Handheld nondestructive testing machine

Abstract

The utility model discloses a handheld nondestructive testing machine, which relates to the technical field of nondestructive testing, and comprises a chest hanger, one side of the chest hanger is fixedly connected with a support column, the inside of the support column is rotatably connected with a first ball screw, bearings are arranged in the support column and are positioned at the two ends of the first ball screw, and the first ball screw is rotatably connected with the first ball screw. The outer side of the first ball screw is in threaded connection with a push column, one end of the push column extends to the outer side of the supporting column and is fixedly connected with two side plates, a bearing is arranged on one side of each side plate, a rotating shaft is mounted in each bearing, and a mounting plate is fixedly connected between the two rotating shafts. By arranging the supporting column, the mounting plate and the main machine, the main machine can be hung in front of the chest of a user, the distance between the main machine and the chest of the user and the angle of the main machine can be adjusted, so that the user does not need to hold the main machine to operate the main machine, and the ultrasonic flaw detection work can be conveniently carried out by the machine.

Description

Technical Field

[0001] This utility model relates to the field of nondestructive testing technology, specifically a handheld nondestructive testing machine. Background Technology

[0002] The GUT36 ultrasonic flaw detector for pipe weld inspection is a non-destructive testing method that inspects the surface and internal quality of components without damaging the workpiece or raw materials. While there are many types of flaw detectors, the pulse-echo ultrasonic flaw detector is the most widely used in actual flaw detection processes. Generally, in homogeneous materials, the presence of defects causes discontinuities, which often lead to inconsistencies in acoustic impedance. According to the reflection theorem, ultrasonic waves will be reflected at the interface between two media with different acoustic impedances. The magnitude of the reflected energy depends on the difference in acoustic impedance between the two media at the interface and the orientation and size of the interface. The pulse-echo ultrasonic flaw detector is designed based on this principle. However, when using the GUT36 ultrasonic flaw detector for pipe weld inspection, one hand needs to hold the main unit and the other hand holds the ultrasonic probe. This requires the user to operate the main unit, which necessitates using the fingers of the hand holding the main unit, resulting in inconvenience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a handheld non-destructive testing machine, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a handheld non-destructive testing machine, comprising a chest hanger, a support column fixedly connected to one side of the chest hanger, a first ball screw rotatably connected inside the support column, bearings provided inside the support column at both ends of the first ball screw, a push column threadedly connected to the outer side of the first ball screw, one end of the push column extending to the outer side of the support column and fixedly connected to two side plates, a bearing provided on one side of each side plate, and a rotating shaft installed inside each bearing, a mounting plate fixedly connected between the two rotating shafts, one end of one rotating shaft extending into the interior of a fixed box and fixedly fitted with a second worm gear, a second worm rotatably connected inside the fixed box, bearings provided inside the fixed box at both ends of the second worm, and one end of the second worm extending to the outer side of the fixed box.

[0005] Preferably, a host is placed on one side of the mounting plate, and a lower limit block is fixedly connected to one side of the mounting plate and below the host.

[0006] Preferably, the mounting plate has a movable groove inside and a threaded groove on the top of the mounting plate. A screw is threaded into the threaded groove. The bottom end of the screw extends into the movable groove and is rotatably connected to an upper limit block. The upper limit block is slidably connected to the inside of the movable groove. One end of the upper limit block extends to the outside of the mounting plate and is located above the host.

[0007] Preferably, a wire is plugged into one side of the main unit, and an ultrasonic probe is plugged into one end of the wire.

[0008] Preferably, an elastic bracket is fixedly connected to one side of the mounting plate, and the elastic bracket cooperates with the ultrasonic probe.

[0009] Preferably, a first worm gear is fixedly sleeved on the outer side of the first ball screw, a first worm is rotatably connected inside the support column, and bearings are provided inside the support column and on the outer sides of both ends of the first worm. The top end of the first worm extends to the top of the support column.

[0010] This utility model provides a handheld non-destructive testing machine, which has the following beneficial effects:

[0011] 1. This handheld non-destructive testing machine, with its support column, mounting plate, and main unit, allows the main unit to be hung on the user's chest. The distance between the main unit and the user's chest can be adjusted, as can the angle of the main unit. This eliminates the need for the user to hold and operate the main unit, making it convenient for ultrasonic flaw detection.

