CN207315043U - Coded lock - Google Patents

Abstract

The utility model proposes a kind of coded lock, including housing, latch bolt component and square tongue component, the restraint assembly that the square tongue stretches out movement can be constrained, it can link with the latch bolt synchronous piece to release transmission component of the restraint assembly to the square tongue synchronous piece kinematic constraint, and the Power Component of power can be provided the movement of the square tongue synchronous piece, the restraint assembly is supported on the housing, the restraint assembly is crimped with the square tongue synchronous piece, to constrain the movement of the square tongue synchronous piece, one end of the transmission component is connected with the latch bolt synchronous piece, the other end of the transmission component and the restraint assembly, the movement of the latch bolt synchronous piece is transferred to the restraint assembly, one end of the Power Component is connected with the square tongue synchronous piece, the other end of the Power Component is fixedly connected with the housing.The utility model stability and service life are high and simple in structure and of low cost.

Description

Coded lock

Technical field

The utility model belongs to door lock technical field, more particularly to a kind of coded lock.

Background technology

Coded lock is one kind of door lock, it possesses the security performance of height by intelligent and automation.Coded lock Lock tongue generally includes latch bolt and square tongue, and wherein latch bolt is easy to the quick crowbar of door body, and the effect of square tongue and latch bolt link with It is quick after door body closes to stretch out, and then door body is further pinned.

Existing coded lock realizes the mode that links between square tongue and latch bolt to be automatically controlled, specifically：At closing time, latch bolt because by To pressure to lock body internal contraction, then when latch bolt is contracted to extreme position, electric-controlled switch is triggered, then electric-controlled switch Control unit is sent a signal to, then control unit control motor driving square tongue is extend out to outside lock body.

But existing password lock realize between square tongue and latch bolt link during, use automatically controlled mode can exist with Lower defect：First, since circuit signal is easily influenced be subject to external environment condition (such as humidity, drying, high temperature, low temperature, magnetic field), Therefore circuit signal transmission can be caused unstable, and then cause coded lock security performance unstable, while after long-time service, It is low that failure, the i.e. service lifes such as short circuit or open circuit easily occurs；Second, due to needing to set control unit, motor, controlling switch And the circuit components such as circuit, therefore cause the complicated and with high costs of coded lock.

The content of the invention

The utility model is for existing password lock stability and the low and complicated and with high costs skill of service life Art problem, proposes that a kind of stability and service life are high, and coded lock simple in structure and of low cost.

In order to achieve the above object, the technical solution adopted in the utility model is：

A kind of coded lock, including housing, latch bolt component and square tongue component, the latch bolt component include what can be moved along a straight line Latch bolt, the latch bolt synchronous piece that can be moved with the latch bolt along Linear Synchronous, one end of the latch bolt are located at the chamber of the housing Inside is simultaneously fixedly connected with the latch bolt synchronous piece, and the other end of the latch bolt extend out to the exterior thereto of the housing, described Square tongue component is located at the chamber interior of the housing, and the square tongue component includes the side outside the housing cavity Tongue, and the square tongue synchronous piece that can be synchronized with the movement with the square tongue, the square tongue are fixedly connected with the square tongue synchronous piece；This reality With the new restraint assembly for further including and can constraining the square tongue and stretching out movement, can link with the latch bolt synchronous piece described to release Restraint assembly is to the transmission component of the square tongue synchronous piece kinematic constraint, and the movement of the square tongue synchronous piece can be provided dynamic The Power Component of power, the restraint assembly are supported on the housing, and the restraint assembly is crimped with the square tongue synchronous piece, with The movement of the square tongue synchronous piece is constrained, one end of the transmission component is connected with the latch bolt synchronous piece, the transmission component The other end and the restraint assembly, the movement of the latch bolt synchronous piece is transferred to the restraint assembly, the power packages One end of part is connected with the square tongue synchronous piece, and the other end of the Power Component is fixedly connected with the housing.

