Road marking paint crack resistance testing device

Abstract

The utility model discloses a crack resistance testing device for road marking paint. The crack resistance testing device comprises a testing box, a fastener, a testing sample, a tensile testing assembly, a high-temperature chamber covering piece, a low-temperature chamber covering piece and an electric telescopic rod, wherein a supporting plate is arranged in the testing box respectively; the partition plate divides the test box into a high-temperature test chamber and a low-temperature test chamber, and an access hole is formed in the partition plate; the fastener is arranged on the supporting plate in a sliding manner; the test sample is arranged on the fastener; the tensile test assembly is arranged at the bottom of the fastener and abuts against the test sample; the high-temperature chamber covering piece and the low-temperature chamber covering piece respectively cover the access hole in a sliding manner; the electric telescopic rod is arranged on the supporting plate, and an extending shaft of the electric telescopic rod is connected with the fastener. Therefore, low-temperature and high-temperature anti-cracking tests can be continuously carried out, and the test sample does not need to be repeatedly mounted and dismounted, so that the efficiency of the anti-cracking performance test of the road marking paint is improved, and the cost of the anti-cracking performance test of the road marking paint is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coating performance detection, in particular to a road marking coating crack resistance testing device. Background Art

[0002] Road markings are important elements that provide guidance and warnings for traffic on the road, so the durability and crack resistance test of road marking paint is very important. The crack resistance test can evaluate the tensile strength of road marking paint under different temperature conditions, so as to determine whether it can remain stable and be used for a long time in different environments.

[0003] At present, the method for testing the crack resistance of road marking paint is to first fix the test sample on the fastener of the high-temperature test equipment, and then perform a tensile crack resistance test at high temperature. After the test is completed, the test sample is removed, fixed to the fastener of the low-temperature test equipment, and a tensile crack resistance test is performed at low temperature. This method requires the test sample to be constantly clamped and loosened between high-temperature and low-temperature tests, which affects the efficiency of the road marking paint crack resistance test; in addition, the use of two devices for high-temperature and low-temperature tests also increases the cost of the road marking paint crack resistance test. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the utility model is to propose a road marking paint crack resistance testing device that can continuously perform low-temperature and high-temperature crack resistance tests without repeatedly installing and disassembling test samples, thereby improving the efficiency of road marking paint crack resistance testing and reducing the cost of road marking paint crack resistance testing.

[0006] To achieve the above-mentioned purpose, the utility model proposes a road marking paint crack resistance testing device, comprising a test box, a fastener, a test sample, a tensile test assembly, a high temperature chamber cover assembly, a low temperature chamber cover assembly and an electric telescopic rod, wherein the test box comprises two support plates and a partition plate, wherein the two support plates are respectively arranged in the test box; the partition plate is arranged in the test box, the partition plate separates the test box into a high temperature test chamber and a low temperature test chamber, and an access hole is opened on the partition plate; the fastener is slidably arranged on the support plate; the test sample is arranged on the fastener; the tensile test assembly is arranged at the bottom of the fastener and abuts against the test sample; the high temperature chamber cover assembly is arranged on the fastener and slidably covers the access hole; the low temperature chamber cover assembly is arranged on the electric telescopic rod and slidably covers the access hole; the electric telescopic rod is arranged between the support plates, and the extension shaft of the electric telescopic rod is connected to the fastener.

[0007] The utility model discloses a road marking paint crack resistance testing device, which can continuously perform low-temperature and high-temperature crack resistance tests without repeatedly installing and disassembling test samples, thereby improving the efficiency of the road marking paint crack resistance performance test and reducing the cost of the road marking paint crack resistance performance test.

[0008] In addition, the road marking paint crack resistance testing device proposed in the present application may also have the following additional technical features:

[0009] Specifically, the high temperature chamber cover assembly includes a buffer sleeve and a first sealing cover, wherein one end of the buffer sleeve is arranged on the fastener, and the other end of the buffer sleeve is arranged on the first sealing cover; the first sealing cover is slidably covered with the access hole.

[0010] Specifically, the buffer sleeve includes a fixed cylinder, a connecting rod and a spring, wherein the fixed cylinder is arranged on the fastener; one end of the connecting rod is abutted in the fixed cylinder, and the other end of the connecting rod is connected to the first sealing cover; the spring is sleeved on the connecting rod and arranged in the fixed cylinder; one end of the spring abuts against the connecting rod, and the other end of the spring abuts against the fixed cylinder.

[0011] Specifically, the low-temperature chamber cover assembly includes a buffer sleeve and a second sealing cover, wherein one end of the buffer sleeve is arranged on the tensile test assembly, and the other end of the buffer sleeve is arranged on the second sealing cover; the second sealing cover is slidably covered with the access hole and is slidably and sealingly connected with the extension shaft of the electric telescopic rod.

