Carbonization detection box for concrete durability detection

Abstract

The invention discloses a carbonization detection box for concrete durability detection, which comprises a box body and a storage mechanism, and the storage mechanism is arranged in the box body; the storage mechanism comprises a U-shaped storage rack, a first rotary drum, a second rotary drum and a conveying belt, the first rotary drum and the second rotary drum are rotatably arranged in the box body, the conveying belt is arranged between the first rotary drum and the second rotary drum, and the U-shaped storage rack used for placing sample bodies is fixedly arranged on the outer side of the conveying belt. And an openable sealing cover is arranged at the top end of the box body. A bracket is fixedly arranged in the box body, and the upper surface of the bracket is in sliding fit with the lower surface of the U-shaped storage rack. The carbonization detection box for concrete durability detection is simple in structure, practical in function and ingenious in design, and effectively solves the problems that carbon dioxide concentrations at different positions in a box body of existing testing equipment are different, and errors are easily caused when a plurality of sample bodies are placed at the same time for a contrast test.

Description

Technical Field

[0001] This invention relates to the field of durability testing equipment, and more particularly to a carbonation testing chamber for testing the durability of concrete. Background Technology

[0002] Concrete carbonation refers to the process by which carbon dioxide from the air diffuses into the interior of concrete and reacts chemically with calcium hydroxide to form calcium carbonate and water. Concrete carbonation is a form of chemical corrosion experienced by concrete. Carbon dioxide gas from the air permeates into the hardened concrete through its pores, reacting with the alkaline substance calcium hydroxide to form carbonates and water, thus reducing the alkalinity of the concrete. This process is called concrete carbonation, also known as neutralization. A concrete carbonation testing chamber, also called a concrete carbonation test chamber, is a laboratory device specifically designed to simulate the erosion of concrete by atmospheric carbon dioxide in real-world environments.

[0003] Patent application number 202421712031.5 discloses a carbonation testing box for testing the durability of concrete, including a main body of the testing box, and a carbonation mechanism installed inside the main body of the testing box; the main body of the testing box includes a box body; the carbonation mechanism includes a carbonation chamber located in the inner cavity of the box body, one end of the carbonation chamber is threadedly connected to a sealing cap, a first solenoid valve and a second solenoid valve are respectively connected to the surface of the carbonation chamber, the air inlet end of the second solenoid valve is connected to a manual flow regulating valve, the air inlet end of the manual flow regulating valve is connected to a carbon dioxide cylinder, and a carbon dioxide sensor is fixedly installed on the surface of the carbonation chamber.

[0004] However, in practical use, it was found that the carbon dioxide concentration was not uniform at different locations within the chamber, which could easily lead to errors when multiple samples were placed simultaneously for comparative testing. Therefore, developing a novel carbonation testing chamber for concrete durability testing has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a carbonation testing chamber for concrete durability testing, which solves the problem that the carbon dioxide concentration is not the same at different locations inside the chamber of existing testing equipment, and errors are easily caused when multiple samples are placed at the same time for comparison tests.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention discloses a carbonation testing box for concrete durability testing, comprising a box body and a storage mechanism, wherein the storage mechanism is disposed within the box body; the storage mechanism comprises a U-shaped storage rack, a first rotating drum, a second rotating drum, and a conveyor belt, wherein the first rotating drum and the second rotating drum are rotatably disposed within the box body, and a conveyor belt is disposed between the first rotating drum and the second rotating drum, wherein a U-shaped storage rack for placing the sample body is fixedly disposed on the outer side of the conveyor belt.

[0007] Furthermore, the top of the box is provided with an openable sealing cover, which is made of glass.

[0008] Furthermore, a bracket is fixedly installed inside the box, and the upper surface of the bracket slides in conjunction with the lower surface of the U-shaped storage rack.

[0009] Furthermore, a carbon dioxide cylinder is fixedly mounted on the rear end face of the housing via a fixing strap. The carbon dioxide cylinder is connected to the housing via a first pipeline, on which a first solenoid valve is mounted. A second pipeline is mounted on the housing, on which a second solenoid valve is mounted.

[0010] Furthermore, a first carbon dioxide sensor is provided at the left end of the enclosure; a second carbon dioxide sensor is provided at the right end of the enclosure.

