CN109989629B - Mortises for improved assemblability and operational stability - Google Patents

Abstract

The present invention relates to mortises for improving assemblability and operational safety, and more particularly to mortises for improving assemblability and operational safety having the following functions: the first shaft seal at the indoor side and the second shaft seal at the outdoor side are respectively provided with a stopper, and are constructed by two sections and can be connected with each other in an idling way; the handle shaft can be assembled more easily according to the opening and closing direction of the door; when the manual key or the handle is used for manual locking and unlocking, the load on the driving motor can be prevented.

Description

Mortises for improved assemblability and operational stability

Technical Field

The present invention relates to mortises for improving assemblability and operational safety, and more particularly, to mortises for improving assemblability and operational safety having the following functions: the first shaft seal at the indoor side and the second shaft seal at the outdoor side are respectively provided with a stopper, and are constructed by 2 sections and can be connected with each other in an idling way; the handle shaft can be assembled more easily according to the opening and closing direction of the door; when the manual key or the handle is used for manual locking and unlocking, the load on the driving motor can be prevented.

Background

The digital door lock is composed of a mortise embedded in the door, an outdoor side body installed at one side of the outdoor side of the door, and an indoor side body installed at the other side of the indoor side of the door.

Wherein in the mortises, a latch bolt for opening and closing the door and a lock bolt for performing a locking function of the door can be drawn in and out, and the latch bolt and the lock bolt are inserted into an impact member provided in the door frame in a hitching structure to keep the door closed.

Furthermore, the indoor side body is provided with an open/lock button or a thumbturn button for operating the lock pin of the mortise to go in and out.

The outdoor side body is provided with a password input unit and/or a fingerprint recognition unit and/or a security key (or card) contact unit, etc.

With such a digital door lock, when an indoor user presses an open/lock button or a thumbturn button of an indoor side body, or when an outdoor user inputs a password, fingerprint identification, security key contact, rotates a manual key to an outdoor body, the deadbolt is pulled into the inside of the mortise and unlocked, and then the handle is used to pull the deadbolt in to open the door.

On the other hand, in order to facilitate the use of digital door locks, a product has recently been proposed in which the latch bolt and the deadbolt can be simultaneously unlocked by only a rotational operation of the indoor side handle without operating the indoor side on/off button or the thumbturn button.

For mortises that can be unlocked with indoor side handles, the first shaft seal that connects the indoor side handles and the second shaft seal that connects the indoor side handles must be assembled in a direction that changes depending on the opening and closing direction of the door when the door is installed.

That is, the shaft seals connected to the outdoor side handle must operate only the dead bolt, and the shaft seals connected to the indoor side handle must operate the latch bolt and the dead bolt together, and thus, each shaft seal must be assembled into a shaft seal capable of rotating separately according to indoor and outdoor side directions.

Thus, when installing a mortise assembly or mortise on a door, separate shaft seals, each separately assembling accessories coupled with each shaft seal, must be assembled according to the use of the outdoor side and the indoor side. But there are also the following problems: since the original assembling structure of the handle shaft is complicated, special care is required in assembling the shaft seal, assembling and installing the mortises are difficult, and a long operation time is required.

On the other hand, there are the following problems: for the original mortises, the action of the dead bolt is realized by engine driving, and when a manual key is inserted into an indoor side handle or an outdoor side main body to manually unlock the dead bolt or lock the dead bolt, the dead bolt cannot be satisfactorily unlocked because of load generated by the engine driving.

That is, there are also the following problems: after the door is closed, the deadbolt is automatically locked by the engine driving, and since the gear of the lever driving the deadbolt is engaged with the gear connected to the engine, in this state, when the indoor side handle or the manual key is used to manually rotate the lever for the deadbolt, the gear of the stopped engine receives a rotation pressure and generates a load, so that the engine is failed or parts are broken, and the operation of the deadbolt cannot be satisfactorily performed.

In addition, there are the following risks: in the prior mortises, since the lever for the deadbolt capable of being manually locked and unlocked is interconnected with the gear rotated by the engine, the load as described above is generated when the deadbolt is operated by the engine by the safety release means such as inputting a code, and thus the generated load is liable to cause damage or even malfunction of the programmed operation structure of the mortises when the deadbolt is operated.

The prior art relating to mortises relating to this is the following: korean registered patent No. 10-0873401, korean patent No. 20-0465868, korean patent No. 20-0479644, korean registered patent No. 10-0907642, korean registered patent No. 10-1263446, korean registered patent No. 10-1331979, korean patent No. 20-0459876, etc.

Disclosure of Invention

The present invention has been made in order to solve the above-mentioned problems.

The invention aims at: when installing the mortises, the protruding direction of each shaft seal of the handle shaft can be easily changed according to the indoor side and outdoor side directions, and when manual unlocking is performed by operating the indoor side handle or the manual key, the gears connected to the engine can be prevented from rotating together, and a mortice capable of performing no-load control of the electric engine is provided.

