Anti-crack mortar performance detection device

Abstract

The utility model belongs to building material detection technical field discloses a kind of anti-crack mortar performance detection device, including fixing frame, fixed plate two, detection mechanism and compression resistance mechanism, detection mechanism includes lifting frame, cylinder and connecting rod, cylinder drives lifting frame to lift, and the top of lifting frame is connected with sealing plate, sealing plate is the box structure with top opening, and inner wall is attached with heat wire, sealing plate bottom surface is fixedly connected with limit rod, limit rod slidingly passes through the left and right two side walls of fixing frame, compression resistance mechanism includes hydraulic push rod fixedly connected in the inside of fixed plate two, and the output end of hydraulic push rod is connected with push plate.The utility model constructs airtight temperature control space by the sealing plate driven by cylinder, and simultaneously integrates the compression resistance mechanism driven by hydraulic pressure in space interior, realizes the integration of temperature environment simulation and mechanical property test, reaches the effect of improving the comprehensiveness, automation and data accuracy of detection.

Description

Technical Field

[0001] This utility model relates to the field of building material testing technology, and in particular to a device for testing the performance of crack-resistant mortar. Background Technology

[0002] Crack-resistant mortar is an indispensable material in building exterior wall insulation systems. It is used to resist the formation of cracks under various stresses and ensure the safety and durability of building structures. Therefore, it is essential to conduct comprehensive and accurate testing of the performance of crack-resistant mortar.

[0003] In existing technologies, the performance testing of crack-resistant mortar involves conducting temperature environment simulation testing and mechanical performance testing in stages on different equipment. In temperature simulation testing, mortar samples need to be placed in a separate temperature chamber, and the mortar is observed to develop cracks under thermal expansion and contraction through heating or cooling. In mechanical performance testing, the samples need to be transferred to a specialized pressure testing machine for stress testing. This staged and equipment-specific operation process is cumbersome, not only consuming a lot of time, but also causing the stress state of the mortar samples to be affected by changes in temperature and humidity during sample transfer, thus affecting the final test data and causing the test results to deviate from the actual service conditions of the mortar.

[0004] In the existing technology, the equipment used for mechanical testing does not adequately consider the uniformity and adjustability of the stress points of mortar specimens when applying pressure. A single pressure application method cannot simulate the complex stress state of mortar in actual applications, making it difficult to comprehensively evaluate the crack resistance performance of mortar. Furthermore, due to the lack of a highly integrated automated control system, the entire testing process requires frequent manual intervention, which increases the complexity of operation and introduces human error, further reducing the accuracy and reliability of the test data.

[0005] Therefore, this utility model proposes a crack-resistant mortar performance testing device to address the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the crack-resistant mortar performance testing device, such as the cumbersome operation process of the stage and equipment, the impact of the sample transfer process on the accuracy of the data, and the single mechanical testing pressure method, this utility model aims to provide a crack-resistant mortar performance testing device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a crack-resistant mortar performance testing device, including: a fixing frame, a fixing plate, a testing mechanism, and a compressive strength mechanism.

[0008] The detection mechanism includes a lifting frame, a sealing plate, and a heat-conducting wire, while the pressure-resistant mechanism includes a hydraulic push rod, a push plate, a slide rod, and a support plate.

[0009] The hydraulic push rod is fixedly connected to the inside of the second fixed plate, the slide rod is fixedly connected to the bottom surface of the second fixed plate and extends vertically, the support plate is fixedly connected to the bottom end of the slide rod, the push plate is slidably connected to the outer surface of the slide rod through the through hole, and the output end of the hydraulic push rod is fixedly connected to the push plate.

[0010] The sealing plate is a box structure with an open top and heat-conducting wires attached to the inner wall. The sealing plate is driven to rise by the lifting frame and is detachably and sealed to the fixed plate, so that the sealing plate surrounds the support plate and the push plate and forms a sealed testing space in the fixed frame, realizing the integrated function of testing the mechanical properties of crack-resistant mortar in a sealed temperature-controlled environment.

[0011] Preferably, the detection mechanism further includes a cylinder and multiple connecting rods. The cylinder is fixedly connected to the bottom of the fixed frame. One end of the connecting rod is drivenly connected to the output end of the cylinder, and the other end of the connecting rod is rotatably connected to the lifting frame. The cylinder is used to drive the connecting rod to expand or retract, so as to drive the lifting frame to rise and fall. The connecting rod is preferably a plurality of rods arranged in a scissor-like manner to ensure the stability and automation of the lifting.

