CN209568801U - A kind of access control system with common key and private key - Google Patents

Abstract

The utility model provides a kind of access control system with common key and private key, belongs to field of electromechanical technology.This management system includes theftproof lock, common key and private key, theftproof lock includes lock core, common key includes the plug of bar shape and the lockable mechanism that is arranged in plug, lockable mechanism includes a magnetic coil, lock core includes an insertion tube, plug can be plugged in insertion tube, have in plug power supply and with the concatenated indicator light of power supply, be provided with several rotating cylinders on plug；Under key and lock core matching status, two wiring contacts on each rotating cylinder are connected with two conducting contacts on corresponding control zone, and power supply, indicator light and magnetic coil is made to form a complete electricity reflux；Make any false contact and wiring contact to it is corresponding when magnetic coil in short-circuit or off-state.The utility model has many advantages, such as to reduce management difficulty.

Description

A kind of access control system with common key and private key

Technical field

The utility model belongs to field of electromechanical technology, is related to a kind of entrance guard management system with common key and private key System.

Background technique

Lock is the tool-class product that people's daily life often contacts, and is widely used in all trades and professions, with people's life product Matter is gradually increased, and the lock in family is more and more, and key is also more and more, and key is lost very inconvenient, and key is more also very It is inconvenient, if it is possible to by all locks in a cluster (such as one family, hotel's cluster) by a key come It opens, then the degree of convenience and practicability of life will be greatly improved.

Existing lock is realized by mechanical structure, also has electronic lock, such as Fingerprint Lock, existing mechanical lock passes through lock tongue Make it is stuck between doorframe and door body, thief destroy lock core where door body or the doorframe where lock core can open, pass through piece The card of shape structure is inserted into crack between a door and its frame, so that lock tongue retraction can also be opened, in short, its safety is lower.

There is also defects for the electronic lock of existing Fingerprint Lock class, such as need to connect power supply, and power-off or power-fail etc. are also compared It is cumbersome.

Utility model content

The purpose of this utility model be aiming at the above problems existing in the prior art, provide it is a kind of have common key and The access control system of private key, technical problem to be solved in the utility model be how by setting common key and specially With key, to improve safety and property convenient for management.

The purpose of this utility model can be realized by the following technical scheme: a kind of with common key and private key Access control system, which is characterized in that this management system includes theftproof lock, common key and private key, the theftproof lock packet Include lock core, the common key includes the plug of bar shape and the lockable mechanism that is arranged in plug, and the lockable mechanism includes One magnetic coil, the lock core include an insertion tube, and the plug can be plugged in insertion tube, have in the plug power supply and with Power supply concatenated indicator light is provided with several rotating cylinders on the plug, and there are two wiring to touch for setting on the outer peripheral surface of each rotating cylinder Head has the control zone with the one-to-one annular of each rotating cylinder on the insertion tube inner wall, be provided on each control zone one group it is true Contact and several groups vacation contact, the true contact include two conducting contacts, are electrically connected between two conducting contacts；Described in every group False contact includes two short circuiting contacts；Each conducting contact and each short circuiting contact on the same control zone are circumferentially uniformly distributed；When Equal two on corresponding control zone of two wiring contacts under key and lock core matching status, on each described rotating cylinder A conducting contact is connected, and power supply, indicator light and magnetic coil is made to form a complete electricity reflux；Two on every group of vacation contact are short The both ends of road contact distribution connection magnetic coil；Make any false contact and wiring contact to it is corresponding when magnetic coil in short-circuit or Off-state；

It include introduction part and shank on the plug, each rotating cylinder is between introduction part and shank；The introduction part and handle It is fixedly linked between portion by a stem, each drum rotation is connected on stem；Restricted turn is arranged between each rotating cylinder and stem The positioning component of stop place of the cylinder on stem after rotation；

The private key is identical as common key structure, except that: pass through a stem between introduction part and shank It is fixedly linked, each rotating cylinder is fixedly connected on stem.

