A hand-held acoustic imager

Abstract

The utility model provides a kind of palm acoustic imaging instrument, belong to palm acoustic imaging instrument technical field;Including:Acoustic imaging instrument, the front side of the acoustic imaging instrument is equipped with control screen, the control screen is used to realize the parameter setting of acoustic imaging instrument, image display and function control;The side of the acoustic imaging instrument is equipped with handheld component, the handheld component is convenient for operator to hold with one hand to improve the portability and flexibility of equipment use;The rear side of the acoustic imaging instrument is equipped with microphone array, the microphone array is used to collect the sound signal of the region to be detected and convert it into electrical signal, to realize the generation and display of acoustic image.The palm acoustic imaging instrument, by putting hand into first handheld opening, and by pressure block, hand back is clamped, make hand and acoustic imaging instrument connection stable, so as not to long time hand force to acoustic imaging instrument is clamped, realizes the comfort and stability of long time hand holding.

Description

Technical Field

[0001] This utility model belongs to the technical field of handheld acoustic imaging devices, specifically relating to a handheld acoustic imaging device. Background Technology

[0002] Acoustic imaging is a non-contact detection technology based on the visualization and processing of acoustic signals. The earliest acoustic imaging method used the liquid surface deformation method, which was subsequently developed into various technologies such as active acoustic imaging, scanning acoustic imaging, and acoustic holography, and was commercialized in the 1970s. The core technologies of modern acoustic imaging include high-sensitivity microphone arrays, beamforming algorithms, and digital signal processing technology, which can convert acoustic signals into visual images to achieve precise location and state analysis of sound sources. This technology was initially applied in the industrial field, such as gas leak detection and equipment fault diagnosis. Later, with the development of computer technology and artificial intelligence, it gradually expanded to multiple fields such as power, medical, and environmental protection. In recent years, the introduction of miniaturized MEMS microphone arrays and edge computing modules has further improved the portability and detection efficiency of the equipment, making it an important tool for intelligent detection.

[0003] Chinese patent CN218937673U discloses a portable acoustic imager. A threaded rod is threaded into a threaded groove, eliminating the need for manual lifting during extended use, thus making the imager more convenient to use. When not in use, the rod can be disassembled for easier transport. A connecting block allows the imager to rotate on the rod, enabling angle adjustment. By grasping the slot on the handle, the mounting bracket can be pulled out, allowing the mounting block to move within the mounting groove, and the limiting block to move within the sliding groove. When the mounting bracket is inserted into the battery compartment, the limiting block is engaged in the limiting groove under the force of a second spring.

[0004] However, this device requires a support rod for use. Acoustic imagers typically change their shooting images frequently, resulting in a large range of movement. This necessitates prolonged handheld use, and the support rod undoubtedly increases the difficulty of operating the acoustic imager. It makes it difficult for users to flexibly adjust the shooting angle and position during mobile testing, reducing the convenience and efficiency of the testing operation. Furthermore, most existing acoustic imagers only rely on straps for hand fixation. During prolonged handheld testing, the straps are prone to slipping relative to the hand, affecting grip stability and potentially causing hand fatigue due to excessive local pressure, further limiting the device's continuous operating time and testing accuracy. Utility Model Content

[0005] To address the inconvenience of prolonged holding in existing technologies, this invention provides a handheld acoustic imager. This device combines an acoustic imager with a handheld component to facilitate extended use. The specific technical solution is as follows: A handheld acoustic imager includes: an acoustic imager with a control screen mounted on its front side for setting parameters, displaying images, and controlling functions; a handheld component on one side of the acoustic imager for easy one-handed holding, enhancing portability and flexibility; and a microphone array mounted on the rear side of the acoustic imager for collecting sound signals from the area to be detected and converting them into electrical signals to generate and display acoustic images.

[0006] Preferably, an annular protective pad is installed on the front side of the acoustic imager, the annular protective pad being located on the outside of the control screen, and the annular protective pad being used to protect the control screen.