[0012] Preferably, a fixing plate is fixedly connected to the top of the lifting frame, and a sealing plate is fixedly connected to the top surface of the fixing plate, with the fixing plate serving as a support base for the sealing plate.

[0013] Preferably, a limiting rod is fixedly connected to the bottom surface of the sealing plate. The limiting rod slides vertically through the left and right side walls of the fixed frame. The limiting rod is used to limit the movement trajectory of the sealing plate and ensure the vertical accuracy of lifting.

[0014] Preferably, there are four sliding rods, which are located at the four corners of the bottom surface of the fixed plate. The four corners of the push plate are provided with through holes that are compatible with the sliding rods. The push plate slides along the length of the sliding rods through the through holes. This structure ensures the stability and anti-deflection ability of the push plate during the pressure application process.

[0015] Preferably, a gasket is fixedly connected to the bottom of the push plate. The gasket is preferably made of wear-resistant rubber to buffer the mechanical impact applied by the pressure push rod and reduce mechanical fatigue.

[0016] Preferably, the bottom of the pad is equipped with multiple pressure points, which are fixed to the pad by threaded connection. The pressure points can be replaced and adjusted according to experimental requirements to adjust the force position of the downward pressure to meet the requirements of different mechanical tests such as compression or bending resistance.

[0017] Preferably, a display is fixedly installed on the front side of the second fixing plate. The display is electrically connected to the heat-conducting wire and the hydraulic push rod, and is used to display the temperature and pressure parameters in the sealed detection space in real time, so as to facilitate the operator to monitor and record data.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problem that existing technologies cannot integrate temperature environment simulation and mechanical performance testing in the same device by closing the bottom lifting sealing plate and the top fixed plate to form a sealed temperature control space, and suspending a hydraulically driven anti-pressure mechanism in the sealed space. This achieves the effect of improving the comprehensiveness, accuracy and efficiency of testing.

[0020] 2. This utility model achieves stable lifting and lowering of the sealing plate through a cylinder-driven lifting mechanism in cooperation with a limit rod, and a hydraulic push rod drives the push plate to apply pressure precisely along the slide rod. It also features an adjustable force point, which solves the problems of large manual operation errors and insufficient stability of moving parts in the prior art. This results in improved automated detection accuracy, structural robustness, and extended equipment service life. Attached Figure Description

[0021] Figure 1 This is a perspective view of a crack-resistant mortar performance testing device proposed in this utility model;

[0022] Figure 2 This is a front view of a crack-resistant mortar performance testing device proposed in this utility model;

[0023] Figure 3 This is a side view of a crack-resistant mortar performance testing device proposed in this utility model;

[0024] Figure 4 This is a structural exploded view of the crack-resistant mortar performance testing device proposed in this utility model;

[0025] Figure 5 This is a partial structural exploded view of the crack-resistant mortar performance testing device proposed in this utility model;

[0026] Figure 6 This is a partial structural diagram of a crack-resistant mortar performance testing device proposed in this utility model.

[0027] Legend:

[0028] 1. Fixing frame; 2. Detection mechanism; 201. Lifting frame; 202. Connecting rod; 203. Cylinder; 204. Fixing plate one; 205. Sealing plate; 206. Limiting rod; 207. Heat-conducting wire; 3. Anti-compression mechanism; 301. Hydraulic push rod; 302. Push plate; 303. Gasket; 304. Slide rod; 305. Force point; 306. Support plate; 4. Fixing plate two; 5. Display. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0030] Example:

[0031] Please refer to Figures 1 to 6 This utility model provides a crack-resistant mortar performance testing device, which aims to solve the problem in the prior art that it is impossible to simultaneously simulate temperature change environment and conduct mechanical performance testing in the same device.

[0032] Please refer to Figure 1 and Figure 2 The crack-resistant mortar performance testing device includes a fixed frame 1 and a fixed plate 2 4 fixedly connected to the top of the fixed frame 1. The fixed plate 2 4 serves as the top structure and the top cover of the sealed testing space.

[0033] The crack-resistant mortar performance testing device also includes a testing mechanism 2 installed at the bottom of the fixed frame 1 and a compression mechanism 3 installed at the bottom of the fixed plate 4. The testing mechanism 2 is used to realize temperature simulation and the construction of a closed space, and the compression mechanism 3 is used to apply pressure to the mortar sample to conduct compression and flexural strength tests.