The private key of this structure, a key can only open a lock.

Positioning component is that the steel ball being arranged in rotating cylinder inwall and setting corresponding recess, steel ball on stem pass through One pressure spring against.

Since rotating cylinder is rotating member, adjacent rotating cylinder component realization electrically connects as conventional brush structure, due to brush structure For this field conventional means, it will not be described here.

The common key of this structure changes the position for cooperating the wiring contact of true contact, Ke Yili by revolving drum More locks are opened with a key, can be used for family, hotel management person etc. and concentrate in group, as common key is managed for hotel Reason personnel, private key are used for the hotel tenant in single room.

The specific mode of connection in magnetic coil conducting are as follows: following electrical components series connection: power supply, indicator light, Two wiring contacts on inner terminal rotating cylinder, corresponding with the rotating cylinder of inner terminal two conductings contact, magnetic coil, outermost end Two wiring contacts of rotating cylinder, two conductings contact corresponding with the rotating cylinder of outermost end, between inner terminal and outermost end Two wiring contacts, each conducting contact corresponding with each rotating cylinder between inner terminal and outermost end on each rotating cylinder.

Any vacation contact and wiring contact to it is corresponding when magnetic coil be disconnected or power supply is wired contact and touching is connected Head short circuit, makes magnetic coil that can not be powered, so that lock core be made to fail to open.

By the arrangement of conducting terminal contact on contact true on lock core, the arrangement of false contact and plug, key may be implemented The one-to-one correspondence of spoon and lock.

The mode of magnetic coil opening lock master has very much, forms magnetic field after being powered such as magnetic coil, absorption realize doorframe and The tongue of door body locking is detached from jack, realizes and unlocks, and after magnetic coil power-off, tongue is multiple under the action of the spring elements such as spring The locking of doorframe and door body is realized in position.

Both ends of power also has charging connector.

In a kind of above-mentioned access control system with common key and private key, the introduction part and rotating cylinder are equal For external splines structure, the insertion tube inner wall is internal spline structure corresponding with plug.

It is fixed to have in a kind of above-mentioned access control system with common key and private key, in the introduction part Position convex ribs, have the locating slot cooperated with positioning convex tendon on the inner wall of the insertion tube.

In a kind of above-mentioned access control system with common key and private key, the lockable mechanism further includes The active lock construction being arranged in door body and the passive lock construction being arranged on doorframe, the active lock construction includes position-limited rack One, driving gear, active lock tongue and active rotating shaft, the position-limited rack one are fixed in door body, the driving gear and actively lock Tongue is each attached on active rotating shaft, and there are two the active lock tongues, and driving gear is located between two active lock tongues, the master Turn axis is hollow structure, and the insertion tube is rotatably connected in active rotating shaft；

The passive lock construction includes position-limited rack two, driven gear, passive lock tongue and passive rotating shaft, and the position-limited rack two is solid It is scheduled in doorframe, the passive lock tongue is fixed in passive rotating shaft, and there are two the passive lock tongues, and driven gear is located at two There is a transmission gear ring between passive lock tongue, in the passive rotating shaft, there is a ring gear in the driven gear, two passive The planetary gear being freely rotated, each planetary gear while engaged transmission gear ring and ring gear are connected between lock tongue；It is described passive Gear can engage the driving gear, and the active lock tongue and passive lock tongue are in wedge type；And active lock tongue is inserted into position-limited rack In two, when passive lock tongue is inserted into position-limited rack one, active lock tongue and passive lock tongue are symmetrical；The active lock tongue passes through plane Bearing is connected with position-limited rack one, and the passive lock tongue is connected by plane bearing with position-limited rack two.

The lock of this structure, can in a latched condition, and active lock tongue is inserted into the position-limited rack two on doorframe, passive lock tongue It is inserted into the position-limited rack one in door body, individually destroys door body or doorframe, fail to open, substantially increase antitheft effect and sled The difficulty of lock.

