CN215565052U - Self-latching door and lock body capable of quickly opening door - Google Patents
Self-latching door and lock body capable of quickly opening door Download PDFInfo
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- CN215565052U CN215565052U CN202120276551.6U CN202120276551U CN215565052U CN 215565052 U CN215565052 U CN 215565052U CN 202120276551 U CN202120276551 U CN 202120276551U CN 215565052 U CN215565052 U CN 215565052U
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Abstract
The utility model discloses a self-latching door and a lock body for quickly opening a door, which comprises a cover plate, a handle component, a latching component, a hook tongue component, a lining plate and a bottom box, wherein the hook tongue component comprises a hook tongue, a connecting rod and a hook tongue torsional spring; a shifting piece, a transmission plate and a transmission gear are arranged between the handle assembly and the hook tongue assembly, the shifting piece shifts down on a lower rotating piece of the handle assembly to drive the transmission plate to move upwards, and the transmission gear is meshed with an arc-shaped tooth arranged at the rear end of an upper connecting rod of the hook tongue assembly; the touch tongue assembly comprises a touch tongue, a fixed frame and a spring, wherein a boss which is matched with the groove on the transmission plate when the touch tongue extends out and is used for limiting the transmission plate to slide up and down is convexly arranged on the inner side of the fixed frame; when the door is closed in a conventional state, the hook tongue automatically extends to lock the door after the door is unlocked by the tongue-touching assembly; and in the door closing state, the handle assembly, the touch bolt assembly and the hook bolt assembly are linked to quickly open the door.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the lockset industry, in particular to a self-latching door and a lock body for quickly opening the door.
[ background of the utility model ]
The door lock is a lockset commonly used in the current home assembly, and the current mechanical anti-theft lock installed on the door is generally composed of a lock body, a square bolt component and a skew bolt component, wherein the square bolt component and the skew bolt component are installed on the lock body.
The mortise lock of the existing mechanical anti-theft lock has no mechanism that the inclined tongue triggers other tongue bodies to synchronously and automatically eject. In the existing mortise lock, the tongue body is extended to lock the door by lifting the handle or rotating the key, but the door locking process of the mechanism is complicated, and the door is easy to forget to lock.
[ Utility model ] content
In order to solve the technical difficulties, the utility model provides a self-latching door which is convenient to control and can automatically lock the door, and a one-step door opening self-latching door and a lock body for quickly opening the door.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a self-latching door and a lock body for quickly opening the door comprise a cover plate, a handle assembly, a latching assembly, a hook assembly, a lining plate and a bottom box, wherein the lining plate is arranged on the front side of the bottom box;
the handle assembly is rotatably arranged on the lower side of the bottom box and comprises an upper rotating piece, a handle shifting peach and a lower rotating piece, and the upper rotating piece and the lower rotating piece are coaxially arranged on the upper side and the lower side of the handle shifting peach respectively and are driven by the handle shifting peach to rotate;
the hook tongue component is arranged on the upper side of the bottom box and comprises a hook tongue, a connecting rod and a hook tongue torsional spring, the hook tongue is rotatably arranged on a hook tongue column arranged on the bottom box, the rear end of the connecting rod is rotatably arranged on a connecting rod column arranged on the bottom box, the front end of the connecting rod is poked through a poking pin and is connected to a pin sliding groove arranged at the rear end of the hook tongue, the hook tongue column and the connecting rod column are taken as supporting points, and the connecting rod drives the hook tongue to extend out of a lining plate on the front side of the bottom box or retract into the bottom box under the action of the hook tongue torsional spring on the connecting rod column;
a shifting piece, a transmission plate and a transmission gear which are mutually linked are arranged in a bottom box between the handle assembly and the hook tongue assembly, the shifting piece is rotatably arranged on a shifting fixed column arranged on the bottom box and is used for shifting a lower rotating piece of the handle assembly to drive the transmission plate to move upwards, the transmission gear is rotatably arranged on a gear nail arranged on the bottom box and is meshed with an arc-shaped tooth arranged at the rear end of an upper connecting rod of the hook tongue assembly, racks which are meshed and matched with the transmission gear and the shifting teeth at the tail ends of the shifting piece are respectively arranged at the upper side and the lower side of the transmission plate, and a backing plate which is attached to the outer side of the transmission plate and used for limiting the transmission plate to slide up and down in the bottom box is also arranged on the shifting fixed column and the gear nail;
