Concrete deterioration test device

Abstract

According to the concrete degradation test device provided by the invention, a control panel is matched with a temperature control mechanism, a ventilation mechanism and a water supply pipe with a plurality of nozzles to simulate the temperature, ventilation conditions, rain wash and other environments of a concrete test block, and a driving mechanism drives a mounting cylinder to rotate at a drainage groove; the pump body drives the multiple cavities of the mounting cylinder to be in a negative pressure state through the suction pipe and the multiple branch pipes, the multiple cavities extract water in the test box through the mounting cylinder, under the negative pressure effect of the cavities, impurities in the water are adsorbed to the outer side of the mounting cylinder, and when the impurities rotate to the back face of the test box along with the mounting cylinder, the impurities are separated from the test box. The adjusting mechanism drives the adjusting block to be close to and block the branch pipe at the position, the adsorption effect on sundries is relieved, the sundries at the filter holes are cleaned in cooperation with the cleaning structure, the sundries at the installation cylinder and the drainage groove can be effectively removed, automatic cleaning of the sundries is achieved, the labor cost is saved, and normal proceeding of water recovery work and whole test work is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of concrete degradation research, and in particular to a concrete degradation testing device. Background Art

[0002] Concrete surface defects are common problems in the engineering field, including exposed reinforcement, honeycombs, holes, slag inclusions, looseness, cracks, etc. These defects not only affect the appearance, but more seriously, they may reduce the structural performance and durability of concrete, posing a threat to engineering safety. Therefore, it is of great significance to deeply study the causes and prevention of concrete surface defects. The causes of concrete surface defects are complex and diverse, involving multiple aspects such as materials, construction, and environment. Material factors include the mix ratio of concrete, the properties of aggregates, and the quality of cement; construction factors involve the mixing, transportation, pouring, vibration, and maintenance of concrete; environmental factors include external conditions such as temperature, humidity, and wind speed. Studying how these factors work together to cause defects is the key to preventing and controlling defects. Measures to prevent concrete surface defects must be implemented throughout the entire construction process. For example, optimizing the concrete mix ratio, selecting appropriate aggregates, and ensuring cement quality are the basis; during the construction process, strictly controlling the mixing and transportation of concrete, reasonably arranging the pouring sequence, ensuring sufficient vibration, and avoiding missed vibration are the keys; finally, scientifically curing concrete, maintaining appropriate temperature and humidity, and avoiding premature demolding or freezing are also indispensable steps. The purpose of studying the causes and prevention of concrete surface defects is to improve the quality and safety of concrete engineering by deeply understanding the key factors affecting the generation of defects and proposing effective prevention and control strategies. This research not only has direct guiding significance for engineering practice, but also can promote the development of relevant theories and contribute to the progress of concrete material science. The mechanism and law of marine concrete material degradation are key scientific issues in the performance assurance research of reinforced concrete, cross-sea bridges and other infrastructure and major marine structures. However, there is still no equipment that can comprehensively simulate the service environment of concrete. The existing equipment cannot simulate the impact of various environments on the degradation of concrete. In addition, when the existing equipment simulates the flushing of concrete by saline water bodies such as rainwater and seawater, it is usually necessary to filter the flushed water and recycle it. However, there are many impurities in the flushed water, which are easy to adhere to the installation cylinder. Long-term use will block the installation cylinder, affecting the filtration performance of the installation cylinder and the normal recovery of the water body. It is usually necessary to stop the machine for manual cleaning. The whole cleaning process is inconvenient and delays the test process. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the above-mentioned technologies and to propose a concrete degradation test device to solve the above-mentioned problems.

