CN108756513B

CN108756513B - Door lock mortise lock capable of preventing spring bolt from being randomly bounced

Info

Publication number: CN108756513B
Application number: CN201810515167.XA
Authority: CN
Inventors: 赵阳日
Original assignee: Yinuo Electric Co ltd
Current assignee: Yinuo Electric Co ltd
Priority date: 2017-12-20
Filing date: 2018-05-25
Publication date: 2020-07-21
Anticipated expiration: 2038-05-25
Also published as: KR101891784B1; CN108756513A

Abstract

The invention provides a door lock mortise lock capable of locking or unlocking and preventing a lock tongue from being randomly bounced, which comprises a mortise lock main part, a door bolt, a sub-lock and a lock tongue.

Description

Door lock mortise lock capable of preventing spring bolt from being randomly bounced

Technical Field

Background

Generally, a door lock is widely used in general homes or public buildings. For example, an entrance of a hallway, a vault of a bank, and an entrance control device in a specific area.

Particularly, through methods such as password input or fingerprint identification, after user authentication, a motor or an electromagnetic valve is started, a door catch moves linearly, and locking and unlocking of a door are achieved.

This kind of prior art has registration utility model No. 20-0428164 "door lock mortise lock of built-in driving motor", the door lock mortise lock of prior art sets up gear and other mechanical parts that driving motor and driving motor drove at the mortise lock main part inboard for the inboard keeper of mortise lock passes through driving motor automatic operation, like this, can accomplish current mechanical type back-and-forth movement action of opening the door through the key, simultaneously, realizes electrical control through the motor, can regard as mechanical type locks and electronic type (intelligent) lock to use or simply adjust the back as electronic type (intelligent) simultaneously.

In addition, there is a prior art registered for realizing a new type of "door lock mortise" No. 20-0378846, which includes: a housing built in the door; and a keeper assembly that moves between an unlocked position and a locked position of the housing, projects from the housing, and is disposed on the door frame at the locked position; and a first spring elastically supporting the door frame assembly in a direction of the locking position; and a handle shaft rotating between a first position in the positive direction of the middle position of the housing and a second position in the reverse direction of the middle position, pressurizing the bolt assembly from the locking position to the unlocking position by rotating to the first position in the middle position, and having a pressurizing rod; and a locking lever which can perform a rotational movement between a locking position and an unlocking position of the housing, locks the keeper assembly at the unlocking position at the locking position, and unlocks the keeper assembly at the unlocking position; and a second spring for elastically pressing the locking lever toward the locking position; and an automatic locker for allowing the movement of the door bolt assembly from the unlock position to the lock position and automatically locking the door after closing the door; and a manual locker allowing movement of the keeper assembly from the unlocked position to the locked position and manually locking the door when the handle shaft is rotated from the intermediate position to the second position.

In addition, there are other prior arts registered for realizing a new type of bolt swing type door lock mortise lock No. 20-0483631, the prior art mortise lock comprising: the spring bolt is used for protruding or springing in the housing to lock or unlock the door; the spring is connected to the outer edge, the tail end of the spring is hinged, the lock tongue rotates on one side of the lock tongue, and the lock is bounced into the lock tongue shaft in the housing; a handle block which can make the lock tongue spring into the inner state of the housing for fixing; the flat plate prevents the lock tongue from bouncing in through external force; a flat clamping table b is arranged on one side of the handle block, and the flat plate is rotated, so that the handle b fixed by the lock tongue is released; and a flat plate clamping table c is arranged on one side, and the flat plate is rotated, so that the handle c fixed by the lock tongue is released.

There is a need for an escape function that allows trapped persons to easily escape indoors in an emergency, thereby minimizing personal accidents. That is, when a fire or earthquake occurs indoors, a person indoors is in a panic state, and at this time, a simple and convenient action, that is, a function of unlocking and escaping by rotating a handle in a room, is required.