[0011] Furthermore, the bottom of the housing is provided with support legs; the bottom of the housing is provided with a motor that cooperates with the second rotating drum; and a control box is fixedly provided at the front end of the housing.

[0012] Furthermore, a sampling mechanism is fixedly installed at the front end of the box.

[0013] Furthermore, the sampling mechanism includes a sampling box and a first electric cylinder. The first electric cylinder is fixedly installed in the middle of the box via a mounting platform. A second through hole that mates with the first electric cylinder is provided on the conveyor belt. A through opening that mates with the sampling box is provided on the box. A mounting plate is fixedly installed on the front end face of the box. A second electric cylinder is installed on the mounting plate. A first sealing gate is installed inside the sampling box. The first sealing gate is driven by the second electric cylinder.

[0014] Furthermore, a third electric cylinder is provided on the mounting plate, and a second sealing gate is provided inside the sampling box. The second sealing gate is driven by the third electric cylinder; the second sealing gate is located at the front end of the first sealing gate.

[0015] Furthermore, the front end of the U-shaped storage rack is provided with a stop bar that cooperates with the sample body; the bottom end of the U-shaped storage rack is provided with a first through hole, and the front end of the mounting platform is provided with a fourth electric cylinder that cooperates with the first through hole.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are as follows: The U-shaped storage rack of the carbonation testing chamber for concrete durability testing of this invention is set on a conveyor belt that can rotate inside the chamber, allowing the sample to rotate continuously and change its placement position, thereby compensating for the influence of differences in carbon dioxide concentration in different areas of the chamber on the experimental results. The first and second rotating cylinders of the chamber drive the conveyor belt to rotate inside the chamber, thereby agitating the carbon dioxide and making the carbon dioxide concentration more uniform. A sampling box is set at the front of the chamber, allowing partial removal of the sample during testing. The first and second sealing gates open alternately to minimize carbon dioxide leakage and reduce experimental costs. In summary, the carbonation testing chamber for concrete durability testing of this invention has a simple structure, practical function, and ingenious design, effectively solving the problem of inconsistent carbon dioxide concentrations in different locations within the chamber of existing testing equipment, which can easily lead to errors when multiple samples are placed simultaneously for control experiments. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a front view of the carbonation testing chamber for concrete durability testing according to the present invention. Figure 2 This is a top view of the carbonation testing box for concrete durability testing according to the present invention; Figure 3 for Figure 2 A sectional view; Figure 4 for Figure 1 A front view of the storage mechanism; Figure 5 Isometric drawing of a U-shaped storage rack.

[0018] Explanation of reference numerals in the attached drawings: 1. Box body; 101. Support leg; 102. Motor; 103. Control box; 104. Bracket; 2. Sampling mechanism; 201. First electric cylinder; 202. Mounting platform; 203. Mounting plate; 204. Second electric cylinder; 205. Third electric cylinder; 206. Through port; 207. Sampling box; 208. First sealing gate; 209. Second sealing gate; 3. Storage mechanism; 301. U-shaped storage rack; 302. Stop bar; 303. First through hole; 304. Fourth electric cylinder; 305. First rotating drum; 306. Second rotating drum; 307. Conveyor belt; 308. Second through hole; 4. Carbon dioxide cylinder; 401. Fixing belt; 402. First pipeline; 403. First solenoid valve; 404. Second pipeline; 405. Second solenoid valve; 5. Sample body. Detailed Implementation

[0019] like Figures 1 to 5 As shown, a carbonation testing box for concrete durability testing includes a box body 1, a storage mechanism 3, and a sampling mechanism 2. The storage mechanism 3 is disposed inside the box body 1. The sampling mechanism 2 is disposed at the front end of the box body 1. A carbon dioxide cylinder 4 is fixed to the rear end face of the box body 1 by a fixing strap 401. The carbon dioxide cylinder 4 is connected to the box body 1 through a first pipeline 402, and a first solenoid valve 403 is disposed on the first pipeline 402. A second pipeline 404 is disposed on the box body 1, and a second solenoid valve 405 is disposed on the second pipeline 404.

[0020] A first carbon dioxide sensor is installed at the left end of the box 1; a second carbon dioxide sensor is installed at the right end of the box 1.