[0004] The present invention provides a concrete degradation test device, comprising:

[0005] A test box, wherein the test box is provided with a control panel, a temperature control mechanism, a ventilation mechanism, a water supply pipe and a drainage trough, wherein a plurality of concrete test blocks are placed in the test box, and a plurality of nozzles for spraying water to flush the concrete test blocks are provided on the water supply pipe;

[0006] A mounting cylinder is rotatably provided at the drainage groove, a driving mechanism for driving the mounting cylinder to rotate is provided on the test box, a plurality of filter holes are provided on the outer circumference of the mounting cylinder, a plurality of partitions are circumferentially provided at the inner cavity of the mounting cylinder, and the plurality of partitions divide the inner cavity of the mounting cylinder into a plurality of chambers, a mounting plate is provided on the side of the mounting cylinder, a plurality of branch pipes are provided on the mounting plate, and the plurality of branch pipes are aligned one by one with the plurality of chambers and are connected to each other, a connecting pipe connected to the plurality of branch pipes is provided on the mounting plate, a suction pipe is rotatably provided on the connecting pipe, a pump body is provided on the suction pipe, a plurality of adjustment blocks are movably provided on the mounting plate, the adjustment blocks are located at the branch pipes and are used to adjust the connectivity of the branch pipes, an elastic member is provided at the adjustment block, and the elastic member is used to drive the adjustment block away from the branch pipe;

[0007] An adjusting mechanism, the adjusting mechanism is used to drive the adjusting block that rotates with the mounting tube to the back of the test box to approach and block the branch pipe;

[0008] A cleaning mechanism is arranged at the back of the test box and is used to clean the outside of the installation tube.

[0009] Preferably, the elastic member is a tension spring, which is connected to the adjusting block and is used to drive the adjusting block away from the branch pipe.

[0010] Preferably, the adjustment mechanism includes a circular frame and an arc-shaped plate, an adjustment rod is provided on each adjustment block, the circular frame is coaxially arranged with the mounting tube, the elastic member drives the adjustment block to elastically abut against the circular frame or the arc-shaped plate, the arc-shaped plate is arranged on the inner side of the circular frame and close to the back side of the test box, and the arc-shaped plate is used to cooperate with the rotation process of the mounting tube to push the adjustment rod to drive the adjustment block to block the branch pipe.

[0011] Preferably, transition slopes for the adjusting rod to abut against are provided on both sides of the arc plate, and an arc-shaped slideway for the adjusting rod to abut against is provided on the arc plate, the transition slope is used to cooperate with the elastic member to drive the adjusting rod to drive the adjusting block to approach or move away from the branch pipe, and the arc-shaped slideway is used to maintain the state of the adjusting block blocking the branch pipe.

[0012] Preferably, the height of the mounting tube is greater than the height of the drainage groove.

[0013] Preferably, the driving mechanism is a servo motor, which is transmission-connected to the mounting cylinder and is used to drive the mounting cylinder to rotate.

[0014] Preferably, the temperature control mechanism comprises an electric heating tube and a temperature sensor, and the control panel is electrically connected to the temperature sensor and the electric heating tube respectively.

[0015] Preferably, the ventilation mechanism is an electric fan, and the electric fan is electrically connected to the control panel.

[0016] Preferably, the cleaning mechanism comprises a collecting box, a scraper and a torsion spring, the collecting box is arranged at the back of the test box, the scraper is rotatably mounted on the collecting box, and the torsion spring is mounted on the scraper and is used to drive one end of the scraper to elastically abut against the mounting tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The temperature, ventilation conditions and rainwater scouring of the concrete test block can be simulated by the control panel in coordination with the temperature control mechanism, the ventilation mechanism and the water supply pipe with several nozzles. The installation cylinder is driven to rotate at the drainage trough by the driving mechanism. The pump body drives several chambers of the installation cylinder to be in a negative pressure state through the suction pipe and several branch pipes. Several chambers draw water from the test box through the installation cylinder. Under the action of the negative pressure in the chamber, the debris in the water is adsorbed on the outside of the installation cylinder. When the debris rotates to the back of the test box with the installation cylinder, the adjustment mechanism drives the adjustment block to approach and block the branch pipe there, thereby releasing the adsorption effect on the debris. The cleaning structure is cooperated to clean the debris at the filter hole, which can effectively remove the debris at the installation cylinder and the drainage trough, realize automatic cleaning of the debris, save labor costs, and ensure the normal progress of water recovery and the entire test work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of the external structure of an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the internal structure of an embodiment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a cleaning mechanism in a certain embodiment of the present invention;

