CN211229815U - Push-pull room door lock - Google Patents

Abstract

The utility model discloses not only closing the door in the mysterious way but also can starting through push-pull action at the door, then infant and old man that is difficult for the removal also can operate handle portion easily and switch the door, possess in addition through the contact or break away from the rotatory clutch portion of start latch bolt, the structure of simplification lock portion, and the inclined plane is relieved in the guide that forms with certain angle slope in the one side of rotary control key, also can easily release the lock in the room, pressurized ball and spring have been possessed in clutch portion inside, can the full start latch bolt.

Description

Push-pull room door lock

Technical Field

The utility model discloses possess about room with push-pull lock, more specifically say in detail, inconvenient infant and old person etc. also can simple operation handle portion to push-pull lock is used in the room that the push-and-pull action starts, still possess for latch bolt and door adapter can be fully from and the plug-type room of the pressurization ball of subsidising the push-and-pull lock is used in ball spring.

Background

Generally, a door lock started by opening and closing a door is characterized in that one side surface of the door lock is formed into an arc surface, the opposite side surface of the door lock is provided with a latch bolt formed by a straight surface part, the arc part is pushed into the lock body by pressure during closing the door and then returns, and the latch bolt is inserted into a bolt hole on a bolt guide plate arranged in a door frame to lock the door lock; when the door is opened, the latch bolt is inserted into the lock body according to the action of the rotary handle, and the unlocking device for opening the door is completed according to continuous push-pull actions.

With the development of such door lock technology, recently, a door lock has been developed in which a latch bolt is actuated only when a push button switch or a lever is pressed to complete opening and closing, and a push-pull door lock is marketed in a structure in which a latch bolt on a door lock is actuated when a push button switch or a lever is pressed.

Here, korean laid-open publication No. 10-0873401 is referred to as a conventional push-pull door lock technical document.

Therefore, the original push-pull door lock needs a matched square mortise plate for the door lock for the simple action of the latch bolt and the fixed bolt, is suitable for a locking system which needs to be safe and firm like a door which is closed in the entryway, is a relatively complex mode, and has the problems of poor using effect, unnecessary installation cost and the like on the locking system which is in a simple mode like a room door in home.

This is because the control lever has a very small starting movement in comparison with the conventional latch-type door lock, and thus a complicated mechanical coupling structure is required to obtain a sufficient force for the traveling dead bolt, and a larger volume of the lock body is required due to the complicated mechanical coupling structure, which has structural limitations.

On the other hand, the door lock installed on the existing room door is a swing handle type, that is, a door lock which is rotated to actuate the latch bolt after a user generally grasps a handle. As described above, the push-pull door lock is a door lock in which a user can actuate a latch bolt by pushing or pulling the push-pull door lock without holding a handle, and is a technology that has not been available in the prior art.

Recently, many door lock technologies for room doors have been developed, which are connected to the push-pull technology, but they have problems of poor use effect, unnecessary installation cost, and the like, and thus they cannot be used, and there has been a problem that the push-pull door lock for room doors, which is manufactured by changing the structure and reducing the volume, cannot be satisfactorily operated.

Disclosure of Invention

The utility model relates to a solve the problem and create on the above-mentioned prior art, the utility model discloses a not only on closing the door, but also possess the push-pull lock on the room door, make inconvenient infant and old man of action etc. also can easy to operate hand portion completion switch lock, and possess only through removing and break away from the door adapter that starts the gyration of latch bolt, simplify the mortise plate structure, the slope that the angle of regulation formed in the gyration control button one side is removed and is guided the inclined plane, make and untie the lock easily in the room, possess inside pressurization ball and the ball spring that subsidiarily promote the latch bolt of door adapter, provide the push-pull lock for the door that can fully start the latch bolt.

The technical scheme of the utility model is that: a push-pull door lock for a door, which is developed to achieve the above object, is a push-pull door lock that is installed in a door, activates a latch bolt by a push-pull operation, is inserted into a side surface of the door, is configured as a box-shaped latch part, is attached to a rear surface of the door, has an outside handle part having an outside key inside attached to a front surface of the door, and has an inside handle part having an inside key inside; the latch part is inserted into the side of the door, in order to make the latch bolt rotate, the latch bolt contacts one surface of the latch body and the latch bolt, a door adapter controlling the rotation of the latch bolt and a clutch channel extending behind the door adapter are inserted, a fixed sheet attached to the inner wall of the latch body and one surface of the bolt are formed, a hanging sheet with enlarged area, a bolt driving ball in a shape of a collar hook connected to the hanging sheet, a rotation driving part connected to the rotation driving part, and a rotation control key connected to the rear part of the rotation driving part and controlling the rotation of the rotation driving part.

