CN111509467A - Protective cover and connector assembly using same - Google Patents

Protective cover and connector assembly using same Download PDF

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Publication number
CN111509467A
CN111509467A CN202010463938.2A CN202010463938A CN111509467A CN 111509467 A CN111509467 A CN 111509467A CN 202010463938 A CN202010463938 A CN 202010463938A CN 111509467 A CN111509467 A CN 111509467A
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CN
China
Prior art keywords
cover body
radial direction
piece
jacking
radial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010463938.2A
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Chinese (zh)
Other versions
CN111509467B (en
Inventor
陈明
刘乃常
韩云钊
王旭涛
武学顺
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China Aviation Optical Electrical Technology Co Ltd
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China Aviation Optical Electrical Technology Co Ltd
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Publication date
Application filed by China Aviation Optical Electrical Technology Co Ltd filed Critical China Aviation Optical Electrical Technology Co Ltd
Priority to CN202010463938.2A priority Critical patent/CN111509467B/en
Publication of CN111509467A publication Critical patent/CN111509467A/en
Application granted granted Critical
Publication of CN111509467B publication Critical patent/CN111509467B/en
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Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/5025—Bases; Cases composed of different pieces one or more pieces being of resilient material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention relates to a protective cover and a connector assembly using the same. The protective cover comprises a cover body, the front end of the cover body is used for being inserted into the connector shell, and the front end of the cover body is provided with a sealing structure which is used for being in sealing fit with the connector shell; the outer peripheral surface of the cover body is provided with a limiting groove, the limiting groove comprises a front groove wall, and the front groove wall is used for being in blocking fit with the radial moving piece along the front and back direction so as to prevent the protective cover from being pulled out of the connector shell backwards; the protective cover also comprises a jacking part arranged on the cover body, the rear end of the jacking part is fixedly arranged on the cover body, the front end of the jacking part extends to a position corresponding to the radial direction of the front groove wall, and the front end can elastically swing along the radial direction of the cover body; or the jacking part can reciprocate along the radial direction of the cover body, the jacking part is arranged corresponding to the front groove wall in the radial direction, and the protective cover further comprises an elastic part pushing the jacking part inwards along the radial direction of the cover body.

Description

Protective cover and connector assembly using same
Technical Field
The invention relates to a protective cover and a connector assembly using the same.
Background
After the connector is fixed on the equipment panel, the opening of the plugging end of the connector is plugged by the protective cover, and the common protective cover only can play a dustproof function and cannot realize waterproof sealing.
To achieve a waterproof sealing of the boot to the connector, two forms of boot are provided in the prior art: the utility model provides a be threaded connection's form, the protection casing includes that the rear end is sealed, the open-ended cover body in front end, sets up in the internal thread on the internal face of the cover body, still is equipped with the sealing washer that is used for with the connector housing seal, and during the use, cover body screw assembly is in the outside of connector housing to realize the sealed cooperation of cover body and connector housing through the sealing washer.
The other type is a plug-in type protective cover, as shown in the chinese patent application with application publication No. CN109149229A, the protective cover integrally includes a cover body with a closed rear end and an open front end, the front end of the cover body is inserted into the connector housing when in use, and the outer peripheral surface of the front end of the cover body is in sealing fit with a sealing ring on the inner wall surface of the connector housing to perform waterproof sealing on the connector. The cover body is externally provided with a protective locking sleeve in a sliding manner along the front-back direction, the protective locking sleeve realizes limitation through a shaft shoulder and a front stop bulge, a reset pressure spring is arranged between the protective locking sleeve and the shaft shoulder, and the reset pressure spring pushes the protective locking sleeve forwards. The outer peripheral surface of the cover body is further provided with a positioning groove, the positioning groove can be used for a movable unit (namely, a lock ball and an elastic cantilever in the patent application, the lock ball can move on the connector shell in the radial direction, the elastic cantilever can swing on the connector shell in the radial direction, and the front end of the elastic cantilever is provided with a protrusion facing inwards in the radial direction) in the connector to enter, and is in blocking fit with the movable unit in the front-back direction. And the protective locking sleeve extends to a position corresponding to the radial direction of the positioning groove. When the protective cover is used, the protective cover is pushed forwards, the outer peripheral surface of the front end of the cover body radially pushes the movable unit outwards, so that the movable unit can overcome the reset pressure spring and push the protective locking sleeve backwards, along with the forward pushing of the protective cover, the movable unit falls into the positioning groove and is in stop fit with the front end and the rear end of the positioning groove, the protective locking sleeve resets under the action of the reset pressure spring, and the movable unit is kept in the positioning groove.
