Safe and intelligent high polymer material vicat thermal deformation temperature testing device

Abstract

The utility model discloses a safe and intelligent high polymer material Vicat thermal deformation temperature testing device which comprises a tester body, an oil groove is formed in the tester body, and a material pressing mechanism is arranged on the oil groove; the power-off protection mechanism comprises an electric heating wire and an ultra-high-temperature circuit breaker protector, an end connector of the electric heating wire extends upwards to be connected to the inner wall of the oil groove, and the electric heating wire is electrically connected with the ultra-high-temperature circuit breaker protector; the plurality of cooling pipes penetrate through the tester body and extend into the oil groove, and the cooling pipes are in sealed connection with the inner wall of the oil groove; the oil filling pipe penetrates through the tester body and extends to the oil groove, and a switch valve is arranged on the oil filling pipe. The end of the heating wire extends upwards to be in sealed connection with the inner wall of the oil groove, the high-temperature-resistant oil level sensor is located at the bottom of the joint of the heating wire and the oil groove, the oil level is always lower than the joint of the heating wire and the oil groove, and leakage of the sealed joint of the heating wire and the oil groove due to long-time use is avoided; the risk that high-temperature oil runs out is avoided, and safety is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of temperature testing devices, and in particular relates to a safe and intelligent Vicat heat distortion temperature testing device for polymer materials. Background Technology

[0002] The heat distortion Vicat softening point tester is an instrument used to determine the thermal properties of polymer materials. Similar to heat distortion temperature, Vicat softening point is used to characterize the heat resistance level of plastics. Heat distortion temperature indicates the ability of plastics to maintain their overall shape under load conditions, while Vicat softening point indicates the ability of plastics to maintain their shape under instantaneous high temperature.

[0003] This instrument determines the heat distortion temperature and softening point of a material by applying a certain temperature and load to induce deformation in the sample. It has wide applications in industry and science. Its principle involves placing the sample at a specific temperature and applying a certain load to cause a change in the sample. By measuring the amount of deformation, the heat distortion temperature and softening point of the material can be determined.

[0004] However, in the current Vicat heat distortion temperature test, the sample is mainly placed in an oil bath. The oil bath temperature is very high, which can easily damage the seal between the heating wire and the oil bath, causing high-temperature oil to splash out. At the same time, the oil temperature in the oil bath reaches a certain temperature, which poses a safety hazard. Utility Model Content

[0005] The purpose of this invention is to provide a safe and intelligent Vicat heat distortion temperature testing device for polymer materials, which addresses the current method of testing Vicat heat distortion temperature by placing the sample in an oil bath. However, the high temperature of the oil bath can easily damage the seal between the heating wire and the oil bath, causing hot oil to splash out. Furthermore, the oil temperature in the oil bath can reach a certain level, posing a safety hazard.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a safe and intelligent Vicat heat distortion temperature testing device for polymer materials, comprising:

[0007] The testing instrument body has an oil tank inside, and a pressing mechanism is installed on the oil tank;

[0008] A power failure protection mechanism includes a heating wire and an ultra-high temperature circuit breaker, wherein the end interface of the heating wire extends upward and is connected to the inner wall of the oil tank, and the heating wire is electrically connected to the ultra-high temperature circuit breaker.

[0009] Several cooling pipes extend through the tester body into the oil tank, and the connection between the cooling pipes and the inner wall of the oil tank is sealed.

[0010] A refueling pipe extends through the tester body to the oil tank, and a switch valve is provided on the refueling pipe.

[0011] As a further description of the above technical solution:

[0012] The pressing mechanism is equipped with a stirring component.

[0013] As a further description of the above technical solution:

[0014] A baffle plate is provided on the oil tank. The pressing mechanism includes a connecting plate, a connecting rod, and a sample holder. The connecting plate is connected to the baffle plate. The sample holder is connected to the connecting plate through the connecting rod. The sample is placed on the sample holder. A pressing needle is provided at the bottom of the pressing rod. The pressing needle presses against the sample. A weight pan is pressed against the pressing rod.

[0015] As a further description of the above technical solution:

[0016] The connecting plate is equipped with several heat-resistant handles, the weight pan is equipped with a fixing rod, and the fixing rod is equipped with a displacement sensor.

[0017] As a further description of the above technical solution:

[0018] The stirring component includes a drive motor, a connecting seat, a stirring shaft, and stirring blades. The connecting seat is connected to the baffle plate, the drive motor is connected to the connecting seat, the stirring shaft is connected to the drive motor, the stirring shaft extends through the baffle plate to the oil tank, and the stirring blades are connected to the stirring shaft.

[0019] As a further description of the above technical solution:

[0020] A high-temperature resistant oil level sensor is installed on the inner wall of the oil tank, and the high-temperature resistant oil level sensor is located at the bottom of the connection between the heating wire and the inner wall of the oil tank.