By driven gear, planetary gear, the effect for being driven gear ring and ring gear, engage driving gear and driven gear When transmission, active rotating shaft is identical with the direction of rotation of passive rotating shaft, make to open lock when, active lock tongue is passive to lock to lower swing Tongue is swung up, so that active lock tongue and passive lock tongue will not interfere with each other.This structure can also effectively avoid passing through card The modes such as piece open the possibility of lock, and card can not act on the inclined-plane of active lock tongue and passive lock tongue, act on active lock tongue The position of actively lock and passive lock tongue can not be shaken with the pressure on passive lock tongue.

Further, two sides of the teeth on driving gear are respectively provided with a guiding surface one, on driven gear Two sides of teeth are respectively provided with a guiding surface two.

The side of teeth mentioned here refers to side corresponding with the wheel face of driving gear or driven gear, makes driving tooth Wheel and driven gear door body and doorframe close to when engagement it is more smooth.

In a kind of above-mentioned access control system with common key and private key, the inner end of the active rotating shaft It is threaded with a sliding block, the logical magnet ring with an irony on the sliding block, the inner end of the active rotating shaft is fixedly installed one Armature block, the magnetic coil are wound around in the armature block；It is multiple that one is connected between the sliding block and the inner wall of active rotating shaft Position spring.

After magnetic coil is powered, armature block adsorbs logical magnet ring, it is mobile to make sliding block, and active rotating shaft is driven to rotate, to open Qi Suo.

By the design and slider stroke of structure and the cooperation of helicitic texture, make sliding block in two extreme positions, actively Lock tongue is located at lockup state and discrete state.

In a kind of above-mentioned access control system with common key and private key, it is rotatablely connected on the sliding block There is a knob, the knob stretches out except inner side of door face, and a pull ring, the drawing are further fixedly arranged on the inner side of door face Hand is located on the inside of pull ring.

When door does not close door, knob is pulled, and press pull ring, it is mobile to make sliding block, and drives active lock tongue and passive lock Tongue is stepped down, and so that active lock tongue is first stepped down, is just closed up door body to doorframe thereafter.

In a kind of above-mentioned access control system with common key and private key, the passive rotating shaft and limit A reduction torsion spring is connected between frame two, the reduction torsion spring drives passive lock tongue to be located in the case where driven gear is not by external force Position far from position-limited rack one.

By the design of structural parameters, the passive lock tongue under reduction torsion spring independent role is made to be located at two top of position-limited rack, by The presence of planetary transmission structure between driven gear and passive rotating shaft, it is main even if driving gear is identical with driven gear specification The corner of dynamic lock tongue and passive lock tongue can not be consistent, and need to cooperate by the position of active lock tongue after unlocking, i.e., Under two extreme positions of active lock tongue, the rotation of driving gear just makes passive lock tongue be located at lockup state and is detached from limit The state of the limitation of frame one, the description of this section are intended merely to explain the feasibility of this programme, and cover this programme with above-mentioned The other parameters of function design or the scheme of equivalent structure design.

Detailed description of the invention

Fig. 1 is the circuit diagram of electronic lock.

Sectional view when Fig. 2 is lock core and plug cooperation unlock.

Fig. 3 is the schematic perspective view of common key.

Fig. 4 is the schematic perspective view of private key.

Fig. 5 is the sectional view that door body is under lockup state with doorframe.

Fig. 6 is the structural schematic diagram of active lock tongue and passive lock tongue.

Fig. 7 is the sectional view in Fig. 5 on the direction A-A.

