CN211776535U

CN211776535U - Silent lock

Info

Publication number: CN211776535U
Application number: CN201921438555.9U
Authority: CN
Inventors: 王挺
Original assignee: Wonly Security And Protection Technology Co ltd
Current assignee: Wonly Security And Protection Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-10-27
Anticipated expiration: 2029-08-30

Abstract

A silent lock, comprising: the lock column is fixedly arranged on the frame body; the lock bolt assembly comprises a lock bolt which is rotationally arranged on the fan body, and the lock bolt is driven by the lock column to perform locking rotation after contacting with the lock column so as to realize locking of the fan body and the frame body; still including locating in the fan body lock shell: a biasing member coupled to said latch assembly and biasing said latch toward unlatching rotation; the unidirectional stepless locking mechanism comprises a locking seat and a roller pin, the locking seat is fixed on the lock shell, the roller pin is in rolling contact with the surface of the lock bolt assembly, and the locking seat comprises a wedge surface in contact with the roller pin and a plane not in contact with the roller pin; and a clutch mechanism driving the roller pin to move between the wedge surface and the plane.

Description

Silent lock

Technical Field

The utility model relates to a tool to lock technical field, concretely relates to silence lock.

Background

The lock usually includes oblique spring bolt, at the in-process of closing the door, the spring bolt produces striking noise with the door frame striking, and at the locking in-process, the inclined plane of oblique spring bolt is received in the door frame effect indentation lock casing, and the spring bolt generally resets by spring control, lose the confined power to oblique spring bolt after getting into the lock frame, the spring bolt can produce the impact force in the twinkling of an eye that resets under the effect of elastic force, can produce the noise that the spring bolt strikes the door frame when locking from this, the click that the spring bolt locking resets, can not realize true noiselessness silence locking.

After the lock tongue among the prior art locks, can not closely paste tightly with the door leaf body to even discover that the door leaf body can not closely paste tightly with the door frame and also can not strengthen its laminating compactness, consequently, can make the door leaf send the noise of rocking when the door leaf is blown to, and indoor outer also is relatively poor because of the door leaf laminating compactness is poor causes syllable-dividing effect.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the unable real silence locking of realization of lock among the prior art and laminating the relatively poor defect of compactness to a silence lock is provided.

Therefore, the technical scheme of the utility model is as follows:

a silent lock, comprising:

the lock column is fixedly arranged on the frame body;

the lock bolt assembly comprises a lock bolt which is rotationally arranged on the fan body, and the lock bolt is driven by the lock column to perform locking rotation after contacting with the lock column so as to realize locking of the fan body and the frame body;

still including locating in the fan body lock shell:

a biasing member coupled to said latch assembly and biasing said latch toward unlatching rotation;

the one-way stepless locking mechanism comprises a locking seat and a roller pin, wherein the locking seat is fixed on the lock shell, the roller pin is in rolling contact with the surface of the lock bolt assembly, and the locking seat comprises a wedge surface in contact with the roller pin and a plane not in contact with the roller pin;

and a clutch mechanism driving the roller pin to move between the wedge surface and the plane.

Further, the lock bolt assembly also comprises a lock bolt connecting piece which moves linearly in the lock shell, the lock bolt connecting piece is connected with the lock bolt in a meshing way, and the biasing force piece is a spring connected to the lock bolt connecting piece.

Furthermore, the lock bolt connecting piece further comprises a locking slide block, the roller pin is in rolling connection with a locking surface of the locking slide block, the locking slide block slides in the locking seat, the side wall of the locking seat adjacent to the locking surface is provided with the wedge surface, and the locking surface is not parallel to the wedge surface.

Furthermore, the side wall is a step-shaped side wall and comprises a first plane and a second plane which are respectively parallel to the locking surface, and a step surface which is connected with the first plane and the second plane in an excessive mode, and the step surface forms the wedge surface.

Further, a first gap between the first plane and the locking surface is smaller than the outer diameter of the roller pin, and a second gap between the second plane and the locking surface is larger than the outer diameter of the roller pin.

Furthermore, the clutch mechanism comprises a clutch plate which is arranged between the locking sliding block and the locking seat in a sliding mode, the roller pin can be embedded in the clutch plate in a rolling mode, and the clutch plate moves in the direction parallel to the locking surface.