the collision tongue component is arranged in a bottom box at the lower side of the hook tongue component, the collision tongue component comprises a collision tongue, a fixed frame and a spring, the collision tongue is clamped in a U-shaped clamping groove at the front end of the fixed frame, the fixed frame is attached to the outer side of the transmission plate and is transversely and slidably arranged on a frame guide post arranged on the bottom box in a left-right mode, a transverse sliding groove matched with the frame guide post is arranged on the corresponding fixed frame, the spring is arranged on a spring fixed post arranged on the rear side of the bottom box and pushes the fixed frame and the collision tongue on the front side to extend out of a lining plate, a boss matched with the transmission plate when the collision tongue extends out and used for limiting the transmission plate to slide up and down is convexly arranged on the inner side of the fixed frame, and a groove matched with the boss is arranged on the corresponding transmission plate;
when the collision tongue touches the door buckle plate on the door frame in the conventional state of closing the door, the collision tongue drives the fixed frame to retract, and the boss on the fixed frame leaves the groove on the transmission plate; the hook tongue torsion spring drives the toggle pin and the connecting rod to rotate around the connecting rod column together, the toggle pin drives the hook tongue to rotate around the hook tongue column, and the hook tongue extends out; meanwhile, the connecting rod drives the transmission gear, the transmission gear drives the transmission plate, and the transmission plate moves downwards;
rotating the handle shifting peach clockwise in a door closing state, wherein the handle shifting peach drives the lower rotating sheet, the lower rotating sheet drives the shifting sheet, and the shifting sheet drives the transmission plate; the handle shifting peach continues to rotate clockwise, meanwhile, the lower rotating sheet continues to drive the shifting sheet, the shifting sheet continues to drive the transmission plate, the transmission plate drives the transmission gear, the transmission gear drives the connecting rod and the shifting pin, the shifting pin drives the hook tongue to retract, and the door is opened at the moment;
when the latch bolt leaves the door buckle plate, the fixing frame is moved leftwards under the action of the spring force, the boss is inserted into the groove of the transmission plate, the transmission plate is locked to move, and the transmission gear and the connecting rod are also locked to rotate, so that the latch bolt cannot extend out.
Furthermore, an inclined tongue assembly positioned on the upper side of the handle assembly is further arranged in the bottom box and comprises an inclined tongue, a pull rod and a pull rod torsional spring, the inclined tongue is installed at the front end of the pull rod, the pull rod torsional spring is installed on a pull rod torsional spring fixing column arranged on the bottom box and pushes the pull rod and the inclined tongue at the front end of the pull rod to extend out of a lining plate on the front side of the bottom box;
the upper rotating piece of the handle assembly is in contact with the tail end of the pull rod after rotating and overcomes the torsion spring of the pull rod to pull the latch bolt back into the bottom box;
the upper front end part of the pull rod is provided with a convex column which is used for abutting against the left side surface of the transmission plate to limit the retraction of the latch bolt when the latch bolt extends out or abutting against the lower side surface of the transmission plate to limit the downward movement of the transmission plate when the latch bolt retracts in the direction vertical to the bottom surface of the bottom box;
when the collision tongue and the latch bolt collide with a door buckle plate on a door frame in a conventional state when the door is closed, the collision tongue drives the fixing frame to retract, and the boss on the fixing frame leaves the groove on the transmission plate; meanwhile, the inclined tongue component is retracted, when the inclined tongue is aligned with the door buckle hole, the pull rod presses the rectangular hole of the pull rod to move to the left under the action of the torsion spring of the pull rod, the pull rod component also moves to the left, the inclined tongue extends out, the convex column leaves the transmission plate, at the moment, the hook tongue torsion spring drives the toggle pin and the connecting rod to rotate around the connecting rod column, the toggle pin drives the hook tongue to rotate around the hook tongue column, and the hook tongue extends out; meanwhile, the connecting rod drives the transmission gear, the transmission gear drives the transmission plate, the transmission plate moves downwards, the transmission plate blocks the latch bolt, and the latch bolt cannot retract when being pressed, so that the function of preventing the prying latch bolt from retracting is achieved;
when the handle is closed, the handle shifting peach of the handle assembly is rotated clockwise, the handle shifting peach drives the lower rotating sheet, the lower rotating sheet drives the shifting sheet, the shifting sheet drives the transmission plate to move upwards, the transmission plate drives the transmission gear, the transmission gear drives the connecting rod and the shifting pin, the shifting pin drives the hook tongue to retract into a part, when the transmission plate leaves the second rolling sleeve, the oblique tongue is unlocked at the moment, the handle shifting peach continues to rotate clockwise, the upper rotating sheet is driven at the moment, the upper rotating sheet drives the pull rod of the oblique tongue assembly, the pull rod moves rightwards, and the oblique tongue retracts; meanwhile, the lower rotating sheet continues to drive the poking sheet, the poking sheet continues to drive the transmission plate, the transmission plate drives the transmission gear, the transmission gear drives the connecting rod and the poking pin, and the poking pin drives the hook tongue to retract, so that the door is opened.