In figure, 11, insertion tube；12, true contact；121, contact is connected；13, false contact；131, short circuiting contact；2, plug；21, Power supply；22, indicator light；23, rotating cylinder；24, wiring contact；25, introduction part；26, shank；27, positioning convex tendon；28, stem；31, Magnetic coil；32, position-limited rack one；33, driving gear；34, active lock tongue；35, active rotating shaft；41, position-limited rack two；42, passive Gear；43, passive lock tongue；44, passive rotating shaft；45, it is driven gear ring；46, ring gear；47, planetary gear；51, lead to magnet ring；52, Armature block；53, reset spring；54, it shakes hands；55, pull ring；56, sliding block.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, this management system includes theftproof lock, common key and private key, theftproof lock Including lock core, common key includes the plug 2 of bar shape and the lockable mechanism being arranged in plug 2, and lockable mechanism includes a magnetic Line of force circle 31, lock core include an insertion tube 11, and plug 2 can be plugged in insertion tube 11, have in plug 2 power supply 21 and with power supply 21 Concatenated indicator light 22 is provided with several rotating cylinders 23 on plug 2, and there are two wiring contacts for setting on the outer peripheral surface of each rotating cylinder 23 24, there is on 11 inner wall of insertion tube the control zone with the one-to-one annular of each rotating cylinder 23, be provided on each control zone one group it is true Contact 12 and several groups vacation contact 13, true contact 12 include two conducting contacts 121, are electrically connected between two conducting contacts 121； Every group of vacation contact 13 includes two short circuiting contacts 131；Each conducting contact 121 and each short circuiting contact 131 on the same control zone Circumferentially it is uniformly distributed；Under key and lock core matching status, two wiring contacts 24 on each rotating cylinder 23 are and right therewith Two conducting contacts 121 on the control zone answered are connected, and power supply 21, indicator light 22 and magnetic coil 31 is made to form a complete electricity Reflux；The both ends of two short circuiting contacts 131 distribution connection magnetic coil 31 on every group of vacation contact 13；Make any false contact 13 with 24 pairs of wiring contact it is corresponding when magnetic coil 31 be in short circuit or off-state；

It include introduction part 25 and shank 26 on plug 2, each rotating cylinder 23 is between introduction part 25 and shank 26；Introduction part 25 It is fixedly linked between shank 26 by a stem 28, each rotating cylinder 23 is rotatably connected on stem 28；Each rotating cylinder 23 and stem 28 Between the positioning component of the stop place after restricted rotating cylinder 23 rotates on stem 28 is set；

Private key is identical as common key structure, except that: pass through a stem between introduction part 25 and shank 26 28 are fixedly linked, and each rotating cylinder 23 is fixedly connected on stem 28.

The private key of this structure, a key can only open a lock.

Positioning component is the steel ball being arranged on 23 inner wall of rotating cylinder and setting corresponding recess, steel ball on stem 28 By a pressure spring against.

Since rotating cylinder 23 is rotating member, adjacent 23 component of rotating cylinder realization electrically connects as conventional brush structure, due to brush Structure is this field conventional means, and it will not be described here.

The common key of this structure changes the position for cooperating the wiring contact 24 of true contact 12 by revolving drum 23, It can use a key and open more locks, can be used for family, hotel management person etc. and concentrate in group, as common key is used for Hotel management personnel, private key are used for the hotel tenant in single room.

The specific mode of connection when magnetic coil 31 is connected are as follows: following electrical components series connection: power supply 21, instruction Two wiring contacts 24, corresponding with the rotating cylinder 23 of inner terminal two conductings contact 121, magnetic on lamp 22, inner terminal rotating cylinder 23 Line of force circle 31, two wiring contacts 24 of the rotating cylinder 23 of outermost end, two conductings contact corresponding with the rotating cylinder 23 of outermost end 121, two wiring contacts 24 on each rotating cylinder 23 between inner terminal and outermost end, be located at inner terminal and outermost end it Between the corresponding each conducting contact 121 of each rotating cylinder 23.

Magnetic coil 31 is disconnected or power supply 21 is wired contact when any vacation contact 13 is corresponding with 24 pairs of wiring contact 24 is short-circuit with conducting contact 121, makes magnetic coil 31 that can not be powered, so that lock core be made to fail to open.