Wherein, first kind of protection casing needs adopt the screw thread to connect, and the dismouting is inconvenient, still need process the screw thread on protection casing and connector housing, and the cost is higher, but also need reserve installation space for the installation protection casing in whole communication equipment, and the sealing washer also receives torsion easily and takes place to warp in rotatory installation. The waterproof sealing to the connector can be realized through the mode of push-and-pull locking to the protection casing of second kind, but protection locking cover needs the back-and-forth movement when using, need provide the space for the back-and-forth movement of protection lock sleeve, leads to the axial dimension of protection casing great, needs reserve great axial space in whole communication equipment.
Disclosure of Invention
The invention aims to provide a protective cover, which aims to solve the technical problems that the protective cover in the prior art is large in axial size and large in required axial space; a connector assembly using the protective cover is also provided to solve the technical problem.
In order to achieve the purpose, the technical scheme of the protective cover is as follows: a protective cover, comprising:
the mask body is closed at one end and opened at the other end, the closed end is taken as the rear end, and the opened end is taken as the front end;
the front end of the cover body is used for being inserted into the connector shell, and the front end of the cover body is provided with a sealing structure which is used for being in sealing fit with the connector shell;
the outer peripheral surface of the cover body is provided with a limiting groove, the limiting groove is used for a radial moving part in the connector shell to fall into, the limiting groove comprises a front groove wall, and the front groove wall is used for being matched with the radial moving part in a blocking mode along the front-back direction so as to prevent the protective cover from being pulled out of the connector shell backwards;
the protection casing still includes:
the jacking piece is arranged on the cover body, the rear end of the jacking piece is fixedly arranged on the cover body, the front end of the jacking piece extends to a position corresponding to the radial direction of the front groove wall, and the front end of the jacking piece can elastically swing along the radial direction of the cover body; or the jacking part can reciprocate along the radial direction of the cover body, the jacking part is arranged corresponding to the front groove wall in the radial direction, and the protective cover further comprises an elastic part pushing the jacking part inwards along the radial direction of the cover body;
when the cover body is inserted into the connector and pulled out of the connector, the jacking piece can be pushed by the radial moving piece to form a channel for the radial moving piece to pass through between the jacking piece and the limiting groove, so that the radial moving piece enters the limiting groove and is separated from the limiting groove; after the radial moving part falls into the limiting groove, the jacking piece can elastically reset radially inwards and jacks and locks the radial moving part in the limiting groove.
The invention has the beneficial effects that: in the invention, the jacking member swings along the radial direction of the cover body or moves along the radial direction of the cover body to realize avoidance and elastic jacking of the radial moving member, compared with the mode of moving along the axial direction of the cover body in the prior art, when the communication device is used, the jacking member does not need to move along the axial direction on the whole, and the distance and the space for front-back (axial) movement do not need to be reserved on the protective cover, so that the whole axial direction of the protective cover can be smaller, for the whole communication device, the space for movement and arrangement of the jacking member in the protective cover is also not needed, and the communication device can be made more compact.
Further, the top pressure piece includes:
the elastic pressing sheets are arranged at intervals along the circumferential direction of the cover body, the rear end of each elastic pressing sheet is fixedly arranged on the cover body, and the front end of each elastic pressing sheet can elastically swing along the radial direction of the cover body. The elastic pressing sheet with the fixed rear end and the radially swinging front end is adopted to elastically avoid and elastically press the radially moving part, so that the structure is simple to process, and the processing is more convenient.
Further, the top pressure piece still includes:
the inner flange is arranged on the inner side of the elastic pressing piece, the inner flange is arranged on the outer peripheral surface of the cover body, and the elastic pressing piece is arranged on the cover body through the inner flange.
Furthermore, the inner flange and the elastic pressing sheet are integrally cast and molded on the cover body;
at least two limiting grooves are arranged at intervals along the circumferential direction of the cover body, the limiting grooves penetrate through the inner flange, and the rear ends of the limiting grooves extend to the end part of the rear end of the cover body. The protective cover is manufactured by adopting an integral casting molding mode, the processing is simple, the protective cover can be manufactured by adopting cheap materials such as plastics and the like, the cost is lower, and the elastic force of the elastic pressing sheet can be ensured.
