Handheld leakage listening instrument

Abstract

The invention relates to the technical field of leakage listening instruments, and discloses a handheld leakage listening instrument which comprises a main body, and the side wall of the main body is connected with a connecting line in a buckled mode. When the rubber sleeve and the inclined ring adapt to an uneven road surface of the ground, the flexible contact can cover the fluctuation of the ground, the situation that the sensor is suspended or the pressure is uneven due to local protrusion can be avoided, meanwhile, the situation that external environment noise is transmitted to the sensor can be prevented, the unevenness of the sensor due to the fluctuation of the ground is reduced, and the service life of the sensor is prolonged. Therefore, the detection efficiency of the leakage detection and the authenticity of the detection signal are improved, and the possibility of misjudgment is reduced.

Description

Technical Field

[0001] This invention relates to the field of leak detector technology, specifically a handheld leak detector. Background Technology

[0002] A ground leak detector, also known as a ground leak detector, mainly consists of three parts: a microphone, a signal processor, and headphones. Its working principle is to use the ground microphone to collect vibration signals caused by leaks, convert these vibration signals into electrical signals, and send them to the signal processor for amplification, filtering, and other processing. Finally, the audio signal is sent to the headphones, and the video signals, such as graphics, waveforms, or numbers, are displayed on the screen to help pinpoint the leak location.

[0003] When using a leak detector, the operator typically places the instrument, which is equipped with a triangular shield, on the ground. The sensor inside the instrument detects sound or vibration signals from the ground to achieve the purpose of leak detection. However, when the instrument is placed on uneven ground, the sensor inside the detector may not make enough contact with the ground, resulting in weak leak signal acquisition. This affects the accuracy and efficiency of the leak detection. Summary of the Invention

[0004] The purpose of this invention is to provide a handheld leak detector to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention is a handheld leak detector, comprising a main body, a connecting wire snapped onto the side wall of the main body, and further comprising;

[0007] The movable mechanism, located at the bottom of the main body, is used to reduce the contact distance with the ground when listening for leaks;

[0008] The auxiliary mechanism is installed on the side wall of the movable mechanism to prevent the measuring device from being bumped or scratched during measurement.

[0009] When the ground is being tested for leaks, the moving mechanism allows the detection equipment to adapt to the unevenness of the ground while reducing the contact distance between the internal detector and the ground. At the same time, the auxiliary mechanism can prevent the detector from being bumped or scratched.

[0010] Furthermore, the main body includes:

[0011] The detection component is installed on the side wall of the connecting cable;

[0012] A rotating assembly is installed inside the detection assembly.

[0013] Auxiliary components are installed on the side wall of the rotating component.

[0014] Furthermore, the moving mechanism includes three movable rods installed inside the main body, and the moving mechanism also includes:

[0015] The push component is installed on the side wall of the moving rod;

[0016] Deformation component, the deformation component is installed on the side wall of the deformation component.

[0017] Furthermore, the auxiliary mechanism includes several sector-shaped plates disposed inside the rotating assembly, and the auxiliary mechanism also includes:

[0018] A connecting component is installed on top of the sector plate;

[0019] A tension component is installed on the side wall of the connecting component.

[0020] Furthermore, the detection component includes a probe that is snapped onto the end of the connecting wire away from the main body, the probe having an annular groove on the top inner wall and three sliding grooves on the bottom inner wall.

[0021] The bottom of the probe has two annular grooves.

[0022] The auxiliary components include a sensor that is slidably connected to the inner wall of the top of the probe, a threaded sleeve that is fixedly connected to the outer surface of the sensor, a return spring that is fixedly connected to the top of the threaded sleeve, and the top of the return spring that is fixedly connected to the inner wall of the bottom of the probe.

[0023] Three flexible hoses are fixedly connected to the outer surface of the annular groove.

[0024] Furthermore, the rotating assembly includes a connecting ring threaded onto the outer surface of the threaded sleeve, and the connecting ring has three hollow cavities inside;

[0025] Three rotating rods are slidably connected to the outer surface of the connecting ring, and three inclined blocks are fixedly connected to the outer surface of the connecting ring;

[0026] The movable rod is slidably connected inside the sliding groove, and a linear spring is fixedly connected to the side wall of the movable rod. The end of the linear spring away from the movable rod is fixedly connected to the side wall of the sliding groove.

