CN203760788U - Rotatable contact-type waterproof plug socket - Google Patents
Rotatable contact-type waterproof plug socket Download PDFInfo
- Publication number
- CN203760788U CN203760788U CN201420099233.7U CN201420099233U CN203760788U CN 203760788 U CN203760788 U CN 203760788U CN 201420099233 U CN201420099233 U CN 201420099233U CN 203760788 U CN203760788 U CN 203760788U
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- Prior art keywords
- plug
- socket
- electrode
- screw
- fillet
- 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.)
- Expired - Lifetime
Links
- 238000003780 insertion Methods 0.000 claims abstract description 17
- 230000037431 insertion Effects 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The utility model provides a rotatable contact-type waterproof plug socket. The plug socket comprises a socket, a plug, a first external connection cable and a second external connection cable, wherein the first external connection cable and the second external connection cable are connected to the socket and the plug. The first external connection cable enters into from one end of a socket body and is connected to an electrode clamp reed, wherein the end is far away from a jack. The second external connection cable enters into from one end of a plug body and is connected with an electrode insertion sheet, wherein the end of the plug body is far away from the insertion sheet. An insulating shell is arranged on a periphery of the plug body and the insulating shell inwardly covers the electrode insertion sheet. When the socket and the plug are combined, the insulating shell on the plug wraps a combination surface of the socket and the plug so that a waterproof function of the rotatable contact-type waterproof plug socket is realized. When the plug is inserted into the socket and the plug socket is used, the insulating shell of the plug wraps the combination surface of the socket and the plug so that a waterproof effect is formed to the plug socket.
Description
Technical field
The utility model relates to plugs and sockets device field, is specifically related to a kind of rotary contact type waterproof plug socket of good water-proof effect.
Background technology
Plug and socket of power source device is requisite electronic components in industrial production and daily necessities, and it comprises plug and the socket coordinating with it.Traditional plug, socket comprise respectively electrode plug and electrode holder spring, and described electrode holder spring forms with the bending of a slice copper sheet conventionally.After plug insertion socket, the electrode plug of plug inserts in the electrode holder spring of socket, and nationality is realized being electrically connected to and locking of plug and socket by electrode plug and the contact action of electrode holder spring.Rotary contact type plugs and sockets in prior art, its waterproof effect is only to carry out water-proofing treatment by the parts by means of external, its sealing property is not high enough, and then affected the waterproof of this plugs and sockets, and by outside parts, this plugs and sockets is carried out to water-proofing treatment, can increase its use cost like this.Plugs and sockets device only depends on the elastic locking that relies on copper sheet self simultaneously, and the elasticity rate of copper sheet is more limited, and there is metal fatigue phenomenon, after repeatedly inserting and extracting, easily cause the contact-making surface between electrode plug and electrode holder spring to reduce, cause electrode holder spring inadequate to electrode plug clamping degree.Therefore, after plug insertion socket, when be given a shock or external force do the used time, can cause between socket and plug loosening and even separated, to use, make troubles.
For plug is coordinated with socket closely, improve fail safe, the patent No. is that the Chinese patent of CN201110053888.1 has disclosed a kind of rotary contact-type socket plug, at socket fore shell, be provided with the jack slideway being comprised of with the narrow slit slideway identical with jack jack, the electrode plug of plug is set to two-staged step inserted sheet; Electrode plug is arc corresponding to shape with jack slideway.After plug insertion socket clockwise direction rotation, when the thin part of electrode plug enters narrow slit slideway, in the electrode holder spring of the partial insertion socket that electrode plug is thick, realized being electrically connected to of plug and socket.
The part that now electrode plug is thicker by narrow slit slideway keep off, the locking of plug and socket, plug cannot vertically extract, if plug is extracted from socket, could vertically extract after must counterclockwise forwarding plug to position.
In rotation or pull the plug out of the socket and be, normally hold plug and directly rotate or extract, yet plug is to be generally relatively securely fixed on socket, all when firmly rotating or choosing, socket is difficult to fixing, is difficult for rotation.Had people's specialized designs with the socket of handle, if the United States Patent (USP) of patent No. US7052309 and the patent No. are 201110122837.X, this handle design mainly solves insertion and the withdrawal force problem of large electric current (electric current is more than or equal to 30A) socket for this reason.
Then, above-mentioned handle arrangement is complicated, breaks, and be not suitable for rotary contact-type socket plug than being easier to.