[0021] When the carbon dioxide concentration in chamber 1 is lower than the experimental requirements, the first solenoid valve 403 is opened, and the gas in carbon dioxide cylinder 4 enters chamber 1 through the first pipeline 402; when the carbon dioxide concentration in chamber 1 is higher than the experimental requirements, the second solenoid valve 405 is opened, and the gas in chamber 1 diffuses into the air.

[0022] A control box 103 is fixedly installed at the front end of the housing 1.

[0023] The storage mechanism 3 includes a U-shaped storage rack 301, a first rotating drum 305, a second rotating drum 306, and a conveyor belt 307. The first rotating drum 305 and the second rotating drum 306 are rotatably disposed inside the housing 1. Support legs 101 are provided at the bottom end of the housing 1; a motor 102 that cooperates with the second rotating drum 306 is also provided at the bottom end of the housing 1. The motor 102 is a servo motor to facilitate precise positioning in conjunction with an encoder.

[0024] A conveyor belt 307 is provided between the first rotating drum 305 and the second rotating drum 306. Several U-shaped storage racks 301 for placing sample bodies 5 are fixedly provided on the outer side of the conveyor belt 307. A bracket 104 is fixedly provided inside the box body 1. The upper surface of the bracket 104 slides in cooperation with the lower surface of the U-shaped storage rack 301.

[0025] The bracket 104 is detachably mounted inside the housing 1 by bolts for easy replacement. The upper surface of the bracket 104 is provided with a nylon slide rail. The bracket 104 can prevent the U-shaped storage rack 301 from bending downwards and accidentally slipping under the action of the sample body 5, and can also extend the service life of the conveyor belt 307.

[0026] The U-shaped storage rack 301 of the carbonation test box for concrete durability testing of the present invention is set on a conveyor belt 307 that can rotate inside the box 1, so that the sample body 5 can rotate continuously inside the box 1 and change its placement position, thereby compensating for the influence of the difference in carbon dioxide concentration in different areas of the box 1 on the experimental results.

[0027] On the other hand, the first rotating drum 305 and the second rotating drum 306 of the carbonation test chamber for concrete durability testing of the present invention drive the conveyor belt 307 to rotate inside the chamber 1, thereby disturbing the carbon dioxide inside the chamber 1 and making the carbon dioxide concentration inside the chamber 1 more uniform.

[0028] The top of the housing 1 is equipped with an openable sealing cover made of glass. The transparent sealing cover facilitates observation of the operating positions of each U-shaped storage rack 301 inside the housing 1.

[0029] A sampling mechanism 2 is fixedly installed at the front end of the box 1.

[0030] The sampling mechanism 2 includes a sampling box 207 and a first electric cylinder 201. The first electric cylinder 201 is fixedly mounted at the middle position of the box body 1 via a mounting platform 202. A second through hole 308 that mates with the first electric cylinder 201 is provided on the conveyor belt 307. A through opening 206 that mates with the sampling box 207 is provided on the box body 1. The sample body 5 can be inserted into the sampling box 207 through the through opening 206 on the box body 1.

[0031] An installation plate 203 is fixedly installed on the front end face of the housing 1. A second electric cylinder 204 is installed on the installation plate 203. A first sealing gate 208 is installed inside the sampling box 207. The first sealing gate 208 is driven by the second electric cylinder 204.

[0032] A third electric cylinder 205 is provided on the mounting plate 203, and a second sealing gate 209 is provided inside the sampling box 207. The second sealing gate 209 is driven by the third electric cylinder 205; the second sealing gate 209 is located at the front end of the first sealing gate 208. The distance between the first sealing gate 208 and the second sealing gate 209 is sufficient to accommodate at least one sample body 5.

[0033] The front end of the U-shaped storage rack 301 is provided with a baffle 302 that cooperates with the sample body 5; the baffle 302 can prevent the sample body 5 from accidentally falling off the U-shaped storage rack 301. The bottom end of the U-shaped storage rack 301 is provided with a first through hole 303, and the front end of the mounting platform 202 is provided with a fourth electric cylinder 304 that cooperates with the first through hole 303.