In order to achieve the above object, the present invention relates to a mortise as follows:

A housing having a front panel closely coupled to an impact piece of the door frame;

a latch bolt connected to make the front panel protrude to the outside and capable of moving back and forth;

A handle shaft comprising: the first shaft seal protrudes to the outer surface of one side of the shell, the second shaft seal is connected to the inner section of the first shaft seal so as to rotate in a hollow way, the first stopper hung on one side of the first lever is connected to the outer side of the first shaft seal, and the second stopper hung on the other side of the second lever is connected to the outer side of the second shaft seal.

A first unlocking means consisting of: and a first lever connected to the outer side surface of the first shaft seal and capable of moving the latch bolt forward and backward by rotation when the outside handle is operated, and a second lever and a third lever connected to the outer side surface of the second shaft seal and capable of moving the latch bolt and the lock bolt forward and backward by rotation when the inside handle is operated.

A lock pin connected to make the front panel protrude to the outside and move back and forth;

A second unlocking device consisting of: a driving motor having a first gear, a second gear having a circular groove formed at the center of the bottom and a semicircular groove formed at the outer circumference of the circular groove, a third gear having a circular protrusion inserted into the circular groove and a limit protrusion inserted into the circular groove, the third gear being engaged with the third gear and rotatably connected thereto by a third lever, and a fourth lever capable of moving the lock pin forward and backward when the driving motor is rotated automatically or manually by a key or manually by the third lever; features including a first unlocking means and a second unlocking means.

The mortises according to the present invention are:

the handle shaft comprises the following characteristics: the first shaft seal and the second shaft seal are engaged with each other in a circular configuration so as to be capable of rotating in an air-to-air manner, a groove recessed in an outer peripheral surface of the male engagement portion, and a restricting projection projecting from an inner peripheral surface of the female engagement portion and inserted into the groove.

The mortises according to the present invention are:

The lock bolt includes the following features: a plurality of padlock parts protruding from the front panel, a main body part connected to the rear end of the padlock parts, a pair of guide parts connected to the rear end of the main body part and arranged at a distance from each other, guide grooves formed along the length direction of the respective guide parts,

The above-mentioned casing includes following characteristics: protruding from the inner side of one side of the cover and slidably engaged with the protruding ends of the respective guide grooves of the locking pin.

Meanwhile, the mortises related to the invention are:

The first unlocking tool has the following characteristics: the two ends of the locking bolt are respectively hung on the third lever and the fourth lever and are rotatably arranged, the locking bolt moves backwards by rotating the third lever in one direction, the fifth lever can rotate the fourth lever, the first elastic spring enables the fifth lever to rotate in the opposite direction and can elastically support the fifth lever.

The invention has the following advantages or beneficial effects:

the mortises related to the invention are: the variable first stopper and the fixed second stopper are provided on a handle shaft composed of shaft seals which are in idle rotation engagement with each other so that the direction of the shaft seals can be easily changed and they can be disassembled and assembled.

When the lock bolt is manually locked and unlocked by using the indoor handle or the manual key, the gears for driving the engine cannot rotate together, and the no-load state of related parts is maintained, so that the occurrence of faults is reduced, and the operation safety of the lock bolt is improved.

Each shaft seal can be easily disassembled and assembled, and interference from other shaft seals when each shaft seal is rotated individually is prevented, improving durability.

In order to improve safety, large deadbolts are assembled in parallel in the housing and kept parallel to prevent parts from being worn out due to repeated use of the deadbolts,

Each lever is normally returned and maintained in the original position by a spring,

Meanwhile, the following effects are achieved: the assemblability and operational stability of all the parts of the mortise can be improved.

Drawings

The invention and its features, aspects and advantages will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings. Like numbers refer to like parts throughout. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

FIGS. 1 and 2 are interior side views of a mortise in accordance with the present invention;

FIG. 3 is a cross-sectional view of a handle shaft according to the present invention;

FIG. 4 is an exploded perspective view of a significant portion of a second unlocking device in accordance with the present invention;

FIG. 5 is an exploded perspective view of the deadbolt of the present invention;

Fig. 6a to 6c are inner side views of important parts made for explaining the direction change of the latch bolt according to the present invention.

10-Housing 11-front panel 12, 16-guide groove 13-insertion holes 14, 15-protruding ends

20-Latch bolt 21-ratchet wheel 22-guide rod 23-catching edge 24, 27-compression spring

25-Guide 26-brake 30-handle shaft 31, 32-shaft seal

33. 34-Stopper 40-first unlocking means 41A, 41B-first and second levers

42-Third lever 43-fifth lever 44-first elastic spring 50-dead bolt

51-Padlock portion 52-body 53, 54-guide portion 55-torsion spring

56 Control unit 60 second unlocking means 61 first gear 62 drive motor 63 second gear 64 third gear 65 fourth lever 70 trigger

Detailed Description

The invention will now be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention.