Furthermore, the front end part of the pull rod is provided with a square hole matched with one torsion arm of the pull rod torsion spring.
Furthermore, the top end of the pull rod is provided with a T-shaped round head matched with an inner hole at the rear end of the latch bolt, and the corresponding side surface of the latch bolt is provided with a side surface hole which is used for locking and connecting the latch bolt to the T-shaped round head of the pull rod through a positioning pin.
Furthermore, the inner side and the outer side of the front end part of the pull rod are respectively provided with a convex column, and the two convex columns are respectively sleeved with a first rolling sleeve matched with a pull rod outer guide groove arranged on the cover plate and a second rolling sleeve matched with a pull rod inner guide groove arranged on the bottom box and the edge of the transmission plate.
Further, be equipped with on the last rotor plate with handle thumb peach outer end circumference cooperation, and with rotate certain angle handle thumb peach circumference and dodge four stagger angle holes of rotor plate pivoted in the drive after the dislocation, the handle thumb peach drives earlier when rotating and rotates rotor plate rotation down, drives rotor plate and lower rotor plate synchronous rotation after four stagger angle holes circumference dodge the certain angle of dislocation earlier.
The utility model has the beneficial effects that:
according to the utility model, the front end of the connecting rod of the hook tongue component is poked and connected to the rear end of the hook tongue and drives the hook tongue to extend out or retract into the bottom box under the action of the double-fulcrum and the hook tongue torsion spring; a shifting piece, a transmission plate and a transmission gear are arranged between the handle assembly and the hook tongue assembly, the shifting piece shifts down on a lower rotating piece of the handle assembly to drive the transmission plate to move upwards, and the transmission gear is meshed with an arc-shaped tooth arranged at the rear end of an upper connecting rod of the hook tongue assembly; a boss which is matched with the groove on the transmission plate when the touch tongue extends out and is used for limiting the transmission plate to slide up and down is convexly arranged on the inner side of the fixing frame of the touch tongue assembly; the front end part of the pull rod of the oblique tongue component is provided with a convex column which is used for abutting against the left side surface of the transmission plate when the oblique tongue extends out to limit the retraction of the oblique tongue, or abutting against the lower side surface of the transmission plate to limit the downward movement of the transmission plate when the oblique tongue retracts; the automatic door locking by the hook tongue after unlocking through the tongue-touching assembly is realized in the conventional state when the door is closed; after the handle assembly, the touch bolt assembly, the oblique bolt assembly and the hook bolt assembly are linked in the door closing state, the emergency state is completed, the door is opened rapidly and conveniently in the next step.
[ description of the drawings ]
FIG. 1 is a schematic illustration of the exploded structure of the body of the present invention;
FIG. 2 is an enlarged view of the fixing frame of the latch assembly of the present invention;
FIG. 3 is a schematic view of a conventional connection structure of the present invention;
FIG. 4 is a schematic view of the connection structure for the closed state of the present invention;
FIG. 5 is a schematic view of the connection structure in the open state of the present invention;
FIG. 6 is a schematic diagram of the connection outline of the present invention.
[ detailed description ] embodiments
A lock body for self-latching doors and quick-opening doors is shown in figures 1 to 6 and comprises a cover plate 1, a handle assembly 2, an oblique bolt assembly 3, a latch assembly 4, a hook bolt assembly 5, a lining plate 6 and a bottom box 7, wherein the lining plate 6 is arranged on the front side of the bottom box 7; the handle assembly 2 is rotatably mounted at the lower side of the bottom box 7, the handle assembly 2 comprises an upper rotating piece 20, a handle shifting peach 21 and a lower rotating piece 22, and the upper rotating piece 20 and the lower rotating piece 22 are coaxially mounted at the upper side and the lower side of the handle shifting peach 21 respectively and are driven by the handle shifting peach 21 to rotate; last rotor plate 20 be equipped with handle thumb peach 21 outer end circumference cooperation, and with rotate certain angle handle thumb peach circumference dodge dislocation back drive rotor plate 20 pivoted four stagger angle holes 200, handle thumb peach 21 drives earlier when rotating that rotor plate 22 rotates, drives rotor plate 20 and lower rotor plate 22 synchronous rotation after dodging certain angle of dislocation again four stagger angle hole 200 circumference.
