CN204835014U - Safety protection socket - Google Patents

Abstract

The utility model discloses a safety protection socket, including socket ontology, still include the protective cover, protective cover swing joint is equipped with the through -hole that a position and slot position on the socket ontology correspond at least on the protective cover on socket ontology, and the socket ontology top is equipped with at least one the protruding round pin of elasticity that can upspring and force down, and the protruding round pin position of elasticity corresponds with through -hole location, is equipped with on the protective cover from canceling release mechanical system, and the protective cover is the mistake mutually of the slot position on through -hole and the socket ontology when the initial point position, and the protruding round pin of elasticity is upspring and is inserted in the through -hole. The utility model discloses the security performance is high, the dependable performance, and less input in research and development, and simple structure easily promotes, and the barrier propterty gradient is abundant, and the user of being convenient for makes the selection between security and easy -to -use nature.

Description

Safety protective socket

Technical field

The utility model relates to a kind of electrical connection, and more particularly, it relates to a kind of safety protective socket.

Background technology

Socket is contemporary work and electric device indispensable in living, and can take electric energy easily and safely by socket in various electricity consumption place for people from utility network.But the most security protection performance of socket common is at present lower, very big potential safety hazard is there is for the children of absolute ignorance in Electrical Safety, insert outlet slots once the hand-held conducting objects of children and just electric shock accidents may occur, and along with the development of society, child has increasing chance to contact new things, its intellectual development constantly accelerates, and seems the things of complicated safety, become now no longer safe before a lot.How carrying out structural improvement to conventional socket, thus develop and not easily outwards transmit electricity in improper electricity consumption situation, and surmount the socket that present child's human-subject test makes child's electric shock accidents probability of happening greatly reduce, is a problem urgently to be resolved hurrily.Also there is much known innovative technology maybe will be applied at present, improve or be expected to improve the safety in utilization of socket.Existing safety socket mainly contains two kinds, and one is cross-over connection loop-type, and another is safe gate-type.Cross-over connection loop-type can provide safer protection, but because of its complex structure, cost is higher, cannot promote on a large scale always.Safe door type structure is simple, but its class of security protection that can provide is limited, is sealed by jack so most of family has the family of child still can buy independent socket protection cover, brings a lot of inconvenience can to like this use at ordinary times.Publication number is the invention of CN1812209A discloses a kind of socket safety return circuit device on August 2nd, 2006, it includes a housing, this housing is provided with power supply slot, this power supply slot has the two hole slots that charger plug inserts, this housing is equipped with power line, the loop of On current is provided with between this power supply slot and this power line, this loop includes a cross-over connection loop and some touch-control loops, this cross-over connection loop is located between this two jack base, this cross-over connection loop has two inputs and two transmission ends, this input and transmission ends are located at the both sides of respectively this jack base relatively, this two jack base does not form conducting loop between the adjacent input of homonymy and transmission ends, this touch-control loop is located between this two jack base and this cross-over connection loop, and touch-control is arranged in this two input, two transmission ends.Above-mentioned safety socket really has the function preventing improper electric shock, but also has following deficiency:

1. poor structure.This loop comprises 4 touch-control loops, has 4 pairs of contacts, and contact more in loop increases the complexity of system, reduce its reliability, and in long-term use procedure, contact meeting oxidation deterioration, its contact resistance can increase, and then increases the caloric value in whole loop, makes socket premature breakdown.In order to alleviate more multifinger adverse effect, during manufacture, often silver-plated on contact or the silver-colored rivet contacts of direct use is to improve resistant to rust and arc resistant ability, and this will obviously increase the cost of product undoubtedly.

2. the easy initiation potential in cross-over connection loop.Longer loop can increase the overall caloric value of socket, and this will reduce the fail safe of socket.In addition socket is after Long-Time Service, and unavoidable dust impurity enters, and dust very easily makes the short circuit of cross-over connection loop, causes dangerous generation.This problem is particularly outstanding in the occasion such as workshop, building site that dust is more.

3. the generation of electrocution conditions still can be caused when inserting with the foreign matter of the pin comparable dimensions of standard plug with two simultaneously.

Utility model content

Existing most socket secure barrier propterty is not enough, the hidden danger of getting an electric shock under there is improper electricity consumption situation, and expensive, and for overcoming these defects, the utility model provides one and has reasonable safeguard structure, safe and reliable and lower-cost safety protective socket.

