CN214505838U

CN214505838U - Three-stage breaking leakage protection plug

Info

Publication number: CN214505838U
Application number: CN202120575949.XU
Authority: CN
Inventors: 丁晓文; 赵克苏; 吴志荣
Original assignee: Yueqing Andwell Electrical Co ltd
Current assignee: Yueqing Andwell Electrical Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-10-26
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to a tertiary disconnected earth leakage protection plug that divides, its characterized in that: it includes the casing that constitutes by epitheca and inferior valve and can dismantle the plug body of setting in the casing, the plug body is including being used for fixed ground wire inserted sheet, live wire inserted sheet, zero line inserted sheet and being equipped with the mount of zero fire on-off mechanism, the upside of mount is equipped with the circuit board, the circuit board with be equipped with the support frame that is used for placing the ground connection shell fragment between the mount, just ground connection shell fragment one end is buckled the after-fixing and is set up on the support frame, and the other end setting is at the upside of the contact piece of being connected with the ground wire inserted sheet, the one end that the ground connection shell fragment is located the contact piece upside can drive when zero fire on-off mechanism break-make and contact or break away from. Through setting up the support frame, it is more accurate quick when the assembly ground connection shell fragment, improve plug production efficiency.

Description

Three-stage breaking leakage protection plug

Technical Field

The utility model relates to a low-voltage apparatus's protection device field, concretely relates to tertiary disconnected earth leakage protection plug that divides.

Background

The use of various electrical appliances is increasing at home, school, office and even in public places, which shows that on one hand, the physical life of people is improved, the office conditions are improved, but on the other hand, the hidden danger of safety loss is hidden. The safety hazards presented here are mainly the following: firstly, the poor quality of the line causes the electrification of the shell of the electric appliance; secondly, the user lays a line with a loss of standard; thirdly, the electrical socket is in wrong wiring; and fourthly, the power grid is unstable. Among the hidden dangers, the electric shock accidents and/or the electric appliance burnout caused by the most prominent electrification of the outer shell and the ground wire of the electric appliance are more. The leakage protection plug can avoid the accidents to a certain extent to play a role in safety guarantee, but the on-off device of the leakage protection plug in the prior art only plays a role in breaking the two-pole live wire and the neutral wire of the power supply end and cannot break the earth wire which is electrified due to abnormity, so that the potential electric shock hazard cannot be avoided.

Therefore, a three-level breaking leakage protection plug appears in the market, which can realize the three-pole disconnection of zero, fire and earth, thereby better realizing the leakage protection effect, most of the leakage protection plugs of the on-off type of the live wire, the zero line and the earth wire visible in the market are additionally provided with an earth wire contact elastic sheet on a device for on-off of the live wire and the zero line, when the contact elastic sheet is installed, the contact elastic sheet needs to be directly welded on a circuit board, the welded circuit board is assembled into a shell, and the leakage protection plug is also provided with a zero-line breaking mechanism, so when the leakage protection plug is assembled, the welded circuit board is adopted for installation, and the contact with the earth wire contact head is poor easily because the position of the earth wire contact elastic sheet during welding deviates, thereby the contact with the earth wire contact head is poor, and the occurrence of poor finished products is caused.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a tertiary disconnected earth leakage protection plug that divides.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a tertiary disconnected earth leakage protection plug that divides, its includes the casing that constitutes by epitheca and inferior valve and can dismantle the plug body that sets up in the casing, the plug body is including the mount that is used for fixed ground wire inserted sheet, live wire inserted sheet, zero line inserted sheet and is equipped with zero fire on-off mechanism, the upside of mount is equipped with the circuit board, the circuit board with be equipped with the support frame that is used for placing the ground connection shell fragment between the mount, just fixed setting after ground connection shell fragment one end is buckled is in on the support frame, and the other end sets up the upside at the contact piece of being connected with the ground wire inserted sheet, the one end that the ground connection shell fragment is located the contact piece upside can drive when zero fire on-off mechanism break-make and contact or break away from with the contact piece.

The support frame upside is equipped with the sunk space that is used for placing the ground connection shell fragment, the front end in sunk space is equipped with the opening groove, the rear end in sunk space is equipped with the bayonet socket that is used for fixed ground connection shell fragment.

And a step is arranged at the position, close to the bayonet, of the rear side of the recessed space.

The two sides of the support frame extend upwards to form buckles.

Two sides of the supporting frame extend upwards to form a first supporting column for supporting the circuit board.

The rear end of the supporting frame extends downwards to form a second supporting column which can be in contact with the surface of the fixed seat.

