better high-temperature resistance testing of the silicone sealant. It avoids the situation where uneven temperature inside the test chamber 1 causes poor high-temperature resistance test results. The top end of the support plate 11 is fixedly installed with a clamping mechanism for the circular silicone sealant. The top of the turntable 9 is provided with a lifting component 12, which is equipped with a placement mechanism for placing the adhesive. The annular clamping part and the circular silicone sealant can be pulled in all directions, which can better perform tensile testing on the circular silicone sealant before and after the high-temperature test, thus improving the tensile test effect of the circular silicone sealant. The engagement mechanism includes a positioning plate 13 fixed on a support plate 11. A steering groove 14 is provided in the middle of the positioning plate 13. A steering motor 15 is embedded in the inner wall of the steering groove 14. The steering motor 15 is an asynchronous motor. A steering rod 16 is fixedly installed at the output end of the steering motor 15. An engagement plate 17 is fixedly installed in the middle of the steering rod 16. The opposing surfaces of the engagement plate 17 and the positioning plate 13 are both serrated 18. Place the outer wall of the circular silicone sealant on the positioning plate 13, then start the steering motor 15. The steering motor 15 will drive the steering rod 16 to rotate. The rotating steering rod 16 will drive the interlocking plate 17 to interlock and fix the outer wall of the silicone sealant. Since the interlocking surface of the interlocking plate 17 and the positioning plate 13 is serrated 18, it can better interlock and fix the silicone sealant, ensuring the effectiveness of the silicone sealant's position fixation and preventing the silicone sealant from becoming loose during testing.

[0026] The placement mechanism includes a central disk 19 fixed on the lifting component 12. The central disk 19 is circular. Several clamping components are provided on the outer wall of the central disk 19. The clamping components are used to clamp and fix the circular silicone sealant. The circular silicone sealant can be subjected to tensile testing at multiple angles during testing, thereby more effectively confirming the tensile strength of the silicone sealant. The clamping component includes a receiving hole 20 on the outer wall of the central plate 19. A retaining spring 21 is fixedly installed on the inner wall of the receiving hole 20. An extension rod 22 is fixedly installed on one end of the retaining spring 21. A limiting block 23 is fixedly installed on one end of the extension rod 22. A positioning hole 24 for mating adhesive components is opened on the surface of the limiting block 23. Two adhesive components are selected. The two adhesive components are semi-circular. The adhesive components are provided with merging holes corresponding to the positioning hole 24. A retaining bolt 25 extending to the adhesive component is threadedly connected to the inner cavity of the positioning hole 24. First, place the two adhesive components on the central plate 19. Then, stretch the limiting block 23 synchronously according to the size of the adhesive components. At this time, the limiting block 23 will extend outward toward the receiving hole 20 through the extension rod 22. While the extension rod 22 extends, it will also pull the retaining spring 21. In this way, the tension of the retaining spring 21 can cooperate with the limiting block 23 to clamp and fix the two adhesive components. In order to ensure the stability of clamping and fixing, the retaining bolt 25 can also be used to thread and fix the two adhesive components through the positioning hole 24. Then, silicone sealant is injected into the gap between the two adhesive components, and then high temperature resistance and other tests are carried out. This testing method is more accurate than testing with silicone sealant directly, and improves the overall testing effect.

[0027] The hardness testing unit includes a push rod motor 26 fixed to the top of the inner cavity of the testing box 1. A circular assembly plate 27 is fixedly installed at the output end of the push rod motor 26. The diameter of the circular assembly plate 27 is equal to the maximum diameter of the annular clamping part. Several sets of fixing holes 28 are opened at the bottom of the circular assembly plate 27. A support spring 29 is fixedly installed at the top of the inner cavity of each of the fixing holes 28. A conical needle 30 is fixedly installed at the bottom of each support spring 29. A corresponding guide groove 31 is opened at the top of each conical needle 30. A guide rod 32 with one end fixed to the top of the inner cavity of the fixing hole 28 is movably installed in the inner cavity of each guide groove 31. An infusion mechanism connecting to the heat recovery unit is provided on the circular assembly plate 27. When performing a hardness test on circular silicone sealant, the push rod motor 26 can be activated. The push rod motor 26 will then move the circular assembly plate 27 downwards, thereby using the circular assembly plate 27 to drive several tapered needles 30 to compress the circular silicone sealant. Since the maximum diameter of the circular assembly plate 27 is equal to the maximum diameter of the annular clamping part, this allows for omnidirectional compression of the circular silicone sealant on the annular clamping part. This improves the integrity of the hardness test on the circular silicone sealant. Furthermore, when different hardnesses appear on the surface of the circular silicone sealant, the tapered needles 30 can be inserted into the sealant with normal hardness. When the hardness is too high, the conical needle 30 encounters significant resistance. This resistance causes the conical needle 30 to move upwards along the guide rod 32 on the guide groove 31, simultaneously compressing the corresponding support spring 29. This allows for a comprehensive hardness test of the circular silicone sealant, improving the hardness detection effect. Furthermore, the conical needle 30 can be applied to the surface of the circular silicone sealant and then separated to perform an adhesion test. This test can be conducted before, during, and after the high-temperature resistance test, addressing various adhesion conditions.