[0027] The actuating component includes a connecting rod rotatably connected to the side of the moving rod away from the hollow cavity, with the end of the connecting rod away from the moving rod sliding through the interior of the annular groove 2;

[0028] The ends of the three connecting rods furthest from the moving rod are rotatably connected to sliding rings.

[0029] Furthermore, the deformation component includes a rubber sleeve fixedly connected to the bottom of the sliding ring, and two inclined rings are fixedly connected inside the rubber sleeve;

[0030] A flexible layer is fixedly connected to the bottom of the rubber sleeve, and the flexible layer is connected to the rubber sleeve.

[0031] The end of the flexible hose furthest from the connecting ring is fixedly connected to the sliding ring, and the rubber sleeve is connected to the annular groove through the flexible hose.

[0032] Furthermore, the sector-shaped plate is slidably connected inside the hollow cavity;

[0033] A perforated cylinder is fixedly connected to the top of the sector plate, and a hollow cylinder is slidably connected to the outer surface of the perforated cylinder. A sector plate is fixedly connected to the outer surface of the hollow cylinder.

[0034] Furthermore, the top of the hollow cylinder slides through to the top outer wall of the connecting ring, and the tops of the three hollow cylinders are fixedly connected to a fixing ring, and the outer surface of the fixing ring is fixedly connected to a sealing ring.

[0035] A tension spring is fixedly connected to the bottom of the fixing ring on the outer surface of the hollow cylinder, and the bottom of the tension spring is fixedly connected to the top of the connecting ring.

[0036] Furthermore, the tensioning assembly includes three hollow frames rotatably connected to the bottom of the fixed ring, the hollow frames being slidably connected to the outer surface of the inclined block, and an arc-shaped plate being rotatably connected to the end of the hollow frame away from the fixed ring;

[0037] An airbag is fixedly connected between the three arc-shaped plates. The top of the airbag is fixedly connected to the bottom of the connecting ring. Three flexible tubes are fixedly connected to the outer surface of the airbag.

[0038] The end of the flexible tube furthest from the airbag is fixedly connected to the outside of the connecting ring, and the hollow cavity is connected to the inside of the airbag through the flexible tube.

[0039] The present invention has the following beneficial effects:

[0040] 1. This invention, through the deformation component and auxiliary components, reduces the contact distance between the sensor and the ground when the threaded sleeve and sensor slide downwards, ensuring stable and sufficient pressure when the sensor contacts the ground. Simultaneously, when the inclined ring at the bottom of the rubber sleeve contacts the ground, the inclined ring and rubber sleeve can adapt to uneven ground and form a barrier around the sensor. When the rubber sleeve and inclined ring adapt to uneven road surfaces, this flexible contact covers the undulations of the ground, preventing the sensor from being suspended or experiencing uneven pressure due to local protrusions. It also blocks external environmental noise from entering the sensor, reducing the possibility of weak sensor signal acquisition due to insufficient contact or pressure caused by uneven ground, thus improving the detection efficiency and accuracy of the detection signal and reducing the possibility of misjudgment.

[0041] 2. This invention, through the deformation component, ensures that when most of the gas remains inside the rubber sleeve, the rubber sleeve is in a filled and taut state, providing it with a certain degree of support. Simultaneously, when the flexible layer is in a semi-expanded state, it can adapt to the undulating shape of the ground. Due to the flexibility of the rubber sleeve and the flexible layer, the filling and retention of gas inside the rubber sleeve reduces the possibility of deformation, displacement, or collapse of the rubber sleeve when the probe moves downward after contact with the ground. This ensures the stability of the tilting ring entering the annular groove II while providing a stable driving force to the connecting ring, improving the stability of the sensor's downward movement and further enhancing the sensor's detection efficiency and stability during leak detection.

[0042] 3. In this invention, through the pulling component and auxiliary component, when the gas is compressed, the gas will enter the airbag through the flexible tube. When the airflow inside the three hollow cavities enters the interior of the airbag, the airbag will expand. When the airbag expands, the expanded airbag will provide a flexible buffer when the sensor slides down to reduce the distance from the ground, thereby reducing the possibility of the sensor sliding down and causing collision damage to the ground, improving the integrity of the sensor surface during detection and the detection quality during subsequent hearing leak detection.