Preferably, the transmission component includes rotatable first shift fork, and first shift fork can be promoted to rotate Impeller, first shift fork is rotatably connected with the housing, and first shift fork is contacted with the impeller, with institute State impeller linkage, first shift fork includes the first pivoted arm, and first pivoted arm is contacted with the restraint assembly, with it is described Restraint assembly links, and the impeller is fixedly connected with the latch bolt synchronous piece.

Preferably, first shift fork further includes the second pivoted arm, one end of second pivoted arm and first pivoted arm It is fixedly connected, the other end of second pivoted arm is contacted with the impeller, to link with the impeller.

Preferably, the impeller includes fulcrum bearing and push rod, the fulcrum bearing is fixed with the latch bolt synchronous piece to be connected Connecing, the push rod is set along the direction of motion of the latch bolt synchronous piece, and one end of the push rod is fixedly connected with the fulcrum bearing, The other end of the push rod is contacted with first shift fork, to link with first shift fork.

Preferably, the restraint assembly includes rotatable second shift fork, and second shift fork can be constrained and rotated The first elastic component, second shift fork is rotatably connected with the housing, and second shift fork is contacted with the transmission component, To link with the transmission component, second shift fork includes the 3rd pivoted arm, the 3rd pivoted arm and the square tongue synchronous piece pressure Connect, to constrain the movement of the square tongue synchronous piece, one end of first elastic component is fixedly connected with the housing, and described first The other end of elastic component is fixedly connected with second shift fork.

Preferably, second shift fork further includes the 4th pivoted arm, one end and the 3rd pivoted arm of the 4th pivoted arm It is fixedly connected, the other end of the 4th pivoted arm is fixedly connected with first elastic component, the 4th pivoted arm and the transmission Component touch, to link with the transmission component.

Preferably, the square tongue synchronous piece offers V-type groove corresponding to the 3rd pivoted arm, the 3rd pivoted arm leans on The end of the nearly square tongue synchronous piece is located in the V-type groove, the end face of the 3rd pivoted arm and the groove face of the V-type groove Crimping.

Preferably, the Power Component includes rotatable 3rd shift fork, and the 3rd shift fork can be driven to rotate The second elastic component, the 3rd shift fork is rotatably connected with the housing, and the 3rd shift fork includes the 5th pivoted arm, described Five pivoted arms are connected with the square tongue synchronous piece, with the square tongue synchronous piece link, one end of second elastic component with it is described Housing is fixedly connected, and the other end of second elastic component is fixedly connected with the 3rd shift fork.

Preferably, the 5th pivoted arm offers long through-hole close to the end of the square tongue synchronous piece, the square tongue is same Step part is provided with the driven member that can be slided along the long through-hole, and one end of the driven member is socketed in the long through-hole, driven The other end of part is connected with the square tongue synchronous piece, to be synchronized with the movement with the square tongue synchronous piece.

Preferably, the Power Component further includes the 6th pivoted arm, one end and the 5th pivoted arm of the 6th pivoted arm It is fixedly connected, the other end of the 6th pivoted arm is fixedly connected with second elastic component.

Compared with prior art, it is the advantages of the utility model with good effect：

The utility model coded lock is being worked as by setting the restraint assembly, the transmission component and the Power Component Realize during linking between the square tongue and the latch bolt, it is automatically controlled that existing password lock is instead of in a manner of mechanically operated On the one hand mode, the influence for being subject to external environment condition (such as humidity, drying, high temperature, low temperature, magnetic field) is significantly reduced with this, from And the linkage process between the square tongue and the latch bolt is more stablized, on the other hand opened without control unit, motor, control The intervention of the complicated power supply component such as pass and circuit, while used mechanical structure is simple, so as to significantly reduce structure Complexity；Therefore the utility model coded lock can improve job stability and service life, while simple in structure and cost It is cheap.

