Digital ultrasonic flaw detector for nondestructive testing of pressure vessels

Abstract

The utility model belongs to the field of digital ultrasonic flaw detector, concretely relates to a digital ultrasonic flaw detector for pressure vessel nondestructive testing, including instrument, the upper end of instrument is equipped with the turnover lid through bearing, the outside of instrument is provided with angle positioning mechanism, the back of instrument is fixedly installed with a plurality of even distribution's fixed plate, the back upper portion of fixed plate is fixedly installed with fixed column, the outside of fixed plate is connected with screw frame slidingly, the outside of screw frame is fixedly installed with movable column, the outside of fixed plate is fixedly installed with mount. The utility model adds fixed plate, fixed column and movable column and other structures on the instrument, when needing to store data line, can wind data line outside fixed column and movable column simultaneously, then carries out the tension of data line after winding through the thread cooperation between screw rod and screw frame, can make data line more convenient to store.

Description

Technical Field

[0001] This utility model relates to the technical field of digital ultrasonic flaw detectors, specifically a digital ultrasonic flaw detector for non-destructive testing of pressure vessels. Background Technology

[0002] Pressure vessels must withstand significant pressure during use. Cracks or other damage to the inner wall of a pressure vessel can pose a danger. While ultrasonic flaw detectors can be used for non-destructive testing during operation and production, the varying sizes of pressure vessels necessitate the use of longer data cables to extend the range of the ultrasonic transmitter. However, the length of these cables makes them difficult to manage and hinders the proper functioning of the flaw detector. Furthermore, the flip-top cover, connected via a damping shaft, is prone to wear with repeated flipping, leading to instability when the cover is open. Therefore, improvements to the existing technology are necessary. Utility Model Content

[0003] The purpose of this invention is to provide a digital ultrasonic flaw detector for non-destructive testing of pressure vessels, which solves the problems of excessively long data cables being inconvenient to store and instability after the flip cover is flipped.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a digital ultrasonic flaw detector for non-destructive testing of pressure vessels, comprising an instrument, a flip cover mounted on the upper end of the instrument via a bearing, an angle positioning mechanism provided on the outer side of the instrument, multiple evenly distributed fixing plates fixedly mounted on the back of the instrument, a fixing column fixedly mounted on the upper part of the back of the fixing plate, a threaded frame slidably connected to the outer side of the fixing plate, a movable column fixedly mounted on the outer side of the threaded frame, a fixing bracket fixedly mounted on the outer side of the fixing plate, and a screw mounted inside the fixing bracket via a bearing.

[0005] Preferably, the upper part of the instrument is equipped with a plurality of evenly distributed buttons, and the inside of the flip cover is equipped with a display that can display the detection data.

[0006] Preferably, the movable column is slidably connected to the fixed plate, and the screw is threadedly connected to the threaded frame. The screw can drive the threaded frame to move through the threaded engagement with the threaded frame.

[0007] Preferably, a handwheel is fixedly connected to the lower end of the screw, and a handle is mounted on the lower end of the handwheel via a bearing, the handle being able to drive the handwheel to rotate.

[0008] Preferably, the angle positioning mechanism includes a fixed cover, two symmetrically distributed fixed covers are fixedly connected to the outside of the instrument, a grooved wheel is fixedly connected to the outside of the connecting shaft of the flip cover, a snap-fit ​​plate is slidably connected inside the fixed cover, a connecting rod is fixedly connected to the lower end of the snap-fit ​​plate, a handle is fixedly connected to the lower end of the connecting rod, a spring is provided on the outside of the connecting rod, and the snap-fit ​​plate can position the flip cover through the groove of the grooved wheel.

[0009] Preferably, the snap-fit ​​plate snaps into the groove of the multi-grooved wheel, the connecting rod is slidably connected to the fixed cover, and the handle is slidably in contact with the fixed cover. The handle can move the snap-fit ​​plate by driving the connecting rod.