Furthermore, the clutch mechanism comprises a clutch seat which is inserted between the locking sliding block and the locking seat in a sliding manner, the roller pin can be embedded in the side wall of the clutch seat between the locking surface and the locking seat in a rolling manner, and the clutch seat moves in a direction parallel to the locking surface.

Further, the roller pin locking mechanism further comprises an unlocking mechanism, and the unlocking mechanism drives the clutch mechanism to drive the roller pin to move towards the second plane direction.

The handle unit is provided with a first rotation and a second rotation which rotate from a locking position, wherein the first rotation and the second rotation are opposite in direction.

Furthermore, one end of the unlocking mechanism is abutted to the handle unit, and the other end of the unlocking mechanism is abutted to the clutch mechanism.

Further, the first rotating self-locking position rotates to the unlocking position and triggers the unlocking mechanism to unlock, and the second rotating self-locking position continues to rotate to the locking direction and triggers the lock bolt assembly to perform reverse locking.

Furthermore, the silent lock further comprises a reverse locking protrusion arranged on the lock bolt connecting piece, and the reverse locking protrusion is located on a second rotating path of the handle unit.

Further, silence lock still includes the link gear, and it includes that it allows handle unit is located the rotatory tip pivoted rotation space of lock shell, the rotation space produces the position change by the key drive, the position is including the first position of restriction handle unit rotation and the second position that allows handle unit is rotatory.

Further, the link gear includes shift fork and linkage board, be equipped with shift fork bayonet socket and handle bayonet socket on the linkage board, the handle bayonet socket constitutes the space rotates, the shift fork bayonet socket is suitable for the removal end card of shift fork is gone into and is received the key drive drives the linkage board is in first position with reciprocating motion between the second position.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a silent lock, it includes: the lock column is fixedly arranged on the frame body; the lock bolt assembly comprises a lock bolt which is rotationally arranged on the fan body, and the lock bolt is driven by the lock column to perform locking rotation after contacting with the lock column so as to realize locking of the fan body and the frame body; still including locating in the fan body lock shell: a biasing member coupled to said latch assembly and biasing said latch toward unlatching rotation; the unidirectional stepless locking mechanism comprises a locking seat and a roller pin, the locking seat is fixed on the lock shell, the roller pin is in rolling contact with the surface of the lock bolt assembly, and the locking seat comprises a wedge surface in contact with the roller pin and a plane not in contact with the roller pin; and a clutch mechanism driving the roller pin to move between the wedge surface and the plane.

The lock bolt assembly is matched with a wedge surface and a roller pin in the unidirectional stepless locking mechanism to realize locking, and the roller pin is extruded by the lock bolt assembly and the wedge surface together due to the reaction force applied to the roller pin by the wedge surface, so that the stepless locking of the roller pin and the locking slide block is realized; the roller pin can be driven to switch between the locking state and the unlocking state by providing a flat surface which is not in contact with the roller pin and a clutch mechanism which drives the roller pin to move to the flat surface.

2. The utility model provides a silent lock, the set bar connecting piece still includes the locking slider, the roller round pin with the locking surface roll connection of locking slider, the locking slider is in locking seat sliding motion, with be equipped with on the adjacent locking seat lateral wall of locking surface the scarf, the locking surface is not parallel to the scarf.

Just because the wedge surface which is not parallel to the locking surface is arranged, a locking angle which does not allow the roller pin to pass through is formed between the wedge surface and the locking surface, and the roller pin enters the locking angle under the driving of the locking block and finally stops rotating and moving, so that the locking slide block is reacted by the roller pin and finally locked.

3. The utility model provides a mute lock, the lateral wall is the echelonment lateral wall, and it includes first plane and the second plane that is on a parallel with the locking surface respectively to and the step face of excessively connecting first, second plane, the step face constitutes the scarf; further, a first gap between the first plane and the locking surface is smaller than the outer diameter of the roller pin, and a second gap between the second plane and the locking surface is larger than the outer diameter of the roller pin.

The locking slide block is allowed to slide along the first plane and the second plane which are parallel to the locking plane by arranging the first plane and the second plane which are parallel to the locking plane, and meanwhile, as a first gap between the first plane and the locking plane is smaller than the outer diameter of the roller pin, a second gap between the second plane and the locking plane is larger than the outer diameter of the roller pin; the roller pin is limited to enter between the first plane and the locking plane, and the roller pin is allowed to rotate freely between the second plane and the locking plane, so that two states of the roller pin, namely a locking state in a wedge surface and an unlocking state in the second plane, are formed, and the silent lock is locked and unlocked.

