CN207320482U - Safety socket - Google Patents

Abstract

The utility model discloses a kind of safety socket, for three-pin plug of the grounding electrode column than remaining two electrode column length, the safety socket includes grounding electrode, zero wire electrode and firewire electrode, wherein, the position that grounding electrode is pointed to grounding electrode column is provided with plug electrode via；The safety socket further includes：Pressure-bearing body, is grounding electrode column start, the side at least towards grounding electrode column is isolation material positioned at the front end in grounding electrode column start direction；Movable contact spring, fixes or is bonded on the one end of pressure-bearing body away from grounding electrode column, and is connected with one of firewire electrode or fire-wire power line；Static contact, it is opposite with movable contact spring and leave dynamic circuit connector gap, and with firewire electrode or another connection of fire-wire power line；And resetting structure or device, the reset for movable contact spring.For socket according to the utility model while reliability is ensured, security is also very good.

Description

Safety socket

Technical field

A kind of safety socket is the utility model is related to, belongs to the socket for preventing that children from getting an electric shock.

Background technology

Safety socket has multiclass, wherein it is the socket for aiming at protection children's Electrical Safety and designing to have one kind, commonly referred to as Children safe socket.Children safe socket is distinguished from principle, mainly there is two kinds, one is Purely mechanical, it is another kind of, be Pure electronic type, with the development of technology, it have also appeared a kind of mechanical electronic mode.

Although safety socket species is various, most widely used is still safety mechanical socket, and most common safety is inserted Very simple in seat principle, such safety socket application wedge mechanism is constructed.In general, plug electrode column generally has two kinds of knots Structure, one is cylindrical electrode column, another is sheet electrodes column, but no matter which kind of electrode column, its head end is respectively provided with guiding structural, Such as cylindrical electrode column, its head end are typically bulb, and it is typically round end for sheet electrodes column, its head end.Correspondingly, mesh Preceding most widely used safety socket, it has a sheet body structure, the one end of the sheet body structure in limited direction of both ends Fin with three corresponding masking receptacle sockets, the end of fin has inclined-plane on the direction at limited both ends, is limited The other end in direction of both ends is then equipped with a spring.When plug is inserted into, the inclined-plane on the head and fin of electrode column coordinates, production Raw certain pressure angle, so that sheet body structure can be made to be subject to the component of a horizontal direction, and by sheet body structure from shielded jack Position push open.When plug is pulled up, under the reset force that spring is provided, fin resets and shielded jack.

Although safety socket species is various, safety mechanical socket almost occupies whole market share mentioned by epimere 95%, it is that its structure is very simple, cost is low, and has higher occupation rate of market.But it is there are an inherent shortcoming, The movement of its sheet body structure depend on plug insertion dynamics, considered also exactly children's strength is relatively small, however, The defects of due in self structure and manufacture craft, many such plug insertions are extremely difficult, or even can not be inserted at all, in fact Most of public encountered such situation, although attempting a variety of methods, but still can not be inserted into plug.

The reason for causing the above problem is that sheet body structure can be produced with other parts in socket and contacted, due to safety Socket is typically moulding, and moulding is based on technologic reason, its surface or structure can produce bigger inconsistency, The safety socket of volume production, it is very big that it is inserted into dynamics difference.

Relative to the safety mechanical socket that insertion is difficult, electronic safety socket does not have the constraint of mechanical structure, jack Will not be shielded.Electronic safety socket is controlled mainly by the very small solid-state relay of individual, zero wire electrode and firewire electrode Solid-state relay interlocking, only two electrodes have electrode column plug-in type at the same time, just understand power transmission.And children are traditionally only can be same Foreign matter is inserted into Shi Xiangyi hole, so that such safety socket, while security is ensured, plug becomes very easy.It is but such Safety socket is although security is relatively good, and plug is easier, but because its is expensive, the market share is very small.In addition, Controlled using relay, it is affected by environment bigger.And its maintenanceability is relatively poor, for safety mechanical socket, nothing By machinery machinery still in the fog is understood, it can substantially be seen after dismantling and understand its structure, and for electronic safety socket, once damage Bad, it lies substantially in a kind of not maintainable condition.