The hook tongue component 5 is arranged on the upper side of the bottom box 7, the hook tongue component 5 comprises a hook tongue 50, a connecting rod 51 and a hook tongue torsion spring 52, the hook tongue 50 is rotatably installed on a hook tongue column 53 arranged on the bottom box 7, the rear end of the connecting rod 51 is rotatably installed on a connecting rod column 54 arranged on the bottom box 7, the front end of the connecting rod 51 is poked and connected in a pin sliding groove 500 arranged at the rear end of the hook tongue 50 through a poking pin 55, the connecting rod 51 takes the hook tongue column 53 and the connecting rod column 54 as a fulcrum, and under the action of the hook tongue torsion spring 52 on the connecting rod column 54, the connecting rod 51 drives the hook tongue 50 to extend out of a lining plate 6 at the front side of the bottom box 7 or retract into the bottom box 7.
Continuing as shown in fig. 1 to fig. 6, a bottom box 7 between the handle assembly 2 and the hook tongue assembly 5 is internally provided with a toggle piece 8, a transmission plate 9 and a transmission gear 10 which are linked with each other, the toggle piece 8 is rotatably installed on a toggle fixing column 80 arranged on the bottom box 7 and toggles the lower driving transmission plate 9 to move upwards on a lower rotating piece 22 of the handle assembly 2, the transmission gear 10 is rotatably installed on a gear nail 100 arranged on the bottom box 7 and is meshed with an arc-shaped tooth 510 arranged at the rear end of an upper connecting rod 51 of the hook tongue assembly 5, the upper side and the lower side of the transmission plate 9 are respectively provided with an upper rack 90 and a lower rack 91 which are meshed with the transmission gear 10 and a toggle tooth 81 arranged at the tail end of the toggle piece 8, and a backing plate 11 which is arranged outside the joint transmission plate 9 and is used for limiting the transmission plate 9 to slide up and down in the bottom box 7 is further installed on the toggle fixing column 80 and the gear nail 100.
As shown in fig. 1 to 6, the latch assembly 4 is installed in the bottom box 7 below the latch hook assembly 5, the latch assembly 4 includes a latch 40, a fixing frame 41 and a spring 42, the latch 40 is inserted into a U-shaped slot 410 at the front end of the fixing frame 41, the fixing frame 41 is attached to the outer side of the transmission plate 9 and is installed on the frame guide post 12 of the bottom box 7 in a left-right lateral sliding manner, a lateral sliding slot 411 matched with the frame guide post 12 is provided on the corresponding fixing frame 41, the spring 42 is installed on the spring fixing post 13 provided at the rear side of the bottom box 7 and pushes the fixing frame 41 and the latch 40 at the front side to extend out of the lining plate 6, a boss 14 matched with the transmission plate 9 when the latch 40 extends out is provided in the inner side of the fixing frame 41 in a protruding manner to limit the vertical sliding of the transmission plate 9, and a groove 92 matched with the boss 14 is provided on the corresponding transmission plate 9.