[0012] Specifically, the tensile test assembly includes a fixed plate and a test telescopic rod, wherein the fixed plate is arranged at the bottom of the fastener, and one end of the buffer sleeve in the low-temperature chamber cover assembly is arranged on the fixed plate; the test telescopic rod is arranged on the fixed plate, and the extended axis of the test telescopic rod abuts against the test sample.

[0013] Specifically, a heating tube and a temperature controller are provided in the high-temperature test chamber, and a condensing tube and a temperature controller are provided in the low-temperature test chamber.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the appearance of a road marking paint crack resistance testing device according to an embodiment of the utility model;

[0017] Figure 2This is a schematic structural diagram of a road marking paint crack resistance testing device according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic structural diagram of a partition plate according to an embodiment of the utility model;

[0019] Figure 4 The figure is a schematic structural diagram of a buffer sleeve according to an embodiment of the utility model.

[0020] As shown in the figure: 1. Test box; 10. Support plate; 11. Partition plate; 110. Access hole; 12. High temperature test chamber; 120. Heating tube; 121. Thermostat; 13. Low temperature test chamber; 130. Condenser; 14. Ventilator; 2. Fasteners; 3. Test sample; 4. Tensile test assembly; 40. Fixing plate; 41. Test telescopic rod; 5. High temperature chamber cover assembly; 50. Buffer sleeve; 500. Fixing cylinder; 501. Connecting rod; 502. Spring; 51. First sealing cover; 6. Low temperature chamber cover assembly; 60. Second sealing cover; 7. Electric telescopic rod. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0022] The following is a description of a road marking paint crack resistance testing device according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 4 As shown, the road marking paint crack resistance testing device of the embodiment of the utility model may include a test box 1, a fastener 2, a test sample 3, a tensile test assembly 4, a high temperature chamber cover assembly 5, a low temperature chamber cover assembly 6 and an electric telescopic rod 7.

[0024] The test box 1 may include two support plates 10 and a partition plate 11 .

[0025] It should be noted that the support plate 10 described in this embodiment is vertically installed in the test box 1, and the partition plate 11 is horizontally installed in the test box 1, so as to achieve separation of different areas.

[0026] It should be noted that the test box 1 described in this embodiment is provided with a ventilation fan 14, so as to improve the ventilation efficiency in the high-temperature chamber, and when the relevant personnel forget to manually open the door of the high-temperature test chamber 12 (not shown in the figure), the ventilation fan 14 can quickly ventilate the test sample 3, so that the test sample 3 can be quickly cooled to room temperature and then enter the low-temperature test chamber 13, thereby improving the test efficiency of the device.

[0027] Wherein, two support plates 10 are respectively arranged in the test box 1;

[0028] The partition plate 11 is disposed in the test box 1 , and the partition plate 11 separates the test box 1 into a high temperature test chamber 12 and a low temperature test chamber 13 , and an access hole 110 is opened on the partition plate 11 ;

[0029] The fastener 2 is slidably disposed on the support plate 10;

[0030] It should be noted that the fastener 2 described in this embodiment is a common fastening tool on the market, which can fix the test sample 3 on the fastener 2 to complete the test of the test sample 3.

[0031] It should be noted that the fastener 2 described in this embodiment can enter the low-temperature test chamber 13 from the high-temperature test chamber 12 through the entry hole 110, so that the device can continuously perform low-temperature and high-temperature crack resistance tests without repeatedly installing and disassembling the test sample 3, thereby improving the efficiency of the road marking paint crack resistance performance test and reducing the cost of the road marking paint crack resistance performance test.

[0032] The test specimen 3 is set on the fastener 2.

[0033] It should be noted that the bottom plate of the test sample 3 described in this embodiment is a spring 502 steel plate, and a frosted layer is provided on the spring 502 steel plate, and the road markings are coated on the frosted layer, thereby simulating the actual conditions of the road and improving the accuracy of the test.

[0034] The tensile test assembly 4 is disposed at the bottom of the fastener 2 and abuts against the test sample 3 .

[0035] It can be understood that the tensile testing assembly 4 is used to test the tensile properties of the road marking paint, and to test the crack resistance of the road marking paint at high and low temperatures in different chambers.

[0036] The high temperature chamber cover 5 is arranged on the fastener 2 and slidably covers the access hole 110. The low temperature chamber cover 6 is arranged on the electric telescopic rod 7 and slidably covers the access hole 110. The electric telescopic rod 7 is arranged between the support plates 10, and the extension shaft of the electric telescopic rod 7 is connected to the fastener 2.