[0010] Preferably, one end of the spring is fixedly connected to the fixing cover, and the other end of the spring is fixedly connected to the snap-fit ​​plate. The spring can automatically reset the snap-fit ​​plate through its elastic force.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a fixed plate, a fixed column, and a movable column to the instrument. When it is necessary to store the data cable, the data cable can be wound around the outside of the fixed column and the movable column at the same time. Then, the wound data cable is tensioned by the threaded engagement between the screw and the threaded frame, which makes the data cable easier to store.

[0013] 2. By adding a fixing cover, a snap-fit ​​plate, and a connecting rod to the instrument, the snap-fit ​​plate can be pushed by the spring force to snap into the groove of the multi-groove wheel on the outside of the flip cover connecting shaft, thereby limiting the angle of the flip cover and making the angle adjustment of the flip cover more stable. Attached Figure Description

[0014] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0015] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0016] Figure 3 For the present utility model Figure 1 A three-dimensional enlarged view of the fixing plate;

[0017] Figure 4 For the present utility model Figure 3 A three-dimensional magnified view of the threaded frame;

[0018] Figure 5 For the present utility model Figure 1 Enlarged front sectional view of the fixed cover.

[0019] In the diagram: 1. Instrument; 2. Flip-top cover; 3. Angle positioning mechanism; 4. Button; 5. Fixing plate; 6. Fixing column; 7. Threaded bracket; 8. Movable column; 9. Fixing bracket; 10. Screw; 11. Handwheel; 12. Handle; 13. Display; 31. Fixing cover; 32. Multi-grooved wheel; 33. Snap-fit ​​plate; 34. Connecting rod; 35. Handle; 36. Spring. 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] Please see Figure 1-5 A digital ultrasonic flaw detector for non-destructive testing of pressure vessels includes an instrument 1. A flip cover 2 is mounted on the upper end of the instrument 1 via a bearing. An angle positioning mechanism 3 is provided on the outer side of the instrument 1. Multiple evenly distributed fixing plates 5 are fixedly mounted on the back of the instrument 1. A fixing column 6 is fixedly mounted on the upper part of the back of the fixing plate 5. A threaded frame 7 is slidably connected to the outer side of the fixing plate 5. A movable column 8 is fixedly mounted on the outer side of the threaded frame 7. A fixing bracket 9 is fixedly mounted on the outer side of the fixing plate 5. A screw 10 is mounted inside the fixing bracket 9 via a bearing.

[0022] Please see Figure 1-5 The upper end of the instrument 1 is equipped with multiple evenly distributed buttons 4. The inside of the flip cover 2 is equipped with a display 13, which can display the detection data. The movable column 8 is slidably connected to the fixed plate 5. The screw 10 is connected to the threaded frame 7 by a thread. The screw 10 can drive the threaded frame 7 to move through the threaded engagement between the screw 10 and the threaded frame 7. The lower end of the screw 10 is fixedly connected to a handwheel 11. The lower end of the handwheel 11 is equipped with a handle 12 through a bearing. The handle 12 can drive the handwheel 11 to rotate.

[0023] Please see Figure 1-5The angle positioning mechanism 3 includes a fixed cover 31. Two symmetrically distributed fixed covers 31 are fixedly connected to the outside of the instrument 1. A grooved wheel 32 is fixedly connected to the outside of the connecting shaft of the flip cover 2. A snap-fit ​​plate 33 is slidably connected inside the fixed cover 31. A connecting rod 34 is fixedly connected to the lower end of the snap-fit ​​plate 33. A handle 35 is fixedly connected to the lower end of the connecting rod 34. A spring 36 is provided on the outside of the connecting rod 34. The snap-fit ​​plate 33 can position the flip cover 2 through the groove of the grooved wheel 32. The snap-fit ​​plate 33 snaps into the groove of the grooved wheel 32. The connecting rod 34 is slidably connected to the fixed cover 31. The handle 35 is slidably in contact with the fixed cover 31. The handle 35 can drive the snap-fit ​​plate 33 to move through the connecting rod 34. One end of the spring 36 is fixedly connected to the fixed cover 31. The other end of the spring 36 is fixedly connected to the snap-fit ​​plate 33. The spring 36 can automatically reset the snap-fit ​​plate 33 through its elastic force.

