CN110676650A - Self-locking safety heavy-current switch electric appliance - Google Patents
Self-locking safety heavy-current switch electric appliance Download PDFInfo
- Publication number
- CN110676650A CN110676650A CN201911052975.8A CN201911052975A CN110676650A CN 110676650 A CN110676650 A CN 110676650A CN 201911052975 A CN201911052975 A CN 201911052975A CN 110676650 A CN110676650 A CN 110676650A
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- CN
- China
- Prior art keywords
- locking
- self
- pressure expansion
- plug
- wall
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
-
- 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
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
Abstract
The invention discloses a self-locking safety high-current switching electric appliance, which comprises a plug and a self-locking socket; the plug comprises a self-locking sleeve, a drawing type pressure expansion column and a return spring; the self-locking socket comprises a self-locking plug post; the self-locking sleeve is provided with four petal tables which enclose to form a self-locking hole; the inner wall of each petal platform is sequentially provided with a pressure expansion groove, a self-locking groove and a guide groove; the drawing type pressure expansion column is sequentially provided with a drawing part, a sliding column part and a pressure expansion part; the reset spring is sleeved on the sliding column part; the pressure expansion part is provided with a tension-pressure inclined wall matched with the pressure expansion inclined wall; the self-locking inserting column comprises an installation end and a locking end, the installation end is fixedly arranged in the insulating base body, an annular locking boss matched with the self-locking groove is arranged on the outer wall of the locking end, and when the plug is inserted and connected onto the self-locking socket, the annular locking boss is located in the self-locking groove. The invention can realize self-locking and locking after the plug and the self-locking socket are plugged, and can unlock the plug and the self-locking socket by pulling the pull-type pressure expansion column.
Description
Technical Field
The invention belongs to the technical field of switching appliances, and particularly relates to a self-locking safety type high-current switching appliance.
Background
The existing heavy-current switching electric appliance needs stable and reliable electric connection, and the connection strength between the electric plug board and the electric card is generally increased by increasing the holding force between the electric plug board and the electric card, so that the electric switching electric appliance has the following defects: because the power connection plugboard and the power connection card are mostly made of copper-based noble metal in order to ensure the conductivity, the material performance is limited in elasticity and strength, if the holding force is to be increased, the thickness of the power connection plugboard and the power connection card is increased by thickening, and the problem of obvious increase of cost is caused; meanwhile, if the holding force between the two is large, the defect that the plug is difficult to pull out after being plugged is also brought.
Disclosure of Invention
The invention aims to provide a self-locking type safety high-current switching electric appliance which is self-locked after being plugged so as to obtain stable and reliable power connection performance.
The technical scheme for realizing the purpose of the invention is as follows: a self-locking safety high-current switching electric appliance comprises a plug and a self-locking socket; the plug comprises an insulating shell, an electric connection plugboard, a self-locking sleeve, a drawing type pressure expansion column and a reset spring; the self-locking socket comprises an insulating base body, a power connection card and a self-locking plug column; the self-locking sleeve is provided with a fixed end and a self-locking end, the fixed end is in an annular tubular shape, and the fixed end is fixedly arranged in the insulating shell; the self-locking end is provided with four petal tables protruding from the fixed end along the axial direction of the self-locking sleeve, the four petal tables enclose to form a self-locking hole, and gaps are reserved among the petal tables; the self-locking end of the self-locking sleeve extends out of the insulating shell; the inner wall of each valve platform is sequentially provided with a pressure expansion groove, a self-locking groove and a guide groove along the direction from the fixed end to the self-locking end; the pressure expansion groove comprises a pressure expansion inclined wall and a retaining wall, the self-locking groove comprises a limiting inclined wall and an anti-release wall, and the guide groove comprises a guide inclined wall; the drawing type pressure expansion column is sequentially provided with a drawing part, a sliding column part and a pressure expansion part, the insulating shell is provided with a sliding hole, the sliding column part is positioned in the sliding hole of the insulating shell, the drawing part is positioned outside the insulating shell, and the drawing part is positioned on one side of the insulating shell, which is far away from the splicing end of the power connection plugboard; the reset spring is sleeved on the sliding column part, and the pressure expansion part is pressed on the blocking wall by the reset spring in a free state; the pressure expansion part is provided with a tension-pressure inclined wall matched with the pressure expansion inclined wall; the insulating base body is provided with an electric connection jack and a self-locking jack, and each electric connection card is positioned in a corresponding electric connection jack; the self-locking plug is positioned in the self-locking jack and comprises a mounting end and a locking end, the mounting end is fixedly arranged in the insulating base, an annular locking boss matched with the self-locking groove is arranged on the outer wall of the locking end, and when the plug is plugged in the self-locking socket, the annular locking boss is positioned in the self-locking groove.