It should be understood that the invention is capable of modification and various forms, and examples (or embodiments) of specific implementations are described in detail herein, but it is not intended to limit the invention to the particular form set forth, but it is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the invention.

In each drawing, the same reference numerals are used for the same reference numerals, and the same reference numerals denote the same or similar functional members (particularly, tens and units, or tens and units and letters) without particular mention, and the members designated by the respective reference numerals of the drawings may be recognized as members which meet these standards and correspond thereto.

In each drawing, the size or thickness of the component is expressed by exaggeratedly describing the size or thickness so as to be larger (or thicker) or smaller (or thinner) in consideration of convenience of understanding and the like, so that the expression is simplified, however, the scope of the present invention should not be interpreted to a limited extent.

The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

It should be understood that, in the present application, terms such as "comprises," "comprising," "includes," "including," "comprising," etc., refer to the presence of a feature, number, step, operation, constituent element, component, or combination of these elements recited in the tables, but do not exclude the presence or addition of one or more other features or numbers, steps, operations, constituent elements, components, or combinations of these elements.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In describing mortises according to the present invention, for convenience, approximate standard references are designated with reference to fig. 1, assuming that the left side direction in which the front panel (11) is provided is the front side, the opposite direction is the rear side, and the downward-acting gravity direction is the lower side view with reference to the direction looking toward the front side, and the other directions seen are defined as the up-down, left-right directions unless otherwise specified in the detailed description and claims of the present invention in connection with the other figures, the directions are defined and described in accordance with the standard.

Hereinafter, the mortise for improving assemblability and operational stability according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a mortise (M) for closing and unlocking by guiding in and out and moving back and forth a latch bolt (20) and a dead bolt (50) installed inside a door, as shown in fig. 1 and 6c, comprising: the device comprises a shell (10), a latch bolt (20), a handle shaft (30), a first unlocking device (40), a second unlocking device (60), a locking bolt (50) and a trigger (70).

The shell (10) is used as a box-shaped component installed on the door and is provided with a front panel (11) closely connected to the impact piece of the door frame;

The front panel (11) has several protruding holes for guiding the ratchet (21) of the latch bolt (20), the padlock part (51) of the lock bolt (50), and the trigger (70), and has an insertion hole (13) for inserting tools such as a protruding hole and a driver for the ratchet (21) at the same height in the rear of the opposite housing (10) of the front panel (11).

The housing (10) is assembled by screwing bolts to side covers on both sides of the housing, wherein a screw is screwed to one of the inner surfaces of the indoor side and the outdoor side covers, and a plurality of protruding ends (14, 15) are protruded.

The latch bolt (20) is connected in such a manner that the front panel (11) protrudes to the outside and can move back and forth;

specifically, the latch bolt (20) includes a ratchet (21) which guides the ratchet to and from the protruding hole of the front panel (11), a guide rod (22) which is connected to the rear end of the ratchet (21) and is accommodated in the housing (10), the guide rod (22) includes a first fastening hole which can be inserted, a hooking edge (23) which is engaged with the inner side surface of the housing (10), a first compression spring (24) which is inserted outwardly on the guide rod (22), is arranged between the hooking edges (23) on the ratchet (21), and maintains the normal tension state of the ratchet (21), and the guide rod (22) includes a second fastening hole which can be inserted, and a guide (25) which is arranged at the rear end of the hooking edge (23).

The ratchet wheel (21) is formed by inclining one surface and forming the other surface flatly, when the door is opened, the ratchet wheel (21) is led out, the inclined part of the ratchet wheel (21) contacts with the impact part and is pressed, the ratchet wheel (21) is led into the shell (10) through the backward movement of the latch bolt (20), the locking of the door is completed, the latch bolt (20) moves forward through the first compression spring (24), and the ratchet wheel (21) is inserted into the lock hole of the impact part.

For such a latch bolt (20), the above-mentioned hooking edge (23) and the guide (25) are spaced apart from each other and caught by the first pressing portions of the below-mentioned first lever (41A), second lever (41B) to form a hooking groove,

At this time, in order to match the coil shape of the first compression spring (24), the guide rod (22) preferably has a bar shape with a circular cross section.

The guide rod (22) includes a stopper (26) extending rearward of the guide (25), and a second compression spring (27) externally inserted to the stopper (26) and arranged between the guide (25) and a tool groove of the stopper (26).

The first compression spring (24) and the second compression spring (27) exert a single force in the direction opposite to the compression and serve to support the hooking edge (23) and the guide (25) from the front side and the rear side. In this case, the second compression spring (27) is stronger than the first spring (24), and springs having the same elasticity can be used and made shorter in length or the same length, which are composed of a firm material, and the mutual realization of the elastic forces can be different.

The difference in elastic force is to prevent the guide rod (22) (i.e., the latch bolt (20) as a whole) from arbitrarily moving back and forth except for the case where the guide rod (22) is advanced by forcefully pressing to change the direction of the latch bolt (20).