[0007] Preferably, a switch button is installed on one side of the control panel, and the switch button is used to control the switch of the control panel.

[0008] Preferably, a camera is mounted in the middle of the microphone array, and the camera is used to acquire image information of the area to be detected; a light is mounted on the top of the microphone array to provide illumination.

[0009] Preferably, the acoustic imager has a tripod connection port at its bottom, which is used to connect to an external tripod.

[0010] Preferably, the handheld component includes: a first handheld opening, a grip bar, and a pressure block. The first handheld opening is opened on one side of the acoustic imager. A grip bar is installed inside the first handheld opening. The grip bar is used for the operator to hold. A pressure block is slidably connected to the inner wall of one side of the first handheld opening. The pressure block is used to assist in fixing the hand on the grip bar.

[0011] Preferably, the surface of the grip bar is fitted with an anti-slip pad, which is used to increase the friction between the hand and the grip bar.

[0012] Preferably, a side sliding groove is provided on the inner wall of one side of the opening of the first hand-held part, the pressure block is slidably connected in the side sliding groove, a plurality of side openings are provided at equal intervals on one side of the inner wall of the side sliding groove, an installation cylinder is fixedly installed in the side opening, a slide rod is slidably connected in the installation cylinder, one end of the slide rod extends out of the installation cylinder, the extended end of the slide rod is fixedly connected to the pressure block, and a spring is welded between the installation cylinder and the pressure block, the spring being sleeved on the outside of the slide rod.

[0013] Preferably, the front sides of the plurality of side slots are open to the front side of the acoustic imager, and a front cover is installed on the front side of the acoustic imager to cover the plurality of side slots.

[0014] In addition, the handheld acoustic imaging device in the above-mentioned technical solution provided by this utility model may also have the following additional technical features: the handheld component includes: a second handheld opening and a finger insertion port, and the acoustic imaging device has a second handheld opening and four finger insertion ports on one side.

[0015] In the above technical solution, the second hand-held opening is for the operator to insert and hold the hand, and the four finger insertion slots are respectively adapted to the operator's index finger, middle finger, ring finger and little finger.

[0016] The handheld acoustic imaging device of this utility model has the following advantages compared with the prior art:

[0017] 1. This handheld acoustic imaging device allows for stable connection between the hand and the imaging device by placing the hand into the opening of the first handheld part and clamping the back of the hand with a pressure block. This eliminates the need for prolonged hand pressure to clamp the acoustic imaging device, achieving comfort and stability during extended handheld use. It effectively avoids the problems of slippage and hand fatigue associated with traditional strap fixation methods, improving operational flexibility and detection accuracy during mobile testing. Furthermore, the pressure block adopts an ergonomic arc design, with its inner side conforming to the natural curve of the back of the hand, and is equipped with a flexible silicone pad layer, which can effectively distribute hand pressure and reduce fatigue caused by prolonged holding.

[0018] 2. This handheld acoustic imaging device allows for quick and easy connection of the hand to the device by inserting fingers into the corresponding finger slots, further enhancing the grip. At the same time, the spacing and depth of the finger slots are designed according to the physiological characteristics of the human hand, ensuring that each finger can be naturally extended and avoiding discomfort caused by excessive bending or squeezing. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of a first embodiment of the handheld acoustic imaging device provided by this utility model;

[0020] Figure 2 A rear view schematic diagram of Embodiment 1 of the handheld acoustic imaging device provided by this utility model;

[0021] Figure 3 A partial cross-sectional view of the rear view of Embodiment 1 of the handheld acoustic imaging device provided by this utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A;

[0023] Figure 5 A three-dimensional structural schematic diagram of Embodiment 2 of the handheld acoustic imaging device provided by this utility model;

[0024] Figure 6 A rear view schematic diagram of Embodiment 2 of the handheld acoustic imaging device provided by this utility model;