Brief description of the drawings

Fig. 1 is overall structure diagram of the utility model embodiment before square tongue stretches out housing cavity；

Fig. 2 is the partial enlargement structural representation of part A in Fig. 1；

Fig. 3 is structure diagram of the utility model embodiment after latch bolt component and square tongue component is hidden；

Fig. 4 is overall structure diagram of the utility model embodiment after square tongue stretches out housing cavity；

Above in each figure：1st, housing；2nd, latch bolt component；2-1, latch bolt；2-2, latch bolt synchronous piece；3rd, square tongue component；3-1、 Square tongue；3-2, square tongue synchronous piece；4th, restraint assembly；4-1, the second shift fork；4-1-1, the 3rd pivoted arm；4-1-2, the 4th pivoted arm；4- 1-3, the second axle sleeve；4-2, the first elastic component；5th, transmission component；5-1, the first shift fork；5-1-1, the first pivoted arm；5-1-2, second Pivoted arm；5-1-3, the first axle sleeve；5-2, impeller；5-2-1, fulcrum bearing；5-2-2, push rod；6th, Power Component；6-1, the 3rd group Fork；6-1-1, the 5th pivoted arm；6-1-2, the 6th pivoted arm；6-2, the second elastic component；7th, the first long through-hole；8th, V-type groove；9th, it is driven Part；10th, the 3rd elastic component；11st, lead；12nd, the second long through-hole；13rd, the first fixing axle；14th, the second fixing axle；15th, the 3rd Fixing axle.

Embodiment

In the following, the utility model is specifically described by exemplary embodiment.It should be appreciated, however, that do not having In the case of being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated into other implementations In mode.

, it is necessary to which explanation, described in the utility model vertical for perpendicular to the side of Fig. 1 in the description of the utility model To transverse direction described in the utility model is the horizontal direction shown in Fig. 1, and longitudinal direction described in the utility model is perpendicular shown in Fig. 1 Nogata is to while the orientation or position relationship of the instruction such as term " interior ", " outer ", " on ", " under ", "front", "rear", "left", "right" For the position relationship shown in based on attached drawing 1, it is for only for ease of description the utility model and simplifies description, rather than instruction or dark Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right The limitation of the utility model.In addition, term " first ", " second ", " the 3rd ", " the 4th ", " the 5th " are only used for description purpose, and It is not intended that instruction or hint relative importance.

Referring to Fig. 1 to Fig. 4, a kind of coded lock, including housing 1, latch bolt component 2 and square tongue component 3, the latch bolt component 2 Including the latch bolt 2-1 that can be moved along a straight line, the latch bolt synchronous piece 2-2 that can be moved with the latch bolt 2-1 along Linear Synchronous, it is described tiltedly One end of tongue 2-1 is located at the chamber interior of the housing 1 and is fixedly connected with the latch bolt synchronous piece 2-2, the latch bolt 2-1's The other end extend out to the exterior thereto of the housing 1, and the square tongue component 3 is located at the chamber interior of the housing 1, the square tongue Component 3 includes the square tongue 3-1 of 1 exterior thereto of housing, and the square tongue that can be synchronized with the movement with the square tongue 3-1 Synchronous piece 3-2, the square tongue 3-1 are fixedly connected with the square tongue synchronous piece 3-2；

Further, the utility model coded lock, which further includes, can constrain the restraint assembly 4 that the square tongue 3-1 stretches out movement, can Link with the latch bolt synchronous piece 2-2 to release transmission group of the restraint assembly 4 to the square tongue synchronous piece 3-2 kinematic constraints Part 5, and the Power Component 6 of power can be provided the movement of the square tongue synchronous piece 3-2, the restraint assembly 4 is supported in institute To state on housing 1, the restraint assembly 4 is crimped with the square tongue synchronous piece 3-2, to constrain the movement of the square tongue synchronous piece 3-2, And when the restraint assembly 4 moves, the restraint assembly 4 can release the constraint to the square tongue synchronous piece 3-2；Institute The one end for stating transmission component 5 is connected with the latch bolt synchronous piece 2-2, the other end and the restraint assembly of the transmission component 5 4, the linear motion of the latch bolt synchronous piece 2-2 is transferred to the restraint assembly 4；One end of the Power Component 6 and institute The 3-2 connections of square tongue synchronous piece are stated, the other end of the Power Component 6 is fixedly connected with the housing 1, and the Power Component 6 exists During the restraint assembly 4 constrains the square tongue synchronous piece 3-2 movements, the square tongue synchronous piece 3-2 is applied all the time Power, after the constraint to the square tongue synchronous piece 3-2 is released when the restraint assembly 4, to make the square tongue synchronous piece 3-2 rapid The square tongue 3-1 is driven to do stretching movement.