Therefore, it is still safety mechanical socket that existing market share accounting is highest, on the basis of foregoing slice structure On make various changes, but often the market share is all limited, and such as CN102290691A, two power supply inserted sheets pair are required in its principle When two clamping piece force ratios are more uniform, just unlock, however, as aforesaid, user of service is when being inserted into plug, two electricity Pole is difficult to accomplish to be exactly perpendicularly to socket, that is, is difficult to accomplish uniform force application, and cannot effectively be unlocked.

In some implementations, the safety socket for each one manual switch of jack configurations, manual switch configuration are passed through On firewire, closed type is switched, the jack corresponding to firewire powers on.Its purpose is lain also in, and children patrol the understanding shortcoming of things Property is collected, lower switch will not be first pressed, then again be inserted into foreign matter.However, for electricity consumption of being grown up, there is press to hold during electricity consumption for meeting Close, but when electricity consumption may not will recognize that and will switch disjunction.

It should be strongly noted that although in the foregoing safety socket use with slice structure exist so or that The defects of sample, but its market share is very big, its basic reason is that its structure is very simple, and not only cost is low, actually due to Simple in structure, link is few, and failure rate is also very low.

Utility model content

In view of this, the utility model is still started with from angle simple in structure, there is provided a kind of simple in structure mechanical Safety socket, for the socket while reliability is ensured, security is also very good.

Embodiment according to the utility model, there is provided a kind of safety socket, for grounding electrode column than remaining two electrode column Long three-pin plug, the safety socket include grounding electrode, zero wire electrode and firewire electrode, wherein, grounding electrode is pointed to connect The position of ground electrode column is provided with plug electrode via；The safety socket further includes：

Pressure-bearing body, is grounding electrode column start positioned at the front end in grounding electrode column start direction, at least towards ground connection electricity The side of pole is isolation material；

Movable contact spring, it is fixed or be bonded on the one end of pressure-bearing body away from grounding electrode column, and with firewire electrode or fire-wire power One of line connects；

Static contact, it is opposite with movable contact spring and leave dynamic circuit connector gap, and with firewire electrode or another connection of fire-wire power line；With And

Resetting structure or device, the reset for movable contact spring.

Above-mentioned safety socket, alternatively, movable contact spring and resetting structure are integrated into a main reed, which includes：

Mounting portion, for being fixedly connected with pressure-bearing body, and side of the mounting portion away from pressure-bearing body is configured to movable contact spring；

Fixed plate, the structural portion installed for main reed on safety socket housing.

Alternatively, main reed has：

First structure：Fixed for one end, the reed that the other end overhangs, wherein there is the fixation for fixed one end Plate, one end of overhanging have the mounting portion；

Second structure：For symmetrical arcuate structure, the both ends of arcuate structure are respectively furnished with a fixed plate, and centre is furnished with One mounting portion.

Alternatively, in the second structure, mounting portion is a seat slot for carrying centre bore, and the notch of seat slot is towards pressure-bearing body；

Correspondingly, pressure-bearing body then includes the mounting base of embedded seat slot, which has the blind hole for being pointed to centre bore；

A trip bolt is provided, for being used for being fixedly connected for mounting base and seat slot by centre bore and blind hole.

Alternatively, an auxiliary spring piece is additionally provided with side of the main reed away from pressure-bearing body, which includes：

Mounting surface, assembling is bonded for auxiliary spring piece with main reed；

Pars convoluta, self installation face, which is risen, to overhang.

Alternatively, it is equipped with contrary flexure portion in the end of pars convoluta.

Alternatively, auxiliary spring piece is bilateral symmetry, and the middle part of the bilateral symmetry is equipped with the mounting surface, is installing The right and left in face is respectively provided with a pars convoluta；

The center of circle of two pars convolutas is identical.

Alternatively, main reed, auxiliary spring piece and pressure-bearing body are fixedly connected by same fastener each other.

