A pipeline gas tightness detection device

Abstract

The utility model relates to airtightness detection technical field discloses a pipeline airtightness detection device, including detector main part, butt joint, pipeline, the both sides end of detector main part is provided with butt joint, installs the pipeline in butt joint, is installed on butt joint with the clamping component, firm component, sealing assembly, the clamping component sets up on butt joint, firm component sets up on the clamping component, sealing assembly sets up in the outside of clamping component, the utility model discloses through setting up clamping, firm, sealing assembly forms multiple protection, solves the problem that the existing device is connected and is insufficiently sealed, and the clamping component is adapted with butt joint through the clamping seat, realizes quick positioning, firm component fixes the clamping seat with the threaded firm ring, prevents loosening, sealing assembly is wrapped up the clamping seat with the sealing pad in the sealing seat, and the fixed pin is consolidated and forms double seal, the three synergies promote the connection firmness and airtightness, prevent medium leakage, guarantee detection accuracy, reduce hidden danger, satisfy high accuracy detection demand.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically a pipeline airtightness testing device. Background Technology

[0002] In many industrial and public sectors such as petrochemicals, municipal water supply, and natural gas transmission, pipelines serve as the core carriers for media transmission. Their airtightness is directly related to production safety, resource utilization, and environmental protection. Once a pipeline has airtightness defects, it may lead to leakage of the transported media and cause economic losses. Therefore, accurate and reliable airtightness testing of pipelines is a key link to ensure the stable operation of various industries.

[0003] The existing Chinese patent document CN220552574U discloses a pipeline airtightness testing device, which includes a frame for detachable installation of pipelines, a support shaft fixed on the frame, and a generating component and a control component for accurately emitting ultrasonic waves at various locations on the inner wall of the pipeline. This invention utilizes a servo motor to drive a cylinder to rotate and move along the axis of a threaded shaft, causing the first rod, second rod, electromagnet, and ultrasonic generator on the cylinder to move synchronously. The ultrasonic generator emits ultrasonic waves towards the inner surface of the pipeline, emitting ultrasonic waves of appropriate intensity to the inner wall while reducing overall ultrasonic wave filtration. The electromagnet attracts a permanent magnet on the outer surface of the pipeline, moving synchronously with the ultrasonic generator. This ensures that the ultrasonic waves passing through the pipeline are detected by the ultrasonic sensor on the support block immediately, guaranteeing accurate detection of low-intensity ultrasonic waves and enabling detection at various locations on the inner wall of the pipeline, thus improving the detection effect.

[0004] Existing technical solutions and those mentioned above generally lack multiple sealing components. In the process of pipeline airtightness testing, the connection between the testing device and the pipeline to be tested is the key link to ensure airtightness. A single sealing structure is difficult to adapt to the sealing requirements under different working conditions, and it is easy to have poor sealing, which may lead to media leakage or external gas entering the testing system during the testing process.

[0005] Therefore, this utility model proposes a pipeline airtightness testing device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a pipeline airtightness testing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pipeline airtightness testing device, comprising a detector body, a connector, and a pipeline, wherein the detector body is provided with connectors at both ends, and a pipeline is installed inside the connectors; The interface is equipped with a snap-fit ​​component, a securing component, and a sealing component. The snap-fit ​​component is disposed on the interface, the securing component is disposed on the snap-fit ​​component, and the sealing component is disposed on the outside of the snap-fit ​​component.

[0008] Preferably, the snap-fit ​​assembly has a snap-fit ​​seat that is slidably fitted onto the pipe, and snap-fit ​​protrusions are evenly distributed at the end of the snap-fit ​​seat.

[0009] Preferably, the snap-fit ​​protrusions in the snap-fit ​​assembly are adapted to slide and snap-fit ​​into the snap-fit ​​grooves, and the snap-fit ​​grooves are evenly distributed on the interface.

[0010] Preferably, the retaining ring in the retaining component has threads evenly distributed inside, and the retaining ring threadedly connects the snap-fit ​​seat to the mating interface.

[0011] Preferably, a sealing gasket is fixedly disposed inside the sealing seat of the sealing assembly, and the sealing gasket is wrapped around the outer two ends of the snap-fit ​​seat.

