Cement mortar anti-cracking performance testing device for dynamic temperature and humidity monitoring

Abstract

The utility model discloses a cement mortar anti-cracking performance testing device for dynamic temperature and humidity monitoring, and belongs to the technical field of cement mortar testing devices.The cement mortar anti-cracking performance testing device comprises a detection table, a plurality of detection assemblies are arranged above the detection table, and each detection assembly comprises a lower detection plate and an upper detection plate; the upper detection plate is located above the lower detection plate, a plurality of air holes are formed in the lower detection plate and the upper detection plate, fans are fixedly installed in the air holes, and a plurality of iodine-tungsten lamps are installed at the top of the lower detection plate and the bottom of the upper detection plate in an embedded mode; a to-be-detected cement mortar sample is placed on the supporting rods, air holes fixedly provided with fans are formed in the lower detection plate and the upper detection plate correspondingly, air blowing testing can be conducted on the upper face and the lower face of the cement mortar sample at the same time, and iodine-tungsten lamps are embedded in the top of the lower detection plate and the bottom of the upper detection plate correspondingly; the upper and lower surfaces of a cement mortar sample can be simultaneously subjected to irradiation test, and the test is accurate.

Description

Technical Field

[0001] This application relates to the technical field of cement mortar testing devices, and particularly to a cement mortar crack resistance testing device for dynamic temperature and humidity monitoring. Background Art

[0002] Cement mortar is composed of cement, fine aggregate and water, that is, cement + sand + water, and is prepared according to needs; the plastic shrinkage cracking of cement mortar is mainly attributed to the tensile stress generated by the capillary water loss caused by the evaporation of mortar water exceeding the plastic tensile strength of the mortar itself. Once cracking occurs, it will greatly affect the safety of use. Therefore, a testing device is needed to test cement mortar samples.

[0003] In the patent document with the publication number CN218445513U that has been published, a cement mortar crack resistance testing device for dynamic temperature and humidity monitoring is provided. This published patent document uses induction chips to monitor the internal and external temperature and humidity of the mortar in real time from multiple directions, and transmits the data to the data acquisition instrument through a data cable, which can monitor the dynamic temperature and humidity changes of the mortar. The template height, the power of the iodine tungsten lamp, and the fan wind speed can all be adjusted to achieve the monitoring of mortars with different thicknesses and under different external environments; however, in the above published patent document, only the top surface of the cement mortar test sample can be blown and irradiated for testing, resulting in relatively low test accuracy. Utility Model Content

[0004] Aiming at the deficiencies of the prior art, this application provides a cement mortar crack resistance testing device for dynamic temperature and humidity monitoring, which overcomes the deficiencies of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above object, this application provides the following technical solution: A cement mortar crack resistance testing device for dynamic temperature and humidity monitoring, including a detection table, and a plurality of detection components are arranged above the detection table. Each group of detection components includes a lower detection plate and an upper detection plate. The upper detection plate is located above the lower detection plate. A plurality of air holes are opened on both the lower detection plate and the upper detection plate, and a fan is fixedly installed inside the air holes. A plurality of iodine tungsten lamps are embedded and installed on the top of the lower detection plate and the bottom of the upper detection plate, and a plurality of support rods are fixedly connected to the top of the lower detection plate.

[0006] By adopting the above technical solution, the cement mortar sample to be detected is placed on the support rods. The air holes with fixedly installed fans are opened on both the lower detection plate and the upper detection plate, so that the upper and lower surfaces of the cement mortar sample can be blown simultaneously for testing. Moreover, the iodine tungsten lamps embedded and installed on the top of the lower detection plate and the bottom of the upper detection plate can irradiate the upper and lower surfaces of the cement mortar sample simultaneously for testing, and the test accuracy is high.