In the above scheme, the power connection plugboard comprises a base end and a plug end, the base end of the power connection plugboard is fixed in the insulating shell, and the plug end of the power connection plugboard extends out of the insulating shell.
In the above scheme, the self-locking end of the self-locking sleeve and the plugging end of the power connection plugboard are located on the same side of the insulating shell.
In the above scheme, the aperture of the hole cavity formed by the enclosing of each pressure-expansion inclined wall is gradually increased along the direction from the fixed end to the self-locking end, the aperture of the hole cavity formed by the enclosing of each limit inclined wall is gradually increased along the direction from the fixed end to the self-locking end, and the aperture of the hole cavity formed by the enclosing of each guide inclined wall is gradually increased along the direction from the fixed end to the self-locking end.
In the above-mentioned scheme, return spring's one end butt is on insulating casing, and the other end butt is on the pressure inflation portion.
In the scheme, the hole cavity formed by enclosing the pressure expansion grooves of each valve platform is matched with the pressure expansion part in shape and is in a cone frustum shape.
In the above scheme, the drawing part and the sliding column part are fixedly connected in a threaded connection mode.
In the scheme, the outer wall of the self-locking plug column mounting end is provided with knurls, and the self-locking plug column mounting end and the insulating base body are connected into a whole in an injection molding mode.
In the above scheme, when the drawing part is pulled in a direction away from the power connection plugboard insertion part, the pressing and expanding part expands the valve platforms in a direction away from each other.
The invention has the advantages that: when the plug is plugged in the self-locking socket, the self-locking sleeve and the self-locking plug column are locked in a self-locking mode, so that the connection strength and the power connection stability of the self-locking sleeve and the self-locking plug column are guaranteed, the safety performance is improved, when the plug needs to be pulled out, the self-locking plug column can be unlocked from the self-locking sleeve by pulling the pull-type pressure expansion column, and the operation is simple and convenient.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of a plug of the switching apparatus shown in FIG. 1;
FIG. 3 is a schematic view of a self-locking sleeve of the plug of FIG. 2;
fig. 4 is a schematic structural diagram of a latching receptacle in the switching apparatus shown in fig. 1.
The reference signs are: the plug 1, the insulating shell 11, the sliding hole 111, the power connection plugboard 12, the base end 121, the plug end 122, the self-locking sleeve 13, the fixed end 131, the self-locking end 132, the self-locking hole 133, the pressure expansion slot 134, the pressure expansion inclined wall 1341, the blocking wall 1342, the self-locking slot 135, the limit inclined wall 1351, the anti-dropping wall 1352, the guide slot 136, the guide inclined wall 1361, the pull-type pressure expansion column 14, the pull-out part 141, the sliding column part 142, the pressure expansion part 143, the pull-pressure inclined wall 1431, the return spring 15,
the self-locking socket comprises a self-locking socket 2, an insulating base body 21, an electric connection jack 211, a self-locking jack 212, an electric connection card 22, a self-locking plug column 23, a mounting end 231, a locking end 232 and an annular locking boss 233.
Detailed Description
(example 1)
The embodiment is a self-locking safety high-current switching electric appliance, and is shown in fig. 1 to 4, and comprises a plug 1 and a self-locking socket 2.
The plug 1 comprises an insulating shell 11, an electric connection plugboard 12, a self-locking sleeve 13, a drawing type pressure expansion column 14 and a reset spring 15;
the power connection plugboard comprises a base end 121 and a plug end 122, the base end of the power connection plugboard is fixed in the insulating shell, and the plug end of the power connection plugboard extends out of the insulating shell.
The self-locking sleeve is provided with a fixed end 131 and a self-locking end 132, the fixed end is in an annular tubular shape, and the fixed end is fixedly arranged in the insulating shell; the self-locking end is provided with four petal tables protruding from the fixed end along the axial direction of the self-locking sleeve, the four petal tables surround to form a self-locking hole 133, and gaps are reserved among the petal tables; the self-locking end of the self-locking sleeve extends out of the insulating shell, and the self-locking end of the self-locking sleeve and the plug-in end of the power connection plugboard are located on the same side of the insulating shell.
The inner wall of each valve platform is sequentially provided with a pressure expansion groove 134, a self-locking groove 135 and a guide groove 136 along the direction from the fixed end to the self-locking end; the pressure expansion groove comprises a pressure expansion inclined wall 1341 and a retaining wall 1342, the self-locking groove comprises a limiting inclined wall 1351 and an anti-falling wall 1352, and the guide groove comprises a guide inclined wall 1361.
The aperture of the pore cavity formed by the enclosing of each pressure expansion inclined wall is gradually increased along the direction from the fixed end to the self-locking end, and the aperture of the pore cavity formed by the enclosing of each limit inclined wall is gradually increased along the direction from the fixed end to the self-locking end. The aperture of the hole cavity formed by enclosing the guide inclined walls is gradually increased along the direction from the fixed end to the self-locking end.