Furthermore, the front groove wall is an inclined groove wall which extends from back to front and is inclined from inside to outside along the radial direction of the cover body. The inclined groove wall is arranged, so that the inclined groove wall can facilitate the radial moving part to be separated from the limiting groove when the protective cover is separated from the connector; on the other hand, the protective cover adopts an integrated casting molding mode, so that the demolding of the rear mold is facilitated when the front mold and the rear mold are separated during the molding of the protective cover.
Furthermore, the inner flange is assembled on the cover body in a threaded mode, the elastic pressing sheet is arranged on the inner flange, at least two limiting grooves are arranged at intervals along the circumferential direction of the cover body, or the limiting grooves are annular grooves extending along the circumferential direction.
Furthermore, a direction-changing slope surface is arranged on the inner side of the front end of the elastic pressing piece, and the direction-changing slope surface is used for pushing the elastic pressing piece outwards in the radial direction when the radial moving piece and the direction-changing slope surface are in pushing fit in the front-back direction. When the radial moving piece is matched with the elastic pressing piece in a front-back pushing mode, the direction-changing slope surface is beneficial to changing the axial force into a radial force, and therefore the elastic pressing piece is driven to swing in the radial direction.
Furthermore, the protective cover also comprises a holding sleeve which is arranged on the cover body and sleeved outside the jacking piece, and the rear end of the holding sleeve is arranged in parallel with the rear end of the cover body. After the holding sleeve is arranged, an operator can conveniently hold the cover body, and the rear end of the cover body is integrally free of leakage.
Further, the shield includes:
the sleeve bodies are sleeved outside the cover body at intervals along the radial direction of the cover body;
the jacking part moves along the radial direction of the cover body and is assembled on the cover body, and the elastic part used for driving the jacking part to move inwards in the radial direction is arranged between the cover body and the jacking part.
The technical scheme of the connector assembly is as follows: a connector assembly comprising:
the connector comprises a connector shell, wherein at least two radial moving pieces are arranged on the connector shell at intervals along the circumferential direction;
a protective cover, comprising:
the mask body is closed at one end and opened at the other end, the closed end is taken as the rear end, and the opened end is taken as the front end;
the front end of the cover body is used for being inserted into the connector shell, and the front end of the cover body is provided with a sealing structure which is used for being in sealing fit with the connector shell;
the outer peripheral surface of the cover body is provided with a limiting groove, the limiting groove is used for a radial moving part in the connector shell to fall into, the limiting groove comprises a front groove wall, and the front groove wall is used for being matched with the radial moving part in a blocking mode along the front-back direction so as to prevent the protective cover from being pulled out of the connector shell backwards;
the protection casing still includes:
the jacking piece is arranged on the cover body, the rear end of the jacking piece is fixedly arranged on the cover body, the front end of the jacking piece extends to a position corresponding to the radial direction of the front groove wall, and the front end of the jacking piece can elastically swing along the radial direction of the cover body; or the jacking part can reciprocate along the radial direction of the cover body, the jacking part is arranged corresponding to the front groove wall in the radial direction, and the protective cover further comprises an elastic part pushing the jacking part inwards along the radial direction of the cover body;
when the cover body is inserted into the connector and pulled out of the connector, the jacking piece can be pushed by the radial moving piece to form a channel for the radial moving piece to pass through between the jacking piece and the limiting groove, so that the radial moving piece enters the limiting groove and is separated from the limiting groove; after the radial moving part falls into the limiting groove, the jacking piece can elastically reset radially inwards and jacks and locks the radial moving part in the limiting groove.
The invention has the beneficial effects that: in the invention, the jacking member swings along the radial direction of the cover body or moves along the radial direction of the cover body to realize avoidance and elastic jacking of the radial moving member, compared with the mode of moving along the axial direction of the cover body in the prior art, when the communication device is used, the jacking member does not need to move along the axial direction on the whole, and the distance and the space for front-back (axial) movement do not need to be reserved on the protective cover, so that the whole axial direction of the protective cover can be smaller, for the whole communication device, the space for movement and arrangement of the jacking member in the protective cover is also not needed, and the communication device can be made more compact.
Further, the top pressure piece includes:
the elastic pressing sheets are arranged at intervals along the circumferential direction of the cover body, the rear end of each elastic pressing sheet is fixedly arranged on the cover body, and the front end of each elastic pressing sheet can elastically swing along the radial direction of the cover body. The elastic pressing sheet with the fixed rear end and the radially swinging front end is adopted to elastically avoid and elastically press the radially moving part, so that the structure is simple to process, and the processing is more convenient.