[0023] Figure 4 It is a structural schematic diagram of a driving mechanism in a certain embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the branch pipe, the connecting pipe and the suction pipe in a certain embodiment of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the adjusting mechanism in a certain embodiment of the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0027] In the figure, 1-test box; 11-control panel; 12-temperature control mechanism; 121-electric heating tube; 122-temperature sensor; 13-ventilation mechanism; 14-water supply pipe; 15-drainage trough; 2-installation cylinder; 21-filter hole; 22-partition; 23-chamber; 3-driving mechanism; 4-installation plate; 41-branch pipe; 42-connecting pipe; 5-adjusting block; 51-adjusting rod; 6-elastic member; 7-adjusting mechanism; 71-circular frame; 72-arc plate; 721-transition landslide; 722-arc slide; 8-cleaning mechanism; 81-collection box; 82-scraper; 83-torsion spring; 9-suction pipe; 91-pump body. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] Reference Figures 1 to 7 The present invention provides a concrete degradation test device

[0031] A test box 1, on which a control panel 11, a temperature control mechanism 12, a ventilation mechanism 13, a water supply pipe 14 and a drainage trough 15 are arranged, a plurality of concrete test blocks are placed in the test box 1, and a plurality of nozzles for spraying water to flush the concrete test blocks are arranged on the water supply pipe 14;

[0032] A mounting cylinder 2 is rotatably provided at the drainage groove 15, a driving mechanism 3 for driving the mounting cylinder 2 to rotate is provided on the test box 1, a plurality of filter holes 21 are provided on the outer periphery of the mounting cylinder 2, a plurality of partitions 22 are circumferentially provided on the inner cavity of the mounting cylinder 2, and the plurality of partitions 22 divide the inner cavity of the mounting cylinder 2 into a plurality of chambers 23, a mounting plate 4 is provided on the side of the mounting cylinder 2, a plurality of branch pipes 41 are provided on the mounting plate 4, the plurality of branch pipes 41 are aligned one by one with the plurality of chambers 23 and are connected to each other, a connecting pipe 42 connected to the plurality of branch pipes 41 is provided on the mounting plate 4, a suction pipe 9 is rotatably provided on the connecting pipe 42, a pump body 91 is provided on the suction pipe 9, a plurality of adjusting blocks 5 are movably provided on the mounting plate 4, the adjusting block 5 is located at the branch pipe 41 and is used to adjust the connectivity of the branch pipe 41, an elastic member 6 is provided at the adjusting block 5, and the elastic member 6 is used to drive the adjusting block 5 away from the branch pipe 41;

[0033] The adjusting mechanism 7 is used to drive the adjusting block 5 that rotates with the mounting tube 2 to the back of the test box 1 to approach and block the branch pipe 41;

[0034] The cleaning mechanism 8 is arranged at the back of the test box 1 and is used to clean the outside of the installation tube 2.

[0035] The control panel 11 cooperates with the temperature control mechanism 12, the ventilation mechanism 13, and the water supply pipe 14 with several nozzles to realize the temperature, ventilation conditions and rainwater scouring of the concrete test block. The driving mechanism 3 drives the installation cylinder 2 to rotate at the drainage groove 15. The pump body 91 drives the several chambers 23 of the installation cylinder 2 to be in a negative pressure state through the suction pipe 9 and several branch pipes 41. The several chambers 23 extract water from the test box 1 through the installation cylinder 2. Under the negative pressure of the chamber 23, the debris in the water is adsorbed on the outside of the installation cylinder 2. When the debris rotates to the back of the test box 1 with the installation cylinder 2, the adjustment mechanism 7 drives the adjustment block 5 to approach and block the branch pipe 41 there, releases the adsorption effect on the debris, and cooperates with the cleaning structure to clean the debris at the filter hole 21, which can effectively remove the debris at the installation cylinder 2 and the drainage groove 15, realize automatic cleaning of the debris, save labor costs, and ensure the normal progress of water recovery work and the entire test work. The water supply pipe 14 provides power through a water pump, and the control panel 11 is electrically connected to the temperature control mechanism 12 , the ventilation mechanism 13 and the driving mechanism 3 respectively.

[0036] Embodiment 2:

[0037] Reference Figures 1 to 7 Combined with the technical solution of Example 1, in this embodiment, the elastic member 6 is a tension spring, which is connected to the adjustment block 5 and is used to drive the adjustment block 5 away from the branch pipe 41.

