Building engineering concrete anti-cracking performance testing device

Abstract

The utility model discloses an anti-cracking performance testing device for constructional engineering concrete in the technical field of constructional engineering, which comprises a testing bin, a positioning mechanism is arranged in the testing bin, and displacement mechanisms are arranged on the left side and the right side of the testing bin. The positioning mechanism adopts a multi-end-point self-adaptive clamping structure, various types of concrete can be limited and clamped in a test area, a plurality of rubber mats in the multi-end-point self-adaptive clamping structure clamp the concrete in a point-by-point manner, and under the self-adaptive adjusting effect of a rotating column, a rotating rod and a spring, the plurality of rubber mats can be accurately attached to the concrete; in this way, concrete can be stably clamped to a designated position, the clamping effect of the positioning mechanism is uniform in stress, clamping is stable, and the accuracy of a concrete testing result cannot be affected; and the displacement mechanism and the positioning mechanism supplement each other and are used for driving the positioning mechanism to move integrally, so that the concrete is pressurized and clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, and specifically relates to a building engineering concrete anti-cracking performance testing device. BACKGROUND

[0002] Building engineering refers to the construction activities of buildings and structures by using various building materials and building technologies according to specific use functions and requirements, through scientific design, rigorous construction and effective management, and it covers the whole process from project planning, surveying and designing, construction to completion and acceptance, including the construction of various buildings such as civil residence, commercial building, industrial plant, bridge and tunnel, and building engineering not only needs to meet functionality and safety, but also needs to consider economy, environmental protection, aesthetics and coordination with the surrounding environment; concrete is a kind of widely used artificial stone, which is mainly mixed and stirred by cement, sand, stone and water in a certain proportion, after the chemical reaction of cement and water, the hydration product produced tightly bonds the aggregate such as sand and stone together, and with the gradual evaporation of water, the concrete gradually hardens, and finally forms a building material with certain strength and durability.

[0003] In combination with the concrete anti-cracking performance testing device in the prior art, it is found that the traditional concrete testing device often uses simple clamps or supporting rods to fix the concrete test piece, and this way may cause uneven stress of the test piece in the testing process, unstable clamping, and thus affect the accuracy of the test result, stress concentration phenomenon is prone to occur at the clamping part, the concrete in this area is more prone to crack, and the overall crack resistance of the concrete cannot be accurately reflected;

[0004] Therefore, the utility model designs a building engineering concrete anti-cracking performance testing device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a building engineering concrete anti-cracking performance testing device to solve the problems in the background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A construction engineering concrete anti -cracking performance testing arrangement, including test bin, the inside of test bin is provided with positioning mechanism, the left and right sides of test bin all are provided with displacement mechanism, the positioning mechanism includes first support rod, first rotation column, first turntable, first rotation rod, first push disc, first spring and first rubber pad, the right end of first support rod is installed with first rotation column, first rotation column is installed with first turntable, the rear end of first turntable is installed with first rotation rod, first rotation rod is installed with first push disc, the right end fixed mounting of first push disc has first spring, the right end of first spring is installed with first rubber pad, displacement mechanism includes support frame, pneumatic push rod, pressure sensor and push block, the left and right ends of test bin all are fixedly installed with support frame, the upper end of support frame is fixedly installed with pneumatic push rod, the transmission end of pneumatic push rod is fixedly installed with pressure sensor, the right end of pressure sensor is fixedly installed with push block.

[0007] Optionally, the positioning mechanism further comprises a second rotation rod, a second push disc, a second spring and a second rubber pad, the front end of the first turntable is provided with the second rotation rod, the second rotation rod is provided with the second push disc, the right end of the second push disc is fixedly provided with the second spring, and the right end of the second spring is fixedly provided with the second rubber pad.

[0008] Optionally, two groups of the first spring and the first rubber pad are distributed on the first push disc, and two groups of the second spring and the second rubber pad are distributed on the second push disc.