At the same time, the diameter of the first insertion hole and the diameter of the second insertion hole are preferably larger than the diameter of the guide rod (22). This is to make the latch bolt (20) more easily movable than when moving forward or backward to change the direction of the latch bolt (20).

The tool groove of the stopper (26) connected to the rear end of the guide rod (22) is preferably formed as a cross groove, but may be formed in various shapes, for example, a straight groove or a polygonal groove.

The direction conversion of the latch bolt (20) will be described with reference to fig. 6a and 6 c.

In general, the inclined portion (21') of the ratchet (21) must coincide with the closing direction of the door so that the latch bolt (20) is pulled according to the closing of the door. However, the inclined portion (21') of the ratchet (21) is fixed in one direction, and it is troublesome to purchase and install the mortises in the door opening/closing direction.

Thus, the present invention allows the direction of the ratchet (21) to be changed for installation according to the installation position of the mortise or the opening/closing direction of the door.

First, as shown in fig. 6a, in order to change the direction of the ratchet (21), a tool such as a screwdriver is inserted into an insertion hole (13) provided in the rear surface of the housing (10), the latch bolt (20) is integrally pulled out of the front panel (11) while the second compression spring (27) is compressed, and a part of the front end of the guide lever (22) is exposed to the outside of the front panel (11), in cooperation with the tool groove provided in the stopper (26) being inserted forward.

In this state, as shown in FIG. 6b, when the tool is rotated 180 degrees, the inclined portion (21') of the ratchet (21) is changed to be directed in the opposite direction

Then, as shown in fig. 6c, the pressurized tool is slowly pulled out, and the ratchet (21) and the guide bar are returned to the original positions by the elastic restoring force of the second compression spring (27) in the rotational direction, so that the direction of the inclined portion of the ratchet (21) can be easily changed.

When the direction of the ratchet wheel (21) is changed and the latch bolt (20) is moved forward and backward, the guide lever (22) is preferably pulled out without rocking. This is because the first guide protrusions (25 b) protruding from one side or both sides of the guide (25) are slidably engaged with the first guide grooves (12) formed in the front-rear direction of the latch bolt (20) on one side or both side covers of the housing (10), so that the latch bolt (20) assigned to the first guide grooves (12) can be stably moved forward and backward without shaking.

A handle shaft (30) comprising: a first shaft seal (31) which is connected to be rotatable and protrudes to the outer surface of one side of the shell (10), a second shaft seal (32) which protrudes to the outer surface of the other side of the shell (10) and is connected to the inner section of the first shaft seal so as to rotate in a hollow way, a first stopper (33) which is connected to the outer side of the first shaft seal (31) and is hung on one side of a first lever (41A), and a second stopper (34) which is connected to the outer side of the second shaft seal and is hung on the other side of a second lever (32).

The first shaft seal (31) and the second shaft seal (32) are connected to the indoor side handle and the outdoor side handle, respectively, and are rotated in the left-right direction, and as shown in the figure, the first shaft seal (31) is arranged on the outdoor side, and the second shaft seal is arranged on the indoor side, although a specific embodiment of the arrangement of the second shaft seal (32) is shown, the opposite case may be configured.

According to the shaft hole shapes of the shafts of the first to third levers (41A) (41B) (42), the first shaft seal (31) and the second shaft seal (32) are preferably of a square cross-section shaft type.

The first stopper (33) and the second stopper (34) protrude from the outer surfaces of the shaft seals (31, 32), respectively, and are in contact with the outer surfaces of the two side covers of the housing (10), thereby preventing the handle shaft (30) from being separated from the housing (10).

Specifically, the handle shaft (30) includes the following features: the first shaft seal (31) and the second shaft seal (32) are engaged with each other in a circular configuration so as to be capable of rotating in an empty space, a groove (31 b) formed in a recessed manner on the outer peripheral surface of the male engagement portion (31A), and a regulating projection (35) protruding from the inner peripheral surface of the female engagement portion (32A) and inserted into the groove (31 b).

The handle shaft (30) is formed such that the male and female engagement portions (31A) (32A) of each shaft seal (31) (32) have a circular cross section such that the male engagement portion (31A) engages with the female engagement portion (32A). The fixing protrusion (35) is inserted into the fixing hole of the female coupling part (32A) such that the fixing protrusion (35) is caught in the coupling groove (31 b) to prevent the shaft seals (31) (32) from being separated. The connecting grooves (31 b) are connected in a circular shape, and shaft seals (31, 32) of the male and female joint parts are assembled to rotate independently of each other without interlocking with shaft seals of other shafts.

In addition, the male engagement portion (31A) has a circular plate shape, and the female engagement portion (32A) has a tapered shape in which the diameter of the inner surface is reduced, thereby preventing abrasion due to friction.