[0012] Preferably, the sealing gasket in the sealing assembly is provided with fixing holes evenly distributed, and fixing pins are fixedly installed in the fixing holes.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting up a snap-fit ​​component, a securing component, and a sealing component, a multi-protection structure is formed, which solves the problem of insufficient sealing at the connection parts of existing detection devices. The snap-fit ​​component achieves quick positioning and connection between the detection device and the pipeline by snapping the snap-fit ​​seat with the matching interface. The securing component uses a threaded retaining ring to stably fix the snap-fit ​​seat on the interface, preventing the connection parts from loosening due to external force or pressure fluctuations. The sealing component wraps the end of the snap-fit ​​seat with a sealing gasket inside the sealing seat and reinforces the sealing gasket with a fixing pin, forming a double sealing protection. The three components work together to not only improve the firmness of the connection between the detection device and the pipeline, but also significantly enhance the airtightness of the connection parts, effectively preventing media leakage or external gas from entering the detection system during the detection process, ensuring the accuracy of the detection results, reducing safety hazards, and meeting the high-precision and high-reliability detection requirements under different working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model; Figure 3 This is a schematic diagram of the robust component structure of this utility model; Figure 4 This is a schematic diagram of the sealing component structure of this utility model.

[0015] In the diagram: detector body 1, interface 2, pipe 3, snap-fit ​​assembly 4, fastening assembly 5, sealing assembly 6, snap-fit ​​seat 401, snap-fit ​​protrusion 402, snap-fit ​​groove 403, fastening ring 501, sealing seat 601, sealing gasket 602, fixing hole 603, fixing pin 604. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: Please refer to Figures 1-2 A pipeline airtightness testing device includes a detector body 1, a mating interface 2, and a pipeline 3. The mating interface 2 is provided at both ends of the detector body 1, and the pipeline 3 is installed inside the mating interface 2. A snap-fit ​​component 4, a fastening component 5, and a sealing component 6 are installed on the mating interface 2. The snap-fit ​​component 4 is provided on the mating interface 2, the fastening component 5 is provided on the snap-fit ​​component 4, and the sealing component 6 is provided on the outside of the snap-fit ​​component 4.

[0018] The snap-fit ​​assembly 4 has a snap-fit ​​seat 401 that is slidably fitted onto the pipe 3, and snap-fit ​​protrusions 402 are evenly provided at the end of the snap-fit ​​seat 401.

[0019] The snap-fit ​​protrusion 402 in the snap-fit ​​assembly 4 is adapted to slide and snap-fit ​​in the snap-fit ​​groove 403, and the snap-fit ​​groove 403 is evenly distributed on the interface 2.

[0020] During use, inspect the end of the pipe 3 to be tested to ensure that the end of the pipe 3 is smooth. After preparation, align one end of the pipe 3 with the interface 2 on one side of the detector body 1, keeping the pipe 3 and interface 2 coaxial, and slowly and evenly push it in until the pipe 3 and interface 2 reach the preset installation depth. Usually, the end of the pipe 3 is in contact with the internal limiting structure of the interface 2. Then, take out the snap-fit ​​seat 401 from the snap-fit ​​assembly 4 and slide it along the outer wall of the pipe 3 from the free end of the pipe 3, so that the end of the snap-fit ​​seat 401 is in contact with the interface 2. The evenly distributed snap-fit ​​protrusions 402 are aligned one-to-one with the snap-fit ​​grooves 403 evenly opened on the outer side wall of the interface 2. After alignment, the snap-fit ​​seat 401 is pushed to move towards the interface 2, so that the snap-fit ​​protrusions 402 can slide smoothly into the inner wall of the snap-fit ​​grooves 403 until the snap-fit ​​protrusions 402 are completely embedded in the snap-fit ​​grooves 403. Through the matching snap-fit ​​of the snap-fit ​​protrusions 402 and the snap-fit ​​grooves 403, the snap-fit ​​seat 401 initially fixes the pipe 3 on the interface 2, and successfully completes the rapid positioning of the detection device and the pipe 3.

[0021] Example 2: Based on Example 1, please refer to... Figures 2-3The retaining ring 501 in the retaining component 5 has threads evenly arranged inside, and the retaining ring 501 threadedly connects the snap-fit ​​seat 401 to the interface 2.