The front end of the support frame extends downwards to form a third support column which can be contacted with the contact piece.

The zero-fire on-off mechanism comprises a switch pressing rod, the switch pressing rod is arranged in the shell and can move axially, the end part of the switch pressing rod penetrates through the upper shell to form a pressing part, the bottom side of the switch pressing rod extends towards one side to form a boss, and the switch pressing rod can drive the grounding elastic sheet to be separated from the contact piece when moving axially upwards.

The circuit board upper end is equipped with the clamp plate, be equipped with the elastic component between clamp plate and the ground connection shell fragment.

The utility model has the advantages that: through setting up the support frame, install in this support frame through grounding elastic sheet when using, and carry out the position by the support frame and inject, then arrange the semi-manufactured goods mount in through the support frame after will assembling on, and can accomplish the assembly of the semi-manufactured goods of plug at the upper side mounting circuit board, then only need pack into the casing with the semi-manufactured goods of plug, clamp plate and rubber button, can accomplish the plug equipment, when the assembly, positional deviation can not appear in this grounding elastic sheet, can guarantee the yield of assembly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic diagram of the internal structure of the present invention.

Fig. 4 is a schematic sectional view of the internal structure of the present invention.

Fig. 5 is a schematic structural view of the support frame of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in the figure, a tertiary disconnected earth leakage protection plug that divides, it includes the casing that comprises epitheca 1 and inferior valve 2 and can dismantle the plug body who sets up in the casing, and the epitheca seals with the inferior valve and constitutes a complete casing, and the plug body is then set up in this casing to accomplish a complete plug, the plug body is including being used for fixed ground wire inserted sheet, live wire inserted sheet, zero line inserted sheet and being equipped with zero fire on-off mechanism's mount 3, and one side of mount 3 is equipped with zero fire on-off mechanism's mounting structure 4, and the opposite side then sets up three slot, is used for fixed ground wire inserted sheet 11, live wire inserted sheet, zero line inserted sheet respectively, and wherein zero fire on-off mechanism adopts the similar structure of conventional earth leakage protection plug, can realize zero fire line disconnection through the action when detecting leakage signal promptly.

The upside of mount 3 is equipped with circuit board 5, the circuit board with be equipped with the support frame 8 that is used for placing the ground connection shell fragment between the mount, better fixed ground connection shell fragment 7 when this support frame mainly used installation avoids it to take place the offset, can improve production efficiency simultaneously to play the effect of certain fixed ground wire inserted sheet, live wire inserted sheet, zero line inserted sheet, ground connection shell fragment one end is buckled the after-fixing and is set up on the support frame, and the other end setting is at the upside of the contact piece 6 of being connected with the ground wire inserted sheet, the one end that the ground connection shell fragment is located the contact piece upside can drive when the break-make of zero fire break-make mechanism or break away from with the contact piece contact.

The support frame 8 is of an approximate fan-shaped structure, a sunken space 86 for placing a grounding elastic sheet is arranged on the upper side of the support frame, the width of the sunken space 86 is consistent with that of the grounding elastic sheet to limit the left and right movement of the grounding elastic sheet, a notch groove 89 is formed in the front end of the sunken space, one end, provided with a contact, of the grounding elastic sheet is convenient to extend out of the notch groove and can be in contact with a contact piece arranged on a fixing frame to realize electric connection, a bayonet 88 used for fixing the grounding elastic sheet is arranged at the rear end of the sunken space, the rear end of the grounding elastic sheet is embedded in the bayonet 88 to realize limiting in the length direction, and the grounding elastic sheet on the side is bent upwards to facilitate connection of the grounding elastic sheet and a circuit board.

The rear side of the recessed space is provided with a step 85 at a position close to the bayonet 88, so that a certain gap is formed between the grounding elastic sheet arranged in the recessed space and the bottom, and the grounding elastic sheet can be better contacted with the contact of the contact sheet.

The both sides of support frame 8 upwards extend and form buckle 81, set up the breach corresponding with the buckle on the circuit board, utilize buckle and breach to constitute spacing cooperation, also be equipped with the buckle that upwards extends in addition on the mount, and four buckles are connected with the circuit board, realize fixedly, also can guarantee simultaneously that the support frame is located the mount all the time, play fixed effect.

The both sides of support frame upwards extend and form first support column 82 that is used for supporting the circuit board, play certain supporting role to the circuit board, also can utilize the circuit board to its pressure simultaneously, with the pressure of this pressure conversion to support frame butt contact piece and live wire inserted sheet, zero line inserted sheet, guarantee the installation reliability of contact piece and live wire inserted sheet, zero line inserted sheet.