4. The utility model provides a silent lock, clutching mechanism locates including sliding locking slide block with separation and reunion board between the locking seat, the roller round pin can inlay with rolling and establish in the separation and reunion board, the separation and reunion board along being on a parallel with the direction motion of locking surface.

Or the clutch mechanism comprises a clutch seat which is inserted between the locking sliding block and the locking seat in a sliding manner, the roller pin can be embedded in the side wall of the clutch seat between the locking surface and the locking seat in a rolling manner, and the clutch seat moves along the direction parallel to the locking surface.

The roller pin is embedded in the clutch plate or the clutch seat, so that the roller pin is allowed to rotate freely, and the sliding motion of the locking slide block along the surface of the roller pin can be realized; when the roller pin is positioned between the wedge surface and the locking surface, the roller pin is in a locked state due to the common acting force of the wedge surface and the locking surface and cannot freely roll, and meanwhile, the roller pin also applies a counterforce to the locking slide block to limit the sliding of the locking slide block.

5. The utility model provides a silent lock, still include the handle unit that carries out the unblanking, handle unit has rotatory first rotation and the second rotation from the locking position, wherein the first rotation with the second direction of rotation is opposite; further, the first rotating self-locking position rotates to the unlocking position and triggers the unlocking mechanism to unlock, and the second rotating self-locking position continues to rotate to the locking direction and triggers the lock bolt assembly to perform reverse locking.

Through allowing the handle unit to have first rotation and second rotation, and first rotation and second pivoted opposite direction, can further realize the reverse locking of handle unit except that the unblock operation, from this, when the gap between door leaf and the door frame is great, the further locking of door leaf and door frame is realized in the reverse locking operation of accessible handle unit, has improved syllable-dividing effect.

6. The utility model provides a silent lock, silent lock still includes the link gear, and it includes the space of turning that allows the rotatory tip that the handle unit is located in the lock shell to rotate, the space of turning is driven by the key and is produced the position change, the position includes the first position of restriction handle unit rotation and the second position that allows the handle unit rotation; further, the link gear includes shift fork and linkage board, be equipped with shift fork bayonet socket and handle bayonet socket on the linkage board, the handle bayonet socket constitutes the space rotates, the shift fork bayonet socket is suitable for the removal end card of shift fork is gone into and is received the key drive drives the linkage board is in first position with reciprocating motion between the second position.

Through the setting of the linkage mechanism controlled by the key end, the handle has the position allowing the handle to rotate and the position not allowing the handle to rotate, the door opening operation is prevented from being executed by rotating the handle under the condition that no key is inserted, and therefore the safety of the door lock is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the internal structure of the silent lock of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of the mute lock at another angle;

fig. 4 is a schematic structural view of a one-way stepless locking mechanism and a clutch mechanism of the mute lock of the present invention;

FIG. 5 is a schematic view of the clutch plate of FIG. 4 with the clutch plate removed;

FIG. 6 is a schematic view showing the engagement between the locking slider and the roller pin after the clutch seat is removed from the silent lock of the present invention;

fig. 7 is a schematic view illustrating the locking and unlocking principle of the mute lock of the present invention.

Description of reference numerals:

1-a lock cylinder; 11-a lock case; 12-a frame body; 13-sector;

2-a latch assembly; 21-a latch; 211-teeth; 22-locking plate, 221-tooth groove; 222-reverse locking projection; 23-locking the slide block; 231-a projection; 24-a locking surface;

3-a return spring;

41-wedge surface; 42-roll pins; 43-a locking seat; 431-side wall; 4311-first plane; 4312-second plane; 44-a first gap; 45-a second gap;

51-a clutch seat;

61-handle thumb wheel; 62-a first projection; 63-a second protrusion; 64-a transmission;

