CN208908273U - A kind of three-pin plug with protective device - Google Patents
A kind of three-pin plug with protective device Download PDFInfo
- Publication number
- CN208908273U CN208908273U CN201821593389.5U CN201821593389U CN208908273U CN 208908273 U CN208908273 U CN 208908273U CN 201821593389 U CN201821593389 U CN 201821593389U CN 208908273 U CN208908273 U CN 208908273U
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- pin
- pedestal
- plug
- firewire
- protective device
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Abstract
The utility model provides a kind of three-pin plug with protective device; each pin can be received into the escape groove of shell; it avoids after plug is hit when idle by weight and exposed pin is damaged; situations such as being broken such as pin bending or pin; extend the service life of plug; pin is also avoided simultaneously to be stepped on by people the case where causing human body to come to harm, and improves the safety in utilization of plug；Plug inside is provided with fuse can circuit connection when short circuit phenomenon occurs for circuit between automatic disconnection of plug and socket, it avoids electric current excessive when short circuit phenomenon occurs to burn out plug or burn out electric appliance along power supply line, reduces the property loss of user.
Description
Technical field
The utility model relates to electrical equipment field, in particular to a kind of three-pin plug with protective device.
Background technique
Three-pin plug is the device that the devices such as electrical home appliances are connected to power supply, and three-pin plug protective device is a kind of protection
Three-pin plug not will receive the device that extraneous factor damages, and existing three-pin plug has following drawback when in use, first
First, on outside, plug base pin is exposed to be not easy to store outside, and pin is influenced to deform by extraneous factor, such as plug
When in the case where being not inserted into socket, exposed pin is stepped on by people or is hit by weight, pin then can be because of by outer
Power and be bent or be broken, the foot of the people for pin of stepping on also has the possibility to come to harm, secondly, on inside, wire short-circuiting is
A kind of common phenomenon, when short circuit occurs for circuit, excessive electric current can burn out plug or burn out electric appliance along power supply line, make
At the property loss of user.
Utility model content
The main purpose of the utility model is to propose a kind of three-pin plug with protective device, plug base pin can be received
Receive, when short circuit phenomenon occurs can voluntarily disconnection of plug and socket circuit connection.
To achieve the above object, the utility model proposes a kind of three-pin plugs with protective device, including shell, ground wire
Pin, live prong and zero line pin, the shell include pedestal and end cap, and the pedestal opens up that there are three insert for ground wire
The pin holes that foot, live prong and zero line pin pass through, so that one end of the earth pin, live prong and zero line pin is stretched
Out except pedestal, the pedestal, which is located at three pin holes, is respectively provided with free bearing, the live prong, earth pin and zero
The other end of line pin is hingedly connected to corresponding free bearing, the pedestal respectively with live prong, earth pin and zero line pin
The corresponding position of rotary motion trace, which is offered, is rocked to the evacuation of storage in the inner for live prong, earth pin and zero line pin
Slot；It is also equipped with fuse mounting base on the free bearing of hinged live prong, has one end of fuse to be connected to fuse mounting base, institute
The other end for stating fuse is connect with the firewire attachment device loaded on pedestal, and pedestal is located at around firewire attachment device installation place
Baffle is formed, the firewire attachment device is installed on the baffle interconnection and is formed by space.
Three-pin plug described in the utility model with protective device, each pin can be received into shell, be avoided slotting
Head damages exposed pin after being hit when idle by weight, such as pin bending or pin are broken feelings
Condition, extends the service life of plug, while also avoiding pin and being stepped on by people the case where causing human body to come to harm, and improves
The safety in utilization of plug；Plug inside be provided with fuse can when short circuit phenomenon occurs for circuit automatic disconnection of plug and socket
Between circuit connection, avoid excessive electric current when short circuit phenomenon occurs and plug burnt out or burns electric appliance along power supply line is crossed
It is bad, reduce the loss of user's property.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of the utility model；
Fig. 2 is that the utility model removes the top view after end cap；
Fig. 3 is that the utility model removes the bottom view after end cap；
Fig. 4 is the schematic diagram of pin folding and spread；
Fig. 5 is the schematic diagram of live prong；
Fig. 6 is the schematic diagram of zero line pin；
Fig. 7 is the schematic diagram of firewire attachment device.
Specific embodiment
Below in conjunction with attached drawing, the technical scheme in the utility model embodiment is clearly and completely described, shows
So, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is practical based on this
Embodiment in novel, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, is fallen within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as up, down, left, right, before and after,
Top, bottom, inside and outside, vertical, transverse direction, longitudinal direction, counterclockwise, clockwise, circumferentially, radially, axially ...), then directionality indicates only
For explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if
When the particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, if relating to the description of " first " or " second " etc. in the utility model embodiment, should " first " or
The description of person " second " etc. is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated
The quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can explicitly or implicitly include to
Few this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be common with this field
Based on technical staff can be realized, this skill will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of art scheme is not present, also not within the protection scope of the requires of the utility model.
The utility model proposes a kind of three-pin plugs with protective device.
