A pressure sensor connector assembly leak detection device

Abstract

The utility model discloses a kind of pressure sensor connector assembly air-tightness detection device, it is related to pressure sensor detection technical field, including bottom rack, operation platform, upper support, and detection and chucking structure are equipped on operation platform, display screen is equipped on upper support rear end, equidistantly equipped with air cylinder on front end transverse plate, air cylinder protruding end is detachably assembled with upper sealing head;Detection and chucking structure contain limiting table and sealing table, sealing table is opened gas hole, and sealing ring is equipped on upper end outer edge.The device realizes multi-station detection, sealing is reliable, adaptability is strong, effectively promotes detection efficiency and accuracy, and saves equipment cost.

Description

Technical Field

[0001] This utility model relates to the field of pressure sensor detection technology, specifically a pressure sensor connector assembly airtightness detection device. Background Technology

[0002] In the production and application of pressure sensors, the airtightness of their connector components directly determines the accuracy of the pressure sensor's measurement data and the safety of equipment operation. Existing testing devices often suffer from low testing efficiency, poor sealing, and limited adaptability. For example, they can only test a single connector component at a time, and their sealing structures are difficult to adapt to different connector specifications. Inaccurate sealing during testing can easily lead to deviations in test results, failing to meet the high-efficiency and accurate testing requirements of mass production scenarios. Therefore, there is an urgent need for an airtightness testing device that can achieve multi-station synchronous testing, reliable sealing, and easy replacement of sealing components to address the shortcomings of existing technologies. Utility Model Content

[0003] In view of the problems existing in the prior art, the present invention provides a pressure sensor connector assembly airtightness testing device, which aims to improve testing efficiency and sealing reliability, while enhancing the device's adaptability to connector assemblies of different specifications.

[0004] A pressure sensor connector assembly airtightness testing device includes a bottom frame, an operating table mounted on the upper surface of the bottom frame, and an upper support mounted on the operating table. A detection and clamping structure is fixedly installed on the operating table for placing the connector assembly and performing airtightness testing on it. A display screen is installed on the rear end face of the upper support, and a horizontal plate is installed on the front end face. Cylinders are equidistantly installed on the horizontal plate, and an upper sealing head is detachably installed on the extended end of each cylinder. The extended end of the cylinder can push the upper sealing head downward to seal the upper end of the connector assembly.

[0005] As a preferred embodiment of this utility model, the detection and clamping structure includes a limiting platform, on which a sealing platform is integrally formed. An air supply hole is provided in the middle of the sealing platform, and the lower end of the air supply hole is connected to an air supply pipe for detecting air tightness. The air supply pipe is located below the operating platform. An annular groove is provided at the outer edge of the upper surface of the sealing platform, and a sealing ring is fixedly installed in the annular groove.

[0006] In a preferred embodiment of this invention, the upper edge of the sealing ring is at a height higher than the upper surface of the sealing platform.

[0007] As a preferred embodiment of this utility model, the cylinder protruding end is provided with an external thread, and the upper sealing head is provided with a threaded hole at its upper part. The upper sealing head is detachably assembled to the cylinder protruding end through the threaded hole.

[0008] As a preferred embodiment of this utility model, a locking nut is also threaded onto the external thread, and the locking nut is positioned above the threaded hole of the upper sealing head for locking and fixing the upper sealing head.

[0009] As a preferred embodiment of this utility model, the upper sealing head, detection and clamping structure are each configured to be eight in number, and each detection and clamping structure is provided with a start button on its front side.

[0010] By adopting the above technical solution, this utility model has the following beneficial effects:

[0011] This invention supports independent testing at multiple workstations. Compared to traditional single-station testing equipment, it can simultaneously process multiple connector assemblies of various types, significantly reducing batch testing time and meeting the high-efficiency testing needs of industrial mass production. The sealing platform of the testing and clamping structure is equipped with an annular groove and a sealing ring at its upper end, with the upper edge of the sealing ring higher than the surface of the sealing platform, allowing it to tightly fit with the bottom of the connector assembly to achieve a lower seal. The upper sealing head, driven by a cylinder, provides downward pressure sealing at the upper end, effectively preventing gas leakage during testing and ensuring the accuracy of the test results. The upper sealing head can be detachably assembled with the external thread of the cylinder extension end through a threaded hole and fixed with a locking nut. When testing pressure sensor connector assemblies of different specifications, only the upper sealing head of the corresponding size needs to be replaced, without replacing the entire testing mechanism, reducing equipment adaptation costs and improving the device's adaptability to diverse testing needs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is an enlarged view of the clamping part of the connector assembly of this utility model;

[0014] Figure 3 This is a schematic diagram of the detection and clamping structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the bottom structure of the connector assembly of this utility model.

[0016] In the diagram: 1. Bottom frame; 2. Operating table; 3. Upper support; 4. Display screen; 5. Horizontal plate; 6. Cylinder; 7. Upper sealing head; 8. Start button; 9. Detection and clamping structure; 91. Limiting platform; 92. Sealing platform; 93. Air inlet; 94. Annular groove; 95. Sealing ring; 10. Connector assembly; 11. Locking nut. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example 1

[0019] The pressure sensor connector assembly 10 is divided into two parts: upper and lower.