Further, the top pressure piece still includes:
the inner flange is arranged on the inner side of the elastic pressing piece, the inner flange is arranged on the outer peripheral surface of the cover body, and the elastic pressing piece is arranged on the cover body through the inner flange.
Furthermore, the inner flange and the elastic pressing sheet are integrally cast and molded on the cover body;
at least two limiting grooves are arranged at intervals along the circumferential direction of the cover body, the limiting grooves penetrate through the inner flange, and the rear ends of the limiting grooves extend to the end part of the rear end of the cover body. The protective cover is manufactured by adopting an integral casting molding mode, the processing is simple, the protective cover can be manufactured by adopting cheap materials such as plastics and the like, the cost is lower, and the elastic force of the elastic pressing sheet can be ensured.
Furthermore, the front groove wall is an inclined groove wall which extends from back to front and is inclined from inside to outside along the radial direction of the cover body. The inclined groove wall is arranged, so that the inclined groove wall can facilitate the radial moving part to be separated from the limiting groove when the protective cover is separated from the connector; on the other hand, the protective cover adopts an integrated casting molding mode, so that the demolding of the rear mold is facilitated when the front mold and the rear mold are separated during the molding of the protective cover.
Furthermore, the inner flange is assembled on the cover body in a threaded mode, the elastic pressing sheet is arranged on the inner flange, at least two limiting grooves are arranged at intervals along the circumferential direction of the cover body, or the limiting grooves are annular grooves extending along the circumferential direction.
Furthermore, a direction-changing slope surface is arranged on the inner side of the front end of the elastic pressing piece, and the direction-changing slope surface is used for pushing the elastic pressing piece outwards in the radial direction when the radial moving piece and the direction-changing slope surface are in pushing fit in the front-back direction. When the radial moving piece is matched with the elastic pressing piece in a front-back pushing mode, the direction-changing slope surface is beneficial to changing the axial force into a radial force, and therefore the elastic pressing piece is driven to swing in the radial direction.
Furthermore, the protective cover also comprises a holding sleeve which is arranged on the cover body and sleeved outside the jacking piece, and the rear end of the holding sleeve is arranged in parallel with the rear end of the cover body. After the holding sleeve is arranged, an operator can conveniently hold the cover body, and the rear end of the cover body is integrally free of leakage.
Further, the shield includes:
the sleeve bodies are sleeved outside the cover body at intervals along the radial direction of the cover body;
the jacking part moves along the radial direction of the cover body and is assembled on the cover body, and the elastic part used for driving the jacking part to move inwards in the radial direction is arranged between the cover body and the jacking part.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of a connector assembly of the present invention;
FIG. 2 is a perspective view of the shield of FIG. 1;
FIG. 3 is a front view of the shield of FIG. 1;
FIG. 4 is a schematic view of section A-A of FIG. 3;
FIG. 5 is a schematic view of section B-B of FIG. 3;
FIG. 6 is a rear view of the shield of FIG. 1;
fig. 7 is a front view of the shield of embodiment 2 of the connector assembly of the present invention;
FIG. 8 is a schematic view of section C-C of FIG. 7;
fig. 9 is a cross-sectional view of the shield in embodiment 3 of the connector assembly of the present invention;
description of reference numerals: 100-a connector; 11-a connector housing; 12-a sealing ring; 13-locking the ball; 200-a protective cover; 21-a cover body; 22-a grip sleeve; 23-inner flange; 24-avoiding holes; 25-elastic tabletting; 26-anti-rotation error-proofing key; 27-a limiting groove; 28-front slot wall; 29-redirecting the slope; 300-a protective cover; 31-a cover; 32-inner flange; 33-elastic tabletting; 34-a grip sleeve; 35-a limiting block; 36-a pressure spring; 400-protective cover; 41-cover body; 42-a limit groove; 43-a sheath body; 44-tabletting; 45-pressure spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention 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 figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Specific embodiment 1 of the connector assembly of the present invention:
as shown in fig. 1 to 6, the connector assembly includes a connector 100 and a protective cover 200, and the protective cover 200 closes a plugging opening of the connector 100 to prevent dust and water during shipment, transportation, and sale of the connector 100.