[0043] 4. In this invention, by means of a tensioning component, when the airbag is subjected to an upward force in three directions, it can be kept in an undeformable state when in contact with the ground. At this time, the surface of the airbag will be in a taut state after being stretched. By making the surface of the airbag taut, the resonance between the airbag and the ground can be reduced when the airbag is in contact with the ground for detection. This reduces the possibility of the resonance between the airbag and the ground amplifying the vibration signal, which may cause the sensor to shake or misjudge. This further enhances the stability of the sensor during leakage detection and improves the detection efficiency and continuity of subsequent leakage signal detection.

[0044] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0048] Figure 3 This is a schematic diagram of the main body of the invention;

[0049] Figure 4 This is a schematic diagram of the internal structure of the detection component of the present invention;

[0050] Figure 5 This is a schematic diagram of the auxiliary components of the present invention;

[0051] Figure 6 This is a schematic diagram of the driving component of the present invention;

[0052] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0053] Figure 8 This is a bottom view of the rotating component of the present invention;

[0054] Figure 9 This is a schematic diagram of the connecting components of the present invention;

[0055] Figure 10 This is an exploded view of the auxiliary mechanism of the present invention.

[0056] The attached diagram lists the components represented by each number as follows:

[0057] In the diagram: 1. Main body; 101. Connecting line; 11. Detection component; 111. Probe; 112. Annular groove one; 113. Annular groove two; 114. Sliding groove; 12. Rotating component; 121. Connecting ring; 122. Hollow cavity; 123. Rotating rod; 13. Auxiliary component; 131. Sensor; 132. Threaded sleeve; 2. Movable mechanism; 201. Moving rod; 21. Pushing component; 211. Connecting rod; 212. Sliding ring; 22. Deformation component; 221. Rubber sleeve; 222. Inclined ring; 223. Flexible layer; 3. Auxiliary mechanism; 301. Fan-shaped plate; 31. Connecting component; 311. Perforated cylinder; 312. Hollow cylinder; 313. Fixing ring; 32. Pulling component; 321. Hollow frame; 322. Arc plate; 323. Airbag; 324. Flexible tube. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Please see Figure 1 - Figure 10 As shown, the present invention is a handheld leak detector, including a main body 1, a connecting wire 101 snapped onto the side wall of the main body 1, and also including;

[0060] Movable mechanism 2 is located at the bottom of the main body 1 and is used to reduce the contact distance with the ground when listening for leaks.

[0061] Auxiliary mechanism 3 is installed on the side wall of the movable mechanism 2 to prevent the measuring device from being bumped or scratched during measurement;

[0062] When the ground is being tested for leaks, the moving mechanism 2 can adapt the detection equipment to the unevenness of the ground while reducing the contact distance between the internal detector and the ground. Meanwhile, the auxiliary mechanism 3 can prevent the detector from being bumped or scratched.

[0063] Entity 1 includes:

[0064] Detection component 11 is installed on the side wall of connecting line 101;

[0065] Rotating component 12 is installed inside detection component 11;

[0066] Auxiliary component 13 is installed on the side wall of rotating component 12.

[0067] The movable mechanism 2 includes three movable rods 201 installed inside the main body 1. The movable mechanism 2 also includes:

[0068] Push component 21 is installed on the side wall of the moving rod 201;

[0069] Deformation component 22 is installed on the side wall of deformation component 22.

[0070] The auxiliary mechanism 3 includes several sector plates 301 disposed inside the rotating assembly 12, and the auxiliary mechanism 3 also includes:

[0071] Connecting component 31 is installed on the top of sector plate 301;

[0072] The tension component 32 is installed on the side wall of the connecting component 31.

[0073] The detection assembly 11 includes a probe 111 that is snapped onto the end of the connecting line 101 away from the main body 1. The probe 111 has an annular groove 112 on the top inner wall and three sliding grooves 114 on the bottom inner wall.

[0074] The bottom of the probe 111 is provided with an annular groove 113;

[0075] The auxiliary component 13 includes a sensor 131 that is slidably connected to the inner wall of the top of the probe 111. A threaded sleeve 132 is fixedly connected to the outer surface of the sensor 131. A reset spring is fixedly connected to the top of the threaded sleeve 132. The top of the reset spring is fixedly connected to the inner wall of the bottom of the probe 111.

[0076] Three flexible hoses are fixedly connected to the outer surface of the annular groove 112. When the connecting ring 121 is connected to the threaded sleeve 132, the staff will place the probe 111 on the ground. After that, the staff will connect the earphone to the main body 1, put on the earphone and start the main body 1. When the main body 1 is working, it will activate the sensor 131.

