A prestressed anchorage durability test device

Abstract

The utility model provides a kind of prestressed anchorage device durability test device, it is related to anchorage device durability test technical field, including testing machine, anchorage device fixed station is provided in testing machine side, the side fixed connection transverse plate of testing machine, slidingly set up test case on the transverse plate, the upper surface of test case is equipped with multiple circular through holes, and electric atomizer is mounted in circular through hole.The utility model is pushed by setting test case, far away from testing machine, expose anchorage device fixed station, anchorage device and prestressed tendon are installed in anchorage device fixed station, push test case, make circular through slot cover anchorage device fixed station, according to the characteristic of detection, select the electric atomizer below corresponding storage tank, spray corresponding spray, simulate different environment, convenient and flexible.

Description

Technical Field

[0001] This utility model belongs to the field of anchor durability testing technology, and in particular relates to a prestressed anchor durability testing device. Background Technology

[0002] Prestressed anchorages are key components in prestressed concrete structures, used to maintain the tension of prestressing tendons and transfer it to the structure. They are classified according to the anchoring method into wedge type (such as XM type anchorages), support type (such as upset head anchorages), cone plug type, and gripping type (such as extrusion anchorages and embossed anchorages). They are also classified according to the anchoring object into steel strand anchorages, steel wire bundle anchorages, and steel bar anchorages.

[0003] When anchorages undergo durability testing, mechanical performance durability testing is conducted using a testing machine, while environmental adaptability testing is conducted using simulated environmental conditions. Existing equipment cannot simultaneously perform environmental adaptability testing and mechanical performance durability testing on anchorages. Testing them separately and sequentially requires a significant amount of time, affecting testing efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a prestressed anchor durability testing device to more accurately resolve the problems described above.

[0005] This utility model is achieved through the following technical solution: This utility model proposes a prestressed anchor durability testing device, including a testing machine. An anchor fixing station is set on one side of the testing machine. A horizontal plate is fixedly connected to one side of the testing machine. A test chamber is slidably set on the horizontal plate. The upper surface of the test chamber is provided with multiple circular through holes. An electric sprayer is installed in each of the circular through holes. A storage tank is set on each of the electric sprayers. The storage tanks store salt solution, acid solution and alkaline solution respectively. A circular through groove is provided on one side of the test chamber, facing the anchor fixing station of the testing machine.

[0006] In one example, two guide rods are fixedly connected to the upper surface of the horizontal plate. The guide rods are close to both sides of the horizontal plate, and the opposite side of the guide rods has an arc surface. The guide rods are in contact with the test chamber. The horizontal plate has a square through groove, and a sliding block is slidably connected in the square through groove. The sliding block is fixedly connected to the test chamber.

[0007] In one example, a snap-fit ​​ring is fixedly connected to one side of the test chamber on the outside of the circular through groove, and two fixing rings are fixedly connected to one side of the test machine near the anchor fixing position, with the gap between the two fixing rings matching the snap-fit ​​ring.

[0008] In one example, the test chamber is connected to multiple ventilation pipes, each of which is equipped with a filter membrane. Both sides of the test chamber are connected to connecting pipes, which are used to connect a cold air blower and a warm air blower, respectively.

[0009] In one example, a mounting ring is fixedly connected to the other side of the test chamber, the mounting ring passing through the test chamber, a filter membrane is fixedly connected to the inner side of the mounting ring, a mounting plate is fixedly connected to the inner side of the mounting ring, a servo motor is fixedly connected to one side of the mounting plate, and a circulation fan is fixedly connected to the main shaft of the servo motor.

[0010] In one example, the lower side of the test chamber is connected to a discharge pipe, which passes through a sliding block.

[0011] In one example, two vertical plates are fixedly connected to the lower surface of the test chamber, and rollers are rotatably connected to one side of each vertical plate. The vertical plates are opposite to the square through slots on the horizontal plates.

[0012] The prestressed anchor durability testing device proposed in this utility model can bring the following beneficial effects: Firstly, by setting up a test chamber, before installing the anchor, push the test chamber away from the testing machine to expose the anchor fixing position. The anchor and prestressed tendon are installed in the anchor fixing position. Push the test chamber so that the circular through groove covers the anchor fixing position. According to the characteristics of the test, select the electric sprayer below the corresponding storage tank. It is convenient and flexible to use, has a small size, and reduces space occupation. Secondly, by setting up connecting pipes and circulating fans, the plug is removed only when high or low temperatures need to be simulated, or when high or low temperatures alternate, to connect the cold air fan and the warm air fan, control the temperature inside the test chamber, simulate different environments, make the device more flexible, and increase its application range. The ventilation pipe is used to balance the air pressure inside and outside the test chamber, and the servo motor drives the circulating fan to rotate in the forward and reverse directions to adjust the airflow inside the test chamber, so that the acid mist, alkali mist and salt mist inside the test chamber are distributed more evenly. Attached Figure Description

[0013] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the fixing ring of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the test chamber of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the discharge pipe of this utility model.