It, can by the arrangement of conducting terminal contact 24 on contact 12 true on lock core, the arrangement of false contact 13 and plug 2 To realize the one-to-one correspondence of key and lock.

The mode of 31 opening lock master of magnetic coil has very much, and magnetic field is formed after being powered such as magnetic coil 31, and door is realized in absorption The tongue of frame and door body locking is detached from jack, realizes and unlocks, after the power-off of magnetic coil 31, work of the tongue in spring elements such as springs With lower reset, the locking of doorframe and door body is realized.

21 both ends of power supply also have charging connector.

Introduction part 25 and rotating cylinder 23 are external splines structure, and 11 inner wall of insertion tube is internal spline structure corresponding with plug 2.It leads Entering has positioning convex tendon 27 in portion 25, have the locating slot cooperated with positioning convex tendon 27 on the inner wall of insertion tube 11.

As shown in Fig. 5, Fig. 6 and Fig. 7, lockable mechanism further includes the active lock construction being arranged in door body and is arranged in doorframe On passive lock construction, active lock construction includes position-limited rack 1, driving gear 33, active lock tongue 34 and active rotating shaft 35, limit Position frame 1 is fixed in door body, and driving gear 33 and active lock tongue 34 are each attached on active rotating shaft 35, and active lock tongue 34 has Two, and driving gear 33 is located between two active lock tongues 34, active rotating shaft 35 is hollow structure, and insertion tube 11 is rotatably connected on In active rotating shaft 35；

Passive lock construction includes position-limited rack 2 41, driven gear 42, passive lock tongue 43 and passive rotating shaft 44, position-limited rack 2 41 It is fixed in doorframe, passive lock tongue 43 is fixed in passive rotating shaft 44, and there are two passive lock tongues 43, and driven gear 42 is located at two There is a transmission gear ring 45 between a passive lock tongue 43, in passive rotating shaft 44, there is in driven gear 42 ring gear 46, two The planetary gear 47 being freely rotated, each planetary gear 47 while engaged transmission gear ring 45 and internal tooth are connected between passive lock tongue 43 Circle 46；Driven gear 42 can engage driving gear 33, and active lock tongue 34 and passive lock tongue 43 are in wedge type；And active lock tongue 34 In insertion position-limited rack 2 41, when passive lock tongue 43 is inserted into position-limited rack 1, active lock tongue 34 and passive lock tongue 43 are symmetrical； Active lock tongue 34 is connected by plane bearing with position-limited rack 1, and passive lock tongue 43 passes through plane bearing and 2 41 phase of position-limited rack Even.

The lock of this structure, can in a latched condition, and active lock tongue 34 is inserted into the position-limited rack 2 41 on doorframe, passively Lock tongue 43 is inserted into the position-limited rack 1 in door body, is individually destroyed door body or doorframe, is fail to open, substantially increase antitheft The difficulty of effect and picking lock.

By driven gear 42, planetary gear 47, be driven gear ring 45 and ring gear 46 effect, make driving gear 33 and by When the engaged transmission of moving gear 42, active rotating shaft 35 is identical with the direction of rotation of passive rotating shaft 44, make to open lock when, active lock tongue 34 are swung up to lower swing, passive lock tongue 43, so that active lock tongue 34 and passive lock tongue 43 will not interfere with each other.This structure The possibility that the modes such as card open lock can also be effectively avoided passing through, card can not act on active lock tongue 34 and passive lock tongue On 43 inclined-plane, the pressure acted on active lock tongue 34 and passive lock tongue 43 can not shake the position of actively lock and passive lock tongue 43 It sets.

Further, two sides of the teeth on driving gear 33 are respectively provided with a guiding surface one, driven gear 42 On two sides of teeth be respectively provided with a guiding surface two.

The side of teeth mentioned here refers to side corresponding with the wheel face of driving gear 33 or driven gear 42, makes to lead Moving gear 33 and driven gear 42 door body and doorframe close to when engagement it is more smooth.