The first stopper (33) is connected to a suction hole formed in the first shaft seal (31) and is used for suction and suction, and includes an elastic body (33 a) built in the insertion hole (31 a) to elastically support the first stopper (33) outward.

The second stopper (34) is an annular member fitted in a receiving groove (32 a) recessed in a main surface of the second seal (32). The second stopper (34) may be disposed using an adhesive member and is preferably firmly engaged and fixed on the groove (32 a).

When the handle shaft (30) is inserted into the shaft holes of the levers (41A, 41B, 42) constituting the first unlocking means (40) and assembled, the handle shaft (30) is pushed into the first stopper (33), and when the handle shaft is pulled into the first shaft seal (31), the handle shaft is pushed.

Then, when the above-mentioned first stopper (33) passes through the shaft hole, the first stopper is pulled out again by the elastic body (33 a) and exposed to the outside of the first shaft seal (31), and therefore, the first stopper (33) and the second stopper (34) hang on the outer side surfaces of the first lever (41A) and the second lever (41B) and engage with the shaft hole to fix the handle shaft (30) against movement.

The handle shaft (30) can be easily removed from the housing (10) by pulling the handle shaft out of the shaft hole while pushing the first stopper (33) into the interior of the first shaft seal (31) by hand.

As described above, according to the present invention, the handle shaft (30) is easy to assemble and easy to disassemble, and the protruding direction of each shaft seal (31) (32) can be easily changed and reassembled by the handle shaft (30) according to the door opening/closing direction. For accurate constraint, each shaft seal (31) (32) is connected to a first lever (41A), a second lever (41B) and a third lever (42), respectively, to prevent interference by a lever connected to the other shaft seal when the shaft seals (31) (32) are rotated, respectively, and only the corresponding lever can be rotated more stably.

Next, the first unlocking means (40) locks and unlocks the latch bolt (20) or the latch bolt (20) and the lock bolt (50) according to the rotation of the shaft seals (31) (32) of the handle shaft (30). Comprising the following steps: a first lever (41A) connected to an outer surface of the first shaft seal (31) and rotated to move the latch bolt (20) back and forth upon operation of an outdoor side handle; a second lever (41B) and a third lever (42) connected to an outer surface of the second shaft seal (32) and rotated during operation of the indoor side handle, respectively, to move the latch bolt (20) and the dead bolt (50) back and forth, respectively.

The first lever (41A) and the second lever (41B) have the same shape such that the first pressing portion (41A) is protrusively connected to one side of the shaft hole, and the first pressing portion (41A) is inserted into the locking groove of the latch bolt (20) and engaged.

The third lever (42) has a second pressing portion (42 a) which is protrusively connected to the other side of the shaft hole so as to be connected to a second unlocking means (60) which will be described later, and more precisely, the second pressing portion (42 a) is connected to a fifth lever (43) when the fourth lever (65) is rotated.

The first unlocking device (40) comprises: the first lever (41A) is rotatably engaged with the first shaft seal (31) on the outside, and the second lever (41B), the third lever (42) and the second shaft seal (32) on the inside are rotatably engaged with each other.

When the first shaft seal (31) rotates together with the outdoor side handle, the first lever (41A) is interlocked, the latch bolt (20) is inserted to open the door, and when the second shaft seal (32) rotates together with the indoor side handle, the second lever (41B) and the third lever (42) are interlocked with each other to simultaneously pull the dead bolt (50) and the latch bolt (20) to unlock the door from the indoor side without operating the drive motor (62).

Meanwhile, in order to improve the stability of the pulling-out operation of the deadbolt (50) according to the handle operation, the above-mentioned first unlocking means (40) is provided with a third lever (42) and a following second unlocking means (60), comprising: both ends are respectively hung on the third lever (42) and the fourth lever (65) and are rotatably arranged, the locking bolt (50) moves backwards by rotating the third lever (42) in one direction, the fourth lever (65) can be rotated by the fifth lever (43), the fifth lever (43) rotates in the opposite direction by the first elastic spring (44), and the fifth lever can be elastically supported.

The fifth lever (43) is hingedly connected to the inner surface of the housing (10) between the third lever (42) and the fourth lever (65), and is provided with a first engaging portion (43 a) and a second engaging portion (43 b) which are connected to protrude upward and downward, and one side of the second pressing portion (42 a) of the third lever (42) and one side of the third pressing portion (65A) (more precisely, the dense protrusions (65A)) of the fourth lever (65) are contacted and connected to each other by each engaging portion (43 a) (43 b).

The first elastic spring (44) is a torsion coil spring that applies elastic force in a direction in which both ends are opened with respect to the center torsion portion. One end of the first elastic spring is engaged with a supporting portion protruding from an inner side surface of the housing (10), the other end is supported by one side of the first engaging portion (43 a), and in a state where no external force is applied, the fifth lever (43) is forcibly rotated in the other direction in which the deadbolt (50) advances, and automatically returns to the original position.