Based on above-mentioned, the utility model coded lock is by setting the restraint assembly 4, the transmission component 5 and described dynamic Power component 6, when realize between the square tongue 3-1 and the latch bolt link during, instead of in a manner of mechanically operated Existing password locks automatically controlled mode, on the one hand significantly reduced with this be subject to external environment condition (as humidity, drying, high temperature, low temperature, Magnetic field etc.) influence so that linkage process between the square tongue 3-1 and the latch bolt is more stablized, on the other hand need not The intervention of the power supply component of the complexity such as control unit, motor, controlling switch and circuit, while the letter of used mechanical structure It is single, so as to significantly reduce the complexity of structure；Therefore the utility model coded lock can improve job stability and using the longevity Life, at the same it is simple in structure and of low cost.

As a kind of embodiment of the utility model, as shown in Figures 1 to 4, the latch bolt component 2 and the square tongue group Part 3 is set along longitudinal direction (vertical direction i.e. shown in Fig. 1), the latch bolt component 2 and the square tongue component 3 transversely (i.e. Fig. 1 Shown horizontal direction) it is spaced apart, the latch bolt component 2 is located at the left of the square tongue component 3, the latch bolt synchronous piece 2- 2 be preferably synchronous round bar, and the front that the latch bolt 2-1 is located at the latch bolt synchronous piece 2-2 (sets the square tongue 3-1 and stretches out movement Direction be front, the direction of motion that the square tongue 3-1 or described latch bolts 2-1 stretches into housing cavity is rear), the latch bolt is same The 3rd elastic component 10 is arranged with outside step part 2-2, the 3rd elastic component 10 is preferably spring (or rubber sleeve), the 3rd elasticity One end of part 10 is fixedly connected with the latch bolt 2-1, and the other end of the 3rd elastic component 10 is fixedly connected with the housing 1, To realize straight reciprocating motion of the latch bolt 1 along longitudinal direction；The square tongue synchronous piece 3-2 is preferably synchronous plate, and the square tongue is same The plate face of step part 3-2 is vertical with vertical (and perpendicular to direction of Fig. 1), and the square tongue 3-1 is located at the square tongue synchronous piece 3-2's Front, the front end of the housing 1 correspond to the square tongue 3-1 and offer guide through hole along longitudinal direction, fixed in 1 chamber of housing Lead 11 is provided with, the lead 11 is vertically set, and the square tongue 3-1 is socketed in the guide through hole of the housing 1, To move along a straight line along the guide through hole, the second length is offered corresponding to the lead 11 on the square tongue synchronous piece 3-2 Through hole 12, second long through-hole 12 extend longitudinally, and the end sleeve of the lead 11 is arranged in second long through-hole 12, So that the square tongue synchronous piece 3-2 moves along a straight line, by setting the lead 11, and the guide through hole and described The presence of two long through-holes 12, can make the square tongue component 3 keep the linear motion along longitudinal direction, while keep during the motion Higher stability.