The inner end of active rotating shaft 35 is threaded with a sliding block 56, the logical magnet ring 51 with an irony on sliding block 56, active The inner end of shaft 35 is fixedly installed an armature block 52, and magnetic coil 31 is wound around in armature block 52；Sliding block 56 and active rotating shaft A reset spring 53 is connected between 35 inner wall.After magnetic coil 31 is powered, armature block 52 adsorbs logical magnet ring 51, makes sliding block 56 It is mobile, and active rotating shaft 35 is driven to rotate, to open lock.

By the design of structure and the cooperation of sliding block 56 stroke and helicitic texture, make sliding block 56 in two extreme positions, Active lock tongue 34 is located at lockup state and discrete state.

A knob 54 is rotatably connected on sliding block 56, knob 54 stretches out except inner side of door face, also solid on inner side of door face Surely it is provided with a pull ring 55, knob 54 is located at 55 inside of pull ring.When door does not close door, knob 54 is pulled, and press pull ring 55, It is mobile to make sliding block 56, and active lock tongue 34 and passive lock tongue 43 is driven to step down, active lock tongue 34 is made first to step down, just make door body thereafter Close up to doorframe.

It is connected with a reduction torsion spring between passive rotating shaft 44 and position-limited rack 2 41, reduction torsion spring drives passive lock tongue 43 in quilt Moving gear 42 is not located remotely from the position of position-limited rack 1 under by external force.By the design of structural parameters, make reduction torsion spring Passive lock tongue 43 under independent role is located at 2 41 top of position-limited rack, since planet passes between driven gear 42 and passive rotating shaft 44 The presence of dynamic structure, even if driving gear 33 is identical with 42 specification of driven gear, the corner of active lock tongue 34 and passive lock tongue 43 It can not be consistent, need to cooperate by the position of active lock tongue 34 after unlocking, i.e. 34 two limit positions of active lock tongue It sets down, the rotation of driving gear 33 just makes passive lock tongue 43 be located at lockup state and is detached from the limitation of position-limited rack 1 State, the description of this section are intended merely to explain the feasibility of this programme, and this programme is made to cover other ginsengs with the above function The scheme of number design or equivalent structure design.

It should be understood that only depicting wherein one group of vacation contact in figure in order to keep attached drawing 1 clear and being connect with logical magnetic coil It is logical, in fact, other each group vacation contacts are connected with logical magnetic coil.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (7)

1. a kind of access control system with common key and private key, which is characterized in that this management system includes antitheft Lock, common key and private key, the theftproof lock include lock core, and the common key includes the plug (2) of bar shape and sets The lockable mechanism in plug (2) is set, the lockable mechanism includes a magnetic coil (31), and the lock core includes an insertion tube (11), the plug (2) can be plugged in insertion tube (11), have power supply (21) in the plug (2) and go here and there with power supply (21) The indicator light (22) of connection is provided with several rotating cylinders (23) on the plug (2), is provided with two on the outer peripheral surface of each rotating cylinder (23) A wiring contact (24) has the control zone with the one-to-one annular of each rotating cylinder (23) on insertion tube (11) inner wall, each One group of true contact (12) and several groups vacation contact (13) are provided on control zone, the true contact (12) includes two conducting contacts (121), it is electrically connected between two conducting contacts (121)；Vacation contact (13) described in every group include two short circuiting contacts (131)；Together Each conducting contact (121) and each short circuiting contact (131) on one control zone are circumferentially uniformly distributed；When key matches shape with lock core Under state, two conductings touching of the two wiring contacts (24) on each described rotating cylinder (23) and on corresponding control zone Head (121) is connected, and power supply (21), indicator light (22) and magnetic coil (31) is made to form a complete electricity reflux；Every group of vacation contact (13) both ends of two short circuiting contacts (131) distribution connection magnetic coil (31) on；Touch any false contact (13) and wiring Head (24) is in short circuit or off-state to magnetic coil (31) when corresponding to；

It include introduction part (25) and shank (26) on the plug (2), each rotating cylinder (23) is located at introduction part (25) and shank (26) Between；It is fixedly linked between the introduction part (25) and shank (26) by a stem (28), each rotating cylinder (23) is rotatably connected on On stem (28)；Stop after restricted rotating cylinder (23) rotates on stem (28) is set between each rotating cylinder (23) and stem (28) The positioning component of position；

The private key is identical as common key structure, except that: pass through one between introduction part (25) and shank (26) Stem (28) is fixedly linked, and each rotating cylinder (23) is fixedly connected on stem (28).