[0021] As a further description of the above technical solution:

[0022] The bottom of the heating wire is arranged in a U-shape around the oil tank, and the cooling pipe is evenly arranged around the bottom of the heating wire.

[0023] As a further description of the above technical solution:

[0024] The tester body and the oil tank are provided with isolation grooves on the front, back, left and right sides, and the outer wall of each isolation groove is provided with several heat dissipation holes.

[0025] As a further description of the above technical solution:

[0026] A suspended groove is provided between the bottom of the oil tank and the body of the testing instrument.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0028] 1. In this utility model, by extending the end of the heating wire upward and sealing it with the inner wall of the oil tank, and with the high-temperature oil level sensor located at the bottom of the connection between the heating wire and the oil tank, this structure ensures that the oil level is always lower than the connection between the heating wire and the oil tank during the refueling process. This avoids the risk of leakage at the sealing connection between the heating wire and the oil tank due to prolonged use, thus ensuring safety.

[0029] 2. In this utility model, by connecting the heating wire to the ultra-high temperature circuit breaker, the power is automatically cut off when the oil temperature exceeds 300 degrees Celsius, thus avoiding the risk of the oil temperature continuously rising and causing subsequent high temperature.

[0030] 3. In this utility model, by setting the heating wire in a U-shape and wrapping it back and forth, and then cooperating with the stirring component, the oil temperature in the oil tank rises evenly. At the same time, a cooling pipe is set at the bottom. After the test is completed or during the test, water can be introduced through the cooling pipe to cool the oil or control the oil temperature. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A cross-section of a safe and intelligent Vicat heat distortion temperature testing device for polymer materials. Figure 1 .

[0033] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0034] Figure 3 A cross-section of a safe and intelligent Vicat heat distortion temperature testing device for polymer materials. Figure 2

[0035] Figure 4 A three-dimensional device for testing the Vicat heat distortion temperature of safe and intelligent polymer materials. Figure 1 .

[0036] Figure 5 A three-dimensional device for testing the Vicat heat distortion temperature of safe and intelligent polymer materials. Figure 2 .

[0037] Legend:

[0038] 1-Tester body; 2-Oil tank; 3-Pressure mechanism; 31-Connecting plate; 32-Connecting rod; 33-Sample holder; 4-Power failure protection mechanism; 41-Heating wire; 42-Ultra-high temperature circuit breaker; 5-Cooling pipe; 6-Oil filling pipe; 7-Stirring component; 71-Drive motor; 72-Connecting seat; 73-Stirring shaft; 74-Stirring blade; 8-Baffle plate; 9-Weight pan; 10-Anti-scalding handle; 11-High temperature resistant oil level sensor; 12-Isolation tank; 13-Heat dissipation hole; 14-Suspension tank; 15-Switch valve; 16-Pressure rod. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Please see Figure 1-5 This utility model provides a technical solution: a safe and intelligent Vicat heat distortion temperature testing device for polymer materials, comprising:

[0046] The tester body 1 has an oil tank 2 inside, and a pressing mechanism 3 is provided on the oil tank 2;

[0047] The power failure protection mechanism 4 includes a heating wire 41 and an ultra-high temperature circuit breaker 42. The end interface of the heating wire 41 extends upward and is connected to the inner wall of the oil tank 2. The heating wire 41 is electrically connected to the ultra-high temperature circuit breaker 42.

[0048] Several cooling pipes 5 extend through the tester body 1 into the oil tank 2, and the connection between the cooling pipes 5 and the inner wall of the oil tank 2 is sealed.

[0049] A refueling pipe 6 extends through the tester body 1 to the oil tank 2, and a switch valve 15 is provided on the refueling pipe 6. The oil entering the oil tank is controlled by opening the switch valve.

[0050] The pressing mechanism 3 is equipped with a stirring element 7, which enables uniform heating of the oil in the oil tank.

[0051] A baffle plate 8 is provided on the oil tank 2. The pressing mechanism 3 includes a connecting plate 31, a connecting rod 32, and a sample holder 33. The connecting plate 31 is connected to the baffle plate 8, and the sample holder 33 is connected to the connecting plate 31 via the connecting rod 32. The sample is placed on the sample holder 33. A pressing needle is provided at the bottom of the pressing rod 16, and the pressing needle presses against the sample. A weight pan 9 is pressed against the pressing rod 16. By placing weights into the weight pan and observing the distance the pressing rod deforms and moves downward within the oil temperature, the deformation of the sample under high temperature and weight is tested, thereby testing the heat distortion temperature and softening point of the material.

[0052] The connecting plate 31 is equipped with several anti-scalding handles 10, and the weight pan 9 is equipped with a fixing rod, on which a displacement sensor is mounted. After the test is completed, the connecting plate can be disassembled by pulling the anti-scalding handles to avoid the risk of burns.