[0028] The infusion mechanism includes a water pump 33 fixed inside the detection box 1. A water pump pipe 34 inserted into the water storage tank 3 is fixedly installed at the input end of the water pump 33. A corrugated pipe 35 is fixedly installed at the output end of the water pump 33. The corrugated pipe 35 can synchronously extend and retract with the circular assembly plate 27. An annular infusion tray 36 is fixedly installed at one end of the corrugated pipe 35. A transmission pipe 37 connected to a corresponding number of conical needles 30 is fixedly installed at the bottom of the annular infusion tray 36. A draining mechanism is provided inside the conical needles 30. The drainage mechanism includes a drainage hole 38 with a conical needle 30 having annular outer wall, and an infusion hole 39 through which several drainage holes 38 are provided inside the conical needle 30, wherein one end of the infusion hole 39 is connected to the transmission pipe 37. After completing the high-temperature resistance test, the water pump 33 can be started. The water pump 33 will then transfer the liquid inside the water tank 3 to the inside of the bellows 35 through the water pipe 34. At this time, the liquid will enter the annular infusion tray 36 through the bellows 35. The annular infusion tray 36 will transfer the liquid to the inside of the conical needle 30 through several transmission pipes 37. Finally, the liquid will be discharged through the infusion hole 39 on each conical needle 30 and discharged onto the circular silicone sealant surface through the drain hole 38. This liquid spraying range is wide, which can more comprehensively realize the rapid testing of the circular silicone sealant surface from high temperature to low temperature, and expand the testing range of the equipment for silicone sealant.

[0029] The interior of the insulated box 2 is provided with a drainage trough 40 to collect liquid. The drainage trough 40 is used to collect the liquid inside the test box 1. The interior of the water storage tank 3 is provided with an impurity filter screen 41, which is used to filter impurities from the circulating liquid. A water circulation mechanism is provided on one side of the drainage trough 40. The water circulation mechanism is mainly used to improve the utilization rate of liquid and reduce the waste of water resources. The water circulation mechanism includes a transparent tube 42 fixed to the through-drainage channel 40. The transparent tube 42 is an elastic hose, so it can be stretched. A circulation pump 43 is fixedly installed at one end of the transparent tube 42. The top of the insulation box 2 is provided with a closable cover 44 connected by a hinge to the water storage tank 3. The closable cover 44 needs to be equipped with a sealing ring to ensure the airtightness of the insulation box 2. The circulation pump 43 is fixed to the top of the closable cover 44, and the input end of the circulation pump 43 passes through the closable cover 44. When there is liquid inside the drainage tank 40 inside the detection box 1, the circulation pump 43 can be started. At this time, the circulation pump 43 can draw liquid into the drainage tank 40 through the transparent tube 42. The drawn liquid is finally introduced into the water storage tank 3 through the closed cover 44, and solid-liquid separation is performed through the impurity filter screen 41 on the water storage tank 3. In this way, the filtration of circulating liquid can be completed. The filtered liquid can then be recycled, thereby realizing the efficient utilization of water resources.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A high-temperature resistance testing device suitable for silicone sealants, characterized in that, The test chamber (1) includes a test chamber for testing silicone sealant. The test chamber (1) is equipped with an annular clamping part inside, and a circular silicone sealant is fixed in the middle of the annular clamping part. The hardness testing part of the circular silicone sealant is provided at the top of the inner cavity of the test chamber (1). The test chamber (1) is also equipped with a temperature control part. The test chamber (1) is equipped with an intelligent sensor that monitors the annular clamping part, the hardness testing part, and the temperature control part. The test chamber (1) is equipped with a heat recovery part at the top. The heat recovery unit includes an openable insulated box (2) fixed on the detection box (1). A water storage tank (3) is fixedly installed in the middle of the inner cavity of the insulated box (2). A through hole (4) is opened at the bottom of the inner cavity on both sides of the insulated box (2) and the two through holes (4) are respectively the air inlet and the air outlet. An electric valve (5) is installed inside the two through holes (4). A fan (6) is fixedly installed at the top of the inner cavity of the insulated box (2). A guide pipe (7) inserted into the water storage tank (3) is fixedly installed at the exhaust port of the fan (6).