[0009] Optionally, the front of the first support rod is provided with a second support rod, the second support rod is provided with a second rotation column, and the second rotation column is provided with a second turntable.

[0010] Optionally, the rear end of the second turntable is provided with a third rotation rod, and the third rotation rod is provided with a third push disc.

[0011] Optionally, the right end of the third push disc is fixedly provided with a third spring, the right end of the third spring is fixedly provided with a third rubber pad, and two groups of the third spring and the third rubber pad are distributed on the third push disc.

[0012] Optionally, the front end of the second turntable is provided with a fourth rotation rod, the fourth rotation rod is provided with a fourth push disc, the right end of the fourth push disc is fixedly provided with a fourth spring, the right end of the fourth spring is fixedly provided with a fourth rubber pad, and two groups of the fourth spring and the fourth rubber pad are distributed on the fourth push disc.

[0013] Optionally, the displacement mechanism further comprises a first limiting plate and a support plate, the first limiting plate and the second limiting plate are fixedly installed on the outer wall of the test chamber, the first limiting plate is located above the push block, the second limiting plate is located below the push block, the support plate is fixedly installed in the middle of the test chamber, and the upper end of the support plate is fixedly installed with the hydraulic machine.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1、The utility model discloses a positioning mechanism is set up, and the positioning mechanism adopts a multi-endpoint self -adaptation clamping structure, can be various types of concrete is limited and clamped in the test area, and the multiple rubber pads in the multi -endpoint self -adaptation structure are divided and clamped and clamped concrete, under the self -adaptation adjustment effect of the rotating column and the rotating rod and the spring, multiple rubber pads can be accurately attached on the concrete, so that the concrete can be stably clamped in the specified position, and the clamping effect of the positioning mechanism is uniformly stressed, and the clamping is stable, and the accuracy of the concrete test result is not affected.

[0016] 2、The utility model discloses a displacement mechanism is set up, and the displacement mechanism is complementary with the positioning mechanism, is used for driving the overall displacement of the positioning mechanism, and the positioning mechanism is pressurized, and then guaranteeing that the positioning mechanism carries out pressurized clamping to concrete, and the pressure sensor is feedback pressure intensity, can be adjusted according to the test situation of concrete, and the support plate and the hydraulic machine are connected control terminal, control the hydraulic intensity of the hydraulic machine, and pressurize the concrete, and then the crack resistance of the concrete is tested quickly. ACCURACY

[0017] Figure 1 It is the structure schematic diagram of the utility model three -dimensional front view;

[0018] Figure 2 It is the structure schematic diagram of the utility model plane front view;

[0019] Figure 3 It is the structure schematic diagram of the utility model plane plan view;

[0020] Figure 4 It is the structure schematic diagram of the utility model three -dimensional plan view;

[0021] Figure 5 It is the structure schematic diagram of the utility model three -dimensional section; Figure 1 ;

[0022] Figure 6 It is the structure schematic diagram of the utility model three -dimensional section; Figure 2 ;

[0023] Figure 7 It is the structure schematic diagram of the utility model three -dimensional section. Figure 3 .

[0024] In the figure: 1, test bin; 2, positioning mechanism; 201, first support rod; 202, first rotating column; 203, first rotating disc; 204, first rotating rod; 205, first push disc; 206, first spring; 207, first rubber pad; 208, second rotating rod; 209, second push disc; 210, second spring; 211, second rubber pad; 212, second support rod; 213, second rotating column; 214, second rotating disc; 215, third rotating rod; 216, third push disc; 217, third spring; 218, third rubber pad; 219, fourth rotating rod; 220, fourth push disc; 221, fourth spring; 222, fourth rubber pad; 3, displacement mechanism; 301, support frame; 302, pneumatic push rod; 303, pressure sensor; 304, push block; 305, first limiting plate; 306, second limiting plate; 307, support plate; 308, hydraulic machine. DETAILED DESCRIPTION