[0053] The stirring component 7 includes a drive motor 71, a connecting seat 72, a stirring shaft 73, and stirring blades 74. The connecting seat 72 is connected to the baffle plate 8, the drive motor 71 is connected to the connecting seat 72, the stirring shaft 73 is connected to the drive motor 71, the stirring shaft 73 extends through the baffle plate 8 to the oil tank 2, and the stirring blades 74 are connected to the stirring shaft 73.

[0054] A high-temperature resistant oil level sensor 11 is provided on the inner wall of the oil tank 2. The high-temperature resistant oil level sensor 11 is located at the bottom of the connection between the heating wire 41 and the inner wall of the oil tank 2.

[0055] The bottom of the heating wire 41 is arranged in a U-shape around the oil tank 2, and the cooling pipe 5 is evenly arranged around the bottom of the heating wire 41.

[0056] The testing instrument body 1 and the oil tank 2 are equipped with isolation grooves 12 on the front, back, left, and right sides, and the outer walls of the isolation grooves 12 are provided with a number of heat dissipation holes 13 to ensure the safety of the operator around the testing instrument body.

[0057] A suspended groove 14 is provided between the bottom of the oil tank 2 and the tester body 1.

[0058] The oil tank 2 is equipped with graduation lines, allowing you to observe the amount of oil added.

[0059] Working principle: By extending the end of the heating wire upward and sealing it to the inner wall of the oil tank, the high-temperature oil level sensor is located at the bottom of the connection between the heating wire and the oil tank. This structure ensures that the oil level is always lower than the connection between the heating wire and the oil tank during the refueling process, avoiding the risk of leakage at the sealing connection between the heating wire and the oil tank due to long-term use, thus ensuring safety.

[0060] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety intelligent high polymer material Vicat heat distortion temperature testing device, characterized in that, The utility model relates to a test instrument, including: The test instrument body is provided with an oil tank in it, and a material pressing mechanism is arranged on the oil tank; The power-off protection mechanism includes an electric heating wire and an ultra-high temperature circuit protector, the end of the electric heating wire is connected to the inner wall of the oil tank and extends upward, and the electric heating wire is electrically connected to the ultra-high temperature circuit protector; A plurality of cooling pipes extend through the test instrument body into the oil tank, and the cooling pipes are sealingly connected to the inner wall of the oil tank; An oil filling pipe extends through the test instrument body to the oil tank, and a switch valve is arranged on the oil filling pipe.

2. The safe and intelligent Vicat heat distortion temperature testing device for polymer materials according to claim 1, characterized in that, The material pressing mechanism is provided with a stirring part.

3. The device for testing Vicat heat deflection temperature of a safety intelligent polymer material according to claim 2, characterized in that, The oil tank is provided with a shielding plate, the material pressing mechanism includes a connecting plate, a connecting rod and a sample holder, the connecting plate is connected to the shielding plate, the sample holder is connected to the connecting plate through the connecting rod, a sample is placed on the sample holder, a weight disc is arranged at the bottom of the material pressing rod, and a pressing needle is arranged on the weight disc.

4. The device for testing Vicat heat deflection temperature of a safety intelligent polymer material according to claim 3, characterized in that, A plurality of anti-scald handles are arranged on the connecting plate, a fixed rod is arranged on the weight disc, and a displacement sensor is arranged on the fixed rod.

5. The device for testing Vicat heat deflection temperature of a safety intelligent polymer material according to claim 3, characterized in that, The stirring part includes a driving motor, a connecting seat, a stirring shaft and stirring blades, the connecting seat is connected to the shielding plate, the driving motor is connected to the connecting seat, the stirring shaft is connected to the driving motor, the stirring shaft extends through the shielding plate to the oil tank, and the stirring blades are connected to the stirring shaft.

6. The device for testing Vicat heat deflection temperature of a safe intelligent high polymer material according to claim 1, characterized in that A high-temperature-resistant oil level sensor is arranged on the inner wall of the oil tank, and the high-temperature-resistant oil level sensor is located at the bottom of the connecting position of the electric heating wire and the inner wall of the oil tank.

7. The device for testing Vicat heat deflection temperature of a safe intelligent high polymer material according to claim 1, characterized in that The bottom of the electric heating wire is arranged in a U-shaped back-and-forth loop around the oil tank, and the cooling pipes are uniformly arranged below the electric heating wire.

8. The device for testing Vicat heat deflection temperature of a safe intelligent high polymer material according to claim 1, characterized in that Isolation grooves are arranged on the front, back, left and right of the test instrument body and the oil tank, and a plurality of heat dissipation holes are arranged on the outer wall of the isolation grooves.

9. The device for testing Vicat heat deflection temperature of a safe intelligent high polymer material according to claim 1, characterized in that A suspended groove is arranged between the bottom of the oil tank and the test instrument body.

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