CN210245782U - High earth leakage protection plug of security - Google Patents
High earth leakage protection plug of security Download PDFInfo
- Publication number
- CN210245782U CN210245782U CN201921462828.3U CN201921462828U CN210245782U CN 210245782 U CN210245782 U CN 210245782U CN 201921462828 U CN201921462828 U CN 201921462828U CN 210245782 U CN210245782 U CN 210245782U
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- ground wire
- contact
- movable
- movable contact
- fixed contact
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Abstract
The utility model discloses a high earth leakage protection plug of security, including the plug body, the pressure arm, ground wire fixed contact, ground wire movable contact, movable piece and first spring, the one end and the plug body bottom of first spring are connected, the other end is connected with the movable piece, ground wire movable contact sets up on the movable piece, ground wire fixed contact is located ground wire movable contact and ground wire movable contact mutually contact under the effect of not receiving the external force directly over and, the pressure arm promotes the movable piece to move down when being used for the pressure arm to move down in order to make ground wire fixed contact and ground wire movable contact contactless when being located the top of movable piece, under the condition that the product breaks off, the pressure arm pushes down, first spring is compressed, ground wire fixed contact and ground wire movable contact break off; under the condition that the product is electrified, the movable sheet is rebounded by the first spring at the lower end to move upwards, and after a certain stroke, the movable contact of the ground wire is contacted with the fixed contact of the ground wire to achieve the effect of connecting the ground wire, so that the stability of a ground wire contact system is ensured.
Description
Technical Field
The utility model relates to a safety plug technical field, especially a high earth leakage protection plug of security.
Background
The existing ground wire disconnecting mode of the tripolar disconnectable leakage protection plug has the problems that the ground wire can not be disconnected, the contact pressure is insufficient and the like due to the fact that the ground wire is disconnected for many times and the blades are likely to generate inelastic deformation after the ground wire is disconnected and closed due to the fact that the ground wire disconnecting gap is small, and the safety of the protection plug is reduced.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a high earth leakage protection plug of security.
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides a high earth leakage protection plug of security, includes plug body, pressure arm, ground wire fixed contact, ground wire movable contact, movable plate and first spring, the one end and the plug body bottom of first spring are connected, the other end is connected with the movable plate, ground wire movable contact sets up on the movable plate, ground wire fixed contact is located ground wire movable contact directly over and ground wire fixed contact and ground wire movable contact each other under the effect of not receiving the external force, the top that the pressure arm is located the movable plate promotes the movable plate and moves down so that ground wire fixed contact and ground wire movable contact contactless when being used for pressing the arm to move down.
As a further improvement of the utility model, the pressure arm is arranged on the reset column of the plug body.
As a further improvement, the outer side wall of the part of the plug body, in which the reset column protrudes, is provided with a boss, and a second spring is arranged between the boss and the plug body.
As a further improvement, the plug body is provided with a groove matched with the movable piece so that the movable piece can be kept moving up and down in the vertical direction in the area limited by the groove.
As a further improvement of the utility model, the ground wire fixed contact and the ground wire movable contact are both set to be T-shaped.
The beneficial effects of the utility model
Compared with the prior art, the utility model has the advantages of:
the utility model has the advantages that under the condition that the product is disconnected (the product is hung and buckled), the pressing arm is pressed downwards, the lower end of the pressing arm presses the movable sheet, the downward pressure of the pressing arm is greater than the elastic force of the first spring at the lower end of the movable sheet, the first spring is compressed, and the ground wire fixed contact is disconnected with the ground wire movable contact; under the circumstances of product circular telegram (product is hung and is detained), when pressing the arm and moving up with the post that resets, the activity piece is kick-backed up the activity by the first spring of lower extreme, and ground wire movable contact and ground wire fixed contact reach the ground wire effect of putting through after certain stroke, at this moment, first spring also has partial elasticity to provide the activity piece, converts pressure between the contact into, and it is firm to make ground wire movable contact and ground wire fixed contact be connected, guarantees that ground wire contact system is stable, has improved the safety in utilization.
Drawings
Fig. 1 is a schematic structural view of the utility model in a state of hanging buckle.
