CN109638552B

CN109638552B - Interface damp-proof device

Info

Publication number: CN109638552B
Application number: CN201811600256.0A
Authority: CN
Inventors: 牛力欣; 韩立通; 陈伟科
Original assignee: State Grid Hebei Electric Power Co Ltd; Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd; Lincheng Power Supply Co of State Grid Hebei Electric Power Co Ltd; State Grid Corp of China SGCC
Current assignee: State Grid Hebei Electric Power Co Ltd; Xingtai Power Supply Co of State Grid Hebei Electric Power Co Ltd; Lincheng Power Supply Co of State Grid Hebei Electric Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2020-05-26
Anticipated expiration: 2038-12-26
Also published as: CN109638552A

Abstract

The invention provides a moisture-proof device for an interface, which relates to the technical field of electric auxiliary equipment, and includes a sleeve, a tightening sleeve, a jacket, and a tightening nut, and a clamping table is also arranged inside the sleeve. The interface moisture-proof device provided by the invention realizes the effective protection of the pin and the plug through the sleeve, and uses the conical closing of the tightening sleeve and the sleeve to realize the effect of tightening the conical closing toward the center and abutting with the outer periphery of the plug. The sealing effect of the plug and the external environment is ensured, and the jacket arranged on the outer periphery of the pin is in close contact with the sleeve, and the sleeve and the jacket are tightly connected by tightening the nut to ensure the pin and the external environment. The sealing effect can avoid the erosion of the connection point of the pin and the plug by the external environment. The setting of the card table ensures the stability of the axial position of the pin and the plug in the device, effectively guarantees the moisture-proof effect of the interface, and improves the pin and plug. and the service life of the plug.

Description

Interface damp-proof device

Technical Field

The invention belongs to the technical field of electric auxiliary equipment, and particularly relates to an interface moisture-proof device.

Background

At present, in the construction process of power equipment, a secondary cable is often connected with primary equipment, and the connection process mostly adopts a matching form that a plug is connected with a contact pin. However, the distance between the aviation contact pins is relatively short, and the ground fault caused by dampness easily occurs in humid and rainy seasons, so that the false alarm of a subsequent alarm device is easily caused, the safe operation of power equipment is influenced, the working strength of maintenance personnel is increased, and the continuous stability of power supply is not favorably ensured.

Disclosure of Invention

The invention aims to provide an interface moisture-proof device to solve the technical problems that an aviation connector in the prior art is prone to being affected with moisture to cause false alarm and affect electric power safe operation.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an interface dampproof device, locate plug periphery suit piece including the cover, set up in the toper binding off of the first end of suit piece, the periphery that the toper binding off was located to the cover and be used for tightening up the cover that tightens up the toper binding off, the cover is located on the contact pin and the periphery is used for pressing from both sides the cover with the inner wall butt of suit piece, respectively with the second end of suit piece with press from both sides the lock nut that presss from both sides cover threaded connection, still be equipped with the ka tai that is used for with the terminal surface butt of plug on the inner wall.

As further optimization, the toper binding off includes that toper body and a plurality of set up in the opening of the periphery of toper body around the main shaft of toper body, and the opening of opening is towards the first end of toper body, and the first end of toper body is the osculum end, and the periphery of toper body is equipped with the external screw thread, is equipped with on the inner wall of the cover of tightening and is used for the internal thread with external screw thread matched with.

As a further optimization, a plurality of gaps are uniformly distributed on the periphery of the conical body.

As further optimization, the first end of the tightening sleeve is further provided with an end plate, an inner ring of the end plate is used for being in contact fit with the outer periphery of the plug, and a first sealing ring is further arranged between the inner ring of the end plate and the outer periphery of the cable of the plug.

As a further optimization, the tightening sleeve further comprises a first adsorbent layer which is arranged on the inner side of the tightening sleeve, the inner ring of the first adsorbent layer is used for being in contact fit with the outer periphery of the plug, and a gap is formed between the first adsorbent layer and the end face of the first end of the sleeving part.

As further optimization, a second adsorbent layer is arranged on the inner side of the sleeving piece, the second adsorbent layer is located in the middle of the sleeving piece and is in contact fit with the peripheries of the plug and the contact pin respectively, and the clamping table is arranged on the inner side of the second adsorbent layer.

As a further optimization, the interface moisture-proof device further comprises a display hole arranged on the periphery of the sleeving part, a display part communicated with the second adsorbent layer is arranged in the display hole, and the display part is a transparent material component.

As further optimization, press from both sides the cover including be used for with the periphery contact complex toper portion of contact pin and be used for with the straight portion of the periphery contact complex of the cable of contact pin, the inboard of the suit piece is equipped with and is used for with the toper portion contact complex taper hole, still is equipped with the second sealing washer between the periphery of the straight portion of contact and the cable of contact pin.

As a further optimization, a step hole used for accommodating the clamping nut is formed in the second end of the sleeving part, and a third sealing ring is further arranged between the inner end face of the clamping nut and the inner end face of the step hole.

As a further optimization, the second adsorbent layer is a silica gel adsorbent.

The interface damp-proof device provided by the invention has the beneficial effects that: according to the interface damp-proof device provided by the invention, the contact pin and the plug are effectively protected through the sleeving piece, the effect that the tapered closing-in is tightened towards the center and abutted against the periphery of the plug is realized by utilizing the tapered closing-in of the tightening sleeve and the sleeving piece, the sealing effect of the plug and the external environment is ensured, meanwhile, the clamping sleeve arranged at the periphery of the contact pin is tightly contacted with the sleeving piece, the sleeving piece and the clamping sleeve are tightly connected through the clamping nut, the sealing effect of the contact pin and the external environment is ensured, the corrosion of the external environment to the connection point of the contact pin and the plug is avoided, the axial positions of the contact pin and the plug in the device are ensured by the arrangement of the clamping table, the damp-proof effect of the interface is effectively ensured, and the service lives of the.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described 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 to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic cross-sectional structural view of a first interface moisture protection device according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the package of FIG. 1;

FIG. 3 is a schematic sectional view of the jacket of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the tightening sleeve of FIG. 1;

fig. 5 is a schematic cross-sectional view of an interface moisture protection device according to a second embodiment of the present invention;

wherein, in the figures, the respective reference numerals:

100-a kit; 110-tapered closing in; 111-a conical body; 112-a gap; 120-step hole; 130-a card table; 200-tightening the sleeve; 210-an end plate; 230-a first sorbent layer; 240-a second sorbent layer; 250-a display section; 300-jacket; 310-a conical portion; 320-straight portion; 400-tightening the nut; 510-a first sealing ring; 520-a second sealing ring; 530-third seal ring; 610-pin insertion; 620-plug.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 5, the moisture-proof device for the interface according to the present invention will now be described. The interface moisture-proof device comprises a sleeve 100 sleeved on the periphery of a plug 620, a tapered closing-in 110 arranged at the first end of the sleeve 100, a tightening sleeve 200 sleeved on the periphery of the tapered closing-in 110 and used for tightening the tapered closing-in 110, a clamping sleeve 300 sleeved on a contact pin 610 and used for being abutted against the inner wall of the sleeve 100, and a clamping nut 400 in threaded connection with the second end of the sleeve 100 and the clamping sleeve 300 respectively, wherein the inner wall of the sleeve 100 is further provided with a clamping table 130 used for being abutted against the end face of the plug 620. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. The terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. The contact pin in the embodiment refers to a connector with a pin at the end of the cable, the plug is a connector which is mutually inserted with the contact pin and used for connecting the cable, and the interface moisture-proof device is used for sleeving the position where the plug and the contact pin are connected, so that the problem of abnormal connection caused by the fact that moist gas or water drops enter the plug and the contact pin is avoided, and the alarm probability caused by abnormal connection of the connector is reduced to the maximum extent.

Compared with the prior art, the interface moisture-proof device provided by the invention, the sleeve member 100 can effectively protect the contact pin 610 and the plug 620, the tapered closing-in 110 of the sleeve member 100 and the tapered closing-in 200 can be used to achieve the effect that the tapered closing-in 110 is tightened towards the center and is abutted against the periphery of the plug 620, the sealing effect of the plug 620 and the external environment can be achieved, while the collet 300 provided at the outer circumference of the pin 610 is in close contact with the kit 100, and through the lock nut 400 with suit 100 and press from both sides between the cover 300 and carry out zonulae occludens, guarantee the sealed effect of contact pin 610 and external environment, avoid external environment to the erosion of contact pin 610 and plug 620 tie point, the setting up of ka tai 130 has guaranteed the stability of the axial position of contact pin 610 and plug 620 in the device, the effectual dampproofing effect who guarantees the interface has improved contact pin 610 and plug 620's life.

Referring to fig. 1 to 5, as a specific embodiment of the interface moisture-proof device provided by the present invention, the tapered closing-in 110 includes a tapered body 111 and a plurality of notches 112 disposed around a main axis of the tapered body 111 and disposed on an outer periphery of the tapered body 111, an opening of the notch 112 faces a first end of the tapered body 111, the first end of the tapered body 111 is a small-mouth end, an outer thread is disposed on an outer periphery of the tapered body 111, and an inner thread for mating with the outer thread is disposed on an inner wall of the tightening sleeve 200. In the description of the present invention, "a number" means two or more unless specifically limited otherwise. The tapered closing-in adopts the form that a plurality of openings are arranged along the axial direction of the tapered body are arranged in the periphery of the tapered body, when the tightening sleeve is screwed to one side of the sleeved piece, the outer end of the opening can be gradually tightened to the periphery of the cable of the plug along with the approach of the first end of the tightening sleeve to one side of the sleeved piece, the tightening effect on the periphery of the cable is realized, the smooth proceeding of the tightening effect is ensured by the threaded connection between the tightening sleeve and the sleeved piece, and the tightening effectiveness is also ensured.

As a specific embodiment of the interface moisture-proof device provided by the present invention, a plurality of gaps 112 are uniformly arranged on the outer circumference of the conical body 111. The form that the opening adopted evenly to arrange in the periphery of toper body 111, it is even to tighten up the tightening up of each position of cable periphery of plug in-process to be convenient for, avoids the local problem of tightening up that local relaxation caused not tight with external seal.

Referring to fig. 1 and 4 together, as an embodiment of the interface moisture-proof device provided by the present invention, the first end of the tightening sleeve 200 is further provided with an end plate 210 having an inner ring for contacting and matching with the outer circumference of the plug 620, and a first sealing ring 510 is further provided between the inner ring of the end plate 210 and the outer circumference of the cable of the plug 620. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The periphery at the cable of plug is being overlapped to the end plate, and the sealed effect between the cable of end plate and plug has been guaranteed in the setting of first sealing washer, avoids moist gas to get into the junction of plug and contact pin from the first end of tightening up the cover, causes the two problem that wets the corrosion.

Referring to fig. 1 and fig. 4, as an embodiment of the interface moisture-proof device provided by the present invention, the tightening sleeve 200 further includes a first adsorbent layer 230 disposed inside the tightening sleeve 200 and having an inner ring for contacting and matching with the outer periphery of the plug 620, and a gap is disposed between the first adsorbent layer 230 and the end surface of the first end of the kit 100. First adsorbent layer adopts the form that sets up the adsorbent in fashioned casing, sets up the air vent that communicates in the external world on the inner wall of casing, and inside steam or water droplet can get into the casing through the air vent to absorbed by inside adsorbent, cause the problem that the joint wets in avoiding getting into plug and the socket. The clearance between the terminal surface of first adsorbent layer and suit spare can provide sufficient formation for tightening up of packing element and suit spare, avoids tightening up the terminal surface of in-process first adsorbent layer and the terminal surface emergence extrusion of suit spare, influences the problem of effectively tightening up. The first adsorbent layer is arranged in absorbing the moisture in the very little moist gas of cable one side of plug, avoids moisture to continue to the problem of contact pin and plug position removal, guarantees good adsorbed moisture's ability.

Referring to fig. 1, fig. 2 and fig. 5, as an embodiment of the interface moisture-proof device provided by the present invention, a second adsorbent layer 240 is disposed inside the package 100, the second adsorbent layer 240 is located in the middle of the package 100 and is in contact fit with the outer peripheries of the plug 620 and the pin 610, respectively, and the card table 130 is disposed inside the second adsorbent layer 240. The setting of second adsorbent layer is in the periphery of plug 620 and contact pin 610, a moisture that is used for the whole inside joint of effectual absorption, avoid moisture to shift to inside plug and the contact pin, the second adsorbent layer adopts the form that sets up the adsorbent in fashioned casing, set up in the air vent of external intercommunication on the inner wall of casing, steam or water droplet can get into inside the casing through the air vent, and absorbed by inside adsorbent, avoid getting into the problem that causes the equipment that connects the production of weing in plug and the socket and report to the police, maintenance frequency of maintenance personal has been reduced, the normal operating of equipment has been guaranteed.

Referring to fig. 5, as an embodiment of the interface moisture-proof device provided by the present invention, the interface moisture-proof device further includes a display hole disposed at the periphery of the package 100, a display portion 250 disposed in the display hole and communicated with the second adsorbent layer 240, and the display portion 250 is a transparent material member. The setting of display part is convenient for maintenance personal more convenient masters the in service behavior of adsorbent in the second adsorbent layer, when long-time back adsorbent absorption moisture becomes many, can audio-visually observe to timely change the adsorbent or carry out the whole change to joint dampproof device, in order to guarantee the normal connection of plug and contact pin. The second adsorbent layer 240 is a silica gel adsorbent, because the silica gel adsorbent can show the color when getting damp, generally shows for blue, and the maintenance personal can in time master the dampproofing effect that connects dampproof device through observing the colour depth of inside silica gel adsorbent, carries out timely change when necessary.

Referring to fig. 1 and 3 together, as an embodiment of the interface moisture-proof device provided by the present invention, the jacket 300 includes a tapered portion 310 for contacting and matching with the outer circumference of the pin 610 and a flat portion 320 for contacting and matching with the outer circumference of the cable of the pin 610, the inner side of the package 100 is provided with a tapered hole for contacting and matching with the tapered portion 310, and a second sealing ring 520 is further provided between the flat portion 320 and the outer circumference of the cable of the pin 610. The toper portion that presss from both sides the cover tip is used for and the suit piece on the toper hole that sets up carry out effectual chucking, realize from step hole one side insert the contact pin and realize gradually with the butt effect of pressing from both sides cover periphery and suit piece inner wall, simultaneously under the effect of screwing up of lock nut, realize the contact pin to the propulsive effect of plug one side, guarantee effective connection between plug and the contact pin.

Referring to fig. 1 to 2, as an embodiment of the interface moisture-proof device provided by the present invention, a stepped hole 120 for receiving a clamping nut 400 is formed inside the second end of the package 100, and a third sealing ring 530 is further disposed between an inner end surface of the clamping nut 400 and an inner end surface of the stepped hole 120. The inner wall in step hole is equipped with the internal thread that is used for with lock nut threaded connection, and the periphery that presss from both sides the cover is equipped with the external screw thread that is used for with lock nut threaded connection, and the effective sealing between lock nut and the suit piece can be realized to the third sealing washer between step hole and the lock nut in addition, guarantees good sealed effect.

During the use, will overlap the dress piece and tighten up the cover and penetrate from the outer end of the cable of plug in order, will press from both sides the cover and penetrate from the cable outer end of contact pin, then will contact pin and press from both sides the cover whole to penetrate the dress piece, will tighten up cover and suit piece and screw up, realize fixing to plug one side, then will close nut and press from both sides cover and suit piece and screw up, realize the fixed to the contact pin, finally realize effectively being connected to plug and contact pin, realize good moisture barrier properties.