[0025] in, Figures 1 to 6 The reference numerals and component names in the attached drawings are as follows: 1. Acoustic imager, 2. Control panel, 3. Microphone array, 4. Handheld component, 5. Circular protective pad, 6. Switch button, 7. Camera, 8. Lighting lamp, 9. Tripod connection port, 10. Front cover, 11. Side slide groove, 12. Side opening, 13. Mounting cylinder, 14. Slide rod, 15. Spring, 41. First handheld opening, 42. Grip bar, 43. Anti-slip pad, 44. Pressure block, 45. Second handheld opening, 46. Finger insertion port. Detailed Implementation

[0026] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figures 1-4 A handheld acoustic imaging device includes: an acoustic imaging device 1, a control screen 2 mounted on the front of the acoustic imaging device 1 for setting parameters, displaying images, and controlling functions of the acoustic imaging device 1; a handheld component 4 on one side of the acoustic imaging device 1 for easy one-handed holding by the operator to improve the portability and flexibility of the device; a data interface 3 on the other side of the acoustic imaging device 1 for data transmission and charging between the device and an external terminal; and a microphone array 3 mounted on the rear of the acoustic imaging device 1 for collecting sound signals from the area to be detected and converting them into electrical signals to generate and display acoustic images.

[0028] As a preferred option, the acoustic imager 1 is further equipped with a ring-shaped protective pad 5 on its front side. The ring-shaped protective pad 5 is located on the outside of the control screen 2 and is used to protect the control screen 2. The ring-shaped protective pad 5 is made of highly elastic polyurethane material with a thickness of 3mm and a Shore hardness of 60±5HA. In the event of an accidental drop or collision, the ring-shaped protective pad 5 can effectively absorb the impact force, preventing the control screen 2 from directly hitting the ground or hard objects and being damaged.

[0029] For optimal performance, a switch button 6 is installed on one side of the control panel 2. The switch button 6 is used to control the switch of the control panel 2. The switch button 6 is a waterproof micro switch with a non-slip rubber ring on its surface. The pressing stroke is 2.5mm and the operating force is 1.5N±0.3N, ensuring stable operation in humid environments and providing clear pressing feedback.

[0030] As a preferred option, the microphone array 3 is further mounted on the camera 7 in the middle. The camera 7 is used to collect image information of the area to be detected, realize the synchronous acquisition and fusion display of sound signals and image information, and improve the intuitiveness and positioning accuracy of acoustic imaging. The top of the microphone array 3 is equipped with an illumination lamp 8, which is used to provide illumination in the area to be detected where the light is insufficient, ensuring that the camera 7 can clearly collect image information, and at the same time facilitate the operator to observe the detection environment, thereby improving the applicability of the equipment under complex lighting conditions.

[0031] As a preferred option, the acoustic imager 1 is further provided with a tripod connection port 9 at the bottom. The tripod connection port 9 is used to connect with an external tripod to achieve stable placement of the device. This is suitable for long-term fixed area detection or unattended scenarios, further expanding the usage scenarios and application flexibility of the device.

[0032] As a preferred embodiment, the handheld component 4 further includes: a first handheld opening 41, a grip 42, and a pressure block 44. The first handheld opening 41 is opened on one side of the acoustic imager 1. The grip 42 is installed inside the first handheld opening 41 and is used for the operator to hold. The pressure block 44 is slidably connected to the inner wall of one side of the first handheld opening 41. The pressure block 44 is used to assist in fixing the hand on the grip 42. The pressure block 44 adopts an ergonomic arc design, and its inner side conforms to the natural curve of the back of the hand. It is also equipped with a flexible silicone pad, which can effectively distribute hand pressure and reduce fatigue caused by prolonged holding.

[0033] As a preferred option, the grip 42 is further equipped with an anti-slip pad 43. The anti-slip pad 43 is made of silicone and has a wavy anti-slip texture on its surface to increase the friction between the hand and the grip 42 and prevent slippage when holding it.

