CN111691748A

CN111691748A - Escape door lock

Info

Publication number: CN111691748A
Application number: CN202010483685.5A
Authority: CN
Inventors: 莫耀祥
Original assignee: Jiangmen Camax Hardware Corp ltd
Current assignee: Jiangmen Camax Hardware Corp ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-09-22

Abstract

The invention discloses an escape door lock, comprising: the bolt module comprises an inclined bolt piece and a square bolt piece; the unlocking module comprises an inner handle thumb wheel, an outer handle thumb wheel, an oblique tongue thumb wheel, a square tongue thumb wheel, a key core piece, a first elastic piece and a second elastic piece, wherein the inner handle thumb wheel is respectively abutted with the oblique tongue thumb wheel and the square tongue thumb wheel, the outer handle thumb wheel is abutted with the oblique tongue thumb wheel, the key core piece is used for respectively driving the square tongue piece and the oblique tongue thumb wheel to move, the oblique tongue thumb wheel is abutted with the oblique tongue piece, the square tongue thumb wheel is abutted with the square tongue piece, the first elastic piece is respectively connected with the inner handle thumb wheel and the outer handle thumb wheel, and the second elastic piece is connected with the oblique tongue thumb wheel; the lock shell is provided with the lock tongue module and two sets of unlocking modules, and the unlocking modules are arranged on two sides of the lock tongue module.

Description

Escape door lock

Technical Field

The invention relates to the technical field of locks, in particular to an escape door lock.

Background

The safety exit is always puzzled by security management and fire control management, from the perspective of security and precaution, the firmer and better the exit lock is, and from the perspective of accident escape, the more unblocked and more effective the safety channel is, and the more closed the safety door lock is, the greater the danger of accident escape, according to statistics, the more casualty fire accidents are caused, and most of the accidents are caused by the locking of the safety exit or the unsmooth escape channel; therefore, the control problem of the exit has been widely paid attention to by fire-fighting technicians and managers in intensive places, and the research on the exit management has never been interrupted, in recent years, various escape door locks have been developed in domestic and abroad, but the common escape door lock only has one key core piece and one door handle, once the key core piece or the door handle module is damaged, only one escape door lock can be replaced, and meanwhile, the user cannot set the turning direction of the escape door lock according to the own requirements due to the structure of the escape door lock and the position of the door lock of the door frame.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an escape door lock, which can be replaced by another set of key core pieces and a door handle module when one set of key core pieces or the door handle module of the escape door lock is damaged, and meanwhile, a user can select the rotating direction of an escape door handle according to own requirements.

An escape door lock according to an embodiment of the first aspect of the present invention includes:

the bolt module comprises an inclined bolt piece and a square bolt piece;

the unlocking module comprises an inner handle thumb wheel, an outer handle thumb wheel, an oblique tongue thumb wheel, a square tongue thumb wheel, a key core piece, a first elastic piece and a second elastic piece, wherein the inner handle thumb wheel is respectively abutted with the oblique tongue thumb wheel and the square tongue thumb wheel, the outer handle thumb wheel is abutted with the oblique tongue thumb wheel, the key core piece is used for respectively driving the square tongue piece and the oblique tongue thumb wheel to move, the oblique tongue thumb wheel is abutted with the oblique tongue piece, the square tongue thumb wheel is abutted with the square tongue piece, the first elastic piece is respectively connected with the inner handle thumb wheel and the outer handle thumb wheel, and the second elastic piece is connected with the oblique tongue thumb wheel;

the lock shell is provided with the spring bolt module and the two sets of unlocking modules, and the unlocking modules are arranged on two sides of the spring bolt module.

The escape door lock disclosed by the embodiment of the invention has at least the following beneficial effects: the inner handle thumb wheel is respectively abutted with the latch bolt thumb wheel and the square bolt thumb wheel, so that the inner handle thumb wheel can simultaneously control the latch bolt and the square bolt to be locked in the lock shell, a user can rapidly open the door through the inner handle, the outer handle thumb wheel is only abutted with the latch bolt thumb wheel, therefore, the outer handle thumb wheel can only control the latch bolt to be retracted into the lock shell, thereby improving the anti-theft performance of the door lock, the key core piece can control the movement of the latch bolt dial wheel through the transmission piece, and can directly control the movement of the square bolt piece, the first elastic piece can reset the inner handle thumb wheel and the outer handle thumb wheel, the second elastic piece can reset the oblique bolt thumb wheel, two sets of unlocking modules are arranged in the lock shell, when one of the unlocking modules is damaged, the user can install the door handle on the other unlocking module, and the unlocking modules are arranged on two sides of the bolt module, so that the steering directions of the two groups of unlocking modules are opposite, and a user can adjust the unlocking direction of the escape door handle by selecting one unlocking module.