[0077] The rotating assembly 12 includes a connecting ring 121 threadedly connected to the outer surface of the threaded sleeve 132, and the connecting ring 121 has three hollow cavities 122 inside;

[0078] Three rotating rods 123 are slidably connected to the outer surface of the connecting ring 121, and three inclined blocks are fixedly connected to the outer surface of the connecting ring 121.

[0079] The movable rod 201 is slidably connected inside the sliding groove 114. A linear spring is fixedly connected to the side wall of the movable rod 201. The end of the linear spring away from the movable rod 201 is fixedly connected to the side wall of the sliding groove 114.

[0080] The pushing component 21 includes a connecting rod 211 rotatably connected to the side of the moving rod 201 away from the hollow cavity 122, and the end of the connecting rod 211 away from the moving rod 201 slides through into the interior of the annular groove 113.

[0081] The three connecting rods 211 are rotatably connected to a sliding ring 212 at the end away from the moving rod 201. When the connecting ring 121 slides upward, the fixing ring 313 will be inserted into the annular groove 112. At this time, the sealing ring on the outer surface of the fixing ring 313 will seal the fixing ring 313 and the annular groove 112.

[0082] Deformation component 22 includes a rubber sleeve 221 fixedly connected to the bottom of sliding ring 212, and two inclined rings 222 fixedly connected inside the rubber sleeve 221;

[0083] A flexible layer 223 is fixedly connected to the bottom of the rubber sleeve 221, and the flexible layer 223 is connected to the rubber sleeve 221.

[0084] The end of the flexible hose away from the connecting ring 121 is fixedly connected to the sliding ring 212. The rubber sleeve 221 is connected to the annular groove 112 through the flexible hose. When the probe 111 slides downward under its own weight, the rubber sleeve 221 and the inclined ring 222 slide upward inside the annular groove 113. When the rubber sleeve 221 pushes the sliding ring 212 to slide upward, the sliding ring 212 will push the moving rod 201 to slide in the direction of the connecting ring 121 through the connecting rod 211.

[0085] The sector plate 301 is slidably connected to the inside of the hollow cavity 122;

[0086] A perforated cylinder 311 is fixedly connected to the top of the sector plate 301. A hollow cylinder 312 is slidably connected to the outer surface of the perforated cylinder 311. A sector plate 2 is fixedly connected to the outer surface of the hollow cylinder 312.

[0087] The top of the hollow cylinder 312 slides through to the top outer wall of the connecting ring 121, and the tops of the three hollow cylinders 312 are fixedly connected to a fixing ring 313, and a sealing ring is fixedly connected to the outer surface of the fixing ring 313.

[0088] A tension spring is fixedly connected to the bottom of the fixing ring 313 on the outer surface of the hollow cylinder 312. The bottom of the tension spring is fixedly connected to the top of the connecting ring 121. When the fixing ring 313 slides upward, it will drive the hollow cylinder 312 and the sector plate 2 to slide synchronously. When the sector plate 2 slides upward, it will compress the gas between its top and the hollow cavity 122.

[0089] The tensioning assembly 32 includes three hollow frames 321 rotatably connected to the bottom of the fixed ring 313. The hollow frames 321 are slidably connected to the outer surface of the inclined block. An arc plate 322 is rotatably connected to the end of the hollow frame 321 away from the fixed ring 313.

[0090] An airbag 323 is fixedly connected between the three arc-shaped plates 322. The top of the airbag 323 is fixedly connected to the bottom of the connecting ring 121. Three flexible tubes 324 are fixedly connected to the outer surface of the airbag 323.

[0091] The end of the flexible tube 324 away from the airbag 323 is fixedly connected to the outside of the connecting ring 121. The hollow cavity 122 is connected to the inside of the airbag 323 through the flexible tube 324. When the airflow inside the three hollow cavities 122 enters the inside of the airbag 323, it will cause the airbag 323 to inflate. When the airbag 323 inflates, the inflated airbag 323 will provide a flexible buffer when the sensor 131 slides down to reduce the distance from the ground.

