Grouting compactness quality detector capable of preventing detection dislocation

Abstract

The utility model discloses a grouting compactness quality detector capable of preventing detection dislocation, which relates to the technical field of grouting density quality, and comprises a detection head and a positioning mechanism, the outer part of the detection head is movably connected with the positioning mechanism, and the positioning mechanism comprises a fixed frame movably connected to the outer part of the detection head; one side of the fixing frame is fixedly connected with a hydraulic rod, one end of the hydraulic rod is fixedly connected with a suction cup, the fixing frame penetrates through the outside of the detection head and plays a role in fixing the detection head, four sets of hydraulic rods are evenly arranged on one side of the fixing frame, and the hydraulic rods have certain buffering force so that the suction cup can be connected with the fixing frame. Compared with an existing common grouting density quality detector, the grouting compactness quality detector capable of preventing detection dislocation has the advantages that the protection pad is made of a sponge material and plays a role in protecting the interior of the shell, and the moisture removal plate is arranged on one side of the protection pad and can adsorb internal moisture, so that the phenomena of excessive moisture in the shell and short circuit of internal wires are avoided.

Description

Technical Field

[0001] This utility model relates to the field of grout density quality technology, specifically a grout density quality tester to prevent detection misalignment. Background Technology

[0002] my country has a large number of prestressed concrete bridges, and various degrees of defects have been found during routine inspections. Existing research indicates that incomplete grouting in prestressed concrete bridge ducts, leading to weak durability and corrosion of prestressing tendons, are significant factors contributing to reduced prestress. Current technologies for detecting the density of prestressed concrete duct grout, such as radar and infrared imaging, cannot accurately detect grouting defects in prestressed concrete bridge structures. Extensive field testing has revealed that impact-echo nondestructive testing (PET) is highly effective in detecting the density of prestressed concrete duct grout.

[0003] For example, a grout density quality tester with application number CN202220040982.7 includes a dynamic analyzer, a housing, and a testing device. The housing is hollow, with one end face serving as the testing surface. The testing device includes: a hammer, housed inside the housing, with its head protruding from the testing surface and its tail inside the housing, perpendicular to the testing surface; a drive mechanism, housed inside the housing and connected to the tail of the hammer, to drive the hammer to move linearly within the housing in a direction perpendicular to the testing surface; and a testing probe, housed inside the housing with its testing end protruding from the testing surface, oriented in the same direction as the hammer, and connected to the dynamic analyzer via a data cable. It also includes an adsorption mechanism for fixing the housing to the borehole wall. However, this grout density quality tester requires holding the testing head in one hand and continuously swinging the ball with the other to generate force waves by impacting the borehole wall. Both hands need to work simultaneously, and additional personnel are required to operate the dynamic analyzer, resulting in significant labor costs. Therefore, in view of this, we have studied and improved the existing structure to prevent misalignment of the grouting density quality tester. Utility Model Content

[0004] The purpose of this invention is to provide a grout compaction quality tester that prevents mis-detection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grouting density quality tester to prevent misalignment during testing, comprising a testing head and a positioning mechanism. The positioning mechanism is movably connected to the outside of the testing head, and the positioning mechanism includes a fixed frame movably connected to the outside of the testing head. A hydraulic rod is fixedly connected to one side of the fixed frame, and a suction cup is fixedly connected to one end of the hydraulic rod.

[0006] Preferably, the hydraulic rod is provided with a striking mechanism on its inner side, and the striking mechanism includes a connecting rod fixedly connected to the inside of the hydraulic rod, a rotating ring rotatably connected to the outside of the connecting rod, and a striking ball fixedly connected to the bottom of the rotating ring.

[0007] Preferably, one end of the detection head is fixedly connected to a first tension line, and one end of the first tension line is fixedly connected to a connecting block.

[0008] Preferably, the connecting block is fixedly connected to a housing, and a second tension line is fixedly connected to one side of the housing.

[0009] Preferably, one end of the second stretching line is fixedly connected to a dynamic analyzer, and a cover plate is rotatably connected to one side of the housing.

[0010] Preferably, the cover plate has a protective pad inside and a support rod inside.