[0025] In the description of the present application, it is understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0028] Please refer to Figures 1-7 In the embodiments of the present utility model, a building engineering concrete anti-cracking performance testing device comprises a testing bin 1, a positioning mechanism 2 is arranged in the testing bin 1, displacement mechanisms 3 are arranged on the left and right sides of the testing bin 1, the positioning mechanism 2 comprises a first supporting rod 201, a first rotating column 202, a first rotating disc 203, a first rotating rod 204, a first pushing disc 205, a first spring 206 and a first rubber pad 207, the right end of the first supporting rod 201 is provided with the first rotating column 202, the first rotating column 202 is provided with the first rotating disc 203, the rear end of the first rotating disc 203 is provided with the first rotating rod 204, the first rotating rod 204 is provided with the first pushing disc 205, the right end of the first pushing disc 205 is fixedly provided with the first spring 206, the right end of the first spring 206 is provided with the first rubber pad 207, the positioning mechanism 2 further comprises a second rotating rod 208, a second pushing disc 209, a second spring 210 and a second rubber pad 211, the front end of the first rotating disc 203 is provided with the second rotating rod 208, the second rotating rod 208 is provided with the second pushing disc 209, the right end of the second pushing disc 209 is fixedly provided with the second spring 210, the right end of the second spring 210 is fixedly provided with the second rubber pad 211, two groups of the first spring 206 and the first rubber pad 207 are distributed on the first pushing disc 205, two groups of the second spring 210 and the second rubber pad 211 are distributed on the second pushing disc 209, the front of the first supporting rod 201 is provided with a second supporting rod 212, the second supporting rod 212 is provided with a second rotating column 213, the second rotating column 213 is provided with a second rotating disc 214, the rear end of the second rotating disc 214 is provided with a third rotating rod 215, the third rotating rod 215 is provided with a third pushing disc 216, the right end of the third pushing disc 216 is fixedly provided with a third spring 217, the right end of the third spring 217 is fixedly provided with a third rubber pad 218, two groups of the third spring 217 and the third rubber pad 218 are distributed on the third pushing disc 216, the front end of the second rotating disc 214 is provided with a fourth rotating rod 219, the fourth rotating rod 219 is provided with a fourth pushing disc 220, the right end of the fourth pushing disc 220 is fixedly provided with a fourth spring 221, the right end of the fourth spring 221 is fixedly provided with a fourth rubber pad 222, two groups of the fourth spring 221 and the fourth rubber pad 222 are distributed on the fourth pushing disc 220.

[0029] Please refer to Figure 6 and 7At the beginning, the positioning mechanism 2 and the displacement mechanism 3 are complementary, when the displacement mechanism 3 is started, the positioning mechanism 2 is close to the concrete and clamps the concrete, before use, the concrete to be tested needs to be placed in the inside of the test bin 1, when the positioning mechanism 2 is driven by the displacement mechanism 3, the first rotating column 202 and the second rotating column 213 in the inside of the positioning mechanism 2 are forced to rotate, and then the components on the first rotating disc 203 and the components on the second rotating disc 214 are stably attached to the concrete, the specific situation of the components on the first rotating disc 203 is that first, two groups of first springs 206 and first rubber pads 207 and two groups of second springs 210 and second rubber pads 211 are attached to the concrete, if the side of the concrete is a plane, the first rubber pad 207 and the second rubber pad 211 accurately clamp the concrete, if the side of the concrete is irregular, the first rotating disc 203 will adaptively rotate according to the concave-convex of the side of the concrete, at the same time, the first push disc 205 also adaptively rotates according to the concave-convex of the side of the concrete, the two groups of first springs 206 and first rubber pads 207 and the two groups of second springs 210 and second rubber pads 211 can still be attached to the concrete; Similarly, the components on the second rotating disc 214 will also adaptively adjust according to the concave-convex of the side of the concrete; The positioning mechanism 2 clamps the concrete from multiple points, so that the concrete is evenly stressed, and the clamping stability of the concrete is ensured;

[0030] The positioning mechanism 2 adopts a multi-endpoint adaptive clamping structure, which can clamp various types of concrete in the test area, and multiple rubber pads in the multi-endpoint adaptive structure clamp the concrete from multiple points, and under the adaptive adjustment effect of the rotating column, the rotating rod and the spring, the multiple rubber pads can accurately attach to the concrete, so that the concrete can be stably clamped at the specified position, and the clamping effect of the positioning mechanism 2 is evenly stressed, which is stable and will not affect the accuracy of the concrete test result.

