Connector structure capable of rapidly detecting air tightness

Abstract

The utility model discloses a connector structure capable of rapidly detecting air tightness, which comprises a connector main body which is of a through-hole-shaped structure, the outer axial surface of the connector main body is provided with a limiting clamping bulge and a limiting pin, and the inner axial surface of the connector main body is provided with a sealing ring; the connector clamping jaw is arranged on the outer axial face of the connector body, a limiting clamping groove is formed in the inner side face of the connector clamping jaw and matched with the limiting clamping protrusion, the limiting clamping protrusion falls into the limiting clamping groove to limit front-back movement of the connector clamping jaw, and a sealing ring is arranged on the outer side face of the connector clamping jaw; the connector clamping ring is arranged on the outer axial face of the connector body and the connector clamping jaw in a sleeving mode, a stroke groove is formed in the axial face of the connector clamping ring and matched with the limiting pin, and the connector clamping ring is allowed to move axially when the limiting pin falls into the stroke groove. A tower-shaped connector is arranged at the front end of the connecting pipe, the connecting pipe is connected into the connector body through the tower-shaped connector, the tower-shaped connector is connected with the sealing ring in a sealed mode, and the rear bottom face of the tower-shaped connector abuts against the inner bottom face of the connector clamping jaw to limit movement of the connecting pipe.

Description

Technical Field

[0001] This utility model relates to the field of airtight connector technology, specifically a structure for rapidly testing airtight connectors. Background Technology

[0002] With the continuous advancement of industrial technology, the requirements for product quality and performance are constantly increasing. Especially in fields with high precision and high reliability requirements, such as automobiles, aerospace, and medical devices, the testing of airtightness is of paramount importance. As a key component in airtightness testing, rapid airtightness testing connectors are experiencing increased technological development and application demands. For example, in the automotive industry, they can be used to test the airtightness of components such as engine blocks, radiators, braking systems, and evaporators; in the aerospace field, they can be used to test the airtightness of critical components such as aircraft fuel tanks and hydraulic systems; and in the medical device industry, they can be used to test the airtightness of various medical devices and fittings. Furthermore, in civilian industries, products such as motorcycles, cameras, and gas appliances also require airtightness testing.

[0003] Existing airtight connectors mostly use threaded or snap-fit ​​structures to achieve sealing, but these suffer from problems such as complex installation and reliance on manual operation precision for sealing performance. For example, the jaws of traditional jaw-type connectors are prone to loosening due to vibration, and the simple sealing structure makes it difficult to quickly test whether the airtightness meets the standards. In addition, the lack of double restraint after the connecting pipe is inserted makes it susceptible to displacement due to pressure changes.

[0004] In summary, a rapid testing structure for airtight connectors is needed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a structure for rapidly testing airtightness of connectors, thus resolving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid airtightness testing connector structure, comprising:

[0007] The connector body has a through-hole structure. The outer axial surface of the connector body is provided with a limiting protrusion and a limiting pin. The inside of the connector body is provided with a sealing ring.

[0008] The connector claw is located on the outer shaft surface of the connector body. The inner side of the connector claw is provided with a limiting groove. The limiting groove is adapted to the limiting protrusion. The limiting protrusion falls into the limiting groove to limit the forward and backward movement of the connector claw. The outer side of the connector claw is provided with a sealing ring.

[0009] The connector retaining ring is sleeved on the outer axial surface of the connector body and the connector claw. The axial surface of the connector retaining ring is provided with a stroke groove, which is adapted to the limit pin. When the limit pin falls into the stroke groove, the connector retaining ring is allowed to move axially.

[0010] The connecting pipe has a tower-shaped connector at its front end. The connecting pipe is connected to the connector body through the tower-shaped connector. The tower-shaped connector is sealed with the sealing ring. The bottom surface of the tower-shaped connector abuts against the bottom surface of the connector claw to restrict the movement of the connecting pipe.

[0011] Furthermore, the inner axial surface of the connector body is provided with annular grooves spaced apart, and there are two sealing rings, which are respectively disposed in the annular grooves on the inner axial surface of the connector body. The inner diameter of the sealing rings is smaller than the maximum outer diameter of the tower-shaped connector.