The connector 100 is a conventional product, and will not be described in detail in this embodiment, and is selected according to the requirement. As shown in fig. 1, the connector 100 includes a connector housing 11, and one end of the connector housing 11 has a plugging opening for plugging with an adapter housing of an adapter connector. A contact element (not shown) is arranged in the connector housing 11, and a ring groove is arranged on the inner wall of the connector housing 11, and a sealing ring 12 is arranged in the ring groove. Three locking balls 13 are uniformly distributed on the connector housing 11 along the circumferential direction of the connector housing 11, the locking balls 13 are mounted on the wall of the connector housing 11, the diameter of the locking balls 13 is larger than the thickness of the wall of the connector housing 11, and the locking balls 13 have a certain amount of movement in the radial direction of the connector housing 11, but cannot be disengaged.
The structure of the protective hood 200 is as shown in fig. 2 to 6, the protective hood 200 includes a hood body 21, the hood body 21 is barrel-shaped with one end closed and one end open, the end defining the opening in the hood body 21 is a front end, and the closed end is a rear end. As shown in fig. 3, the front end of the cover 21 can be inserted into the connector housing 11, and the outer peripheral surface of the front end of the cover 21 can be sealed with the sealing ring 12 on the connector housing 11, so as to prevent water and dust from entering the connector 100. And a section of the cover body 21 for sealing engagement with the seal ring 12 forms a seal section, which is a seal structure for sealing engagement with the connector housing 11.
In order to lock the protection cover 200 on the connector housing 11 and prevent accidental falling, as shown in fig. 3, 4 and 5, six limiting grooves 27 are uniformly distributed on the outer circumferential surface of the cover body 21, and the limiting grooves 27 are arranged at the rear of the sealing section. The stopper groove 27 extends rearward to the rear end portion of the cover body 21, so that the stopper groove 27 includes a front groove wall 28 at the front end and circumferential groove walls (not marked in the drawings) at both circumferential sides. As shown in fig. 4, the front slot wall 28 is an arc-shaped inclined slot wall, the inclined direction is from back to front and from inside to outside along the radial direction of the cover body 21, and the arc-shaped center of the arc-shaped inclined slot wall is located at the radial outside of the arc-shaped inclined slot wall.
The limiting groove 27 is used for the lock ball 13 to fall into, and the front groove wall 28 and the lock ball 13 can be in stop fit in the front-rear direction, so as to prevent the shield 200 from falling off from the connector housing 11 accidentally. In order to ensure that the lock ball 13 is retained in the retaining groove 27, as shown in fig. 4, a pressing member is disposed outside the housing 21, presses the lock ball 13 in the radial direction of the housing 21 after the lock ball 13 falls into the retaining groove 27, and is disengaged from the retaining groove 27 when the lock ball 13 enters the retaining groove 27 and the shield 200 is unlocked from the connector 100. The jacking part in the embodiment comprises elastic pressing pieces 25, the elastic pressing pieces 25 are arranged outside the cover body 21 at intervals along the radial direction of the cover body 21, six elastic pressing pieces 25 are uniformly distributed along the circumferential direction, and the six elastic pressing pieces 25 correspond to the six limiting grooves 27 in the radial direction one by one. As shown in fig. 4, the front end of the elastic pressing piece 25 is located in front of the front groove wall 28, so that the elastic pressing piece 25 can press against the locking ball 13 when the locking ball 13 is in front-rear stop engagement with the front groove wall 28. Of course, in other embodiments, the front end of the elastic pressing piece may be arranged flush with the front groove wall, or slightly behind the front groove wall, as long as the elastic pressing piece can be pressed against the lock ball along the radial direction.
As shown in fig. 4, the inner side of the front end of the elastic pressing piece 25 is provided with a redirection slope 29, and the redirection slope 29 has the function that when the locking ball 13 moves backwards relative to the elastic pressing piece 25, the locking ball 13 and the elastic pressing piece 25 are pushed and matched along the front-back direction, and the locking ball 13 pushes the elastic pressing piece 25 to swing radially outwards, so that a channel for the locking ball 13 to pass through is formed between the cover body 21 and the elastic pressing piece 25.
As shown in fig. 4, the elastic pressing pieces 25 are arranged on the cover body 21 by the inner flange 23, specifically, the inner flange 23 is arranged on the outside of the cover body 21, and the rear ends of six elastic pressing pieces 25 are circumferentially uniformly distributed on the inner flange 23.
