Round watertight connector

Abstract

The utility model discloses a circular watertight connector, and belongs to the technical field of sealing connectors. A circular watertight connector comprises a shell, an insulator is arranged in the shell, a contact pin is arranged in the middle of the insulator in a penetrating mode, a plurality of grooves A are formed in the contact pin, sealing pieces A are arranged in the grooves A, and the sealing pieces A are connected with the outer wall of the contact pin and the inner wall of the insulator in a sealed mode; the outer wall of the insulator is provided with a plurality of grooves B. Sealing members B are arranged in the grooves B. The sealing members B are respectively connected with the outer wall of the insulator and the inner wall of the housing in a sealed manner. According to the utility model, the sealing members A, B, C and D are respectively cooperated with the watertight colloid to form a sealed space, thereby isolating the plugging interface environment of the electric connector from the external environment. Therefore, waterproof and moistureproof sealing functions are achieved. Wherein the watertight colloid can fill all gaps, so that the sealing effect can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed connectors, and more specifically to a circular watertight connector. Background Art

[0002] Watertight electrical connectors are widely used in marine scientific research, oil drilling, environmental monitoring, marine military industry and other fields. In underwater photography, deep-water communication and other communication projects, watertight connectors are key components for connecting signals inside and outside the ship. In these application scenarios, the waterproof and durability requirements for electrical connectors are very high. It is crucial to make the connector work properly underwater and have good waterproof and moisture-proof capabilities.

[0003] For example, the existing patent CN103227383A discloses a watertight connector, in which a sealing plug and a clamping ring are arranged at the plug of the connector so that the cable and the inner hole of the sheath are tightly matched to prevent water from entering the sheath. However, the socket of the connector is sealed only by the sealing ring on the flange, so that the sealing effect of the insulating seat and the pin in the socket is not good. In view of this, we propose a circular watertight connector. Utility Model Content

[0004] The purpose of the utility model is to provide a circular watertight connector to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circular watertight connector, comprising a housing, an insulator is arranged in the housing, a pin is arranged through the middle of the insulator, a plurality of grooves A are provided on the pin, a sealing member A is arranged in the groove A, and the sealing member A is respectively sealed and connected with the outer wall of the pin and the inner wall of the insulator;

[0007] The outer wall of the insulator is provided with a plurality of grooves B, and sealing members B are arranged in the grooves B. The sealing members B are respectively sealed and connected to the outer wall of the insulator and the inner wall of the shell.

[0008] Preferably, the gap between the groove A and the insulator is filled with colloid A, and the gap between the groove B and the shell is filled with colloid B, and both colloid A and colloid B are watertight glues.

[0009] Preferably, the insulator comprises an upper base and a lower base, and the upper base and the lower base are snap-connected;

[0010] An annular groove A is provided on the inner wall of the shell, an annular groove B is provided on the outer wall of the upper base, an open retaining ring is provided in the annular groove A, an annular retaining ring is provided in the annular groove B, and the inner diameter of the open retaining ring is smaller than the outer diameter of the annular retaining ring.

[0011] Preferably, the groove B is formed on the outer wall of the lower base.

[0012] Preferably, a plurality of grooves C are formed on the outer wall of the shell, a sealing member C is arranged in the groove C, a flange is arranged on one side of the upper base of the shell, a groove D is formed on the side of the flange close to the groove C, and a sealing member D is arranged in the groove D.

[0013] Preferably, a step hole is opened in the middle of the upper base, and a convex ring is arranged on the outer wall of the pin, and the convex ring can abut against the step hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model forms a closed space by using seals A, B, C and D to cooperate with watertight colloid to isolate the plug-in interface environment of the electrical connector from the external environment, thereby achieving waterproof and moisture-proof sealing functions. The watertight colloid can fill all gaps to further improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Explanation of the numbers in the figure: 1. Shell; 2. Seal D; 3. Open retaining ring; 4. Annular retaining ring; 5. Upper base; 6. Seal C; 7. Seal B; 8. Lower base; 9. Pin; 10. Seal A. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Example:

[0020] See also Figure 1 A circular watertight connector includes a shell 1, an insulator is arranged in the shell 1, a pin 9 is arranged through the middle of the insulator, a plurality of grooves A are opened on the pin 9, a seal A10 is arranged in the groove A, and the seal A10 is respectively sealed with the outer wall of the pin 9 and the inner wall of the insulator; the seal A10 achieves a sealing effect under the extrusion of the pin 9 and the shell 1.

[0021] The outer wall of the insulator is provided with a plurality of grooves B, and a seal B7 is provided in the groove B. The seal B7 is respectively sealed and connected to the outer wall of the insulator and the inner wall of the housing 1. The seal B7 achieves a sealing effect under the extrusion of the outer wall of the insulator and the housing 1. By providing the seal A10 and the seal B7, a sealing effect is achieved between the housing 1, the insulator and the pin 9, making the device suitable for use in underwater scenes.