The technical solution of the utility model is: safety protective socket; comprise jack body; also comprise protective cover; protective cover is movably connected on jack body; protective cover is at least provided with the position through hole corresponding with the slot position on jack body; jack body top is provided with at least one elasticity protruding pin that can upspring and depress; elasticity protruding pin position is corresponding with lead to the hole site; protective cover is provided with Self-resetting mechanism; slot position when protective cover is in origin position on through hole and jack body is staggered, and elasticity protruding pin is upspring and inserted in through hole.In its natural state, protective cover can get back to origin position voluntarily by the driving of Self-resetting mechanism, now, elasticity protruding pin is upspring and is inserted in through hole, block protective cover, when protective cover rests on origin position, protective cover has sealed the slot of jack body, from slot power taking, compression elasticity protruding pin under the pin of plug, elasticity protruding pin shifts out rear defence protecting cover completely and could rotate from through hole, the through hole of protective cover just can be made to aim at slot position thus guarantee that the pin of plug can insert slot, therefore safety protection socket has good protective, add the necessary condition of socket circuit conducting, needing to make multiple coherent action during use could turning circuit.

As preferably, protective cover edge is provided with breach, jack body is also provided with the protective cover locking mechanism that protective cover can be made to keep origin position.In its natural state, protective cover can get back to origin position voluntarily by the driving of Self-resetting mechanism, protective cover can be locked on origin position again by protective cover locking mechanism, now, elasticity protruding pin is upspring and is inserted in through hole, block protective cover, when protective cover rests on origin position, protective cover has sealed the slot of jack body, to from slot power taking, protective cover locking mechanism must be operated, remove the locking to protective cover, meanwhile, compression elasticity protruding pin under the pin of plug, elasticity protruding pin shifts out rear defence protecting cover completely and could rotate from through hole, the through hole of protective cover just can be made to aim at slot position thus guarantee that the pin of plug can insert slot, therefore safety protection socket has multiple tracks safeguard procedures, and each measure is all linked with one another, the protection of each road must be removed one by one and could activate protective cover, putting the shielding of just removable protective cover before this from power taking socket, only remove wherein arbitrary road protection to be not enough to guarantee normally to use socket.Owing to possessing above-mentioned tight safeguard structure reliably, safety protection socket eliminates the hidden danger of accidental shock, if child plays with safety protection socket, only unlock at protective cover locking mechanism, protective cover adjusts to normal use location, conducting objects is passed the through hole on protective cover and is inserted the slot of socket, simultaneously child contact these four conditions of conducting objects full up sufficient when just can there is electric shock accidents, and should follow procedures in the process realizing these four conditions, need again both hands synchronous coordination, and for cognitive ability and physical all very weak child, complete possibility that is so complicated and the behave that purpose is very strong very little.

As preferably, described protective cover locking mechanism comprises slip pin rod, chute and stage clip, and chute is located in the top casing of jack body, and slip pin rod slides and is arranged in chute, stage clip is located between the tail end of slip pin rod and chute end wall, slip pin rod width and gap width adaptation.When slip pin rod, protective cover move to a specific location point along displacement path separately, inlay card can be formed coordinate, the movable function of shielding protection lid, when the cooperation of slip pin rod, protective cover being arranged on the initial point that protective cover is in opportunity, just can being formed and lock the initial point state of protective cover.Because slip pin rod pressurized spring drives, protective cover locking mechanism also has auto-reset function, therefore manual operation must could remove the locking of protective cover locking mechanism to protective cover, thus improve the safety in utilization of this socket.

As an alternative, described locking mechanism comprises a password lock pin, and password lock pin is provided with Crypto Control Unit and telescopic pin, and telescopic pin width and gap width adaptation, the axis of breach is parallel with the sliding path of telescopic pin.Locking mechanism is by unlock password, and the people therefore not obtaining password authorization cannot remove the locking to protective cover locking mechanism, also just cannot discharge protective cover.This programme improves the turn-on condition of safety socket, and fail safe is higher, when being applied on the keeping a public place clean of public arena, construction socket, significantly can strengthen facilities management, prevents from stealing with abuse.

