Portable engine leak detection device

By installing an electric actuator and a clamping block on the main body of the acoustic imager, the problem of cumbersome operation of two handheld devices is solved, and efficient and accurate positioning of engine leak detection is achieved.

CN224317246UActive Publication Date: 2026-06-02SHANDONG TONGYUAN ENGINE TESTING ENG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG TONGYUAN ENGINE TESTING ENG TECH CO LTD
Filing Date
2025-03-25
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing portable engine leak detection devices require users to hold two devices, resulting in cumbersome operation and low positioning efficiency.

Method used

A portable engine leak detection device was designed. By installing electric push rods, gears and clamping blocks on both sides of the acoustic imager body, the device can be fixed to equipment such as laser rangefinders, simplifying the operation process.

Benefits of technology

It improves the accuracy and reliability of detection, reduces the difficulty of operation, and makes the equipment easier to carry and use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a portable engine leak detection device, relating to the field of engine leak detection technology. The device includes an acoustic imager body with two symmetrically distributed electric actuators fixedly mounted on both sides. Gears are rotatably mounted on the middle of both sides of the acoustic imager body. Two diagonally distributed toothed plates are provided on one side of each gear, meshing with the gears. A movable block is fixedly mounted on one end of each of the four toothed plates. This application allows for clamping and fixing components on both sides of the acoustic imager body, enabling the device to be fixed when used in conjunction with other equipment such as a laser rangefinder. This avoids the need for the user to hold two devices to locate the leak, reducing operational difficulty and effectively improving measurement accuracy and reliability.
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Description

Technical Field

[0001] This utility model relates to the field of engine air leakage detection technology, specifically a portable engine air leakage detection device. Background Technology

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. The term "engine" can refer to both power generating devices and the entire machine including the power generating device.

[0003] When inspecting and maintaining an engine, leaks are typically checked, as air tightness directly affects engine efficiency. Therefore, air tightness checks are crucial. Traditional portable leak detection devices commonly include smoke detectors and acoustic imagers. When using an acoustic imager to detect engine leaks, it is often used in conjunction with other equipment such as a laser rangefinder to speed up leak location. The acoustic imager detects the engine leak, while the laser rangefinder measures the distance between the leak and the acoustic imager, thus more accurately and quickly pinpointing the leak. However, users usually need to hold two devices simultaneously, making the operation cumbersome. Furthermore, inconsistent hand movements can introduce errors, hindering efficient leak location. Utility Model Content

[0004] To address the issue that using an acoustic imaging device to detect engine leaks requires users to simultaneously hold two devices to accelerate leak location, which increases operational complexity, this invention aims to provide a portable engine leak detection device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a portable engine leak detection device, comprising an acoustic imager body, two symmetrically distributed electric push rods fixedly installed on both sides of the acoustic imager body, gears rotatably installed in the middle of both sides of the acoustic imager body, two diagonally distributed toothed plates on one side of each of the two gears, the toothed plates meshing with the gears, a movable block fixedly installed at one end of each of the four toothed plates, two symmetrically distributed mounting blocks fixedly installed on one side of each of the four movable blocks, a connecting block fixedly installed in the middle of the two movable blocks, and a driving end of the electric push rod fixedly installed in the middle of one side of each of the two connecting blocks, two symmetrically distributed clamping blocks slidingly clamped on both sides of the acoustic imager body, and the four clamping blocks slidingly penetrating the movable blocks.

[0006] Preferably, two sets of symmetrically distributed springs are fixedly installed in the middle of each of the four movable blocks, and a limit bead is fixedly installed on one side of each of the springs. Two sets of symmetrically distributed telescopic rods are fixedly installed in the middle of each of the movable blocks, and the telescopic ends of each telescopic rod are fixedly installed in the middle of one side of the limit bead.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This application can set clamping and fixing components on both sides of the acoustic imager body, so that when the acoustic imager body is used in conjunction with other devices such as laser rangefinders, the devices can be fixed and assembled on one side of the acoustic imager body. This avoids the need for the user to hold two devices to locate and find the leaks, reduces the difficulty of operation, and effectively improves the accuracy and reliability of measurement.