In this embodiment, the elastic pressing piece 25, the inner flange 23 and the cover body 21 are integrally molded by casting, specifically, a front mold and a rear mold surrounding in the front-rear direction are used, the limiting groove 27 is formed by the rear mold, and in order to perform demolding, as shown in fig. 3 and 6, an avoiding hole 24 is formed in the inner flange 23 to avoid the rear mold. While the design of the front slot wall 28 as an arc-shaped sloping slot wall also facilitates demoulding. The invention adopts plastic and other cheap materials to integrally form the protective cover 200, thus having lower cost.
For the convenience of holding, as shown in fig. 2 to 6, a holding sleeve 22 is integrally formed outside the inner flange 23, the holding sleeve 22 is sleeved outside the inner flange 23 and the elastic pressing piece 25, and in order to surround the rear end of the cover body 21, the rear end of the holding sleeve 22 is flush with the rear end of the cover body 21, or the rear end of the holding sleeve 22 is located behind the rear end of the cover body 21. The grip sheath 22 also encloses the resilient tab 25. The grip sleeve 22 is spaced radially from the resilient tab 25 to provide space for the resilient tab 25 to swing radially outward. The front end of the grip sleeve 22 is located rearward of the front end of the cover body 21 so that the front end of the cover body 21 is arranged to protrude forward.
Because the spacing groove 27 has six along the circumference equipartition, in order to guarantee that the spacing groove 27 can correspond with the lock ball 13 on the connector housing 11, as shown in fig. 3 and 5, the outside integrated into one piece of the cover body 21 has two anti-rotation anti-mistake keys 26, and two anti-rotation anti-mistake keys 26 are evenly distributed along the circumference of the cover body 21, and the anti-rotation anti-mistake keys 26 are arranged between two corresponding spacing grooves 27. The anti-rotation anti-error key 26 is used for preventing the anti-rotation anti-error key 26 from being inserted into the connector housing 11 in a matching way with the key groove on the inner wall of the connector housing 11, so that the lock ball 13 and the three limit grooves 27 are arranged in a circumferential direction, and the protective cover 200 and the connector housing 11 are prevented from rotating relatively.
The use process of the invention is as follows: the protective cover 200 is moved from back to front, the cover body 21 is inserted into the connector housing 11, and the outer peripheral surface of the front end of the cover body 21 is in sealing fit with the seal ring 12, so that the connector 100 is waterproof and dustproof. In the process of inserting, the lock ball 13 pushes the elastic pressing piece 25 to swing radially outwards, the lock ball 13 enters the limiting groove 27, and the elastic pressing piece 25 elastically resets and presses against the lock ball 13 to keep the lock ball 13 in the limiting groove 27.
In this embodiment, the locking balls 13 form a radially movable member that is radially movable on the connector housing 11. Of course, in other embodiments, the end of the connector housing is provided with a spring arm and the radially movable member is a protrusion disposed at the end of the spring arm. In particular, the elastic cantilever of the prior art cited in the background.
Embodiment 2 of the connector assembly of the present invention:
as shown in fig. 7 and 8, in embodiment 1, the protective cover is integrally formed, in this embodiment, the protective cover 300 is formed by a plurality of components in a separate body, specifically, the protective cover 300 includes a cover body 31, the structure of the cover body 31 is similar to that of embodiment 1, a limiting groove (not shown) is formed on the outer peripheral surface of the cover body 31, a plurality of limiting blocks 35 are integrally formed on the outer peripheral surface of the rear end of the cover body 31, the rear ends of the limiting blocks 35 are inclined planes, and the front ends are straight planes. An inner flange 32 is assembled on the outer portion of the cover body 31 in an interference fit mode, a plurality of elastic pressing pieces 33 are fixed on the inner flange 32, and the elastic pressing pieces 33 correspond to the limiting grooves. The elastic pressing piece 33 may be welded to the inner flange 32, or may be integrally formed on the inner flange 32. A grip sleeve 34 is also secured to the exterior of the inner flange 32, the grip sleeve 34 being integrally formed on the inner flange 32.
In this embodiment, the inner flange 32, the elastic pressing piece 33 and the holding sleeve 34 are integrally molded by plastic casting, and during assembly, the inner flange 32 is sleeved in the cover body 31 from back to front, and when passing through the limiting block 35, the inner flange 32 has a certain elastic deformation, and is elastically reset after passing through the limiting block 35, and the inner flange 32 is prevented from being pulled out backwards by the front end straight surface of the limiting block 35. In order to ensure that the inner flange 32 does not move back and forth when in use, a compression spring 36 is arranged between the inner flange 32 and the cover body 31, and the compression spring 36 presses the inner flange 32 towards the back.
