An elastic wave trigger detection probe

Abstract

This utility model discloses an elastic wave triggered detection probe, belonging to the field of detection equipment technology. It includes a probe body, a probe rod, a sealing shell, and internal detection components. An integrally formed mounting base is located at the bottom of the probe body. The probe rod is horizontally connected to the side of the probe body, with a sealing sleeve at the connection point. The sealing shell is threaded to cover the open end of the probe body, with a sealing ring on the connection surface and sealant applied to the threaded portion, forming a closed cavity. The internal detection components are installed within the cavity and signal-connected to the probe rod. This device improves sealing performance through a multi-layered sealing structure, preventing impurities from entering. The mounting base ensures stable installation, effectively solving the problems of poor sealing performance and insufficient environmental adaptability of existing probes, making it suitable for various complex detection scenarios.

Description

Technical Field

[0001] This utility model provides a probe, and particularly relates to an elastic wave triggered detection probe. Background Technology

[0002] An elastic wave trigger detection probe is a device that can sense and capture elastic wave signals generated by the vibration of an object, convert them into electrical signals for processing and analysis, thereby enabling the monitoring of structural state, object motion, etc. It is widely used in engineering structural health monitoring, geological exploration, industrial equipment fault diagnosis and other fields. Its core function is to provide raw data support for subsequent analysis and judgment by accurately detecting elastic wave signals.

[0003] Existing elastic wave triggered detection probes typically consist of a probe housing, a detection module housed within the housing, and a sensing rod for receiving elastic waves. The sensing rod is generally inserted directly into the housing and connected to the detection module. The housing often uses a simple snap-fit ​​or single thread connection, and the connection between the sensing rod and the housing often lacks an effective sealing structure. This structural design results in significant shortcomings in the practical use of existing probes. The connection points between the housing and the cover, and between the sensing rod and the housing, are prone to becoming weak points in the seal. External moisture, dust, and other impurities can easily enter the probe through these points, affecting the normal operation of the detection module, reducing detection accuracy, and shortening the equipment's lifespan. Furthermore, in complex environments such as humid, dusty, and vibrating conditions, its structural stability and sealing performance further decline, resulting in poor environmental adaptability and making it difficult to meet the requirements for long-term stable detection. Utility Model Content

[0004] To address the aforementioned issues, this application provides an elastic wave triggered detection probe, which solves the problems of poor sealing performance and susceptibility to environmental interference in existing devices, thereby improving adaptability and detection stability in complex environments.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an elastic wave triggered detection probe, including a probe body, a detection rod, a sealed shell and an internal detection component;

[0006] The probe body is fitted with a rectangular box-shaped structure, and its bottom is provided with a mounting base for installation and fixation, and the mounting base is provided with mounting holes; the probe rod is a long strip-shaped rod, one end of which is fixedly connected to the top of one side of the probe body in a horizontal direction, and the connection between the probe rod and the probe body is provided with a sealing connection structure.

[0007] The sealing housing is a box structure adapted to the probe body with one end open. The sealing housing is covered by the open end of the probe body through a detachable connection structure to form a closed receiving cavity.

[0008] The internal detection component is installed in the closed cavity and includes an elastic wave triggered detection module. This module is signal connected to the probe rod and is used to receive and process the elastic wave signal transmitted by the probe rod. A sealing ring is provided between the connection surface of the sealed housing and the probe body, and the sealing ring is arranged around the opening edge of the closed cavity.

[0009] Preferably, the detachable connection structure is as follows: the outer wall of the probe body opening end is provided with external threads, the inner wall of the sealing housing port is provided with internal threads, the sealing housing is connected to the probe body opening end by thread engagement, and the thread engagement part is coated with sealant.

[0010] Preferably, the sealing connection structure includes a sealing sleeve at the connection between the probe rod and the probe body. The sealing sleeve is made of rubber and is fitted onto the connection section between the probe rod and the probe body. One end of the sealing sleeve is tightly fitted to the outer wall of the probe rod, and the other end is tightly fitted to the outer surface of the probe body.