The drawing type pressure expansion column is sequentially provided with a drawing part 141, a sliding column part 142 and a pressure expansion part 143, the insulating shell is provided with a sliding hole 111, the sliding column part is located in the sliding hole of the insulating shell, the drawing part is located outside the insulating shell, and the drawing part is located on one side, away from the plugging end of the power connection plugboard, of the insulating shell.
The reset spring is sleeved on the sliding column part, one end of the reset spring is abutted to the insulating shell, the other end of the reset spring is abutted to the pressure expansion part, and the pressure expansion part is pressed and connected to the blocking wall by the reset spring in a free state.
In this embodiment, the hole cavity formed by the enclosing of the pressure expansion grooves of each valve platform is matched with the pressure expansion part in shape, and both are in a cone frustum shape. The pressure expansion part is provided with a pulling and pressing inclined wall 1431 matched with the pressure expansion inclined wall, and when the pulling part is pulled towards the direction far away from the power connection inserting part, the pulling and pressing inclined wall of the pressure expansion part extrudes the pressure expansion inclined wall, so that the valve platforms are expanded towards the direction far away from each other, and the aperture of the self-locking hole is enlarged. In this embodiment, the drawing part and the sliding column part are fixedly connected in a threaded connection manner.
The self-locking socket 2 comprises an insulating base 21, a power connection card 22 and a self-locking plug column 23.
The insulating base body is provided with an electric connection jack 211 and a self-locking jack 212, and each electric connection card is positioned in a corresponding electric connection jack and used for clamping and connecting the plug-in end of a corresponding electric connection plugboard, so that the electric connection between the plug and the self-locking socket is realized.
The auto-lock post of inserting is located the auto-lock jack, and the auto-lock post of inserting includes installation end 231 and lock joint end 232, and the installation end is fixed to be set up in insulating pedestal, in this embodiment, is equipped with the annular knurl on the outer wall of installation end, and even as an organic whole through moulding plastics mode and insulating pedestal.
The outer wall of the locking end is provided with an annular locking lug boss 233 matched with the self-locking groove, and when the plug is plugged on the self-locking socket, the annular locking lug boss is positioned in the self-locking groove and is locked by the anti-disengaging wall and cannot be directly pulled out of the self-locking groove.
The working mode of the embodiment is as follows: as shown in fig. 1, when the plug is plugged into the self-locking socket, the self-locking sleeve is sleeved on the self-locking plug column, and the annular locking boss of the self-locking plug column is positioned in the self-locking groove and is locked by the anti-release wall, so that the plug cannot be directly pulled out of the self-locking socket; when the plug needs to be pulled out, only the pulling part of the pulling type pressure expansion column needs to be pulled, and the pulling inclined wall of the pressure expansion part extrudes and presses the pressure expansion inclined wall, so that each petal table is propped open towards the direction far away from each other, the aperture of the self-locking hole is enlarged, the self-locking groove does not lock the annular locking boss any more, and the plug can be pulled out from the self-locking socket.
The embodiment has the following advantages: when the plug is plugged in the self-locking socket, the self-locking sleeve and the self-locking plug column are locked in a self-locking mode, so that the connection strength and the power connection stability of the self-locking sleeve and the self-locking plug column are guaranteed, the safety performance is improved, when the plug needs to be pulled out, the self-locking plug column can be unlocked from the self-locking sleeve by pulling the pull-type pressure expansion column, and the operation is simple and convenient.
