PVC material low-temperature embrittlement test device

Abstract

The utility model provides a PVC (Polyvinyl Chloride) material low-temperature embrittlement test device, which comprises a box body, a refrigerating machine, a gas delivery pipe, a gas injection pipe, a positioning plate, a clamp, an impact mechanism, a box cover, a temperature sensor, a camera and a control panel, the refrigerating machine is fixed on one side surface of the box body, and the output end of the refrigerating machine is connected with the gas injection pipe through the gas delivery pipe; an impact mechanism is fixed in the box body, a positioning plate movably penetrates through the impact mechanism, and a clamp is fixed on the upper side surface of the positioning plate; a box cover is rotationally installed at the upper end of the box body, a temperature sensor and a camera are fixed to the lower side face of the box cover, and a control panel is fixed to the upper side face of the box cover. Due to the arrangement of the clamp, the impact mechanism and the camera, PVC materials of different sizes can be fixed when the PVC material embrittlement detection device is used, the PVC materials cannot be crushed when pressure is applied to the PVC materials, and meanwhile, whether the PVC materials are embrittled or not can be preliminarily judged conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVC material testing equipment, in particular to a low-temperature embrittlement testing device for PVC materials. Background Art

[0002] With the advancement of science and technology and the development of industry, PVC material, as an important plastic material, is widely used in various fields, such as construction, automobiles, electronics, etc. However, in actual use, PVC materials often become brittle in low temperature environments, resulting in a significant decline in its performance and even causing safety accidents. Therefore, before using PVC materials, it is necessary to evaluate the brittleness performance of PVC materials at low temperatures through test equipment.

[0003] However, the existing PVC material low-temperature embrittlement test device can only fix PVC materials of a single size when in use, lacking flexibility and versatility, which greatly limits the scope of application of the test; secondly, the existing PVC material low-temperature embrittlement test device generally uses hard squeezing when applying pressure to the PVC material, which will crush the PVC material, and the marks produced by the crushing will affect the judgment of the staff; in addition, the existing PVC material low-temperature embrittlement test device lacks a real-time recording structure, which is not convenient for real-time judgment on whether the PVC material is brittle.

[0004] Therefore, it is very necessary to invent a low-temperature embrittlement test device for PVC materials. Utility Model Content

[0005] The utility model aims to provide a low-temperature embrittlement test device for PVC materials to solve the problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a low-temperature embrittlement test device for PVC materials, comprising a box body, a refrigerator, an air supply pipe, an air injection pipe, a positioning plate, a clamp, an impact mechanism, a box cover, a temperature sensor, a camera and a control panel, wherein a refrigerator is fixed to one side of the box body by bolts, wherein the output end of the refrigerator is fixed to the air supply pipe by a joint; the other end of the air supply pipe is fixed to two air injection pipes by a joint, wherein the air injection pipe is fixed to the outer side of the box body by bolts, and the output end of the air injection pipe is communicated with the inside of the box body; an impact mechanism is fixed to the inside of the box body by bolts, wherein the impact mechanism movably passes through a positioning plate, and the positioning plate is movably placed inside the box body; two clamps are fixed to the upper side of the positioning plate by bolts, wherein the clamps are arranged in a mirror image; a box cover is installed on the upper end of the box body by hinged rotation, wherein the lower side of the box cover is fixed to a temperature sensor and a camera by bolts, and the upper side of the box cover is fixed to a control panel by bolts.

[0008] Furthermore, the positioning plate includes a plate body, a guide rail and a through hole, the plate body is movably placed inside the box body, and two of the clamps and a plurality of the guide rails are fixed to the upper side of the plate body, wherein the clamps are slidably mounted on the corresponding guide rails; a through hole is penetrated through the middle of the plate body, wherein an impact mechanism is movably passed through the inside of the through hole, and such a setting can provide a route for the movement of the clamp.

[0009] Furthermore, the clamp includes an electric push rod, a push plate, a lifting plate, a bottom plate, a first rubber block, a second rubber block, a guide column and a compression spring, the electric push rod is fixed to the upper side of the plate body by bolts, and the output end of the electric push rod is fixed to the push plate by bolts, and the push plate is slidably mounted on the guide rail; one side of the push plate is fixed to the bottom plate by welding, wherein a lifting plate is provided on the upper side of the bottom plate, and the lifting plate is slidably connected to the push plate; the lower side of the lifting plate is fixed to the guide column by welding, wherein the guide column slides through the bottom plate, and the outer side of the guide column is sleeved with a compression spring, which is provided on the lower side of the bottom plate; the first rubber block is fixed to the upper side of the bottom plate by screws; the second rubber block is fixed to the lower side of the lifting plate by screws, and such an arrangement is convenient for clamping and fixing PVC materials of different sizes.