[0034] The working process of this invention is as follows: First, open the sealing cover at the top of the chamber 1, place several sample bodies 5 into the corresponding U-shaped storage racks 301, and then close the sealing cover. Second, start the motor 102 via the control box 103 to make the second rotating drum 306 and the first rotating drum 305 drive the U-shaped storage racks 301 to rotate via the conveyor belt 307. Third, control the first solenoid valve 403 and the second solenoid valve 405 via the control box 103 to make the carbon dioxide concentration in the chamber 1 reach the experimental requirements. Fourth, control the sample bodies that need to be sampled in advance. The U-shaped storage rack 301 of the sample body 5 is parked at the rear end of the sampling mechanism 2; in the fifth step, the first sealing gate 208 is opened by the second electric cylinder 204, the fourth electric cylinder 304 pushes the sample body 5 upward through the first through hole 303 to pass over the baffle 302, and the first electric cylinder 201 pushes the sample body 5 forward through the second through hole 308 and enters the sampling box 207; in the sixth step, the first sealing gate 208 is closed by the second electric cylinder 204, and the second sealing gate 209 is opened by the third electric cylinder 205 to take out the sample body 5.

[0035] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A carbonation testing chamber for concrete durability testing, characterized in that: The container includes a housing (1) and a storage mechanism (3), wherein the storage mechanism (3) is disposed inside the housing (1); the storage mechanism (3) includes a U-shaped storage rack (301), a first rotating drum (305), a second rotating drum (306) and a conveyor belt (307), wherein the first rotating drum (305) and the second rotating drum (306) are rotatably disposed inside the housing (1), and a conveyor belt (307) is disposed between the first rotating drum (305) and the second rotating drum (306), wherein a U-shaped storage rack (301) for placing the sample body (5) is fixedly disposed on the outside of the conveyor belt (307).

2. The carbonation testing chamber for concrete durability testing according to claim 1, characterized in that: The top of the box (1) is provided with an openable sealing cover, which is made of glass.

3. The carbonation testing chamber for concrete durability testing according to claim 1, characterized in that: A bracket (104) is fixedly installed inside the box (1), and the upper surface of the bracket (104) slides in cooperation with the lower surface of the U-shaped storage rack (301).

4. The carbonation testing chamber for concrete durability testing according to claim 1, characterized in that: A carbon dioxide cylinder (4) is mounted on the rear end face of the box (1) via a fixing strap (401). The carbon dioxide cylinder (4) is connected to the box (1) via a first pipeline (402). A first solenoid valve (403) is mounted on the first pipeline (402). A second pipeline (404) is mounted on the box (1). A second solenoid valve (405) is mounted on the second pipeline (404).

5. The carbonation testing chamber for concrete durability testing according to claim 4, characterized in that: A first carbon dioxide sensor is provided at the left end of the box (1); a second carbon dioxide sensor is provided at the right end of the box (1).

6. The carbonation testing chamber for concrete durability testing according to claim 1, characterized in that: The bottom of the housing (1) is provided with a support leg (101); the bottom of the housing (1) is provided with a motor (102) that cooperates with the second rotating drum (306); and the front end of the housing (1) is fixedly provided with a control box (103).

7. The carbonation testing chamber for concrete durability testing according to claim 1, characterized in that: A sampling mechanism (2) is fixedly installed at the front end of the box (1).

8. The carbonation testing chamber for concrete durability testing according to claim 1, characterized in that: The sampling mechanism (2) includes a sampling box (207) and a first electric cylinder (201). The first electric cylinder (201) is fixedly installed in the middle of the box body (1) via a mounting platform (202). A second through hole (308) that cooperates with the first electric cylinder (201) is opened on the conveyor belt (307). A through opening (206) that cooperates with the sampling box (207) is opened on the box body (1). A mounting plate (203) is fixedly installed on the front end face of the box body (1). A second electric cylinder (204) is installed on the mounting plate (203). A first sealing gate (208) is installed inside the sampling box (207). The first sealing gate (208) is driven by the second electric cylinder (204).

9. The carbonation testing chamber for concrete durability testing according to claim 8, characterized in that: The mounting plate (203) is provided with a third electric cylinder (205), and the sampling box (207) is provided with a second sealing gate (209). The second sealing gate (209) is driven by the third electric cylinder (205). The second sealing gate (209) is located at the front end of the first sealing gate (208).

10. The carbonation testing chamber for concrete durability testing according to claim 8, characterized in that: The front end of the U-shaped storage rack (301) is provided with a stop bar (302) that cooperates with the sample body (5); the bottom end of the U-shaped storage rack (301) is provided with a first through hole (303), and the front end of the mounting platform (202) is provided with a fourth electric cylinder (304) that cooperates with the first through hole (303).

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