[0012] Furthermore, the number of the connector claws is three, which are evenly distributed along the circumference of the connector body.

[0013] Furthermore, the sealing ring has a circular cross-section, and its outer diameter is larger than the outer surface of the connector claw.

[0014] Furthermore, the tower-shaped connector is composed of two stacked cones, and the cone angle of the two cones of the tower-shaped connector ranges from 30° to 60°.

[0015] Compared with existing technologies, it has the following advantages: It provides a fast airtightness testing connector structure. The tower-shaped connector at the front end of the connector tube is interference-fitted with two sealing rings to form a double seal, which improves the sealing performance. At the same time, the inner bottom surface of the connector claw abuts to form a mechanical stop, ensuring the connection stability.

[0016] By fitting a connector retaining ring onto the outer shaft surface of the connector body and the connector jaws, the connector retaining ring locks the connector jaws, preventing the overall connector structure from loosening due to external forces and improving reliability. Attached Figure Description

[0017] Figure 1 The image shown is a three-dimensional view of the structure of a connector for rapid airtightness testing.

[0018] Figure 2 The image shown is a front view of the structure of a quick-test airtightness connector.

[0019] Figure 3 The diagram shown is an exploded view of the structure of a fast-testing airtight connector.

[0020] Figure 4 The image shown is an exploded view of a fast-testing airtight connector structure.

[0021] Figure 5 The image shown is a cross-sectional view of a connector structure for rapid airtightness testing.

[0022] In the diagram: 1. Connector body; 2. Sealing ring; 3. Connector claw; 4. Sealing ring; 5. Connector retaining ring; 6. Connecting pipe; 10. Limiting protrusion; 11. Limiting pin; 12. Annular groove; 30. Limiting groove; 50. Stroke groove; 60. Tower-shaped connector; 600. Cone. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 As shown, this utility model provides a technical solution: a structure for quickly testing the airtightness of a connector, comprising:

[0025] The connector body 1 has a through hole structure. The outer shaft surface of the connector body 1 is provided with a limiting protrusion 10 and a limiting pin 11. The connector body 1 is provided with a sealing ring 2 inside.

[0026] The connector claw 3 is located on the outer shaft surface of the connector body 1. The inner side of the connector claw 3 is provided with a limiting groove 30, which is adapted to the limiting protrusion 10. The limiting protrusion 10 falls into the limiting groove 30 to restrict the forward and backward movement of the connector claw 3. The outer side of the connector claw 3 is provided with a sealing ring 4.

[0027] The connector retaining ring 5 is sleeved on the outer axial surface of the connector body 1 and the connector claw 3. The axial surface of the connector retaining ring 5 is provided with a stroke groove 50. The stroke groove 50 is adapted to the limiting pin 11. When the limiting pin 11 falls into the stroke groove 50, the connector retaining ring 5 is allowed to move axially.

[0028] The connecting pipe 6 has a tower-shaped connector 60 at its front end. The connecting pipe 6 is connected to the connector body 1 through the tower-shaped connector 60. The tower-shaped connector 60 is sealed to the sealing ring 2. The rear bottom surface of the tower-shaped connector 60 abuts against the inner bottom surface of the connector claw 3 to restrict the movement of the connecting pipe 6.

[0029] Please see Figure 3-4 As shown, the inner axial surface of the connector body 1 is provided with annular grooves 12 spaced apart. There are two sealing rings 2, which are respectively set in the annular grooves 12 on the inner axial surface of the connector body 1. The inner diameter of the sealing ring 2 is smaller than the maximum outer diameter of the tower-shaped connector 60. This connector structure adopts a double sealing ring design, which forms a double seal with the tower-shaped connector 60, making it easy to test the sealing performance by air pressure.

[0030] There are three connector claws 3, which are evenly distributed around the circumference of the connector body 1. The sealing ring 4 has a circular cross-section and its outer diameter is larger than the outer side of the connector claw 3. The sealing ring 4 serves to fix the three connector claws 3 together and at the same time make the connector ring 5 and the connector claw 3 form an internal sealing structure to ensure that the transmission of fluid or gas will not be interrupted or leaked due to loose connection.