[0010] Furthermore, the impact mechanism includes an air pump, a spray pipe, a valve and a nozzle, the air pump is fixed inside the box by bolts, and the upper side of the air pump is arranged in a close contact with the lower side of the plate; the output end of the air pump is fixed with a spray pipe through a joint, wherein a plurality of valves are fixed on the outer side of the spray pipe, and the spray pipe is movable through a through hole; the other end of each valve is fixed with a nozzle through a joint, and the spray direction of the nozzle is arranged upward. Such an arrangement can generate high-pressure gas, and the PVC material is bent by the impact of the high-pressure gas, and hard extrusion is not used, thereby not causing compression damage to the PVC material.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The setting of the clamp of the utility model, firstly, by adjusting the position of the push plate through the electric push rod, the device can clamp PVC materials of different sizes, thereby increasing the versatility and flexibility of the device; secondly, the design of the first rubber block and the second rubber block not only provides a stable clamping force, but also ensures that the PVC material will not be scratched by the clamp when it is impacted; in addition, the setting of the compression spring ensures that the PVC material is always firmly clamped during the test, and the material can be prevented from falling off even under the action of impact force.

[0013] 2. The setting of the impact mechanism of the utility model, firstly, by selectively opening the valve according to the size of the PVC material, the area where the impact force is applied can be accurately controlled, so that the test is closer to the actual use situation; secondly, the impact force is applied to the PVC material in the form of high-pressure gas injection, which avoids the crushing injuries that may be caused by hard squeezing, protects the integrity of the material, and makes the test results more accurate.

[0014] 3. The camera of the utility model is set up so that when the PVC material is bent by the impact mechanism, the camera can record the state of the PVC material and transmit the video to the control panel, which displays the video. At this time, the staff can judge whether the PVC material has obvious embrittlement by watching the video. If the number of cracks on the PVC material increases or the crack expansion speed is accelerated, it can be preliminarily judged that the PVC material has embrittlement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the positioning plate of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the clamp of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the impact mechanism of the utility model.

[0020] In the figure:

[0021] 1-box body, 2-refrigeration machine, 3-gas delivery pipe, 4-gas injection pipe, 5-positioning plate, 51-plate body, 52-guide rail, 53-through hole, 6-clamp, 61-electric push rod, 62-push plate, 63-lifting plate, 64-bottom plate, 65-first rubber block, 66-second rubber block, 67-guide column, 68-compression spring, 7-impact mechanism, 71-air pump, 72-injection pipe, 73-valve, 74-nozzle, 8-box cover, 9-temperature sensor, 10-camera, 11-control panel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0024] See also Figure 1 As shown, the utility model is a low-temperature embrittlement test device for PVC materials, comprising a box body 1, a refrigerator 2, an air pipe 3, an air injection pipe 4, a positioning plate 5, a fixture 6, an impact mechanism 7, a box cover 8, a temperature sensor 9, a camera 10 and a control panel 11. A refrigerator 2 is fixed to one side of the box body 1 by bolts, wherein the output end of the refrigerator 2 is fixed with the air pipe 3 by a joint; two air injection pipes 4 are fixed to the other end of the air pipe 3 by a joint, wherein the air injection pipe 4 is fixed to the outer side of the box body 1 by bolts, and the output end of the air injection pipe 4 is communicated with the inside of the box body 1; an impact mechanism 7 is fixed to the inside of the box body 1 by bolts, wherein the impact mechanism 7 movably passes through a positioning plate 5, and the positioning plate 5 is movably placed inside the box body 1; two fixtures 6 are fixed to the upper side of the positioning plate 5 by bolts, wherein the fixtures 6 are arranged in a mirror image; a box cover 8 is installed on the upper end of the box body 1 by hinged rotation, wherein the lower side of the box cover 8 is fixed with a temperature sensor 9 and a camera 10 by bolts, and the upper side of the box cover 8 is fixed with a control panel 11 by bolts.