[0034] As a preferred embodiment, a side sliding groove 11 is provided on one inner wall of the opening 41 of the first hand-held part. The pressure block 44 is slidably connected in the side sliding groove 11. Four side slots 12 are equidistantly provided on one inner wall of the side sliding groove 11. An installation cylinder 13 is fixedly installed in the side slot 12. A slide rod 14 is slidably connected in the installation cylinder 13. One end of the slide rod 14 extends out of the installation cylinder 13. The extended end of the slide rod 14 is fixedly connected to the pressure block 44. A spring 15 is welded between the installation cylinder 13 and the pressure block 44. The spring 15 is sleeved on the outside of the slide rod 14. The elastic coefficient of the spring 15 is 2.5 N / mm, the free length is 30 mm, and the working stroke is 5-15 mm. While ensuring the adaptability of the pressure block 44 to different hand sizes, it provides a stable and comfortable clamping force.

[0035] As a preferred option, the front of the four side slots 12 is further opened to the front of the acoustic imager 1. A front cover 10 is installed on the front of the acoustic imager 1. The front cover 10 is used to cover the four side slots 12. The front cover 10 adopts a sliding design. The front cover 10 is pushed and pulled along a specific track to unlock, which makes it easy for the operator to quickly open or close the side slots 12. The inner side of the front cover 10 is provided with a sealing strip, which can effectively prevent dust, moisture and other impurities from entering the interior of the side slots 12, protect the internal components such as the mounting cylinder 13, the slide rod 14 and the spring 15 from contamination and corrosion, and ensure the long-term stable and reliable sliding adjustment function of the pressure block 44.

[0036] The specific types or circuit structures of the controllers for the electrical components mentioned in this application, as well as the circuit connection relationships between the electrical components and the accurate coordinated control of multiple power components, are all prior art. Therefore, the above content will not be elaborated upon in this application.

[0037] Working Principle: All electrical components in this application are externally connected to a power supply and control switch during use. After installation, first check the installation, fixation, and safety features of this utility model before use. During use, the user takes out the acoustic imaging device 1, presses the pressure block 44, increasing the space of the opening 41 of the first handheld part, facilitating hand insertion. The inserted hand grips the handle 42, at which point the pressure block 44 is engaged. Under the action of the spring 15, the pressure block 44 slides outward within the side sliding groove 11, fitting against the back of the hand, thus achieving a stable grip on the user's hand, improving stability during handheld use, and preventing hand shaking from affecting the imaging effect. Subsequently, the user opens the control screen 2 via the switch button 6 and starts the device through the control screen 2. The annular protective pad 5 provides cushioning protection in case the device is accidentally dropped, reducing damage to internal components. The camera 7 can be used to assist in locating and detecting the area, and the illumination lamp 8 provides illumination in low-light environments, ensuring that the microphone array 3 accurately captures sound signals. The microphone array 3 transmits the collected sound information to the internal processing unit. After analysis and processing, the information is displayed on the control screen 2 as an acoustic image. Users can intuitively determine the location and related characteristics of the sound source based on the image. After use, simply turn off the switch button 6 and disconnect the power.

[0038] Example 2: Please refer to Figures 5-6 A handheld acoustic imaging device, differing from Embodiment 1 in that the handheld component 4 includes: a second handheld opening 45 and four finger insertion slots 46. The acoustic imaging device 1 has a second handheld opening 45 and four finger insertion slots 46 on one side. The second handheld opening 45 is for the operator to insert and hold the device. The four finger insertion slots 46 are respectively adapted to the operator's index finger, middle finger, ring finger and little finger. Stable grip on the device is achieved by inserting fingers, further improving the firmness of single-hand grip and ease of operation. The spacing and depth of the finger insertion slots 46 are designed according to the physiological characteristics of the human hand to ensure that each finger is naturally extended and to avoid discomfort caused by excessive bending or squeezing.

