Ultrasonic detection angle probe assembly provided with quick-release coupling agent spray head

Abstract

The utility model discloses an ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle, which belongs to the technical field of inspection and detection of special equipment and comprises a nozzle assembly and a probe assembly, the nozzle assembly is mounted at the top of the probe assembly in a coupling manner and is connected with an external backpack assembly through a guide pipe, and the external backpack assembly is connected with the quick-release coupling agent nozzle. According to the ultrasonic flaw detection device, the actions of applying a coupling agent and sweeping the probe in the field ultrasonic detection of the special equipment are integrated, so that the actions can be completed in the same working step; the problems of couplant loss, low efficiency, difficulty in applying the couplant by holding the sprinkling can and the like in the ultrasonic detection process of large pressure-bearing special equipment are solved, the labor intensity of large-range and long-time detection activity is reduced, and the efficiency and the detection accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special equipment inspection and testing, in particular to an ultrasonic testing inclined probe assembly equipped with a quick-release coupling agent nozzle. Background Technique

[0002] Ultrasonic flaw detection is a method of inspecting part defects by utilizing the characteristics that ultrasonic energy penetrates deep into metal materials and reflects at the interface edge when passing from one cross-section to another. When the ultrasonic beam passes from the probe on the part surface into the metal interior, reflection waves occur respectively when encountering defects and the part bottom surface, forming pulse waveforms on the fluorescence screen. The position and size of the defects are judged based on these pulse waveforms. A device that assembles a transducer as the main component to have certain characteristics for ultrasonic emission and reception is often called a probe. The ultrasonic probe is one of the most important components of an ultrasonic detection system, and its performance directly affects the ultrasonic detection ability and effect. The piezoelectric transducer probe generally consists of a piezoelectric wafer, a damping block, a connector, a cable, a protective film, and a housing to form an inclined probe. Usually, there is also a wedge block that makes the wafer form a certain angle with the incident surface. Figure 8 The basic structure of the probe is shown. The liquid added between the probe and the side of the part is called a coupling agent, which can exclude the air between the probe and the workpiece surface, reduce the acoustic impedance, and enable ultrasonic waves to effectively penetrate into the workpiece. It is a necessary condition for the effective implementation of ultrasonic detection.

[0003] In the on-site ultrasonic detection of large pressure-bearing special equipment such as spherical tanks, the length of the welds to be detected reaches several hundred meters or even more than a thousand meters, and most of the welds are at a relatively high position from the ground. The inspectors need to climb to the scaffolding built at a high place to carry out the detection. One hand holds the probe to scan the detection surface, and the other hand holds the main unit to observe the reflection waves on the display screen. They also need to carry a handheld spray pot filled with coupling agent and spray the coupling agent on the parts to be detected in advance before the probe sweeps. Due to the large area of the equipment welds and the heat-affected zone and their position in the horizontal welding position, the coupling agent is severely lost due to gravity. Therefore, to achieve a better coupling effect, the detector needs to frequently put down the probe or the main unit, then pick up the spray pot to spray the coupling agent, and then put down the spray pot and pick up the instrument again. Such discontinuous repeated actions increase fatigue and reduce efficiency for detection operations with a large workload. At the same time, the activity space in the high-altitude environment is small and complex, and people's movements are restricted. The above operations may also cause the spray pot or the instrument to slip out of the hand and fall from a high altitude, causing losses. Content of the Utility Model

[0004] The purpose of this section is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract of the specification and the title of the utility model, to avoid obscuring the purpose of this section, the abstract of the specification, and the title of the utility model. Such simplifications or omissions shall not be used to limit the scope of the present utility model.

[0005] Therefore, the purpose of the present utility model is to provide an ultrasonic testing angle probe assembly equipped with a quick-release couplant spray head, which can solve the problems of limited and complex activity space in high-altitude environments, restricted human movements, and the possibility of the spray pot or instrument slipping out of the hand and falling from a high altitude, causing losses.

[0006] To solve the above technical problems, the present utility model provides an ultrasonic testing angle probe assembly equipped with a quick-release couplant spray head, adopting the following technical solutions: including a spray head assembly and a probe assembly, and the spray head assembly is coupled and installed on the top of the probe assembly. The spray head assembly is connected to an external backpack assembly through a conduit, and the probe assembly is connected to an ultrasonic shear wave flaw detector host through a wire.