Utility model content
In view of this, the utility model aims to provide a kind of rotary contact-type socket plug of good water-proof effect.
A rotary contact type waterproof plug socket, the first external cable and the second external cable that include socket, plug and connect this socket and plug; Described socket comprises a jack body and is arranged on a plurality of electrode holder springs in described jack body, also offers the corresponding jack of a plurality of and described a plurality of electrode holder springs on described jack body; Described plug comprises a header body and a plurality of electrode plug corresponding with electrode holder spring; The cross section of described jack body and header body is all made as circle, and from jack body, the one end away from jack enters and is connected with electrode holder spring described the first external cable, and from header body, the one end away from electrode plug enters and is connected with electrode plug the second external cable; Described plug is also provided with insulation crust in the periphery of header body, wherein this insulation crust has inwardly covered electrode plug, and when socket and plug in conjunction with time, insulation crust on described plug wraps the faying face of socket and plug, and then has realized the water-proof function of this rotary contact type waterproof plug socket.
Further, the earth electrode in described plug adopts the steel ring of surrounding ground connection, and this steel ring is arranged on the position between header body and insulation crust; Earth electrode in described socket adopts and is arranged on the elastic piece structure on jack body side, and when plug is in the process of insertion socket rotation, the grounding elastic part of described socket contacts with the ground connection steel ring of plug all the time.
Further, the electrode holder spring of the electrode plug of described plug and socket includes respectively a zero line utmost point and two live wire utmost points, wherein the electrode plug of plug is arranged to arc, and the electrode holder spring of socket also adopts corresponding arcuate structure, make in the process of plug insertion socket rotation, the electrode plug of plug remains and contacts with the electrode holder spring of socket.
Further, this rotary contact type waterproof plug socket is arranged to the electrode plug of plug the arcuate structure that band hooks, and in the electrode holder spring of socket, add and stop and hang pin, and when working as plug insertion socket and rotating to an angle, in plug, with hook-shaped electrode plug, just in time hang over stopping on extension pin of socket electrode folder spring, and then realized the auto-lock function between plug and socket.
Further, this rotary contact type waterproof plug socket also comprises a screw thread waterproof construction, this screw thread waterproof construction includes again first fillet of screw, second fillet of screw and threaded block, described jack body is outward extended with the first flange in the one end away from jack, for carrying out spacing to this first fillet of screw; Described header body is outward extended with the second flange in the one end away from electrode plug, for carrying out spacing to this second fillet of screw; Wherein when described plug insertion socket, described threaded block is arranged between first fillet of screw and second fillet of screw, and make it to screw togather with threaded block by rotating first fillet of screw and second fillet of screw, and then reach secondary waterproof, and the effect that improves bonding strength between plug, socket.
Further, described the first external cable has the first grip part in the position injection mo(u)lding near jack body place, and the outer surface of described the first grip part is outward extended with a plurality of projections, and is surrounded on the first external cable; Described the second external cable has the second grip part in the position injection mo(u)lding near header body place, and the outer surface of described the second grip part is outwards also extended with a plurality of projections, and is surrounded on the second external cable.
Further, the outer direction of close described jack body without leave of described the first grip part increases gradually, and the outer direction of close described header body without leave of the second grip part increases gradually.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Rotary contact type waterproof plug socket provided by the utility model, when plug insertion socket is used, faying face between its plug and socket is just wrapped tightly by the insulation crust of plug, change like this insulation crust in the concrete process of using, can form a kind of good waterproof effect to this plugs and sockets; The screw thread waterproof construction that the utility model includes simultaneously can form the effect of secondary waterproof again, and the water resistance that the utility model is had is better; Plug is when inserting socket and rotating simultaneously, and the ground connection steel ring of plug communicates with the grounding elastic part of socket all the time, and its ground connection property is fabulous; And the self-locking structure between plug and socket and the screw thread waterproof construction of having set up, can improve the fastening performance between the utility model plug and socket, improved security performance.