71-a shifting fork; 72-linkage plate; 721-fork bayonet; 722-handle bayonet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 and 3, the present invention discloses a silent lock, which comprises a lock cylinder 1, a lock bolt assembly 2, a biasing force member, a one-way stepless locking mechanism and a clutch mechanism. The lock cylinder 1 is fixedly arranged on a door frame body 12 (only the part of the door frame body 12 is shown in fig. 1), the lock bolt assembly 2 comprises a lock bolt 21 (only the part of the fan body 13 is shown in the same fig. 1) which is rotatably arranged on the fan body 13, and the lock bolt 21 is driven by the lock cylinder 1 to perform locking rotation after contacting with the lock cylinder to realize the locking of the fan body 13 and the frame body 12; a biasing member, in this embodiment a return spring 3, in particular a torsion spring, is provided in the lock housing 11 in the door leaf 13, which biasing member is connected to said latch assembly 2 and subjects said latch 21 to a biasing force tending to unlock rotation.

The utility model discloses a set bar subassembly 2 includes set bar 21 and carries out linear motion's set bar connecting piece in lock shell 11, and wherein the set bar connecting piece includes jam plate 22 and locking slider 23, jam plate 22 with set bar 21 is located the axle head meshing connection in lock shell 11, and reset spring 3's one end arm is connected in locking slider 23. Specifically, the locking plate 22 is provided with tooth grooves 221 at intervals, and the axial end of the lock bolt 21 in the lock case 11 is provided with teeth 211 at intervals, wherein the teeth 211 are engaged with the tooth grooves 221, the lock bolt 21 can be driven to vertically reciprocate by the forward and reverse rotation of the lock bolt 22, and conversely, the lock bolt 21 can also be driven to rotate forward and reverse by the vertical reciprocating movement of the lock plate 22. Reset spring 3 sets up and is fixed in lock shell 11 in, sets up two archs 231 that outstanding its surface set up on the locking slider 23, and reset spring 3's one end arm card is located between two archs 231, and reset spring 3 has the trend of reseing to the counter-clockwise motion in figure 1, can drive locking slider 23 upward movement from this through reset spring 3's rotation reset.

As shown in fig. 2-4, the one-way stepless locking mechanism of the present embodiment includes a wedge surface 41, a roller pin 42 and a locking seat 43. With reference to fig. 5-6, the locking socket 43 is fixed to the lock housing 11, the roller pin 42 is in rolling contact with the surface of the bolt assembly 2, the locking socket 43 includes a wedge surface 41 in contact with the roller pin 42, and a flat surface not in contact with the roller pin; the clutch mechanism drives the roller pin 42 to move between the wedge surface 41 and the plane surface.

The lock bolt assembly is matched with a wedge surface and a roller pin in the unidirectional stepless locking mechanism to realize locking, and the roller pin is extruded by the lock bolt assembly and the wedge surface together due to the reaction force applied to the roller pin by the wedge surface, so that the stepless locking of the roller pin and the locking slide block is realized; the roller pin can be driven to be switched tightly between the locking state and the unlocking state by providing a plane which is not contacted with the roller pin and a clutch mechanism which drives the roller pin to move to the plane.

Specifically, as shown in fig. 4-6, the locking slider 23 of the present invention is in sliding motion in the locking seat 43, the locking slider 23 has a locking surface 24 locked by the cooperation of the roller pin 42, the locking seat 43 is provided with the wedge surface 41 on the locking seat side wall adjacent to the locking surface 24, the roller pin 42 is connected to the locking surface 24 in a rolling manner, and the locking surface 24 is not parallel to the wedge surface 41.

Just because the wedge surface which is not parallel to the locking surface is arranged, a locking angle which does not allow the roller pin to pass through is formed between the wedge surface and the locking surface, and the roller pin enters the locking angle under the driving of the locking slide block and finally stops rotating and moving, so that the locking slide block is reacted by the roller pin and finally locked and stopped.

As shown in fig. 5-6, in the present embodiment, the locking seat 43 is a U-shaped seat with openings at upper and lower ends, the bottom wall of the U-shaped seat is fixedly connected with the lock housing 11, the locking slider 23 slides up and down in the locking seat 43, and the right side surface of the locking slider 23 is the locking surface 24, so that the inner side wall 431 of the right side end wall of the locking seat 43 corresponding to the locking surface 24 is provided with a wedge surface 41, and the roller pin 42 is disposed between the wedge surface 41 and the locking surface 24. As shown in fig. 6, the sidewall 431 of the locking seat 43 is a stepped sidewall, which includes a first plane 4311 and a second plane 4312 parallel to the locking plane, respectively, and a step plane connecting the first and second planes, and the step plane constitutes the wedge surface 41. And wherein a first gap 44 between the first flat 4311 and the lock face 24 is smaller than the outer diameter of the roller pin 42 and a second gap 45 between the second flat 4312 and the lock face 24 is larger than the outer diameter of the roller pin 42.