[0024] The specific implementation process of this utility model is as follows: When in use, flip the flip cover 2 downwards. During the flipping process, the flip cover 2 drives the multi-groove wheel 32 to rotate. During the rotation, the multi-groove wheel 32 can push the locking plate 33 downwards through the arc block of the locking plate 33 and compress the spring 36. When the locking plate 33 disengages from the multi-groove wheel 32, the limitation on the multi-groove wheel 32 can be released. Then, after flipping the flip cover 2 at a certain angle, stop flipping. The spring 36 returns to its original position. The spring 36 can drive the locking plate 33 to engage inside the groove of the multi-groove wheel 32 through its elastic force, thus completing the angle positioning of the flip cover 2.

[0025] When the data cable needs to be stored, the handle 12 drives the handwheel 11 to rotate, which in turn drives the screw 10 to rotate. During the rotation, the screw 10 can move the threaded bracket 7 and the movable column 8 through the threaded engagement with the threaded bracket 7. When the movable column 8 moves to the predetermined position, the rotation stops. Then, the data cable is evenly wound around the outside of the fixed column 6 and the movable column 8. After the winding is completed, the screw 10 is rotated two more times, which can tighten the wound data cable through the threaded bracket 7 and the movable column 8, making the data cable more tightly stored.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digital ultrasonic flaw detector for non-destructive testing of pressure vessels, comprising an instrument (1), characterized in that: The upper end of the instrument (1) is fitted with a flip cover (2) via a bearing. An angle positioning mechanism (3) is provided on the outside of the instrument (1). Multiple evenly distributed fixing plates (5) are fixedly installed on the back of the instrument (1). A fixing column (6) is fixedly installed on the upper part of the back of the fixing plate (5). A threaded frame (7) is slidably connected to the outside of the fixing plate (5). A movable column (8) is fixedly installed on the outside of the threaded frame (7). A fixing bracket (9) is fixedly installed on the outside of the fixing plate (5). A screw (10) is installed inside the fixing bracket (9) via a bearing.

2. The digital ultrasonic flaw detector for non-destructive testing of pressure vessels according to claim 1, characterized in that: The instrument (1) is equipped with a number of evenly distributed buttons (4) on its upper end, and a display (13) is installed inside the flip cover (2).

3. The digital ultrasonic flaw detector for non-destructive testing of pressure vessels according to claim 1, characterized in that: The movable column (8) is slidably connected to the fixed plate (5), and the screw (10) is threadedly connected to the threaded frame (7).

4. A digital ultrasonic flaw detector for non-destructive testing of pressure vessels according to claim 1, characterized in that: The lower end of the screw (10) is fixedly connected to a handwheel (11), and the lower end of the handwheel (11) is fitted with a handle (12) via a bearing.

5. A digital ultrasonic flaw detector for non-destructive testing of pressure vessels according to claim 1, characterized in that: The angle positioning mechanism (3) includes a fixed cover (31). Two symmetrically distributed fixed covers (31) are fixedly connected to the outside of the instrument (1). A grooved wheel (32) is fixedly connected to the outside of the connecting shaft of the flip cover (2). A snap-fit ​​plate (33) is slidably connected inside the fixed cover (31). A connecting rod (34) is fixedly connected to the lower end of the snap-fit ​​plate (33). A handle (35) is fixedly connected to the lower end of the connecting rod (34). A spring (36) is provided on the outside of the connecting rod (34).

6. A digital ultrasonic flaw detector for non-destructive testing of pressure vessels according to claim 5, characterized in that: The snap-fit ​​plate (33) snaps into the groove of the multi-grooved wheel (32), the connecting rod (34) is slidably connected to the fixing cover (31), and the handle (35) is slidably in contact with the fixing cover (31).

7. A digital ultrasonic flaw detector for non-destructive testing of pressure vessels according to claim 5, characterized in that: One end of the spring (36) is fixedly connected to the fixing cover (31), and the other end of the spring (36) is fixedly connected to the snap-fit ​​plate (33).

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