[0031] Please see Figure 5 As shown, the tower-shaped connector 60 consists of two stacked cones 600. The cone angle of the two cones 600 of the tower-shaped connector 60 ranges from 30° to 60°. The conical surface design of the tower-shaped connector 60 reduces insertion resistance and enhances the sealing contact area.

[0032] Assembly process for rapid testing of airtight connector structure: Insert the connecting pipe 6 into the bottom of the connector body 1, and the tower-shaped connector 60 forms a double seal with the two sealing rings 2 inside the connector body 1; fit the connector retaining ring 5 onto the outer shaft surface of the connector body 1, and the limiting pin 11 falls into the stroke groove 50 to make the connector retaining ring 5 move forward axially; install the three connector claws 3 evenly distributed around the circumference of the connector body 1 on the outer shaft surface of the connector body 1. After the connector claws 3 are installed, the inner bottom surface of the connector claws 3 abuts against the rear bottom surface of the tower-shaped connector 60 to restrict the movement of the connecting pipe 6, improve the connection reliability between the connecting pipe 6 and the connector body 1, push the connector retaining ring 5 to move axially towards the connector claws 3 until it abuts against the connector claws 3, rotate the connector retaining ring 5 to make the limiting pin 11 disengage from the stroke groove 50, and the limiting pin 11 on the connector body 1 changes to abutting against the connector retaining ring 5, so that the connector retaining ring 5 locks the three connector claws 3. After the entire connector structure is assembled, test gas is injected through the through hole of the connector body 1 to observe whether there is any leakage to evaluate the sealing performance of the connector. If there is no leakage at the connector, it indicates that the sealing performance is good.

Claims

1. A structure for rapidly testing the airtightness of a connector, characterized in that, include: The connector body (1) is a through hole structure. The outer shaft surface of the connector body (1) is provided with a limiting protrusion (10) and a limiting pin (11). The connector body (1) is provided with a sealing ring (2). The connector claw (3) is located on the outer shaft surface of the connector body (1). The inner side of the connector claw (3) is provided with a limiting groove (30). The limiting groove (30) is adapted to the limiting protrusion (10). The limiting protrusion (10) falls into the limiting groove (30) to restrict the forward and backward movement of the connector claw (3). The outer side of the connector claw (3) is provided with a sealing ring (4). The connector retainer (5) is sleeved on the outer shaft surface of the connector body (1) and the connector claw (3). The shaft surface of the connector retainer (5) is provided with a stroke groove (50). The stroke groove (50) is adapted to the limiting pin (11). The limiting pin (11) falls into the stroke groove (50) to allow the connector retainer (5) to move axially. The connecting pipe (6) has a tower-shaped connector (60) at its front end. The connecting pipe (6) is connected to the connector body (1) through the tower-shaped connector (60). The tower-shaped connector (60) is sealed to the sealing ring (2). The bottom surface of the tower-shaped connector (60) abuts against the bottom surface of the connector claw (3) to restrict the movement of the connecting pipe (6).

2. The rapid airtightness testing connector structure according to claim 1, characterized in that, The inner axial surface of the connector body (1) is provided with annular grooves (12) spaced apart. There are two sealing rings (2), which are respectively set in the annular grooves (12) on the inner axial surface of the connector body (1). The inner diameter of the sealing rings (2) is smaller than the maximum outer diameter of the tower-shaped connector (60).

3. The rapid airtightness testing connector structure according to claim 1, characterized in that, The number of the connector claws (3) is three, which are evenly distributed along the circumference of the connector body (1).

4. The rapid airtightness testing connector structure according to claim 1, characterized in that, The sealing ring (4) has a circular cross-section, and its outer diameter is larger than the outer surface of the connector claw (3).

5. The rapid airtightness testing connector structure according to claim 1, characterized in that, The tower-shaped connector (60) consists of two stacked cones (600), the cone angle of the two cones (600) of the tower-shaped connector (60) being 30° to 60°.

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