CN110821286B - Lock body and safety mechanism thereof - Google Patents
Lock body and safety mechanism thereof Download PDFInfo
- Publication number
- CN110821286B CN110821286B CN201810921032.3A CN201810921032A CN110821286B CN 110821286 B CN110821286 B CN 110821286B CN 201810921032 A CN201810921032 A CN 201810921032A CN 110821286 B CN110821286 B CN 110821286B
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- Prior art keywords
- clutch
- shifting block
- piece
- lock tongue
- trigger
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- 230000007246 mechanism Effects 0.000 title claims abstract description 92
- 230000005540 biological transmission Effects 0.000 claims description 75
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 11
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/0013—Followers; Bearings therefor
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
- E05B3/003—Fastening knobs or handles to hollow cylindrical spindles, e.g. of tubular locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/146—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks with two or more bolts, each bolt itself being a tumbler
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a lock body and a safety mechanism thereof, wherein the safety mechanism of the lock body comprises: the clutch mechanism, clutch mechanism includes: a shifting block driven by the handle, a clutch seat capable of driving the main lock tongue to move, and a clutch piece capable of combining and separating the shifting block and the clutch seat; the trigger lock tongue is movably arranged and connected with the clutch piece; when the trigger lock tongue moves, the clutch piece can be driven to move so that the shifting block is combined with the clutch seat, and when the trigger lock tongue moves into the lock shell, the shifting block is combined with the clutch seat. The safety mechanism of the lock body ensures that the combination of the clutch seat and the shifting block can be realized when the door is closed, namely, the lifting handle can be realized to enable the main lock tongue to extend, so that the main lock tongue is prevented from extending due to the fact that the handle is lifted by mistake in the door closing process, namely, the main lock tongue and the door frame are prevented from collision due to the fact that the handle is lifted by mistake in the door closing process, and the lock body and the door frame are prevented from being damaged due to the fact that the handle is lifted by mistake in the door closing process.
Description
Technical Field
The invention relates to the technical field of door locks, in particular to a lock body and a safety mechanism thereof.
Background
Currently, most door locks are opened by pressing down a handle and locked by lifting up the handle. If the handle is mistakenly lifted when the door is not closed in the process of closing the door, the main lock tongue of the lock body is easier to collide with the door frame, and the lock body and the door frame are easier to damage.
In summary, how to design the lock body to avoid damaging the lock body and the door frame due to the mistaken lifting of the handle during the door closing process is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a safety mechanism of a lock body, so as to avoid damaging the lock body and a door frame due to mistaken lifting of a handle in the process of closing a door. Another object of the present invention is to provide a lock body having the above-mentioned safety mechanism.
In order to achieve the above object, the present invention provides the following technical solutions:
a safety mechanism for a lock body, comprising:
a clutch mechanism, the clutch mechanism comprising: a shifting block capable of being driven by a handle, a clutch seat capable of driving a main lock tongue to move, and a clutch member capable of engaging and disengaging the shifting block with the clutch seat;
the trigger lock tongue is movably arranged and connected with the clutch piece;
when the trigger lock tongue moves, the clutch piece can be driven to move so that the shifting block is combined with the clutch seat, and when the trigger lock tongue moves into the lock shell, the shifting block is combined with the clutch seat.
Preferably, the shifting block is connected with the clutch seat in a sleeved mode, and the clutch piece can be driven to move along the direction perpendicular to the axial direction of the clutch seat when the trigger lock tongue moves.
Preferably, the clutch seat is sleeved on the shifting block, the clutch piece is movably arranged on the clutch seat, and the shifting block is provided with a clutch hole capable of being matched with the clutch piece.
Preferably, a reset elastic piece capable of deforming along the moving direction of the clutch piece is arranged in the clutch seat, one end of the reset elastic piece is connected with the clutch seat, and the other end of the reset elastic piece is connected with the clutch piece.
Preferably, the trigger lock tongue is connected with the clutch piece through a transmission mechanism.