In the utility model embodiment, as shown in Fig. 1 to 7, the three-pin plug with protective device, including shell 10,
Earth pin 3, live prong 5 and zero line pin 4, the shell 10 includes pedestal 1 and end cap 2, there are three the pedestal 1 opens up
For the pin holes 20 that earth pin 3, live prong 5 and zero line pin 4 pass through, for the earth pin 3, live prong 5
It being stretched out except pedestal 1 with one end of zero line pin 4, the pedestal 1, which is located at three pin holes 20, is respectively provided with free bearing 30,
The other end of the live prong 5, earth pin 3 and zero line pin 4 is hingedly connected to corresponding free bearing 30, the pedestal respectively with
The corresponding position of the rotary motion trace of live prong 5, earth pin 3 and zero line pin 4 is offered for live prong 5, earth pin 3
The escape groove 40 of storage in the inner is rocked to zero line pin 4；Three pin all foldings can be got up without using when plug, be avoided
The pin is pounded by weight steps on to or by people.It is also equipped with fuse mounting base 51 on the free bearing 30 of hinged live prong 5,
There is one end of fuse 52 to be connected to fuse mounting base 51, the other end of the fuse 52 connects with the firewire loaded on pedestal 1
Connection device 53 connects, and pedestal 1, which is located at around 53 installation place of firewire attachment device, forms baffle 31, the firewire attachment device
53, which are installed on the interconnection of baffle 31, is formed by space.Fuse can when short circuit phenomenon occurs timely disconnection of plug
With the circuit connection of socket, the property loss of reduced user.
Specifically, fuse mounting base 51, the other end of the fuse 52 are also equipped in the firewire attachment device 53
It is connect with loaded on the fuse mounting base 51 in firewire attachment device 53, so that the other end of fuse 52 is connect dress with firewire
Set 53 electrical connections.It should be noted that the free bearing 30, fuse mounting base 51, firewire attachment device 53 are all made of conduction material
Material is made.
Further, 41 arcuation of two sides outer wall of the escape groove 40 is recessed, convenient for that will be accommodated in evacuation when that need to use
The pin of slot 40 rotates outward.
Further, the periphery that pedestal 1 is located at 30 installation place of free bearing forms baffle 31, and the free bearing 30 is installed on described
The interconnection of baffle 31 is formed by space.
Further, the firewire attachment device 53 and it is respectively articulated with the free bearing 30 of ground wire pin 3 and zero line pin 4
Top and side offer a round hole slot 301 respectively, are respectively arranged on two holes in the free bearing and firewire attachment device 53
Slot mutually lead to be formed threading channel select the ground wire in power supply line when connecting the plug with power supply line, remove
The insulating layer of ground wire end exposes the copper core of the inside, and copper core is passed through threading channel and tighten can be easily by the copper core of ground wire
It is fastenedly connected on free bearing 30；Similarly, the firewire in power supply line is selected, the insulating layer of firewire end is removed, according to same side
Copper core in insulating layer is passed through threading channel and tightens to be fastenedly connected the copper core of firewire to connect in firewire easily and filled by method
It sets on 53.The mode of connection of zero curve is also in this way, details are not described herein.
Further, the side of the pedestal 1 offers incoming line 6, is the entrance of power supply line inlet wire, and the pedestal is located at
Position in front of incoming line is additionally provided with tension disc 7, and the tension disc 7 is detachably fastened at pedestal 1 by screw 61, will be electric
Source line presses in pedestal 1, and power supply line is made the copper core for being connected to plug inside will not to be caused to fall off because of external pullling.
Specifically, the both ends of tension disc 7 are respectively equipped with screw via hole 62, the corresponding two screw via holes 62 of the pedestal 1
Position is respectively equipped with through-hole (not shown), and the position of the corresponding through-hole (not shown) of the end cap 2 is equipped with to be cooperated with screw 61
Screw hole (not shown), after plug and power supply line complete line, after the bar portion of screw 61 sequentially passes through through-hole, screw via hole 62
It is screwed on screw hole, pedestal 1 and end cap 2 is connected, and press end cap 2 power supply line on pedestal 1 by tension disc 7.
Specifically, the place molding of the corresponding earth pin 3 of the end cap 2, zero line pin 4 and firewire attachment device 53
Have block (not shown), the block (not shown) is respectively held against difference after the end cap 2 and the pedestal 1 merge closing
The free bearing and firewire attachment device 53 of hinged earth pin 3 and zero line pin 4, have the function that fix its position.
Further, the 2 two sides outer wall of end cap forms ridge 21, when plug is pulled up from socket, plug two
The ridge 21 of side outer wall can allow people to be easier to exert a force, while the ridge 21 also functions to anti-skidding effect.
Specifically, the material of the shell 10 is megohmite insulant, such as plastics, rubber.
