Multifunctional probe of air leakage detection instrument

Abstract

The multifunctional probe comprises a leak detector, a universal pipe, an adjusting mechanism, a detection head and a monitoring assembly, the universal pipe is installed on the leak detector through a first end, the adjusting mechanism is installed at a second end of the universal pipe, the detection head is installed on the adjusting mechanism, and the monitoring assembly is installed on the detection head. The monitoring assembly is arranged on the detection head; when air leakage detection is carried out, the detection head is suitable for being driven by cooperation of the adjusting mechanism and the monitoring assembly to carry out position adjustment, and then different detection points are detected. The beneficial effects of the utility model are that under the cooperation of the adjusting mechanism and the monitoring assembly, the detection head can be flexibly adjusted during the gas leakage detection of the pipeline, thereby achieving the accurate detection of different positions, especially for a gas pipeline located at a corner or deep in a household kitchen, greatly reducing the detection difficulty, and improving the detection efficiency. And the detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of leak detection equipment technology, and in particular to a multifunctional probe for a leak detection instrument. Background Technology

[0002] Natural gas is typically transported through gas pipelines, which may leak due to aging or other reasons. Since natural gas is a flammable gas, leaks can cause serious fires and explosions. Furthermore, natural gas is a hazardous gas; inhalation can result in injury or death. Therefore, professionals regularly conduct on-site leak checks on pipelines, especially at flange connections.

[0003] Existing gas leak detectors consist of the instrument body, a universal joint, and a probe. The probe is inserted into a suitable position for detection by adjusting the universal joint. However, gas pipes in homes are typically located inside kitchen counters, especially in corners or deep within the counter. This requires workers to bend over and makes finding suitable detection points difficult, increasing the complexity of the detection process. Therefore, a multi-functional probe for a gas leak detector is proposed to address these technical problems. Utility Model Content

[0004] One of the objectives of this application is to provide a multifunctional probe for a leak detection instrument.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a multifunctional probe for a leak detection instrument, comprising a leak detector, a universal tube, an adjustment mechanism, a probe head, and a monitoring component. The universal tube is installed on the leak detector at its first end, the adjustment mechanism is installed at the second end of the universal tube, the probe head is installed on the adjustment mechanism, and the monitoring component is disposed on the probe head. During leak detection, the probe head is adapted to adjust its position under the combined action of the adjustment mechanism and the monitoring component, thereby detecting different detection points.

[0006] Preferably, the monitoring component includes a lighting lamp and a camera. The lighting lamp is mounted on a mounting plate at the bottom of the probe head and has a ring structure and is coaxially arranged with the probe head. The camera is disposed outside the probe head.

[0007] Preferably, the adjustment mechanism includes a length adjustment device and an angle adjustment device, the length adjustment device is installed at the second end of the universal joint, the angle adjustment device is installed on the length adjustment device, and the probe head is installed on the angle adjustment device.

[0008] Preferably, the length adjustment device includes multiple sleeves, which are sealed together to form a multi-section telescopic structure; the uppermost sleeve is connected to the angle adjustment device, and the lowermost sleeve is installed at the second end of the universal tube and connected to the air source in the leak detector; when adjusting the length, the air source is adapted to adjust the telescopic movement of the sleeves by compressing gas.

[0009] Preferably, the angle adjustment device includes a ball seat, a ball pin, and multiple telescopic devices. The ball head of the ball pin engages with the ball seat, and the probe is mounted on the connecting rod of the ball pin via the mounting plate. The telescopic device is ball-hinged to the top of the ball seat, and the piston end of the telescopic device is ball-hinged to the bottom of the mounting plate. During angle adjustment, the multiple telescopic devices are adapted to extend and retract, so that the probe can rotate and adjust under the action of the ball pin.

[0010] Preferably, the probe is adapted to be connected to the air source in sequence through the hollow ball pin, the sleeve, and the universal tube; during detection, the probe is adapted to perform air extraction detection under the action of the air source; the length adjustment device further includes multiple sleeve rods, each sleeve rod is connected to a corresponding sleeve, adjacent sleeve rods are sealed together, and the lowest sleeve rod is connected to the air source, which is adapted to adjust the extension and retraction of the sleeve rod by compressing gas.