As preferably, described protective cover locking mechanism also comprises secondary locking mechanism, sliding pin club body is provided with the locking bayonet socket that can coordinate with secondary locking mechanism, described secondary locking mechanism comprises locking pin rod, locking pin rod chute and locking pin rod stage clip, the top casing that jack body is located at by locking pin rod chute intersects vertically with chute, locking pin rod slides and is arranged in locking pin rod chute, locking pin rod stage clip is located between the tail end of locking pin rod and locking pin rod detent ends wall, locking pin rod width and locking bayonet socket width adaptation, the axis of locking bayonet socket is parallel with the sliding path of locking pin rod, slip pin rod and locking pin rod are equipped with and dial handle above jack body top shell.Secondary locking mechanism is used for locking protective cover locking mechanism, namely adds one security protection again to protective cover locking mechanism, strengthens the unblock difficulty of protective cover locking mechanism, thus improves the coefficient of safety of this socket further.The movement of slip pin rod can be stoped when locking pin rod embeds locking bayonet socket under locking pin rod stage clip promotes, sliding pin bar is made to be locked at lock-out state to protective cover, thus keep the masked state of protective cover, releasing is pushed handle aside to the resilience force hand that the stop of slip pin rod must overcome locking pin rod stage clip and keeps, just can remove slip pin rod on this basis, remove the locking to protective cover, and then depress plug again and rotate, remove the shielding of protective cover.The fail safe that secondary locking mechanism can further improve safety socket is set, according to convention, synchronous coordination pushes locking pin rod and slip pin rod aside, then slip pin rod is kept, changing hand goes by plug, and this series of actions needs bimanualness, and performs according to step, be difficult to accomplish for child, so the possibility that child's electric shock accidents occurs is very little.

As preferably, protective cover is provided with rotating shaft, rotating shaft runs through jack body top shell and is rotationally connected with jack body top shell, the axis of breach, the sliding path of slip pin rod are all positioned in the radial direction of protective cover, described Self-resetting mechanism comprises a reduction torsion spring, reduction torsion spring one end is connected in protective cover bottom surface, and the other end is connected on jack body, and reduction torsion spring is socketed in rotating shaft.Can realize protective cover being rotationally connected and Self-resetting function on jack body by this kind of structure, this structure is simple, compact, is easy to realize.

As an alternative, jack body is provided with the protective cover chute of band blind end, protective cover both sides are installed with the pin that is slidably connected, protective cover is slidably connected in protective cover chute by the pin that is slidably connected with coordinating of chute, described Self-resetting mechanism comprises a reseting pressuring spring, reseting pressuring spring one end is connected to and is slidably connected on pin, and the other end is connected to the blind end of protective cover chute.Protective cover being slidably connected and Self-resetting function on jack body can be realized by this kind of structure.

As preferably, jack body top is provided with the protruding pin hole that can hold elasticity protruding pin and pass, jack body inside is provided with adaptive with elasticity protruding pin and corresponding with protruding pin hole site protruding pin mounting pipe, the sliding plug of elasticity protruding pin is in protruding pin mounting pipe, also be provided with protruding pin stage clip in protruding pin mounting pipe, protruding pin stage clip is at the bottom of protruding pin mounting pipe pipe and between elasticity protruding pin.By this kind of vibrational power flow, elasticity protruding pin can make straight line lifting carriage along protruding pin mounting pipe, and protruding pin stage clip makes elasticity protruding pin remain reset trend, therefore, in normal electricity consumption situation, this socket uses easily, but not electric shock possibility under normal circumstances reduces greatly.

As preferably, the rotary body of elasticity protruding pin to be shaft section be " convex " font, aperture, protruding pin hole is less than described protruding pin mounting pipe caliber.The elasticity protruding pin of this kind of shape has a limes superiors when sliding, and can not deviate from protruding pin hole during up-slip.

The beneficial effects of the utility model are:

Security performance is high.For the utility model, child only has conducting objects is inserted protective cover through hole and the pressure kept down, meanwhile also must rotate the position that protective cover aligns to protective cover through hole with the power supply slot of jack body, conducting objects could be inserted among power supply slot, because elasticity protruding pin is hidden in protective cover through hole, child finds this locking device to be difficult matter, say nothing of and also want size to be just the conducting objects can inserting protective cover through hole, the direction of adding direction and the rotation protective cover inserting conducting objects is orthogonal, seldom can coordinate coherent for the action of two different directions for the child getting used to doing dull action.And for being equipped with the socket of protective cover locking mechanism, rotate protective cover also need unlock while above-mentioned action, the child not understanding this socket operation principle completes the cooperation that multiple like this action is also carried out linking up simultaneously, and possibility is extremely small.