[0025] like Figure 2As shown, the positioning plate 5 includes a plate body 51, a guide rail 52 and a through hole 53. The plate body 51 is movably placed inside the box body 1, and two clamps 6 and a plurality of guide rails 52 are fixed on the upper side of the plate body 51, wherein the clamp 6 is slidably installed on the corresponding guide rail 52; a through hole 53 is opened through the middle of the plate body 51, wherein an impact mechanism 7 is movably passed through the through hole 53. When in use, the positioning plate 5 can be taken out from the box body 1 for replacement or maintenance. At the same time, the guide rail 52 can provide a route for the movement of the clamp 6, and the setting of the through hole 53 can avoid affecting the impact mechanism 7 when the positioning plate 5 is taken out.

[0026] like Figure 2 to Figure 3 As shown, the fixture 6 includes an electric push rod 61, a push plate 62, a lifting plate 63, a bottom plate 64, a first rubber block 65, a second rubber block 66, a guide column 67 and a compression spring 68. The electric push rod 61 is fixed to the upper side of the plate body 51 by bolts, and the output end of the electric push rod 61 is fixed to the push plate 62 by bolts, and the push plate 62 is slidably installed on the guide rail 52; one side of the push plate 62 is fixed to the bottom plate 64 by welding, wherein the upper side of the bottom plate 64 is provided with a lifting plate 63, and the lifting plate 63 is slidably connected to the push plate 62; the lower side of the lifting plate 63 is fixed to the guide column 67 by welding, wherein the guide column 67 slides through the bottom plate 64, and the outer side of the guide column 67 is sleeved with a compression spring 68, and the compression spring 68 is arranged on the lower side of the bottom plate 64; the upper side of the bottom plate 64 is fixed to the first rubber block by screws 65; A second rubber block 66 is fixed to the lower side of the lifting plate 63 by screws. When in use, the PVC material can be placed between the bottom plate 64 and the lifting plate 63, and then under the action of the compression spring 68, the first rubber block 65 and the second rubber block 66 between the bottom plate 64 and the lifting plate 63 clamp the PVC material, wherein the position of the push plate 62 on the plate body 51 can be adjusted by the electric push rod 61, so as to facilitate the clamping of PVC materials of different sizes. At the same time, when the PVC material is bent by the impact mechanism 7, the PVC material can slide between the first rubber block 65 and the second rubber block 66, and because the compression spring 68 provides a downward force on the lifting plate 63, the PVC material can be prevented from being separated between the bottom plate 64 and the lifting plate 63.

[0027] like Figure 4As shown, the impact mechanism 7 includes an air pump 71, a jet pipe 72, a valve 73 and a nozzle 74. The air pump 71 is fixed inside the box body 1 by bolts, and the upper side of the air pump 71 is arranged in contact with the lower side of the plate body 51; the output end of the air pump 71 is fixed with a jet pipe 72 through a joint, wherein a plurality of valves 73 are fixed on the outer side of the jet pipe 72, and the jet pipe 72 movably passes through the through hole 53; the other end of the valve 73 is fixed with a nozzle 74 through a joint, and the spray direction of the nozzle 74 is set upward. When in use, the corresponding valve 73 can be opened according to the size of the PVC material, and then when the temperature inside the box body 1 drops to a certain level, the air pump 71 can be started, so that the high-pressure gas passes through the jet pipe 72 and enters the corresponding nozzle 74, and then the nozzle 74 sprays the high-pressure gas to the lower side of the PVC material, and the impact force of the high-pressure gas on the PVC material causes the PVC material to bend.

[0028] Specifically, the power connectors of the refrigerator 2, the electric push rod 61, the air pump 71, the temperature sensor 9, the camera 10 and the control panel 11 are all connected to the external power supply through the power cord, and the refrigerator 2, the electric push rod 61, the air pump 71, the temperature sensor 9 and the camera 10 are respectively connected to the control panel 11 through the data lines. When in use, the working status of the refrigerator 2, the electric push rod 61, the air pump 71, the temperature sensor 9 and the camera 10 can be controlled through the control panel 11. At the same time, the pictures captured by the camera 10 and the data detected by the temperature sensor 9 can be displayed through the control panel 11.