Referring to fig. 1-4, the clutch mechanism of the present invention includes a clutch seat 51 slidably disposed between the locking slider 23 and the locking seat 43, and the roller pin 42 is rotatably embedded in the side wall of the clutch seat 51 between the locking surface 24 and the locking seat 43. The clutch seat 51 in this embodiment is a U-shaped seat disposed opposite to the locking seat 43, wherein the upper and lower ends of the clutch seat 51 are also open, the two side arms thereof are respectively inserted into the inner sides of the two side arms of the locking seat 43 and slidably engaged therewith, the clutch seat 51 is slidably disposed in the locking seat 43, the locking slider 23 is slidably disposed in the clutch seat 51, and the clutch seat 51 moves in a direction parallel to the locking surface 24, i.e., moves in the up-down direction in fig. 1.

Of course, instead of a clutch plate, a clutch plate structure can be used, wherein the clutch plate is slidably disposed between the locking slide 23 and the side wall of the locking seat 43, and the roller pin 42 is rollably embedded in the clutch plate, and the clutch plate moves in a direction parallel to the locking surface 24.

When the roller pin 42 is located between the wedge surface 41 and the locking surface 24 of the locking slider 23, the roller pin 42 finally stops rotating and limits the locking slider 23 to move upwards due to the pressure applied by the wedge surface 41, so that the locking of the locking slider 23, namely the locking of the bolt 21 is realized, and the opening of the door is limited; when the roller pin 42 is driven by the clutch mechanism away from the wedge surface 41 and reaches between the second plane 4312 and the locking surface 24, the roller pin 42 is not in contact with the second plane 4312, i.e. the roller pin 42 can roll freely, so that the roller pin 42 is in rolling connection with the locking surface 24, and the locking slider 23 can move upwards along the roller pin 42, i.e. the locking of the lock plunger 21 is released.

The fan body 13 is further provided with a handle unit (not shown in the figures) for unlocking, as shown in fig. 1-3, the end of the handle unit located in the lock case 11 is further provided with a handle thumb wheel 61, the handle unit can drive the handle thumb wheel 61 to rotate, the handle unit is provided with a first rotation and a second rotation which rotate from a stop position, and the first rotation and the second rotation are opposite in direction. The first rotating self-locking position rotates to the unlocking position and triggers the unlocking mechanism to unlock, and the second rotating self-locking position continues to rotate to the locking direction and triggers the lock bolt assembly to perform reverse locking. In the embodiment, the first rotation is the rotation of the handle thumb wheel 61 in the clockwise direction in fig. 1, and corresponds to the pressing operation of the handle unit; the second rotation indicates the counterclockwise rotation of the handle thumb wheel 62 in fig. 1, corresponding to the lifting operation of the handle unit; the locked position refers to an initial position in which the handle wheel 61 is not rotated, that is, an initial position corresponding to the handle unit not being pressed or lifted.

Specifically, referring to fig. 1-3, the silent lock further includes a reverse locking projection 222 disposed on the lock plate 22, wherein the reverse locking projection 222 is located on the path of the second rotation of the handle wheel 61. When the handle unit is lifted, the handle wheel 61 rotates counterclockwise, i.e., performs the second rotation, thereby triggering the downward movement of the reverse locking protrusion 222 disposed on the second rotation path thereof, so as to drive the locking plate 22 to move downward, and the locking plate 22 moves downward to drive the lock bolt 21 engaged therewith to rotate toward the paper surface in fig. 1 (i.e., the lock bolt 21 rotates counterclockwise in fig. 7), at this time, the door leaf body 13 can be further locked and attached to the door frame body 12.

The utility model discloses a silent lock still includes release mechanism, the release mechanism drive clutch mechanism drives roller pin 42 enters into between second plane 4312 and the locking surface 24. One end of the unlocking mechanism is abutted to the handle unit, and the other end of the unlocking mechanism is abutted to the clutch mechanism.

