Waveguide rod device of acoustic emission detection probe

Abstract

The waveguide rod device of the acoustic emission detection probe comprises a base and a vertical rod installed at the top end of the base, a clamping block is installed at one end of the surface of the vertical rod in a sliding mode, and a transverse rod is installed in the clamping block in a penetrating mode. A transverse locking bolt and a longitudinal locking bolt which are used for tensioning the clamping block and the vertical rod and tensioning the clamping block and the transverse rod are installed on the outer wall of one side of the clamping block and the bottom end of the clamping block respectively, an I-shaped plate is fixed to one end of the transverse rod, and a double-station angle adjusting structure is arranged on the outer wall of the side, away from the transverse rod, of the I-shaped plate. According to the utility model, the waveguide rod can be stably fixed at a preset position after being mounted and is not influenced by external vibration or environmental change, and in acoustic emission detection, the levelness adjustment of the waveguide rod is crucial, so that the waveguide rod is ensured to be at the horizontal position, and the waveguide rod is ensured to be in optimal contact with the surface of a structure; the waveguide rod can accurately and easily receive and transmit acoustic emission signals in the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of waveguide rods, and specifically relates to a waveguide rod device for an acoustic emission detection probe. Background Technique

[0002] The waveguide rod acoustic emission detection sensor is a key device specifically used for structural health monitoring. Its structure and working principle are designed precisely, providing an important non-destructive detection means for the engineering field. This sensor mainly consists of a waveguide rod, a sensor element, and a connection control unit. The waveguide rod is its core component, usually made of metal or alloy. The hollow design inside is conducive to the transmission of acoustic wave signals and protects the internal sensor element from external interference. The sensor element is installed inside the waveguide rod and is responsible for receiving the acoustic emission signals generated by micro-cracks, displacements, or deformations inside the structure, and converting them into electrical signals for subsequent processing and analysis. The connection and control unit is responsible for transmitting the collected data to the data processing device for engineers to conduct further structural health status evaluation and analysis. When selecting the installation position of the waveguide rod, it is necessary to ensure that it can cover the key parts of the structure or areas where problems may exist. Generally, it is recommended to install the sensor within twice the distance around the known defects to ensure that the acoustic emission signals of the problems can be captured. When installing the waveguide rod, it is necessary to ensure that its probe end does not contact other structures or objects. Contact may cause noise or other interferences, affecting the normal operation of the sensor and the data accuracy. At the current stage, when installing the waveguide rod, a bracket with a certain height is generally used to suspend and support the waveguide rod. This results in the difficulty of adjusting the action angle, action orientation, and height position of the waveguide rod after installation. Different parts of the structure may have different stress concentrations or damage positions, and it is difficult to effectively capture all important acoustic emission signals at a fixed angle. Moreover, if the installation angle of the waveguide rod does not match the direction of the actual acoustic emission source, it will also lead to incomplete signal reception or increased noise, thus affecting the accuracy and reliability of the monitoring data. Content of the Utility Model

[0003] The purpose of the utility model is to provide a waveguide rod device for an acoustic emission detection probe. The clamping block is movably installed on the vertical rod, and the height and orientation of the clamping block on the vertical rod are controlled by a transverse locking bolt, thereby indirectly controlling the height and orientation of the double-station angle adjustment structure, the positioning structure, and the waveguide rod body. The double-station angle adjustment structure adjusts the levelness of the waveguide rod body to solve the problems raised in the above background technique.

[0004] To achieve the above object, the present utility model provides the following technical solutions: A waveguide rod device of an acoustic emission detection probe, including a base and a vertical rod installed at the top of the base. One end of the surface of the vertical rod is slidably installed with a clamping block, and a cross bar is installed through the inside of the clamping block. A transverse locking bolt and a longitudinal locking bolt for tightening the clamping block, the vertical rod, and the clamping block and the cross bar are respectively installed on one outer wall side and the bottom end of the clamping block. One end of the cross bar is fixed with an I-shaped plate, and a double-station angle adjustment structure is arranged on the outer wall side of the I-shaped plate away from the cross bar. A positioning structure is installed at the movable end of the double-station angle adjustment structure, and a waveguide rod body is installed inside the positioning structure.