Alternatively, a partition plate is equipped with the housing of safety socket, grounding electrode is installed in partition plate one side, main reed Then it is located at the opposite side of partition plate；

Correspondingly, partition plate is provided with the partition plate via passed through for grounding electrode column.

Alternatively, a cavity volume is formed between the bottom case of partition plate and housing, main reed is located in cavity volume；

Wherein, formed with the erecting bed for protruding from bottom case on bottom case, which is used to install main reed.

Safety socket according to the utility model embodiment is, it is necessary to which corresponding plug has specific structure, i.e., it is grounded Electrode column is relatively long, and power is done with provide pressure-bearing body running stroke.And with the pressure-bearing body of grounding electrode insulation construction based on Pedestal, for carrying movable contact spring, is in normally open, and be based on grounding electrode column between the movable contact spring and the static contact provided Start and realize dynamic circuit connector, i.e. the closure of movable contact spring and static contact.Due to movable contact spring and static contact accordingly with firewire electrode or Fire-wire power line connects, so that, based on dynamic circuit connector, only when plug is inserted into or grounding electrode has foreign matter to be inserted into certain depth When, firewire electrode just forms electrical connection between meeting and fire-wire power line, two jacks are inserted into for children, while by foreign matter Likelihood ratio it is relatively low, therefore, thereby structure has relatively good security.Simultaneously as be pure mechanic structure, and based on straight Dynamic circuit connector is realized in line movement, and operating principle and structure are all fairly simple, and link is few, and the likelihood ratio of failure is relatively low, and has phase To higher reliability.

Brief description of the drawings

Fig. 1 is a kind of safety socket structure schematic diagram in an embodiment（Omit most of housing and slot assembling structure）.

Fig. 2 is that socket principle explosive view is installed in an embodiment.

Fig. 3 is a kind of pressure-bearing body structure diagram.

Fig. 4 is a kind of static contact structure diagram.

Fig. 5 is a kind of auxiliary spring chip architecture schematic diagram.

Fig. 6 is a kind of main reed structure schematic diagram.

Fig. 7 is a kind of grounding electrode structure schematic diagram.

In figure：1. pressure-bearing body, 2. auxiliary spring pieces, 3. fire-wire power lines, 4. housings, 5. static contacts, 6. main reeds, 7. partition plates, 8. grounding electrode, 9. firewire electrodes, 10. zero wire electrodes, 11. zero curve power cords, 12. connection electric wires, 13, erecting bed.

101. pressure-bearing portion, 102. mounting bases, 103. blind holes.

201. contrary flexure portions, 202. pars convolutas, 203. mounting surfaces, 204. installation vias.

501. mounting holes, 502. sheet bodies.

601. mounting holes, 602. fixed plates, 603. reed bodies, 604. seat slots, 605. centre bores.

801. grounding parts, 802. electrode reeds, 803. plug electrode vias, 804. mounting holes, 805. seat boards.

Embodiment

Known, household socket is generally single-phase three wire system or single-phase-two-wire socket at present, and with single-phase three-wire Based on socket processed, in the embodiment of the utility model, improvement of safety is proposed mainly for single-phase three wire system socket.In addition, Based on this improvement, for the socket of single-phase-two-wire, firewire electrode 9 and fire-wire power can also be controlled using zero wire electrode column Electrical connection between line 3.

Due to according to the utility model, improvement mainly at grounding electrode 8 and institute's control structure component improvement, remaining Part mainly uses existing structure, therefore, omission is made that to the part that the prior art is related in Figure of description, with more Clearly indicate and be correspondingly improved part, as shown in Figure 1, most omission has been carried out to housing 4 in Fig. 1, can be clear The distribution for reflecting three electrodes and its assembling structure, and partition plate 7 is omitted, for reflecting below partition plate 7 Component.

It will be appreciated that though the mounting means or modes of emplacement of safety socket are different, but the general table with socket Before face is known as, corresponding plate body is commonly referred to as panel, and the housing parts opposite with panel are commonly referred to as then bottom plate, for shape Into the other parts of housing 4, commonly referred to as casing.For housing 4, it usually opens socket in panel, and the head end of casing is used to draw Enter power cord, bottom case, which is generally used for being fixed on metope, either can for example place on the ground or pacify as placement plate face On metope.