[0018] In the diagram: 1. Testing machine; 2. Horizontal plate; 3. Test chamber; 4. Electric sprayer; 5. Storage tank; 6. Guide rod; 7. Sliding block; 8. Snap ring; 9. Fixing ring; 10. Vent pipe; 11. Connecting pipe; 12. Mounting ring; 13. Servo motor; 14. Circulating fan; 15. Discharge pipe; 16. Vertical plate; 17. Roller. Detailed Implementation

[0019] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0020] like Figures 1-4 As shown in the figure, an embodiment of this utility model proposes a prestressed anchor durability testing device, including a testing machine 1. An anchor fixing station is provided on one side of the testing machine 1. A horizontal plate 2 is fixedly connected to one side of the testing machine 1, and a test chamber 3 is slidably mounted on the horizontal plate 2. The upper surface of the test chamber 3 has multiple circular through holes, each containing an electric sprayer 4. Each electric sprayer 4 has a storage tank 5, which stores salt solution, acidic solution, and alkaline solution respectively. A circular groove is provided on one side of the test chamber 3, facing the anchor fixing station of the testing machine 1. Both the testing machine 1 side and the anchor fixing station on this side are made of corrosion-resistant material or coated with corrosion-resistant paint. Before installing the anchor, the test chamber 3 is pushed away from the testing machine 1, exposing the anchor fixing station. The anchor and prestressed tendon are installed at the anchor fixing station. The test chamber 3 is then pushed again, causing the circular groove to cover the anchor. With a fixed workstation, the testing machine 1 then tests the anchorage, simultaneously simulating corresponding environments to test durability. For example, when simulating a seaside environment, the electric sprayer 4 below the salt solution is activated to generate salt mist into the test chamber 3 to test the corrosion effect on the anchorage. Acidic and alkaline solutions can simulate the corrosion of the anchorage by industrial acidic and alkaline waste gases. It is convenient and flexible to use, with a small size, reducing space occupation. However, after each use, it needs to be manually rinsed to reduce the solution residue in the test chamber 3 before the second simulation to reduce interference. To avoid corrosion of components during simulation, the electric sprayer 4 and storage tank 5 are made of appropriate corrosion-resistant materials. The test chamber 3 is made of quartz glass, which can resist a certain degree of corrosion and allows observation of the anchorage. Although the water mist will have some obstruction to vision, a rough inspection can still be performed.

[0021] like Figure 2As shown, two guide rods 6 are fixedly connected to the upper surface of the horizontal plate 2. The guide rods 6 are close to both sides of the horizontal plate 2, and the opposite side of the guide rods 6 has an arc surface. The guide rods 6 are in contact with the test chamber 3. The horizontal plate 2 has a square through groove, and a sliding block 7 is slidably connected in the square through groove. The sliding block 7 is fixedly connected to the test chamber 3. A snap ring 8 is fixedly connected to one side of the test chamber 3 outside the circular through groove. Two fixing rings 9 are fixedly connected to one side of the test machine 1 near the anchor fixing position. The gap between the two fixing rings 9 is matched with the snap ring 8. The sliding direction of the test chamber 3 is controlled by the guide rods 6, the square through groove and the sliding block 7, so that the circular through groove on the test chamber 3 can always face the anchor fixing position, so that the snap ring 8 on the test chamber 3 can be snapped into the fixing rings 9 for sealing and reducing leakage.

[0022] like Figure 2 and Figure 3 As shown, the test chamber 3 is connected to multiple ventilation pipes 10, each equipped with a filter membrane. Connecting pipes 11 connect to both sides of the test chamber 3, respectively connecting a cool air blower and a warm air blower. A mounting ring 12 is fixedly connected to the other side of the test chamber 3, penetrating the chamber. A filter membrane is fixedly connected to the inner side of the mounting ring 12, and a mounting plate is fixedly connected to the inner side of the mounting ring 12. A servo motor 13 is fixedly connected to one side of the mounting plate, and the spindle of the servo motor 13 is fixedly connected to a circulating fan 14. Normally, the connecting pipes 11 are plugged with corrosion-resistant plugs. However, when simulating high or low temperatures, or alternating high and low temperatures, the plugs are used. When the condition occurs, the plug is removed to connect the cold air blower and the warm air blower, controlling the temperature inside the test chamber 3 to simulate different environments, making the device more flexible and increasing its application range. The vent pipe 10 is used to balance the air pressure inside and outside the test chamber 3. The servo motor 13 drives the circulating fan 14 to rotate in the forward and reverse directions, adjusting the airflow inside the test chamber 3 to make the acid mist, alkali mist and salt mist in the test chamber 3 more evenly distributed. The filter membrane is a glass fiber membrane, which has a certain tolerance to acids, alkalis and salts. The glass fiber membrane has a large specific surface area and rich microporous structure, which can effectively adsorb and filter harmful substances in acid mist, alkali mist and salt mist.