[0037] It can be understood that, through the arrangement of the high temperature chamber cover 5 and the low temperature chamber cover 6, when the test sample 3 is tested in the high temperature chamber cover 5 and the low temperature chamber cover 6 respectively, the corresponding chamber can quickly reach the corresponding temperature, and when the crack resistance test is carried out in one chamber, the temperature in the other chamber can be pre-processed, and the partition plate 11, the high temperature chamber cover 5 and the low temperature chamber cover 6 are made of insulation materials, thereby further improving the testing efficiency of the present device.

[0038] It can be understood that the test sample 3 is controlled to enter different temperature chambers by the extension and retraction of the electric telescopic rod 7 .

[0039] Specifically, in the actual operation process, the relevant personnel put the test sample 3 into the fastener 2 for fixing, thereby starting the device, and the controller (not shown in the figure) heats the temperature in the high-temperature test chamber 12. After reaching the specified temperature, the tensile test component 4 abuts the test sample 3 for a tensile test. After the high-temperature crack resistance test is completed, the electric telescopic rod 7 contracts and drives the fastener 2 and the test sample 3 to move from the high-temperature test chamber 12 to the low-temperature test chamber 13. At this time, the low-temperature covering part moves downward to release the covering of the access hole 110. After the high-temperature chamber covering part 5 covers the access hole 110 driven by the fastener 2, the controller controls the temperature in the low-temperature test chamber 13. After reaching the specified temperature, the tensile test component 4 abuts the test sample 3 for a tensile test. After the low-temperature crack resistance test is completed, the relevant personnel take out the test sample 3 and observe the crack resistance test of the road marking paint, thereby improving the efficiency of the test of the device and reducing the cost of the test of the device.

[0040] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the high temperature chamber cover assembly 5 may include a buffer sleeve 50 and a first sealing cover 51 .

[0041] One end of the buffer sleeve 50 is arranged on the fastener 2 , and the other end of the buffer sleeve 50 is arranged on the first sealing cover 51 . The first sealing cover 51 is slidably covered with the access hole 110 .

[0042] It should be noted that the first sealing cover 51 described in this embodiment is made of thermal insulation material, so that when the test sample 3 is tested in the high-temperature test chamber 12 and the low-temperature test chamber 13 is temperature pretreated in advance, the temperature offset between the high-temperature test chamber 12 and the low-temperature test chamber 13 is greatly reduced, and the setting of temperature pretreatment of the low-temperature test chamber 13 can further improve the test efficiency of the device.

[0043] In one embodiment of the present invention, Figure 1-Figure 4 As shown, the buffer sleeve 50 may include a fixing cylinder 500 , a connecting rod 501 and a spring 502 .

[0044] Among them, the fixed cylinder 500 is set on the fastener 2, one end of the connecting rod 501 is abutted and set in the fixed cylinder 500, the other end of the connecting rod 501 is connected to the first sealing cover 51, the spring 502 is sleeved on the connecting rod 501 and set in the fixed cylinder 500, one end of the spring 502 is abutted against the connecting rod 501, and the other end of the spring 502 is abutted against the fixed cylinder 500.

[0045] It can be understood that, by disposing the buffer sleeve 50 , the sealing effect of the first sealing cover 51 on the through hole 110 can be improved.

[0046] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the low temperature chamber cover assembly 6 may include a buffer sleeve 50 and a second sealing cover 60 .

[0047] Among them, one end of the buffer sleeve 50 is arranged on the tensile test assembly 4, and the other end of the buffer sleeve 50 is arranged on the second sealing cover 60. The second sealing cover 60 is slidably covered with the access hole 110 and is slidably sealed and connected with the extension shaft of the electric telescopic rod 7.

[0048] It should be noted that the second sealing cover 60 and the first sealing cover 51 described in the summary of this embodiment are corrugated sealing covers commonly seen on the market, and both the first sealing cover 51 and the second sealing cover 60 are made of thermal insulation materials, and the provision of the corrugated sealing covers further improves the sealing effect between the high temperature test chamber 12 and the low temperature test chamber 13.

[0049] In one embodiment of the present invention, Figure 1-Figure 3 As shown, the tensile test assembly 4 may include a fixing plate 40 and a test telescopic rod 41 .

[0050] Among them, the fixing plate 40 is arranged at the bottom of the fastener 2, and one end of the buffer sleeve 50 in the low-temperature chamber cover 6 is arranged on the fixing plate 40, the test telescopic rod 41 is arranged on the fixing plate 40, and the extended axis of the test telescopic rod 41 abuts against the test sample 3.

[0051] It should be noted that the test telescopic rod 41 described in this embodiment is an electric telescopic rod, so as to improve the automatic control efficiency of the device.