[0034] The testing mechanism 2 includes a lifting frame 201 and a sealing plate 205 connected to the top of the lifting frame 201. The lifting frame 201 is located on the bottom inner side of the fixed frame 1. Multiple connecting rods 202 arranged in a scissor-like pattern are rotatably connected inside the lifting frame 201. One end of the connecting rod 202 is connected to the output end of the cylinder 203 fixedly installed at the bottom of the fixed frame 1. The other end of the connecting rod 202 is rotatably connected to the lifting frame 201. The cylinder 203 is used to drive the connecting rods 202 to expand or retract, so as to drive the lifting frame 201 to rise or fall in the vertical direction. A fixed plate 204 is fixedly connected to the top of the lifting frame 201, and the sealing plate 205 is fixedly connected to the top surface of the fixed plate 204.

[0035] The sealing plate 205 is a box structure with an open top. The inner wall is fitted with a heat-conducting wire 207, which is used to control and detect the temperature in the sealed space. The bottom surface of the sealing plate 205 is fixedly connected to a limiting rod 206. The limiting rod 206 slides vertically through the left and right side walls of the fixed frame 1. The limiting rod 206 is used to limit the movement trajectory of the sealing plate 205. When the cylinder 203 drives the sealing plate 205 to rise, the sealing plate 205 and the fixed plate 4 are detachably and sealed, thereby forming a sealed detection space in the fixed frame 1.

[0036] The anti-compression mechanism 3 includes a hydraulic push rod 301, a push plate 302, a slide rod 304, and a support plate 306. The hydraulic push rod 301 is fixedly connected to the inside of the fixed plate 4. The output end of the hydraulic push rod 301 is fixedly connected to the push plate 302. The slide rod 304 is fixedly connected to the bottom surface of the fixed plate 4 and extends vertically. The support plate 306 is fixedly connected to the bottom end of the slide rod 304. The push plate 302 slides along the outer surface of the slide rod 304 through a through hole. A gasket 303 is fixedly connected to the bottom of the push plate 302. The gasket 303 is made of wear-resistant rubber. Multiple force points 305 are installed at the bottom of the gasket 303. The force points 305 are fixed to the gasket 303 by threaded connection.

[0037] A display 5 is fixedly installed on the front side of the fixed plate 2 4. The display 5 is electrically connected to the heat-conducting wire 207 and the hydraulic push rod 301, and is used to display the temperature and pressure parameters in the sealed detection space.

[0038] Please refer to Figure 1 , Figure 2 and Figure 4 The anti-compression mechanism 3 includes four slide rods 304. The slide rods 304 extend vertically and are fixedly connected to the bottom surface of the fixing plate 2 4. There are four slide rods 304, which are located at the four corners of the bottom surface of the fixing plate 2 4. The support plate 306 is horizontally fixedly connected to the bottom end of the slide rods 304. The support plate 306 is used to place the mortar test block to be tested. The outer contour dimension of the support plate 306 is smaller than the internal cavity dimension of the sealing plate 205.

[0039] Meanwhile, the push plate 302 is provided with corresponding through holes that are adapted to the slide rod 304. The push plate 302 is slidably connected to the outer surface of the slide rod 304 through the through holes. In the assembled state, the four corners of the push plate 302 are provided with through holes that are adapted to the slide rod 304. The push plate 302 slides back and forth along the length direction of the slide rod 304, ensuring the high stability and anti-deflection ability of the push plate 302 during the pressure application process. The hydraulic push rod 301 is fixedly connected to the inside of the fixed plate 4. The output end of the hydraulic push rod 301 is fixedly connected to the push plate 302. The hydraulic push rod 301 is used to drive the push plate 302 to apply pressure along the slide rod 304.

[0040] The sealing plate 205 of the detection mechanism 2 is constructed as a box structure with an open top. When the cylinder 203 drives the lifting frame 201 to rise, the sealing plate 205 rises along the movement trajectory of the limit rod 206. The sealing plate 205 is detachably and sealed to the fixed plate 4, so that the sealing plate 205 surrounds the support plate 306 and the push plate 302, and forms a sealed detection space in the fixed frame 1. Thus, the construction and closure of the temperature environment are achieved through the lifting mechanism without interfering with the suspension structure of the anti-pressure mechanism 3.

[0041] A gasket 303 is fixedly connected to the bottom of the push plate 302. The gasket 303 is made of wear-resistant rubber and is used to reduce fatigue caused by mechanical operation and extend service life. Multiple force points 305 are installed on the bottom of the gasket 303. The force points 305 are fixed to the gasket 303 by threaded connection. The force points 305 are used to adjust the pressure point according to experimental requirements to achieve different experimental parameters.