[0092] In use, the operator first screws the connecting ring 121 onto the outside of the threaded sleeve 132. When the operator screws the connecting ring 121, the connecting ring 121 will slide upward on the surface of the threaded sleeve 132. When the connecting ring 121 is connected to the threaded sleeve 132, the operator places the probe 111 on the ground. Then, the operator connects the earphone to the main body 1, puts on the earphone, and starts the main body 1. When the main body 1 is working, it will activate the sensor 131. At this time, the sensor 131 will detect the vibration and sound signals in the ground and transmit the detection signals to the main body 1 through the connecting line 101, thereby achieving the purpose of listening to the ground.

[0093] When the connecting ring 121 slides upward, the fixing ring 313 inserts into the annular groove 112. At this time, the sealing ring on the outer surface of the fixing ring 313 seals the space between the fixing ring 313 and the annular groove 112. Simultaneously, as the connecting ring 121 slides upward, it drives the three rotating rods 123 on its outer surface to slide synchronously. Because the rotating rods 123 are inclined, when they slide upward with the connecting ring 121, the inclined surface at the top of the rotating rods 123 presses against the moving rod 201. After being pressed, the moving rod 201 slides inside the sliding groove 114 and compresses the linear spring on its surface. Simultaneously, as the moving rod 201 slides, its movement is transmitted through the connecting rod 21... A downward pushing force is generated on the sliding ring 212. At this time, the sliding ring 212 will drive the rubber sleeve 221 to slide downward inside the annular groove 113, so that the rubber sleeve 221 extends out of the bottom of the probe 111. Then, when the probe 111 is placed on the ground for leakage detection, the rubber sleeve 221 and the bottom inclined ring 222 will first contact the ground. At this time, the probe 111 will slide downward under its own weight. Since the bottom of the rubber sleeve 221 and the inclined ring 222 contacts the ground first, when the probe 111 slides downward under its own weight, the rubber sleeve 221 and the inclined ring 222 slide upward inside the annular groove 113. When the rubber sleeve 221 pushes the sliding ring 212 to slide upward, the sliding ring 212 will be pushed by the connecting rod 211. The movable rod 201 slides towards the connecting ring 121. As the movable rod 201 slides, its bottom presses against the side wall of the rotating rod 123. When the side walls of the three rotating rods 123 are pressed, the rotating rods 123 slide against the side wall of the connecting ring 121, simultaneously causing the connecting ring 121 to slide downwards. Since the connecting ring 121 is threaded onto the outer surface of the threaded sleeve 132, when the connecting ring 121 slides downwards, it causes the sensor 131 and the threaded sleeve 132 to slide synchronously. At this time, the return spring at the top of the threaded sleeve 132 is stretched. When the threaded sleeve 132 and the sensor 131 slide downwards, the contact distance between the sensor 131 and the ground is reduced, ensuring the sensor 131 remains in contact with the ground. The pressure during surface contact is stable and sufficient. Simultaneously, when the inclined ring 222 at the bottom of the rubber sleeve 221 contacts the ground, the inclined ring 222 and the rubber sleeve 221 can adapt to uneven ground. They also form a barrier around the sensor 131. When the rubber sleeve 221 and the inclined ring 222 adapt to uneven ground, this flexible contact covers the undulations, preventing the sensor 131 from being suspended or experiencing uneven pressure due to localized protrusions. Furthermore, it blocks external environmental noise from entering the sensor 131, reducing the likelihood of weak sound leakage signal acquisition due to insufficient contact or pressure caused by uneven ground. This improves the detection efficiency and the accuracy of the detection signal.Reduce the possibility of misjudgment.