There is a prior art of this kind registered as a new escape structure for realizing a door lock mortise lock with a plurality of door latches No. 20-0484884, the prior art escape structure including: a mortise lock main part which moves in a horizontal direction; at least one bolt and an internal locking bolt for realizing a locking state and an unlocking state; an operation lever for moving the door bolt in a horizontal direction; and a lever linked at one end of the operating rod and moving the inner locking bolt in a horizontal direction.

This prior art only maintains the locked state of the door by means of the keeper or the latch, and particularly, the latch is freely rotated and bounced inward when the door is opened or closed, and the door can be opened as long as the keeper bounces inward, which may reduce safety.

Disclosure of Invention

Problems to be solved

In order to solve the above object, the present invention provides a door lock mortise lock capable of preventing a bolt from being randomly sprung, comprising: the mortise lock comprises a mortise lock main part, a door bolt, a sub-lock, a lock tongue and a locker, wherein the locker starts to work when the sub-lock is bounced into the mortise lock main part in a door locking state, and the lock tongue is prevented from being bounced at will.

The locker moves up and down in the mortise lock main part and comprises a locking body which links the sub-lock and the lock tongue, and the sub-lock can freely descend through the inclined part of the sub-lock, so that misoperation and random spring-in of the lock tongue are prevented.

Means for solving the problems

In order to achieve the above object, the present invention provides a door lock mortise lock capable of preventing a bolt from being randomly sprung in, comprising:

a mortise lock master;

the door bolt moves on the mortise lock main part in the horizontal direction and completes locking and unlocking actions;

a sub-lock below the door bolt and capable of moving in a horizontal direction;

the lock tongue is arranged below the sub-lock and can extend and retract towards the outside of the mortise lock main part;

the locker is linked with the sub-lock and the lock tongue and moves up and down in the mortise lock main part, and when the sub-lock is bounced into the mortise lock main part, the lock tongue is prevented from being bounced into the mortise lock main part.

Effects of the invention

The invention provides a door lock mortise lock capable of preventing a lock tongue from randomly bouncing in, which is characterized by comprising the following components: the mortise lock comprises a mortise lock main part, a door bolt, a sub-lock and a lock tongue, wherein the door bolt, the sub-lock and the lock tongue are popped out from the mortise lock main part, and when the sub-lock is popped into the mortise lock main part in a door locking state, the lock tongue is limited to be popped into the mortise lock main part along with the descending of a locker, so that a stable locking state is kept.

Drawings

FIG. 1 is a perspective view of the door latch of the present invention;

FIG. 2 is an enlarged view of the sub-lock and bolt of the door lock mortise lock of the present invention;

FIGS. 3 and 4 are views illustrating the operation of the sub-lock and the locking tongue of the mortise lock for door lock according to the present invention;

FIG. 5 is an enlarged view of the lockers of the door latch of the present invention;

fig. 6a to 6c are operation views of the mortise lock of the door lock according to the present invention.

Description of reference numerals:

m: door lock mortise lock 10: mortise lock master

20: the door bolt 30: sub-lock

40: the bolt 50: operating device

70: a locking device.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms. However, the present invention is not limited to the embodiments, and all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

The same reference symbols on the drawings, in particular, the same symbols as the tens and the ones or the tens, the ones and the english letters denote the same or similar components, and if not otherwise specified, the symbols indicated on the drawings may be regarded as components specified according to the above requirements.

In addition, the various components on the drawings are enlarged (thick) or reduced (thin) for convenience of understanding, but this is not intended to limit the scope of the present invention.

The terms "comprises" or "comprising," or the like, in the present specification are intended to indicate the presence of the stated features, integers, steps, actions, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, actions, elements, components, or groups thereof.

Unless defined otherwise, all terms used in the specification, including technical and scientific terms, are intended to be interpreted as commonly understood by one of ordinary skill in the art to which this invention belongs. We often use certain words defined in dictionaries, which are the same as the definitions explained in the related art, and do not interpret the meanings in idealized or transition forms if they are not explicitly defined in the present invention.