As shown in fig. 1 to 6, the latch bolt assembly 3 is disposed on the upper side of the handle assembly 2 in the bottom case 7, the latch bolt assembly 3 includes a latch bolt 30, a pull rod 31 and a pull rod torsion spring 32, the latch bolt 30 is mounted at the front end of the pull rod 31, the pull rod torsion spring 32 is mounted on a pull rod torsion spring fixing column 33 disposed on the bottom case 7 and pushes the pull rod 31 and the latch bolt 30 at the front end thereof to extend out of the lining board 6 at the front side of the bottom case 7; the upper rotating piece 20 of the handle assembly 2 is in contact with the tail end of the pull rod 31 after rotating, and overcomes the pull rod torsion spring 32 to pull the latch bolt 30 back into the bottom box 7; the front end part of the pull rod 31 is provided with a square hole 310 matched with one torque arm of the pull rod torsion spring 32, the top end of the pull rod 31 is provided with a T-shaped round head 311 matched with an inner hole at the rear end of the latch bolt 30, and the corresponding side surface of the latch bolt 30 is provided with a side surface hole 300 for tightly locking and connecting the latch bolt 30 to the T-shaped round head 311 of the pull rod 31 through the positioning pin 15; the inner side and the outer side of the upper front end part of the pull rod 31 are respectively provided with a convex column 16 which is used for abutting against the left side surface of the transmission plate 9 when the latch bolt 30 extends out and limiting the latch bolt 30 to withdraw or abutting against the lower side surface of the transmission plate 9 when the latch bolt 30 withdraws and limiting the transmission plate 9 to move downwards, and the two convex columns 16 are respectively sleeved with a first rolling sleeve 17 matched with a pull rod outer guide groove 160 arranged on the cover plate 1 and a second rolling sleeve 18 matched with a pull rod inner guide groove 161 arranged on the bottom box 7 and the edge of the transmission plate 9.
When the door is closed in a conventional state, when the latch bolt 40 and the latch bolt 30 touch a door buckle plate (not shown) on the door frame, the latch bolt 40 drives the fixing frame 41 to retract, and the boss 14 on the fixing frame 41 leaves the groove on the transmission plate 9; meanwhile, the latch bolt component 3 (the latch bolt 30, the pull rod 31 and the second roller 18) is also retracted; when the latch tongue 30 is aligned with the door buckle hole, the pull rod 31 presses the rectangular hole of the pull rod 31 to move to the left under the action of the pull rod torsion spring 32, the pull rod 31 component also moves to the left, the latch tongue 30 extends, the second rolling sleeve 18 sleeved on the convex column leaves the transmission plate 9, at this time, the latch tongue torsion spring 52 drives the toggle pin 55 and the connecting rod 51 to rotate around the connecting rod column 54, the toggle pin 55 drives the latch tongue 50 to rotate around the latch tongue column 53, and the latch tongue 50 extends out; meanwhile, the connecting rod 51 drives the transmission gear 10, the transmission gear 10 drives the transmission plate 9, the transmission plate 9 moves downwards, the transmission plate 9 blocks the inclined tongue 30, and the inclined tongue 30 cannot retract when being pressed, so that the function of preventing the inclined tongue 30 from retracting is achieved.
When the handle shifting peach 21 of the handle assembly 2 is rotated clockwise in a door closing state, the handle shifting peach 21 drives the lower rotating sheet 22, the lower rotating sheet 22 drives the shifting sheet 8, the shifting sheet 8 drives the transmission plate 9 to move upwards, the transmission plate 9 leaves the oblique bolt 30, the transmission plate 9 drives the transmission gear 10, the transmission gear 10 drives the connecting rod 51 and the shifting pin 55, the shifting pin 55 drives the hook bolt 50 to retract to a part, when the transmission plate 9 leaves the second rolling sleeve 18, the oblique bolt 30 is unlocked at this time, the handle shifting peach 21 continues to rotate clockwise, the upper rotating sheet 20 is driven at this time, the upper rotating sheet 20 drives the pull rod 31 of the oblique bolt assembly 3, the pull rod 31 moves rightwards, and the oblique bolt 30 retracts; meanwhile, the lower rotating plate 22 continues to drive the poking plate 8, the poking plate 8 continues to drive the transmission plate 9, the transmission plate 9 drives the transmission gear 10, the transmission gear 10 drives the connecting rod 51 and the poking pin 55, and the poking pin 55 drives the hook tongue 50 to retract, so that the one-step quick door opening of the rotating handle assembly 2 is realized.
When the latch 40 leaves the buckle plate, the fixing frame 41 is moved leftwards under the action of the spring 42, the boss 14 on the inner side of the fixing frame 41 is inserted into the groove 92 of the transmission plate 9, the transmission plate 9 is locked to move, and the transmission gear 10 and the connecting rod 51 are also locked to rotate, so that the latch 50 cannot extend out.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, and all equivalent changes in shape, structure and principle of the utility model should be covered by the protection scope of the present invention.