According to some embodiments of the invention, the lock shell is provided with a limit pin, the oblique tongue piece is provided with a U-shaped groove matched with the limit pin, and the square tongue piece is provided with a sliding groove matched with the limit pin.

According to some embodiments of the invention, the latch member is provided with a first groove, and the latch thumbwheel is provided with a first protrusion which is matched with the first groove.

According to some embodiments of the invention, the deadbolt module further comprises a transmission member abutting the key core member and the deadbolt wheel, respectively.

According to some embodiments of the invention, the key core member is provided with a second protrusion and a third protrusion, the square tongue member is provided with a second recess cooperating with the second protrusion, the transmission member is provided with a protrusion cooperating with the third protrusion, and the key core member is adapted to drive the latch kick wheel to rotate through the transmission member when the third protrusion abuts against the protrusion.

According to some embodiments of the invention, the two sets of unlocking modules are symmetrically distributed along the symmetry axis of the oblique tongue piece.

According to some embodiments of the invention, the first resilient member is connected to the latch wheel.

According to some embodiments of the invention, the second resilient member abuts the tongue member.

According to some embodiments of the invention, the lock housing is provided with an adjustment screw, which abuts the latch kick wheel.

According to some embodiments of the invention, the lock housing is provided with a positioning member abutting a side surface of the first resilient member.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an escape door lock according to an embodiment of the present invention in the direction of the outside of the door;

FIG. 2 is a schematic view of an escape door lock according to an embodiment of the present invention shown in an inboard orientation;

fig. 3 is a schematic structural view of an escape door lock according to an embodiment of the present invention.

A slanting tongue piece 110, a U-shaped groove 111, a first groove 112,

A square tongue piece 120, a sliding chute 121, a second groove 122,

A transmission member 130, a projection 131,

An inner handle thumb wheel 210, an outer handle thumb wheel 220,

A latch poke wheel 230, a first protrusion 231,

A square bolt dial wheel 240,

A spoon core 250, a second projection 251, a third projection 252,

A first elastic member 260, a second elastic member 270,

Lock shell 300, spacer pin 310, adjusting screw 320, locating part 330.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 2, an escape door lock according to the present invention includes:

the bolt module comprises an inclined bolt piece 110 and a square bolt piece 120;

the unlocking module comprises an inner handle thumb wheel 210, an outer handle thumb wheel 220, an oblique tongue thumb wheel 230, a square tongue thumb wheel 240, a key core piece 250, a first elastic piece 260 and a second elastic piece 270, wherein the inner handle thumb wheel 210 is respectively abutted with the oblique tongue thumb wheel 230 and the square tongue thumb wheel 240, the outer handle thumb wheel 220 is abutted with the oblique tongue thumb wheel 230, the key core piece 250 is used for respectively driving the square tongue piece 120 and the oblique tongue thumb wheel 230 to move, the oblique tongue thumb wheel 230 is abutted with the oblique tongue piece 110, the square tongue thumb wheel 240 is abutted with the square tongue piece 120, the first elastic piece 260 is respectively connected with the inner handle thumb wheel 210 and the outer handle thumb wheel 220, and the second elastic piece 270 is connected with the oblique tongue thumb wheel 230;

the lock shell 300 is provided with a bolt module and two unlocking modules, and the unlocking modules are arranged on two sides of the bolt module, wherein the bolt module and the two unlocking modules are arranged on the lock shell 300.

In some embodiments, the first elastic element 260 and the second elastic element 270 are springs or spring plate structures, in this embodiment, the first elastic element 260 adopts a spring structure, and the second elastic element 270 adopts a spring plate structure; in some embodiments, the dead bolt piece 120 is provided with one or two dead bolts, in this embodiment, the dead bolt piece 120 is provided with two dead bolts 121, and the two dead bolts 121 can improve the anti-theft capability of the lock body.

The key core part 250 and the inner handle thumb wheel 210 of the escape lock can drive the movement of the dead bolt and the oblique bolt, and the outer door handle can only drive the oblique bolt to move, and the specific process is as follows: the user uses the key to dial the key core piece 250, the key core piece 250 is respectively abutted with the square bolt piece 120 and the latch bolt dial wheel 230, so the key core piece 250 can drive the square bolt piece 120 to move up and down, the latch bolt retracts or extends out of the lock shell 300, the key core piece 250 can drive the latch bolt dial wheel 230 to rotate, and the latch bolt dial wheel 230 drives the latch bolt piece 110 to move upwards, and the latch bolt retracts or extends out of the lock shell 300.