[0005] Preferably, a longitudinal cutting groove is provided on the back surface of the clamping block, and the threaded end of the transverse locking bolt penetrates to the outside of the longitudinal cutting groove.

[0006] Preferably, a transverse cutting groove is provided on the surface of the clamping block, and the threaded end of the longitudinal locking bolt penetrates to the outside of the transverse cutting groove.

[0007] Preferably, the double-station angle adjustment structure includes two symmetric convex parts installed on one outer wall side of the I-shaped plate. A column is fixed between the two convex parts. Support shafts are fixed on the front and rear outer walls of the column. A triangular crank arm is sleeved on the surface of the support shaft. A right-angle long support plate is fixed on the outer wall side of the triangular crank arm away from the I-shaped plate. A main positioning bolt is installed at the top end of the triangular crank arm, and the threaded end of the main positioning bolt abuts against the outer wall of the support shaft.

[0008] Preferably, both the vertical rod and the cross bar are made of hard plastic components.

[0009] Preferably, the positioning structure includes a convex-character hollow seat with a through hole fixed on one outer wall side of the right-angle long support plate. A second positioning bolt is installed on one outer wall side of the convex-character hollow seat, and the threaded end of the second positioning bolt extends into the convex-character hollow seat.

[0010] Compared with the prior art, the beneficial effects of the present utility model are: The waveguide rod device of the acoustic emission detection probe is movably installed on the vertical rod through the clamping block and is angle-fixed by components such as a transverse locking bolt and a longitudinal locking bolt, which can achieve precise control of the installation height and orientation of the waveguide rod, ensure that the waveguide rod can be firmly fixed at a predetermined position after installation, and is not affected by external vibrations or environmental changes. Moreover, in acoustic emission detection, the horizontal adjustment of the waveguide rod is crucial. Ensure it is in a horizontal position and ensure its best contact with the structure surface, so that the waveguide rod can accurately and easily receive and transmit the acoustic emission signals inside the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view structural schematic diagram of the present utility model;

[0012] Figure 2 is a schematic side view structure of the present utility model;

[0013] Figure 3 is a schematic three - dimensional structure of the present utility model Figure 1 ;

[0014] Figure 4 is a schematic three - dimensional structure of the present utility model Figure 2 ;

[0015] Figure 5 is a schematic three - dimensional structure of the present utility model Figure 3 .

[0016] In the figure: 1, base; 2, vertical rod; 3, clamping block; 301, longitudinal cutting groove; 302, transverse cutting groove; 303, longitudinal locking bolt; 4, transverse locking bolt; 5, cross bar; 6, I - shaped plate; 7, double - station angle adjustment structure; 701, convex part; 702, column; 703, support shaft; 704, triangular crank arm; 705, main positioning bolt; 706, right - angled long support plate; 8, positioning structure; 801, convex - character hollow seat; 802, positioning bolt two; 9, waveguide rod body. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0018] Please refer to Figures 1-5 , an embodiment provided by the present utility model: A waveguide rod device of an acoustic emission detection probe includes a base 1 and a vertical rod 2 installed at the top end of the base 1. One end of the surface of the vertical rod 2 is slidably installed with a clamping block 3, and a cross bar 5 is installed through the inside of the clamping block 3. On one side outer wall and the bottom end of the clamping block 3, there are respectively installed a transverse locking bolt 4 and a longitudinal locking bolt 303 for tightening the clamping block 3, the vertical rod 2, and tightening the clamping block 3, the cross bar 5. The vertical rod 2 and the cross bar 5 are made of hard plastic components;