Claims (6)
1. A self-latching door and a lock body for quickly opening the door comprise a cover plate, a handle assembly, a latching assembly, a hook assembly, a lining plate and a bottom box, wherein the lining plate is arranged on the front side of the bottom box; the method is characterized in that:
the handle assembly is rotatably arranged on the lower side of the bottom box and comprises an upper rotating piece, a handle shifting peach and a lower rotating piece, and the upper rotating piece and the lower rotating piece are coaxially arranged on the upper side and the lower side of the handle shifting peach respectively and are driven by the handle shifting peach to rotate;
the hook tongue component is arranged on the upper side of the bottom box and comprises a hook tongue, a connecting rod and a hook tongue torsional spring, the hook tongue is rotatably arranged on a hook tongue column arranged on the bottom box, the rear end of the connecting rod is rotatably arranged on a connecting rod column arranged on the bottom box, the front end of the connecting rod is poked through a poking pin and is connected to a pin sliding groove arranged at the rear end of the hook tongue, the hook tongue column and the connecting rod column are taken as supporting points, and the connecting rod drives the hook tongue to extend out of a lining plate on the front side of the bottom box or retract into the bottom box under the action of the hook tongue torsional spring on the connecting rod column;
a shifting piece, a transmission plate and a transmission gear which are mutually linked are arranged in a bottom box between the handle assembly and the hook tongue assembly, the shifting piece is rotatably arranged on a shifting fixed column arranged on the bottom box and is used for shifting a lower rotating piece of the handle assembly to drive the transmission plate to move upwards, the transmission gear is rotatably arranged on a gear nail arranged on the bottom box and is meshed with an arc-shaped tooth arranged at the rear end of an upper connecting rod of the hook tongue assembly, racks which are meshed and matched with the transmission gear and the shifting teeth at the tail ends of the shifting piece are respectively arranged at the upper side and the lower side of the transmission plate, and a backing plate which is attached to the outer side of the transmission plate and used for limiting the transmission plate to slide up and down in the bottom box is also arranged on the shifting fixed column and the gear nail;
the collision tongue component is arranged in a bottom box at the lower side of the hook tongue component, the collision tongue component comprises a collision tongue, a fixed frame and a spring, the collision tongue is clamped in a U-shaped clamping groove at the front end of the fixed frame, the fixed frame is attached to the outer side of the transmission plate and is transversely and slidably arranged on a frame guide post arranged on the bottom box in a left-right mode, a transverse sliding groove matched with the frame guide post is arranged on the corresponding fixed frame, the spring is arranged on a spring fixed post arranged on the rear side of the bottom box and pushes the fixed frame and the collision tongue on the front side to extend out of a lining plate, a boss matched with the transmission plate when the collision tongue extends out and used for limiting the transmission plate to slide up and down is convexly arranged on the inner side of the fixed frame, and a groove matched with the boss is arranged on the corresponding transmission plate;
when the collision tongue touches the door buckle plate on the door frame in the conventional state of closing the door, the collision tongue drives the fixed frame to retract, and the boss on the fixed frame leaves the groove on the transmission plate; the hook tongue torsion spring drives the toggle pin and the connecting rod to rotate around the connecting rod column together, the toggle pin drives the hook tongue to rotate around the hook tongue column, and the hook tongue extends out; meanwhile, the connecting rod drives the transmission gear, the transmission gear drives the transmission plate, and the transmission plate moves downwards;
rotating the handle shifting peach clockwise in a door closing state, wherein the handle shifting peach drives the lower rotating sheet, the lower rotating sheet drives the shifting sheet, and the shifting sheet drives the transmission plate; the handle shifting peach continues to rotate clockwise, meanwhile, the lower rotating sheet continues to drive the shifting sheet, the shifting sheet continues to drive the transmission plate, the transmission plate drives the transmission gear, the transmission gear drives the connecting rod and the shifting pin, the shifting pin drives the hook tongue to retract, and the door is opened at the moment;
when the latch bolt leaves the door buckle plate, the fixing frame is moved leftwards under the action of the spring force, the boss is inserted into the groove of the transmission plate, the transmission plate is locked to move, and the transmission gear and the connecting rod are also locked to rotate, so that the latch bolt cannot extend out.