Dependable performance, Innovation Input is less.The utility model just increases some external agencies on the shell of the socket of traditional form, the internal structure of conventional socket can't be changed, namely existing manufacturer does not need the internal structure again groping again to go for many years to design a kind of better renewal, but still can continue to use the internal structure of its original maturation, so not only make the performance of socket be ensured, and greatly can reduce the input of manufacturer in research and development.

Structure is simple, is easy to promote.The utility model only needs several springs and working of plastics just can realize very high security performance, and so limited parts increase can not bring the significantly increase of cost and price, is conducive to the all-round popularization of safety socket.

Barrier propterty gradient is enriched, and is convenient to user and makes a choice between fail safe and ease of use.The utility model provides multiple possible electrical shock protection safety structure alternatively, if use protective cover locking mechanism, secondary locking mechanism, socket is safer but user needs how one or more action just can make plug power taking; If do not use protective cover locking mechanism, secondary locking mechanism, the fail safe of socket decreases, but improves the convenience of user's use.

Accompanying drawing explanation

Fig. 1 is a kind of STRUCTURE DECOMPOSITION schematic diagram of the present utility model;

Fig. 2 is a kind of structural representation of protective cover locking mechanism in the utility model;

Fig. 3 is schematic diagram when protective cover is in firm released state in the utility model;

Fig. 4 is that in the utility model, protective cover is in view when removing slot function of shielding;

Fig. 5 is the protective cover of another kind of structure of the present utility model view when being in initial point;

Fig. 6 is another kind of view when protective cover is in initial point in the utility model;

Fig. 7 is the another kind of structural representation of protective cover locking mechanism in the utility model;

A kind of structural representation when Fig. 8 is the utility model employing slidingtype protective cover;

Fig. 9 is the utility model working state schematic representation in the unlocked state when adopting slip protective cover;

Figure 10 is that the utility model is along a kind of structural representation after protective cover chute vertical profile;

Figure 11 is a kind of cross-sectional configuration schematic diagram of the present utility model;

In the locked state along a kind of structural representation after protective cover through hole vertical profile when Figure 12 is the utility model employing slip protective cover.

In figure, 1-jack body, 2-protective cover, 3-through hole, 4-elasticity protruding pin, 5-rotating shaft, 6-reduction torsion spring, 7-breach, 8-slip pin rod, 9-chute, 10-stage clip, 11-locking bayonet socket, 12-locking pin rod, 13-locking pin rod chute, 14-locking pin rod stage clip, 15-password lock pin, 16-dials handle, 17-protruding pin hole, 18-protruding pin stage clip, 19-stopper slot, 20-spacer pin, 21-protruding pin mounting pipe, 22-protective cover chute, 23-is slidably connected pin, 24-reseting pressuring spring.

Embodiment

Below in conjunction with accompanying drawing specific embodiment, the utility model is described in further detail.