As shown in Figures 1 to 4, the restraint assembly 4 and the transmission component 5 be arranged at the latch bolt component 2 with it is described Between square tongue component 3, the latch bolt 2-1 is stretched into the indoor movement of 1 chamber of housing and is transferred to the square tongue synchronous piece 3- 2, then drive the square tongue 3-1 to do the linkage for stretching out the housing 1, concretely：

The transmission component 5 includes rotatable first shift fork 5-1, and can promote what the first shift fork 5-1 was rotated Impeller 5-2, the impeller 5-2 includes fulcrum bearing 5-2-1 and push rod 5-2-2, the fulcrum bearing 5-2-1 are located at the latch bolt The sides of synchronous piece 2-2 vertically, the fulcrum bearing 5-2-1 are fixedly connected with the latch bolt synchronous piece 2-2, with realize with it is described Latch bolt synchronous piece 2-2's is synchronized with the movement, and the push rod 5-2-2 is longitudinally disposed, one end and the supporting of the push rod 5-2-2 Seat 5-2-1 be fixedly connected, the other end of the push rod 5-2-2 is contacted with the first shift fork 5-1, with the first shift fork 5- 1 linkage, the first shift fork 5-1 are located at the right of the impeller 5-2, and the first shift fork 5-1 includes the first axle sleeve 5-1- 3, the first pivoted arm 5-1-1 and the second pivoted arm 5-1-2, are fixedly installed the first fixing axle 13, first axle sleeve on the housing 1 5-1-3 is socketed on the outside of first fixing axle 13, is turned with realizing between the first shift fork 5-1 and the housing 1 Dynamic connection, one end of the first pivoted arm 5-1-1 are fixedly connected with the first axle sleeve 5-1-3, the first pivoted arm 5-1-1's The other end is anterior with the rear end in contact of the push rod 5-2-2, with when in the latch bolt 2-1 stretch into 1 chamber of housing When portion moves, the linkage with the push rod 5-2-2 is realized；

Based on above-mentioned, the utility model coded lock is by setting the first shift fork 5-1, the impeller 5-2, Neng Goushi It is now rotary motion by the transform linear motion of the latch bolt synchronous piece 2-2, and then by described in the transmission change of rotary motion The direction of motion of restraint assembly 4, and then the restraint assembly 4 is contacted along specified direction to the square tongue synchronous piece 3- The movement of 2 constraints, more and then ensure that in the square tongue 4-1 and mechanically operated high efficiency in the latch bolt 4-2 linkage process And reliability；

Further, the restraint assembly 4 is between the transmission component 5 and the square tongue component 3, the set of constraints Part 4 includes rotatable second shift fork 4-1, and the first elastic component 4-2 that can constrain that the second shift fork 4-1 rotates, described Second shift fork 4-1 includes the second axle sleeve 4-1-3, the 3rd pivoted arm 4-1-1 and the 4th pivoted arm 4-1-2, is fixedly installed on the housing 1 There is the second fixing axle 14, the second axle sleeve 4-1-3 is socketed on the outside of second fixing axle 14, to realize described second group Being rotatably connected between fork 4-1 and the housing 1, the 3rd pivoted arm 4-1-1 is crimped with the square tongue synchronous piece 3-2, with The movement of the square tongue synchronous piece 3-2 is constrained, wherein, the left side of the square tongue synchronous piece 3-2 corresponds to the 3rd pivoted arm 4- 1-1 offers V-type groove 8, and the V-type groove 8 is vertically extending, and a groove face of the V-type groove 8 is located at described 3rd turn The front of arm 4-1-1, the end face of the 3rd pivoted arm 4-1-1 described in another groove face face of the V-type groove 8, described 3rd turn The end of arm 4-1-1 is located in the V-type groove 8, the end face of the 3rd pivoted arm 4-1-1 and the groove face pressure of the V-type groove 8 Connect, 8 one side of V-type groove can constrain the rotation of the 3rd pivoted arm 4-1-1, on the other hand easy to the 3rd pivoted arm 4-1-1 produces the V-type groove 8, to depart from the square tongue synchronous piece 3-2, and then releases the pact to the square tongue synchronous piece 3-2 Beam, the 4th pivoted arm 4-1-2 are located at the front of the 3rd pivoted arm 4-1-1, one end of the 4th pivoted arm 4-1-2 with it is described Second axle sleeve 4-1-3 is fixedly connected, and the other end of the 4th pivoted arm 4-1-2 is contacted with the 3rd pivoted arm 4-1-1, to realize With the linkage of the 3rd pivoted arm 4-1-1, the first elastic component 4-2 is preferably extension spring (can also be torque spring), One end of the first elastic component 4-2 is fixedly connected with the housing 1, the other end of the first elastic component 4-2 and described the Two shift fork 4-1 are fixedly connected.