[0007] Optionally, a spray head is installed at the front end of the spray head assembly, a wireless remote control button is installed on the right side of the spray head assembly, engaging grooves and locking movable grooves are symmetrically opened on the left and right sides of the spray head assembly, and the wireless remote control button, the engaging grooves, and the locking movable grooves are arranged in sequence from front to back. A lock catch is slidably installed in the locking movable groove. A limiting post is provided on the side of the lock catch close to the center of the spray head assembly, and the limiting post extends into the inner cavity of the engaging groove. A positioning pin is installed on the side of the inner cavity of the engaging groove close to the center of the spray head assembly. A water pipe interface is installed at the rear of the spray head assembly, and the water pipe interface is connected to the external backpack assembly through a conduit.

[0008] Optionally, a contraction groove is opened inside the spray head assembly, and the positioning pin is slidably installed in the contraction groove. Limiting movable grooves are symmetrically opened on the left and right sides of the rear side wall of the spray head assembly, and the limiting posts are movably installed in the limiting movable grooves. A spring is fixedly installed at the end of the limiting post away from the engaging groove, and the end of the spring away from the limiting post is fixedly installed in the limiting movable groove. An open groove penetrating the limiting post is opened on the surface of the limiting post, and a movable post is movably installed in the inner cavity of the open groove, and the movable post is fixedly connected to the lock catch.

[0009] Optionally, a fixed cross bar is hinged to the end of the movable post away from the lock catch, a right-angled bar is hinged to the end of the fixed cross bar away from the movable post, and the right-angled bar is composed of a cross bar hinged to the fixed cross bar and a vertical bar hinged to the positioning pin. A positioning movable groove is opened in the vertical bar, a limiting pin is movably installed in the inner cavity of the positioning movable groove, and a sliding groove is opened at the bottom of the inner cavity of the contraction groove, and the limiting pin is slidably installed in the sliding groove.

[0010] Optionally, communication slots communicating with the open slot are symmetrically formed on the left and right sides of the contraction slot, and the right-angle rod extends into the inner cavity of the contraction slot through the open slot and the communication slots.

[0011] Optionally, the positioning pin is composed of two sets of smooth contacts and a set of compression springs, and the two sets of smooth contacts are fixedly installed at both ends of the compression spring.

[0012] Optionally, bumps are symmetrically arranged on the left and right sides of the top of the probe assembly. Positioning holes and positioning pin withdrawal slots are formed on one side of the two bumps close to each other, and the positioning holes are located in front of the positioning pin withdrawal slots. A probe female buckle is formed on the rear side of the bump. A signal circuit interface is installed on the rear side of the probe assembly, and the signal circuit interface is connected to the ultrasonic shear wave flaw detector host through a wire.

[0013] Optionally, the external backpack assembly is an integrated sprayer, and the external backpack assembly is composed of a water pump, a liquid spraying pipe, a controller, a storage battery and a shoulder strap.

[0014] Optionally, a nozzle control circuit module and a couplant liquid pipeline module are arranged inside the nozzle assembly.

[0015] In summary, the present utility model has at least the following beneficial effects:

[0016] 1. The present utility model integrates the actions of applying the couplant and sweeping the probe in on-site ultrasonic testing of special equipment, enabling them to be completed in the same working step, which is beneficial to solving problems such as couplant loss, low efficiency, and difficulty in applying the couplant with a hand-held sprayer during ultrasonic testing of large-scale pressure-bearing special equipment, reducing the labor intensity of large-scale and long-time detection activities, and improving the efficiency and detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 is a schematic assembly structure diagram of the present utility model;

[0019] Figure 2 is a three-dimensional structure diagram of the nozzle assembly of the present utility model;

[0020] Figure 3 is a schematic vertical cross-sectional structure diagram of the locked state of the nozzle assembly of the present utility model;

[0021] Figure 4Cross-sectional structural schematic diagram of the locking state of the nozzle assembly of the present utility model;

[0022] Figure 5 Vertical cross-sectional structural schematic diagram of the disassembled state of the nozzle assembly of the present utility model;

[0023] Figure 6 Horizontal cross-sectional structural schematic diagram of the disassembled state of the nozzle assembly of the present utility model;

[0024] Figure 7 Structural schematic diagram of the probe assembly of the present utility model;

[0025] Figure 8 Structural schematic diagram of the prior art.