[0031] The displacement mechanism 3 comprises a support frame 301, a pneumatic push rod 302, a pressure sensor 303 and a push block 304, the left and right ends of the test bin 1 are fixedly installed with the support frame 301, the upper end of the support frame 301 is fixedly installed with the pneumatic push rod 302, the transmission end of the pneumatic push rod 302 is fixedly installed with the pressure sensor 303, and the right end of the pressure sensor 303 is fixedly installed with the push block 304, the displacement mechanism 3 further comprises a first limiting plate 305 and a supporting plate 307, the outer wall of the test bin 1 is fixedly installed with the first limiting plate 305 and the second limiting plate 306, the first limiting plate 305 is located above the push block 304, the second limiting plate 306 is located below the push block 304, and the middle of the test bin 1 is fixedly installed with the supporting plate 307, and the upper end of the supporting plate 307 is fixedly installed with a hydraulic machine 308.

[0032] Referring to Figure 5 and Figure 6, before enabling, need pre-connection of pneumatic push rod 302, pressure sensor 303 and hydraulic machine 308 and access control terminal, enable, start pneumatic push rod 302 and push block 304 and positioning mechanism 2, so that the positioning mechanism 2 on both sides of test bin 1 constantly close to concrete, and then clamp the concrete, so as to realize the effect of stable clamping concrete;Pressure sensor 303 is used for feedback pressure intensity, can avoid the case that the pressure intensity of pneumatic push rod 302 is too high or too low;When testing the crack resistance, the hydraulic machine 308 is controlled by the control terminal to test the concrete, and the concrete is tested several times, each time the control variable is different, and the test condition is recorded, and finally the test data is obtained;

[0033] Wherein, displacement mechanism 3 and positioning mechanism 2 complement each other, for driving positioning mechanism 2 whole displacement, positioning mechanism 2 is pressurized, and then the positioning mechanism 2 is pressurized and clamped to the concrete, and the pressure sensor 303 feeds back the pressure intensity, which can be adjusted according to the test condition of the concrete;And support plate 307 and hydraulic machine 308 are connected to the control terminal, the hydraulic intensity of hydraulic machine 308 is controlled, the concrete is pressurized, and the crack resistance of the concrete is quickly tested;