[0029] See also Figure 1-4 As shown, the utility model is a low-temperature embrittlement test device for PVC materials, and its working principle is: when in use, the staff fixes the PVC material to be tested inside the fixture 6, then closes the box cover 8, and cools the inside of the box body 1 to a predetermined low-temperature environment through the refrigerator 2, the air pipe 3, the air injection pipe 4 and the temperature sensor 9. This step is to simulate the low-temperature conditions that the PVC material may encounter in actual applications, so as to more accurately evaluate its embrittlement performance.

[0030] When the temperature inside the box 1 reaches the set value, the impact mechanism 7 provides impact force to the PVC material to simulate the stress conditions in actual use. During the impact process, the camera 10 records the deformation and crack extension of the PVC material in real time. These video data are displayed and saved through the control panel 11 to provide a basis for subsequent analysis and judgment. In addition, the staff can analyze the performance of the PVC material under the impact by observing the video, so as to judge whether it has brittleness.

[0031] Finally, after the test, the staff can remove the PVC material for further microstructural observation and analysis, and through comprehensive evaluation of the data and observations during the test, draw conclusions about the embrittlement performance of PVC materials in low-temperature environments.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PVC material low temperature embrittlement test device, comprising a box (1), a refrigerator (2), a gas pipe (3), a gas injection pipe (4), a positioning plate (5), a fixture (6), an impact mechanism (7), a box cover (8), a temperature sensor (9), a camera (10) and a control panel (11), characterized in that: A refrigerator (2) is fixed to one side of the box (1), wherein an air supply pipe (3) is fixed to the output end of the refrigerator (2); two air injection pipes (4) are fixed to the other end of the air supply pipe (3), wherein the air injection pipe (4) is fixed to the outer side of the box (1), and the output end of the air injection pipe (4) is communicated with the inside of the box (1); an impact mechanism (7) is fixed to the inside of the box (1), wherein the impact mechanism (7) movably passes through a positioning plate (5), and the positioning plate (5) is movably placed inside the box (1); two clamps (6) are fixed to the upper side of the positioning plate (5), wherein the clamps (6) are arranged in a mirror image; a box cover (8) is rotatably mounted on the upper end of the box (1), wherein a temperature sensor (9) and a camera (10) are fixed to the lower side of the box cover (8), and a control panel (11) is fixed to the upper side of the box cover (8).

2. A PVC material low temperature embrittlement test device as claimed in claim 1, characterized in that: The positioning plate (5) comprises a plate body (51), a guide rail (52) and a through hole (53); the plate body (51) is movably placed inside the box body (1), and two clamps (6) and a plurality of guide rails (52) are fixed to the upper side of the plate body (51), wherein the clamps (6) are slidably mounted on the corresponding guide rails (52); a through hole (53) is provided through the middle of the plate body (51), wherein an impact mechanism (7) movably passes through the interior of the through hole (53).

3. A PVC material low temperature embrittlement test device as claimed in claim 2, characterized in that: The clamp (6) comprises an electric push rod (61), a push plate (62), a lifting plate (63), a bottom plate (64), a first rubber block (65), a second rubber block (66), a guide column (67) and a compression spring (68), wherein the electric push rod (61) is fixed to the upper side of the plate body (51), and the output end of the electric push rod (61) is fixed to the push plate (62), and the push plate (62) is slidably mounted on the guide rail (52); a bottom plate (64) is fixed to one side of the push plate (62), wherein the bottom plate (64) A lifting plate (63) is provided on the upper side thereof, and the lifting plate (63) is slidably connected to the push plate (62); a guide column (67) is fixed on the lower side of the lifting plate (63), wherein the guide column (67) slides through the bottom plate (64), and a compression spring (68) is sleeved on the outer side of the guide column (67), and the compression spring (68) is arranged on the lower side of the bottom plate (64); a first rubber block (65) is fixed on the upper side of the bottom plate (64); and a second rubber block (66) is fixed on the lower side of the lifting plate (63).

4. A PVC material low temperature embrittlement test device as claimed in claim 2, characterized in that: The impact mechanism (7) comprises an air pump (71), a jet pipe (72), a valve (73) and a nozzle (74); the air pump (71) is fixed inside the box (1), and the upper side of the air pump (71) is arranged to fit the lower side of the plate (51); the output end of the air pump (71) is fixed with a jet pipe (72), wherein the outer side of the jet pipe (72) is fixed with a plurality of valves (73), and the jet pipe (72) is movable through a through hole (53); the other end of each valve (73) is fixed with a nozzle (74), and the jetting direction of each nozzle (74) is arranged to face upward.

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