[0012] 2. This handheld non-destructive testing machine is equipped with an upper limit block, a lower limit block, and screws. When the main unit needs to be removed, the operator rotates the screw, causing the upper limit block to move upward, and then removes the main unit from one side of the mounting plate. When the main unit needs to be installed, it is placed on one side of the mounting plate, so that the main unit is above the lower limit block. Then, the operator resets and rotates the screw, causing the upper limit block to move downward, so that the upper limit block contacts the top of the main unit. Thus, the main unit is fixed by the upper and lower limit blocks, making it convenient to hold the main unit in the hand or hang it around the user's neck for use as needed. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 2 This is a side view of the mounting plate structure of this utility model;

[0015] Figure 3 This is a side view of the structure of the chest pendant of this utility model;

[0016] Figure 4This is a schematic diagram of the internal structure of the support column of this utility model;

[0017] Figure 5 This utility model Figure 1 Enlarged view of point A.

[0018] In the diagram: 1. Chest hanger; 2. Support column; 3. First ball screw; 4. First worm gear; 5. First worm; 6. Push column; 7. Side plate; 8. Mounting plate; 9. Lower limit block; 10. Main unit; 11. Threaded groove; 12. Screw; 13. Moving groove; 14. Upper limit block; 15. Fixing box; 16. Rotating shaft; 17. Second worm gear; 18. Second worm; 19. Elastic bracket; 20. Wire; 21. Ultrasonic probe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1

[0021] Please see Figures 1 to 5 This utility model provides a technical solution: a handheld non-destructive testing machine, including a chest hanger 1, a support column 2 fixedly connected to one side of the chest hanger 1, a first ball screw 3 rotatably connected inside the support column 2, bearings are provided inside the support column 2 and at both ends of the first ball screw 3, a push column 6 is threadedly connected to the outside of the first ball screw 3, one end of the push column 6 extends to the outside of the support column 2 and is fixedly connected to two side plates 7, a bearing is provided on one side of each side plate 7, and a rotating shaft 16 is installed inside each bearing, a mounting plate 8 is fixedly connected between the two rotating shafts 16, one end of one rotating shaft 16 extends into the inside of a fixed box 15 and is fixedly fitted with a second worm gear 17, a second worm 18 is rotatably connected inside the fixed box 15, bearings are provided inside the fixed box 15 and at both ends of the second worm 18, and one end of the second worm 18 extends to the outside of the fixed box 15.

[0022] The main unit 10 is placed on one side of the mounting plate 8. A lower limit block 9 is fixedly connected to one side of the mounting plate 8 and below the main unit 10. The bottom of the main unit 10 can be limited by the lower limit block 9.

[0023] The mounting plate 8 has a movable groove 13 inside and a threaded groove 11 on the top. A screw 12 is threaded inside the threaded groove 11. The bottom end of the screw 12 extends into the movable groove 13 and is rotatably connected to an upper limit block 14. The upper limit block 14 is slidably connected to the movable groove 13. One end of the upper limit block 14 extends to the outside of the mounting plate 8 and is located above the main unit 10. The main unit 10 is limited and fixed by the upper limit block 14 and the lower limit block 9.

[0024] A wire 20 is plugged into one side of the host 10, and an ultrasonic probe 21 is plugged into one end of the wire 20. The ultrasonic probe 21 communicates with the host 10 through the wire 20.

[0025] An elastic bracket 19 is fixedly connected to one side of the mounting plate 8. The elastic bracket 19 cooperates with the ultrasonic probe 21, and the ultrasonic probe 21 can be limited by the elastic bracket 19.

[0026] Example 2

[0027] Please see Figure 1 and Figure 4 This utility model provides a technical solution: a first worm gear 4 is fixedly sleeved on the outer side of the first ball screw 3, a first worm 5 is rotatably connected inside the support column 2, bearings are provided inside the support column 2 and on the outer sides of both ends of the first worm 5, and the top end of the first worm 5 extends to the top of the support column 2, so that by rotating the first worm 5, the first worm gear 4 and the first ball screw 3 can be rotated, and then the push column 6, the side plate 7, the mounting plate 8 and the main unit 10 can be moved by the first ball screw 3.