[0042] After the sealed testing space is formed, the heat-conducting wire 207 attached to the inner wall begins to heat and control the temperature. The display 5 shows the temperature and pressure parameters in real time. The hydraulic push rod 301 begins to apply pressure after the temperature conditions are met, thereby realizing the integrated testing of temperature stress and mechanical stress of crack-resistant mortar.

[0043] In a preferred embodiment, to enhance the stability and automation of the lifting of the detection mechanism 2, the detection mechanism 2 further includes a cylinder 203 and multiple connecting rods 202. The cylinder 203 is fixedly connected to the bottom of the fixed frame 1. One end of the connecting rod 202 is connected to the output end of the cylinder 203, and the other end of the connecting rod 202 is rotatably connected to the lifting frame 201. The cylinder 203 is used to drive the connecting rod 202 to expand or retract, so as to drive the lifting frame 201 to rise and fall. The connecting rod 202 is preferably a plurality of rods arranged in a scissor-like manner.

[0044] As another preferred embodiment, in order to ensure that the sealing plate 205 has stable support and connection, the top of the lifting frame 201 is fixedly connected to the fixing plate 204, and the sealing plate 205 is fixedly connected to the top surface of the fixing plate 204.

[0045] As another preferred embodiment, in order to limit the movement trajectory of the sealing plate 205 and ensure the verticality of the lifting process, a limiting rod 206 is fixedly connected to the bottom surface of the sealing plate 205. The limiting rod 206 slides through the left and right side walls of the fixed frame 1 in the vertical direction. The limiting rod 206 is preferably made of wear-resistant material.

[0046] As another preferred embodiment, in order to enhance the stability and anti-overturning ability of the push plate 302 during the pressure application process, there are four slide rods 304. The four slide rods 304 are located at the four corners of the bottom surface of the fixed plate 4. The four corners of the push plate 302 are provided with through holes that are adapted to the slide rods 304. The push plate 302 slides along the length direction of the slide rods 304 through the through holes. The slide rods 304 are preferably implemented by linear guide rails or guide columns.

[0047] As another preferred embodiment, in order to reduce fatigue caused by mechanical operation and extend service life, a gasket 303 is fixedly connected to the bottom of the push plate 302. The gasket 303 is made of wear-resistant rubber and is used to buffer the mechanical impact applied by the pressure push rod 301.

[0048] As another preferred embodiment, in order to achieve precise adjustment of the pressure point under different experimental parameters, the bottom of the pad 303 is equipped with multiple pressure points 305. The pressure points 305 are fixed to the pad 303 by threaded connection. The pressure points 305 can be disassembled and replaced to adapt to different test requirements such as compression and bending resistance.

[0049] As another preferred embodiment, in order to facilitate users to observe and record experimental data, a display 5 is fixedly installed on the front side of the fixing plate 2 4. The display 5 is electrically connected to the heat-conducting wire 207 and the hydraulic push rod 301. The display 5 is used to display the temperature and pressure parameters in the sealed detection space in real time.

[0050] Working principle:

[0051] The mortar sample is placed on the upper surface of the support plate 306. Then, the cylinder 203 is activated. The output end of the cylinder 203 drives the connecting rod 202 to unfold, which drives the lifting frame 201 to rise vertically. The lifting frame 201 pushes the fixed plate 204 and the sealing plate 205 to move upward. Since the limiting rod 206 slides through the left and right side walls of the fixed frame 1, the movement trajectory of the sealing plate 205 is precisely limited. When the sealing plate 205 rises to the preset position, the sealing plate 205 and the fixed plate 4 are detachably sealed to form a sealed testing space. The box structure with the top opening of the sealing plate 205 ensures that the sealing plate 205 can surround the suspended support plate 306 and the push plate 302, thereby realizing the construction of a sealed space without affecting the structure of the compression mechanism 3.

[0052] After the sealed space is formed, the heating wire 207 begins to heat and control the temperature, simulating the thermal stress of mortar at different temperatures. The display 5 shows the temperature parameters inside the cavity in real time. After the temperature reaches the preset value and remains stable, the hydraulic push rod 301 is activated. The hydraulic push rod 301 drives the push plate 302 to descend vertically. The push plate 302 slides along the outer surface of the four slide rods 304 through the through hole. The slide rods 304 provide precise guidance for the push plate 302, effectively resisting the lateral force that may be generated during the movement, and ensuring the vertical stability and uniformity of the downward pressure.