For convenience of explanation, the mortise lock of the present invention is defined with reference to fig. 1, which specifies approximate vertical and horizontal direction criteria, with the direction in which the keeper (20) is ejected as a front face, and the direction in which gravity acts as a lower face, and the direction is determined in accordance with this method both when detailed descriptions of inventions relating to other drawings and claims are not particularly required.

Fig. 1 is an overall structural view of a mortise lock for a door lock according to the present invention, fig. 2 to 4 are structural views of a sub-lock and a tongue, and fig. 5 is an enlarged view of each structure.

Fig. 6a shows a state where the door is opened, fig. 6b shows a state where the door bolt is unlocked by rotating the separator, that is, a state where the door bolt is unlocked for locking the door, and fig. 6c shows a state where the door is locked, and the structure will be described in detail with reference to various drawings.

The invention provides a door lock latch (M) comprising: the mortise lock comprises a mortise lock main part (10), a door bolt (20), a sub-lock (30), a bolt (40), an operator (50) and a locker (70).

The mortise lock is structurally characterized in that the mortise lock main part (10) is arranged in a door, and a door bolt (20), a clamping end (21), a first head part (31) of a sub-lock (30), a second head part (41) of a bolt (40) and first to third telescopic holes (113) which respectively extend and retract are formed in a side wall end (11) extending outwards from the door end.

The number of the telescopic holes is not limited, but in order to strengthen the locking function of the door bolt (20), the door bolt (20) of the invention is provided with 3 clamping ends (21), similarly, the upper part and the lower part are provided with 3 first telescopic holes (111), and the sub-lock (30) and the bolt (40) are only provided with one second telescopic hole (112) and one third telescopic hole (113).

Therefore, the door lock catch (S) of the door frame is provided with a clamping end (21) inserted into the door bolt (20) and a lock hole inserted into the second head (41) of the bolt (40) relative to the side wall end (11), the part corresponding to the first head (31) of the sub-lock (30) is of a plane shape without holes, and the first head (31) of the sub-lock (30) is bounced into the mortise lock main part (10) in the door locking state.

In addition, the mortise lock main part (10) is internally provided with a guide shaft (13) for guiding the bolt (20) to move back and forth, and a plurality of independent fixing shafts for rotating or fixing each structural part, which are already disclosed and are not explained herein.

The door bolt (20) is used for locking and unlocking a door, more than 2 clamping ends (21) which are connected with a certain distance from top to bottom are arranged at the front end (3 clamping ends (21) are listed in the invention), and a sliding hole (23) connected with the guide shaft (13) is arranged at the middle end or the rear end or the two ends (the structure of the invention is that the two guide shafts (13) and the sliding hole (23) can stably perform linear motion).

The door bolt (20) moves back and forth on the mortise lock main part (10) through the operation of a manual (a user can directly operate through an indoor handle with an escape function or an outdoor manual key and the like) or a motor (512) (the operation is performed after a door opening button is pressed indoors or a password is input outdoors or a safety card, a fingerprint and the like are used for unlocking), and the card end (21) pops in and out on the first telescopic hole (111) and pops in and out of the mortise lock main part (10).

Then, the sub-lock 30 and the latch tongue 40 contact the door lock catch of the door frame when the door is opened and closed, and are ejected from the mortise lock main member 10, and at this time, the heads are extended and contracted to the outside of the mortise lock main member 10.

Specifically, first, the sub-lock (30) includes: a first head (31) which can be extended and retracted to the outside of the mortise lock main part (10) through the second extension and retraction hole (112); a first body (33) connected to the first head (31), elastically supported in the pop-up direction, and moved forward and backward inside the mortise lock main member (10); and a first hinge pin (35) which is hinged to the first head (31) and the first body (33) and which allows the first head (31) to swing left and right.

The rear end of the first body (33) of the sub-lock (30) is provided with a first elastic body (37), the end part of the first elastic body (37) is provided with a first bracket (371), and the sub-lock (30) is subjected to forward elastic force through the elasticity of the first elastic body (37).