[0028] In summary, when using this handheld non-destructive testing machine, the operator wears the chest suspender 1. The operator then rotates the first worm gear 5, causing the first worm wheel 4 and the first ball screw 3 to rotate. The ball screw 3 drives the push column 6, which in turn moves the side plate 7, mounting plate 8, and main unit 10, adjusting the distance between the main unit 10 and the user's chest. The operator then rotates the second worm gear 18, causing the second worm wheel 17 and the rotating shaft 16 to rotate. This rotates the mounting plate 8, adjusting the angle of the main unit 10. The user then removes the ultrasonic probe 21 from the elastic holder 19 and places it on the outside of the pipe for ultrasonic testing. With the other hand, the operator operates the main unit 10 and applies coupling agent to the outside of the pipe. When not in use, the chest hanger 1 can be removed from the user. When the main unit 10 needs to be removed, the operator turns the screw 12, causing the screw 12 to move the upper limit block 14 upward. Then, the main unit 10 is removed from one side of the mounting plate 8. When the main unit 10 needs to be installed, the main unit 10 is placed on one side of the mounting plate 8, so that the main unit 10 is above the lower limit block 9. Then, the operator resets and turns the screw 12, causing the screw 12 to drive the upper limit block 14 downward, so that the upper limit block 14 contacts the top of the main unit 10, thereby fixing the main unit 10 through the upper limit block 14 and the lower limit block 9.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A handheld non-destructive testing machine, comprising a chest strap (1), characterized in that: A support column (2) is fixedly connected to one side of the chest pendant (1). A first ball screw (3) is rotatably connected inside the support column (2). Bearings are provided inside the support column (2) and at both ends of the first ball screw (3). A push column (6) is threadedly connected to the outer side of the first ball screw (3). One end of the push column (6) extends to the outer side of the support column (2) and is fixedly connected to two side plates (7). Bearings are provided on one side of each side plate (7), and the bearings are all... A rotating shaft (16) is installed, and a mounting plate (8) is fixedly connected between the two rotating shafts (16). One end of one of the rotating shafts (16) extends into the interior of the fixed box (15) and is fixedly fitted with a second worm gear (17). A second worm (18) is rotatably connected inside the fixed box (15). Bearings are provided inside the fixed box (15) and on the outer sides of both ends of the second worm (18). One end of the second worm (18) extends to the outer side of the fixed box (15).

2. The handheld non-destructive testing machine according to claim 1, characterized in that: The host (10) is placed on one side of the mounting plate (8), and a lower limit block (9) is fixedly connected to one side of the mounting plate (8) and below the host (10).

3. The handheld non-destructive testing machine according to claim 1, characterized in that: The mounting plate (8) has a movable groove (13) inside and a threaded groove (11) on the top of the mounting plate (8). A screw (12) is threaded inside the threaded groove (11). The bottom end of the screw (12) extends into the movable groove (13) and is rotatably connected to an upper limit block (14). The upper limit block (14) is slidably connected to the movable groove (13). One end of the upper limit block (14) extends to the outside of the mounting plate (8) and is located above the host (10).

4. A handheld non-destructive testing machine according to claim 2, characterized in that: A wire (20) is plugged into one side of the host (10), and an ultrasonic probe (21) is plugged into one end of the wire (20).

5. A handheld non-destructive testing machine according to claim 1, characterized in that: An elastic bracket (19) is fixedly connected to one side of the mounting plate (8), and the elastic bracket (19) cooperates with the ultrasonic probe (21).

6. A handheld non-destructive testing machine according to claim 1, characterized in that: The first ball screw (3) is fixedly sleeved with a first worm gear (4), and the first worm (5) is rotatably connected inside the support column (2). Bearings are provided inside the support column (2) and on the outer sides of both ends of the first worm (5). The top end of the first worm (5) extends to the top of the support column (2).

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