[0011] Preferably, the number of sleeves is at least three, and the diameter of the sleeves decreases sequentially from bottom to top; a channel is provided at the bottom end of the sleeve rod, and a sealing block is elastically slidably disposed in the channel; when adjusting the length, the sleeves are adapted to extend sequentially from bottom to top under the action of the sealing block.

[0012] Preferably, both ends of the universal tube are connected to the sleeve and the leak detector respectively via threaded connections.

[0013] Compared with the prior art, the beneficial effects of this application are as follows:

[0014] This invention, through the combined action of the adjustment mechanism and monitoring components, allows the probe to be flexibly adjusted during gas leak detection in pipelines, thereby achieving accurate detection at different locations. It is particularly useful for gas pipelines located in corners or deep within home kitchens, greatly reducing the difficulty of detection work and improving detection efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2This is a schematic diagram of the length and angle adjustment device of this utility model.

[0017] Figure 3 This is a schematic diagram of the length adjustment device of this utility model.

[0018] Figure 4 This is a schematic diagram of the angle adjustment device of this utility model.

[0019] Figure 5 This is a schematic diagram of the leak detector of this utility model performing air intake detection.

[0020] Figure 6 This is an enlarged structural diagram of point A of this utility model.

[0021] Figure 7 This is a schematic diagram of the sealing block of this utility model when the channel is opened under the action of airflow.

[0022] Figure 8 This is a schematic diagram of the telescopic device of this utility model extending sequentially.

[0023] In the diagram: 1. Leak detector; 2. Universal tube; 3. Length adjustment device; 301. Sleeve; 302. Sleeve rod; 4. Angle adjustment device; 401. Ball seat; 402. Ball head pin; 403. Telescopic device; 5. Detector head; 6. Filter assembly; 7. Mounting plate; 8. Lighting lamp; 9. Camera; 10. Channel; 11. Sealing block. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] One preferred embodiment of this application, such as Figures 1 to 8 As shown, a multifunctional probe for a leak detection instrument includes a leak detector 1, a universal tube 2, an adjustment mechanism, a probe head 5, and a monitoring component. The universal tube 2 is installed on the leak detector 1 at its first end, the adjustment mechanism is installed at the second end of the universal tube 2, the probe head 5 is installed on the adjustment mechanism, and the monitoring component is located on the probe head 5.

[0028] Understandably, during leak detection, the probe 5 can be positioned and adjusted by the adjustment mechanism and monitoring components to detect different points. This multi-functional probe design greatly improves the flexibility and convenience of leak detection.

[0029] Specifically, the adjustment mechanism includes a length adjustment device 3 and an angle adjustment device 4. The length adjustment device 3 is installed at the second end of the universal tube 2, the angle adjustment device 4 is installed on the length adjustment device 3, and the probe head 5 is installed on the angle adjustment device 4.

[0030] Understandably, when conducting leak detection, staff can first adjust the probe head 5 to a suitable length and position using the universal joint 2, and then insert the probe head 5, along with the monitoring component, into the pipeline to be tested for leak detection. However, in actual testing, some detection points may be located at corners or deeper within the pipeline. In such cases, the position of the probe head 5 can be adjusted using two adjustment devices. For example, the length adjustment device 3 can be used to adjust the length of the probe head 5, extending it to a position near the detection point on the pipeline. Then, the angle adjustment device 4 can be used to adjust the angle of the probe head 5, ensuring it is accurately positioned for detection and improving the convenience of the test.

[0031] In one embodiment of this application, such as Figure 3 As shown, the length adjustment device 3 includes multiple sleeves 301, which are sealed together to form a multi-section telescopic structure. The uppermost sleeve 301 is connected to the angle adjustment device 4, and the lowermost sleeve 301 is installed at the second end of the universal joint 2 and connected to the air source (e.g., a miniature air pump with air extraction and release function) inside the leak detector 1 through an air pipe. Specifically, during length adjustment, the air source can extend the sleeve 301 by introducing compressed gas into it; conversely, when the air source extracts air, the sleeve 301 can be shortened. This allows for the adjustment of the length of the probe head 5.