The outer handle thumb wheel 220 is connected with the outer side door handle, the inner handle thumb wheel 210 is connected with the inner side door handle, the latch bolt thumb wheel 230 and the square bolt thumb wheel 240 are abutted under the inner handle thumb wheel 210, and only the latch bolt thumb wheel 230 is abutted under the outer handle thumb wheel 220, so that the outer handle thumb wheel 220 can only drive the latch bolt thumb wheel 230 to rotate when rotating, thereby controlling the movement of the latch bolt, the inner handle thumb wheel 210 can not only drive the latch bolt thumb wheel 230 to rotate, but also can drive the square bolt thumb wheel 240 to rotate, thereby the inner handle thumb wheel 210 can control the movement of the latch bolt and the square bolt, as shown in fig. 1, taking an unlocking module on the left side as an example, when a user rotates the outer side door handle counterclockwise, the outer handle thumb wheel 220 rotates counterclockwise, the latch bolt thumb wheel 230 is driven to rotate, the latch bolt 110 moves upward, thereby retracting the latch bolt into the lock case 300, and meanwhile, the first elastic member 260 is pulled long; as shown in fig. 2, taking the unlocking module on the left side as an example, when a user rotates the inside door handle counterclockwise, the inner handle thumb wheel 210 rotates clockwise to drive the latch bolt thumb wheel 230 and the latch bolt thumb wheel 240 to rotate counterclockwise, and the latch bolt 110 and the latch bolt 120 move upward, so that the latch bolt and the latch bolt retract into the lock case 300, and the first elastic member 260 is compressed.

As shown in fig. 1, taking the unlocking module on the left side as an example, when no external force is applied, the compressed first elastic member 260 extends to drive the outer handle wheel to rotate counterclockwise, the second elastic member 270 recovers to deform to drive the latch bolt wheel to rotate clockwise, the latch bolt 110 moves downward, and the latch bolt protrudes from the lock case 300, so that the first elastic member 260 and the second elastic member 270 keep the latch bolt extending out of the lock case 300 when no external force is applied.

According to the escape lock, two sets of unlocking modules are installed in the lock shell, so that when one set of unlocking module is damaged, a user can install the door handle on the other set of unlocking assembly without replacing the escape lock body, and meanwhile, the unlocking modules are arranged on two sides of the lock tongue module, so that the steering directions of the two sets of unlocking modules are opposite, the user can randomly select the unlocking steering direction of the door handle by adjusting the installation direction of the escape lock, referring to fig. 1, if the door handle is installed on the unlocking assembly on the left side, the user can open the door by rotating the outer handle clockwise or rotating the inner handle anticlockwise, and if the door handle is installed on the unlocking assembly on the right side, the user can open the door by rotating the outer handle anticlockwise or rotating the inner handle clockwise.

As shown in fig. 1, in some embodiments, the lock case 300 is provided with a limit pin 310, the latch piece 110 is provided with a U-shaped groove 111 matched with the limit pin 310, the square tongue piece 120 is provided with a sliding groove 121 matched with the limit pin 310, the limit pin 310 and the sliding groove 121 structure realizes sliding connection between the lock case 300 and the square tongue piece 120, the limit pin 310 and the U-shaped groove 111 structure realizes sliding connection between the lock case 300 and the latch piece 110, when the latch extends out of the lock case 300, the limit pin 310 is located at the upper end of the U-shaped groove 111, when the latch retracts into the lock case 300, the limit pin 310 is located at the lower end of the U-shaped groove 111, and the limit pin 310 can ensure that the latch piece 110 always moves up and down along the same straight line, thereby preventing the latch piece 110 from moving left and right during; similarly, when the square tongue extends out of the lock case 300, the limit pin 310 is located at the upper end of the sliding groove 121, when the square tongue retracts into the lock case 300, the limit pin 310 is located at the lower end of the sliding groove 121, and the limit pin 310 can ensure that the square tongue piece 220 always moves up and down along the same straight line, so that the square tongue piece 120 is prevented from moving left and right.

As shown in fig. 1, in some embodiments, the latch bolt 110 is provided with a first groove 112, the latch bolt shifting wheel 230 is provided with a first protrusion 231 matching with the first groove 112, in some embodiments, the latch bolt 110 is provided with one first groove 112, and two latch bolt shifting wheels 230 share the same first groove 112, or the latch bolt 110 is provided with two first grooves 112, and the two first grooves 112 respectively match with the first protrusions 231 of the two latch bolt shifting wheels 230, so that the latch bolt shifting wheel 230 can drive the latch bolt 110 to move up and down when rotating, so that the latch bolt can protrude out of or retract into the lock case 300.

As shown in fig. 1, in some embodiments, the latch bolt module further includes a transmission member 130, the transmission member 130 abuts against the key core member 250 and the latch bolt dial wheel 230 respectively, the transmission member realizes indirect connection between the key core member 250 and the latch bolt dial wheel 230, the user uses a key to dial the key core member 250, the key core member 250 drives the transmission member 130 to move left and right, the transmission member 130 drives the latch bolt dial wheel 230 to rotate, and thus the latch bolt member 110 is driven to move, so that the user can use the key to control the movement of the latch bolt.