[0007] As a preferred technical solution of the present application, a bracket is fixedly connected to the top of the inspection table, and a plurality of servo motors are fixedly installed on the top of the bracket. One side of the upper inspection plate is fixedly connected with a connecting block one, and the other side of the upper inspection plate is fixedly connected with a connecting block two. A lead screw passes through the connecting block one, and the connecting block one is threadedly connected with the lead screw. A vertical shaft passes through the connecting block two, and the connecting block two is slidably connected with the vertical shaft. The upper end of the lead screw passes through the bracket and is fixedly installed on the output end of the servo motor, and the lower end of the lead screw is rotatably connected to the top of the inspection table. The upper end of the vertical shaft is fixedly installed on the bracket, and the lower end of the vertical shaft is fixedly installed on the top of the inspection table.

[0008] By adopting the above technical solution, the servo motor can drive the lead screw to rotate, thereby driving the upper inspection plate to move in the vertical direction to adjust the height of the upper inspection plate and prevent the distance between the upper fan and the iodine tungsten lamp and the cement mortar sample from being too far.

[0009] As a preferred technical solution of the present application, a plurality of boxes are fixedly installed at the bottom of the inspection table, and a data collector and an induction sheet are respectively arranged inside the boxes. The induction sheet is electrically connected to the data collector through a wire.

[0010] By adopting the above technical solution, by placing the induction sheet on the cement mortar sample, the temperature and humidity of the cement mortar sample can be dynamically and real-time monitored through the data collector.

[0011] As a preferred technical solution of the present application, support feet are fixedly connected to the four corners at the bottom of the lower inspection plate, and the bottoms of the support feet are fixedly installed on the top of the inspection table.

[0012] By adopting the above technical solution, the lower inspection plate is raised to prevent the air holes below from being blocked.

[0013] As a preferred technical solution of the present application, support legs are fixedly connected to the four corners at the bottom of the inspection table, and anti-slip pads are arranged at the bottoms of the support legs.

[0014] By adopting the above technical solution, the stability of the placement of the test device is increased.

[0015] As a preferred technical solution of the present application, a switch for an external power supply is arranged on the front side of the inspection table, and the servo motor, the fan and the iodine tungsten lamp are all electrically connected to the switch through wires.

[0016] By adopting the above technical solution, it is convenient to control the servo motor, the fan and the iodine tungsten lamp to work with the switch.

[0017] The beneficial effects of the present application:

[0018] 1. By placing the cement mortar sample to be detected on the support rod, and through the air holes on both the lower detection plate and the upper detection plate where fans are fixedly installed, the upper and lower surfaces of the cement mortar sample can be blown simultaneously for testing. Moreover, through the iodine tungsten lamps embedded at the top of the lower detection plate and the bottom of the upper detection plate, the upper and lower surfaces of the cement mortar sample can be irradiated simultaneously for testing, and the testing is accurate.

[0019] 2. The servo motor can drive the lead screw to rotate. Since the first connecting block is threadedly connected to the lead screw and the second connecting block is slidably connected to the vertical shaft, the upper detection plate can be driven to move in the vertical direction to adjust the height of the upper detection plate, preventing the fans and iodine tungsten lamps above from being too far away from the cement mortar sample. And by placing the induction sheet on the cement mortar sample, the temperature and humidity of the cement mortar sample can be dynamically and real-time monitored through the data acquisition instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present application;

[0021] Figure 2 is the present application Figure 1 the enlarged view of A in;

[0022] Figure 3 is the present application Figure 1 the enlarged view of B in.