The door adapter is installed on the adapter body contacting with the latch bolt, the adapter body has an adapter hole penetrating through the center part thereof and is installed in the adapter hole to pressurize one surface of the latch bolt, a tubular adapter tube extending behind the adapter body and inserted into the clutch, and a ball spring provided inside the adapter tube to pressurize the pressurized ball.

The door adapter is formed on one surface of the adapter body, a hooking convex point protruding in the direction of the latch bolt is formed on one surface of the contact surface, and a latching hole is formed on one surface of the latch bolt so as to be positioned inside the hooking convex point.

The clutch driving part is a rotary hinge part which is bent inside the hanger piece, is formed with a driving piece provided on the upper and lower parts of the hanger piece and a central part of the driving piece, and is connected with the inner wall of the body so that the driving piece can rotate.

The rotary driving part is formed into a cylindrical outer driving body connected with the outer key, an outer driving bulge contacted with one surface of the outer driving body, an outer control hole for arranging the rotary control key on the side surface of the outer driving body and inserting the rotary control key, a cylindrical inner driving body connected with the inner key, an inner driving salient point contacted with one surface of the inner driving body and an inner control hole for arranging the rotary control key on the side surface of the inner driving body and inserting the rotary control key.

The rotation control key is formed on one side of the key body and the cylindrical key body moved to the front and rear of the lock body, and is formed on one side of the outer control protrusion and the outer control protrusion inserted into or separated from the outer control hole, and is formed as an inner control protrusion inserted into or separated from the inner control hole.

Forming a guide releasing inclined surface inclined at a certain angle on one surface of the inner control convex point; a guide release inclined hole having an angle inclined corresponding to the guide release inclined surface is formed in an inner peripheral surface of the inner control hole.

The outer handle part is a box-shaped outer handle and cover which are attached to the back of the door and connected to the back of the outer handle cover, and a rod-shaped outer control rod which rotates in the front-back direction and a rod-shaped outer control rod which protrudes in front of the outer control rod, and an outer control rod □ □ □ □ which rotates in the vertical direction, and an outer lifting area which is connected to the outer control rod and lifts in the vertical direction, and an outer bump and an outer hole which protrude from the front of the outer lifting area.

The inner handle part is a box-shaped inner handle cover attached to the back of the door, a rod-shaped inner control rod connected to the back of the outer handle cover and rotating in the front-back direction, and an inner protruding point and an inner hole connected to the inner lifting area and the inner protruding point and the inner hole.

An outer auxiliary control rod formed at the lower part of the outer control rod and extending from the lower part; an inner auxiliary control rod extending from the lower part is formed at the lower part of the inner control rod.

The utility model discloses has following effect.

Firstly, the push-pull door lock can be started not only on the door of the room but also on the door of the room, so that an infant or an old with inconvenient actions can easily operate and conveniently open and close the door;

second, the lock body is provided with a control lever, the rotation of the latch bolt can be conveniently controlled through the reciprocating movement of the control lever, and the structure of the lock body part is reduced;

thirdly, the driving sheet for starting the control rod is arranged at the upper part and the lower part, and the control rod can be easily retracted no matter the outer handle part or the inner handle part is started in any direction;

fourthly, a guide release inclined plane inclined at a certain angle is formed on one surface of the rotary control key, so that the door lock can be easily released in a room to open the door;

fifth, a pressurizing ball and a ball spring are provided in the control lever, so that the latch bolt and the lock body can be easily separated from each other by the lubricating oil, and the latch bolt can be fully actuated.

Drawings

Fig. 1 is a schematic view of the installation state of the push-pull door lock of the present invention;

fig. 2 is a schematic view of the push-pull door lock according to the present invention in an exploded state;

fig. 3 is an exploded view of the latch of the present invention;

fig. 4 is a schematic view of a part of effect sequence of the effect of the latch part of the present invention;

FIG. 5 is a schematic diagram of the sequence of partial effects of the bolt part effect of the present invention;

fig. 6 is a partial perspective view and a schematic plan view of the rotary control key of the present invention;

FIG. 7 is a schematic plan view of the effect of the rotating control key of the present invention;

fig. 8 is a perspective view and an exploded schematic view of the handle portion of the present invention;

FIG. 9 is a side view and a front view of the handle portion effect of the present invention;

fig. 10 is a perspective view of the auxiliary lever of the present invention.