On the electrode of plug, mainly there is two kinds at present, one kind is cylinder electrode, and another kind is pellet electrode, it is opposite and Speech, the plug market share with pellet electrode compare larger.

Safety socket shown in attached drawing 1, is the assembling structure of the single socket unit of safety socket, for example on insert row, Multiple such socket units can be configured, each socket unit realizes the control of socket unit by respective dynamic circuit connector component System.

For the plug of single-phase three wire system, it is subject to corresponding, its socket is also single-phase three-phase system socket, it is possible to understand that It is that for grounding electrode 8, it is usually not charged, " ground connection " in grounding electrode 8 is protective ground, rather than feature connects Ground（There are functional grounding in three-phase four-wire system or three-phase five-wire mode, actually refer to the neutral conductor）, in case firewire string is electric.

In general, if socket does not produce failure, grounding electrode 8 is not charged.In addition, for zero wire electrode 10, usually And safety, therefore the control to safety socket is configured in 9 side of firewire electrode.

Be subject to it is corresponding, to realize one of the utility model purpose, it is necessary to which the grounding electrode column of plug is than remaining two electrode Column length, grounding electrode column is compared to the keying that the part that remaining two electrode column is grown is used to provide dynamic circuit connector component.

As the safety socket of single-phase three wire system, it at least has one group of grounding electrode 8, zero wire electrode 10 in housing 4 With firewire electrode 9, in certain embodiments, each group as a unit, each unit possesses a grounding electrode 8, one A zero wire electrode 10 and a firewire electrode 9.

In further embodiments, each group as a unit, each unit possesses a grounding electrode 8 and two 10, two firewire electrodes 9 of zero wire electrode, zero wire electrode 10 is corresponded with firewire electrode 9, and respectively constitutes a junior unit, Two junior units in one unit are symmetrical on grounding electrode 8, when a single-phase three wire system plug is inserted into, another small list Member can regard single-phase-two-wire socket unit and use.

In Fig. 7, grounding electrode 8, which has, to be located below（Using bottom plate as reference direction below herein）Seat board 805, insert row Use this class formation；And in certain embodiments, the seat board 805 of grounding electrode 8 can be in the side of electrode reed 802, at present Unit socket mounted to a wall is mostly this class formation.In one embodiment, perforate is needed on seat board 805, such as institute in Fig. 7 The plug electrode via 803 shown, and in the second embodiment, two electrode reeds 802 and its seat board 805 typically comprise one The U-shaped structure to fall down, therefore, seat board 805 is not hindered on the direction of plug electrode insertion, is naturally formed electrode mistake Hole.Remember in first embodiment and second embodiment that it is electrode via to be used for the hole that zero wire electrode column passes through below.

It is subject to accordingly, the safety socket further comprises the pressure-bearing body 1 directly acted on for grounding electrode column, installation So as to 1 powered movable contact spring of pressure-bearing body on pressure-bearing body 1, and it is opposite with movable contact spring and in movable contact spring start direction The static contact 5 of upper setting.

On pressure-bearing body 1, it is necessary to using isolation material bearing, since the object applied is the socket of family expenses or is inserted Row, supply voltage belong to lighting voltage, not high to insulating properties requirement, and general electricity plastics can be competent at, especially resinous wood Material, its insulation performance is more preferable, is made for pressure-bearing body 1 of the plastic material identical with housing 4.

The structural requirement of pressure-bearing body 1 is relatively easy, and it is linear motion to essentially consist in realized forms of motion, it can match somebody with somebody Independent guiding structural is put, must can not also be configured, under conditions of being fixedly connected with movable contact spring, if a part of quilt of movable contact spring It is fixedly mounted, its fixed position can determine whether its direction of action, so that the direction of action of pressure-bearing body 1 is also limited.

In certain embodiments, if movable contact spring completely with pressure-bearing body 1 is installing matrix, need to provide for pressure-bearing body 1 It is oriented to.For this kind of guiding, guiding accuracy requirement can use perpendicular baffle to be oriented to, perpendicular baffle here refers to than relatively low Perpendicular to the baffle of bottom plate.