[0023] In the figure: 1, detection table; 2, lower detection plate; 3, upper detection plate; 4, bracket; 5, servo motor; 6, lead screw; 7, vertical shaft; 8, box body; 9, data acquisition instrument; 10, induction sheet; 11, support leg; 12, switch; 13, air hole; 14, fan; 15, iodine tungsten lamp; 16, support rod; 17, support foot; 18, first connecting block; 19, second connecting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0025] Refer to Figures 1-3, A test device for the crack resistance performance of cement mortar for dynamic temperature and humidity monitoring, including a detection table 1. Above the detection table 1, there are several detection components. Each group of detection components includes a lower detection plate 2 and an upper detection plate 3. The upper detection plate 3 is above the lower detection plate 2. A number of air holes 13 are provided on both the lower detection plate 2 and the upper detection plate 3. Inside the air holes 13, fans 14 are fixedly installed. A number of iodine tungsten lamps 15 are embedded at the top of the lower detection plate 2 and the bottom of the upper detection plate 3. At the top of the lower detection plate 2, a number of support rods 16 are fixedly connected; by placing the cement mortar sample to be detected on the support rods 16, through the air holes 13 with fans 14 fixedly installed on both the lower detection plate 2 and the upper detection plate 3, the upper and lower surfaces of the cement mortar sample can be blown simultaneously for testing, and through the iodine tungsten lamps 15 embedded at the top of the lower detection plate 2 and the bottom of the upper detection plate 3, the upper and lower surfaces of the cement mortar sample can be irradiated simultaneously for testing, and the test is accurate.

[0026] Refer to Figure 1 and Figure 3 , At the top of the detection table 1, a bracket 4 is fixedly connected. At the top of the bracket 4, a number of servo motors 5 are fixedly installed. On one side of the upper detection plate 3, a connecting block one 18 is fixedly connected, and on the other side of the upper detection plate 3, a connecting block two 19 is fixedly connected. A lead screw 6 passes through the connecting block one 18, and the connecting block one 18 is threadedly connected with the lead screw 6. A vertical shaft 7 passes through the connecting block two 19, and the connecting block two 19 is slidably connected with the vertical shaft 7. The upper end of the lead screw 6 passes through the bracket 4 and is fixedly installed with the output end of the servo motor 5, and the lower end of the lead screw 6 is rotatably connected with the top of the detection table 1. The upper end of the vertical shaft 7 is fixedly installed with the bracket 4, and the lower end of the vertical shaft 7 is fixedly installed with the top of the detection table 1; by driving the lead screw 6 to rotate through the servo motor 5, since the connecting block one 18 is threadedly connected with the lead screw 6 and the connecting block two 19 is slidably connected with the vertical shaft 7, the upper detection plate 3 can be driven to move in the vertical direction to adjust the height of the upper detection plate 3 and prevent the fans 14 and iodine tungsten lamps 15 above from being too far away from the cement mortar sample.

[0027] Refer to Figure 1 , At the bottom of the detection table 1, a number of boxes 8 are fixedly installed. Inside the boxes 8, a data collector 9 and an induction chip 10 are respectively arranged. The induction chip 10 is electrically connected to the data collector 9 through a wire; by placing the induction chip 10 on the cement mortar sample, the temperature and humidity of the cement mortar sample can be dynamically and real-time monitored through the data collector 9.

[0028] Refer to Figure 2 , At the four corners of the bottom of the lower detection plate 2, support feet 17 are fixedly connected. The bottom of the support feet 17 is fixedly installed with the top of the detection table 1; by raising the lower detection plate 2 through the support feet 17, the air holes 13 below are prevented from being blocked.

[0029] Refer toFigure 1 At the four corners at the bottom of the detection table 1, there are fixed legs 11 connected, and anti-slip pads are provided at the bottoms of the legs 11; through the anti-slip pads provided at the bottoms of the legs 11, the stability of the placement of the test device is increased.

[0030] Refer to Figures 1-3 On the front side of the detection table 1, there is a switch 12 for an external power supply, and the servo motor 5, the fan 14, and the iodine tungsten lamp 15 are electrically connected to the switch 12 through wires; it is convenient to control the operation of the servo motor 5, the fan 14, and the iodine tungsten lamp 15 through the switch 12.