2. The lock body of claim 1, wherein the bottom box is further provided with a latch bolt assembly at the upper side of the handle assembly, the latch bolt assembly comprises a latch bolt, a pull rod and a pull rod torsion spring, the latch bolt is mounted at the front end of the pull rod, the pull rod torsion spring is mounted on a fixed column of the pull rod torsion spring arranged on the bottom box and pushes the pull rod and the latch bolt at the front end of the pull rod to extend out of the lining plate at the front side of the bottom box;
the upper rotating piece of the handle assembly is in contact with the tail end of the pull rod after rotating and overcomes the torsion spring of the pull rod to pull the latch bolt back into the bottom box;
the upper front end part of the pull rod is provided with a convex column which is used for abutting against the left side surface of the transmission plate to limit the retraction of the latch bolt when the latch bolt extends out or abutting against the lower side surface of the transmission plate to limit the downward movement of the transmission plate when the latch bolt retracts in the direction vertical to the bottom surface of the bottom box;
when the collision tongue and the latch bolt collide with a door buckle plate on a door frame in a conventional state when the door is closed, the collision tongue drives the fixing frame to retract, and the boss on the fixing frame leaves the groove on the transmission plate; meanwhile, the inclined tongue component is retracted, when the inclined tongue is aligned with the door buckle hole, the pull rod presses the rectangular hole of the pull rod to move to the left under the action of the torsion spring of the pull rod, the pull rod component also moves to the left, the inclined tongue extends out, the convex column leaves the transmission plate, at the moment, the hook tongue torsion spring drives the toggle pin and the connecting rod to rotate around the connecting rod column, the toggle pin drives the hook tongue to rotate around the hook tongue column, and the hook tongue extends out; meanwhile, the connecting rod drives the transmission gear, the transmission gear drives the transmission plate, the transmission plate moves downwards, the transmission plate blocks the latch bolt, and the latch bolt cannot retract when being pressed, so that the function of preventing the prying latch bolt from retracting is achieved;
when the handle is closed, the handle shifting peach of the handle assembly is rotated clockwise, the handle shifting peach drives the lower rotating sheet, the lower rotating sheet drives the shifting sheet, the shifting sheet drives the transmission plate to move upwards, the transmission plate drives the transmission gear, the transmission gear drives the connecting rod and the shifting pin, the shifting pin drives the hook tongue to retract into a part, when the transmission plate leaves the second rolling sleeve, the oblique tongue is unlocked at the moment, the handle shifting peach continues to rotate clockwise, the upper rotating sheet is driven at the moment, the upper rotating sheet drives the pull rod of the oblique tongue assembly, the pull rod moves rightwards, and the oblique tongue retracts; meanwhile, the lower rotating sheet continues to drive the poking sheet, the poking sheet continues to drive the transmission plate, the transmission plate drives the transmission gear, the transmission gear drives the connecting rod and the poking pin, and the poking pin drives the hook tongue to retract, so that the door is opened.
3. The self-latching door and lock body for quick opening as claimed in claim 2, wherein said pull rod is formed with a square hole at a front end thereof for engaging with a torsion arm of a torsion spring of the pull rod.
4. The self-latching door and lock body for quick opening of claim 2, wherein the top end of the pull rod is provided with a T-shaped round head engaged with the inner hole at the rear end of the latch bolt, and the corresponding side of the latch bolt is provided with a side hole for locking and connecting the latch bolt to the T-shaped round head of the pull rod through a positioning pin.
5. A lock body of self-latching door and quick-opening door as claimed in claim 2, wherein the inner and outer sides of the front end of the pull rod are respectively provided with a convex post, and the two convex posts are respectively sleeved with a first rolling sleeve matched with the pull rod outer guide groove provided on the cover plate and a second rolling sleeve matched with the pull rod inner guide groove provided on the bottom case and the edge of the transmission plate.
6. The lock body of claim 1, wherein the upper rotor has four staggered-angle bores that are circumferentially matched with the outer end of the handle thumb peach and circumferentially avoid and dislocate the handle thumb peach by a certain angle, and then drive the upper rotor to rotate, and when the handle thumb peach rotates, the lower rotor is first driven to rotate, and then the upper rotor and the lower rotor are driven to rotate synchronously after circumferentially avoiding and dislocating the handle thumb peach by a certain angle through the four staggered-angle bores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276551.6U CN215565052U (en) | 2021-01-29 | 2021-01-29 | Self-latching door and lock body capable of quickly opening door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120276551.6U CN215565052U (en) | 2021-01-29 | 2021-01-29 | Self-latching door and lock body capable of quickly opening door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215565052U true CN215565052U (en) | 2022-01-18 |
Family
ID=79837821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120276551.6U Active CN215565052U (en) | 2021-01-29 | 2021-01-29 | Self-latching door and lock body capable of quickly opening door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215565052U (en) |
-
2021
- 2021-01-29 CN CN202120276551.6U patent/CN215565052U/en active Active
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