Pressure-bearing body 1 can be monomer structure or assembling structure body, if assembling structure body, then at least require One end opposite with grounding electrode column is isolation material.

On movable contact spring, refer to, with the dynamic and dynamic contact of pressure-bearing body 1, to be fixedly connected with pressure-bearing body 1, can also be simple Be bonded on pressure-bearing body 1.It is understood that movable contact spring is fixedly connected with pressure-bearing body 1, do not represent its cannot again with other portions Part is fixedly connected, and pressure-bearing body 1 is movable member after all, and movable contact spring can be elastomeric element or rigid element, elasticity Then mean it even there are multiple fixed points, still there may be movable part.

In the construction shown in fig. 1, the main reed 6 of movable contact spring is constructed both comprising the part being fixedly connected with housing 4, is also wrapped Include the part being fixedly connected with pressure-bearing body 1.When pressure-bearing body 1 is reliably oriented to by housing 4, movable contact spring can be only solid with pressure-bearing body 1 Fixed connection.

For structure as shown in Figure 1, if the both ends of main reed 6 are fixedly connected with housing 4, pressure-bearing body 1 can be with Do not produce and be fixedly connected between main reed 6, and be merely creating and contradict realized engagement.

No matter which kind of assembly method, the position relationship of movable contact spring and pressure-bearing body 1 is expressed as movable contact spring, and to be located at pressure-bearing body 1 remote From one end of grounding electrode column.

Movable contact spring is connected with one of firewire electrode 9 or fire-wire power line 3, and in Fig. 1, the main reed 6 for building movable contact spring is logical Cross fixing screws 16 and connection electric wire 12 is realized with firewire electrode 9 and is electrically connected.

Firewire power cord 3 is electrically connected by fixing screws 17 and static contact 5 in Fig. 1, and connects electric wire 13 then by solid Determine screw 16 to be fixedly connected with main reed 6, tie point is static connection, it is not easy to because dynamic fatigue damages.

For static contact 5, it is opposite with movable contact spring, should leave dynamic circuit connector gap between the two, by the electricity of realized disjunction Pressure is alternating current, especially electric consumption on lighting, and dynamic circuit connector gap simultaneously need not be too big, generally higher than 2mm, in order to overcome rigging error With the deformation of movable contact spring, dynamic circuit connector clearance control should be slightly larger than dynamic circuit connector gap, with profit in 3 ~ 5mm for the impulse stroke of pressure-bearing body 1 Reliable electrical connection is realized with deformation.Especially, in structure as shown in Figure 1, movable contact spring uses flexible master Reed 6, the impulse stroke of pressure-bearing body 1 can be bigger 1mm than dynamic circuit connector gap.

In Fig. 1, static contact 5 is electrically connected by fixing screws 17 and fire-wire power line 3.

Since the dynamic circuit connector of movable contact spring and static contact 5 is linear motion, and dynamic circuit connector gap can be smaller based on alternating current, because The structure of this application socket or insert row can be relatively compact.

Disjunction between reset for movable contact spring, i.e. movable contact spring and static contact 5, its disjunction direction and its closing direction phase Instead, and as it was previously stated, its disjunction state is normality, therefore the state of firewire that is formed with static contact 5 of movable contact spring is normally opened State.Since movable contact spring belongs to linear motion, in machinery, the reset of parts moving linearly is simplest reset, this The technical staff in field thereby can arbitrarily select the reset of parts moving linearly.

Simultaneously as there is assembling or engagement relationship between movable contact spring and pressure-bearing body 1, therefore, the reset of movable contact spring also can With the reset of pressure-bearing body 1.

Reset for movable contact spring, if part and movable contact spring one for movable contact spring reset, referred to as resetting structure, If it is independent component for the part that movable contact spring resets, in referred to as resetting apparatus.

Wherein, on resetting apparatus, often realized and resetted with spring in machinery field, can be with since dynamic circuit connector gap is smaller The reset of movable contact spring is realized using small-sized cylindrical spring, cylindrical spring is arranged between the bottom plate of movable contact spring and housing 4.