2. The high-temperature resistance testing equipment for silicone sealants according to claim 1, characterized in that: The annular clamping part includes a steering component (8) located at the bottom of the inner cavity of the detection box (1). A turntable (9) is fixedly installed at the output end of the steering component (8). Several telescopic components (10) are arranged in an annular shape inside the turntable (9). A leaf-shaped support plate (11) is fixedly installed at the moving end of each of the telescopic components (10). A biting mechanism for biting circular silicone sealant is fixedly installed at one end of the top of the support plate (11). A lifting component (12) is provided on the top of the turntable (9). A placement mechanism for placing adhesive components is provided on the lifting component (12). The engagement mechanism includes a positioning plate (13) fixed on a support plate (11). A steering groove (14) is provided in the middle of the positioning plate (13). A steering motor (15) is embedded in the inner wall of the steering groove (14). A steering rod (16) is fixedly installed at the output end of the steering motor (15). An engagement plate (17) is fixedly installed in the middle of the steering rod (16). The opposing surfaces of the engagement plate (17) and the positioning plate (13) are both serrated (18).

3. The high-temperature resistance testing equipment for silicone sealants according to claim 2, characterized in that: The placement mechanism includes a central disk (19) fixed on the lifting component (12), and the outer wall of the central disk (19) is provided with a plurality of clamping components; The clamping component includes a receiving hole (20) on the outer wall of the central plate (19). A retaining spring (21) is fixedly installed on the inner wall of the receiving hole (20). An extension rod (22) is fixedly installed at one end of the retaining spring (21). A limiting block (23) is fixedly installed at one end of the extension rod (22). A positioning hole (24) for mating the adhesive is opened on the surface of the limiting block (23). A retaining bolt (25) extending to the adhesive is threaded into the inner cavity of the positioning hole (24).

4. The high-temperature resistance testing equipment for silicone sealants according to claim 1, characterized in that: The hardness testing unit includes a push rod motor (26) fixed to the top of the inner cavity of the testing box (1). A circular assembly plate (27) is fixedly installed at the output end of the push rod motor (26). Several sets of fixing holes (28) are opened at the bottom of the circular assembly plate (27). A support spring (29) is fixedly installed at the top of the inner cavity of each of the several fixing holes (28). A conical needle (30) is fixedly installed at the bottom of each support spring (29). A corresponding guide groove (31) is opened at the top of each conical needle (30). A guide rod (32) with one end fixed to the top of the inner cavity of the fixing hole (28) is movably installed in the inner cavity of each guide groove (31). An infusion mechanism connected to the heat recovery unit is provided on the circular assembly plate (27).

5. The high-temperature resistance testing equipment for silicone sealants according to claim 4, characterized in that: The infusion mechanism includes a water pump (33) fixed inside the detection box (1). The input end of the water pump (33) is fixedly installed with a water pipe (34) inserted into the water storage tank (3). The output end of the water pump (33) is fixedly installed with a corrugated pipe (35). One end of the corrugated pipe (35) is fixedly installed with an annular infusion tray (36). The bottom of the annular infusion tray (36) is fixedly installed with a transmission pipe (37) connecting a corresponding number of conical needles (30). The conical needles (30) are provided with a drainage mechanism inside.

6. The high-temperature resistance testing equipment for silicone sealants according to claim 5, characterized in that: The drainage mechanism includes a drainage hole (38) with a conical needle (30) arranged in a ring shape on the outer wall. The conical needle (30) also has an infusion hole (39) that passes through several drainage holes (38), and one end of the infusion hole (39) is connected to the transmission pipe (37).

7. The high-temperature resistance testing equipment for silicone sealants according to claim 1, characterized in that: The heat preservation box (2) has a drainage trough (40) inside to collect liquid, and the water storage tank (3) has an impurity filter screen (41) inside. A water circulation mechanism is provided on one side of the drainage trough (40).

8. The high-temperature resistance testing equipment for silicone sealants according to claim 7, characterized in that: The water circulation mechanism includes a transparent pipe (42) fixed to the through-drainage channel (40), wherein the transparent pipe (42) is an elastic hose, and a circulation pump (43) is fixedly installed at one end of the transparent pipe (42). The top of the heat preservation box (2) corresponding to the water storage tank (3) is provided with a closable cover (44) that is connected by a hinge, and the circulation pump (43) is fixed to the top of the closable cover (44), and the input end of the circulation pump (43) passes through the closable cover (44).

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