CN213660727U - Sealing and limiting structure of connector protective shell - Google Patents

Abstract

The utility model discloses a sealing and limiting structure of a connector protective shell, which belongs to the technical field of connectors and comprises a connector shell, wherein the side wall of the connector shell is provided with a side hole, a sealing ring is arranged in the side hole, the screw is connected with a screw through a thread, the screw comprises a thread end with an external thread and a nut end, the side hole comprises a locking section in threaded connection with the thread end and a countersunk head section matched with the nut end, one end of the locking section close to the countersunk head section extends towards the countersunk head section to form an annular boss, an annular boss outer wall, an inner wall of the countersunk head section and the bottom surface of the countersunk head section are enclosed to form an integrally annular sealing groove, the sealing ring is arranged in the sealing groove, when the screw is locked with the thread of the locking section, the nut end is abutted against the surface of the annular boss and tightly presses the sealing ring in the sealing groove, the utility model has the advantages that the sealing, and the sealing ring is prevented from being extruded excessively to be separated from the shell.

Description

Sealing and limiting structure of connector protective shell

Technical Field

The utility model relates to a connector technical field specifically is a connector protective housing seals limit structure.

Background

In the electrical industry, data transmission is not always stable in the realization of various functions, so that the connector becomes an indispensable key part in the electrical field.

In the prior art, the working environment of the connector is different according to actual conditions, and challenges from various application environments are sequentially shown, wherein the sealing performance is the requirement which must be met by the connector. The common method is that a sealing ring is additionally arranged at the locking hole position of the connector shell and the internal connection, the sealing ring is tightly pressed by the aid of threaded connection of screws and the locking hole, the inside of the connector shell is isolated from the outside by the aid of the sealing ring, dust, moisture and the like are prevented from entering the connector, and accordingly stable and efficient operation of the connector is maintained.

However, when the screw comes into contact with the seal ring, the screw is locked too deeply, so that the seal ring is pressed and deformed, or even squeezed out by the screw, and the sealing performance of the connector housing is lowered.

Based on this, the utility model designs a sealed limit structure of connector protecting sheathing to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connector protective housing seals limit structure to solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a sealed limit structure of connector protective housing, includes the connector casing, the side opening is seted up to connector casing lateral wall, be equipped with sealing washer and threaded connection in the side opening and have the screw, the screw is including the thread end and the nut end that have the external screw thread, the side opening include with thread end threaded connection's locking section and with nut end complex countersunk head section, the one end that the locking section is close the countersunk head section extends towards the countersunk head section has an annular boss, enclose between annular boss outer wall, countersunk head section inner wall and the countersunk head section bottom surface and close to form wholly and be annular seal groove, the sealing washer is located in the seal groove, when screw and locking section screw thread locking, nut end and annular boss surface butt just compress tightly the sealing washer in the seal groove.

Preferably, the whole nut end is frustum-shaped, an inclined plane is formed on the side face of the nut end, an annular guide angle is formed in one side, close to the locking section, of the annular boss, and the annular guide angle is matched with the inclined plane.

Preferably, an arc-shaped lead angle is arranged at one end, facing the countersunk head section, of the annular boss.

Preferably, the bottom surface of the sealing groove is in arc transition and is embedded with the sealing ring.

Preferably, the side wall of the screw cap end is provided with an overall annular and internally arc-shaped excessive attaching groove, and the arc-shaped surface of the inner wall of the attaching groove is adapted to the surface of the sealing ring.

Compared with the prior art, the utility model discloses a following beneficial effect:

the utility model discloses simple structure, convenient to use is carried on spacingly by annular boss when the screw lock is put to annular boss to also compress tightly the sealing washer in the seal groove, conveniently realize sealedly, prevent that screw locking power is too big and extrude the sealing washer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram according to a first embodiment;

FIG. 2 is a schematic cross-sectional view of the first embodiment;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is a schematic partial structure diagram of a screw and a seal ring according to an embodiment;

fig. 5 is a partial structural schematic view of a screw and a seal ring according to a second embodiment.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a connector housing; 2. a connecting port; 3. a side hole; 31. a locking section; 311. an annular lead angle; 32. a countersink section; 33. an annular boss; 331. arc-shaped lead angles; 34. a sealing groove; 4. a seal ring; 5. a screw; 51. a threaded end; 52. a nut end; 521. an inclined surface; 522. and fitting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-5, the present embodiment provides a technical solution: the utility model provides a sealed limit structure of connector protective housing, is including the connector housing 1 that is the cuboid form, and the inside cavity of casing just forms two connectors 2 along length both ends, and a side opening 3 is seted up in connector housing 1 lateral wall middle part and the position that is located to be close one end connector 2, is equipped with sealing washer 4 and threaded connection in the side opening 3 has screw 5.

Specifically, the screw 5 includes a threaded end 51 and a nut end 52 with external threads, the side hole 3 includes a locking section 31 connected with the threaded end 51 in a threaded manner and communicated with the inside of the connector housing 1 and a countersunk section 32 matched with the nut end 52, the countersunk section 32 is connected with the outer wall of the connector housing 1, an annular boss 33 extends towards the countersunk section 32 from one end of the locking section 31 close to the countersunk section 32, an annular sealing groove 34 formed integrally by the outer wall of the annular boss 33, the inner wall of the countersunk section 32 and the bottom surface of the countersunk section 32 is enclosed, the sealing ring 4 is embedded in the sealing groove 34, and when the screw 5 is locked with the locking section 31 in a threaded manner, the nut end 52 is abutted to the surface of the annular boss 33 and compresses the sealing ring 4 in the sealing groove 34. In this embodiment, the sealing ring 4 is an annular sealing ring 4, and when the sealing ring 4 is placed in the sealing groove 34 and is not deformed by external force, the thickness of the sealing ring 4 is greater than the depth of the sealing groove 34, that is, part of the sealing ring 4 is exposed outside the sealing groove 34, so that the screw 5 firstly contacts the sealing ring 4 when being locked.