Embodiment 1:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 6, a kind of holes safety protective socket, comprise jack body 1, also comprise the protective cover 2 of the circle that plastics are made, protective cover 2 is provided with rotating shaft 5 one-body moldedly, rotating shaft 5 bottom is provided with the dop that diameter expands a little and the breach established along shaft section, breach passes through dop, jack body 1 top shell is provided with and the shaft hole of rotating shaft 5 adaptation and two stopper slots 19, the bottom shell of jack body 1 inside is also provided with shaft hole, can pass from the shaft hole of jack body 1 top and bottom after dop closes up along breach, dop under nature is expanded voluntarily, diameter is slightly larger than shaft hole aperture thus be stuck in outside shaft hole.Rotating shaft 5 runs through the shaft hole of jack body 1 top shell and is rotationally connected with jack body 1 top shell, and make protective cover 2 be rotatably connected on jack body 1, rotating shaft 5 is positioned at the mid point of two slot lines of jack body 1.Article two, stopper slot 19 is oppositely arranged, every bar stopper slot 19, all in quadrant arc, is provided with two spacer pins, 20, two spacer pins 20 and inserts in two stopper slots 19 respectively bottom protective cover 2, by coordinating of spacer pin 20 and two stopper slots 19, the angle rotatable of protective cover 2 is limited in 90 °.Protective cover 2 is provided with two through holes 3, identical with the slot number on jack body 1, and through hole 3 position is corresponding with the slot position on jack body 1, and two through holes 3 are about rotating shaft 5 Central Symmetry.Jack body 1 top is provided with two protruding pin holes 17, the elasticity protruding pin 4 that can upspring and depress respectively is equipped with in two protruding pin holes 17, jack body 1 inside is provided with adaptive with elasticity protruding pin 4 and corresponding with position, protruding pin hole 17 protruding pin mounting pipe 21, elasticity protruding pin 4 sliding plug is in protruding pin mounting pipe 21, also be provided with protruding pin stage clip 18 in protruding pin mounting pipe, protruding pin stage clip 18 is at the bottom of protruding pin mounting pipe pipe and between elasticity protruding pin 4.Elasticity protruding pin 4 is the rotary body of shaft section in " convex " font, and aperture, protruding pin hole 17 is less than described protruding pin mounting pipe caliber.Elasticity protruding pin 4 position is corresponding with through hole 3 position, protective cover 2 is provided with Self-resetting mechanism, described Self-resetting mechanism comprises a reduction torsion spring 6, it is inner that reduction torsion spring 6 is positioned at jack body 1, reduction torsion spring 6 one end is plugged in a hole of protective cover 2 bottom surface, the other end is plugged in a hole of jack body 1 bottom shell, reduction torsion spring 6 is socketed in rotating shaft 5, under the effect of this Self-resetting mechanism, all the time there is the trend resting on initial point in protective cover 2, when protective cover 2 is in origin position, through hole 3 is staggered with the slot position on jack body 1, the line of two through hole 3 is vertical with the line of two slots, and elasticity protruding pin 4 is upspring and is inserted in through hole 3, jack body 1 is also provided with the protective cover locking mechanism that protective cover can be made to keep origin position, protective cover 2 edge is provided with a breach 7, described protective cover locking mechanism comprises slip pin rod 8, chute 9 and stage clip 10, chute 9 is located in the top casing of jack body 1, slip pin rod 8 slides and is arranged in chute 9, stage clip 10 is located between the tail end of slip pin rod 8 and chute 9 end wall, slip pin rod 8 width and breach 7 width adaptation, the axis of breach 7, the sliding path of slip pin rod 8 is all positioned in the radial direction of protective cover 2.Described protective cover locking mechanism also comprises secondary locking mechanism, slip pin rod 8 shaft is provided with the locking bayonet socket 11 that can coordinate with secondary locking mechanism, described secondary locking mechanism comprises locking pin rod 12, locking pin rod chute 13 and locking pin rod stage clip 14, the top casing that jack body 1 is located at by locking pin rod chute 13 intersects vertically with chute 9, and locking pin rod chute 13 and chute 9 form T-shaped.Locking pin rod 12 slides and is arranged in locking pin rod chute 13, locking pin rod stage clip 14 is located between the tail end of locking pin rod 12 and locking pin rod chute 13 end wall, locking pin rod 12 width and locking bayonet socket 11 width adaptation, the axis of locking bayonet socket 11 is parallel with the sliding path of locking pin rod 12, slip pin rod 8 and locking pin rod 12 is equipped with dial handle 16 above jack body 1 top shell.

On this socket during no-pin plug, under the effect of locking pin rod stage clip 14, stage clip 10, protruding pin stage clip 18 and reduction torsion spring 6, locking pin rod 12, slip pin rod 8, elasticity protruding pin 4 and protective cover 2 get back to respective initial point respectively, through hole 3 now on protective cover 2 staggers with jack body 1 slot position, therefore protective cover 2 shelters from jack body 1 slot, simultaneously, slip pin rod 8 is inserted in breach 7, locking pin rod 12 is inserted in locking bayonet socket 11, elasticity protruding pin 4 is inserted in through hole 3, form multiple chain protection, the probability of the electric shock accidents that meets accident is extremely low, during normal electricity consumption, first with group handle 16 moved with the hand on the other hand on locking pin rod 12, overcome the elastic force of locking pin rod stage clip 14, locking pin rod 12 is shifted out from locking bayonet socket 11, then locking pin rod 12 not resilience is maintained, slip pin rod 8 is moved with the hand with another hand, the elastic force overcoming stage clip 10 makes slip pin rod 8 shift out from breach 7 and maintains slip pin rod 8 not resilience, now protective cover 2 is relieved lock-out state, the hand controlling locking pin rod 12 is let go, then take plug to insert through hole 3, slight pressure, make plug base pin by compression elasticity protruding pin 4, meanwhile slightly attempt rotation and see whether protective cover 2 can rotate, if cannot rotate, the dynamics pressing down plug strengthens a little, all shift out after through hole 3 until elasticity protruding pin 4, protective cover 2 just can rotate, after protective cover 2 half-twist, afterburning pressing plug again, plug base pin just can insert power taking in the slot of socket.