Based on above-mentioned, the utility model coded lock by setting the second shift fork 4-1 and the first elastic component 4-2, On the one hand when being contacted with the square tongue synchronous piece 3-2, the operative constraint to the square tongue synchronous piece 3-2 can be ensured, it is another Aspect in rotary manner can release the kinematic constraint of the square tongue synchronous piece 3-2, so as to improve to described oblique The response efficiency of tongue synchronous piece 2-2 movements, and then improve the linkage efficiency of the square tongue 3-2 and latch bolt 3-1 movements.

Further as shown in Figures 1 to 4, the Power Component 6 is located at the right of the square tongue synchronous piece 3-2, described dynamic The structure of power component 6 is concretely：

The Power Component 6 includes rotatable 3rd shift fork 6-1, and can drive what the 3rd shift fork 6-1 was rotated Second elastic component 6-2, the 3rd shift fork 6-1 include the 5th pivoted arm 6-1-1 and the 6th pivoted arm 6-1-2, fixed on the housing 1 The 3rd fixing axle 15 is provided with, the 3rd fixing axle 15 is vertically set, and the 5th pivoted arm 6-1-1 corresponds to the described 3rd Fixing axle 15 offers rotated through-hole, and the 5th pivoted arm 6-1-1 is socketed on the 3rd fixing axle 15 by rotated through-hole Outside, to realize being rotatably connected between the 3rd shift fork 6-1 and the housing 1, as shown in figure 3, the 5th pivoted arm 6-1-1 offers the first long through-hole 7 close to the end of the square tongue synchronous piece 3-2, and the square tongue synchronous piece 3-2 is provided with can edge The driven member 9 that first long through-hole 7 slides, the driven member 9 are preferably driven column, and the driven member 9 is vertically set, institute State and synchronous through hole is vertically offered on square tongue synchronous piece 3-2, one end of the driven member 9 is tightly sleeved in square tongue synchronization Inside the synchronous through hole of part 3-2, it is synchronized with the movement with realizing with the square tongue synchronous piece 3-2, and realization is same in the square tongue The rotation inside the synchronous through hole of part 3-2 is walked, the other end of the driven member 9 is socketed in first long through-hole 7, to realize Straight reciprocating motion is done along first long through-hole 7；

The 6th pivoted arm 6-1-2 is located at the right of the 5th pivoted arm 6-1-1, one end of the 6th pivoted arm 6-1-2 Connection integrated with the 5th pivoted arm 6-1-1, the other end of the 6th pivoted arm 6-1-2 are consolidated with the second elastic component 6-2 Fixed connection, the second elastic component 6-2 is preferably extension spring (can also be torque spring), the second elastic component 6-2's One end is fixedly connected with the housing 1, and the other end of the second elastic component 6-2 is fixedly connected with the 6th pivoted arm 6-1-2.

Based on above-mentioned the utility model coded lock by setting the 3rd shift fork 6-1 and the second elastic component 6-2, energy Enough keep exerting a force to the square tongue synchronous piece 3-2 using elastic force, so that when the latch bolt component 2 acts, the square tongue Synchronous piece 3-2 reacts rapidly and drives the square tongue 3-1 to stretch out the exterior thereto of the housing 1, and then significantly improves described The linkage efficiency of square tongue 3-2 and latch bolt 3-1 movements.