[0053] The pad 303 and the pressure point 305 at the bottom of the push plate 302 apply pressure to the mortar sample placed on the support plate 306 to test the compressive and flexural strength of the mortar. The threaded connection design of the pressure point 305 allows the force position to be adjusted according to experimental requirements. The display 5 shows the pressure parameters in real time. After the test is completed, the hydraulic push rod 301 retracts, and the cylinder 203 drives the sealing plate 205 to descend and remove the mortar sample. Thus, through the synergistic action of the testing mechanism 2 and the compressive strength mechanism 3, the integrated testing of temperature stress and mechanical stress is realized, solving the problems of low detection accuracy and single function in the existing technology.

Claims

1. A crack-resistant mortar performance testing device, comprising a fixed frame (1), a fixed plate two (4) fixedly connected to the top of the fixed frame (1), a testing mechanism (2) installed at the bottom of the fixed frame (1), and a compressive strength mechanism (3) installed at the bottom of the fixed plate two (4). The detection mechanism (2) includes a lifting frame (201) and a sealing plate (205) connected to the top of the lifting frame (201). The inner wall of the sealing plate (205) is fitted with a heat-conducting wire (207). The anti-compression mechanism (3) includes a hydraulic push rod (301), a push plate (302), a slide rod (304), and a support plate (306). Its features are, The hydraulic push rod (301) is fixedly connected to the inside of the fixed plate two (4), the slide rod (304) is fixedly connected to the bottom surface of the fixed plate two (4) and extends in the vertical direction, the support plate (306) is fixedly connected to the bottom end of the slide rod (304), the push plate (302) is slidably connected to the outer surface of the slide rod (304) through the through hole, and the output end of the hydraulic push rod (301) is fixedly connected to the push plate (302); The sealing plate (205) is a box structure with an open top. The sealing plate (205) is driven to rise by the lifting frame (201) and is detachably and sealed to the fixing plate (4), so that the sealing plate (205) surrounds the support plate (306) and the push plate (302) and forms a sealed detection space in the fixing frame (1).

2. The crack-resistant mortar performance testing device according to claim 1, characterized in that, The detection mechanism (2) also includes a cylinder (203) and multiple connecting rods (202). The cylinder (203) is fixedly connected to the bottom of the fixed frame (1). One end of the connecting rod (202) is connected to the output end of the cylinder (203) in a transmission manner. The other end of the connecting rod (202) is rotatably connected to the lifting frame (201). The cylinder (203) is used to drive the connecting rod (202) to unfold or retract to drive the lifting frame (201) to rise and fall.

3. The crack-resistant mortar performance testing device according to claim 2, characterized in that, The top of the lifting frame (201) is fixedly connected to a fixing plate (204), and the sealing plate (205) is fixedly connected to the top surface of the fixing plate (204).

4. The crack-resistant mortar performance testing device according to claim 3, characterized in that, The bottom surface of the sealing plate (205) is fixedly connected to a limiting rod (206). The limiting rod (206) slides vertically through the left and right side walls of the fixing frame (1). The limiting rod (206) is used to restrict the movement trajectory of the sealing plate (205).

5. The crack-resistant mortar performance testing device according to claim 1, characterized in that, There are four slide rods (304), and the four slide rods (304) are located at the four corners of the bottom surface of the second fixing plate (4). The four corners of the push plate (302) are provided with through holes that are compatible with the slide rods (304). The push plate (302) slides along the length direction of the slide rods (304) through the through holes.

6. The crack-resistant mortar performance testing device according to claim 1, characterized in that, A gasket (303) is fixedly connected to the bottom of the push plate (302). The gasket (303) is made of wear-resistant rubber and is used to buffer the mechanical impact applied by the hydraulic push rod (301).

7. The crack-resistant mortar performance testing device according to claim 6, characterized in that, The bottom of the pad (303) is equipped with multiple force points (305), and the force points (305) are fixed to the pad (303) by means of threaded connection. The force points (305) are used to adjust the downward pressure position.

8. The crack-resistant mortar performance testing device according to claim 1, characterized in that, A display (5) is fixedly installed on the front side of the fixed plate 2 (4). The display (5) is electrically connected to the heat-conducting wire (207) and the hydraulic push rod (301). The display (5) is used to display the temperature and pressure parameters in the sealed detection space.

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