Therefore, when the third lever (42) is rotated in one direction (clockwise direction in the drawing) by the handle operation, the second pressing portion (42 a) pushes the first engaging portion (43 a) forward, and when the fifth lever (43) is rotated in the other direction (counterclockwise direction in the drawing), the second engaging portion (43 b) pushes the dense projection (65A) of the fourth lever (65) rearward so that the fourth lever (65) is rotated in one direction, and at the same time, the third pressing portion (65A) fitted in the locking groove (53 b) of the first guide portion (53) retracts the locking plug (50) so that the locking portion (51) is pulled into the housing (10), which achieves unlocking of the door.

Meanwhile, when the external force applied to the handle is released, the elastic device on the handle and the first compression spring (24) automatically return the latch bolt (20), in addition, the fifth lever (43) is rotated to return to the original position by using the elastic force of the first rotation spring (44), and the backward return latch bolt (50) is restored to move forward by driving the motor (62) to lock the door.

Furthermore, the locking bolt (50) protrudes to the outside of the front panel (11) and is engaged back and forth.

Specifically, the deadbolt (50) includes the following features: a plurality of padlock parts (51) protruding toward the outside of the front panel (11), a main body (52) part connected to the rear end of the padlock parts (51), a pair of guide parts (53) (54) connected to the rear end of the main body (52) part and arranged in a vertically spaced manner, guide grooves (53 a) (54 a) formed along the length direction of the respective guide parts (53) (54),

The housing (10) includes the following features: protruding ends (14, 15) protruding from the inner surface of one side of the cover and slidably engaged with the guide grooves (53 a, 54 a) of the lock pin (50).

At this time, with the above-described housing (10), a guide pin, which serves as a rotation shaft (center shaft) of a second gear to be described later, protrudes at a position spaced apart from the rear of the second protruding end (15) by a prescribed distance to slidably engage with a second guide groove (54 a) of the second guide portion (54).

The dead bolt (50) of the present invention is constructed such that the protruding ends (14) (15) of the respective guide portions (53) (54) arranged in the vertical direction are slidably connected to each other, so that the dead bolt (50) can be kept parallel up and down and moved forward and backward more stably.

As shown in the drawings of the present specification, when a plurality of (particularly, three or more) padlock parts (51) are provided to enhance safety, the center of gravity of the dead bolt (50) is inclined forward and the dead bolt (50) cannot be moved in parallel back and forth, aiming to prevent wear of parts of the dead bolt (50) and malfunction in which the dead bolt (50) cannot operate.

The second torsion spring (55), which is not illustrated and has no reference numeral, is rotatably engaged on the dense protrusions (65 a) of the first guide portion (53) and the fourth lever (65) of the dead bolt (50) at both ends connected to both sides, respectively, centering around the torsion portion, and when the dead bolt (50) is rotated to move forward and backward and both directions of the fourth lever (65), the elastic force of the second torsion spring (55) is transferred to the operation directions of the dead bolt (50) and the fourth lever (65), thereby making the operation of each component smoother.

Then, a second unlocking means (60) is constituted by: a driving motor (62) having a first gear (61), a second gear (63) having a circular groove (63 a) formed at the center of the bottom and a semicircular groove (63 b) formed at the outer periphery of the circular groove (63 a) and engaged with the first gear (61), a third gear (64) having a circular protrusion (64 a) inserted into the circular groove (63 a) and a stopper protrusion (64 b) inserted into the circular groove (63 a) and protruding from the outer periphery of the circular protrusion (64 a), and a fourth lever (65) engaged with the third gear (64) and rotatably connected by a third lever (42) and capable of moving the lock pin (50) forward and backward when the driving motor (62) is rotated automatically or manually by a manual key or manually by the third lever (42).

The drive motor (62) is battery powered and automatically locks after the door is unlocked. The first gear (61) rotates according to the rotation of the motor.

The second gear (63) is engaged with the first gear (61) and rotated, and particularly, the first gear (61) and the second gear (63) are engaged with bevel gears, thereby reducing the size of the gear structure.

The second gear (63) is engaged with a guide pin inserted into a second guide groove (54 a) of the dead bolt (50) to rotate about the rotation axis.

The circular groove (63 a) is formed at the center of the bottom surface of the second gear (63), and a semicircular groove (63 b) is formed at the outer circumference of the circular groove (63 a), which is larger than the diameter of the circular groove (63 a).

And, the above-mentioned third gear (64) is formed with a tooth portion (64A) on one side of its outer peripheral surface, and is rotatably and/or idly engaged with the second gear (63) at the bottom of the second gear (63).

The circular protrusion (64 a) of the third gear (64) has a shape and a size corresponding to the circular groove (63 a) of the second gear (63), and is inserted into and engaged with the circular groove (63 a).

A restricting projection (64 b) of the third gear (64) projects from the outer periphery of the circular projection (64 a) and is inserted into the semicircular groove (63 b) to be engaged with the semicircular groove (63 b) for rotational movement.