In order to be better understood from the technical solution of the utility model, as shown in Figures 1 to 4, the utility model coded lock is real The existing square tongue 3-2 and the operation principle that the latch bolt 3-1 links are as follows：

When at closing time, the latch bolt 2-1 is pressurized and rearward moves along a straight line, at the same drive the latch bolt synchronous piece 2-2 to Rear is synchronized with the movement, and the movement of the latch bolt synchronous piece 2-2 drives the impeller 5-2 to be synchronized with the movement, then the push rod 5- 2-2 promotes the second pivoted arm 5-1-2 to rotate, to drive the first shift fork 5-1 to rotate in the counterclockwise direction, then described the One pivoted arm 5-1-1 promotes the 4th pivoted arm 4-1-2 to rotate, to drive the second shift fork 4-1 to be rotated along clockwise direction, Then the 3rd pivoted arm 4-1-1 overcomes the resistance between the V-type groove 8 and departs from the square tongue synchronous piece 3-2's Connection, then the square tongue synchronous piece 3-2 is losing the constraint of movement, then under the action of the 3rd shift fork 6-1 elastic forces Drive the square tongue synchronous piece 3-2 to travel forward, and then drive the exterior thereto of the square tongue 3-1 stretchings housing, at this time Door, which has closed, to be finished, and the latch bolt 2-1 and the square tongue 3-1 are in place.

Claims (10)

1. a kind of coded lock, including housing (1), latch bolt component (2) and square tongue component (3), the latch bolt component (2) includes can edge The latch bolt (2-1) of linear motion, the latch bolt synchronous piece (2-2) that can be moved with the latch bolt (2-1) along Linear Synchronous, the latch bolt The one end of (2-1) is located at the chamber interior of the housing (1) and is fixedly connected with the latch bolt synchronous piece (2-2), the latch bolt The other end of (2-1) extend out to the exterior thereto of the housing (1), and the square tongue component (3) is located at the chamber of the housing (1) Inside, the square tongue component (3) include the square tongue (3-1) of the housing (1) exterior thereto, and can be with the side The square tongue synchronous piece (3-2) that tongue (3-1) is synchronized with the movement, the square tongue (3-1) are fixedly connected with the square tongue synchronous piece (3-2), It is characterized in that：

The restraint assembly (4) that the square tongue (3-1) stretches out movement can be constrained by further including, and can be joined with the latch bolt synchronous piece (2-2) Move to release transmission component (5) of the restraint assembly (4) to square tongue synchronous piece (3-2) kinematic constraint, and can be to institute The movement for stating square tongue synchronous piece (3-2) provides the Power Component (6) of power, and the restraint assembly (4) is supported in the housing (1) On, the restraint assembly (4) crimps with the square tongue synchronous piece (3-2), to constrain the movement of the square tongue synchronous piece (3-2), One end of the transmission component (5) is connected with the latch bolt synchronous piece (2-2), the other end of the transmission component (5) with it is described Restraint assembly (4), the restraint assembly (4), the Power Component are transferred to by the movement of the latch bolt synchronous piece (2-2) (6) one end is connected with the square tongue synchronous piece (3-2), the other end and the fixed company of the housing (1) of the Power Component (6) Connect.

2. coded lock according to claim 1, it is characterised in that：The transmission component (5) includes rotatable first group Pitch (5-1), and the impeller (5-2) that first shift fork (5-1) can be promoted to rotate, first shift fork (5-1) with it is described Housing (1) is rotatably connected, and first shift fork (5-1) contacts with the impeller (5-2), with the impeller (5-2) Linkage, first shift fork (5-1) include the first pivoted arm (5-1-1), first pivoted arm (5-1-1) and the restraint assembly (4) contact, to link with the restraint assembly (4), the impeller (5-2) is fixedly connected with the latch bolt synchronous piece (2-2).