Preferably, in this embodiment, the nut end 52 is in a frustum shape as a whole, and an inclined surface 521 is formed on a side surface thereof, a cross section of the frustum gradually decreases along a direction toward the threaded end 51, an annular lead angle 311 is formed on a side of the annular boss 33 close to the locking section 31, and a side wall of the annular lead angle 311 is the same as and parallel to an inclined surface 521, so that when the screw 5 is gradually screwed and locked with the locking section 31, the side wall of the nut end 52 gradually contacts and is attached to the annular lead angle 311, and on one hand, a position of the screw 5 is guided and corrected, and the screw 5 is prevented from being skewed; on the other hand, the force applied to the entire dropped yarn is dispersed along the inclined surface 521, thereby preventing the dropped yarn from being damaged due to excessive force.

Preferably, the arc lead angle 331 is seted up towards the one end of countersunk head section 32 to annular boss 33 to can contact better with the nut end 52 that has inclined plane 521, prevent that too sharp-pointed corner and screw 5 from taking place rigid connection and leading to the condition of damage, fracture, and the arc lead angle 331 edge can adapt to better with sealing washer 4, prevents that sealing washer 4 from receiving the destruction of sharp-pointed corner.

Preferably, the bottom surface of the sealing groove 34 is in arc transition and is embedded with the sealing ring 4, so that the sealing ring 4 can be better attached to the sealing groove 34, the sealing ring 4 is further attached to the edge of the sealing groove 34 after being pressed into the sealing groove 34 by the screw 5, the gap reserved between the countersunk section 32 and the locking section 31 is sufficiently reduced, and the overall sealing performance of the connector housing 1 is improved.

Preferably, the nut end 52 side wall is provided with a whole annular and inside excessive laminating groove 522 that is the arc, and the arc surface of laminating groove 522 inner wall suits with sealing washer 4 surface, from this, can make nut end 52 and sealing washer 4 further closely laminate to further reduce the gap, strengthen the holistic leakproofness of connector housing 1.

One specific application of this embodiment is:

firstly, the sealing ring 4 is placed into the countersunk head section 32 of the side wall of the connector housing 1, external force is applied to enable the sealing ring 4 to be embedded into the sealing groove 34 and pre-attached to the arc transition surface of the sealing groove 34, then the threaded end 51 of the screw 5 is locked into the locking section 31 by using a corresponding tool, the inclined surface 521 of the nut end 52 is firstly contacted with the sealing ring 4 along with the continuous locking of the screw 5, the sealing ring 4 is extruded to generate deformation, the nut end 52 continues to go deep and is finally abutted to the annular boss 33, at the moment, the sealing ring 4 is tightly attached to the sealing groove 34 and the attaching groove 522 under the extrusion of the nut end 52, so that the gap between the countersunk head section 32 and the locking section 31 is fully filled, and the sealing protection process of the connector housing 1 is completed.

Example two

Referring to fig. 5, the present embodiment provides a technical solution, and a sealing and limiting structure of a connector protective housing, which is different from the first embodiment in that a nut end 52 is integrally cylindrical, a side wall of the nut end 52 facing a sealing ring 4 is provided with an attachment groove 522 which is integrally annular and has an inner arc-shaped transition, and an arc-shaped surface of an inner wall of the attachment groove 522 is adapted to a surface of the sealing ring 4.

To sum up, the utility model has the advantages of can conveniently realize the sealed of connector housing 1, and prevent that sealing washer 4 from receiving excessive extrusion and deviating from.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims (5)

1. The utility model provides a sealed limit structure of connector protecting sheathing, includes connector housing (1), side opening (3) are seted up to connector housing (1) lateral wall, be equipped with sealing washer (4) and threaded connection in side opening (3) have screw (5), its characterized in that: screw (5) are including thread end (51) and nut end (52) that have the external screw thread, side opening (3) include with thread end (51) threaded connection locking section (31) and with nut end (52) complex heavy head section (32), locking section (31) are close the one end of heavy head section (32) and are extended towards heavy head section (32) and have an annular boss (33), enclose between annular boss (33) outer wall, heavy head section (32) inner wall and heavy head section (32) bottom surface and form whole annular seal groove (34) that is, seal groove (34) are located in seal ring (4), when screw (5) and locking section (31) screw locking, nut end (52) and annular boss (33) surface butt just compress tightly seal ring (4) in seal groove (34).

2. The sealing and spacing structure for the connector protective shell according to claim 1, wherein: the nut end (52) is integrally frustum-shaped, an inclined surface (521) is formed on the side surface of the nut end, an annular guide angle (311) is formed in one side, close to the locking section (31), of the annular boss (33), and the annular guide angle (311) is matched with the inclined surface (521).

3. The sealing and spacing structure for the connector protective shell according to claim 1, wherein: and an arc-shaped lead angle (331) is arranged at one end, facing the countersunk head section (32), of the annular boss (33).

4. The sealing and spacing structure for the connector protective shell according to claim 1, wherein: the bottom surface of the sealing groove (34) is in arc transition and is embedded with the sealing ring (4).

5. The sealing and spacing structure for the connector protective shell according to claim 1, wherein: the side wall of the nut end (52) is provided with an overall annular bonding groove (522) with an arc transition inside, and the arc surface of the inner wall of the bonding groove (522) is adapted to the surface of the sealing ring (4).

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