Support frame rear end downwardly extending forms can with fixing base surface contact's second support column 83, this second support column direct mount at the mount upper surface, and its bottom has the notch simultaneously, can cover the ground connection inserted sheet, can play the effect of fixed ground connection inserted sheet.

The front end of the supporting frame extends downwards to form a third supporting column 84 which can be contacted with the contact piece, the third supporting column is arranged on the upper side of the contact piece, and when the contact piece is pressed downwards, the contact piece is tightly pressed on the upper surface of the fixed frame. And the front end at the support frame extends the portion 87 that presses that forms to both sides, should press the portion that presses the upside of live wire inserted sheet, zero line inserted sheet when the support frame is installed on the mount, plays the effect of restriction live wire inserted sheet, zero line inserted sheet.

The zero-fire on-off mechanism comprises a switch pressing rod, the switch pressing rod is arranged in the shell and can move axially, the end part of the switch pressing rod penetrates through the upper shell to form a pressing part, the bottom side of the switch pressing rod extends towards one side to form a boss 41, and the switch pressing rod can drive the grounding elastic sheet to be separated from the contact piece when moving axially upwards.

The upper end of the circuit board is provided with a pressing plate 9, and an elastic piece is arranged between the pressing plate and the grounding elastic piece. Be equipped with cylinder 91 on the clamp plate, this cylinder passes circuit board 5 and sets up, and sets up the elastic component between cylinder and support frame, plays the effect of pressing the ground connection shell fragment downwards and contact piece contact, and this elastic component pot head is established on the cylinder, by cylinder restricted position, and the other end supports to press on the ground connection shell fragment, gives the decurrent reset force of ground connection shell fragment.

The upper side of the pressing plate is provided with a rubber key which coats the switch pressing rod and the control switch, so that the whole shell is more attractive.

The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of the present invention.

Claims

1. The utility model provides a three-level disconnected electric leakage protection plug which characterized in that: it includes the casing that constitutes by epitheca and inferior valve and can dismantle the plug body of setting in the casing, the plug body is including being used for fixed ground wire inserted sheet, live wire inserted sheet, zero line inserted sheet and being equipped with the mount of zero fire on-off mechanism, the upside of mount is equipped with the circuit board, the circuit board with be equipped with the support frame that is used for placing the ground connection shell fragment between the mount, just ground connection shell fragment one end is buckled the after-fixing and is set up on the support frame, and the other end setting is at the upside of the contact piece of being connected with the ground wire inserted sheet, the one end that the ground connection shell fragment is located the contact piece upside can drive when zero fire on-off mechanism break-make and contact or break away from.

2. A three-stage breaking leakage protection plug according to claim 1, wherein: the support frame upside is equipped with the sunk space that is used for placing the ground connection shell fragment, the front end in sunk space is equipped with the opening groove, the rear end in sunk space is equipped with the bayonet socket that is used for fixed ground connection shell fragment.

3. A three-stage breaking leakage protection plug according to claim 2, wherein: and a step is arranged at the position, close to the bayonet, of the rear side of the recessed space.

4. A three-stage breaking leakage protection plug according to claim 1, 2 or 3, wherein: the two sides of the support frame extend upwards to form buckles.

5. A three-stage breaking leakage protection plug according to claim 4, wherein: two sides of the supporting frame extend upwards to form a first supporting column for supporting the circuit board.

6. A three-stage breaking leakage protection plug according to claim 1, 2 or 3, wherein: the rear end of the supporting frame extends downwards to form a second supporting column which can be in contact with the surface of the fixed seat.

7. A three-stage breaking leakage protection plug according to claim 6, wherein: the front end of the support frame extends downwards to form a third support column which can be contacted with the contact piece.

8. A three-stage breaking leakage protection plug according to claim 1, wherein: the zero-fire on-off mechanism comprises a switch pressing rod, the switch pressing rod is arranged in the shell and can move axially, the end part of the switch pressing rod penetrates through the upper shell to form a pressing part, the bottom side of the switch pressing rod extends towards one side to form a boss, and the switch pressing rod can drive the grounding elastic sheet to be separated from the contact piece when moving axially upwards.

9. A three-stage breaking leakage protection plug according to claim 1, wherein: the circuit board upper end is equipped with the clamp plate, be equipped with the elastic component between clamp plate and the ground connection shell fragment.