In addition, the sub-lock (30) contacts a door lock catch to realize the left-right direction conversion of the first head (31) and complete the action of popping in and out.

Therefore, the first head part (31) is composed of a first inclined surface (311) and a second inclined surface (312) which are symmetrical with each other, the first inclined surface and the second inclined surface extend out of the mortise lock main part (10), the front side surface and the rear side surface incline downwards towards the front, when the door is opened and closed, the first head part (31) swings left and right by taking the first hinge pin (35) as the center according to the direction of contacting the door lock catch, and the direction switching of the first inclined surface (311) and the second inclined surface (312) is realized.

Therefore, a semicircular first supporting block (314) which protrudes along the outer edge of the rear side of the first hinge pin (35) is arranged on the upper surface or the lower surface of the first head part (31) or the upper and lower surfaces of the first head part and the first head part, so that the first head part (31) contacts the side wall end (11) of the mortise lock main part (10) when being ejected, and the tail end of the first supporting block (314) on the side surface of the mortise lock main part (10) is used as a supporting point when the first head part (31) is ejected, so that the left and right swinging of the first head part (31) is realized.

That is, first, if the first head 31 contacts the door catch after the door is opened in a closed state or closed in an opened state, the first head 31 swings in a direction opposite to the contact, and the first head 31 is pushed into the latch main member 10 by the inclination of each inclined member contacting the door frame, and at this time, the sub-lock 30 is sprung.

At this time, at one of both side ends of the first supporting block (314) contacting the side wall end (11) (the end placed in the swing direction of the first head (31)), a lever-like supporting point is generated, and at the same time, an impact applied to the first head (31) by the first supporting block (314) is dispersed or resisted, and the inside of the mortise lock main part (10) is sprung at a speed faster than that of the sub-lock (30), thereby preventing breakage of the fitting or the like by the impact.

Furthermore, when the first head part (31) is ejected, the end of the first support block (314) contacts the side wall end (11) of the mortise lock (10) to return the first head part (31) to the position before swinging.

That is, in a state that the door is completely separated from the door frame and opened, the first head 31 generates an external force, and at this time, the sub-lock 30 moves forward and is ejected by the first elastic body 37, and the first head 31 is ejected in a state of swinging in either left or right direction, so that, at the time of ejection, one of both side ends of the first supporting block 314 contacts the side wall end 11 to generate a supporting point similar to a lever, and then, with the supporting point as a rotation axis, the first head 31 returns to a home position before swinging, that is, a neutral position before left or right swinging, to realize ejection of the sub-lock 30, so that not only is an ejection distance of the first head 31 limited, but also, in this state, when the door is closed, the second head 41 of the latch 40 contacts the door latch before the first head 31, the bolt (30) is allowed to spring in earlier than the sub-lock (40).

The latch tongue (40) is extendable and retractable outside the mortise lock main unit (10), and includes a second head (41) elastically supported in an ejecting direction.

Specifically, the locking tongue (40) comprises a second head (41) which can extend and contract towards the third telescopic hole (113); and connect to the said second head (41), support to pop out the direction elasticity, and the second organism (43) moving forward and backward in the inside of the mortise lock main part (10); and a second hinge pin (45) that hingedly connects the second head (41) and the second body (43) such that the second head (41) swings left and right; a separate locker (70) is provided at the rear of the second body (43), as will be described in detail below.

The latch tongue (40) is elastically pressed in the ejecting direction by a second elastic body (47) in the mortise lock main body (10), and as with the sub-lock (30), the left-right direction switching of the second head (41) is completed by the contact of the door lock catch, and the latch tongue is ejected.

Thus, the shape of the second head part (41) of the latch bolt (40) can be the same as the first head part (31) of the sub-lock (30), but in order to prevent the swing when the door is closed, the second head part is supported on the second body (43) and arranged up and down, the inclined surfaces arranged oppositely are composed of a pair of split parts formed by crossing left and right with the second hinge pin (45) as the center, when the door is opened and closed, one of the split parts swings, and the second head part (41) is ejected and pushed forward and backward.