Embodiment 2:

As shown in Figure 7, described locking mechanism comprises a password lock pin 15, and password lock pin 15 is provided with Crypto Control Unit and telescopic pin, and telescopic pin width and breach 7 width adaptation, the axis of breach 7 is parallel with the sliding path of telescopic pin.All the other are with embodiment 1.Ejecting telescopic pin when this plug does not use is stuck in breach 7, locking slip pin rod 8, and then locking protective cover 2.As needed electricity consumption, must input licencing key, telescopic pin can be retracted, and then protective cover locking mechanism, protective cover 2 unlock, and so just can insert plug power taking.All the other are with embodiment 1.

Embodiment 3:

As shown in Figure 5, arcuately, through hole 3, protruding pin hole 17 and elasticity protruding pin 4 are one to protective cover 2, when protective cover 2 is positioned at initial point, hot slot, the neutral slot of jack body 1 are all covered in by protective cover 2, and the overlapping and elasticity protruding pin 4 of through hole 3, protruding pin hole 17 holes is upspring and inserted in through hole 3; Protective cover 2 rotate 90 ° to extreme position time, through hole 3 is overlapping with the hot slot of jack body 1, then opens wide above the neutral slot of now jack body 1, does not block by protective cover 2.All the other are with embodiment 1.

Embodiment 4:

As Fig. 8, Fig. 9, Figure 10, Figure 11, shown in Figure 12, safety protection socket is Three-hole socket, through hole 3, protruding pin hole 17 and elasticity protruding pin 4 are one, the top shell of jack body 1 is provided with the protective cover chute 22 of band blind end, the top shell of the through jack body 1 of protective cover chute 22 through-thickness, the cross section of protective cover chute 22 is step-like, protective cover 2 both sides are installed with the pin 23 that is slidably connected, pin 23 bottom that is slidably connected is provided with Wedge shaped elastic buckle, Wedge shaped elastic buckle wedging protective cover chute 22 bottom land narrow orifice the inner surface of top shell lower than jack body 1, under natural resiliency effect, Wedge shaped elastic buckle blocks protective cover chute 22 bottom land narrow orifice edge, make the unlikely dislocation of protective cover 2.Pin 23 bottom that is slidably connected slightly is gone up place and is integrally formed with a projection, by being also provided with the stage clip holding tank of indent outside the pin 23 that is slidably connected on protective cover 2 bottom surface, stage clip holding tank and protective cover chute 22 are butted into a cavity, described projection can be adaptive chimeric with this cavity, protective cover 2 is slidably connected in protective cover chute 22 by the pin 23 that is slidably connected with coordinating of chute, described Self-resetting mechanism comprises a reseting pressuring spring 24, reseting pressuring spring 24 is placed on the terrace in protective cover chute 22 and is also in described cavity adaptedly, reseting pressuring spring 24 one end is connected to and is slidably connected on the projection of pin 23, the other end is connected to the blind end of protective cover chute 22.All the other are with embodiment 1.

Using method similar embodiment 1 in the present embodiment, difference is only, plug base pin pressure elasticity protruding pin 4, straight line passes protective cover 2 again, when passing extreme position, plug just and plug base pin position alignment, now just can be inserted slot by the slot on jack body 1.

Embodiment 5:

Safety protection socket is Three-hole socket, and accordingly, the through hole 3 on protective cover 2, elasticity protruding pin 4 are also respectively three, and rotating shaft 5 is positioned on the triangle excenter of jack body 1 three slots or three through hole 3 formations.All the other are with embodiment 1.