Accompanying drawing explanation
Fig. 1 is the right view of socket in the utility model embodiment;
Fig. 2 is the left view of plug in the utility model embodiment;
Fig. 3 is the exploded view of rotary contact plugs and sockets in the utility model embodiment;
Fig. 4 is the constitutional diagram of rotary contact plugs and sockets in the utility model embodiment;
Fig. 5 is the front view of electrode plug in the utility model embodiment;
Fig. 6 is the upward view of electrode plug in the utility model embodiment;
Fig. 7 is the cutaway view of electrode holder spring in the utility model embodiment;
Fig. 8 is the vertical view of electrode holder spring in the utility model embodiment;
1, socket; 2, plug; 3, the first external cable; 4, the second external cable; 5, jack body; 6, electrode holder spring; 7, jack; 8, header body; 9, electrode plug; 10, steel ring; 11, shell fragment; 12, insulation crust; 13, stop and hang pin; 14, the first grip part; 15, the second grip part; 16, projection; 17, first fillet of screw; 18, second fillet of screw; 19, threaded block; 20, the first flange; 21, the second flange.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 1-4, rotary contact type waterproof plug socket described in the utility model, the first external cable 3 and the second external cable 4 that include socket 1, plug 2 and connect this socket 1 and plug 2; Described socket 1 comprises a jack body 5 and is arranged on a plurality of electrode holder springs 6 in described jack body 5, also offers the corresponding jack 7 of a plurality of and described a plurality of electrode holder spring 6 on described jack body 5; Described plug 2 comprises a header body 8 and a plurality of electrode plug corresponding with electrode holder spring 69; Described jack body 5 is all made as circle with the cross section of header body 8, and from jack body 5, the one end away from jack 7 enters and is connected with electrode holder spring 6 described the first external cable 3, from header body 8, the one end away from electrode plug 9 enters and is connected with electrode plug 9 the second external cable 4; Described plug 2 is also provided with insulation crust 12 in the periphery of header body 8, wherein this insulation crust 12 has inwardly covered electrode plug 9, and when socket 1 and plug 2 in conjunction with time, insulation crust 12 on described plug 2 wraps the faying face of socket 1 and plug 2, and then has realized the water-proof function of this rotary contact type waterproof plug socket.The utility model is in the process of using, the insulation crust 12 that faying face between its plug 2 and socket 1 is provided with by plug 2 is all the time wrapped tightly, and it not only can play the effect of waterproof well, and simple in structure, easy to use, production cost is lower.
As further improvement of the utility model, the earth electrode in described plug 2 adopts the steel ring 10 of surrounding ground connection, and this steel ring 10 is arranged on the position between header body 8 and insulation crust 12; And earth electrode in socket 1 adopts and is arranged on shell fragment 11 structures on jack body 8 sides, and inserting in the rotary course of socket 1 when plug 2, the grounding elastic part 11 of described socket 1 contacts with the ground connection steel ring 10 of plug 2 all the time, and its ground connection performance is fabulous.The utility model is in the concrete process of using, the ground connection steel ring 10 of its plug 2 can adopt etch-proof stainless steel material to make, not only can fully guarantee the ground connection of this plug 2 like this, and the anticorrosion stainless steel material adopting, under being more suitable for corrosivity is stronger environment at sea, uses copper material, and not yielding; The grounding elastic part 11 of socket 1 can adopt the material of brass nickel plating to make.
The extension making progress with respect to header body 8 on electrode plug 9 in the utility model plug 2, and the ground connection steel ring 10 of this plug 2 is arranged on the edge of header body 8, and covered electrode plug 9 completely, and the insulation crust 12 of setting up on plug 2 has wrapped ground connection steel ring 10 completely, like this when plug 2 is connected with socket 1, insulation crust 12 has just wrapped the faying face of 1 of plug 2 and socket tightly, therefore the utility model can be good at playing the effect of waterproof.
As further improvement of the utility model, the electrode plug 9 of described plug 2 and the electrode holder spring 6 of socket 1 include respectively a zero line utmost point and two live wire utmost points, wherein the electrode plug 9 of plug 2 is arranged to arc, and the electrode holder spring 6 of socket 1 also adopts corresponding arcuate structure, plug 2 is inserted in the process of socket 1 rotation, the electrode plug 9 of plug 2 remains and contacts with the electrode holder spring 6 of socket 1, has so just guaranteed the connection between plug 2 and socket 1.
Wherein this rotary contact type waterproof plug socket is arranged to the electrode plug 9 of plug 2 arcuate structure that band hooks, and in the electrode holder spring 6 of socket 1, add and stop and hang pin 13, and when plug 2 inserts socket 1 and rotates to an angle, in plug 2, with hook-shaped electrode plug 9, just in time hang over stopping on extension pin 13 on socket 1 electrode holder spring 6, and then realized the auto-lock function between plug 2 and socket 1, so just can strengthen the tightness being connected between plug 2 and socket 1, make it when remote power-feeding, can prevent plug 2 unexpected disengaging the in use.