[0011] Preferably, the mounting base is a plate-shaped structure integrally formed with the bottom of the probe body, the mounting holes are through holes penetrating the mounting base, and there are multiple mounting holes evenly distributed along the length direction of the mounting base.

[0012] Preferably, the end of the probe rod away from the probe body is a smooth end structure, and the rod body is a hollow structure with a wire for signal transmission inside. One end of the wire is connected to the internal detection component, and the other end extends to the smooth end of the probe rod.

[0013] Preferably, the internal detection component further includes a circuit board, the elastic wave triggered detection module is soldered on the circuit board, the circuit board is installed in the closed receiving cavity by multiple fixing posts, one end of the fixing post is fixedly connected to the bottom of the inner wall of the probe body, and the other end is supported and connected to the bottom of the circuit board.

[0014] Preferably, the fixing post is a cylindrical structure made of insulating material, and an insulating gasket is provided at the connection between the fixing post and the circuit board, with the insulating gasket sleeved on the top of the fixing post.

[0015] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0016] This device primarily addresses the issues of poor sealing and insufficient environmental adaptability in existing elastic wave detection probes. Specifically, it achieves this through the following methods: the probe body and the sealing housing are connected by a threaded connection, forming a double seal with a sealing ring and sealant, effectively preventing external moisture and dust from entering the sealed cavity; a rubber sealing sleeve is installed at the connection point between the probe rod and the probe body to prevent this area from becoming a weak point in the seal; the internal detection components are completely enclosed within the sealed cavity formed by the probe body and the sealing housing, reducing the impact of the external environment on the core detection components; simultaneously, the stable structure of the mounting base ensures stable installation of the probe in complex environments. The overall structural design, through multiple sealing measures and a stable installation method, improves the probe's sealing performance and adaptability to different environments.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of an elastic wave triggering detection probe according to the present invention;

[0019] Figure 2 This is a schematic diagram of the probe body of an elastic wave triggered detection probe according to the present invention.

[0020] Figure 3 This is a cross-sectional view of an elastic wave triggered detection probe according to the present invention.

[0021] Figure 4 This is a flow chart of the detection component of an elastic wave triggered detection probe according to the present invention.

[0022] As shown in the figure:

[0023] 1. Probe body; 2. Probe rod; 3. Sealed housing; 4. Internal detection components; 5. Mounting base. Detailed Implementation

[0024] 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.

[0025] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] As shown in the figure, an elastic wave triggered detection probe includes a probe body 1 with a rectangular box-shaped structure, and a mounting base 5 fitted on the outside of the probe body 1. The mounting base 5 is a plate-shaped structure integrally formed with the bottom of the probe body 1, and has multiple through holes evenly distributed along the length direction as mounting holes. A long strip-shaped probe rod 2 is horizontally fixedly connected to the top of one side of the probe body 1. The connection between the two is provided with a sealing connection structure, which includes a rubber sealing sleeve fitted on the connection section. One end of the sleeve is tightly fitted to the outer wall of the probe rod 2, and the other end is tightly fitted to the outer side of the probe body 1. The probe body 1 has an opening at one end covered by a detachable connection structure, which forms a closed cavity. The detachable connection structure is formed by the external thread on the outer wall of the opening end of the probe body 1 engaging with the internal thread on the inner wall of the port of the sealing housing 3. The threaded engagement part is coated with sealant. At the same time, a sealing ring is provided between the connection surface of the sealing housing 3 and the probe body 1, surrounding the edge of the opening. The internal detection component 4 is installed in the closed cavity and includes an elastic wave trigger detection module that is connected to the probe rod 2 for receiving and processing the elastic wave signal transmitted by the probe rod 2.

[0028] In this embodiment, the internal detection component 4 is installed in the closed cavity formed by the probe body 1 and the sealing housing 3, and is connected to the probe rod 2 to receive and process elastic wave signals; the sealing housing 3 is screwed onto the open end of the probe body 1, the connection surface is provided with a sealing ring and the threaded part is coated with sealant; the probe rod 2 is horizontally fixed to the top of one side of the probe body 1, and the connection part is fitted with a rubber sealing sleeve; the mounting base 5 is integrally formed with the bottom of the probe body 1, and has multiple evenly distributed mounting holes.