Claims (9)

1. safety protective socket, comprise jack body (1), it is characterized in that also comprising protective cover (2), protective cover (2) is movably connected on jack body (1), protective cover (2) is at least provided with the through hole (3) that a position is corresponding with the slot position on jack body (1), jack body (1) top is provided with at least one elasticity protruding pin (4) that can upspring and depress, elasticity protruding pin (4) position is corresponding with through hole (3) position, protective cover (2) is provided with Self-resetting mechanism, when protective cover (2) is in origin position, through hole (3) is staggered with the slot position on jack body (1), and elasticity protruding pin (4) is upspring and is inserted in through hole (3).

2. safety protective socket according to claim 1, is characterized in that protective cover (2) edge is provided with breach (7), jack body (1) is also provided with the protective cover locking mechanism that protective cover can be made to keep origin position.

3. safety protective socket according to claim 2; it is characterized in that described protective cover locking mechanism comprises slip pin rod (8), chute (9) and stage clip (10); chute (9) is located in the top casing of jack body (1); slip pin rod (8) slides and is arranged in chute (9); stage clip (10) is located between the tail end of slip pin rod (8) and chute (9) end wall, slip pin rod (8) width and breach (7) width adaptation.

4. safety protective socket according to claim 2; it is characterized in that described locking mechanism comprises a password lock pin (15); password lock pin (15) is provided with Crypto Control Unit and telescopic pin; telescopic pin width and breach (7) width adaptation, the axis of breach (7) is parallel with the sliding path of telescopic pin.

5. safety protective socket according to claim 3, it is characterized in that described protective cover locking mechanism also comprises secondary locking mechanism, slip pin rod (8) shaft is provided with the locking bayonet socket (11) that can coordinate with secondary locking mechanism, described secondary locking mechanism comprises locking pin rod (12), locking pin rod chute (13) and locking pin rod stage clip (14), the top casing that jack body (1) is located at by locking pin rod chute (13) intersects vertically with chute (9), locking pin rod (12) slides and is arranged in locking pin rod chute (13), locking pin rod stage clip (14) is located between the tail end of locking pin rod (12) and locking pin rod chute (13) end wall, locking pin rod (12) width and locking bayonet socket (11) width adaptation, the axis of locking bayonet socket (11) is parallel with the sliding path of locking pin rod (12), slip pin rod (8) and locking pin rod (12) are equipped with and dial handle (16) above jack body (1) top shell.

6. safety protective socket according to claim 3; it is characterized in that protective cover (2) is provided with rotating shaft (5); rotating shaft (5) runs through jack body (1) top shell and is rotationally connected with jack body (1) top shell; the axis of breach (7), the sliding path of slip pin rod (8) are all positioned in the radial direction of protective cover (2); described Self-resetting mechanism comprises a reduction torsion spring (6); reduction torsion spring (6) one end is connected in protective cover (2) bottom surface; the other end is connected on jack body (1), and reduction torsion spring (6) is socketed in rotating shaft (5).

7. safety protective socket according to claim 1; it is characterized in that jack body (1) is provided with the protective cover chute (22) of band blind end; protective cover (2) both sides are installed with the pin that is slidably connected (23); protective cover (2) is slidably connected in protective cover chute (22) by the pin that is slidably connected (23) with coordinating of chute; described Self-resetting mechanism comprises a reseting pressuring spring (24); reseting pressuring spring (24) one end is connected on the pin that is slidably connected (23), and the other end is connected to the blind end of protective cover chute (22).

8. safety protective socket according to any one of claim 1 to 7; it is characterized in that jack body (1) top is provided with the protruding pin hole (17) that can hold elasticity protruding pin (4) and pass; jack body (1) inside is provided with adaptive with elasticity protruding pin (4) and corresponding with protruding pin hole (17) position protruding pin mounting pipe; elasticity protruding pin (4) sliding plug is in protruding pin mounting pipe; also be provided with protruding pin stage clip (18) in protruding pin mounting pipe, protruding pin stage clip (18) is positioned at the bottom of protruding pin mounting pipe pipe and between elasticity protruding pin (4).

9. safety protective socket according to claim 8, it is characterized in that elasticity protruding pin (4) is for the rotary body of shaft section in " convex " font, protruding pin hole (17) aperture is less than described protruding pin mounting pipe caliber.