As another kind of improvement of the present utility model, this rotary contact type waterproof plug socket also comprises a screw thread waterproof construction, this screw thread waterproof construction includes again first fillet of screw 17, second fillet of screw 18 and threaded block 19, described jack body 5 is outward extended with the first flange 20 in the one end away from jack 7, for carrying out spacing to this first fillet of screw 17; Described header body 8 is outward extended with the second flange 21 in the one end away from electrode plug 9, for carrying out spacing to this second fillet of screw 18; Wherein when described plug 2 inserts socket 1, described threaded block 19 is arranged between first fillet of screw 17 and second fillet of screw 18, and make it to screw togather with threaded block 19 by rotating first fillet of screw 17 and second fillet of screw 18, and then reach the effect of fastening plug 2, socket 1.The screw thread waterproof construction that the utility model is set up, can form to this rotary contact type waterproof plug socket the effect of secondary waterproof, can big upgrade waterproof effect of the present utility model; Simultaneously further fastening plug 2 and socket 1.
Wherein the first flange 20 and the second flange 21 are formed in jack body 5 and header body 8 by the mode of quadric injection mould respectively, the first flange 20 and the second flange 21 all adopt thermoplastic elastic material to make, first fillet of screw 17 and second fillet of screw 18 for waterproof adopt the engineering material of Merlon to make, just hard, this rotary contact type waterproof plug socket is in the long-time process of using like this, its first fillet of screw 17 and second fillet of screw 18 easily damage, when running into said circumstances, only just need to firmly screw and first fillet of screw 17 of breakage or second fillet of screw 18 can be separated from the first flange 20 or the second flange 21, facilitated the waterproof fillet of screw (17, 18) replacing, and the internal diameter of first fillet of screw 17 or second fillet of screw 18, be less than corresponding the first flange 20 or the second flange 21 after secondary injection molding with the junction external diameter of its combination.Like this can be effectively spacingly live coming off of first fillet of screw 17 or second fillet of screw 18.
Simultaneously as another kind of improvement of the present utility model, described the first external cable 3 has the first grip part 14 in the position injection mo(u)lding near jack body 5 places, and the outer surface of described the first grip part 14 is outward extended with a plurality of protruding 16, and is surrounded on the first external cable 3; Described the second external cable 4 has the second grip part 15 in the position injection mo(u)lding near header body 8 places, and the outer surface of described the second grip part 15 is outwards also extended with a plurality of protrudingly 16, and is surrounded on the second external cable 4.The outer direction of close described jack body 5 without leave of wherein said the first grip part 14 increases gradually, and the outer direction of close described header body 8 without leave of the second grip part 15 increases gradually.The first grip part 14 and the second grip part 15 that the utility model has by the position injection mo(u)lding near socket 1, plug 2, it is simple in structure, and is combined with cable closely, durable in use, inserting, extracting and during rotary connector 2 socket 1, can handled easily, laborsaving.
Electrode plug 9 in the utility model is as described in Fig. 5,6, overall structure is arranged to arc shape, it is by for being fixed on the fixed part on plug 2 and being arranged to that the connecting portion of hook-shaped structure forms, and wherein the fixed part of this electrode plug 9 and connecting portion be not again in same level; Electrode holder spring 6 is as described in Fig. 7,8, it is main also by for being fixed on fixed part and the connecting portion for contacting and be connected with electrode plug 9 on jack body 5, and one end that pin 13 is arranged on connecting portion in this electrode plug 9 is hung in stopping of setting up on electrode holder spring 6, so that the hook-shaped structure of electrode plug 9 matches, play the auto-lock function of 1 of plug 2 and socket.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. a rotary contact type waterproof plug socket, the first external cable and the second external cable that include socket, plug and connect this socket and plug; Described socket comprises a jack body and is arranged on a plurality of electrode holder springs in described jack body, also offers the corresponding jack of a plurality of and described a plurality of electrode holder springs on described jack body; Described plug comprises a header body and a plurality of electrode plug corresponding with electrode holder spring; It is characterized in that: the cross section of described jack body and header body is all made as circle, and from jack body, the one end away from jack enters and is connected with electrode holder spring described the first external cable, and from header body, the one end away from electrode plug enters and is connected with electrode plug the second external cable; Described plug is also provided with insulation crust in the periphery of header body, wherein this insulation crust has inwardly covered electrode plug, and when socket and plug in conjunction with time, insulation crust on described plug wraps the faying face of socket and plug, and then has realized the water-proof function of this rotary contact type waterproof plug socket.