[0009] 2. This application can adjust the relative position of the clamping block and the acoustic imager body, so that when in use, the clamping block can be pulled out from inside the acoustic imager body to clamp and fix the equipment to be installed, and when not in use, it can be pushed back into the acoustic imager body, thereby reducing the volume of the acoustic imager body and making the equipment easier to carry and use. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the lighting structure of this utility model.

[0013] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0015] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of the movable block of this utility model.

[0017] Figure 7 This utility model Figure 6 Enlarged view of point C in the middle.

[0018] In the diagram: 1. Acoustic imager body; 2. Moving block; 21. Toothed plate; 22. Slider; 23. Gear; 24. Limiting block; 241. Mounting block; 25. Groove; 26. Electric push rod; 27. Connecting block; 3. Clamping block; 31. Spring; 32. Limiting bead; 33. Slot; 34. Telescopic rod; 4. Lighting lamp; 5. Positioning baffle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Example: Figure 1-7 As shown, this utility model provides a portable engine leak detection device, including an acoustic imager body 1. By setting the acoustic imager body 1, this device utilizes the principle of ultrasound to detect gas leaks in various equipment or environments. When gas escapes from a leak point in a pipe, container, etc., turbulence is generated, which in turn emits ultrasonic waves. The device receives and analyzes these ultrasonic signals, converting them into a visual image, allowing the user to intuitively locate the leak. Two symmetrically distributed electric actuators 26 are fixedly installed on both sides of the acoustic imager body 1, and the middle of both sides of the acoustic imager body 1... Each of the four gears 23 is rotatably mounted. Each of the four gears 23 has two diagonally distributed toothed plates 21 on one side. The toothed plates 21 and the gears 23 mesh with each other. Each of the four toothed plates 21 has a movable block 2 fixedly mounted on one end. Each of the four movable blocks 2 has two symmetrically distributed mounting blocks 241 fixedly mounted on one side. A connecting block 27 is fixedly mounted in the middle of the two movable blocks 2. The middle of one side of the two connecting blocks 27 is fixedly mounted on the drive end of the electric push rod 26. Each of the two sides of the acoustic imaging device body 1 has two symmetrically distributed clamping blocks 3 slidingly clamped. All four clamping blocks 3 slide through the movable blocks 2.

[0021] Two sets of symmetrically distributed springs 31 are fixedly installed in the middle of each of the four movable blocks 2. Limiting beads 32 are fixedly installed on one side of each of the multiple springs 31. Two sets of symmetrically distributed telescopic rods 34 are fixedly installed in the middle of each of the multiple movable blocks 2. The telescopic ends of the multiple telescopic rods 34 are fixedly installed in the middle of one side of the limiting beads 32.

[0022] Each of the four toothed plates 21 has a slider 22 fixedly installed on the middle of one side. The four sliders 22 are slidably locked on both sides of the acoustic imaging device body 1. By setting the sliders 22, the toothed plates 21 can be limited and fixed to ensure stable meshing between the toothed plates 21 and the gears 23.

[0023] Two symmetrically distributed limiting blocks 24 are fixedly installed on both sides of the acoustic imaging device body 1. Multiple mounting blocks 241 are slidably locked on the outer surface of the limiting blocks 24. By setting the limiting blocks 24, the moving block 2 can be limited and fixed, ensuring that the moving block 2 can only move back and forth along the surface of the limiting block 24 under the drive of the electric push rod 26.

[0024] The acoustic imaging device body 1 has grooves 25 on both sides of the lower part, and two connecting blocks 27 are slidably locked in the middle of the grooves 25. By setting the grooves 25 and the connecting blocks 27 sliding in the middle of the grooves 25, the moving block 2 is moved.

[0025] Two sets of symmetrically distributed slots 33 are provided on both sides of the multiple clamping blocks 3. Multiple limiting beads 32 are slidably locked inside the slots 33. By setting the slots 33, the clamping blocks 3 can be positioned and limited by locking the limiting beads 32 in the slots 33 at different positions.

[0026] Two symmetrically distributed lights 4 are installed on one side of the upper part of the acoustic imaging device body 1. By setting the lights 4, the surface of the engine can be illuminated when searching for leaks, making it convenient for users to view.