Fig. 2 is a schematic structural diagram of the present invention in a tripping state.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 and 2, a high-safety earth leakage protection plug includes a plug body 1, a pressing arm 2, a ground wire fixed contact 3, a ground wire movable contact 4, a movable piece 5, and a first spring 6, one end of the first spring 6 is connected to the bottom of the plug body 1, the other end is connected to the movable piece 5, the ground wire movable contact 4 is disposed on the movable piece 5, the ground wire fixed contact 3 is located right above the ground wire movable contact 4 and the ground wire fixed contact 3 and the ground wire movable contact 4 are in contact with each other without an external force, and the pressing arm 2 is located above the movable piece 5 and used for pushing the movable piece 5 to move downward when the pressing arm 2 moves downward so that the ground wire fixed contact 3 and the ground wire movable contact 4 are not in contact.
Under the condition that a product is disconnected (a product is hung and buckled), the pressing arm 2 is pressed downwards, the lower end of the pressing arm 2 presses the movable sheet 5, the downward pressure of the pressing arm 2 is greater than the elastic force of a first spring 6 at the lower end of the movable sheet 5, the first spring 6 is compressed, and the ground wire fixed contact 3 is disconnected with the ground wire movable contact 4; under the circumstances of product circular telegram (product is hung and is detained), when pressing arm 2 and the post up activity that resets, movable plate 5 is kick-backed up the activity by the first spring 6 of lower extreme, ground wire movable contact 4 reaches ground wire switch-on effect with the contact of ground wire fixed contact 3 after certain stroke, at this moment, first spring 6 also has partial elasticity to provide movable plate 5, convert pressure between the contact into, it is firm to make ground wire movable contact 4 be connected with ground wire fixed contact 3, guarantee that ground wire contact system is stable.
The pressure arm 2 is arranged on a reset column 7 of the plug body 1 and is driven by the reset column 7 to move downwards.
Further, the outer side wall of the portion, protruding out of the plug body 1, of the reset column 7 is provided with a boss 71, a second spring 8 is arranged between the boss 71 and the plug body 1, and the second spring 8 is helpful for driving the reset column 7 to move upwards under the condition that a product is electrified (the product is hung and buckled), so that the pressure arm 2 is driven to move upwards.
Further, the inside recess 9 that is provided with and moves the piece 5 assorted of plug body 1 so that the piece 5 can keep reciprocating in the vertical direction in the region that recess 9 was injectd, has guaranteed ground wire contact system steady operation.
Preferably, the ground fixed contact 3 and the ground movable contact 4 are both arranged in a "T" shape, and the "T" shape structure helps to increase the contact area of the ground fixed contact 3 and the ground movable contact 4, so as to avoid the occurrence of poor contact.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. The utility model provides a high earth leakage protection plug of security which characterized in that, includes plug body, pressure arm, ground wire fixed contact, ground wire movable contact, movable piece and first spring, the one end and the plug body bottom of first spring are connected, the other end is connected with the movable piece, ground wire movable contact sets up on the movable piece, ground wire fixed contact is located ground wire movable contact directly over and ground wire movable contact is contacted each other not receiving ground wire fixed contact and ground wire movable contact under the effect of external force, the top that the pressure arm is located the movable piece promotes the movable piece and moves down so that ground wire fixed contact and ground wire movable contact contactless when being used for pressing the arm to move down.
2. A leakage protection plug with high safety according to claim 1, wherein:
the pressure arm is arranged on the reset column of the plug body.
3. A leakage protection plug with high safety according to claim 2, wherein:
the outer side wall of the part, protruding out of the plug body, of the reset column is provided with a boss, and a second spring is arranged between the boss and the plug body.
4. A leakage protection plug with high safety according to claim 1, wherein:
the plug body is internally provided with a groove matched with the movable sheet so that the movable sheet can keep moving up and down in the vertical direction in an area limited by the groove.
5. A leakage protection plug with high safety according to claim 1, wherein:
the ground wire fixed contact and the ground wire movable contact are both arranged to be T-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462828.3U CN210245782U (en) | 2019-09-04 | 2019-09-04 | High earth leakage protection plug of security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462828.3U CN210245782U (en) | 2019-09-04 | 2019-09-04 | High earth leakage protection plug of security |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210245782U true CN210245782U (en) | 2020-04-03 |
Family
ID=69963565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921462828.3U Active CN210245782U (en) | 2019-09-04 | 2019-09-04 | High earth leakage protection plug of security |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210245782U (en) |
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2019
- 2019-09-04 CN CN201921462828.3U patent/CN210245782U/en active Active
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