2. rotary contact type waterproof plug socket according to claim 1, is characterized in that: the earth electrode in described plug adopts the steel ring of surrounding ground connection, and this steel ring is arranged on the position between header body and insulation crust; Earth electrode in described socket adopts and is arranged on the elastic piece structure on jack body side, and when plug is in the process of insertion socket rotation, the grounding elastic part of described socket contacts with the ground connection steel ring of plug all the time.
3. rotary contact type waterproof plug socket according to claim 1, it is characterized in that: the electrode holder spring of the electrode plug of described plug and socket includes respectively a zero line utmost point and two live wire utmost points, wherein the electrode plug of plug is arranged to arc, and the electrode holder spring of socket also adopts corresponding arcuate structure, make in the process of plug insertion socket rotation, the electrode plug of plug remains and contacts with the electrode holder spring of socket.
4. according to the rotary contact type waterproof plug socket described in claim 1 or 3, it is characterized in that: this rotary contact type waterproof plug socket is arranged to the electrode plug of plug the arcuate structure that band hooks, and in the electrode holder spring of socket, add and stop and hang pin, and when working as plug insertion socket and rotating to an angle, in plug, with hook-shaped electrode plug, just in time hang over stopping on extension pin of socket electrode folder spring, and then realized the auto-lock function between plug and socket.
5. rotary contact type waterproof plug socket according to claim 1, it is characterized in that: this rotary contact type waterproof plug socket also comprises a screw thread waterproof construction, this screw thread waterproof construction includes again first fillet of screw, second fillet of screw and threaded block, described jack body is outward extended with the first flange in the one end away from jack, for carrying out spacing to this first fillet of screw; Described header body is outward extended with the second flange in the one end away from electrode plug, for carrying out spacing to this second fillet of screw; Wherein when described plug insertion socket, described threaded block is arranged between first fillet of screw and second fillet of screw, and make it to screw togather with threaded block by rotating first fillet of screw and second fillet of screw, and then reach secondary waterproof, and the effect that improves bonding strength between plug, socket.
6. rotary contact type waterproof plug socket according to claim 1, it is characterized in that: described the first external cable has the first grip part in the position injection mo(u)lding near jack body place, and the outer surface of described the first grip part is outward extended with a plurality of projections, and be surrounded on the first external cable; Described the second external cable has the second grip part in the position injection mo(u)lding near header body place, and the outer surface of described the second grip part is outwards also extended with a plurality of projections, and is surrounded on the second external cable.
7. rotary contact type waterproof plug socket according to claim 6, it is characterized in that: the outer direction of close described jack body without leave of described the first grip part increases gradually, and the outer direction of close described header body without leave of the second grip part increases gradually.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420099233.7U CN203760788U (en) | 2014-03-06 | 2014-03-06 | Rotatable contact-type waterproof plug socket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420099233.7U CN203760788U (en) | 2014-03-06 | 2014-03-06 | Rotatable contact-type waterproof plug socket |
Publications (1)
Publication Number | Publication Date |
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CN203760788U true CN203760788U (en) | 2014-08-06 |
Family
ID=51256025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201420099233.7U Expired - Lifetime CN203760788U (en) | 2014-03-06 | 2014-03-06 | Rotatable contact-type waterproof plug socket |
Country Status (1)
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CN (1) | CN203760788U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103855560A (en) * | 2014-03-06 | 2014-06-11 | 宁波唯尔电器有限公司 | Rotary contact-type waterproof plug and socket set |
-
2014
- 2014-03-06 CN CN201420099233.7U patent/CN203760788U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103855560A (en) * | 2014-03-06 | 2014-06-11 | 宁波唯尔电器有限公司 | Rotary contact-type waterproof plug and socket set |
CN103855560B (en) * | 2014-03-06 | 2016-03-09 | 宁波唯尔电器有限公司 | A kind of rotary contact type waterproof plug socket |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20140806 |
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CX01 | Expiry of patent term |