The limiting groove in this embodiment may be the same as that in embodiment 1, that is, a plurality of limiting grooves are uniformly distributed along the circumferential direction, or may be a ring groove arranged around a circumference along the circumferential direction.
In other embodiments, the inner flange may be separately mounted to the exterior of the housing by a threaded fit.
Embodiment 3 of the connector assembly of the present invention:
as shown in fig. 9, in embodiments 1 and 2, both the elastic pressing piece has a structure with a fixed rear end and a radially swingable front end, and a passage is provided for the entry and exit of the lock ball by the radially outward swing of the front end, and the lock ball is retained in the retaining groove by the elastically returning inward swing of the front end. In this embodiment, the protective cover 400 includes the cover body 41, the limiting groove 42 has been seted up on the outer peripheral face of the cover body 41, the cover body 43 is equipped with to the outside cover of the cover body 41, the cover body 43 is arranged on the cover body 41 through the inner flange, the position that corresponds limiting groove 42 on the inner wall of the cover body 43 is provided with the preforming 44, the preforming 44 is arranged on the cover body 43 through the elasticity of pressure spring 45, the preforming 44 can be along the radial elastic movement of the cover body 41, can radially outwards move, in order to give way the passageway for the lock ball, also can radially inwards move under the effect of pressure spring 45, compress tightly the lock ball. The compression spring 45 in this embodiment forms an elastic member that presses the pressing piece 44, and in other embodiments, the elastic member may be a rubber band or the like.
The sheath body 43 in this embodiment can be held by an operator.
Of course, in other embodiments, in order to guide the movement of the pressing sheet, a radial groove may be formed on the inner wall of the sleeve, a pressure spring and a guide block are disposed in the radial groove, the guide block is connected to the pressing sheet, and the pressing sheet is guided by the cooperation between the guide block and the groove wall of the radial groove.
Embodiment 4 of the connector assembly of the present invention:
in the above embodiments, when the plurality of limiting grooves are circumferentially arranged, the number of the limiting grooves is greater than the number of the radial moving members on the connector, and is twice the number of the radial moving members.
Specific embodiment 5 of the connector assembly of the present invention:
in embodiment 1, the front groove wall of the limiting groove is an arc-shaped inclined groove wall, in this embodiment, the front groove wall may be a straight inclined groove wall, or the front groove wall may not be arranged in an inclined manner, that is, the front groove wall is arranged in a manner of extending along the radial direction of the cover body.
The specific embodiment of the protective cover of the invention is as follows:
the structure of the shield is the same as that of the shield in the connector assemblies in the above embodiments, and is not described herein again.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (10)

1. A protective cover, comprising:
the mask body is closed at one end and opened at the other end, the closed end is taken as the rear end, and the opened end is taken as the front end;
the front end of the cover body is used for being inserted into the connector shell, and the front end of the cover body is provided with a sealing structure which is used for being in sealing fit with the connector shell;
the outer peripheral surface of the cover body is provided with a limiting groove, the limiting groove is used for a radial moving part in the connector shell to fall into, the limiting groove comprises a front groove wall, and the front groove wall is used for being matched with the radial moving part in a blocking mode along the front-back direction so as to prevent the protective cover from being pulled out of the connector shell backwards;
the method is characterized in that: the protection casing still includes:
the jacking piece is arranged on the cover body, the rear end of the jacking piece is fixedly arranged on the cover body, the front end of the jacking piece extends to a position corresponding to the radial direction of the front groove wall, and the front end of the jacking piece can elastically swing along the radial direction of the cover body; or the jacking part can reciprocate along the radial direction of the cover body, the jacking part is arranged corresponding to the front groove wall in the radial direction, and the protective cover further comprises an elastic part pushing the jacking part inwards along the radial direction of the cover body;
when the cover body is inserted into the connector and pulled out of the connector, the jacking piece can be pushed by the radial moving piece to form a channel for the radial moving piece to pass through between the jacking piece and the limiting groove, so that the radial moving piece enters the limiting groove and is separated from the limiting groove; after the radial moving part falls into the limiting groove, the jacking piece can elastically reset radially inwards and jacks and locks the radial moving part in the limiting groove.