Specifically, as shown in fig. 1, the unlocking mechanism in this embodiment is a transmission member 64, a first protrusion 62 is disposed on the handle thumb wheel 61, a transmission member 64 is disposed between the handle thumb wheel 61 and the clutch mechanism, a middle portion of the transmission member 64 is pivoted to the lock housing 11, the transmission member 64 is rotatable around the pivoted portion, one end arm of the transmission member 64 abuts against an upper end portion of the clutch base 51, the other end arm of the transmission member 64 is disposed on a first rotation path of the handle thumb wheel 61, specifically, the other end arm of the transmission member 64 abuts against the first protrusion 62 of the handle thumb wheel 61, when the handle unit performs an unlocking operation, the transmission member 61 is driven to rotate in an unlocking direction (i.e., rotate clockwise), so that the first protrusion 62 of the handle thumb wheel 61 dials the transmission member 64, the transmission member 64 is driven to rotate counterclockwise, the end arm of the handle thumb wheel presses the clutch base 51, the driving roller pin 42 of the clutch base 51 leaves the wedge surface 41 and reaches between the second plane 43, the lock of the lock slider 23 is released.

Referring to fig. 1 and 3, the silent lock of the present invention further includes a linkage mechanism, the linkage mechanism includes a shifting fork 71 and a linkage plate 72, the linkage plate 72 is provided with a shifting fork bayonet 721 and a handle bayonet 722, the handle bayonet 722 forms a rotation space, which allows the handle wheel 61 of the handle unit located in the lock case 11 to rotate, the shifting fork bayonet 721 is suitable for the moving end of the shifting fork 71 to be clamped, a key is inserted to rotate to drive the shifting fork 71 to rotate so as to drive the linkage plate 72 to reciprocate between the first position and the second position, the rotation space generates a position change along with the movement of the linkage plate 72, when the lever is in the first position (i.e. the position in fig. 1), the rotation space does not correspond to the second protrusion 63 on the handle wheel 61, the second protrusion 63 is limited at the top side edge of the linkage plate 72 and cannot rotate to enter the rotation space, the unlocking operation cannot be performed by pressing down the handle; and when in the second position (i.e., the right-hand side in fig. 1 moves to position the handle bayonet 722 below the handle wheel 61), the rotation space moves to a position below the second protrusion 63 on the handle wheel 61, and at this time, the second protrusion 63 is allowed to enter the rotation space, that is, the handle unit is allowed to perform a push-down unlocking operation.

Of course, the linkage mechanism further includes a return spring for returning the linkage plate 72 to the first position, so that the linkage plate 72 is automatically returned to the first position after the shifting fork is returned.

The utility model discloses a working process of silence lock includes:

the door opening process:

referring to fig. 1, first, the shift fork 71 is driven to rotate by the key insertion rotation, so that the linkage plate 72 is pushed to move to the right position (i.e., the second position) in fig. 1, so that the rotation space moves to below the second protrusion 63, and at this time, the handle unit is allowed to perform the pressing-down operation;

then, the handle unit is pressed down, the handle thumb wheel 61 rotates clockwise, the first bulge 62 pushes the transmission piece 64 to rotate anticlockwise, the other end of the transmission piece 64 presses the clutch seat 51 downwards, the clutch seat 51 drives the roller pin 42 to move downwards to be separated from the wedge surface 41 and move towards the second plane 4312 direction, and therefore the locking of the one-way stepless locking mechanism on the locking sliding block 23 is released;

then, the locking slider 23 is moved upward by the return spring 3 due to the unlocking, and at the same time, the locking plate 22 is moved upward, and the locking plate 22 is moved upward and at the same time, the locking bolt 21 engaged therewith is rotated in the opening direction (i.e., clockwise in fig. 7), thereby completing the unlocking and door opening operations.

The door closing process:

referring to fig. 7, the fan body 13 is folded toward the frame body 12, the lock cylinder 11 on the frame body 12 enters the groove of the latch bolt 21 and drives the latch bolt 21 to rotate in the locking direction (i.e., counterclockwise in fig. 7), and thus the lock plate 22 engaged with the latch bolt 21 is driven to move downward, the lock plate 22 moves downward and drives the locking slider 23 to move downward and stop moving downward after the door is finally closed, at this time, since the clutch base 51 is in the initial position, that is, the roller pin 42 is in the locking state of simultaneously contacting with the locking slider 23 and the wedge surface 41, the locking slider 23 is restricted from moving upward after moving downward, and the fan body 13 is not opened.