That is, in a state where the back surfaces of a pair of divided bodies constituting the second head part 41 are supported by the second body 43 and share the second hinge pin 45, the outer side surfaces are arranged in parallel in the left-right direction, and the inner side surfaces are formed in a cross shape of an 'X', so that the divided bodies cannot swing left and right as long as the latch bolt 40 is not sprung, and thus the door cannot be opened, and only when the latch bolt 40 is sprung, one of the divided bodies swings, and at the same time, the second head part 41 can be sprung, that is, the latch bolt 40 moves backward, by the pressure of the spring bolt.

For example, when the door is opened, if the outer side surface of the first split body (411) contacts the door lock catch, the second body (43) is pushed backwards, and at the moment, the first split body (411) and the second split body (412) swing at the same angle, so that the outer side surface and the inner side surface of the first split body (411) and the second split body (412) both contact the door lock catch, and the second head (41) is squeezed into the mortise lock main part (10), and thus the lock tongue (40) is popped into the mortise lock main part.

Thus, each body of the second head (41) comprises: and a second support block (414) protruding along the rear outer edge of the second hinge pin (45) on the upper and lower surfaces of each division body, contacting the side wall end (11) of the mortise lock main part (10) when the second head part (41) is ejected, swinging the swinging division body with the end of the second support block (414) of the side wall end (11) of the mortise lock main part (10) as a support point when the second head part (31) is ejected, contacting the side wall end (11) of the mortise lock main part (10) with the end of the second support block (414) of the swinging division body when the second head part (41) is ejected, and simultaneously, restoring the corresponding division body to the original position before swinging.

That is, the structure of the second support block (414) corresponding to the first support block (314) of the sub-lock (30) is the same as the first support block (314) in function, but the first head (31) of the sub-lock (30) returns to the neutral position through the first support block (314) when ejected, and the second head (41) of the latch tongue (40) returns to the crossing position through the second support block (414) when ejected, which is different from the above.

At this time, both ends of the first support block (314) contact the side wall ends (11) with respect to the neutral position of the first head (31), and both ends of the second support block (414) contact the side wall ends (11) with respect to the swing position at which the respective divided bodies intersect.

Therefore, for the swinging reset and stable support of each split body, the two ends of the second supporting block (414) are provided with supporting tables (415) which are the same as the plane of the side wall end (11) and are connected in a bending way towards the outer side, and the supporting tables (415) are also suitable for the first supporting block (314).

Next, a bolt operator (50) for ejecting the bolt (20) will be described.

The operator (50) comprises an operation part for driving the bolt (20), and the operation part (51) rotates clockwise with reference to fig. 1, so that the bolt (20) can be ejected into the side wall end (11).

Namely, the pushing piece (25) at the rear side of the bolt (20) can be pressed at one side of the operating piece (51), when the operating piece (51) rotates clockwise, the operating piece (51) pushes the pushing piece (25), the pushing piece (25) moves backwards, and the bolt is bounced.

At this time, the operating member (51) is movable according to the rotation of the separator (60) described later (when the escape function is used), but this is limited to the escape function, and therefore, the drive motor (512) can be unlocked only by a manual key or fingerprint recognition, password input, or the like, in the outside in a normal case.

Therefore, the operating member (51) is provided with a handle connecting hole (511) which can be connected with a manual key or a handle, the handle connecting hole is arranged for manually rotating the operating member (51), when the operating member is unlocked externally, a motor (512) and a first gear (514) arranged on the motor (512) are driven, the first gear (514) is meshed and connected with a second gear (515), and the second gear (515) connected with the operating member (51) drives the operating member (51) to rotate.

