CN212434937U

CN212434937U - Stainless steel connector with seal structure

Info

Publication number: CN212434937U
Application number: CN202021671487.3U
Authority: CN
Inventors: 闫军; 夏海军
Original assignee: Sichuan Huafeng Enterprise Group Co
Current assignee: Sichuan Huafeng Technology Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-01-29
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a stainless steel connector with seal structure, including plug shell and socket shell, plug shell and socket shell grafting cooperation, and through coupling nut locking, first seal groove and second seal groove have been seted up on the plug shell, all install O type sealing washer in the first seal groove and in the second seal groove, the second seal groove is located between first seal groove and the contact terminal surface, and the diameter of second seal groove is greater than the diameter of first seal groove, the last horizontal straight seal face of hugging closely with first sealing washer that is provided with of socket shell, still be provided with the oblique seal face of hugging closely with the second sealing washer on the socket shell. The utility model has the advantages that: on the premise of not influencing the sealing performance, the sealing stroke during insertion is shortened, the sealing space formed after the headstock is inserted is large, the pressure generated by gas is small, and the reaction force is small, so that the headstock is easy to separate, the acting force received during connection and locking is small, the thread is prevented from being seized, and the applicability is stronger.

Description

Stainless steel connector with seal structure

Technical Field

The utility model relates to a watertight connector, especially a stainless steel connector with seal structure.

Background

At present, along with the continuous development of the navigation field, the watertight connector is continuously applied to the military field. The underwater shipboard equipment, the exploitation and detection equipment are applied more and more, and the application water depth is increased more and more. The sealing requirements for subsea sealed connectors are also increasing. Because underwater connectors necessarily have corrosion resistance requirements, most underwater sealed connectors are made of stainless steel, which has a unique characteristic: the connection of stainless steel threads is easy to cause seizure locking, particularly when the threads are stressed and driven to lock. In addition, after the plug and the socket are plugged for a period of time, the sealing space combined with the head seat is compressed by a part of air, the sealing ring and the metal form a stable extrusion combination, and the compressed air in the sealing space can generate a large reaction force. The plug and the socket of the sealing connector work for a long time in a plugging state, the counterforce is very large when the head seat is separated, the separation is difficult, and the manual operation is very inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a reduce stainless steel connector headstock separating force and prevent dead seal structure of screw thread seizure.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a stainless steel connector with seal structure, including plug shell and socket shell, plug shell and socket shell grafting cooperation, and lock through coupling nut, make socket shell's tail terminal surface support the contact terminal surface at plug shell, socket shell inner chamber and plug shell's head form seal space, first seal groove and second seal groove have been seted up on the plug shell, install first sealing washer in the first seal groove, install the second sealing washer in the second seal groove, the second seal groove is located between first seal groove and the contact terminal surface, and the diameter of second seal groove is greater than the diameter of first seal groove, be provided with the horizontal straight seal face of hugging closely with first sealing washer on the socket shell, still be provided with the oblique sealing face of hugging closely with the second sealing washer on the socket shell.

Preferably, a rear end groove wall of the second seal groove coincides with the contact end face.

Preferably, the socket shell is provided with an external thread, and the connecting nut is in threaded fit connection with the external thread.

Preferably, the outer circle of the plug shell is further provided with an annular groove, and a shaft retainer ring for preventing the connecting nut from loosening is arranged in the annular groove.

Preferably, the first sealing ring and the second sealing ring are both O-shaped sealing rings.

Preferably, the plug housing, the socket housing and the coupling nut are all made of stainless steel.

The utility model has the advantages of it is following: the utility model discloses a connector compares in ordinary seal structure's connector, and this kind of seal structure under the prerequisite that does not influence sealing performance, has shortened the sealed stroke when inserting, and the sealed space that the headstock formed after inserting closes is big, and the pressure that gas produced is little, and reaction force is little to make the headstock separation light, when connecting locking, the effort that receives is also less, prevents that the screw thread from stinging, and the suitability is stronger.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a plug housing;

FIG. 3 is a schematic structural view of a jack housing;