Claims (3)
1. A self-locking safety high-current switching electric appliance comprises a plug and a self-locking socket; the plug comprises an insulating shell and a power connection plugboard; the self-locking socket comprises an insulating base body and a power connection card; the method is characterized in that:
the plug also comprises a self-locking sleeve, a drawing type pressure expansion column and a reset spring;
the self-locking sleeve is provided with a fixed end and a self-locking end, the fixed end is in an annular tubular shape, and the fixed end is fixedly arranged in the insulating shell; the self-locking end is provided with four petal tables protruding from the fixed end along the axial direction of the self-locking sleeve, the four petal tables enclose to form a self-locking hole, and gaps are reserved among the petal tables; the self-locking end of the self-locking sleeve extends out of the insulating shell; the inner wall of each valve platform is sequentially provided with a pressure expansion groove, a self-locking groove and a guide groove along the direction from the fixed end to the self-locking end; the pressure expansion groove comprises a pressure expansion inclined wall and a retaining wall, the self-locking groove comprises a limiting inclined wall and an anti-release wall, and the guide groove comprises a guide inclined wall; the drawing type pressure expansion column is sequentially provided with a drawing part, a sliding column part and a pressure expansion part, the insulating shell is provided with a sliding hole, the sliding column part is positioned in the sliding hole of the insulating shell, the drawing part is positioned outside the insulating shell, and the drawing part is positioned on one side of the insulating shell, which is far away from the splicing end of the power connection plugboard; the reset spring is sleeved on the sliding column part, and the pressure expansion part is pressed on the blocking wall by the reset spring in a free state; the pressure expansion part is provided with a tension-pressure inclined wall matched with the pressure expansion inclined wall;
the self-locking socket also comprises a self-locking inserting column; the insulating base body is provided with an electric connection jack and a self-locking jack, and each electric connection card is positioned in a corresponding electric connection jack; the self-locking plug-in post is positioned in the self-locking jack and comprises a mounting end and a locking end, the mounting end is fixedly arranged in the insulating base body, the outer wall of the locking end is provided with an annular locking boss matched with the self-locking groove, and when the plug is plugged in the self-locking socket, the annular locking boss is positioned in the self-locking groove;
the aperture of the hole cavity formed by the enclosing of each pressure expansion inclined wall is gradually increased along the direction from the fixed end to the self-locking end, the aperture of the hole cavity formed by the enclosing of each limit inclined wall is gradually increased along the direction from the fixed end to the self-locking end, and the aperture of the hole cavity formed by the enclosing of each guide inclined wall is gradually increased along the direction from the fixed end to the self-locking end;
one end of the return spring is abutted against the insulating shell, and the other end of the return spring is abutted against the pressure expansion part;
when the drawing part is pulled towards the direction far away from the power connection plugboard insertion part, the pressing expansion part expands the valve platforms towards the direction far away from each other.
2. The self-locking safety high-current switching electrical appliance according to claim 1, wherein: the shape of the pore cavity formed by the enclosing of the pressure expansion groove of each valve platform is matched with that of the pressure expansion part, and the pore cavity and the pressure expansion part are in the shape of a cone frustum.
3. The self-locking safety high-current switching electrical appliance according to claim 1, wherein: the outer wall of the self-locking inserting column mounting end is provided with knurls, and the self-locking inserting column mounting end and the insulating base body are connected into a whole in an injection molding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911052975.8A CN110676650B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910108940.5A CN109755809B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
| CN201911052975.8A CN110676650B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910108940.5A Division CN109755809B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110676650A true CN110676650A (en) | 2020-01-10 |
| CN110676650B CN110676650B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911052975.8A Active CN110676650B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
| CN201910108940.5A Active CN109755809B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910108940.5A Active CN109755809B (en) | 2019-02-03 | 2019-02-03 | Self-locking safety heavy-current switch electric appliance |
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| Country | Link |
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| CN (2) | CN110676650B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010003073A1 (en) * | 1999-12-01 | 2001-06-07 | Tomomi Endo | Half-fitting prevention connector |
| CN103794944A (en) * | 2014-01-07 | 2014-05-14 | 清华大学 | One-way operated fast socket device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2549618Y (en) * | 2002-04-10 | 2003-05-07 | 彭慧军 | Plug and socket with central locking mechanism |
| CN202004209U (en) * | 2011-03-03 | 2011-10-05 | 张宁 | Grounded telescopic wedge type civil electric connection device and plug and socket of device |
| CN107171113A (en) * | 2017-05-31 | 2017-09-15 | 周戈 | A kind of bridge facility |
| CN107154551B (en) * | 2017-05-31 | 2018-05-22 | 宁夏中科天际防雷股份有限公司 | It is a kind of manually to supply electrical plug-in connection |
| CN107579389A (en) * | 2017-09-14 | 2018-01-12 | 黄均杰 | It is a kind of can protection against electric shock children's safety electric supply installation |
| CN108233086A (en) * | 2017-09-14 | 2018-06-29 | 魏盛锋 | It is a kind of it is improved-type can the children's safety of protection against electric shock supply electric installation |
-
2019
- 2019-02-03 CN CN201911052975.8A patent/CN110676650B/en active Active
- 2019-02-03 CN CN201910108940.5A patent/CN109755809B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010003073A1 (en) * | 1999-12-01 | 2001-06-07 | Tomomi Endo | Half-fitting prevention connector |
| CN103794944A (en) * | 2014-01-07 | 2014-05-14 | 清华大学 | One-way operated fast socket device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109755809A (en) | 2019-05-14 |
| CN110676650B (en) | 2020-11-24 |
| CN109755809B (en) | 2019-12-10 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201110 Address after: 215000 No. 2011, room 35, No. 1, lion mountain road, Suzhou high tech Zone, Jiangsu Applicant after: SUZHOU XIQUAN SOFTWARE TECHNOLOGY Co.,Ltd. Address before: 213032 No. 666 Liaohe Road, Xinbei District, Jiangsu, Changzhou Applicant before: Lu Weizheng |
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