And (3) reverse locking process:

after the door is closed and locked, if a user wants to further lock the door to reduce the gap between the fan body 13 and the frame 12, the handle unit can be lifted upwards in the opposite direction, see fig. 1, at this time, the handle unit rotates counterclockwise and triggers the reverse locking protrusion 222 on the locking plate 22, so as to push the locking plate 22 to move downwards, the locking plate 22 moves downwards to drive the lock bolt 21 engaged with the locking plate to further rotate in the locking direction, and the lock bolt 21 rotates in the locking direction (i.e., counterclockwise direction in fig. 7), so that the fan body 13 and the frame 12 are further locked.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A silent lock, comprising:

the lock column is fixedly arranged on the frame body;

it is characterized in that the preparation method is characterized in that,

still including locating in the fan body lock shell:

2. The silent lock of claim 1, wherein: the lock bolt assembly also comprises a lock bolt connecting piece which moves linearly in the lock shell, the lock bolt connecting piece is engaged and connected with the lock bolt, and the biasing force piece is a spring connected with the lock bolt connecting piece.

3. The silent lock of claim 2, wherein: the lock bolt connecting piece further comprises a locking sliding block, the roller pin is in rolling connection with the locking surface of the locking sliding block, the locking sliding block slides in the locking seat, the side wall of the locking seat adjacent to the locking surface is provided with the wedge surface, and the locking surface is not parallel to the wedge surface.

4. The silent lock of claim 3, wherein: the side wall is a step-shaped side wall and comprises a first plane and a second plane which are respectively parallel to the locking surface and a step surface which is in transition connection with the first plane and the second plane, and the step surface forms the wedge surface.

5. The silent lock of claim 4, wherein: a first gap between the first plane and the locking surface is smaller than the outer diameter of the roller pin, and a second gap between the second plane and the locking surface is larger than the outer diameter of the roller pin.

6. The silent lock of claim 4, wherein: the clutch mechanism comprises a clutch plate which is arranged between the locking sliding block and the locking seat in a sliding mode, the roller pin is embedded in the clutch plate in a rolling mode, and the clutch plate moves in a direction parallel to the locking surface.

7. The silent lock of claim 4, wherein: the clutch mechanism comprises a clutch seat which is inserted between the locking sliding block and the locking seat in a sliding manner, the roller pin is embedded in the side wall between the locking surface and the locking seat on the clutch seat in a rolling manner, and the clutch seat moves in a direction parallel to the locking surface.

8. A silent lock according to any of claims 4-7, characterized in that: the unlocking mechanism drives the clutch mechanism to drive the roller pin to move towards the second plane direction.

9. The silent lock of claim 8, wherein: the handle unit is provided with a first rotation and a second rotation which rotate from a locking position, wherein the direction of the first rotation is opposite to that of the second rotation.

10. The silent lock of claim 9, wherein: one end of the unlocking mechanism is abutted to the handle unit, and the other end of the unlocking mechanism is abutted to the clutch mechanism.

11. The silent lock of claim 9, wherein: the first rotating self-locking position rotates to the unlocking position and triggers the unlocking mechanism to unlock, and the second rotating self-locking position continues to rotate to the locking direction and triggers the lock bolt assembly to perform reverse locking.

12. The silent lock of claim 11, wherein: the silent lock further comprises a reverse locking bulge arranged on the lock bolt connecting piece, and the reverse locking bulge is positioned on a second rotating path of the handle unit.

13. The silent lock of claim 9, wherein: the silent lock further comprises a linkage mechanism, the linkage mechanism comprises a rotating space allowing the handle unit to rotate at the rotating end part in the lock shell, the rotating space is driven by a key to generate position change, and the position comprises a first position limiting the rotation of the handle unit and a second position allowing the rotation of the handle unit.

14. The silent lock of claim 13, wherein: the linkage mechanism comprises a shifting fork and a linkage plate, wherein a shifting fork bayonet and a handle bayonet are arranged on the linkage plate, the handle bayonet forms the rotating space, the shifting fork bayonet is suitable for the moving end of the shifting fork to be clamped in and driven by the key, and the linkage plate is in reciprocating motion between the first position and the second position.