in the figure, 1-socket shell, 2-sealing space, 3-first sealing ring, 4-connecting nut, 5-first sealing groove, 6-second sealing groove, 7-second sealing ring, 8-shaft retainer ring, 9-plug shell, 10-inclined sealing surface, 11-horizontal straight sealing surface and 12-contact end surface.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, 2 and 3, a stainless steel connector with a sealing structure comprises a plug housing 9 and a socket housing 1, wherein the plug housing 9 is in insertion fit with the socket housing 1, further, an external thread is arranged on the socket housing 1, a coupling nut 4 is in threaded fit connection with the external thread, when the socket housing 1 and the plug housing 9 are well inserted, the coupling nut 4 is in threaded fit with the external thread, so that the plug housing 9 and the socket housing 1 are locked by the coupling nut 4, the tail end face of the socket housing 1 is abutted against the contact end face 12 of the plug housing 9, the inner cavity of the socket housing 1 and the head of the plug housing 9 form a sealing space 2, further, an annular groove is also arranged on the outer circle of the plug housing 9, a shaft retainer ring 8 for preventing the coupling nut 4 from loosening is arranged in the annular groove, when the coupling nut 4 is locked, the shaft retainer ring 8 is arranged in the annular groove, at this moment, the shaft retainer ring 8 blocks the rear end face of the connecting nut 4, so that the connecting nut 4 is prevented from loosening, in the embodiment, the plug shell 9, the socket shell 1 and the connecting nut 4 are made of stainless steel materials and have corrosion resistance, and the connector can be used in the navigation field, particularly underwater shipboard equipment, mining and detecting equipment.

In this embodiment, a first sealing groove 5 and a second sealing groove 6 are formed on a plug housing 9, the first sealing groove 5 and the second sealing groove 6 are both formed on an outer circle of the plug housing 9, and the first sealing groove 5 and the second sealing groove 6 are both annular grooves, a first sealing ring 3 is installed in the first sealing groove 5, a second sealing ring 7 is installed in the second sealing groove 6, the first sealing ring 3 and the second sealing ring 7 are both O-shaped sealing rings, further, a horizontal straight sealing surface 11 tightly attached to the first sealing ring 3 is provided on a sidewall of an inner cavity of the socket housing 1, an inclined sealing surface 10 tightly attached to the second sealing ring 7 is further provided on the socket housing 1, after the plug housing 9 is in plug-in fit with the socket housing 1, the first sealing ring 3 is pressed by the horizontal straight sealing surface 11 to form a horizontal straight surface seal, and the inclined sealing surface 10 presses the second sealing ring 7, thereby form the inclined plane sealed, wherein, the sealed guarantee that is first for the straight face of level is sealed, and the inclined plane is sealed for the sealed guarantee that says for the second to make the sealing performance of this connector obtain strengthening.

In this embodiment, the second sealing groove 6 is located between the first sealing groove 5 and the contact end surface 12, and the diameter of the second sealing groove 6 is greater than the diameter of the first sealing groove 5, so the second sealing groove 6 is higher than the first sealing groove 5, further, the first sealing groove 5 and the second sealing groove 6 are both close to the contact end surface 12, preferably, the rear groove wall of the second sealing groove 6 is overlapped with the contact end surface 12, so as to reduce the sealing stroke when the plug housing 9 and the socket housing 1 are inserted, and at the same time, after the first sealing groove 5 and the second sealing groove 6 move toward the contact end surface 12, so that the cavity of the sealing space 2 becomes larger, and can contain more gas, so that the pressure generated by the gas in the sealing space 2 is small, the release force is small, so that the plug housing 9 and the socket housing 1 are easily separated, when the plug housing 9 and the socket housing 1 are inserted, the reaction force received is also smaller, so that the thread is prevented from being seized, and the applicability is stronger.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a stainless steel connector with seal structure, includes plug shell and socket shell, the plug shell with the socket shell cooperation of pegging graft, and lock through coupling nut, makes the rear end face of socket shell supports the contact terminal surface of plug shell, the socket shell inner chamber with the head of plug shell forms confined space, its characterized in that: the plug comprises a plug shell and is characterized in that a first sealing groove and a second sealing groove are formed in the plug shell, a first sealing ring is installed in the first sealing groove, a second sealing ring is installed in the second sealing groove, the second sealing groove is located between the first sealing groove and the contact end face, the diameter of the second sealing groove is larger than that of the first sealing groove, a horizontal straight sealing surface tightly attached to the first sealing ring is arranged on the socket shell, and an oblique sealing surface tightly attached to the second sealing ring is further arranged on the socket shell.

2. A stainless steel connector with a sealing structure according to claim 1, wherein: and the rear end groove wall of the second sealing groove is superposed with the contact end surface.

3. A stainless steel connector with a sealing structure according to claim 2, wherein: the socket shell is provided with an external thread, and the connecting nut is in threaded fit connection with the external thread.

4. A stainless steel connector with a sealing structure according to claim 3, wherein: an annular groove is further formed in the outer circle of the plug shell, and a shaft check ring for preventing the connecting nut from loosening is mounted in the annular groove.

5. A stainless steel connector with a sealing structure according to any one of claims 1 to 4, wherein: the first sealing ring and the second sealing ring are O-shaped sealing rings.

6. A stainless steel connector with a sealing structure according to any one of claims 1 to 4, wherein: the plug shell, the socket shell and the connecting nut are all made of stainless steel materials.