[0022] In use, after installing the snap-fit ​​assembly 4 in Embodiment 1, the retaining ring 501 is slipped onto the outside of the snap-fit ​​seat 401 from the free end of the pipe 3, ensuring precise alignment of the internal thread of the retaining ring 501 with the external thread of the snap-fit ​​seat 401. This prevents thread misalignment that could prevent installation or damage to the threads. After alignment, hold the small anti-slip grooves on the outer side of the retaining ring 501 and rotate it clockwise. As the retaining ring 501 continues to rotate, it will gradually move along the external thread of the snap-fit ​​seat 401 towards the mating interface 2. During this movement, the retaining ring 501 will continuously exert pressure on the snap-fit ​​seat 401. The squeezing force makes the clamping seat 401 fit more tightly with the interface 2. When the end face of the retaining ring 501 is close to the interface 2, it fits tightly with the outer wall of the interface 2. The retaining ring 501, through the tight engagement of its internal thread with the external thread of the interface 2 and the clamping seat 401, firmly connects the clamping seat 401 to the interface 2. This can effectively prevent the connection between the pipe 3, the interface 2 and the clamping seat 401 from loosening due to external force collisions in the external environment, vibrations caused by equipment operation, or pressure fluctuations inside the detection system during subsequent airtightness testing.

[0023] Example 3: Based on Example 2, please refer to... Figures 3-4 A sealing gasket 602 is fixedly provided inside the sealing seat 601 in the sealing assembly 6, and the sealing gasket 602 is wrapped around the outer two ends of the snap-fit ​​seat 401.

[0024] The sealing gasket 602 in the sealing assembly 6 has evenly distributed fixing holes 603, and fixing pins 604 are fixedly installed in the fixing holes 603.

[0025] In use, after completing the installation of the secure component 5 in Embodiment 2, the installation of the sealing component 6 begins. The sealing seat 601 is slipped from the free end of the pipe 3 onto the outside of the snap-fit ​​seat 401. Both sides of the sealing seat 601 are held firmly, ensuring that the sealing gasket 602 inside the sealing seat 601 completely covers both ends of the outer wall of the snap-fit ​​seat 401. Simultaneously, it is ensured that the inner surface of the sealing gasket 602 is tightly fitted to the outer wall of the snap-fit ​​seat 401, and that the end face of the sealing gasket 602 is tightly fitted to the outer wall of the mating interface 2, without any obvious gaps. The evenly spaced fixing holes 603 on the sealing gasket 602 are located, and the fixing holes 603 on the sealing gasket 602 are aligned. Next, remove the fixing pin 604, align one end of the fixing pin 604 with the aligned hole, and gently push the fixing pin 604 into the hole by hand until the end of the fixing pin 604 is flush with the outer wall of the sealing seat 601. Ensure that the fixing pin 604 is firmly installed, and then install the nut to fix it. After installation, the fixing pin 604 can effectively limit the displacement of the sealing gasket 602 in the subsequent airtightness test process, and prevent the sealing gasket 602 from shifting or deforming due to the pressure inside the test system. This ensures that the sealing gasket 602 always maintains a tight fit with the snap-fit ​​seat 401 and the outer wall of the interface 2, forming a reliable double sealing protection structure.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe air tightness testing device, comprising a detector body (1), a connector (2), and a pipe (3), wherein the detector body (1) is provided with connectors (2) at both ends, and the pipe (3) is installed in the connectors (2); Its features are: It includes a snap-fit ​​assembly (4), a securing assembly (5), and a sealing assembly (6). The snap-fit ​​assembly (4) is disposed on the interface (2), the securing assembly (5) is disposed on the snap-fit ​​assembly (4), and the sealing assembly (6) is disposed on the outside of the snap-fit ​​assembly (4).

2. The pipeline airtightness testing device according to claim 1, characterized in that: The snap-fit ​​assembly (4) has a snap-fit ​​seat (401) that is slidably fitted onto the pipe (3), and snap-fit ​​protrusions (402) are evenly provided at the end of the snap-fit ​​seat (401).

3. The pipeline airtightness testing device according to claim 2, characterized in that: The snap-fit ​​protrusion (402) in the snap-fit ​​assembly (4) is adapted to slide and snap-fit ​​in the snap-fit ​​groove (403), and the snap-fit ​​groove (403) is evenly arranged on the interface (2).

4. The pipeline airtightness testing device according to claim 1, characterized in that: The securing ring (501) in the securing component (5) has threads evenly arranged inside, and the securing ring (501) threadedly connects the snap-fit ​​seat (401) to the mating interface (2).

5. The pipeline airtightness testing device according to claim 1, characterized in that: A sealing gasket (602) is fixedly provided inside the sealing seat (601) of the sealing assembly (6), and the sealing gasket (602) is wrapped around the outer two ends of the snap-fit ​​seat (401).

6. The pipeline airtightness testing device according to claim 5, characterized in that: The sealing gasket (602) in the sealing assembly (6) is provided with fixing holes (603) evenly distributed, and fixing pins (604) are fixedly installed in the fixing holes (603).

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