Detailed Description

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

Referring to fig. 1 and 2, fig. 1 and 2 show a push-pull type room door lock, which is provided on a door (D) and actuates a latch bolt (2) by a push-pull action, characterized in that: comprises a box-shaped lock part (10) inserted into the side surface of the door (D) and used for accommodating the latch bolt (2), an outer handle part (20) attached to the front surface of the door and provided with an outer key (21), and an inner handle part (30) attached to the back surface of the door and provided with an inner key (31); the box-shaped lock part (10) comprises a box-shaped clutch box body (11) which can accommodate the latch bolt (2) in order to enable the latch bolt (2) to rotate, a clutch part (12) which is contacted with one surface of the latch bolt (2) and controls the rotation of the latch bolt (2), a clutch load extending to the rear on one surface of the clutch part (12), a fixing piece (14) attached to the inner wall of the clutch box body (11), the clutch device is characterized in that a hanging sheet (15) with an expanded area is formed on one surface of a clutch lever (13), a clutch driving part (16) connected with the hanging sheet (15), a rotary driving part (17) connected with the outer side key (21) and the inner side key (31) and used for rotating the clutch driving part (16), and a rotary control key (18) connected with the rear part of the rotary driving part (17) and used for controlling the rotation of the rotary driving part (17).

Specifically, the present invention includes a latch bolt (2) which is installed on a door (D) and is actuated by a push-pull operation, a box-shaped lock portion (10) which is inserted into a side surface of the door (D) and receives the latch bolt (2), and a box-shaped lock portion which is attached to a rear surface of the door (D) and actuates the latch bolt (2) to protrude in a direction of the box-shaped lock portion (10). An outer handle part (20) with an outer key (21) at the inner side and an inner handle part (30) attached to the front surface of the door (D) and provided with an inner key (31) at the inner side to project in the direction of the lock part (10) for actuating the latch bolt (2).

In this case, the lock portion (10) is configured as shown in fig. 3 to 5: a clutch part (12) inserted into the side surface of the door (D) to make the latch bolt (2) rotatably accommodated in a box-shaped clutch box body (11), contacting one surface of the latch bolt (2) to control the rotation of the latch bolt (2), a clutch lever (13) extending from one surface of the clutch part (12) to the rear, and inserted into the clutch lever (13); a lever fixing piece (14) adhered to the inner wall of the clutch box body (11), a hanging piece (15) formed on one side of the clutch lever (13) and having an expanded area, a hook-shaped clutch driving part (16) connected to the hanging piece (15), a rotary driving component (17) respectively connected to the outer key (21) and the inner key (31) and respectively rotating the clutch driving part (16), and a rotary control key (18) connected to the rear part of the rotary driving part (17) and controlling the rotation of the rotary driving component (17).

Further, it is preferable that a coil spring-like spring (S) is provided between the lever fixing piece (14) and the clutch section (12) so that the clutch section (12) retreated by the clutch driving section (16) can be restored to the normal position again on the outer surface of the clutch lever (13).

Further, the clutch portion (12) is formed as indicated in fig. 5: a clutch body (121) contacting the latch bolt (2), a clutch hole (122) penetrating the center of the clutch body (121), a spherical pressurizing ball (123) installed in the clutch hole (122) and pressurizing one surface of the latch bolt (2), a tubular clutch pipe (124) extending from the rear of the clutch body (121) and inserted into the clutch lever (13), and a ball spring (125) provided inside the clutch pipe (124) and pressurized by the pressurizing ball (123).

The size of the lever hole (122) is smaller than the diameter of the pressurizing ball (123), and preferably, the lever hole protrudes from the clutch body (121) of the pressurizing ball (123) and is perforated so as to be capable of contacting the latch bolt (2).

A contact surface (126) formed on one surface of the clutch body (121) and recessed from one surface of the latch bolt (2) by a curved surface similar thereto, and a hook protrusion (127) formed on one surface of the contact surface (126) and protruding in the direction of the latch bolt (2); a latch bolt groove (2a) for receiving the hooking protrusion (127) and forming a belt sill from the inside is formed on one surface of the latch bolt (2).

On the other hand, it is preferable that the contact surface (126) is coated with a lubricating oil such as grease to reduce friction when contacting the latch bolt (2).

The clutch drive unit (16) is configured as indicated in fig. 4: the inner side of the hanging piece (15) is bent and follows a pair of driving pieces (161) positioned at the upper part and the lower part of the hanging piece (15) and a rotating hinge part (162) which is formed at the center part of the driving pieces (161) and can rotate the driving pieces (161) and is connected to the inner wall of the lock core body (11).