In addition, the fourth lever (65) is connected to the inner side surface of the housing (10) in a hinged manner between the first guide part (53) and the second guide part (54), and is rotated by inserting a manual key, a key connection hole (65 h) is provided for rotating the fourth lever (65), and the third pressing part protrusion (65A) is connected to one side direction (the first guide part (53) direction) and is engaged with the engagement groove of the hooking groove (53 b) of the first guide part (53).

The fourth lever (65) is engaged with the second hooking portion (43B) of the fifth lever (43) by projecting the densely projecting portion (65A) on one side of the third pressing portion (65A), and a gear portion (65B) which is engaged with the tooth portion (64A) of the third gear (64) is provided on the bottom surface of the key connection hole (65 h).

The fourth lever (65) is rotated automatically by receiving a rotational force from the driving motor (62) or manually by receiving a rotational force of the handle via the fifth lever (43), thereby moving the deadbolt (50) forward and backward.

In particular, in the present invention, the second gear (63) and the third gear (64) having the above-described structure are connected to each other by forming an idle structure using the semicircular groove (63 b), and can be used as a half idle gear.

Specifically, when the drive motor (62) is operated by the outdoor-side safety release device and the lock pin (50) is unlocked, as a reference for the front face of the first gear (61) (the direction seen on the opposite side of the drive motor (62)), when the first gear (61) rotates in the clockwise direction, the second gear (63) engaged with the first gear rotates counterclockwise, at which time the above-mentioned restricting projection (64 b) comes into contact with the rear end of the right side (left side of the rear view of fig. 4) of the semicircular groove (63 b), only after the second gear (63) idles, the restricting projection (64 b) is caught on the left end (right side of the rear view of fig. 4) of the semicircular groove (63 b), the third gear (64) rotates counterclockwise together with the second gear (63) and the third gear (64), the engaged fourth lever (65) rotates in the clockwise direction and engages with the engagement groove (53 b), the third pressing portion (65A) pushes the first guide portion (53) rearward, and the lock pin (50) is retracted into the housing (10).

Meanwhile, when the driving motor (62) is re-operated after the outside or inside door is unlocked, the first gear (61) is rotated counterclockwise by the driving motor (62), the engaged second gear (63) is rotated clockwise, and the above-mentioned restricting projection (64 b) is located at the left (upper right side in the rear view of fig. 4) end portion of the semicircular groove (63 b), after only the second gear (63) is turned empty, the restricting projection (64 b) is caught at the right (upper left side in the rear view of fig. 4) end portion of the semicircular groove (63 b), and the third gear (64) is rotated in the clockwise direction, and when the third gear (64) is rotated, the engaged fourth lever (65) is rotated counterclockwise, and the third pressing portion (65A) combined backward pushes the first guide portion (53) forward, and the locking pin (50) is moved forward while the padlock portion (51) is pulled out of the housing (10).

Further, according to the different choices of the user, when the user directly rotates the fourth lever (65) by using a manual key at the outdoor side or operates the handle and rotates the handle shaft (30) at the indoor side, the locking or unlocking of the door can be realized,

The fourth lever (65) is rotated by hand by the manual key or the first unlocking means (40), the third gear (64) engaged with the fourth lever (65) is also rotated together in the clockwise or counterclockwise direction, at this time, the rotation of the third gear (64) is limited to the length of the semicircular groove (63 b) of the second gear (63) (the length of the arc or the length of the non-contact section of the limiting projection (64 b)), the limiting projection (64 b) is not caught on the semicircular groove (63 b), the second gear (63) is not rotated, only the third gear (64) is rotated, as a result, the third gear (64) is rotated in the air, the rotational force of the fourth lever (65) is not transmitted to the first gear (61), and after the unidirectional operation of the drive motor (62) is completed, no external force in the other direction is applied to the drive motor, thereby preventing the load from being generated by the motor.

This "no load lost motion" feature can fundamentally shut off external force (release load applied to the engine) applied and transferred to the drive engine (62) by rotation of the fourth lever (65) when the guided access of the deadbolt (50) is manually operated, and prevent reduced engine life and performance by the direct connection structure of the deadbolt (50) with manual operation.

Meanwhile, in order to sense the position of the locking bolt (50), the second unlocking device (60) further comprises a control unit (56) provided with photoelectric couplers (56 a) (56 b), so that the forward and backward movement position of the locking bolt (50) can be fed back.

More specifically, a control unit (56) provided below a main body (52) portion of the deadbolt (50) controls rotation by driving a power on/off (on/off) of the engine, and when the deadbolt (50) moves forward, a blocking portion (54 b) of the main body (52) blocks light sensed by the first photo coupler (56 b), and when the deadbolt (50) moves backward, a blocking portion (54 b) of the main body (52) blocks light sensed by the second photo coupler (56 b), so that an end position of the forward and backward movement of the deadbolt (50) can be fed back.