[0032] In this embodiment, as Figure 4As shown, the angle adjustment device 4 includes a ball seat 401, a ball head pin 402, and multiple telescopic devices 403. The ball seat 401 is mounted on the uppermost sleeve 301. The ball head of the ball head pin 402 engages with the ball seat 401. The probe head 5 is mounted on the connecting rod of the ball head pin 402 via a mounting plate 7. The telescopic device 403 is ball-jointed at the top of the ball seat 401, and the piston end of the telescopic device 403 is ball-jointed at the bottom of the mounting plate 7. It can be understood that during angle adjustment, the multiple telescopic devices 403 can extend and retract, allowing the probe head 5 to rotate and adjust under the action of the ball head pin 402.

[0033] It should be noted that the specific structure and working principle of the telescopic device 403 are well-known to those skilled in the art, and therefore will not be described in detail here. We know that because it is installed on the universal joint 2, the telescopic device 403 is relatively small in size. In this application, a miniature cylinder is preferred, although a miniature hydraulic cylinder can also be used.

[0034] As a further description of the above embodiment: it is preferable to use four telescopic devices 403, such as... Figure 4 As shown, the four telescopic devices 403 are arranged at equal intervals. When adjusting, the probe head 5 can be adjusted at any angle within a certain range by the telescopic movement of different telescopic devices 403, thereby improving the accuracy and flexibility of adjustment.

[0035] When using the leak detector 1, the following problem may occur: if a micro-leak occurs near the detection point, but the leaked gas does not spread to the detection point, it may result in a missed detection.

[0036] Therefore, in order to solve the above-mentioned technical problems, one embodiment of this application is as follows: Figure 5 As shown, the ball head pin 402 and the mounted ball seat 401 can be provided with grooves to form a hollow structure, so that the probe head 5 can be connected to the air source in sequence through the hollow ball head pin 402, ball seat 401, sleeve 301 and universal tube 2 (e.g. Figure 5 (As indicated by the arrow in the image). It can be understood that during detection, the probe 5 can draw in gas with the help of a gas source. This allows the probe 5 to draw in and detect nearby gas even if the concentration of leaked gas near the detection point is low, thereby improving the accuracy and reliability of the detection. Furthermore, this design enables the detection instrument to more flexibly cope with various complex detection environments, improving its practicality and applicability.

[0037] like Figure 4As shown, the monitoring components include a lighting lamp 8 and a camera 9. The lighting lamp 8 is mounted on the mounting plate 7 at the bottom of the detector head 5, and the lighting lamp 8 has a ring structure and is coaxially arranged with the detector head 5. The camera 9 is located outside the detector head 5.

[0038] The camera 9 allows inspectors to clearly observe the actual situation at the inspection point, thus enabling better judgment. The ring-shaped structure of the illumination lamp 8 ensures a wide and uniform illumination range at the bottom of the probe head 5, avoiding blind spots and making the inspection more accurate and reliable. During the inspection process, inspectors can observe the images transmitted by the camera 9, combined with the illumination effect of the illumination lamp 8, to conduct detailed observation and analysis of the inspection point. Furthermore, the combined use of the illumination lamp 8 and the camera 9 can improve inspection efficiency to a certain extent and reduce the occurrence of missed and false detections.

[0039] Furthermore, to further enhance the convenience and practicality of the testing instrument, additional functional modules can be incorporated into its embodiments. For example, a display screen and control system can be installed on the leak detector 1, allowing operators to view the testing data and the image captured by the camera 9 in real time via the display screen, and to operate and configure the instrument through the control system. Simultaneously, a storage device and communication module can be installed on the leak detector 1 to upload the testing data to a cloud server or other terminal devices in real time, enabling remote data storage and sharing.

[0040] Based on the above embodiments, when the sleeve 301 extracts gas, it will interfere with the telescopic movement of the sleeve 301. Therefore, in order to allow the sleeve 301 to still telescopically move, such as Figure 2 As shown, the length adjustment device 3 also includes multiple sleeve rods 302 (corresponding to the number of sleeves 301). The sleeve rods 302 are connected to the corresponding sleeves 301, and adjacent sleeve rods 302 are sealed together. The lowest sleeve rod 302 is connected to the air source. That is, the air source compresses gas to adjust the extension and retraction of the sleeve rods 302, thereby adjusting the extension and retraction of the sleeves 301. Moreover, the sleeves 301 can also ensure the above-mentioned air extraction process.