The rotary driving member (17) is configured as indicated in fig. 3 to 4: a cylindrical outer drive body (171) connected to the outer key (21), an outer drive protrusion (172) contacting the clutch drive part (16) on one side surface of the outer drive body (171), an outer control groove (173) capable of being fitted to the rotation control key (18) and recessed in the inner direction on the other side surface of the outer drive body (171), a cylindrical inner drive body (174) connected to the inner key (31), and an inner drive protrusion (175) contacting the clutch drive part (16) on one side surface of the inner drive body (174) and an inner control groove (176) capable of being fitted to the rotation control key (18) and recessed in the inner direction on the other side surface of the inner drive body (174).

On the other hand, the outer drive lug (172) and the inner drive lug (175) are preferably configured in a shape in which the diameter of the end portion thereof is expanded by engaging the rear end portion of the clutch drive section (16).

At this time, the rotation control key (18) is formed as indicated in fig. 6: a cylindrical key body 181 moving forward and backward of the lock body 11, an outer control protrusion 182 formed on one side of the key body 181 and inserted into or removed from the outer control groove 173, and an inner control protrusion 183 formed on one side of the outer control protrusion 182 and inserted into or removed from the inner control hole 176.

On the other hand, the key body 181 is inserted into the rotation control key 18 and fixed to the inner wall of the lock body 11, and the key body 181 can be moved back and forth from the front to the rear, and a square tubular key body receiving area (not shown) into which the key body 181 is inserted is preferably formed.

Here, the inner control bumps (183) are formed on one surface as indicated in fig. 7: a release guide inclined surface (184) inclined at a predetermined angle; a release guide inclined groove (176a) inclined at an angle corresponding to the release guide inclined surface (184) is formed in the inner peripheral surface of the inner control groove (176).

The outer handle portion (20) is formed as indicated in fig. 8 to 9: a box-shaped outer handle cover (22) attached on the back of the door (D), a rod-shaped outer lever (23) connected with the back of the outer handle cover (22) and rotating in the front-back direction, an outer lever handle (24) protruding in front of the outer lever (23) and rotating in the vertical direction, an outer lifting ball (25) connected with the outer lever handle (24) and lifting in the vertical direction, an outer salient point (26) protruding on the front surface of the outer lifting ball (25), an outer groove (27) inserted into the outer salient point (26) and capable of rotating the outer key (21), and a position separated from the central axis of the outer key (21) by a certain distance.

The inner handle (30) is formed such that: a box-shaped inner handle cover (32) attached to the rear surface of the door (D), a rod-shaped inner lever (33) connected to the rear surface of the inner handle cover (32) and rotating in the front-rear direction, an inner lever handle (34) protruding in front of the inner lever (33) and rotating in the vertical direction, an inner lifting part (35) connected to the inner lever handle (34) and lifting in the vertical direction, an inner protruding point (36) protruding in the front of the inner lifting ball (35), and an inner groove (37) perforated at a position separated by a certain distance from the central axis of the inner key (31) due to the insertion of the inner protruding point (36) and the rotation of the inner key (31).

On one hand, the outer handle cover (22) and the inner handle cover (32) are preferably provided with a plate-shaped casing (C) for closing the open parts of the outer handle cover (22) and the inner handle cover (32).

Moreover, as indicated in fig. 10, formed below the above-mentioned outer lever (23): an outer auxiliary lever (28) extending from below; formed under the inner lever (33): an inboard auxiliary lever (38) extends below.

According to above structure formation the utility model discloses start-up process of push-pull lock for room door is as follows.

According to the utility model discloses a push-pull lock for door is like that marks as figure 1 ~ 2, sets up push-pull lock (R) that starts latch bolt (2) through the push-and-pull action at door (D).

That is, the door comprises a box-shaped lock portion (10) inserted into a side surface of the door (D) to accommodate the latch bolt (2), and an outer handle portion (20) and an inner handle portion (30) for actuating the latch bolt (2) by a push-pull operation, whereby the lock portion (10) can be actuated.

Through the above, the push-pull type door lock (R) started by the push-pull type does not need the original mode that the door can be opened by rotating after holding the handle, so that the infant and the old with inconvenient actions can easily open and close the door (D) by simply and conveniently operating the handle part.