[0038] Specifically, the adjustment mechanism 7 includes a circular frame 71 and an arc-shaped plate 72. An adjustment rod 51 is provided on each adjustment block 5. The circular frame 71 is coaxially arranged with the mounting tube 2. The elastic member 6 drives the adjustment block 5 to elastically abut against the circular frame 71 or the arc-shaped plate 72. The arc-shaped plate 72 is arranged on the inner side of the circular frame 71 and close to the back side of the test box 1. The arc-shaped plate 72 is used to cooperate with the rotation process of the mounting tube 2 to push the adjustment rod 51 to drive the adjustment block 5 to block the branch pipe 41.

[0039] Specifically, transition slopes 721 for the adjusting rod 51 to abut are provided on both sides of the arc plate 72, and an arc slideway 722 for the adjusting rod 51 to abut is provided on the arc plate 72. The transition slope 721 is used to cooperate with the elastic member 6 to drive the adjusting rod 51 to drive the adjusting block 5 to approach or move away from the branch pipe 41, and the arc slideway 722 is used to maintain the state of the adjusting block 5 blocking the branch pipe 41.

[0040] Working principle:

[0041] When the installation cylinder 2 drives the debris to rotate to the back of the test box 1 and continues to rotate, the adjustment rod 51 moves from the inner side of the round frame 71 through the transition slope 721 to the arc slide 722, and the adjustment rod 51 drives the adjustment block 5 to approach the branch pipe 41. When the adjustment rod 51 moves to the arc slide 722 and continues to move along the arc slide 722, the adjustment rod 51 does not move relative to the installation plate 4, that is, the adjustment block 5 keeps blocking the branch pipe 41, and the chamber 23 corresponding to the blocked branch pipe 41 is released from the negative pressure state, and the debris there is not adsorbed and cooperates with the cleaning mechanism 8 to separate from the installation cylinder 2, so that the debris cleaning work is completed. After the debris is cleaned, the installation cylinder 2 continues to drive the chamber 23 to move. During the rotation of the regulating rod 51 from the arc slide 722 to the drain groove 15 via the transition slope 721 to the inner side of the circular frame 71, the regulating rod 51 is acted upon by the elastic force of the elastic member 6 to drive the regulating block 5 away from the branch pipe 41, thereby releasing the blocking state of the branch pipe 41. The chamber 23 is in a negative pressure state due to the suction action of the pump body 91, so that the chamber 23 can normally perform the water pumping and recovery work when it rotates to the drain groove 15, that is, the driving mechanism 3, the mounting tube 2, the elastic member 6, the regulating mechanism 7, the plurality of branch pipes 41 and the pump body 91 are linked to cooperate to adjust the negative pressure state of each chamber 23 of the mounting tube 2 to realize the water pumping and automatic cleaning of the mounting tube 2.

[0042] Specifically, the height of the installation cylinder 2 is greater than the height of the drainage groove 15. Since the height of the installation cylinder 2 is greater than the height of the drainage groove 15, after any chamber 23 on the installation cylinder 2 is pumped out at the drainage groove 15, the chamber 23 will no longer pump out water at the drainage groove 15 as the installation cylinder 2 rotates upward and leaves the water surface at the drainage groove 15. The pump body 91 cooperates with the suction pipe 9 to drain the water in the chamber 23, and then the chamber 23 moves to the back of the test box 1 to cooperate with the cleaning mechanism 8 and the regulating mechanism 7 to clean impurities, which can reduce the outflow of water from the chamber 23 during the cleaning process and improve the recycling and filtration of the water.

[0043] Embodiment 3:

[0044] Reference Figures 1 to 7 Combining the technical solutions of Example 1 and Example 2, in this embodiment, the driving mechanism 3 is a servo motor, which is transmission-connected to the mounting tube 2 and is used to drive the mounting tube 2 to rotate.

[0045] Specifically, the temperature control mechanism 12 includes an electric heating tube 121 and a temperature sensor 122 , and the control panel 11 is electrically connected to the temperature sensor 122 and the electric heating tube 121 , respectively.

[0046] Specifically, the ventilation mechanism 13 is an electric fan, and the electric fan is electrically connected to the control panel 11 .