[0026] Explanation of reference numerals: 1. Nozzle assembly; 101. Nozzle; 102. Wireless remote control button; 103. Engaging groove; 104. Locking movable groove; 105. Lock; 106. Limit post; 107. Positioning pin; 108. Water pipe interface; 109. Shrinkage groove; 110. Limit movable groove; 111. Spring; 112. Open groove; 113. Movable post; 114. Fixed cross bar; 115. Right-angle bar; 116. Positioning movable groove; 117. Limit pin; 118. Sliding groove; 2. Probe assembly; 201. Protrusion; 202. Positioning hole; 203. Positioning pin withdrawal groove; 204. Probe female buckle; 205. Signal circuit interface. Detailed description of the specific implementation

[0027] The following is a further detailed description of the present utility model in conjunction with the attached Figures 1-8 drawings.

[0028] In the first embodiment, referring to Figure 1 , the purpose of this embodiment is to provide an ultrasonic inspection angle probe assembly equipped with a quick-release coupling agent nozzle, which can solve the problems of limited and complex movement space in high-altitude environments, restricted human movements, and the possibility of the spray bottle or instrument slipping out of the hand and falling from a high altitude, causing losses.

[0029] It includes a nozzle assembly 1 and a probe assembly 2, and the nozzle assembly 1 is coupled and installed on the top of the probe assembly 2. The nozzle assembly 1 is connected to an external backpack assembly through a conduit, and the probe assembly 2 is connected to an ultrasonic shear wave flaw detector main unit through a wire.

[0030] Based on the above technical solution, the working principle of the present utility model is as follows: When in use, the nozzle assembly 1 is connected to the liquid storage pot (i.e., the external backpack assembly) through a hose at the tail. The pot is in the form of a backpack and is carried by the inspector. There is a motor pump inside, which can receive the signal sent by pressing the wireless remote control button 102 at the nozzle part, and pump the coupling agent into the nozzle assembly 1. The shell of the nozzle assembly 1 is made of lightweight and wear-resistant plastic. The nozzle assembly 1 and the probe assembly 2 can be quickly disassembled and assembled. The separated nozzle assembly 1 and probe assembly 2 can be used separately based on the existing detection technology. Especially when the liquid in the spray pot is magnetic suspension liquid, the nozzle can continue to be used for magnetic particle detection of the same part.

[0031] Embodiment 2. Refer to Figures 2-7 , the purpose of this embodiment is to provide an ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle, to solve the problem of how to conveniently disassemble and assemble the nozzle assembly 1 and the probe assembly 2.

[0032] It includes that a nozzle 101 is installed at the front end of the nozzle assembly 1, a wireless remote control button 102 is installed on the right side of the nozzle assembly 1. Clamping grooves 103 and latch moving grooves 104 are symmetrically opened on the left and right sides of the nozzle assembly 1, and the wireless remote control button 102, the clamping groove 103 and the latch moving groove 104 are arranged in sequence from front to back. A latch 105 is slidably installed in the latch moving groove 104. A limiting column 106 is arranged on the side of the latch 105 close to the center of the nozzle assembly 1, and the limiting column 106 extends into the inner cavity of the clamping groove 103. A positioning pin 107 is installed on the side of the inner cavity of the clamping groove 103 close to the center of the nozzle assembly 1. A water pipe interface 108 is installed at the rear side of the nozzle assembly 1, and the water pipe interface 108 is connected to the external backpack assembly through a conduit.

[0033] Among them, a contraction groove 109 is opened inside the nozzle assembly 1, and the positioning pin 107 is slidably installed in the contraction groove 109. Limiting moving grooves 110 are symmetrically opened on the left and right sides of the rear side wall of the nozzle assembly 1, and the limiting column 106 is movably installed in the limiting moving grooves 110. A spring 111 is fixedly installed at the end of the limiting column 106 away from the clamping groove 103, and the end of the spring 111 away from the limiting column 106 is fixedly installed in the limiting moving groove 110. An open groove 112 penetrating the limiting column 106 is opened on the surface of the limiting column 106. A moving column 113 is movably installed in the inner cavity of the open groove 112, and the moving column 113 is fixedly connected to the latch 105.