At this time, the same mark as that of fig. 5 is formed on the inside of the door adaptor (10): a clutch part (12) for controlling the rotation of the latch bolt (2), wherein the rotation of the latch bolt (2) is controlled under the state that the clutch part (12) is contacted with the latch bolt (2), and the latch bolt (2) can be freely rotated under the state that the clutch part (12) is separated from the latch bolt (2).

A hook protrusion 127 protruding in the direction of the latch bolt 2 is formed on one surface of the clutch part 12, a latch bolt recess 2a is formed on one surface of the latch bolt 2, and the rotation of the latch bolt 2 is controlled by the movement of the clutch part.

A hook-shaped clutch driving part (16) which is connected to the outer key (21) and the inner key respectively, is connected to a rotary driving member (17) and pulls up the clutch part (12), and is provided behind the clutch part (12) as shown in fig. 4; when the rotation driving member (17) rotates, the clutch driving part (16) rotates in the opposite direction by leverage, and the clutch part (12) is easily pulled backward.

In this case, the clutch drive section (16) is a drive plate (161) having a pair of upper and lower portions, and the clutch section (12) can be retracted regardless of the rotational direction of the rotary drive member (17), that is, regardless of whether the outer handle section (20) or the inner handle section (30) is actuated in any direction.

A spring (S) for elastically pressing the clutch section (12) is provided behind the clutch section (12), and the clutch section that has retreated can be returned to the original position by the clutch driving section (16).

The rotation driving part (17) is respectively composed of a cylindrical outer driving body (171) connected with an outer key (21) and a cylindrical inner driving body (174) connected with the inner key (31), and the outer handle part (20) or the inner handle part (30) can be independently started, so that the work of starting in the room and the work of starting outside the room can be distinguished.

In this case, a rotation control key 18 for controlling the rotation of the rotation driving unit 17 is provided behind the rotation driving unit 17, the rotation of the rotation driving unit 17 can be controlled, and the rotation control key 18 is moved to the front and rear of the lock body 11 by an external key to rotate or fix the rotation driving unit 17.

Here, as shown in fig. 6 to 7, the rotation control key (18) is formed with an outer control protrusion (182) inserted into or removed from the outer control hole (173) or an inner control protrusion (183) inserted into or removed from the inner control hole (176), and the rotation of the outer drive body (171) and the inner drive body (174) can be controlled or released when the rotation control key (18) moves.

Here, the above-mentioned rotary control key (18) is formed as indicated in fig. 6 to 7: an outer control protrusion (182) inserted into or removed from the outer control groove (173) or an inner control protrusion (183) inserted into or removed from the rotation control groove, wherein the rotation control key can control or release the rotation of the outer drive body (171) and the inner drive body (174) when moving.

On one hand, on one side of the inner control protrusion (183) is formed as indicated in fig. 7: a release guide inclined surface (184) inclined at a predetermined angle; a release guide inclined groove (176a) inclined at an angle corresponding to the release guide inclined surface (184) is formed on the inner peripheral surface of the inner control groove (176), and when the inner drive body (174) rotates, that is, when the inner handle (30) provided inside the room rotates, the rotation control key (18) can be unlocked by the release guide inclined surface (184) even when the rotation control key (18) is locked, and the door lock can be easily unlocked even inside the room.

In the clutch part (12), as shown in fig. 5, in order to prevent the latch bolt (2) and the clutch body (121) from being stuck together by various kinds of lubricating oil and not being disengaged, a spherical pressurizing ball (123) for pressurizing one surface of the latch bolt (2) is provided, thereby preventing the latch bolt (2) from being easily disengaged from the clutch body (121) in advance.

Here, the latch bolt (2) is pressurized by a pressurizing ball (123) elastically received in the clutch pipe (124) by a spring (125) through the clutch hole (122), so that the latch bolt (2) can be easily disengaged from the clutch body (121) and the latch bolt (2) can be fully actuated.

The outer handle part (20) and the inner handle part (30) rotate the outer key (21) and the inner key (31) through the outer hole (27) and the inner hole (37) which are separated by a certain distance on the central axis when the outer protrusion (26) or the inner protrusion (36) is lifted and lowered, as shown in fig. 8 to 9.

Further, as shown in fig. 10, an outer auxiliary lever 28 and an inner auxiliary lever 38 are formed at lower portions of the outer lever 23 and the inner lever 33, so that the door lock R can be easily operated by an infant or an elderly person.

The present invention is not limited to the specific possible embodiments described above, and any person who has common knowledge in the technical field of the present invention can be modified and executed without departing from the gist of the present invention in the claims, and such modifications are within the scope described in the claims.