For this, the operating member (51) is provided with a latch (517), the second gear (515) is provided with a driving hole (515 a) inserted into the latch (517), and when the second gear (515) rotates, the end of the driving hole (515 a) pushes the latch (517) to rotate.

Therefore, in order to provide a restoring force to the bolt (20) which springs into the mortise lock main member (10), the bolt (20) is further provided with a torsion spring (15) which returns the bolt (20) to the home position, and the rotational operating member (51) is also returned to the home position.

The invention is characterized by also comprising a locker for preventing the spring-in of the bolt (40) when the sub-lock (30) is spring-in when the door is locked.

In more detail, the locker (70) can link a first body (33) of the sub-lock (30) and a second body (43) of the locking bolt (40), the locker (70) comprises a locking body (71), and the locking body (71) comprises a through hole (711) penetrating through the first body (33) and a spring inlet (713) springing into the second body (43).

More specifically, the first body (33) has a tilt member (331) that descends forward, and a through hole (711) that penetrates the tilt member (331) is provided in the locking body.

In summary, when the sub-lock (30) is bounced, the first body (33) moves backward, and at this time, the first body (33) may pass through a through hole (711) provided in the locking body (71).

Therefore, the spring-in of the bolt (40) is limited along with the descending of the locking body (71), for this reason, preferably, a third elastic body (73) is arranged above the locking body (71), and the locking body (71) can move downwards through elasticity.

When the door is closed, the sub-lock (30) is inserted into the mortise lock main part (10), the inclined part (331) is located behind the through hole (711), the locking body (71) descends to limit the insertion of the latch bolt (40), when the door is opened, the sub-lock (30) moves forward, the inclined part (331) of the first body (33) moves to the front end of the through hole (711), and the upper surface of the through hole (711) ascends along the inclined part (331), so that the locking body (71) is lifted.

That is, the ascending locking body (71) eliminates a device for restricting the spring-in of the lock tongue (40), and the lock tongue (40) can be spring-in into the mortise lock main part (10).

As for the device for preventing the lock tongue (40) from bouncing in by the locking body (71), firstly, an bouncing inlet (713) which can bounce into the second body (43) of the lock tongue is arranged below the locking body (71). Meanwhile, the second machine body (43) is provided with a locking step (431), when the locking body (71) descends, the upper end of the bullet inlet (713) is attached to the upper surface of the second machine body (43), and at the moment, the locking step (413) is clamped on the bullet inlet (713) to prevent the bullet from entering, so that the spring bolt is prevented from entering.

On the contrary, when the locking body (71) ascends, the upper surface of the spring inlet (713) is far away from the second body, and according to the distance, the locking step (431) can be ensured to enter the space of the spring inlet (713), and a structure for allowing the bolt (40) to spring in is formed.

Although the door latch having a specific form and structure has been described above with reference to the drawings of the present invention, those skilled in the art to which the present invention pertains can make various modifications and alterations within the technical spirit and scope of the present invention, and such modifications and alterations are within the scope of the present invention.

Claims

1. The utility model provides a prevent that spring bolt from playing lock mortise lock that advances at will which a serial communication port, includes:

a mortise lock master;

a sub-lock below the door bolt and capable of moving in a horizontal direction;

the locker is linked with the sub-lock and the lock tongue and moves up and down in the mortise lock main part, and when the sub-lock is bounced into the mortise lock main part, the lock tongue is prevented from being bounced into the mortise lock main part;

the locker includes: a through hole inserted into the first body of the sub-lock; the spring is sprung into a spring inlet of the second bolt body; a locking body; the first body of the sub-lock is provided with an inclined piece, and a through hole penetrating through the inclined piece is arranged on the locking body; the second machine body of the lock tongue is provided with a locking step, when the sub-lock is bounced in, the locking body descends along the inclined piece, and the locking step is clamped on the bounced inlet to prevent the spring tongue from bounced in.

2. The door lock as claimed in claim 1, wherein the locking body has a third elastic body at an upper end thereof, and the locking body is moved downward by an elastic force when the sub-lock is inserted.