[0020] Lower part: The bottom is a cover-shaped structure, and a boss is integrally formed at the middle of the upper part of the cover-shaped structure. The boss is provided with external threads.

[0021] Upper part: The top is a threaded post, and the bottom is a nut, with the threaded post and nut fixedly connected;

[0022] The upper part is connected to the lower part by a nut and a threaded boss.

[0023] The pressure sensor connector assembly 10 has a through hole at its center. This airtightness testing device detects the sealing performance of the connector assembly by allowing air to pass through from bottom to top.

[0024] like Figures 1 to 4 As shown, the airtightness testing device for a pressure sensor connector assembly of this utility model has the following operating steps in actual use:

[0025] Clamping preparation: Select the appropriate upper sealing head 7 according to the specifications of the connector assembly 10 to be tested. Install the upper sealing head 7 on the cylinder 6 by matching the threaded hole on the upper part of the upper sealing head 7 with the external thread of the cylinder 6 extension end. Then tighten the locking nut 11 to fix the upper sealing head 7 and prevent it from loosening during the test.

[0026] Clamping the workpiece: Place the joint assembly 10 on the sealing platform 92 of the detection and clamping structure 9. The limiting platform 91 positions the joint assembly 10 to prevent it from shifting. At this time, the sealing ring 95 (the upper edge of which is higher than the upper surface of the sealing platform 92) in the annular groove 94 at the upper end of the sealing platform 92 is tightly fitted with the bottom of the joint assembly 10, thus initially achieving lower sealing.

[0027] Start detection: Press the start button 8 on the front side of the corresponding detection and clamping structure 9. The extended end of the cylinder 6 pushes the upper sealing head 7 downward. The upper sealing head 7 seals the upper end of the connector assembly 10 to form a closed chamber.

[0028] Ventilation test: The gas supply pipeline introduces test gas from bottom to top through the gas supply hole 93 in the middle of the sealing platform 92. The gas fills the through hole in the center of the connector assembly 10 and the sealed chamber. The display screen 4 displays the pressure change in the chamber in real time. If the pressure remains stable, it means that the airtightness of the connector assembly 10 is qualified. If the pressure drops, there is a leak and the airtightness is unqualified. The test results are displayed on the display screen 4. The eight test results are divided into two rows, with four display boxes in each row, and are numbered 1-8 respectively. Each display box displays the words: qualified / unqualified.

[0029] Inspection completed: After the inspection is completed, the cylinder 6 extension end is reset, the connector assembly 10 is removed, and the next batch of inspections can be carried out; the eight upper sealing heads 7 and the inspection and clamping structure 9 can work independently, improving the efficiency of batch inspection; different specifications of upper sealing heads 7 can also be assembled separately, so as to meet the inspection of connector assemblies of various specifications and improve efficiency; if synchronous inspection is required, simply short-circuit each start button 8 and connect a master control start button in series on the main circuit. Short-circuiting and series connection are common techniques, and their principles will not be elaborated here.

[0030] The control system and pneumatic system in this paper are all existing products without modification. Other components are all general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0031] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A pressure sensor connector assembly airtightness detection device, comprising: The bottom frame (1), the operating table (2) mounted on the upper surface of the bottom frame, and the upper support (3) mounted on the operating table (2) are characterized in that: The operating table (2) is fixedly installed with a detection and clamping structure (9), which is used to place the connector assembly (10) and perform airtightness testing on it. The upper bracket (3) has a display screen (4) installed on its rear end face and a horizontal plate (5) installed on its front end face. Cylinders (6) are installed on the horizontal plate (5) at equal intervals. An upper sealing head (7) is detachably installed on the extended end of the cylinder (6); the extended end of the cylinder (6) can push the upper sealing head (7) downward so that the upper sealing head (7) seals the upper end of the connector assembly (10).

2. The pressure sensor connector assembly airtightness detection device according to claim 1, characterized in that: The detection and clamping structure (9) includes a limiting platform (91), on which a sealing platform (92) is integrally formed. An air supply hole (93) is provided in the middle of the sealing platform (92). The lower end of the air supply hole (93) is connected to the air supply pipe for detecting air tightness. The air supply pipe is located below the operating table (2). An annular groove (94) is provided at the outer edge of the upper end face of the sealing platform (92). A sealing ring (95) is fixedly installed in the annular groove (94).

3. The pressure sensor connector assembly airtightness detection device according to claim 2, characterized in that: The upper edge of the sealing ring (95) is at a higher horizontal height than the upper surface of the sealing platform (92).

4. The pressure sensor connector assembly airtightness detection device according to claim 1, characterized in that: The cylinder (6) has an external thread at its extended end, and the upper sealing head (7) has a threaded hole at its upper part. The upper sealing head (7) is detachably mounted on the extended end of the cylinder (6) through the threaded hole.

5. The pressure sensor connector assembly airtightness detection device according to claim 4, characterized in that: A locking nut (11) is also threaded onto the external thread. The locking nut (11) is positioned above the threaded hole of the upper sealing head (7) and is used to lock and fix the upper sealing head (7).

6. The pressure sensor connector assembly airtightness detection device according to claim 1, characterized in that: The upper sealing head (7) and the detection and clamping structure (9) are set to eight, and each detection and clamping structure (9) has a start button (8) on its front side.

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