3. coded lock according to claim 2, it is characterised in that：First shift fork (5-1) further includes the second pivoted arm (5- 1-2), one end of second pivoted arm (5-1-2) is fixedly connected with first pivoted arm (5-1-1), the second pivoted arm (5-1- 2) the other end is contacted with the impeller (5-2), to link with the impeller (5-2).

4. coded lock according to claim 2, it is characterised in that：The impeller (5-2) include fulcrum bearing (5-2-1) and Push rod (5-2-2), the fulcrum bearing (5-2-1) are fixedly connected with the latch bolt synchronous piece (2-2), push rod (5-2-2) edge The direction of motion of the latch bolt synchronous piece (2-2) is set, and one end of the push rod (5-2-2) and the fulcrum bearing (5-2-1) are solid Fixed connection, the other end of the push rod (5-2-2) are contacted with first shift fork (5-1), to join with first shift fork (5-1) It is dynamic.

5. coded lock according to claim 1, it is characterised in that：The restraint assembly (4) includes rotatable second group Pitch (4-1), and the first elastic component (4-2) that second shift fork (4-1) rotates can be constrained, second shift fork (4-1) with The housing (1) is rotatably connected, and second shift fork (4-1) contacts with the transmission component (5), with the transmission component (5) link, second shift fork (4-1) includes the 3rd pivoted arm (4-1-1), and the 3rd pivoted arm (4-1-1) and the square tongue are same Walk part (3-2) crimping, to constrain the movement of the square tongue synchronous piece (3-2), one end of first elastic component (4-2) with it is described Housing (1) is fixedly connected, and the other end of first elastic component (4-2) is fixedly connected with second shift fork (4-1).

6. coded lock according to claim 5, it is characterised in that：Second shift fork (4-1) further includes the 4th pivoted arm (4- 1-2), one end of the 4th pivoted arm (4-1-2) is fixedly connected with the 3rd pivoted arm (4-1-1), the 4th pivoted arm (4-1- 2) the other end is fixedly connected with first elastic component (4-2), the 4th pivoted arm (4-1-2) and the transmission component (5) Contact, to link with the transmission component (5).

7. coded lock according to claim 5, it is characterised in that：The square tongue synchronous piece (3-2) corresponds to the described 3rd Pivoted arm (4-1-1) offers V-type groove (8), and the 3rd pivoted arm (4-1-1) is close to the end of the square tongue synchronous piece (3-2) In the V-type groove (8), the end face of the 3rd pivoted arm (4-1-1) is crimped with the groove face of the V-type groove (8).

8. according to the coded lock any one of claim 1-7, it is characterised in that：The Power Component (6) includes turning The 3rd dynamic shift fork (6-1), and the second elastic component (6-2) that the 3rd shift fork (6-1) can be driven to rotate, described 3rd group Fork (6-1) is rotatably connected with the housing (1), and the 3rd shift fork (6-1) includes the 5th pivoted arm (6-1-1), and the described 5th Pivoted arm (6-1-1) is connected with the square tongue synchronous piece (3-2), to link with the square tongue synchronous piece (3-2), second elasticity One end of part (6-2) is fixedly connected with the housing (1), the other end and the 3rd shift fork of second elastic component (6-2) (6-1) is fixedly connected.

9. coded lock according to claim 8, it is characterised in that：5th pivoted arm (6-1-1) is same close to the square tongue The end of step part (3-2) offers long through-hole (7), and the square tongue synchronous piece (3-2), which is provided with, to be slided along the long through-hole (7) Driven member (9), one end of the driven member (9) is socketed in the long through-hole (7), the other end of driven member (9) with it is described Square tongue synchronous piece (3-2) connects, to be synchronized with the movement with the square tongue synchronous piece (3-2).

10. coded lock according to claim 8, it is characterised in that：The Power Component (6) further includes the 6th pivoted arm (6- 1-2), one end of the 6th pivoted arm (6-1-2) is fixedly connected with the 5th pivoted arm (6-1-1), the 6th pivoted arm (6-1- 2) the other end is fixedly connected with second elastic component (6-2).