[0041] Specifically, at least two sleeves 301 must be used, in which case the arrangement of the sleeve rods 302 is similar to that of a cylinder. When using two sleeves, to ensure sufficient travel during extension and retraction, the lowest fixed sleeve rod 302 needs to be of sufficient length to allow the sliding sleeve rod 302 to extend and retract, which significantly reduces the flexibility of the front-end probe 5. Therefore, three or more sleeves 301 (sleeve rods 302) can be used to form a multi-section telescopic structure; that is, the more sleeves 301 there are, the shorter the retracted length will be. This application uses three sleeves, so the following embodiments will also use three as an example.

[0042] like Figure 3 As shown, the three sleeves 302 (sleeves 301) are numbered I, II, and III from bottom to top. The diameter of the sleeves 302 (sleeves 301) decreases sequentially from bottom to top, meaning that the sleeves 302 (sleeves 301) become thinner from bottom to top. During extension, the air source introduces gas from the bottommost (I) sleeve 302. Under the action of air pressure, the topmost (III) sleeve 302 will extend under the thrust of the gas. When (III) sleeve 302 extends to its limit position, (III) sleeve 302 will drive (II) sleeve 302 to extend, thus achieving sequential extension adjustment from top to bottom.

[0043] Based on the above embodiments, the following problem may exist after the extension adjustment: in actual adjustment, it may only be necessary to extend one section each time, that is, there is no need to perform full extension adjustment. In this way, after each extension, the thinnest (No. III) sleeve 301 supports the angle adjustment device 4 and the probe head 5. We know that the smaller the size of the sleeve rod 302 (sleeve 301), the lower its strength. Therefore, it may be damaged and deformed after long-term use.

[0044] Therefore, in order to solve the above-mentioned technical problems, in one embodiment of this application, such as Figure 6 As shown, a channel 10 is provided at the bottom end of the sleeve 302, and a sealing block 11 is elastically slidably installed within the channel 10 via a spring. It can be understood that, as... Figure 8 As shown in (c), assume that the multiple sleeves 302 (sleeves 301) are initially in a retracted state. During the extension adjustment, gas is introduced into sleeve (I) 302. At this time, the channel 10 at the bottom of sleeve (II) 302 is sealed by the sealing block 11. Therefore, the gas will push sleeve (II) 302 and sleeve (I) 302 to extend synchronously, as shown in (c). Figure 8 As shown in (d) in the diagram. When sleeve rod 302 (II) moves to its limit position along sleeve rod 302 (I), the sealing block 11 will be pushed upward under the action of air pressure, thereby opening the channel 10, as shown in the diagram. Figure 7As shown in (a), this allows airflow to enter the interior of sleeve (II) 302 and pushes sleeve (III) 302 out, as... Figure 8 As shown in (e) in the diagram. That is to say, during length adjustment, multiple sleeves 301 extend from top to bottom in sequence under the action of the sealing block 11. In this way, if only one section extends during adjustment, it is equivalent to the (II) and (III) sleeve rods 302 jointly supporting the probe head 5, thereby improving its support strength, avoiding damage and deformation after long-term use, and improving the stability and reliability of the instrument.

[0045] It should be noted that when the miniature air pump stops working, the sealing block 11, under the action of elasticity, is in the following state: Figure 6 As shown, this allows channel 10 to be in a closed state, meaning sleeve 301 can maintain its adjusted state. During contraction adjustment, as... Figure 7 As shown, the sealing block 11 will also open the channel 10 under the action of suction, thus preventing interference with the contraction.

[0046] In one embodiment of this application, such as Figure 4 As shown, a filter assembly 6 (e.g., a filter screen) can be installed on the probe head 5. In this way, when performing air intake detection, the filter assembly 6 can filter impurities in the pipeline or air, thereby preventing them from affecting the detector.

[0047] like Figure 1 As shown, to facilitate instrument installation, both ends of the universal tube 2 are connected to the sleeve 301 (bottommost I) and the leak detector 1 via threaded connections. Furthermore, to ensure the stability and sealing of the connection, sealing rings or gaskets can be installed at the connection points. This design not only facilitates instrument installation and disassembly but also ensures that the instrument will not leak or produce inaccurate readings due to connection issues during use.