According to the interface damp-proof device provided by the invention, the contact pin and the plug are effectively protected through the sleeving piece, the effect that the tapered closing-in is tightened towards the center and abutted against the periphery of the plug is realized by utilizing the tapered closing-in of the tightening sleeve and the sleeving piece, the sealing effect of the plug and the external environment is ensured, meanwhile, the clamping sleeve arranged at the periphery of the contact pin is tightly contacted with the sleeving piece, the sleeving piece and the clamping sleeve are tightly connected through the clamping nut, the sealing effect of the contact pin and the external environment is ensured, the corrosion of the external environment to the connection point of the contact pin and the plug is avoided, the axial positions of the contact pin and the plug in the device are ensured by the arrangement of the clamping table, the damp-proof effect of the interface is effectively ensured, and the service lives of the.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Interface dampproof device, its characterized in that: the clamping device comprises a sleeving part (100) sleeved on the periphery of a plug (620), a tapered closing-in (110) arranged at a first end of the sleeving part (100), a tightening sleeve (200) sleeved on the periphery of the tapered closing-in (110) and used for tightening the tapered closing-in (110), a clamping sleeve (300) sleeved on a contact pin (610) and used for abutting against the inner wall of the sleeving part (100), and a clamping nut (400) in threaded connection with a second end of the sleeving part (100) and the clamping sleeve (300) respectively, wherein a clamping table (130) used for abutting against the end face of the plug (620) is further arranged on the inner wall of the sleeving part (100); the inboard of suit (100) is equipped with second adsorbent layer (240), second adsorbent layer (240) are located the middle part of suit (100) and respectively with plug (620) with the periphery contact cooperation of contact pin (610), ka tai (130) set up in the inboard of second adsorbent layer (240).

2. The interface moisture barrier of claim 1, wherein: the taper closing-in (110) comprises a taper body (111) and a plurality of main shafts surrounding the taper body (111), wherein the main shafts are arranged in a gap (112) in the periphery of the taper body (111), an opening of the gap (112) faces towards the first end of the taper body (111), the first end of the taper body (111) is a small opening end, external threads are arranged in the periphery of the taper body (111), and internal threads matched with the external threads are arranged on the inner wall of the tightening sleeve (200).

3. The interface moisture barrier of claim 2, wherein: the plurality of gaps (112) are uniformly distributed on the periphery of the conical body (111).

4. The interface moisture barrier of claim 3, wherein: the first end of tightening sleeve (200) still be equipped with the inner circle be used for with the periphery contact complex end plate (210) of plug (620), the inner circle of end plate (210) with still be equipped with first sealing washer (510) between the periphery of the cable of plug (620).

5. The interface moisture barrier of claim 4, wherein: the tightening sleeve (200) further comprises a first adsorbent layer (230) which is arranged on the inner side of the tightening sleeve (200) and the inner ring of which is used for being in contact fit with the periphery of the plug (620), and a gap is formed between the first adsorbent layer (230) and the end face of the first end of the sleeving part (100).

6. The interface moisture barrier of claim 5, wherein: the interface dampproof device is still including set up in the display hole of the periphery of suit (100), be equipped with in the display hole with display part (250) of second adsorbent layer (240) intercommunication, display part (250) are the transparent material component.

7. The interface moisture barrier of claim 1, wherein: the jacket (300) comprises a conical part (310) used for being in contact fit with the outer periphery of the contact pin (610) and a straight part (320) used for being in contact fit with the outer periphery of a cable of the contact pin (610), a taper hole used for being in contact fit with the conical part (310) is formed in the inner side of the sleeve piece (100), and a second sealing ring (520) is further arranged between the straight part (320) and the outer periphery of the cable of the contact pin (610).

8. The interface moisture barrier of claim 7, further comprising: a step hole (120) used for containing the clamping nut (400) is formed in the second end of the sleeving part (100), and a third sealing ring (530) is further arranged between the inner end face of the clamping nut (400) and the inner end face of the step hole (120).

9. The interface moisture barrier of claim 1, wherein: the second adsorbent layer (240) is a silica gel adsorbent.