[0052] In one embodiment of the present invention, Figure 1-Figure 3 As shown, a heating tube 120 and a temperature controller 121 are disposed in the high temperature test chamber 12 , and a condensing tube 130 and a temperature controller 121 are disposed in the low temperature test chamber 13 .

[0053] It can be understood that by setting the heating tube 120, the condensing tube 130 and the temperature controller 121, the corresponding chambers can reach the specified temperature of the test, thereby improving the accuracy of the test of the device.

[0054] Specifically, in the actual operation process, the relevant personnel put the test sample 3 into the fastener 2 for fixing, thereby starting the device. After the controller controls the heating tube 120 to make the high-temperature test chamber 12 reach the specified temperature, the test telescopic rod 41 extends out to abut the test sample 3 for tensile testing. After the high-temperature crack resistance test is completed, the test sample 3 returns to normal temperature, and the electric telescopic rod 7 contracts to drive the fastener 2 and the test sample 3 to move from the high-temperature test chamber 12 to the low-temperature test chamber 13. At this time, the low-temperature cover moves downward to release the cover on the access hole 110. After the high-temperature chamber cover 5 covers the access hole 110 driven by the fastener 2 and the buffer sleeve 50, the controller controls the condenser 130 to make the low-temperature test chamber 13 reach the specified temperature, and the tensile test assembly 4 abuts the test sample 3 for tensile testing. After the low-temperature crack resistance test is completed, the relevant personnel take out the test sample 3 and observe the crack resistance test of the road marking paint, thereby improving the efficiency of the test of the device and reducing the cost of the test of the device.

[0055] In summary, the road marking paint crack resistance testing device of the embodiment of the utility model can continuously perform low-temperature and high-temperature crack resistance tests without repeatedly installing and disassembling test samples, thereby improving the efficiency of road marking paint crack resistance testing and reducing the cost of road marking paint crack resistance testing.

[0056] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A road marking paint crack resistance testing device, characterized in that: It includes a test box, fasteners, test samples, tensile test components, high temperature chamber cover parts, low temperature chamber cover parts and electric telescopic rods, among which: The test box includes two support plates and a partition plate, wherein: The two support plates are respectively arranged in the test box; The partition plate is arranged in the test box, the partition plate separates the test box into a high temperature test chamber and a low temperature test chamber, and an access hole is opened on the partition plate; The fastener is slidably disposed on the support plate; The test sample is disposed on the fastener; The tensile test assembly is disposed at the bottom of the fastener and abuts against the test sample; The high temperature chamber cover is arranged on the fastener and is slidably covered with the access hole; The low temperature chamber covering member is arranged on the electric telescopic rod and slidably covers the access hole; The electric telescopic rod is arranged between the support plates, and the extension shaft of the electric telescopic rod is connected to the fastener.

2. The road marking paint crack resistance testing device according to claim 1, characterized in that: The high temperature chamber cover assembly comprises a buffer sleeve and a first sealing cover, wherein: One end of the buffer sleeve is arranged on the fastener, and the other end of the buffer sleeve is arranged on the first sealing cover; The first sealing cover is slidably covered with the access hole.

3. The road marking paint crack resistance testing device according to claim 2, characterized in that: The buffer sleeve includes a fixing tube, a connecting rod and a spring, wherein: The fixing tube is arranged on the fastener; One end of the connecting rod is abutted and disposed in the fixing tube, and the other end of the connecting rod is connected to the first sealing cover; The spring is sleeved on the connecting rod and arranged in the fixing cylinder; One end of the spring abuts against the connecting rod, and the other end of the spring abuts against the fixing tube.

4. The road marking paint crack resistance testing device according to claim 3, characterized in that: The low temperature chamber cover assembly comprises the buffer sleeve and the second sealing cover, wherein: One end of the buffer sleeve is arranged on the tensile test assembly, and the other end of the buffer sleeve is arranged on the second sealing cover; The second sealing cover is slidably covered with the access hole and is slidably and sealingly connected with the extension shaft of the electric telescopic rod.

5. The road marking paint crack resistance testing device according to claim 4, characterized in that: The tensile test assembly includes a fixed plate and a test telescopic rod, wherein: The fixing plate is arranged at the bottom of the fastener, and one end of the buffer sleeve in the low-temperature chamber cover assembly is arranged on the fixing plate; The testing telescopic rod is arranged on the fixing plate, and the extension shaft of the testing telescopic rod abuts against the testing sample.

6. The road marking paint crack resistance testing device according to claim 1, characterized in that: A heating tube and a temperature controller are arranged in the high-temperature test chamber, and a condenser tube and the temperature controller are arranged in the low-temperature test chamber.

Images