[0019] One end of the cross bar 5 is fixed with an I - shaped plate 6, and on the outer wall of the I - shaped plate 6 away from the cross bar 5, there is a double - station angle adjustment structure 7, and a positioning structure 8 is installed at the movable end of the double - station angle adjustment structure 7, and a waveguide rod body 9 is installed inside the positioning structure 8;

[0020] On the back of the clamping block 3, a longitudinal cutting groove 301 is provided. The threaded end of the transverse locking bolt 4 penetrates to the outside of the longitudinal cutting groove 301. On the surface of the clamping block 3, a transverse cutting groove 302 is provided. The threaded end of the longitudinal locking bolt 303 penetrates to the outside of the transverse cutting groove 302. When adjusting the height, orientation of the clamping block 3, and the angles of the cross bar 5 and the I-shaped plate 6, rapid adjustment is achieved through the cooperation of the transverse locking bolt 4, the longitudinal cutting groove 301, the longitudinal locking bolt 303, and the transverse cutting groove 302. It does not rely on complex tools or additional support structures, reducing the possibility of errors during the installation and debugging of the waveguide rod body 9 and ensuring that the waveguide rod body 9 can be put into use at the work site as soon as possible;

[0021] The double-station angle adjustment structure 7 includes two symmetric protruding parts 701 installed on the outer wall of one side of the I-shaped plate 6. A column 702 is fixed between the two protruding parts 701. Support shafts 703 are fixed on the front and rear outer walls of the column 702. A triangular crank arm 704 is sleeved on the surface of the support shaft 703. And on the outer wall of the side of the triangular crank arm 704 away from the I-shaped plate 6, a right-angle long support plate 706 is fixed. A main positioning bolt 705 is installed at the top of the triangular crank arm 704, and the threaded end of the main positioning bolt 705 abuts against the outer wall of the support shaft 703;

[0022] The staff can release the abutting restriction of the main positioning bolt 705 on the support shaft 703 and the triangular crank arm 704, so that the triangular crank arm 704 can drive structures such as the right-angle long support plate 706 and the positioning structure 8 to swing around the support shaft 703 as the axis until the waveguide rod body 9 swings to a suitable use posture. Subsequently, the staff rotates the main positioning bolt 705 downward, and uses the main positioning bolt 705 to fasten the triangular crank arm 704 and the support shaft 703, so as to maintain the working angles of components such as the right-angle long support plate 706, the positioning structure 8, and the waveguide rod body 9. Through precise installation and adjustment, it can be ensured that the waveguide rod maintains a stable working state during long-term use and will not affect the monitoring effect due to loosening or position deviation;

[0023] The positioning structure 8 includes a convex-character hollow seat 801 with a through hole fixed on the outer wall of one side of the right-angle long support plate 706. And on the outer wall of one side of the convex-character hollow seat 801, a second positioning bolt 802 is installed. The threaded end of the second positioning bolt 802 extends into the convex-character hollow seat 801. The end of the waveguide rod body 9 is inserted into the through hole of the convex-character hollow seat 801. Subsequently, the staff continuously screws the second positioning bolt 802 to abut the non-detection end of the waveguide rod body 9 against the convex-character hollow seat 801 with the second positioning bolt 802 to ensure the stable installation of the positioning structure 8.