As shown in fig. 3, in some embodiments, the spoon core 250 has a second protrusion 251 and a third protrusion 252, the square tongue 120 has a second recess 122 matching with the second protrusion 251, the transmission member 130 has a protrusion 131 matching with the third protrusion 252, when the third protrusion 252 abuts against the protrusion 131, the spoon core 250 is used to drive the latch wheel 230 to rotate through the transmission member 130, and the second protrusion 251 and the second recess 122 can realize that the spoon core 250 directly drives the square tongue 120 to move; the third protrusion 252 and the bump 131 enable the spoon core 250 to indirectly drive the oblique tongue piece 110 to move: when the square tongue piece 120 extends out of the lock case 300, the third protrusion 252 does not abut against the protrusion 131, the spoon core piece 250 cannot drive the oblique tongue piece 110 to move, when the spoon core piece 250 drives the square tongue piece 120 to retract into the lock case 300, the transmission member 130 moves upwards, the third protrusion 252 abuts against the protrusion 131, and taking the left unlocking assembly as an example, the left spoon core piece 250 rotates counterclockwise, the transmission member 130 is driven to move rightwards, the right oblique tongue shifting wheel 230 is driven to rotate clockwise, and the oblique tongue piece 110 retracts into the lock case 300.

As shown in fig. 1, in some embodiments, the two sets of unlocking modules are symmetrically distributed along the symmetry axis of the latch bolt 110, and the positions of the key core element 250, the inner handle thumb wheel 210, the outer handle thumb wheel 220, and the latch bolt thumb wheel 230 are symmetrically distributed along the axis of the latch bolt 110, which facilitates the processing and assembly of the lock body parts and also makes the lock body more beautiful.

As shown in FIG. 1, in some embodiments, the first resilient member 260 is coupled to the latch wheel 230 such that the first resilient member 260 is capable of not only resetting the inner handle wheel 210 and the outer handle wheel 220, but also directly resetting the latch wheel 230.

As shown in fig. 1, in some embodiments, the second elastic member 270 abuts against the tongue member 120, so that the second elastic member 270 can prevent the tongue member 120 from moving left and right.

As shown in fig. 1, in some embodiments, the lock case 300 is provided with an adjusting screw 320, the adjusting screw 320 abuts against the latch bolt dial wheel 230, the adjusting screw 320 can control the length of the latch bolt extending from the lock case 300, so as to prevent the latch bolt from extending from the lock case 300 to an excessively long length, when the latch bolt extends from the lock case 300 to a certain length, the latch bolt dial wheel 230 abuts against the adjusting screw 320, so that the latch bolt dial wheel 230 cannot rotate continuously, and therefore the latch bolt member 110 cannot move downwards continuously, so that the extending length of the latch bolt is kept within a proper range.

As shown in fig. 1, in some embodiments, the lock case 300 is provided with a positioning component 330, the positioning component 330 abuts against a side surface of the first elastic element 260, and the positioning component 330 can limit the position of the first elastic element 260, so as to prevent the first elastic element 260 from being displaced during the contraction or extension process, and ensure that the first elastic element 260 is always deformed in a designated area.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. An escape door lock, comprising:

the bolt module comprises an inclined bolt piece and a square bolt piece;

2. The escape door lock of claim 1, wherein the lock housing is provided with a limit pin, the latch bolt member is provided with a U-shaped groove engaged with the limit pin, and the square bolt member is provided with a sliding groove engaged with the limit pin.

3. The escape door lock of claim 1, wherein the latch bolt member is provided with a first groove, and the latch bolt thumb wheel is provided with a first protrusion engaged with the first groove.

4. The escape door lock of claim 2, wherein the bolt module further comprises a transmission member, and the transmission member is respectively abutted against the key core member and the latch kick wheel.

5. The escape door lock according to claim 4, wherein the key core member is provided with a second protrusion and a third protrusion, the square tongue member is provided with a second groove engaged with the second protrusion, the transmission member is provided with a protrusion engaged with the third protrusion, and when the third protrusion abuts against the protrusion, the key core member is used for driving the latch kick wheel to rotate through the transmission member.

6. The escape door lock of claim 1, wherein the two sets of unlocking modules are symmetrically arranged along the axis of symmetry of the latch member.

7. The escape door lock of claim 1, wherein said first resilient member is connected to said latch wheel.

8. The escape door lock of claim 1 wherein said second resilient member abuts said dead bolt member.

9. The escape door lock of claim 1 wherein said housing is provided with an adjustment screw, said adjustment screw abutting said latch thumb wheel.

10. An escape door lock according to claim 1, wherein the housing is provided with a locating member which abuts against a side surface of the first resilient member.