[0034] Wherein, one end of the movable column 113 away from the latch 105 is hinged with a fixed cross bar 114, one end of the fixed cross bar 114 away from the movable column 113 is hinged with a right-angle bar 115, and the right-angle bar 115 is composed of a cross bar hinged with the fixed cross bar 114 and a vertical bar hinged with the positioning pin 107. A positioning movable groove 116 is formed in the vertical bar, a limiting pin 117 is movably installed in the inner cavity of the positioning movable groove 116, a sliding groove 118 is formed in the bottom of the inner cavity of the contraction groove 109, and the limiting pin 117 is slidably installed in the sliding groove 118.

[0035] Wherein, communication grooves communicating with the open groove 112 are symmetrically formed in the left and right sides of the contraction groove 109, and the right-angle bar 115 extends into the inner cavity of the contraction groove 109 through the open groove 112 and the communication grooves.

[0036] Wherein, the positioning pin 107 is composed of two groups of smooth contacts and a group of compression springs, and the two groups of smooth contacts are fixedly installed at both ends of the compression spring.

[0037] Wherein, convex blocks 201 are symmetrically arranged on the left and right sides of the top of the probe assembly 2. Positioning holes 202 and positioning pin withdrawal grooves 203 are formed on one side of the two groups of convex blocks 201 close to each other, and the positioning holes 202 are located on the front side of the positioning pin withdrawal grooves 203. A probe female buckle 204 is formed on the rear side of the convex block 201, and a signal circuit interface 205 is installed on the rear side of the probe assembly 2, and the signal circuit interface 205 is connected to the ultrasonic shear wave flaw detector host through a wire.

[0038] Wherein, the external backpack assembly is an integrated sprayer, and the external backpack assembly is composed of a water pump, a liquid spraying pipe, a controller, a storage battery and a shoulder strap.

[0039] Wherein, a spray head control circuit module and a coupling agent liquid pipeline module are arranged inside the spray head assembly 1.

[0040] Based on the above technical solution, the working principle of the present utility model is as follows: The nozzle assembly 1 is installed on the top of the probe assembly 2. During specific operation, the limit post 106 is moved towards one end of the water pipe interface 108 through the lock catch 105, causing the limit post 106 to retract into the limit activity slot 110. At this time, the spring 111 is compressed. Meanwhile, the lock catch 105 drives the movable post 113 to move in the engagement activity slot 104, drives the right-angle rod 115 to move through the fixed cross bar 114, and then pulls the positioning pin 107 to move in the contraction slot 109, causing the positioning pin 107 to retract into the contraction slot 109. The convex block 201 is inserted into the engagement slot 103. When the lock catch 105 is released, under the action of the spring 111, the limit post 106 is inserted into the probe female buckle 204, and the positioning pin 107 extends into the engagement slot 103 and into the positioning hole 202 to fix the probe assembly 2. The probe assembly 2 can be quickly installed on the nozzle assembly 1. Conversely, it can be quickly disassembled and assembled. When the right-angle rod 115 moves, the limit pin 117 can slide on the sliding slot 118 and the positioning activity slot 116, which can ensure the movement of the right-angle rod 115 within a certain space.

[0041] The water pump in the external backpack assembly is controlled to work through the wireless remote control button 102, and the coupling agent is conveyed to the nozzle assembly 1 to facilitate the detection work. The present invention combines a nozzle assembly 1 and a probe assembly 2 with a specific structure, making the on-site detection operation smoother and more flexible, improving the detection efficiency and reducing the labor intensity of the detector. At the same time, the nozzle assembly 1 and its attached mechanisms can also be used as tools for spraying magnetic suspension liquid in magnetic particle detection (in actual detection projects, it is often required to perform both ultrasonic detection and magnetic particle detection on the same part. Ultrasonic detection requires coupling agent, and magnetic particle detection requires magnetic suspension liquid). Compared with the way of the coupling agent flowing out from the bottom of the probe assembly 2 in the prior art, the combination of the nozzle assembly 1 and the probe assembly 2 can avoid the outlet being blocked by metal dust pollution due to contact with the surface with more dust at the bottom, and is suitable for the spraying and application of magnetic suspension liquid in the subsequent magnetic particle detection on the same part. Therefore, through flexible combination, the nozzle in this utility model can reduce the number of equipment carried at the detection site, realize the conversion between magnetic particle detection and ultrasonic detection, and simplify the on-site detection operation.