On resetting structure, then movable contact spring and its assembling structure can use the elasticity with elasticity and with conductive capability Body, most common material are exactly brass, and brass is also the main material for making insert row or socket electrode, it possesses stronger Elasticity modulus, therefore can be used for reliably being electrically connected using the embedding folder electrode column of a pair of of latten(-tin), realization.

In certain embodiments, the main reed 6 such as shown in Fig. 1, its material use spring steel substrate, copper coating, To improve conductive capability, meanwhile, steel fall within the good conductor of electricity in itself.The elasticity modulus of spring steel is relative to copper material bigger.

It is autologous electrically conductive using reed structure, and possess certain elasticity, overall structure can be simplified.

It is a kind of structure of main reed 6 shown in Fig. 6, which has three fixing points, respectively there is a fixation in its left and right Hole 601, middle there are a centre bore 605, wherein centre bore 605 to be connected for main reed 6 with pressure-bearing body 1, and mounting hole 601 is then Connected for the erecting bed 13 shown in the both ends of main reed 6 and Fig. 1（Peace of main 6 other end of reed on housing 4 is omitted in figure Assembling structure）.

There are during three point attachment, the deformation of main reed 6 is similar to the film of membrane switch, when pressure-bearing body 1 pushes, main reed 6 middle parts are recessed.

Main reed 6 can also use overhanging structure, its main reed 6 adds institute in figure equivalent to the Half-edge Structure shown in Fig. 6 The seat slot 604 shown or the part for being similarly used for accepting pressure-bearing body 1, are generally similar to a shift fork, remain able to meet It is required that.

Main reed 6 is equivalent to the composite construction of foregoing movable contact spring and resetting structure, and main reed 6 is relative to two components Structure is said closely, so as to the structure of the whole socket of simplification or insert row.

Installation for movable contact spring, as it was previously stated, it can also be only installed on pressure-bearing body 1, and is not present between housing 4 Connection relation, needs to be oriented to pressure-bearing body 1 at this time.The part connected between note movable contact spring and pressure-bearing body 1 is the first mounting portion, The part that note movable contact spring is directly or indirectly connected with housing 4 is the second mounting portion.

For main reed 6, its seat slot 604 with centre bore 605 is the first foregoing mounting portion, and with fixation The fixed plate 602 in hole 601 is then the second mounting portion.

Understood based on described above, in the embodiment shown in fig. 6, be divided into two parts, one equivalent to main reed 6 It is the part for being fixedly connected with pressure-bearing body 1, movable contact spring, seat as shown in Figure 6 should be configured to partially away from the side of pressure-bearing body 1 The bottom wall of groove 604.

The another part of main reed 6 is then the part of main reed 6 such as Fig. 6 left and right ends, i.e., foregoing has mounting hole 601 fixed plate 602, is installed for main reed 6 on housing 4.

On the assembly method of main reed 6, the so-called Half-edge Structure of foregoing main reed 6 is matched in certain embodiments Plus center section, seat slot 604 as shown in Figure 6, at this time, one end of main reed 6, i.e., non-604 place end of seat slot, samples single-ended It is fixed, it is relatively simple similar to foregoing shift fork, structure.

In certain embodiments, as shown in fig. 6, it is a bilateral symmetry on the whole, and elastic part is into arc Shape, similar to existing frequently-used bow, 604 part of seat slot is similar to the part hocked the arrow, and assembling structure is relatively reliable, it is not easy to Failure.

In addition, it should be noted that as shown in fig. 6, the height of arch determined by reed body 603 is more preferably greater than foregoing Dynamic circuit connector gap, once 603 overtravel of reed body, since two mounting holes 601 are fixed, then occurs that reed body 603 produces instead Qu Gong, and can not reset.Based on context-aware, since requiring main reed 6 to automatically reset, then it represents that reed body 603 produces Raw overtravel.If additional resetting structure, then reed body 603 can be with overtravel, and for example there is auxiliary spring piece as shown in Figure 5 2, then reed body 603 can be with overtravel.