[0011] Preferably, a control switch is provided inside the housing, and a display screen is provided on one side of the control switch.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of a positioning mechanism and a striking mechanism, can prevent the detection head from becoming misaligned during testing. The positioning mechanism is adsorbed onto the outside of the hole by a suction cup on one side of the hydraulic rod. After the detection head passes through the round hole inside the fixed frame, it enters the hole for testing. Traditional detectors require holding the detection head in one hand and continuously swinging the ball with the other hand to make the ball hit the hole wall and generate force waves. Both hands need to work simultaneously, and another person is needed to operate the dynamic analyzer, resulting in high labor costs. The newly added positioning mechanism fixes the detector inside the hole wall, eliminating the need for manual operation of the detection head. The detection head can be directly measured after being placed inside the hole wall, and the measurement results are displayed on the screen. This not only fixes the position of the detection head but also improves the accuracy of the test results. The rotating ring inside the striking mechanism connects the striking ball to the hydraulic rod. Only one external force needs to be applied to the striking ball, and the rotating ring can drive the striking ball to reciprocate according to inertia, rhythmically striking the hole wall to generate force waves. This frees up the operator's hands and allows for faster and more effective hole wall testing.

[0014] 2. This utility model protects one end of the stretching wire by using a connecting block and a protective pad. Because the dynamic analyzer detects various locations and requires stretching in different directions, the interface between the stretching wire and the outer shell is also stretched for a long time, which can cause wear and tear. If it breaks, the replacement cost will be high. The connecting block has a protective rubber ring inside, which effectively protects the interface. The protective pad is made of sponge material, which protects the inside of the outer shell. A desiccant plate is set on one side of the protective pad, which can absorb internal moisture and prevent excessive moisture inside the outer shell from causing short circuits in the internal wires. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model from the front.

[0016] Figure 2 This is a three-dimensional structural diagram of the back of the main body of this utility model;

[0017] Figure 3 This is a schematic diagram of the positioning mechanism 5 and the striking mechanism 6 of this utility model;

[0018] Figure 4 This is a side view structural diagram of the present invention.

[0019] In the diagram: 1. Housing; 2. Connecting block; 3. First tension line; 4. Detection head; 5. Positioning mechanism; 501. Fixing frame; 502. Hydraulic rod; 503. Suction cup; 6. Striking mechanism; 601. Connecting rod; 602. Rotating ring; 603. Striking ball; 7. Second tension line; 8. Dynamic analyzer; 9. Cover plate; 10. Protective pad; 11. Support rod; 12. Control switch; 13. Display screen. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-2As shown, a grout compaction quality tester for preventing misalignment includes a test head 4 and a positioning mechanism 5. The positioning mechanism 5 is movably connected to the outside of the test head 4, and the positioning mechanism 5 includes a fixed frame 501 movably connected to the outside of the test head 4. A hydraulic rod 502 is fixedly connected to one side of the fixed frame 501, and a suction cup 503 is fixedly connected to one end of the hydraulic rod 502. The fixed frame 501 passes through the outside of the test head 4 and fixes the test head 4. Four sets of hydraulic rods 502 are evenly arranged on one side of the fixed frame 501. The hydraulic rods 502 have a certain buffering force, which connects the suction cup 503 to the fixed frame 501. The suction cup 503 makes the test head 4 perpendicular to the center of the hole wall to be tested.

[0022] like Figures 3-4 As shown, a striking mechanism 6 is provided on the inner side of the hydraulic rod 502, and the striking mechanism 6 includes a connecting rod 601 fixedly connected to the inner position of the hydraulic rod 502. A rotating ring 602 is rotatably connected to the outside of the connecting rod 601, and a striking ball 603 is fixedly connected to the bottom of the rotating ring 602. The connecting rod 601 is located between the left and right hydraulic rods 502, pushing the striking ball 603, so that the striking ball 603 has inertia, and the rotating ring 602 rotates repeatedly around the connecting rod 601, so that the striking ball 603 automatically strikes the hole wall.

[0023] Furthermore, one end of the detection head 4 is fixedly connected to a first tension line 3, and one end of the first tension line 3 is fixedly connected to a connecting block 2. The connecting block 2 is fixedly connected to a housing 1, and one side of the housing 1 is fixedly connected to a second tension line 7. The first tension line 3 and the second tension line 7 are symmetrical about the housing 1. The connecting block 2 protects the interface between the first tension line 3 and the housing 1 to prevent the first tension line 3 from breaking after repeated stretching.