[0047] Specifically, the cleaning mechanism 8 includes a collecting box 81, a scraper 82 and a torsion spring 83. The collecting box 81 is arranged on the back of the test box 1, the scraper 82 is rotatably mounted on the collecting box 81, and the torsion spring 83 is installed on the scraper 82 and is used to drive one end of the scraper 82 to elastically abut against the mounting tube 2.

[0048] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A concrete degradation test device, characterized in that: include: A test box, wherein the test box is provided with a control panel, a temperature control mechanism, a ventilation mechanism, a water supply pipe and a drainage trough, wherein a plurality of concrete test blocks are placed in the test box, and a plurality of nozzles for spraying water to flush the concrete test blocks are provided on the water supply pipe; A mounting cylinder is rotatably provided at the drainage groove, a driving mechanism for driving the mounting cylinder to rotate is provided on the test box, a plurality of filter holes are provided on the outer circumference of the mounting cylinder, a plurality of partitions are circumferentially provided at the inner cavity of the mounting cylinder, and the plurality of partitions divide the inner cavity of the mounting cylinder into a plurality of chambers, a mounting plate is provided on the side of the mounting cylinder, a plurality of branch pipes are provided on the mounting plate, and the plurality of branch pipes are aligned one by one with the plurality of chambers and are connected to each other, a connecting pipe connected to the plurality of branch pipes is provided on the mounting plate, a suction pipe is rotatably provided on the connecting pipe, a pump body is provided on the suction pipe, a plurality of adjustment blocks are movably provided on the mounting plate, the adjustment blocks are located at the branch pipes and are used to adjust the connectivity of the branch pipes, an elastic member is provided at the adjustment block, and the elastic member is used to drive the adjustment block away from the branch pipe; An adjusting mechanism, the adjusting mechanism is used to drive the adjusting block that rotates with the mounting tube to the back of the test box to approach and block the branch pipe; A cleaning mechanism is arranged at the back of the test box and is used to clean the outside of the installation tube.

2. A concrete degradation testing device according to claim 1, characterized in that: The elastic member is a tension spring, which is connected to the adjusting block and is used to drive the adjusting block away from the branch pipe.

3. A concrete degradation testing device according to claim 1, characterized in that: The adjustment mechanism includes a circular frame and an arc-shaped plate, and an adjustment rod is provided on each of the adjustment blocks. The circular frame is coaxially arranged with the mounting tube, and the elastic member drives the adjustment block to elastically abut against the circular frame or the arc-shaped plate. The arc-shaped plate is arranged on the inner side of the circular frame and close to the back side of the test box. The arc-shaped plate is used to cooperate with the rotation process of the mounting tube to push the adjustment rod to drive the adjustment block to block the branch pipe.

4. A concrete degradation testing device according to claim 3, characterized in that: Transition slopes for the adjusting rod to abut against are arranged on both sides of the arc plate, and an arc-shaped slideway for the adjusting rod to abut against is arranged on the arc plate. The transition slope is used to cooperate with the elastic member to drive the adjusting rod to drive the adjusting block to approach or move away from the branch pipe, and the arc-shaped slideway is used to keep the adjusting block in a state of blocking the branch pipe.

5. A concrete degradation testing device according to claim 3, characterized in that: The height of the installation tube is greater than the height of the drainage groove.

6. A concrete degradation testing device according to claim 1, characterized in that: The driving mechanism is a servo motor, which is transmission-connected to the mounting cylinder and is used to drive the mounting cylinder to rotate.

7. A concrete degradation testing device according to claim 1, characterized in that: The temperature control mechanism comprises an electric heating tube and a temperature sensor, and the control panel is electrically connected to the temperature sensor and the electric heating tube respectively.

8. A concrete degradation testing device according to claim 1, characterized in that: The ventilation mechanism is an electric fan, and the electric fan is electrically connected to the control panel.

9. A concrete degradation testing device according to claim 1, characterized in that: The cleaning mechanism includes a collection box, a scraper and a torsion spring. The collection box is arranged at the back of the test box. The scraper is rotatably mounted on the collection box. The torsion spring is mounted on the scraper and is used to drive one end of the scraper to elastically abut against the mounting tube.

Images