[0094] When the operator connects the connecting ring 121 to the threaded sleeve 132 via a threaded connection, the upward sliding of the connecting ring 121 on the surface of the threaded sleeve 132 will connect the sensor 131 to the annular groove 112. At this time, the connecting ring 121 will be connected to the interior of the hollow cavity 122 through the hollow cylinder 312 and the porous cylinder 311. Then, when the connecting ring 121 continues to slide upward, the fixing ring 313 will be squeezed by the annular groove 112, causing the fixing ring 313 to drive the hollow cylinder 312 to slide downward. When 312 slides downwards, the hollow cylinder 312 will drive the sector plate 2 to slide downwards synchronously. When the sector plate 2 slides downwards, the sliding of the sector plate 2 will compress the gas inside the hollow cavity 122. After the gas inside the hollow cavity 122 is compressed, the compressed gas will enter the interior of the annular groove 112 through the porous cylinder 311 and the hollow cylinder 312. At the same time, the compressed airflow will enter the interior of the rubber sleeve 221 through the annular groove 112 and the three flexible hoses. Because the two inclined rings 222 inside the rubber sleeve 221 will form inside the rubber sleeve 221 The conical channel, when airflow enters the rubber sleeve 221, causes most of the airflow to be blocked and trapped inside the sleeve. A small portion of the airflow passes through the conical channel and enters the flexible layer 223, causing the flexible layer 223 to be in a semi-expanded state. When most of the airflow remains trapped inside the rubber sleeve 221, it is in a filled and taut state, providing support. Simultaneously, when the flexible layer 223 is in a semi-expanded state, it can adapt to the undulating shape of the ground. Because of the rubber… The rubber sleeve 221 and the flexible layer 223 have a certain degree of flexibility. By filling and retaining gas inside the rubber sleeve 221, the deformation, displacement or collapse of the rubber sleeve 221 when the probe 111 moves down can be reduced due to the flexibility of the rubber sleeve 221 after it comes into contact with the ground. This ensures the stability of the tilting ring 222 entering the annular groove 113 while providing a stable pushing force to the connecting ring 121. This improves the stability of the sensor 131 as it slides down and further improves the detection efficiency and stability of the sensor 131 when listening for leaks.

[0095] When the connecting ring 121 slides downward, the tension spring at the bottom of the fixed ring 313 will push the fixed ring 313 upward during the downward sliding of the connecting ring 121. When the fixed ring 313 slides upward, it will drive the hollow cylinder 312 and the sector plate 2 to slide synchronously. When the sector plate 2 slides upward, it will compress the gas between its top and the hollow cavity 122. When the gas is compressed, the gas will enter the airbag 323 through the flexible tube 324. When the airflow inside the three hollow cavities 122 enters the interior of the airbag 323, it will cause the airbag 323 to expand. When the airbag 323 expands, the expanded airbag 323 will provide a flexible buffer when the sensor 131 slides downward to reduce the distance from the ground, thereby reducing the possibility of the sensor 131 falling down and causing collision damage to the ground, improving the integrity of the sensor 131 surface during detection and the detection quality during subsequent listening leak detection.

[0096] When the fixed ring 313 slides upward, the sliding of the fixed ring 313 will drive the three hollow frames 321 connected to it to slide synchronously. When the hollow frame 321 slides upward, the side wall of the hollow frame 321 will slide obliquely upward under the guidance of the inclined surface on the inclined block. When the hollow frame 321 slides obliquely upward, the sliding of the hollow frame 321 will generate an oblique upward pulling force on the surface of the airbag 323 through the arc plate 322. When the airbag 323 is subjected to oblique upward pulling forces in three directions, it can make the airbag 323 contact the ground. When touched, the airbag 323 is in an undeformable state. At this time, the surface of the airbag 323 will be taut after being stretched. By making the surface of the airbag 323 taut, the resonance between the airbag 323 and the ground can be reduced when the airbag 323 is in contact with the ground for detection. This reduces the possibility of the resonance between the airbag 323 and the ground amplifying the vibration signal, which may cause the sensor 131 to shake or misjudge. This further enhances the stability of the sensor 131 in the detection of leakage, while improving the detection efficiency and continuity of subsequent leakage signal detection.

[0097] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A handheld leak detector, comprising a main body (1), wherein a connecting wire (101) is snap-connected to the side wall of the main body (1), characterized in that, Also includes; The active mechanism (2) is located at the bottom of the main body (1) and is used to reduce the contact distance with the ground when listening for leaks; Auxiliary mechanism (3) is installed on the side wall of the movable mechanism (2) to prevent the measuring device from being bumped or scratched during measurement; When the ground is being tested for leaks, the active mechanism (2) can adapt the detection equipment to the unevenness of the ground while reducing the contact distance between the internal detector and the ground. Meanwhile, the auxiliary mechanism (3) can prevent the detector from being bumped or scratched.

2. The handheld leak detector according to claim 1, characterized in that: The main body (1) includes: A detection component (11) is installed on the side wall of the connecting line (101); A rotating assembly (12) is installed inside the detection assembly (11); An auxiliary component (13) is mounted on the side wall of the rotating component (12).

3. A handheld leak detector according to claim 2, characterized in that: The movable mechanism (2) includes three movable rods (201) installed inside the main body (1), and the movable mechanism (2) also includes: A pushing component (21) is mounted on the side wall of the moving rod (201); Deformation component (22), wherein the deformation component (22) is installed on the side wall of the deformation component (22).