[0024] Furthermore, a dynamic analyzer 8 is fixedly connected to one end of the second tension line 7, and a cover plate 9 is rotatably connected to one side of the housing 1. The dynamic analyzer 8 is connected to the display screen 13 inside the housing 1 through the second tension line 7. The detection result of the dynamic analyzer 8 can transmit the stress wave signal to the display screen 13.

[0025] Furthermore, a protective pad 10 is provided inside the cover plate 9, and a support rod 11 is provided inside the cover plate 9. The cover plate 9 is rotatably connected to the housing 1. A clip and a block are provided at the connection port to ensure the sealing of the inside of the housing 1. The protective pad 10 is made of sponge material, which can prevent the internal mechanism of the housing 1 from being damaged when it is moved.

[0026] Furthermore, a control switch 12 is provided inside the housing 1, and a display screen 13 is provided on one side of the control switch 12. The control switch 12 can control the power supply, and the quality of the grouting density can be judged by the data displayed on the display screen 13.

[0027] Working Principle: When using this grout density quality tester to prevent misalignment, the operator first needs to test the grout density quality of the hole. A test hole is drilled on the outer wall of the hole. The test head 4 on one side of the first tension line 3 is placed inside the fixed frame 501 inside the positioning mechanism 5. The suction cup 503 on one side of the hydraulic rod 502 is fixed to the surface of the hole wall. The test head 4 is placed inside the test hole. By shaking the rotating ring 602 outside the connecting rod 601 of the striking mechanism 6, the striking ball 603 is made to strike the hole wall regularly. The hole generates force waves due to the vibration. The cover plate 9 on one side of the support rod 11 is opened, and the control switch 12 inside the housing 1 is turned on. The dynamic analyzer 8 on one side of the second tension line 7 is held in hand to test the hole wall. The test data of the dynamic analyzer 8 can be displayed on the display screen 13 inside the housing 1. The quality of the grout density can be judged by the data. This is the working principle of the grout density quality tester to prevent misalignment.

Claims

1. A grout compaction quality testing instrument for preventing detection misalignment, comprising a testing head (4) and a positioning mechanism (5), characterized in that, The detection head (4) is externally connected to a positioning mechanism (5), and the positioning mechanism (5) includes a fixed frame (501) movably connected to the external position of the detection head (4), and a hydraulic rod (502) is fixedly connected to one side of the fixed frame (501), and a suction cup (503) is fixedly connected to one end of the hydraulic rod (502).

2. The grout compactness quality testing instrument for preventing detection misalignment according to claim 1, characterized in that, The hydraulic rod (502) is provided with a striking mechanism (6) on its inner side. The striking mechanism (6) includes a connecting rod (601) fixedly connected to the inner position of the hydraulic rod (502). A rotating ring (602) is rotatably connected to the outside of the connecting rod (601), and a striking ball (603) is fixedly connected to the bottom of the rotating ring (602).

3. The grout compactness quality testing instrument for preventing detection misalignment according to claim 1, characterized in that, One end of the detection head (4) is fixedly connected to a first tension line (3), and one end of the first tension line (3) is fixedly connected to a connecting block (2).

4. A grout compaction quality testing instrument for preventing detection misalignment according to claim 3, characterized in that, The connecting block (2) is fixedly connected to the housing (1) at one time, and a second tension line (7) is fixedly connected to one side of the housing (1).

5. A grout compaction quality testing instrument for preventing detection misalignment according to claim 4, characterized in that, One end of the second stretching line (7) is fixedly connected to a dynamic analyzer (8), and a cover plate (9) is rotatably connected to one side of the housing (1).

6. A grout compaction quality testing instrument for preventing detection misalignment according to claim 5, characterized in that, The cover plate (9) is provided with a protective pad (10) inside, and a support rod (11) is provided inside the cover plate (9).

7. A grout compaction quality testing instrument for preventing detection misalignment according to claim 6, characterized in that, The housing (1) is equipped with a control switch (12) inside, and a display screen (13) is provided on one side of the control switch (12).

Images