Preferably, the transmission mechanism is a slanting wedge mechanism, a driving piece of the slanting wedge mechanism is connected with the trigger lock tongue, and a stress piece of the slanting wedge mechanism is connected with the clutch piece.
Preferably, the driving member is a driving rod, and the stress member is provided with a first guide groove and a second guide groove which is communicated with the first guide groove and is arranged in an opposite inclined manner; the length direction of the second guide groove is the same as the moving direction of the trigger lock tongue, and the second guide groove and the first guide groove are both in sliding fit with the driving rod.
Preferably, the trigger lock tongue is fixedly connected with the clutch piece; when the trigger lock tongue extends out of the lock shell, the trigger lock tongue drives the clutch piece to move so as to separate the shifting block from the clutch seat.
Preferably, the trigger latch is located on the underside of the clutch seat.
Preferably, the safety mechanism of the lock body further comprises a force storing elastic piece;
when the shifting block is in a first state, the shifting block limits the clutch piece to move so as to limit the shifting block to be combined with the clutch seat, and the force-storing elastic piece stores driving acting force generated when the trigger lock tongue moves;
when the shifting block is in the second state, the shifting block releases the limit on the clutch piece, the force-storing elastic piece releases the driving acting force, and the driving acting force drives the clutch piece to move so that the shifting block is combined with the clutch seat.
Preferably, the trigger lock tongue is connected with the clutch piece through a transmission mechanism;
the force-storing elastic piece is connected with the transmission mechanism and the clutch piece;
alternatively, the transmission mechanism includes: the first transmission piece is connected with the trigger lock tongue, and the second transmission piece is connected with the clutch piece; the second transmission piece and the first transmission piece can move relatively, and the force storage elastic piece is connected with the first transmission piece and the second transmission piece.
The invention further provides a lock body based on the safety mechanism of the lock body, the lock body comprises a lock shell and the safety mechanism of any one of the above, and the trigger lock tongue is movably arranged on the lock shell.
The invention provides a working principle of a safety mechanism of a lock body:
in the door closing process, the trigger lock tongue moves under the acting force of the door frame, and the trigger lock tongue drives the clutch to move; when the door is closed, the trigger lock tongue moves into the lock shell, the clutch piece enables the clutch seat to be combined with the shifting block, at the moment, the handle is lifted, the shifting block can be driven to rotate, and the clutch seat combined with the shifting block rotates along with the shifting block, so that the main lock tongue can be driven to extend out of the lock shell, and the door is locked.
The safety mechanism of the lock body provided by the invention ensures that the combination of the clutch seat and the shifting block can be realized when the door is closed by arranging the trigger lock tongue and the clutch piece, namely the lifting handle can be realized to enable the main lock tongue to extend.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a safety mechanism of a lock body according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a safety mechanism of a lock body according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a block in a safety mechanism of a lock body according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the assembly of a clutch seat and a clutch member in a safety mechanism of a lock body according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a clutch member in a safety mechanism of a lock body according to an embodiment of the present invention in a non-working state;
FIG. 6 is an enlarged view of a portion of FIG. 5;
fig. 7 is a schematic structural diagram of a clutch in a safety mechanism of a lock body according to an embodiment of the present invention in a working state;
fig. 8 is a schematic structural view of a lock body safety mechanism according to an embodiment of the present invention when a shifting block limits movement of a clutch device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, a safety mechanism of a lock body according to an embodiment of the present invention includes: a clutch mechanism and a trigger bolt 9.
The clutch mechanism includes: a shifting block 3 driven by a handle, a clutch seat 2 capable of driving the main bolt to move, and a clutch piece 4 capable of combining and separating the shifting block 3 and the clutch seat 2. The trigger lock tongue 9 is movably disposed, and the trigger lock tongue 9 is connected to the clutch member 4.
When the trigger bolt 9 moves, the clutch piece 4 can be driven to move so as to enable the shifting block 3 to be combined with the clutch seat 2, and when the trigger bolt 9 moves into the lock shell, the shifting block 3 is combined with the clutch seat 2.