[0034] The working principle of the utility model is: first, the concrete test piece to be tested is placed in the test bin 1, the positioning mechanism 2 adopts a multi-endpoint self-adaptive clamping structure, which can accurately fit the multiple rubber pads on the concrete test piece through the self-adaptive adjustment effect of the rotating column, rotating rod and elastic body, so as to stably clamp the concrete, this structure can adapt to concrete test pieces of various shapes, ensure that the clamping effect is evenly stressed and stably clamped, and will not affect the accuracy of the test result;Before the test starts, pneumatic push rod 302, pressure sensor 303 and hydraulic machine 308 are all connected to the power supply and connected to the control terminal, after the test starts, pneumatic push rod 302 in displacement mechanism 3 pushes push block 304 and positioning mechanism 2, so that the positioning mechanism 2 on both sides of test bin 1 constantly close to the concrete test piece, so as to clamp the test piece, in this process, the pressure sensor 303 feedbacks the pressure intensity in real time, so as to avoid that the pressure intensity of pneumatic push rod 302 is too high or too low, displacement mechanism 3 and positioning mechanism 2 complement each other, for driving positioning mechanism 2 whole displacement, the test piece is pressurized and clamped, the feedback data of pressure sensor 303 can be adjusted according to the test condition of the concrete, so as to ensure the stability of the clamping force, at the same time, support plate 307 and hydraulic machine 308 are connected to the control terminal, the hydraulic intensity of hydraulic machine 308 is controlled, the concrete test piece is pressurized, so as to quickly test the crack resistance of the concrete, during the whole test process, positioning mechanism 2 and displacement mechanism 3 work cooperatively, which ensures the accuracy and efficiency of the concrete crack resistance test.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the crack resistance of construction concrete, comprising a test chamber (1), characterized in that: The inside of the test bin (1) is provided with a positioning mechanism (2), and the left and right sides of the test bin (1) are provided with displacement mechanisms (3); the positioning mechanism (2) comprises a first supporting rod (201), a first rotating column (202), a first rotating disc (203), a first rotating rod (204), a first pushing disc (205), a first spring (206) and a first rubber pad (207); the right end of the first supporting rod (201) is provided with the first rotating column (202); the first rotating column (202) is provided with the first rotating disc (203); the rear end of the first rotating disc (203) is provided with the first rotating rod (204); the first rotating rod (204) is provided with the first pushing disc (205); the right end of the first pushing disc (205) is fixedly provided with the first spring (206); the right end of the first spring (206) is provided with the first rubber pad (207); the displacement mechanism (3) comprises a supporting frame (301), a pneumatic push rod (302), a pressure sensor (303) and a pushing block (304); the left and right ends of the test bin (1) are fixedly provided with the supporting frame (301); the upper end of the supporting frame (301) is fixedly provided with the pneumatic push rod (302); the transmission end of the pneumatic push rod (302) is fixedly provided with the pressure sensor (303); the right end of the pressure sensor (303) is fixedly provided with the pushing block (304).

2. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 1, characterized in that: The positioning mechanism (2) further comprises a second rotating rod (208), a second pushing disc (209), a second spring (210) and a second rubber pad (211); the front end of the first rotating disc (203) is provided with the second rotating rod (208); the second rotating rod (208) is provided with the second pushing disc (209); the right end of the second pushing disc (209) is fixedly provided with the second spring (210); the right end of the second spring (210) is fixedly provided with the second rubber pad (211).

3. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 2, characterized in that: Two groups of the first spring (206) and the first rubber pad (207) are distributed on the first pushing disc (205); two groups of the second spring (210) and the second rubber pad (211) are distributed on the second pushing disc (209).

4. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 1, characterized in that: The front of the first supporting rod (201) is provided with a second supporting rod (212); the second supporting rod (212) is provided with a second rotating column (213); the second rotating column (213) is provided with a second rotating disc (214).

5. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 4, characterized in that: The rear end of the second rotating disc (214) is provided with a third rotating rod (215); the third rotating rod (215) is provided with a third pushing disc (216).

6. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 5, characterized in that: The right end of the third pushing disc (216) is fixedly provided with a third spring (217); the right end of the third spring (217) is fixedly provided with a third rubber pad (218); two groups of the third spring (217) and the third rubber pad (218) are distributed on the third pushing disc (216).

7. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 4, characterized in that: The front end of the second rotating disc (214) is provided with a fourth rotating rod (219), a fourth pushing disc (220) is installed on the fourth rotating rod (219), a fourth spring (221) is fixedly installed at the right end of the fourth pushing disc (220), a fourth rubber pad (222) is fixedly installed at the right end of the fourth spring (221), and two groups of the fourth spring (221) and the fourth rubber pad (222) are distributed on the fourth pushing disc (220).

8. The device for testing the anti-cracking performance of constructional engineering concrete according to claim 1, characterized in that: The displacement mechanism (3) further comprises a first limiting plate (305) and a supporting plate (307), the outer wall of the test chamber (1) is fixedly provided with the first limiting plate (305) and a second limiting plate (306), the first limiting plate (305) is located above the push block (304), the second limiting plate (306) is located below the push block (304), the middle part of the test chamber (1) is fixedly provided with the supporting plate (307), and the upper end of the supporting plate (307) is fixedly provided with a hydraulic machine (308).

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