2. The shield of claim 1, wherein: the roof pressure spare includes:
the elastic pressing sheets are arranged at intervals along the circumferential direction of the cover body, the rear end of each elastic pressing sheet is fixedly arranged on the cover body, and the front end of each elastic pressing sheet can elastically swing along the radial direction of the cover body.
3. The shield of claim 2, wherein: the roof pressure spare still includes:
the inner flange is arranged on the inner side of the elastic pressing piece, the inner flange is arranged on the outer peripheral surface of the cover body, and the elastic pressing piece is arranged on the cover body through the inner flange.
4. The shield of claim 3, wherein: the inner flange and the elastic pressing sheet are integrally cast and molded on the cover body;
at least two limiting grooves are arranged at intervals along the circumferential direction of the cover body, the limiting grooves penetrate through the inner flange, and the rear ends of the limiting grooves extend to the end part of the rear end of the cover body.
5. The shield of claim 4, wherein: the front groove wall is an inclined groove wall which is inclined and extends from back to front and from inside to outside along the radial direction of the cover body.
6. The shield of claim 3, wherein: the inner flange is assembled on the cover body in a threaded mode, the elastic pressing sheet is arranged on the inner flange, at least two limiting grooves are arranged in the circumferential direction of the cover body at intervals, or the limiting grooves are annular grooves extending in the circumferential direction.
7. The shield according to any one of claims 2-6, wherein: the inner side of the front end of the elastic pressing piece is provided with a direction-changing slope surface, and the direction-changing slope surface is used for pushing the elastic pressing piece outwards in the radial direction when the radial moving piece and the direction-changing slope surface are in pushing fit in the front-back direction.
8. The shield according to any one of claims 1-6, wherein: the protective cover further comprises a holding sleeve which is arranged on the cover body and sleeved outside the jacking piece, and the rear end of the holding sleeve is arranged in parallel with the rear end of the cover body.
9. The shield of claim 1, wherein: the protection casing includes:
the sleeve bodies are sleeved outside the cover body at intervals along the radial direction of the cover body;
the jacking part moves along the radial direction of the cover body and is assembled on the cover body, and the elastic part used for driving the jacking part to move inwards in the radial direction is arranged between the cover body and the jacking part.
10. A connector assembly comprising:
the connector comprises a connector shell, wherein at least two radial moving pieces are arranged on the connector shell at intervals along the circumferential direction;
the protection casing, its characterized in that: the protective cover according to any one of claims 1 to 9.
CN202010463938.2A 2020-05-27 2020-05-27 Protective cover and connector assembly using same Active CN111509467B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112367032A (en) * 2020-10-28 2021-02-12 陈栋 Protection component

Citations (5)

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Publication number Priority date Publication date Assignee Title
US5820399A (en) * 1996-08-06 1998-10-13 Yazaki Corporation Connector fitting construction
CN2729951Y (en) * 2004-09-08 2005-09-28 贵州航天电器股份有限公司 Ball type quick push-pull locking and unlocking electric connector
CN101133524A (en) * 2005-02-28 2008-02-27 安普泰科电子有限公司 Connector boot and connector assembly
CN201601317U (en) * 2009-12-24 2010-10-06 宁波市吉品信息互连工业有限公司 Bead type quick plugging connector
CN208571083U (en) * 2018-08-23 2019-03-01 深圳市威顺源精密电子有限公司 A kind of double protection master-slave socket structures of connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5820399A (en) * 1996-08-06 1998-10-13 Yazaki Corporation Connector fitting construction
CN2729951Y (en) * 2004-09-08 2005-09-28 贵州航天电器股份有限公司 Ball type quick push-pull locking and unlocking electric connector
CN101133524A (en) * 2005-02-28 2008-02-27 安普泰科电子有限公司 Connector boot and connector assembly
CN201601317U (en) * 2009-12-24 2010-10-06 宁波市吉品信息互连工业有限公司 Bead type quick plugging connector
CN208571083U (en) * 2018-08-23 2019-03-01 深圳市威顺源精密电子有限公司 A kind of double protection master-slave socket structures of connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112367032A (en) * 2020-10-28 2021-02-12 陈栋 Protection component
CN112367032B (en) * 2020-10-28 2021-08-06 陈栋 Protection component
US11227957B1 (en) 2020-10-28 2022-01-18 Dong Chen Protective component

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