It is a kind of main 6 structure of reed for being adapted to the second structure, it is used to install with pressure-bearing body 1 in the structure shown in Fig. 6 Mounting portion be a seat slot 604 for carrying centre bore 605, on the one hand the notch of seat slot 605 is carried towards pressure-bearing body 1, this kind of structure Increase the constraint to pressure-bearing body 1 for seat slot 605, make its assembling structure between main reed 6 relatively reliable.On the other hand, band The main reed 6 for having seat slot 604 is similar to reflex bow structure, can reduce length of the main reed 6 in plug direction of insertion, structure It is relatively compact.

Correspondingly, pressure-bearing body 1 then includes the mounting base 102 of embedded seat slot 604, since seat slot 604 is a kind of rectangular channel, phase Ying Di, mounting base 102 are rectangle seats, after both coordinate, it is only necessary to provide trip bolt 18 as shown in Figure 2, so that it may so that All frees degree of assembling structure are restrained, and assembly reliability is higher.

To be adapted to the assembling of foregoing trip bolt 18, which has the blind hole 103 for being pointed to centre bore 605, Purpose using blind hole 103 is, avoids trip bolt 18（Usually conductive material, such as iron nail）Presence influence overall knot The compact designed of structure.

The trip bolt 18 is fixedly connected from bottom plate side through centre bore 605 with blind hole 103, so as to fulfill mounting base 102 are fixedly connected with seat slot 604.

As it was previously stated, in order to provide relatively reliable reset, it is secondary to be additionally provided with one in main side of the reed 6 away from pressure-bearing body 1 Reed 2, the presence of auxiliary spring piece 2 is additionally operable to the reliability of increase electrical connection, mainly by improving the component being typically electrically connected Between area, improve the reliability of electrical connection.

For the structure of auxiliary spring piece 2 as shown in Figure 5, the structure of main reed 6 is also used as, it only has a connection Point, i.e., the mounting surface 203 with installation via 204 as shown in Figure 5, it is necessary to configure independence for main reed 6 in this class formation Resetting apparatus.

Auxiliary spring piece 2 as shown in Figure 5 includes：

Mounting surface 203, assembling is bonded for auxiliary spring piece 2 with main reed 6, in the structure shown in Fig. 1 and 2, auxiliary spring piece 2 with Being fixedly connected using trip bolt 18 between main reed 6, can also use chemically combined mode real in certain embodiments Now connect, i.e. the lower surface of the seat slot 604 of mounting surface 203 and main reed 6 in figure 6 is bonded, and fitting realizes chemistry knot using glue Close.

In Fig. 5, there is provided the part of mounting surface 203 is the portions of auxiliary spring piece 2, and self installation face is played the part outwards to overhang and provided Reed body, is also easy to produce elasticity, and based on elastic reset and increase composition surface area.

The center of circle of pars convoluta 202 shown in Fig. 5 side where bottom plate, when auxiliary spring piece 2 is run downwards, is subject to static contact 5 Extruding is deformed, and the recovery of the deformation can provide the reset force that main reed 6 resets, and deform can also increase pars convoluta 202 with Contact surface area between static contact 5.

Pars convoluta 202 is if complete arc, then friction of its end to static contact 5 is relatively violent, in order to improve song Portion 202 and the contact conditions of static contact 5, are equipped with contrary flexure portion 201, the presence in contrary flexure portion 201 makes auxiliary spring piece in the end of pars convoluta 202 Contact between 2 and static contact 5 becomes more blunt, will not scratch static contact 5.

In structure shown in Fig. 5, auxiliary spring piece 2 is bilateral symmetry, and the middle part of the bilateral symmetry is equipped with the peace Dress face 203, a pars convoluta 202 is respectively provided with the right and left of mounting surface 203.

The center of circle of two pars convolutas 202 is identical, so that auxiliary spring piece 2 is on the whole as a reflex bow structure, overall structure are tight Gather, elasticity is relatively strong.