In addition, the invention also comprises: a trigger (70) which moves back and forth by contact or non-contact of the impact part when the door is opened or closed, and a tact switch which senses whether the trigger (70) is introduced or not.

In order to reduce the width toward the front end, the trigger (70) is provided with inclined surfaces on both sides, a second guide projection (71) projects on one surface of the trigger (70) on the rear end side, and the trigger (70) is guided to move forward or backward at the engagement sliding position of the second guide groove (16) of the housing (10).

The tact switch is disposed above or below the trigger (70) according to a position where the trigger (70) is moved forward or backward by sensing whether the trigger (70) is touched or not.

Therefore, when the door is closed, the trigger (70) is pressed by the impact part of the door frame and pulled into the front panel (11), and in this state, the trigger (70) presses the tact switch to transmit a signal of the closed state of the door to the control unit (56).

When the door is opened, the trigger (70) is pulled out of the front panel (11), and in this state, the pressing of the tact switch (72) is contacted, and the signal to be transmitted to the control unit (56) is interrupted, thereby sensing whether the door is opened or in relation.

In order to be pulled out of the front panel (11) by a third torsion spring (73), the trigger (70) is elastically supported.

It should be understood that while the present invention has been described above and illustrated with reference to the attached drawings, the present invention is capable of numerous modifications, alterations and substitutions by one of ordinary skill in the art, however, these modifications, alterations and substitutions are also within the scope of the present invention.

Those skilled in the art will appreciate that the above-described modifications may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and are not described herein. Such modifications do not affect the essence of the present invention, and are not described herein.

The preferred embodiments of the present invention have been described above. It is to be understood that the invention is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art will make many possible variations and modifications, or adaptations to equivalent embodiments without departing from the technical solution of the present invention, which do not affect the essential content of the present invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (2)

1. A mortise for improving assemblability and operational stability, characterized by comprising:

A housing having a front panel closely coupled to an impact piece of the door frame;

a latch bolt connected to make the front panel protrude to the outside and capable of moving back and forth;

A handle shaft comprising: a first shaft seal which is connected to be rotatable and protrudes to the outer surface of one side of the housing, a second shaft seal which protrudes to the outer surface of the other side of the housing and is connected to the inner side section of the first shaft seal so as to rotate in a free manner, a first stopper which is connected to be hung on one side of the first lever so as to protrude to the outer side surface of the first shaft seal, and a second stopper which is connected to be hung on the other side of the second lever so as to protrude to the outer side surface of the second shaft seal; the first shaft seal and the second shaft seal are engaged with each other in a circular structure corresponding to each other in an air-rotatable manner, the outer peripheral surface of the male engagement portion is recessed to form a groove, and the inner peripheral surface of the female engagement portion is projected with a restricting projection inserted into the groove;

the first unlocking device comprises a first lever, a second lever, a third lever, a fifth lever and a first elastic spring;

The first lever is connected to the outer side of the first shaft seal and can make the latch bolt move back and forth through rotation when the outside handle is operated;

The second lever is connected to the outer side of the second seal, and the latch bolt can be moved back and forth by rotating the second lever when the indoor side handle is operated;

The third lever is connected to the outer side of the second shaft seal, and the locking bolt can move back and forth by rotating when the indoor side handle is operated;

the second unlocking device comprises a driving engine, a second gear, a circular protrusion, a third gear and a fourth lever;

the driving engine comprises a first gear;

the second gear is meshed with the first gear;

A circular groove is formed in the center of the bottom of the second gear; the periphery of the circular groove forms a semicircular groove; the diameter of the semicircular groove is larger than that of the circular groove;

the third gear comprises a circular protrusion and a limiting protrusion;

The shape and the size of the circular protrusion are matched with those of the circular groove; the circular protrusion is inserted into and combined with the circular groove;

The limit projection protrudes from the periphery of the circular projection; the limit protrusion is arranged in the semicircular groove;

a tooth part is formed on one side of the outer peripheral surface of the third gear;

the tooth part of the third gear is meshed with the fourth lever;

two ends of the fifth lever are respectively hung on the third lever and the fourth lever;

when the third lever is rotated in one direction to enable the lock pin to move backwards, the fifth lever rotates the fourth lever, the first elastic spring elastically supports the fifth lever, and the first elastic spring can enable the fifth lever to rotate in the opposite direction.

2. A mortice for improving assemblability and operational stability according to claim 1,

The lock bolt of the mortise includes the following features: a plurality of padlock parts protruding from the front panel, a main body part connected to the rear end of the padlock parts, a pair of guide parts connected to the rear end of the main body part and arranged at a distance from each other, guide grooves formed along the length direction of the respective guide parts,

The above-described housing of the mortise includes the following features: protruding from the inner side of one side of the cover and slidably engaged with the protruding ends of the respective guide grooves of the locking pin.