It will be appreciated that the above-mentioned shifting block 3 is driven by the handle, the rotation angle of the shifting block 3 is + -a, and there is a limit in the extreme position. a is a set angle, and specific values of a are set according to actual needs, for example, a=40°, which is not limited in the embodiment of the present invention. The extension or retraction of the main bolt is mainly driven by the clutch seat 2, so that the clutch seat 2 does not move and the main bolt does not move.
It should be noted that, the trigger lock tongue 9 is connected to the clutch member 4, and the trigger lock tongue 9 and the clutch member may be directly connected or indirectly connected. The embodiment of the invention does not limit the connection structure of the two, as long as the movement of the trigger bolt 9 can be ensured, the clutch piece 4 can be driven to move so as to combine the shifting block 3 with the clutch seat 2, and the shifting block 3 is combined with the clutch seat 2 when the trigger bolt 9 moves into the lock shell. The trigger lock tongue 9 and the clutch member 4 may be directly connected by abutting or by bonding.
When the door is opened, the trigger lock tongue 9 extends to the outer side of the lock shell; in the door closing process, the handle is not lifted, and when the trigger lock tongue 9 contacts the door frame, the trigger lock 9 moves under the pushing of the door frame; when the door is closed, the trigger bolt 9 moves into the lock housing. When the shifting block 3 is combined with the clutch seat 2, the clutch seat 2 rotates along with the shifting block 3; when the shifting block 3 is separated from the clutch base 2, the clutch base 2 cannot rotate along with the shifting block 3, namely, the shifting block 3 idles.
The working principle of the safety mechanism of the lock body provided by the embodiment of the invention is as follows:
in the door closing process, the trigger lock tongue 9 moves under the acting force of the door frame, and the trigger lock tongue 9 drives the clutch 4 to move; when the door is closed, the trigger lock tongue 9 moves into the lock shell, the clutch piece 4 enables the clutch seat 2 to be combined with the shifting block 3, at the moment, the handle is lifted, the shifting block 3 can be driven to rotate, the clutch seat 2 combined with the shifting block 3 rotates along with the shifting block 3, and then the main lock tongue can be driven to extend out of the lock shell, so that the door can be locked.
The safety mechanism of the lock body provided by the embodiment of the invention ensures that the combination of the clutch seat 2 and the shifting block 3 can be realized only when the door is closed by arranging the trigger lock tongue 9 and the clutch piece 4, namely the lifting handle can be realized to enable the main lock tongue to extend.
In the safety mechanism of the lock body, the clutch piece 4 realizes the combination and separation of the shifting block 3 and the clutch seat 2, and various structures exist. For example, the shifting block 3 is sleeved and connected with the clutch seat 2, the clutch piece 4 can connect the shifting block 3 with the clutch seat 2, and the clutch piece 4 can also be separated from the shifting block 3 or the clutch seat 2; alternatively, the dial 3 is arranged side by side with the clutch base 2, the clutch base 2 is coupled with the dial 3 when the clutch member 4 moves the clutch base 2 to the coupling position, and the clutch base 2 is separated from the dial 3 when the clutch member 4 moves the clutch base 2 to the separating position. In order to facilitate the combination and the separation and to reduce the occupied space, the former is preferably selected, specifically, the shifting block 3 is sleeved and connected with the clutch seat 2, and the trigger lock tongue 9 can drive the clutch piece 4 to move along the direction perpendicular to the axial direction of the clutch seat 2 when moving. It will be appreciated that the axial direction of the clutch seat 2 is the axial direction of the shift block 3.
In the structure, the clutch seat 2 can be sleeved outside the shifting block 3 or sleeved inside the shifting block 3. For ease of installation, the clutch base 2 is preferably sleeved on the shifting block 3.
The clutch member 4 is movably disposed on the clutch base 2, and the dial 3 has a clutch hole 301 that can be engaged with the clutch member 4.
It can be understood that, when the handle is not lifted during the door closing process, the clutch hole 301 is opposite to the clutch member 4, so as to ensure that the clutch member 4 enters the clutch hole 301 under the driving of the trigger bolt 9, so as to realize the combination of the clutch seat 2 and the dial block 3. When the clutch thimble is not in the clutch hole 301, the clutch seat 2 is separated from the shifting block 3. With the movement of the trigger tongue 9, the clutch member 4 moves within the clutch seat 2.
The clutch base 2 has a mounting hole 201 for mounting the clutch 4, and the clutch 4 is slidably mounted in the mounting hole 201.
In order to facilitate the sliding of the clutch member 4, the clutch member 4 is a clutch thimble. Of course, the clutch member 4 may be alternatively shaped, such as a clutch plate, etc., but is not limited thereto.
The clutch hole 301 may be a through hole or a blind hole, which is not limited in the embodiment of the present invention.
After the door is closed, the door is opened again, the trigger lock tongue 9 stretches out of the lock shell, and the clutch piece 4 needs to be reset at the moment so as to ensure that the door is closed again. The resetting of the clutch member 4 can be achieved by the action force of the trigger lock tongue 9, specifically, the trigger lock tongue 9 is fixedly connected with the clutch member 4, and when the trigger lock tongue 9 extends out of the lock shell, the trigger lock tongue 9 drives the clutch member 4 to move so as to separate the clutch seat 2 from the shifting block 3.
The trigger lock tongue 9 is fixedly connected with the clutch piece 4, and when the trigger lock tongue 9 is directly connected with the clutch piece 4, the trigger lock tongue 9 is directly fixedly connected with the clutch piece 4; when the trigger lock tongue 9 is indirectly connected with the clutch member 4, for example, the trigger lock tongue 9 is indirectly connected with the clutch member 4 through a transmission mechanism, and then the trigger lock tongue 9 is indirectly fixedly connected with the clutch member 4 through the transmission mechanism.
Of course, the resetting of the clutch 4 can also be achieved in other ways. Specifically, a reset elastic member is disposed in the clutch seat 2, and the reset elastic member can deform along the moving direction of the clutch member 4, specifically, one end of the reset elastic member is connected with the clutch seat 2, and the other end of the reset elastic member is connected with the clutch thimble.
When the clutch member 4 does not enter the clutch hole 301, the return elastic member remains as it is, and when the clutch member 4 enters the clutch hole 301, the return elastic member is compressed. When the door is opened, the trigger lock tongue 9 extends out of the lock shell, and the clutch piece 4 resets under the restoring force of the resetting elastic piece, so that the resetting is facilitated.
In the above structure, the clutch member 4 is connected to the trigger tongue 9, specifically, the clutch member 4 is connected to the trigger tongue 9 by abutment. The clutch piece 4 is abutted with the trigger lock tongue 9, namely the clutch piece 4 is directly connected with the trigger lock tongue 9; or the trigger lock tongue 9 is abutted with the clutch piece 4 through the connecting part, namely the trigger lock tongue 9 is indirectly connected with the clutch piece 4 through the connecting part. When the trigger lock tongue 9 extends out of the lock shell, the trigger lock tongue 9 cannot apply an acting force to the clutch member 4, and the clutch member 4 is reset only by the restoring force of the reset elastic member.
In order to facilitate the resetting, the resetting elastic piece is a resetting spring.
In order to improve the resetting reliability, the clutch member 4 is preferably reset by the restoring force of the resetting elastic member and the acting force applied to the clutch member 4 by the trigger latch 9.
In order to facilitate the triggering of the bolt 9 to drive the clutch 4 to move, the clutch seat 2 is combined with the shifting block 3. Preferably, the trigger bolt 9 is indirectly connected with the clutch member 4. Specifically, the trigger tongue 9 is connected to the clutch member 4 via a transmission mechanism. In particular, when the clutch member 4 moves in a direction perpendicular to the axial direction of the clutch base 2.
The moving direction of the clutch member 4 may be perpendicular to or parallel to the moving direction of the trigger tongue 9. In order to avoid the trigger bolt 9 affecting the setting of the main bolt, the moving direction of the clutch member 4 is preferably selected to be perpendicular to the moving direction of the trigger bolt 9.
When the moving direction of the clutch member 4 is perpendicular to the moving direction of the trigger lock tongue 9, there are various driving mechanisms for converting the horizontal movement into the vertical movement, such as a sliding block mechanism, a wedge mechanism, a pulley mechanism, etc., and the driving mechanism can be designed according to practical needs.
In order to improve reliability, the transmission mechanism is preferably an inclined wedge mechanism, specifically, the driving member 11 of the inclined wedge mechanism is connected with the trigger lock tongue 9, and the stress member 8 of the inclined wedge mechanism is connected with the clutch member 4.
The force-bearing member 8 and the clutch member 4 may be directly or indirectly connected. And the design is specifically carried out according to actual needs.
Further, the driving member 11 is a driving rod, and the stress member 8 has a first guide groove 801 and a second guide groove 802 which is communicated with the first guide groove 801 and is disposed obliquely relative to the first guide groove; the length direction of the second guide groove 802 is the same as the moving direction of the trigger bolt 9, and the second guide groove 802 and the first guide groove 801 are both in sliding fit with the driving rod.
It will be appreciated that the first channel 801 communicates with the second channel 802 along the length of the second channel 802.
For ease of installation, one side of the first channel 801 has an opening for the entry of the active rod. The plane of the opening of the first guide groove 801 and the plane of the notch of the first guide groove 801 are perpendicular to each other.
The inclination direction of the first guide groove 801 needs to be designed according to the relative positions of the first guide groove 801 and the second guide groove 802. Specifically, the end of the first guide groove 801 far from the second guide groove 802 is a first end, and the end of the first guide groove 801 near to the second guide groove 802 is a second end. When the first guide groove 801 is located at a side of the second guide groove 802 close to the clutch seat 2, the first guide groove 801 is inclined from its second end to its first end in a direction close to the clutch seat 2; when the first guide groove 801 is located at a side of the second guide groove 802 away from the clutch base 2, the first guide groove 801 is inclined from its second end to its first end in a direction away from the clutch base 2.
Of course, other structures of the inclined wedge mechanism may be selected, for example, the driving member 11 has a first inclined wedge surface, and the force-receiving member 8 has a second inclined wedge surface matching the first inclined wedge surface, which is not limited to the above embodiment.
In the safety mechanism of the lock body, the trigger lock tongue 9 may be located at the lower side of the clutch seat 2 or may be located at the upper side of the clutch seat 2. In order to reduce the overall lock volume, the trigger tongue 9 is preferably located on the underside of the clutch base 2.
It will be understood that "upper" and "lower" refer to "upper" and "lower" respectively, in the vertical direction, when the entire lock body is installed on the door.
In order to further optimize the technical scheme, the safety mechanism of the lock body further comprises a force storing elastic piece 5.
When the shifting block 3 is in the first state, the shifting block 3 limits the clutch piece 4 to move so as to limit the combination of the shifting block 3 and the clutch seat 2, and the force-storing elastic piece 5 stores the driving acting force generated when the trigger lock tongue 9 moves; when the shifting block 3 is in the second state, the shifting block 3 releases the restriction on the clutch member 4, and the force-storing elastic member 5 releases the driving force, and the driving force drives the clutch member 4 to move so as to combine the shifting block 3 with the clutch base 2.
It will be appreciated that when the handle is not lifted, the dial 3 is in the second state; after lifting the handle, the dial 3 is in the first state.
Taking fig. 5 as an example, when the handle is not lifted, the clutch hole 301 is opposite to the clutch piece 4, and the shifting block 3 is in the second state, and at this time, the clutch piece 4 can realize the combination of the clutch seat 2 and the shifting block 3; taking fig. 8 as an example, after the handle is lifted, the clutch hole 301 is staggered with the clutch member 4, and the shift block 3 is in the first state, and at this time, the clutch member 4 cannot realize the combination of the clutch seat 2 and the shift block 3.
In the above structure, when the handle is lifted up to close the door, because the shifting block 3 is in the first state, that is, the shifting block 3 rotates by a preset angle, the shifting block 3 limits the movement of the clutch member 4 to limit the clutch member 4 to combine the shifting block 3 with the clutch seat 2, at this time, the lifting handle cannot enable the main lock tongue to extend, that is, the door cannot be locked, and the main lock tongue cannot collide with the door frame. When the handle is lifted to close the door, the driving force generated when the trigger bolt 9 moves is stored by the force storing elastic piece 5. After the door is closed, the handle is released, the handle returns to the original position, and the shifting block 3 also returns to the original position along with the handle, at this time, the shifting block 3 releases the restriction on the clutch member 4, so that the clutch member 4 moves, and the shifting block 3 is combined with the clutch base 2. The handle is lifted again, and the main lock tongue stretches out, thus the door can be locked.
The safety mechanism of the lock shell prevents the inner structure of the lock body from being damaged and prevents the main lock tongue from colliding with the door frame in the process of closing the door by lifting the handle; moreover, the door can be closed by lifting the handle, so that the reliability and convenience are improved.
The arrangement of the force-storing elastic piece 5 depends on the connection relation between the trigger lock tongue 9 and the clutch piece 4. When the trigger lock tongue 9 is directly connected with the clutch 4, the force-storing elastic piece 5 is connected with the trigger lock tongue 9 and the clutch 4, and the force-storing elastic piece 5 can deform along the movement direction of the clutch 4.
When the trigger lock tongue 9 is connected with the clutch 4 through the transmission mechanism, the force storing elastic piece 5 is connected with the transmission mechanism and the clutch 4, and the force storing elastic piece 5 can deform along the movement direction of the clutch 4.
Of course, the force storing elastic member 5 may be alternatively provided in the transmission mechanism. Specifically, the transmission mechanism includes: a first transmission member connected with the trigger bolt 9, and a second transmission member 7 connected with the clutch member 4; the second transmission member 7 and the first transmission member are capable of moving relatively, and the force storing elastic member 5 is connected with the first transmission member and the second transmission member 7.
It will be appreciated that the force-storing elastic member 5 is deformable in the moving direction of the clutch member 4; the second transmission member 7 is movable relative to the first transmission member in the direction of movement of the clutch member 4.
The second transmission member 7 and the first transmission member are capable of moving relatively, for example, the first transmission member and the second transmission member 7 are connected by a fastener 6, and the first transmission member and the second transmission member 7 are provided with a placement hole for mounting the fastener 6, and the placement hole is strip-shaped. In particular, the fastener 6 is a rivet or screw. Of course, the second transmission member 7 and the first transmission member may alternatively be moved relatively by other connection structures, which is not limited to the above embodiment.
When the first transmission member moves under the drive of the trigger lock tongue 9, the movement of the separating member 4 is limited by the shifting block 3, so that the movement of the second transmission member 7 is also limited, the second transmission member 7 is kept motionless, namely, the first transmission member moves relative to the second transmission member 7, so that the force-storing elastic member 5 is deformed, and the force-storing elastic member 5 stores the acting force of the trigger lock tongue 9 on the first transmission member, namely, the driving acting force generated when the trigger lock tongue 9 moves; when the separating piece 4 is released from the restriction of the shifting block 3, the separating piece 4 and the second transmission piece 7 can move, and the separating piece 4 and the second transmission piece 7 move under the action of the restoring force of the force-storing elastic piece 5, so that the combination of the clutch base 2 and the shifting block 3 is realized.
Preferably, the force-storing elastic member 5 is a force-storing spring. When the first transmission member moves relative to the second transmission member 7, the force-storing spring can be compressed or stretched, and the force-storing spring is specifically set according to actual needs.
In order to facilitate the installation of the force-storing elastic member 5, the first transmission member is provided with a first hook leg, the second transmission member 7 is provided with a second hook leg, and two ends of the force-storing elastic member 5 are respectively hooked on the first hook leg and the second hook leg.
When the transmission mechanism is an inclined wedge mechanism, the driving part 11 of the inclined wedge mechanism is connected with the trigger lock tongue 9, and the stress part 8 of the inclined wedge mechanism is connected with the clutch part 4, the first transmission part is the stress part 8. The inclined wedge mechanism also comprises a second transmission piece 7. For specific connection structure, please refer to the above.
It should be noted that "realizing locking of the door" described herein may be "realizing back locking".
In order to embody the present invention more specifically, the respective states of the safety mechanism of the lock body described above will be described with reference to one specific configuration:
as shown in fig. 5 and 6, in the open state, the trigger lock tongue 9 extends out of the lock case, because of the action of the first guide groove 801, the second transmission member 7 and the force receiving member 8 move downward, the clutch member 4 moves downward by the action of the reset elastic member in the clutch base 2, at this time, the clutch member 4 is in the non-working state, and the lifting handle cannot drive the clutch base 2 to rotate, but only the dial block 3 rotates in idle work.
As shown in fig. 7, in the door closing state, since the trigger latch 9 is forced to move into the lock case, the first guide groove 801 drives the second transmission member 7 and the force receiving member 8 to move upward, the clutch member 4 is also lifted, and the clutch member 4 is in an operating state, and at this time, a handle can be lifted up to extend the main latch.
The second transmission piece 7 and the stress piece 8 can relatively move, and when the second transmission piece 7 is motionless, the stress piece 8 can move upwards relative to the second transmission piece 7; when the stress piece 8 is motionless, the second transmission piece 7 can move downwards relative to the stress piece 8, and the position relationship between the second transmission piece 7 and the stress piece 8 is reset through the force storage elastic piece 5.
As shown in fig. 8, when the door is closed in the state of being lifted up, since the dial 3 rotates at the position of 40 °, that is, the dial 3 is in the first state, the clutch hole 301 of the dial 3 and the mounting hole 201 of the clutch base 2 cannot be aligned, so that the clutch member 4 cannot be lifted up by an external force, and when the door is required to be closed, the trigger bolt 9 is forced to move into the lock case, the force storage elastic member 5 is triggered to store a force, and when the door is closed, the handle is released, the handle returns to the horizontal position, the dial 3 also returns to the horizontal position along with the handle, that is, the dial 3 is in the second state, the clutch hole 301 of the dial 3 and the mounting hole 201 of the clutch base 2 are aligned, and the driving force stored by the force storage elastic member 5 enables the second transmission member 7 to be lifted up, so that the clutch member 4 is simultaneously moved up to combine the dial 3 and the clutch base 2, and the handle is lifted up again, so that the locking action can be completed.
The embodiment of the invention also provides a lock body based on the safety mechanism of the lock body provided by the embodiment, and the lock body comprises a lock shell and the safety mechanism of the lock body provided by the embodiment; wherein the trigger bolt 9 is movably arranged on the lock shell.
Specifically, the dial 3 is rotatably provided to the lock case. When the trigger lock tongue 9 is connected with the clutch member 4 through a transmission mechanism, the transmission mechanism is an inclined wedge mechanism, and the inclined wedge mechanism comprises a driving member 11, a stress member 8 and a second transmission member 7, the stress member 8 is a first transmission member. At this time, the second transmission member 7 is movably disposed on the lock case, and the stress member 8 is movably disposed on the second transmission member 7.
The lock case comprises a lock case body 1 and a side plate 10 positioned on one side of the lock case body 1, wherein the side plate 10 is provided with a through hole for the main lock tongue and the trigger lock tongue 9 to extend out.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. A safety mechanism for a lock body, comprising:
a clutch mechanism, the clutch mechanism comprising: a shifting block (3) capable of being driven by a handle, a clutch seat (2) capable of driving a main lock tongue to move, and a clutch member (4) capable of engaging and disengaging the shifting block (3) with the clutch seat (2);
the trigger lock tongue (9) is movably arranged and connected with the clutch piece (4);
wherein, when the trigger lock tongue (9) moves, the clutch piece (4) can be driven to move so as to combine the shifting block (3) with the clutch seat (2), and when the trigger lock tongue (9) moves into the lock shell, the shifting block (3) is combined with the clutch seat (2);
the shifting block (3) is sleeved and connected with the clutch seat (2);
the trigger lock tongue (9) is positioned at the lower side of the clutch seat (2).
2. Safety mechanism according to claim 1, characterized in that the trigger tongue (9) is movable to bring about a movement of the clutch element (4) in a direction perpendicular to the axial direction of the clutch seat (2).
3. Safety mechanism according to claim 2, characterized in that the clutch seat (2) is sheathed on the shifting block (3), the clutch element (4) being movably arranged on the clutch seat (2), the shifting block (3) having a clutch hole (301) which can cooperate with the clutch element (4).
4. A safety mechanism according to claim 3, wherein a return elastic member capable of deforming along the moving direction of the clutch member (4) is provided in the clutch seat (2), one end of the return elastic member is connected to the clutch seat (2), and the other end of the return elastic member is connected to the clutch member (4).
5. Safety mechanism according to claim 2, characterized in that the trigger bolt (9) is connected to the clutch element (4) by means of a transmission mechanism.
6. The safety mechanism according to claim 5, wherein the transmission mechanism is a wedge mechanism, an active member (11) of the wedge mechanism is connected to the trigger bolt (9), and a force member (8) of the wedge mechanism is connected to the clutch member (4).
7. The safety mechanism of claim 6, wherein,
the driving part (11) is a driving rod, and the stress part (8) is provided with a first guide groove (801) and a second guide groove (802) which is communicated with the first guide groove (801) and is arranged in a relatively inclined manner; the length direction of the second guide groove (802) is the same as the moving direction of the trigger lock tongue (9), and the second guide groove (802) and the first guide groove (801) are in sliding fit with the driving rod.
8. Safety mechanism according to claim 1, characterized in that the trigger bolt (9) is fixedly connected to the clutch element (4); when the trigger lock tongue (9) stretches out of the lock shell, the trigger lock tongue (9) drives the clutch piece (4) to move so as to separate the shifting block (3) from the clutch seat (2).
9. Safety mechanism according to any one of claims 1-8, further comprising a force storing elastic member (5);
when the shifting block (3) is in a first state, the shifting block (3) limits the clutch piece (4) to move so as to limit the shifting block (3) to be combined with the clutch seat (2), and the force storage elastic piece (5) stores driving acting force generated when the trigger lock tongue (9) moves;
when the shifting block (3) is in a second state, the shifting block (3) releases the limitation on the clutch piece (4), the force-storing elastic piece (5) releases the driving acting force, and the driving acting force drives the clutch piece (4) to move so that the shifting block (3) is combined with the clutch seat (2).
10. Safety mechanism according to claim 9, characterized in that the trigger bolt (9) is connected to the clutch element (4) by means of a transmission mechanism;
the force-storing elastic piece (5) is connected with the transmission mechanism and the clutch piece (4);
alternatively, the transmission mechanism includes: the first transmission part is connected with the trigger lock tongue (9), and the second transmission part (7) is connected with the clutch part (4); the second transmission piece (7) and the first transmission piece can move relatively, and the force storage elastic piece (5) is connected with the first transmission piece and the second transmission piece (7).
11. A lock body comprising a lock housing, characterized in that it further comprises a safety mechanism according to any one of claims 1-10, said trigger bolt (9) being movably arranged in said lock housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921032.3A CN110821286B (en) | 2018-08-14 | 2018-08-14 | Lock body and safety mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921032.3A CN110821286B (en) | 2018-08-14 | 2018-08-14 | Lock body and safety mechanism thereof |
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| Publication Number | Publication Date |
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| CN110821286A CN110821286A (en) | 2020-02-21 |
| CN110821286B true CN110821286B (en) | 2024-04-02 |
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| CN201810921032.3A Active CN110821286B (en) | 2018-08-14 | 2018-08-14 | Lock body and safety mechanism thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10890020B2 (en) * | 2016-12-29 | 2021-01-12 | Townsteel, Inc. | Double latch lockset |
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| EP2546435A2 (en) * | 2011-07-13 | 2013-01-16 | Roto Frank Ag | Lock for a window, door or similar |
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|---|---|
| CN110821286A (en) | 2020-02-21 |
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