[0024] When the embodiment of the present application is in use, the staff first takes out one or two waveguide rod bodies 9 to be used, so that one end of the waveguide rod body 9 with the signal cable is installed in the positioning structure 8, and the positioning structure 8 fixes the end of the waveguide rod body 9, so that the waveguide rod body 9 is stably installed on the double-station angle adjustment structure 7. At this time, the staff can preliminarily adjust the horizontality of the waveguide rod body 9 through the double-station angle adjustment structure 7, so that the waveguide rod body 9 is in a suitable detection position, and then the staff releases the tightening restriction of the block 3 by the transverse locking bolt 4, so that the block 3 can slide in the vertical direction of the vertical pole 2. During this process, the staff can rotate the block 3 to change the direction of the waveguide rod body 9. After the direction and height of the waveguide rod body 9 are adjusted, the block 3 can be tightened by the transverse locking bolt 4, so that there is tension and friction between the block 3 and the vertical pole 2, so as to avoid the block 3, the I-plate 6, and the waveguide When the rod body 9 and other components fall, the staff can also release the tension restriction of the longitudinal locking bolt 303 on the card block 3, thereby rotating the cross bar 5, so that the cross bar 5 drives the I-shaped plate 6, the double-station angle adjustment structure 7, the waveguide rod body 9 and other components to rotate, thereby adjusting the action angle of the waveguide rod body 9 again. After its position is adjusted, the longitudinal locking bolt 303 can be used to tighten and lock the card block 3 and the cross bar 5. The card block 3 is movably installed on the vertical pole 2, and the angle is fixed by the transverse locking bolt 4, the longitudinal locking bolt 303 and other components, so that the installation height and direction of the waveguide rod can be accurately controlled, ensuring that the waveguide rod can be firmly fixed in the predetermined position after installation, and is not affected by external vibration or environmental changes. In addition, in acoustic emission detection, the horizontal adjustment of the waveguide rod is very important to ensure that it is in a horizontal position and ensures that it maintains optimal contact with the surface of the structure, so that the waveguide rod can accurately and easily receive and transmit the acoustic emission signal inside the structure, thereby maximizing the monitoring effect.

Claims

1. A waveguide rod device for an acoustic emission detection probe, characterized in that: It includes a base (1) and a vertical rod (2) installed at the top of the base (1). One end of the surface of the vertical rod (2) is slidably installed with a clamping block (3), and a cross bar (5) is installed through the inside of the clamping block (3). A transverse locking bolt (4) and a longitudinal locking bolt (303) for tightening the clamping block (3), the vertical rod (2), and the clamping block (3), the cross bar (5) are installed on one outer wall and the bottom end of the clamping block (3) respectively. One end of the cross bar (5) is fixed with an I-shaped plate (6), and a two-position angle adjustment structure (7) is arranged on the outer wall of the I-shaped plate (6) away from the cross bar (5). A positioning structure (8) is installed at the movable end of the two-position angle adjustment structure (7), and a waveguide rod body (9) is installed inside the positioning structure (8).

2. The waveguide rod device of an acoustic emission detection probe according to claim 1, characterized in that: A longitudinal cutting groove (301) is arranged on the back surface of the clamping block (3), and the threaded end of the transverse locking bolt (4) penetrates to the outside of the longitudinal cutting groove (301).

3. The waveguide rod device of an acoustic emission detection probe according to claim 1, characterized in that: A transverse cutting groove (302) is arranged on the surface of the clamping block (3), and the threaded end of the longitudinal locking bolt (303) penetrates to the outside of the transverse cutting groove (302).

4. The waveguide rod device of an acoustic emission detection probe according to claim 1, characterized in that: The two-position angle adjustment structure (7) includes two symmetric protruding parts (701) installed on one outer wall of the I-shaped plate (6). A column (702) is fixed between the two protruding parts (701). Support shafts (703) are fixed on the front and rear outer walls of the column (702). A triangular crank arm (704) is sleeved on the surface of the support shaft (703). A right-angle long support plate (706) is fixed on the outer wall of the triangular crank arm (704) away from the I-shaped plate (6). A main positioning bolt (705) is installed at the top end of the triangular crank arm (704), and the threaded end of the main positioning bolt (705) abuts against the outer wall of the support shaft (703).

5. The waveguide rod device of an acoustic emission detection probe according to claim 1, characterized in that: Both the vertical rod (2) and the cross bar (5) are made of hard plastic components.

6. The waveguide rod device of an acoustic emission detection probe according to claim 4, characterized in that: The positioning structure (8) includes a convex character hollow seat (801) with a through hole fixed on one outer wall of the right-angle long support plate (706), and a second positioning bolt (802) is installed on one outer wall of the convex character hollow seat (801). The threaded end of the second positioning bolt (802) extends into the convex character hollow seat (801).

Images