Connect referring to shown in attached Fig. 1 and 2, main reed 6, auxiliary spring piece 2 and pressure-bearing body 1 are fixed by same fastener each other Connect, as illustrated in the drawing trip bolt 18, assembling structure is relatively simple.

On housing 4, compared to traditional safety socket, it possesses a partition plate 7, is mainly used for three electricity on partition plate 7 The installation of pole, the device that foregoing main reed 6 etc. realizes 9 control structure of firewire electrode is then used in the cavity volume that partition plate 7 is formed Installation.

In Fig. 1 as it can be seen that being provided with partition plate via on partition plate 7, for connecting passing through for electric wire 12 in figure.

Correspondingly, partition plate is also required to out the partition plate via passed through for grounding electrode column.

Claims (10)

1. A kind of 1. safety socket, for three-pin plug of the grounding electrode column than remaining two electrode column length, it is characterised in that the safety Socket includes grounding electrode, zero wire electrode and firewire electrode, wherein, grounding electrode be pointed to grounding electrode column position be provided with it is slotting Tip electrode via；The safety socket further includes：

   Pressure-bearing body, is grounding electrode column start, at least towards grounding electrode column positioned at the front end in grounding electrode column start direction Side be isolation material；

   Movable contact spring, it is fixed or be bonded on the one end of pressure-bearing body away from grounding electrode column, and with firewire electrode or fire-wire power line it One connection；

   Static contact, it is opposite with movable contact spring and leave dynamic circuit connector gap, and with firewire electrode or another connection of fire-wire power line；And

   Resetting structure or device, the reset for movable contact spring.
2. 2. safety socket according to claim 1, it is characterised in that movable contact spring and resetting structure are integrated into a main reed, The main reed includes：

   Mounting portion, for being fixedly connected with pressure-bearing body, and side of the mounting portion away from pressure-bearing body is configured to movable contact spring；

   Fixed plate, the structural portion installed for main reed on safety socket housing.
3. 3. safety socket according to claim 2, it is characterised in that main reed has：

   First structure：Fix for one end, the reed that the other end overhangs, wherein there is the fixed plate for fixed one end, hang The one end stretched has the mounting portion；

   Second structure：For symmetrical arcuate structure, the both ends of arcuate structure are respectively furnished with a fixed plate, and centre is equipped with a peace Dress portion.
4. 4. safety socket according to claim 3, it is characterised in that in the second structure, mounting portion carries centre bore for one Seat slot, the notch of seat slot is towards pressure-bearing body；

   Correspondingly, pressure-bearing body then includes the mounting base of embedded seat slot, which has the blind hole for being pointed to centre bore；

   A trip bolt is provided, for being used for being fixedly connected for mounting base and seat slot by centre bore and blind hole.
5. 5. according to any safety socket of claim 2 ~ 4, it is characterised in that in side of the main reed away from pressure-bearing body also Equipped with an auxiliary spring piece, which includes：

   Mounting surface, assembling is bonded for auxiliary spring piece with main reed；

   Pars convoluta, self installation face, which is risen, to overhang.
6. 6. safety socket according to claim 5, it is characterised in that be equipped with contrary flexure portion in the end of pars convoluta.
7. 7. safety socket according to claim 6, it is characterised in that auxiliary spring piece is bilateral symmetry, this is symmetrical The middle part of structure is equipped with the mounting surface, and a pars convoluta is respectively provided with the right and left of mounting surface；

   The center of circle of two pars convolutas is identical.
8. 8. safety socket according to claim 5, it is characterised in that main reed, auxiliary spring piece and pressure-bearing body pass through each other Same fastener is fixedly connected.
9. 9. according to any safety socket of claim 2 ~ 4, it is characterised in that be equipped with the housing of safety socket one every Plate, grounding electrode are installed in partition plate one side, and main reed is then located at the opposite side of partition plate；

   Correspondingly, partition plate is provided with the partition plate via passed through for grounding electrode column.
10. 10. safety socket according to claim 9, it is characterised in that a cavity volume is formed between the bottom case of partition plate and housing, it is main Reed is located in cavity volume；

    Wherein, formed with the erecting bed for protruding from bottom case on bottom case, which is used to install main reed.