[0039] In use, the user takes out the acoustic imaging device 1, inserts four fingers into the corresponding finger slots 46, and holds it at the opening 45 of the second hand-held part. Through the cooperation of the fingers with the finger slots 46 and the fit of the palm with the opening 45 of the second hand-held part, a stable grip on the acoustic imaging device 1 is achieved. Compared to Embodiment 1, this grip method better suits the gripping habits of some users, improving comfort and flexibility, and reducing the size of the acoustic imaging device 1's casing, making it suitable for small acoustic imaging devices. The remaining structure and usage are basically the same as in Embodiment 1, and will not be described again here.

[0040] The acoustic imager, microphone array, camera, and lighting in this case are existing technologies, and any acoustic imager, microphone array, camera, and lighting that meet the requirements of this case are acceptable.

[0041] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A handheld acoustic imaging device, comprising: An acoustic imager (1) is characterized in that a control screen (2) is installed on the front side of the acoustic imager (1), the control screen (2) is used to set parameters, display images and control functions of the acoustic imager (1); a handheld component (4) is provided on one side of the acoustic imager (1), the handheld component (4) is convenient for the operator to hold with one hand to improve the portability and flexibility of the equipment; a microphone array (3) is installed on the rear side of the acoustic imager (1), the microphone array (3) is used to collect sound signals of the area to be detected and convert them into electrical signals to generate and display acoustic images.

2. The handheld acoustic imaging device according to claim 1, characterized in that, An annular protective pad (5) is installed on the front side of the acoustic imager (1). The annular protective pad (5) is located on the outside of the control screen (2) and is used to protect the control screen (2).

3. The handheld acoustic imaging device according to claim 1, characterized in that, A switch button (6) is installed on one side of the control panel (2), and the switch button (6) is used to control the switch of the control panel (2).

4. The handheld acoustic imaging device according to claim 1, characterized in that, The microphone array (3) is mounted on a camera (7) in the middle, and the camera (7) is used to collect image information of the area to be detected; an illumination lamp (8) is mounted on the top of the microphone array (3), and the illumination lamp (8) is used to provide illumination.

5. The handheld acoustic imaging device according to claim 1, characterized in that, The acoustic imager (1) has a tripod connection port (9) at its bottom, which is used to connect to an external tripod.

6. The handheld acoustic imaging device according to claim 1, characterized in that, The handheld component (4) includes: a first handheld opening (41), a grip (42), and a pressure block (44). The acoustic imager (1) has a first handheld opening (41) on one side. The grip (42) is installed inside the first handheld opening (41). The grip (42) is used for the operator to hold. The pressure block (44) is slidably connected to the inner wall of one side of the first handheld opening (41). The pressure block (44) is used to assist in fixing the hand on the grip (42).

7. The handheld acoustic imaging device according to claim 6, characterized in that, The surface of the grip (42) is fitted with an anti-slip pad (43), which is used to increase the friction between the hand and the grip (42).

8. The handheld acoustic imaging device according to claim 6, characterized in that, A side sliding groove (11) is provided on one side inner wall of the first hand-held opening (41). The pressure block (44) is slidably connected in the side sliding groove (11). A plurality of side openings (12) are provided at equal intervals on one side inner wall of the side sliding groove (11). An installation cylinder (13) is fixedly installed in the side opening (12). A slide rod (14) is slidably connected in the installation cylinder (13). One end of the slide rod (14) extends out of the installation cylinder (13). The extended end of the slide rod (14) is fixedly connected to the pressure block (44). A spring (15) is welded between the installation cylinder (13) and the pressure block (44). The spring (15) is sleeved on the outside of the slide rod (14).

9. The handheld acoustic imaging device according to claim 8, characterized in that, The front sides of the multiple side slots (12) are opened to the front side of the acoustic imager (1), and a front cover (10) is installed on the front side of the acoustic imager (1) to cover the multiple side slots (12).

10. The handheld acoustic imaging device according to claim 1, characterized in that, The handheld component (4) includes a second handheld opening (45) and four finger slots (46). The acoustic imager (1) has a second handheld opening (45) and four finger slots (46) on one side. The second handheld opening (45) is for the operator to insert and hold the device. The four finger slots (46) are respectively adapted to the operator's index finger, middle finger, ring finger and little finger.

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