4. A handheld leak detector according to claim 3, characterized in that: The auxiliary mechanism (3) includes several sector plates (301) disposed inside the rotating assembly (12), and the auxiliary mechanism (3) further includes: A connecting component (31) is mounted on top of the sector plate (301); A tensioning component (32) is installed on the side wall of the connecting component (31).

5. A handheld leak detector according to claim 4, characterized in that: The detection component (11) includes a probe (111) that is snapped onto the end of the connecting line (101) away from the main body (1). The probe (111) has an annular groove (112) on the top inner wall and three sliding grooves (114) on the bottom inner wall. The bottom of the probe (111) is provided with an annular groove (113). The auxiliary component (13) includes a sensor (131) that is slidably connected to the inner wall of the top of the probe (111). A threaded sleeve (132) is fixedly connected to the outer surface of the sensor (131). A reset spring is fixedly connected to the top of the threaded sleeve (132). The top of the reset spring is fixedly connected to the inner wall of the bottom of the probe (111). Three flexible hoses are fixedly connected to the outer surface of the annular groove (112).

6. A handheld leak detector according to claim 5, characterized in that: The rotating assembly (12) includes a connecting ring (121) threaded to the outer surface of the threaded sleeve (132), and the connecting ring (121) has three hollow cavities (122) inside. The outer surface of the connecting ring (121) is slidably connected to three rotating rods (123), and the outer surface of the connecting ring (121) is fixedly connected to three inclined blocks; The movable rod (201) is slidably connected inside the sliding groove (114), and a linear spring is fixedly connected to the side wall of the movable rod (201). The end of the linear spring away from the movable rod (201) is fixedly connected to the side wall of the sliding groove (114). The pushing assembly (21) includes a connecting rod (211) rotatably connected to the side of the moving rod (201) away from the hollow cavity (122), and the end of the connecting rod (211) away from the moving rod (201) slides through into the interior of the annular groove (113); The three connecting rods (211) are rotatably connected to a sliding ring (212) at the end away from the moving rod (201).

7. A handheld leak detector according to claim 6, characterized in that: The deformation component (22) includes a rubber sleeve (221) fixedly connected to the bottom of the sliding ring (212), and two inclined rings (222) are fixedly connected inside the rubber sleeve (221). A flexible layer (223) is fixedly connected to the bottom of the rubber sleeve (221), and the flexible layer (223) and the rubber sleeve (221) are connected in a communication manner; The end of the flexible hose away from the connecting ring (121) is fixedly connected to the sliding ring (212), and the rubber sleeve (221) is connected to the annular groove (112) through the flexible hose.

8. A handheld leak detector according to claim 7, characterized in that: The sector plate (301) is slidably connected to the inside of the hollow cavity (122); The top of the sector plate (301) is fixedly connected to a perforated cylinder (311), and a hollow cylinder (312) is slidably connected to the outer surface of the perforated cylinder (311). The outer surface of the hollow cylinder (312) is fixedly connected to a sector plate.

9. A handheld leak detector according to claim 8, characterized in that: The top of the hollow cylinder (312) slides through to the top outer wall of the connecting ring (121), and the tops of the three hollow cylinders (312) are fixedly connected to a fixing ring (313), and a sealing ring is fixedly connected to the outer surface of the fixing ring (313). A tension spring is fixedly connected to the bottom of the fixing ring (313) located on the outer surface of the hollow cylinder (312), and the bottom of the tension spring is fixedly connected to the top of the connecting ring (121).

10. A handheld leak detector according to claim 9, characterized in that: The pulling assembly (32) includes three hollow frames (321) rotatably connected to the bottom of the fixed ring (313), the hollow frames (321) being slidably connected to the outer surface of the inclined block, and an arc plate (322) being rotatably connected to one end of the hollow frame (321) away from the fixed ring (313). An airbag (323) is fixedly connected between the three arc-shaped plates (322). The top of the airbag (323) is fixedly connected to the bottom of the connecting ring (121). Three flexible tubes (324) are fixedly connected to the outer surface of the airbag (323). The flexible tube (324) is fixedly connected to the outside of the connecting ring (121) at one end away from the airbag (323), and the hollow cavity (122) is connected to the inside of the airbag (323) through the flexible tube (324).

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