[0031] Working principle: During use, first place the cement mortar sample to be detected on the support rod 16. The servo motor 5 can drive the lead screw 6 to rotate. Since the first connecting block 18 is threadedly connected to the lead screw 6 and the second connecting block 19 is slidably connected to the vertical shaft 7, the upper detection plate 3 can be driven to move in the vertical direction to adjust the height of the upper detection plate 3 to prevent the fan 14 and the iodine tungsten lamp 15 above from being too far away from the cement mortar sample. Through the air holes 13 for fixedly installing the fan 14 opened on both the lower detection plate 2 and the upper detection plate 3, the upper and lower surfaces of the cement mortar sample can be blown simultaneously for testing, and through the iodine tungsten lamps 15 embedded and installed at the top of the lower detection plate 2 and the bottom of the upper detection plate 3, the upper and lower surfaces of the cement mortar sample can be irradiated simultaneously for testing, and the test is accurate. Finally, by placing the induction sheet 10 on the cement mortar sample, the temperature and humidity of the cement mortar sample can be dynamically and real-time monitored through the data acquisition instrument 9.

[0032] The above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A cement mortar crack resistance testing device for dynamic temperature and humidity monitoring, comprising a testing platform (1), characterized in that: A plurality of detection components are arranged above the detection platform (1), and each group of the detection components comprises a lower detection plate (2) and an upper detection plate (3), the upper detection plate (3) being located above the lower detection plate (2), and a plurality of air holes (13) are provided on the lower detection plate (2) and the upper detection plate (3), and a fan (14) is fixedly installed inside the air hole (13), a plurality of iodine tungsten lamps (15) are embedded and installed on the top of the lower detection plate (2) and the bottom of the upper detection plate (3), and a plurality of support rods (16) are fixedly connected to the top of the lower detection plate (2).

2. A cement mortar crack resistance testing device for dynamic temperature and humidity monitoring according to claim 1, characterized in that: The top of the detection platform (1) is fixedly connected to a bracket (4), and a plurality of servo motors (5) are fixedly installed on the top of the bracket (4). A connecting block 1 (18) is fixedly connected to one side of the upper detection plate (3), and a connecting block 2 (19) is fixedly connected to the other side of the upper detection plate (3). A lead screw (6) passes through the connecting block 1 (18), and the connecting block 1 (18) and the lead screw (6) are connected by threads. A vertical shaft (7) passes through the connecting block 2 (19), and the connecting block 2 (19) is slidably connected to the vertical shaft (7). The upper end of the lead screw (6) passes through the bracket (4) and is fixedly installed with the output end of the servo motor (5), and the lower end of the lead screw (6) is rotatably connected to the top of the detection platform (1). The upper end of the vertical shaft (7) is fixedly installed with the bracket (4), and the lower end of the vertical shaft (7) is fixedly installed with the top of the detection platform (1).

3. A cement mortar crack resistance testing device for dynamic temperature and humidity monitoring according to claim 1, characterized in that: A plurality of boxes (8) are fixedly mounted on the bottom of the detection platform (1), and data acquisition devices (9) and induction sheets (10) are respectively arranged inside the boxes (8), and the induction sheets (10) are electrically connected to the data acquisition devices (9) via wires.

4. A cement mortar crack resistance testing device for dynamic temperature and humidity monitoring according to claim 1, characterized in that: Support feet (17) are fixedly connected to the four corners of the bottom of the lower detection plate (2), and the bottom of the support feet (17) is fixedly mounted on the top of the detection platform (1).

5. The cement mortar crack resistance testing device for dynamic temperature and humidity monitoring according to claim 1 is characterized in that: Support legs (11) are fixedly connected to the four corners of the bottom of the testing platform (1), and anti-slip pads are provided at the bottoms of the support legs (11).

6. A cement mortar crack resistance testing device for dynamic temperature and humidity monitoring according to claim 2, characterized in that: A switch (12) for an external power supply is arranged on the front side of the detection platform (1), and the servo motor (5), the fan (14) and the iodine tungsten lamp (15) are all electrically connected to the switch (12) via wires.

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