2. a kind of access control system with common key and private key according to claim 1, which is characterized in that institute Stating introduction part (25) and rotating cylinder (23) is external splines structure, and insertion tube (11) inner wall is internal spline corresponding with plug (2) Structure.

3. a kind of access control system with common key and private key according to claim 1 or claim 2, feature exist In there are positioning convex tendon (27) on the introduction part (25), have on the inner wall of the insertion tube (11) and match with positioning convex tendon (27) The locating slot of conjunction.

4. a kind of access control system with common key and private key according to claim 3, which is characterized in that institute State the passive lock construction that lockable mechanism further includes the active lock construction being arranged in door body He is arranged on doorframe, the active lock Structure includes position-limited rack one (32), driving gear (33), active lock tongue (34) and active rotating shaft (35), the position-limited rack one (32) It is fixed in door body, the driving gear (33) and active lock tongue (34) are each attached on active rotating shaft (35), the active lock There are two tongues (34), and driving gear (33) is located between two active lock tongues (34), and the active rotating shaft (35) is hollow knot Structure, the insertion tube (11) are rotatably connected in active rotating shaft (35)；

The passive lock construction includes position-limited rack two (41), driven gear (42), passive lock tongue (43) and passive rotating shaft (44), institute It states position-limited rack two (41) to be fixed in doorframe, the passive lock tongue (43) is fixed on passive rotating shaft (44), the passive lock tongue (43) there are two, and driven gear (42) is located between two passive lock tongues (43), has one to pass on the passive rotating shaft (44) Movable tooth circle (45), the driven gear (42) is interior to have a ring gear (46), is connected with freedom between two passive lock tongues (43) The planetary gear (47) of rotation, each planetary gear (47) while engaged transmission gear ring (45) and ring gear (46)；The passive tooth Wheel (42) can engage the driving gear (33), and the active lock tongue (34) and passive lock tongue (43) are in wedge type；And actively When lock tongue (34) is inserted into position-limited rack two (41), passive lock tongue (43) insertion position-limited rack one (32) is interior, active lock tongue (34) and quilt Dynamic lock tongue (43) are symmetrical；The active lock tongue (34) is connected by plane bearing with position-limited rack one (32), the passive lock Tongue (43) is connected by plane bearing with position-limited rack two (41).

5. a kind of access control system with common key and private key according to claim 4, which is characterized in that institute The inner end for stating active rotating shaft (35) is threaded with a sliding block (56), with the logical magnet ring of an irony on the sliding block (56) (51), the inner end of the active rotating shaft (35) is fixedly installed an armature block (52), and the magnetic coil (31) is wound around described In armature block (52)；A reset spring (53) are connected between the sliding block (56) and the inner wall of active rotating shaft (35).

6. a kind of access control system with common key and private key according to claim 5, which is characterized in that institute It states and is rotatably connected on sliding block (56) knob (54), the knob (54) is stretched out except inner side of door face, the inner side of door It is further fixedly arranged on face a pull ring (55), the knob (54) is located on the inside of pull ring (55).

7. a kind of access control system with common key and private key according to claim 6, which is characterized in that institute It states and is connected with a reduction torsion spring between passive rotating shaft (44) and position-limited rack two (41), the reduction torsion spring drives passive lock tongue (43) The position of position-limited rack one (32) is located remotely from the case where driven gear (42) is not by external force.