[0027] Positioning baffles 5 are fixedly installed on both sides of the acoustic imager body 1. By setting the positioning baffles 5, the laser rangefinder and the acoustic imager body 1 can be kept on the same vertical plane, thereby ensuring that the measured distance is more accurate.

[0028] Working principle: In actual use, when using the acoustic imager body 1 to detect engine leaks, the operator holds the acoustic imager body 1 with the back facing the engine to be tested. By starting the device, the operator can intuitively see the location and degree of the leak on the front screen of the device. The device can locate and confirm the engine leak. In addition, during use, it is sometimes used in conjunction with other devices such as laser rangefinders to measure the distance between the leak point and the acoustic imager body 1, thereby finding the leak point more quickly and accurately.

[0029] When installing the laser rangefinder, it is placed on one side of the acoustic imager body 1, so that one side of the laser rangefinder contacts the positioning baffle 5. At this time, the clamping block 3 is pulled to slide out from the inside of the acoustic imager body 1. Under the action of the spring 31, the limiting bead 32 slides and is locked in the slot 33 at the other end of the clamping block 3, thus completing the fixing of the clamping block 3. At this time, driven by the electric push rod 26, one of the moving blocks 2 on one side moves towards the middle, thereby causing the toothed plate 21 on one side to slide, thereby driving the meshing gear 23 to rotate, that is, driving the toothed plate 21 on the other side to move, so that the two toothed plates 21 move relative to each other, that is, driving the two moving blocks 2 to move relative to each other, thereby bringing the two clamping blocks 3 closer together, thus clamping and fixing the laser rangefinder placed between the two clamping blocks 3.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A portable engine leak detection apparatus comprising a sound wave imager body (1), characterized in that: Two symmetrically distributed electric push rods (26) are fixedly installed on both sides of the acoustic imager body (1). Gears (23) are rotatably installed in the middle of both sides of the acoustic imager body (1). Two diagonally distributed toothed plates (21) are provided on one side of each of the two gears (23). The toothed plates (21) and the gears (23) mesh with each other. A moving block (2) is fixedly installed at one end of each of the four toothed plates (21). Two symmetrically distributed mounting blocks (241) are fixedly installed on one side of each of the four moving blocks (2). A connecting block (27) is fixedly installed in the middle of the two moving blocks (2). The middle of one side of the two connecting blocks (27) is fixedly installed at the driving end of the electric push rod (26). Two symmetrically distributed clamping blocks (3) are slidably clamped on both sides of the acoustic imager body (1). The four clamping blocks (3) slide through the moving blocks (2).

2. The portable engine leak detection apparatus of claim 1, wherein, Two sets of symmetrically distributed springs (31) are fixedly installed in the middle of each of the four movable blocks (2). Limiting beads (32) are fixedly installed on one side of each of the multiple springs (31). Two sets of symmetrically distributed telescopic rods (34) are fixedly installed in the middle of each of the multiple movable blocks (2). The telescopic ends of the multiple telescopic rods (34) are fixedly installed in the middle of one side of the limiting beads (32).

3. The portable engine leak detection apparatus of claim 1, wherein, Each of the four toothed plates (21) has a slider (22) fixedly installed on the middle of one side, and the four sliders (22) are slidably locked on both sides of the acoustic imaging device body (1).

4. The portable engine leak detection apparatus of claim 1, wherein, Two symmetrically distributed limiting blocks (24) are fixedly installed on both sides of the acoustic imaging device body (1), and multiple mounting blocks (241) are slidably locked on the outer surface of the limiting blocks (24).

5. The portable engine leak detection apparatus of claim 1, wherein, The lower sides of the acoustic imaging device body (1) are provided with grooves (25), and two connecting blocks (27) are slidably locked in the middle of the grooves (25).

6. The portable engine leak detection apparatus of claim 2, wherein, Two sets of symmetrically distributed slots (33) are provided on both sides of the multiple clamping blocks (3), and multiple limiting beads (32) are slidably locked inside the slots (33).

7. The portable engine leak detection apparatus of claim 1, wherein, Two symmetrically distributed lighting lamps (4) are installed on one side of the upper part of the acoustic imaging device body (1).

8. The portable engine leak detection apparatus of claim 1, wherein, Positioning baffles (5) are fixedly installed on both sides of the acoustic imaging device body (1).