[0022] The seals A10 and B7 are both O-rings.

[0023] In the present application, the gap between the groove A and the insulator is filled with colloid A, and the gap between the groove B and the housing 1 is filled with colloid B. Both colloid A and colloid B are watertight glues. The watertightness of the device can be further improved by matching the watertight glue with the seal A10 and the seal B7. Since the insulator and the housing are matched with a gap, there is still a small gap between them and the housing, so filling all gaps with a watertight colloid can further improve the sealing effect.

[0024] In the present application, the insulator includes an upper base 5 and a lower base 8, and the upper base 5 and the lower base 8 are clamped together; wherein the upper base 5 and the lower base 8 are provided with a keyway along the central axis direction, and the connection between the upper base 5 and the lower base 8 is realized by setting a key in the keyway, so that the upper base 5 and the lower base 8 cannot rotate relative to each other in the circumferential direction;

[0025] An annular groove A is provided on the inner wall of the shell 1, and an annular groove B is provided on the outer wall of the upper base 5. An open retaining ring 3 is arranged in the annular groove A, and an annular retaining ring 4 is arranged in the annular groove B. The inner diameter of the open retaining ring 3 is smaller than the outer diameter of the annular retaining ring 4. When the upper base 5 and the lower base 8 are connected, the open retaining ring 3 and the annular retaining ring 4 are in contact. By setting the open retaining ring 3 and the annular retaining ring 4, the upper base 5 and the lower base 8 are restricted in the axial position.

[0026] In the present application, a stepped hole is provided in the middle of the upper base 5, and a convex ring is provided on the outer wall of the pin 9, and the convex ring can be pressed against the stepped hole.

[0027] The groove B is formed on the outer wall of the lower base 8 , and the seal B7 realizes the sealing between the lower base 8 and the shell 1 .

[0028] In the present application, the outer wall of the housing 1 is provided with a plurality of grooves C, a seal C6 is provided in the groove C, the housing 1 is provided with a flange on one side of the upper base 5, a groove D is provided on the side of the flange close to the groove C, and a seal D2 is provided in the groove D. The seals C6 and D2 are also O-rings.

[0029] The housing 1 is perforated from the outside of the body so that the pins of the contact are inside the body. The flange of the housing 1 is connected to the installation interface by screws. After the screws are tightened, the seal is performed by squeezing the seal D2 in the groove D of the flange. The seal C6 on the housing 1 is squeezed with the hole of the outer cavity and sealed again, thereby achieving a good sealing effect.

[0030] In the present application, seals A10, B7, C6 and D2 cooperate with water-tight colloid to form a closed space, isolating the plug-in interface environment of the electrical connector from the external environment, thereby achieving a waterproof and moisture-proof sealing function.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A circular watertight connector, comprising a housing (1), characterized in that: An insulator is arranged in the housing (1), a plug pin (9) is arranged through the middle of the insulator, a plurality of grooves A are formed on the plug pin (9), a sealing member A (10) is arranged in the groove A, and the sealing member A (10) is respectively sealed and connected to the outer wall of the plug pin (9) and the inner wall of the insulator; The outer wall of the insulator is provided with a plurality of grooves B, and the grooves B are provided with sealing members B (7), and the sealing members B (7) are respectively sealed and connected to the outer wall of the insulator and the inner wall of the housing (1); The gap between the groove A and the insulator is filled with colloid A, and the gap between the groove B and the shell (1) is filled with colloid B.

2. A circular watertight connector according to claim 1, characterized in that: The colloid A and the colloid B are both water-tight glues.

3. A circular watertight connector according to claim 1, characterized in that: The insulator comprises an upper base (5) and a lower base (8), and the upper base (5) and the lower base (8) are clamped together; The inner wall of the shell (1) is provided with an annular groove A, the outer wall of the upper base (5) is provided with an annular groove B, an open retaining ring (3) is arranged in the annular groove A, and an annular retaining ring (4) is arranged in the annular groove B, and the inner diameter of the open retaining ring (3) is smaller than the outer diameter of the annular retaining ring (4).

4. A circular watertight connector according to claim 3, characterized in that: The groove B is formed on the outer wall of the lower base (8).

5. A circular watertight connector according to claim 3, characterized in that: The outer wall of the shell (1) is provided with a plurality of grooves C, and a sealing member C (6) is arranged in the groove C. The shell (1) is provided with a flange on one side of the upper base (5), and a groove D is provided on the side of the flange close to the groove C, and a sealing member D (2) is arranged in the groove D.

6. A circular watertight connector according to claim 3, characterized in that: A stepped hole is provided in the middle of the upper base (5), and a convex ring is provided on the outer wall of the insertion pin (9), and the convex ring can abut against the stepped hole.

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