[0048] Finally, it should be noted that this leak detector 1 is not only applicable to the inspection of pipes in homes, but also to the inspection of pipes in gas stations, for example. We know that the pipes in gas stations are complex and inconvenient to inspect. When using the leak detector 1 of this application, for example, when detecting leaks at flange connections deep within pipes, conventional detectors can only reach the front of the flange connection for inspection, making rear inspection very inconvenient. With this instrument, the front end of the universal joint 2 can be bent downwards so that the probe head 5 faces downwards, forming an "L" shape. The probe head 5 is then inserted to the upper rear of the flange connection. The length adjustment device 3 extends the probe head 5 to the rear of the flange connection. Finally, the angle adjustment device 4, the lighting lamp 8, and the camera 9 work together to rotate the probe head 5 to the desired inspection position. The telescopic device 403 and the sleeve 301 in this application all require the use of a micro air pump for telescopic movement and air extraction detection. The three actions can be performed independently and share a micro air pump. Alternatively, multiple micro air pumps can be used to drive them individually, that is, they can be connected to the corresponding components through air pipes and valves and controlled by a controller. The control circuit of the controller and the pipe connection are common knowledge in the field, so they will not be described in detail here.

[0049] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A multifunctional probe for a leak detection instrument, characterized in that, include: Leak detector; Universal tube, the universal tube is installed on the leak detector through the first end; An adjustment mechanism is installed at the second end of the universal joint; A probe, which is mounted on the adjustment mechanism; as well as A monitoring component is disposed on the probe head; When performing air leakage detection, the probe is adapted to adjust its position under the combined action of the adjustment mechanism and the monitoring component, so as to detect different detection points. The monitoring component includes a lighting lamp and a camera. The lighting lamp is mounted on a mounting plate at the bottom of the probe head and has a ring structure and is coaxially arranged with the probe head. The camera is located outside the probe head. The adjustment mechanism includes a length adjustment device and an angle adjustment device. The length adjustment device is installed at the second end of the universal tube, and the angle adjustment device is installed at the length adjustment device. The probe head is installed at the angle adjustment device. The length adjustment device includes multiple sleeves, which are sealed together to form a multi-section telescopic structure. The uppermost sleeve is connected to the angle adjustment device, and the lowermost sleeve is installed at the second end of the universal tube and connected to the air source in the leak detector. When adjusting the length, the air source is adapted to adjust the telescopic movement of the sleeves by compressing gas. The angle adjustment device includes a ball seat, a ball head pin, and multiple telescopic devices. The ball seat is installed on the uppermost sleeve. The ball head pin's spherical head mates with the ball seat. The probe is mounted on the connecting rod of the ball head pin via the mounting plate. The telescopic device is ball-jointed at the top of the ball seat, and the piston end of the telescopic device is ball-jointed at the bottom of the mounting plate. During angle adjustment, the multiple telescopic devices are adapted to extend and retract, allowing the probe to rotate and adjust under the action of the ball head pin.

2. The multifunctional probe of the leak detection instrument as described in claim 1, characterized in that: The probe is adapted to be connected to the air source in sequence through the hollow ball pin, the sleeve, and the universal tube; during detection, the probe is adapted to perform air extraction detection under the action of the air source; The length adjustment device also includes multiple sleeve rods, each sleeve rod being connected to a corresponding sleeve. Adjacent sleeve rods are sealed together, and the lowest sleeve rod is connected to the air source, which is adapted to adjust the extension and retraction of the sleeve rod by compressing gas.

3. The multifunctional probe of the leak detection instrument as described in claim 2, characterized in that: The number of sleeves is at least three, and the diameter of the sleeves decreases sequentially from bottom to top; a channel is provided at the bottom end of the sleeve rod, and a sealing block is elastically slidably disposed in the channel; when adjusting the length, the sleeves are adapted to extend sequentially from bottom to top under the action of the sealing block.

4. The multifunctional probe of the leak detection instrument as described in any one of claims 1-3, characterized in that: The two ends of the universal tube are respectively connected to the sleeve and the leak detector through threaded engagement.

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