[0042] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle, characterized in that: It includes a nozzle assembly and a probe assembly, and the nozzle assembly is coupled and installed on the top of the probe assembly. The nozzle assembly is connected to an external backpack assembly through a conduit, and the probe assembly is connected to an ultrasonic shear wave flaw detection host through a wire.

2. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 1, characterized in that: A nozzle is installed at the front end of the nozzle assembly, a wireless remote control button is installed on the right side of the nozzle assembly, and a snap-fit ​​groove and a locking movable groove are symmetrically provided on the left and right sides of the nozzle assembly, and the wireless remote control button, the snap-fit ​​groove and the locking movable groove are arranged in sequence from front to back, and a lock is slidably installed in the locking movable groove, a limiting column is provided on the side of the lock close to the center of the nozzle assembly, and the limiting column extends into the inner cavity of the snap-fit ​​groove, a positioning pin is installed on the side of the inner cavity of the snap-fit ​​groove close to the center of the nozzle assembly, a water pipe interface is installed on the rear side of the nozzle assembly, and the water pipe interface is connected to the external backpack assembly through a conduit.

3. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 2, characterized in that: A shrinkage groove is provided inside the nozzle assembly, and the positioning pin is slidably installed in the shrinkage groove. Limiting movable grooves are symmetrically provided on the left and right sides of the rear side wall of the nozzle assembly, and the limiting column is movably installed in the limiting movable groove. A spring is fixedly installed at one end of the limiting column away from the engaging groove, and the end of the spring away from the limiting column is fixedly installed in the limiting movable groove. An open groove penetrating the limiting column is provided on the surface of the limiting column, and a movable column is movably installed in the inner cavity of the open groove, and the movable column is fixedly connected to the lock.

4. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 3, characterized in that: The movable column is hinged with a fixed cross bar at one end away from the lock, and a right-angle rod is hinged with the fixed cross bar at one end away from the movable column, and the right-angle rod is composed of a cross bar hinged to the fixed cross bar and a vertical rod hinged to the positioning pin. A positioning movable groove is provided on the vertical rod, and a limit pin is movably installed in the inner cavity of the positioning movable groove. A sliding groove is provided at the bottom of the inner cavity of the shrinkage groove, and the limit pin is slidably installed in the sliding groove.

5. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 4, characterized in that: The left and right sides of the contraction groove are symmetrically provided with connecting grooves connected with the open groove, and the right-angle rod extends into the inner cavity of the contraction groove through the open groove and the connecting groove.

6. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 5, characterized in that: The positioning pin is composed of two groups of smooth contacts and a group of compression springs, and the two groups of smooth contacts are fixedly installed at both ends of the compression springs.

7. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 1, characterized in that: The top of the probe assembly is symmetrically provided with protrusions on the left and right sides, and the two groups of protrusions are provided with positioning holes and positioning pin withdrawal grooves on the sides close to each other, and the positioning holes are located on the front side of the positioning pin withdrawal grooves, and the rear side of the protrusions is provided with a probe female buckle, and the rear side of the probe assembly is installed with a signal circuit interface, and the signal circuit interface is connected to the ultrasonic shear wave flaw detection host through a wire.

8. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 1, characterized in that: The external backpack component is an integrated spray pot, and the external backpack component consists of a water pump, a liquid spray pipe, a controller, a battery and a shoulder strap.

9. The ultrasonic detection angle probe assembly equipped with a quick-release coupling agent nozzle according to claim 1, characterized in that: A nozzle control circuit module and a coupling agent liquid pipeline module are arranged inside the nozzle assembly.

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