[0029] From the perspective of implementation key points and innovation, the combined effects of the components are significant: the threaded connection between the probe body 1 and the sealing housing 3, along with the sealing ring and sealant, forms a double-sealing structure, effectively enhancing the sealing performance of the enclosed cavity and preventing external moisture and dust from entering; the rubber sealing sleeve at the connection between the probe rod 2 and the probe body 1 fills the gap between the two, preventing this part from becoming a weak point in the seal and further improving the overall sealing performance; the one-piece molding design of the mounting base 5 and the setting of multiple mounting holes ensure that the probe can be stably installed in different positions, enhancing structural stability; the internal detection component 4 is in a closed environment, reducing interference from the external environment and ensuring detection accuracy and equipment lifespan. These structures work together to effectively solve the problems of poor sealing performance and insufficient environmental adaptability of existing devices.

[0030] As shown in the figure, the internal detection component 4 also includes a circuit board. The elastic wave trigger detection module is soldered onto the circuit board. The circuit board is installed in the closed cavity through multiple fixing posts. The fixing posts are cylindrical structures made of insulating material. One end is fixedly connected to the bottom of the inner wall of the probe body 1, and the other end is supported and connected to the bottom of the circuit board. An insulating gasket is provided at the connection between the fixing post and the circuit board. The end of the probe rod 2 away from the probe body 1 is a smooth end structure. Its rod body is a hollow structure with wires inside. One end of the wire is connected to the internal detection component 4, and the other end extends to the smooth end of the probe rod 2.

[0031] In this embodiment, the circuit board of the internal detection component 4 is installed in the closed cavity by multiple cylindrical fixing posts made of insulating material. One end of the fixing post is fixed to the bottom of the inner wall of the probe body 1, and the other end supports the circuit board and the connection is covered with an insulating gasket. The elastic wave trigger detection module is soldered to the circuit board. The end of the probe rod 2 away from the probe body 1 is a smooth end. The rod body is hollow and one end of the internal wire is connected to the internal detection component 4, and the other end extends to the smooth end.

[0032] From the perspective of implementation key points and innovation, these structural designs bring multiple beneficial effects: the combination of insulating fixing posts and insulating gaskets effectively avoids conductive interference between the circuit board and the probe body 1, ensuring the accuracy of signal processing in the detection module; the hollow probe rod 2 provides a protective channel for the wires, preventing them from being corroded by the external environment, while the smooth end design reduces contact resistance during detection, facilitating more sensitive reception of elastic wave signals; the connection method of the wires extending from the end of the probe rod 2 to the internal detection component 4 ensures the stability and efficiency of elastic wave signal transmission, further improving the detection accuracy and reliability of the probe, and working synergistically with the aforementioned sealing structure to comprehensively optimize the performance of the device.

[0033] When using this device, it needs to be fixed with stainless steel bolts through the mounting holes on the mounting base 5. The probe body 1 can be made of 6061 aluminum alloy to balance strength and lightness. The sealing ring is made of nitrile rubber to enhance weather resistance. The sealant applied to the threaded engagement part can be silicone sealant to improve sealing durability. The probe rod 2 is made of 304 stainless steel to avoid corrosion. The fixing column is made of polytetrafluoroethylene to ensure insulation performance. At the same time, the internal detection component 4 needs to be connected to the data acquisition device in the existing technology through wires. The data acquisition device is then connected to the host computer through a signal line. The host computer uses the preset signal analysis software to display the waveform and extract features of the received elastic wave signal, thereby completing the entire detection process.