It should be noted that the not specified pin is earth pin 3, zero line pin 4 and firewire in embodiment
When which pin of pin 5, it should be understood that the pin includes earth pin 3, zero line pin 4 and live prong 5.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (9)
1. a kind of three-pin plug with protective device, including shell (10), earth pin (3), live prong (5) and zero curve are inserted
Foot (4), it is characterised in that: the shell (10) includes pedestal (1) and end cap (2), and the pedestal (1) opens up that there are three for ground
The pin holes (20) that line pin (3), live prong (5) and zero line pin (4) pass through, so that the earth pin (3), firewire are inserted
One end of foot (5) and zero line pin (4) is stretched out except pedestal (1), and the pedestal (1) is located at three pin holes (20) punishment
Not Zhuan You free bearing, the other end of the live prong (5), earth pin (3) and zero line pin (4) is hingedly connected to corresponding free bearing
(30), the pedestal (1) position corresponding with the rotary motion trace of live prong (5), earth pin (3) and zero line pin (4) respectively
It sets to offer and is rocked to the escape groove (40) of storage in the inner for live prong (5), earth pin (3) and zero line pin (4)；Hinge
It connects and is also equipped with fuse mounting base (51) on the free bearing (30) of live prong (5), there is one end of fuse (52) to be connected to insurance
Silk mounting base (51), the other end of the fuse (52) are connect with the firewire attachment device (53) loaded on pedestal (1), pedestal position
It is formed baffle (31) around firewire attachment device (53) installation place, the firewire attachment device (53) is installed on the gear
Plate (31) interconnection is formed by space.
2. a kind of three-pin plug with protective device as described in claim 1, it is characterised in that: firewire attachment device (53)
On be also equipped with fuse mounting base (51), the other end of the fuse is pacified with loaded on the fuse on firewire attachment device (53)
Seat (51) connection is filled, the free bearing (30), fuse mounting base (51), firewire attachment device (53) are all made of conductive material system
At.
3. a kind of three-pin plug with protective device as described in claim 1, it is characterised in that: the two sides outer wall of escape groove
(41) arcuation is recessed.
4. a kind of three-pin plug with protective device as described in claim 1, it is characterised in that: pedestal is located at free bearing (30)
The periphery of installation place forms baffle (31), and the free bearing (30) is installed on the baffle (31) interconnection and is formed by space
In.
5. a kind of three-pin plug with protective device as described in claim 1, it is characterised in that: the firewire attachment device
(53) and be respectively articulated with ground wire pin (3) and zero line pin (4) free bearing (30) top and side offer one respectively
Round hole slot (301), is respectively arranged on the free bearing and upper two hole slots of firewire attachment device (53) mutually lead to that form threading logical
Road.
6. a kind of three-pin plug with protective device as described in claim 1, it is characterised in that: the one of the pedestal (1)
Side offers incoming line (6), and the position that the pedestal is located in front of incoming line is additionally provided with tension disc (7), the tension disc (7)
It is detachably fastened at pedestal (1) by screw (61), power supply line is pressed in pedestal (1).
7. a kind of three-pin plug with protective device as claimed in claim 6, it is characterised in that: the both ends of tension disc (7)
It is respectively equipped with screw via hole (62), the position of the corresponding two screw via holes (62) of the pedestal (1) is respectively equipped with through-hole, the end
The position of the corresponding through-hole of lid is equipped with the screw hole cooperated with screw (61), after plug and power supply line completion line, screw
(61) bar portion sequentially passes through through-hole, screw via hole (62) is screwed on screw hole afterwards, and pedestal (1) and end cap (2) are connected, and makes
End cap (2) is pressed power supply line on pedestal (1) by tension disc (7).
8. a kind of three-pin plug with protective device as described in claim 1, it is characterised in that: described in end cap (2) is corresponding
The place of earth pin (3), zero line pin (4) and firewire attachment device (53) forms block, and the block is in the end cap
(2) and the pedestal (1) merge be respectively held against after closing be respectively articulated with the free bearing of ground wire pin (3) and zero line pin (4) with
And firewire attachment device (53).
9. a kind of three-pin plug with protective device as claimed in any of claims 1 to 8 in one of claims, it is characterised in that: institute
It states end cap (2) two sides outer wall and forms ridge (21), when plug is pulled up from socket, the ridge (21) of plug both sides outer wall
People can be allowed to be easier to exert a force, while the ridge (21) also functions to anti-skidding effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593389.5U CN208908273U (en) | 2018-09-28 | 2018-09-28 | A kind of three-pin plug with protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593389.5U CN208908273U (en) | 2018-09-28 | 2018-09-28 | A kind of three-pin plug with protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208908273U true CN208908273U (en) | 2019-05-28 |
Family
ID=66613928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821593389.5U Active CN208908273U (en) | 2018-09-28 | 2018-09-28 | A kind of three-pin plug with protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208908273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864689A (en) * | 2021-01-05 | 2021-05-28 | 深圳市绿联科技有限公司 | Power plug, wiring board and electrical apparatus that can accomodate |
-
2018
- 2018-09-28 CN CN201821593389.5U patent/CN208908273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112864689A (en) * | 2021-01-05 | 2021-05-28 | 深圳市绿联科技有限公司 | Power plug, wiring board and electrical apparatus that can accomodate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |