Door lock with rotary switch button
Technical Field
The invention relates to the technical field of locks, in particular to a door lock with a rotary switch button.
Background
In order to facilitate the use of the door lock in the prior art, a knob is usually arranged on one side in the door, the door lock is quickly unlocked by rotating the knob, a key is not required to be inserted, but the safety is often reduced due to the convenience of unlocking, and particularly the door lock is easy to be opened by a young child privately and then is out of a house. In order to improve the safety performance of the door lock, the invention provides the door lock with the rotary switch button so as to enhance the safety performance of the door lock.
Disclosure of Invention
In order to solve the problems, the invention provides a door lock with a rotary switch button, which has high safety.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a lock with rotate shift knob, includes the shell and sets up in the shell and be used for driving the spring bolt to unblank or the plectrum of locking, the outside of shell is provided with can drive the plectrum pivoted knob, the plectrum is connected with the canceling release mechanical system who drives its reduction, be provided with between shell and the knob and be used for prescribing a limit to knob pivoted switch mechanism, thereby make under the natural state the knob is in the locking state and can't drive the plectrum rotates together.
The switch mechanism is further defined as comprising a key arranged on the knob, a first limit groove with an opening facing the knob is arranged on the shell, a second limit groove communicated with the first limit groove after the knob is assembled is arranged corresponding to the first limit groove, the switch mechanism further comprises a limit column and a first reset spring which are arranged in the first limit groove, the limit column is clamped between the first limit groove and the second limit groove under the pushing of the elastic force of the first reset spring so that the knob can not rotate in a locking state, the key drives the limit column to withdraw from the second limit groove when being pressed down so that the knob can rotate in an unlocking state, and a second reset spring which drives the key to reset is arranged in the knob.
The rotary knob is further limited in that a mounting portion is formed on one side, facing the knob, of the outer shell in a protruding mode, a first through hole is formed in the mounting portion, a connecting portion capable of being inserted into the first through hole is arranged on the knob, the connecting portion penetrates through the first through hole and then is fixedly connected with the poking and dragging device, the first limiting groove is formed in the mounting portion and located on the outer side of the first through hole, and the second limiting groove is arranged on the outer side of the connecting portion corresponding to the first limiting groove.
The switch mechanism is further defined as the preferred implementation mode, the switch mechanism further comprises a pushing column arranged in the second limit groove, the key is arranged on the outer side of the knob, the pressing direction of the key is perpendicular to the moving direction of the limit column, a pressing notch which is vertically communicated with the second limit groove is further arranged in the knob, one side, away from the limit column, of the pushing column is provided with an inclined surface facing the key, the key is provided with a pushing part which can pass through the pressing notch and is propped against the inclined surface, the second reset spring is sleeved on the pushing part, when the key is pressed, the pushing part pushes the pushing column to move towards the limit column through the inclined surface so that the limit column exits the second limit groove, one side, facing the knob, of the limit column is a ball head, and when the pushing column faces the end face of the limit column to be flush with a notch of the second limit groove, the knob is in an unlocking state.
The knob is further limited to be mainly composed of a knob shell and a knob cover body covering the front end of the knob shell, the second limiting groove, the connecting portion and the pressing notch are respectively arranged on the knob shell, a key notch for enabling the key to slide up and down is arranged on the outer side of the knob shell, an outwards protruding limiting block is arranged on the outer side of the key, and the limiting block abuts against the inner side edge of the key notch after assembly.
The preferred embodiment is further defined as that a threaded hole is formed in the connecting portion, and the connecting portion is connected with the poking towing through screw threads.
The preferred implementation mode is further defined as that the front end of the connecting part is convexly provided with an inserting key, and the poking towing is provided with an inserting groove matched with the inserting key.
The spring locking device is characterized in that a first poking part for poking the lock tongue is arranged at one end of the poking part, a second poking part matched with the first poking part is symmetrically arranged at the other end of the poking part, the reset mechanism comprises a limiting piece hinged in the shell, one end of the limiting piece is propped against the outer side of the poking part, a first spring column is arranged at the other end of the limiting piece, a second spring column is further arranged in the shell, the reset mechanism further comprises a reset spring, one end of the reset spring is sleeved on the first spring column, and the other end of the reset spring is sleeved on the second spring column.
The door lock has the beneficial effects that the door lock cannot be directly twisted by adding the switch mechanism on the knob, and the knob can be rotated only by pressing the switch when the door is opened, so that the safety performance of the door lock is effectively enhanced, and the door lock is prevented from being privately opened by young children.
Drawings
FIG. 1 is a schematic illustration of one of the structures of the present invention;
FIG. 2 is an exploded schematic view of the invention;
FIG. 3 is a cross-sectional view of the invention;
FIG. 4 is an enlarged cross-sectional view at A in FIG. 3;
FIG. 5 is a schematic view of the structure of the knob;
FIG. 6 is an exploded schematic view of the knob;
FIG. 7 is a schematic structural view of a knob housing;
FIG. 8 is a schematic diagram of a key structure;
FIG. 9 is a schematic view of the structure of a dip;
FIG. 10 is a second schematic diagram of the structure of the present invention.
Detailed Description
The invention is further described in detail below with reference to the attached drawings and detailed description:
As shown in fig. 1 and fig. 2, a door lock with a rotary switch button comprises a shell 1 and a pulling 3 arranged in the shell 1 and used for driving a lock tongue 2 to unlock or lock, wherein a knob 4 capable of driving the pulling 3 to rotate is arranged on the outer side of the shell 1, the pulling 3 is connected with a reset mechanism for driving the pulling 3 to reset, a switch mechanism used for limiting the knob 4 to rotate is arranged between the shell 1 and the knob 4, so that the knob 4 is in a locking state in a natural state and cannot drive the pulling 3 to rotate together, the switch mechanism is additionally arranged on the knob, so that the pulling 3 cannot be directly twisted, and the knob can be rotated by pressing a switch when the door is opened, thereby effectively enhancing the safety performance of the door lock and preventing a child from privately unlocking the door lock.
In this embodiment, as shown in fig. 3 and fig. 4, the switch mechanism includes a key 5 disposed on the knob 4, a first limit groove 11 with an opening facing the knob 4 is disposed on the housing 1, a second limit groove 41 corresponding to the first limit groove 11 and communicating with the first limit groove 11 after assembly is disposed on the knob 4, and the switch mechanism further includes a limit post 6 and a first return spring 7 disposed in the first limit groove 11, where the limit post 6 is clamped between the first limit groove 11 and the second limit groove 41 under the urging of the spring force of the first return spring 7, so that the knob 4 is in a locked state, and the knob 4 is locked with the housing 1 by the limit post 6. When the key 5 is pressed, the key 5 drives the limit post 6 to withdraw from the second limit groove 41 so that the knob 4 can rotate in an unlocking state, a second reset spring 8 for driving the key 5 to reset is arranged in the knob 4, and the push-type unlocking is realized through the key 5, so that the push-type unlocking device is simple in structure and convenient to use.
In order to ensure the assembly space and improve the assembly precision, the mounting portion 12 is formed on one side of the housing 1 facing the knob 4 in a protruding manner, a first through hole 13 is provided in the mounting portion 12, the knob 4 is provided with a connecting portion 42 capable of being inserted into the first through hole 13, the connecting portion 42 passes through the first through hole 13 and then is fixedly connected with the pulling member 3, in the prior art, various manners of fixing connection, such as threaded connection, snap connection, welding, riveting and the like, in this embodiment, threaded connection is preferred, and the assembly is simple. The first limiting groove 11 is disposed on the mounting portion 12 and located outside the first through hole 13, and the second limiting groove 41 is disposed outside the connecting portion 42 corresponding to the first limiting groove 11.
Furthermore, in order to be more beneficial to unlocking by a user, the switch mechanism further comprises a pushing post 9 arranged in the second limiting groove 41, the key 5 is arranged on the outer side of the knob 4, the pressing direction of the key 5 is perpendicular to the moving direction of the limiting post 6, and when the switch mechanism is more beneficial to being used, the palm holds the knob 4 and simultaneously presses the key 5 to unlock. The knob 4 is further internally provided with a pressing notch 43 vertically communicated with the second limit groove 41, one side of the pushing column 9, which is away from the limit column 6, is provided with an inclined plane 91 facing the key 5, as shown in fig. 8, the key 5 is provided with a pushing part 51 which can pass through the pressing notch 43 and is propped against the inclined plane 91, the second return spring 8 is sleeved on the pushing part 51, when the key 5 is pressed, the pushing part 51 pushes the pushing column 9 to move towards the limit column 6 through the inclined plane 91 so that the limit column 6 is retracted out of the second limit groove 41, and the transmission conversion of the 90-degree direction of force is realized through the inclined plane 91 of the pushing column 9, so that the structure is simple and the design is ingenious. The side of the limiting column 6 facing the knob 4 is provided with a ball head, so that the mechanical locking can be prevented, and the knob 4 can be rotated more conveniently. The knob 4 is in an unlocked state when the end face of the pushing post 9 facing the limit post 6 is flush with the notch of the second limit groove 41.
In order to further disclose the structure of the knob 4 and more clearly disclose the assembly relationship between each part and the knob 4, as shown in fig. 5 and 6, the knob 4 is mainly composed of a knob housing 401 and a knob cover 402 covering the front end of the knob housing 401, the second limiting groove 41, the connecting portion 42 and the pressing notch 43 are respectively disposed on the knob housing 401, a key notch 403 for allowing the key 5 to slide up and down is disposed on the outer side of the knob housing 401, a limiting block 52 protruding outwards is disposed on the outer side of the key 5, as shown in fig. 8, the limiting block 52 abuts against the inner side edge of the key notch 403 after assembly, and plays a limiting role on the key 5, so as to prevent the key 5 from being ejected out of the knob 4 under the elastic action of the second reset spring 8. In this embodiment, a protrusion 46 is disposed on a side of the knob cover 402 facing the knob housing 401, and the protrusion 46 is inserted into the second limiting groove 41 after assembly, so as to limit the pushing post 9. The knob shell 401 and the knob cover 402 are fixed through threaded connection.
In this embodiment, a threaded hole 44 is provided in the connecting portion 42, and the connecting portion 42 is screwed with the dial 3 by a screw 100. Further, the screw 100 is a cross-head screw of the prior art. In order to facilitate the knob 4 to drive the poking and dragging 3 to rotate, the front end of the connecting portion 42 is convexly provided with an inserting key 45, the poking and dragging 3 is provided with a slot 31 matched with the inserting key 45, when the poking and dragging 3 is assembled, the connecting portion 42 passes through the first through hole 13, then the inserting key 45 is inserted into the slot 31, and the screw 100 passes through the slot 31 and then is in threaded connection with the threaded hole 44, so that the structure is simple and the design is ingenious.
As shown in fig. 9 and 10, a first poking part 32 for poking the lock tongue 2 is arranged at one end of the poking part 3, a second poking part 33 matched with the first poking part 32 is symmetrically arranged at the other end of the poking part 3, the reset mechanism comprises a limiting piece 10 hinged in the shell 1, and one end of the limiting piece 10 is propped against the outer side of the poking part 3 and simultaneously propped against the outer sides of the first poking part 32 and the second poking part 33. The other end of the limiting piece 10 is provided with a first spring column 101, a second spring column 102 is further arranged in the shell 1, the reset mechanism further comprises a reset spring 103, one end of the reset spring 103 is sleeved on the first spring column 101, and the other end of the reset spring 103 is sleeved on the second spring column 102. When the knob 4 drives the poking and dragging 3 to rotate, the poking and dragging 3 also drives the limiting piece 10 to rotate, meanwhile, the limiting piece 10 stretches the return spring 103, after the unlocking is finished, the return spring 103 pulls the limiting piece 10 to reset, meanwhile, the limiting piece 10 pushes the poking and dragging 3 to rotate and reset, and the knob 4 rotates and resets along with the poking and dragging, so that the structure is simple, and the design is ingenious.