[0034] Specifically, during installation, first use sandpaper (as is available in existing technology) to clean rust and impurities from the mounting base 5 and its corresponding mounting surface. Then, align the mounting base 5 with the mounting surface, ensuring the mounting holes are aligned with the pre-set screw holes on the mounting surface. Next, use appropriate carbon steel expansion bolts to pass through the mounting holes and tighten them with an electric screwdriver to a torque of 5-8 N·m. If there is a height difference between the mounting surfaces, stainless steel adjusting shims (as is available in existing technology) can be inserted into the bottom of the mounting base 5 to calibrate the levelness of the probe body 1. During use, connect the wires of the internal detection component 4 to the data acquisition interface via the existing standard DB9 interface. After the data acquisition unit is connected and powered by a 220V to 12V switching power supply, the signal acquisition software developed based on LabVIEW in the host computer is started. The software establishes communication with the data acquisition unit through the Modbus protocol. Then, the smooth end of the probe rod 2 is gently tapped with a rubber hammer, and the signal waveform on the host computer interface is observed simultaneously. Once the waveform is confirmed to be free of distortion, the initialization is completed. During the detection process, the data acquisition unit packages and sends the data to the host computer every 30 seconds. The host computer automatically filters the data and stores it in the database, thus forming a complete detection closed loop.

[0035] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. An elastic wave triggered detection probe, characterized in that, It includes a probe body (1), a probe rod (2), a sealed housing (3), and an internal detection assembly (4); The probe body (1) is fitted with a rectangular box-shaped structure, and a mounting base (5) for installation and fixing is provided at the bottom. The mounting base (5) is provided with mounting holes. The probe rod (2) is a long rod, one end of which is fixedly connected to the top of one side of the probe body (1) in the horizontal direction. The connection between the probe rod (2) and the probe body (1) is provided with a sealing connection structure. The sealing housing (3) is a box structure adapted to the probe body (1) with one end open. The sealing housing (3) is covered by the open end of the probe body (1) through a detachable connection structure to form a closed receiving cavity. The internal detection component (4) is installed in the closed cavity and includes an elastic wave trigger detection module. This module is signal connected to the probe rod (2) and is used to receive and process the elastic wave signal transmitted by the probe rod (2). A sealing ring is provided between the connection surface of the sealed housing (3) and the probe body (1). The sealing ring is arranged around the opening edge of the closed cavity.

2. The elastic wave triggered detection probe according to claim 1, characterized in that, The detachable connection structure is as follows: the outer wall of the probe body (1) opening end is provided with external threads, the inner wall of the port of the sealing housing (3) is provided with internal threads, the sealing housing (3) is connected to the opening end of the probe body (1) by thread engagement, and the thread engagement part is coated with sealant.

3. The elastic wave triggered detection probe according to claim 1, characterized in that, The sealed connection structure includes a sealing sleeve at the connection between the probe rod (2) and the probe body (1). The sealing sleeve is made of rubber and is fitted on the connection section between the probe rod (2) and the probe body (1). One end of the sealing sleeve is tightly fitted to the outer wall of the probe rod (2), and the other end is tightly fitted to the outer side of the probe body (1).

4. The elastic wave triggered detection probe according to claim 1, characterized in that, The mounting base (5) is a plate-shaped structure integrally formed with the bottom of the probe body (1). The mounting holes are through holes that penetrate the mounting base (5), and there are multiple mounting holes that are evenly distributed along the length of the mounting base (5).

5. The elastic wave triggered detection probe according to claim 1, characterized in that, The end of the probe rod (2) away from the probe body (1) is a smooth end structure, and the rod body of the probe rod (2) is a hollow structure with a wire for signal transmission inside. One end of the wire is connected to the internal detection component (4), and the other end extends to the smooth end of the probe rod (2).

6. The elastic wave triggered detection probe according to claim 1, characterized in that, The internal detection component (4) also includes a circuit board. The elastic wave trigger detection module is soldered onto the circuit board. The circuit board is installed in the closed cavity through multiple fixing posts. One end of the fixing post is fixedly connected to the bottom of the inner wall of the probe body (1), and the other end is supported and connected to the bottom of the circuit board.

7. The elastic wave triggered detection probe according to claim 6, characterized in that, The fixing post is a cylindrical structure made of insulating material. An insulating gasket is provided at the connection between the fixing post and the circuit board, and the insulating gasket is sleeved on the top of the fixing post.

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