[0023] like Figure 4 As shown, the lower side of the test chamber 3 is connected to the discharge pipe 15, which passes through the sliding block 7. During the test, the corresponding water mist falls on the bottom surface and turns into water droplets, which are discharged through the discharge pipe 15 for collection. When rinsing the test chamber 3, it is also convenient to discharge wastewater. The discharge pipe 15 is also plugged during the test.

[0024] like Figure 4 As shown, two vertical plates 16 are fixedly connected to the lower surface of the test chamber 3. Rollers 17 are rotatably connected to one side of each vertical plate 16. The vertical plates 16 are opposite to the square through slots on the horizontal plate 2. When the test chamber 3 slides, the rollers 17 roll on the ground and support the test chamber 3.

[0025] Working principle: Push the test chamber 3 away from the testing machine 1 to expose the anchor fixing position. The anchor and prestressed tendon are installed in the anchor fixing position. Push the test chamber 3 so that the circular through groove covers the anchor fixing position. The snap ring 8 snaps into the fixing ring 9. Select the corresponding simulated environment and start the corresponding electric sprayer 4 to spray the corresponding water mist into the test chamber 3. The servo motor 13 drives the circulating fan 14 to rotate in the forward and reverse directions to adjust the airflow in the test chamber 3 so that the acid mist, alkali mist or salt mist in the test chamber 3 is evenly distributed. When it is necessary to simulate high temperature or low temperature, or high temperature and low temperature alternation, the plug is removed to connect the cold air fan and the warm air fan to control the temperature in the test chamber 3 to simulate different environments. After each use, it is necessary to manually rinse the test chamber 3 to reduce the solution residue in the test chamber 3 before the second simulation.

[0026] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0027] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A prestressed anchor durability testing device, characterized in that, The test machine (1) is provided with an anchor fixing station on one side of the test machine (1). A horizontal plate (2) is fixedly connected to one side of the test machine (1). A test chamber (3) is slidably arranged on the horizontal plate (2). The upper surface of the test chamber (3) is provided with multiple circular through holes. An electric sprayer (4) is installed in each of the circular through holes. A storage tank (5) is provided on each of the electric sprayers (4). The storage tank (5) stores salt solution, acid solution and alkaline solution respectively. A circular through groove is provided on one side of the test chamber (3). The circular through groove faces the anchor fixing station of the test machine (1).

2. The prestressed anchor durability testing device according to claim 1, characterized in that, Two guide rods (6) are fixedly connected to the upper surface of the horizontal plate (2). The guide rods (6) are close to both sides of the horizontal plate (2). The opposite side of the guide rods (6) is provided with an arc surface. The guide rods (6) are in contact with the test box (3). The horizontal plate (2) is provided with a square through groove. A sliding block (7) is slidably connected in the square through groove. The sliding block (7) is fixedly connected to the test box (3).

3. The prestressed anchor durability testing device according to claim 1, characterized in that, The test chamber (3) is fixedly connected to the snap ring (8) on one side of the circular through groove, and two fixing rings (9) are fixedly connected on one side of the test machine (1) near the anchor fixing position. The gap between the two fixing rings (9) matches the snap ring (8).

4. The prestressed anchor durability testing device according to claim 1, characterized in that, The test chamber (3) is connected to multiple ventilation pipes (10), each of which is equipped with a filter membrane. Both sides of the test chamber (3) are connected to connecting pipes (11), which are used to connect the air cooler and the air heater respectively.

5. The prestressed anchor durability testing device according to claim 1, characterized in that, The other side of the test chamber (3) is fixedly connected to the mounting ring (12), which penetrates the test chamber (3). The inner side of the mounting ring (12) is fixedly connected to the filter membrane, and the inner side of the mounting ring (12) is fixedly connected to the mounting plate. One side of the mounting plate is fixedly connected to the servo motor (13), and the main shaft of the servo motor (13) is fixedly connected to the circulating fan (14).

6. The prestressed anchor durability testing device according to claim 2, characterized in that, The lower side of the test chamber (3) is connected to the discharge pipe (15), which passes through the sliding block (7).

7. The prestressed anchor durability testing device according to claim 1, characterized in that, Two vertical plates (16) are fixedly connected to the lower surface of the test chamber (3). Rollers (17) are rotatably connected to one side of each vertical plate (16). The vertical plate (16) is opposite to the square through groove on the horizontal plate (2).

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