Description of the reference numerals

D, a door; r is a door lock;

s, a spring; c, a shell;

2, a latch bolt; 2a, a spring bolt slot;

10, a lock portion; 11, a lock body;

12: a door adapter; 121, a clutch body;

122, clutch hole; 123, a pressurizing ball;

124, a clutch tube; 125, a spring;

126, contact surface; 127 hanging the salient points;

13, a clutch lever; 14, a rod fixing piece;

15, hanging the connecting piece; 16, a clutch driving part;

161 driving sheet; 162 rotating hinge part;

17, a rotation driving part; 171, an outer driving body;

172, outer drive bump; 173 outer control groove;

174 inner drive body; inner drive bump 175;

176 inner control groove; 176a guide release inclined groove;

18, rotating the control key; 181 is a key body;

182, outer control bumps; 183 inner side control salient point;

184, guiding and releasing the inclined surface; 20, an outer handle part;

21, an outer key; 22, outer handle cover;

23, an outer control rod; 24, an outer control rod loading part;

25, an outer lifting area; 26, outer salient points;

27, an outer groove; 28, an outer auxiliary control rod;

30, an inner handle part; 31, an inner key;

32, inner handle cover; 33, inner control rod;

34 inner control rod loading part; 35, an inner lifting area;

36, inner salient points; 37, an inner side groove;

38, inner auxiliary control rod.

Claims (11)

1. The utility model provides a plug-type room lock, sets up on door (D), through push-and-pull action start-up latch bolt (2), its characterized in that: comprises a box-shaped lock part (10) inserted into the side surface of the door (D) and used for accommodating the latch bolt (2), an outer handle part (20) attached to the front surface of the door and provided with an outer key (21), and an inner handle part (30) attached to the back surface of the door and provided with an inner key (31); the box-shaped lock part (10) comprises a box-shaped clutch box body (11) which can accommodate the latch bolt (2) in order to enable the latch bolt (2) to rotate, a clutch part (12) which is contacted with one surface of the latch bolt (2) and controls the rotation of the latch bolt (2), a clutch load extending to the rear on one surface of the clutch part (12), a fixing piece (14) attached to the inner wall of the clutch box body (11), the clutch device is characterized in that a hanging sheet (15) with an expanded area is formed on one surface of a clutch lever (13), a clutch driving part (16) connected with the hanging sheet (15), a rotary driving part (17) connected with the outer side key (21) and the inner side key (31) and used for rotating the clutch driving part (16), and a rotary control key (18) connected with the rear part of the rotary driving part (17) and used for controlling the rotation of the rotary driving part (17).

2. A push-pull room door lock according to claim 1, wherein: the clutch part (12) includes a clutch body (121) contacting the latch bolt (2), a clutch hole (122) penetrating the center of the clutch body (121), a spherical pressurizing ball (123) installed in the clutch hole (122) and pressurizing one surface of the latch bolt (2), a tubular clutch pipe (124) extending behind the clutch body (121) and inserted into the clutch lever (13), and a spring (125) provided inside the clutch pipe (124) and pressurizing the pressurizing ball (123).

3. A push-pull room door lock according to claim 2, wherein: a contact surface (126) having a curved surface similar to that of one surface of the latch bolt (2) and provided on one surface of the clutch body (121) of the clutch part (12), wherein a protruding hooking protrusion (127) engaged with the latch bolt (2) is provided on one surface of the contact surface (126); a latch bolt slot (2a) which is matched with the hanging salient point (127) and can be inserted from the inner side is arranged at the corresponding position of the latch bolt (2).

4. A push-pull room door lock according to claim 1, wherein: the clutch driving part (16) is formed by a pair of driving pieces (161) which are bent at the inner side of the hanging piece (15) and are arranged at the upper and lower parts of the hanging piece (15), and a rotating hinge part (162) which is formed at the center part of the driving pieces (161) and is rotatably connected with the inner wall of the lock body for the driving pieces (161).

5. A push-pull room door lock according to claim 1, wherein: the rotary driving part (17) is composed of a cylindrical outer driving body (171) connected with the outer key (21) and an outer driving salient point (172) contacted with one side surface of the outer driving body (171), an outer control groove (173) inserted in the inner direction on the side surface of the outer driving body (171) for arranging the rotary control key (18) and a cylindrical inner driving body (174) connected with the inner key (31), an inner driving salient point (175) contacted with one side surface of the inner driving body (174) and an inner control groove (176) inserted in the inner direction on the side surface of the inner driving body (174) for arranging the rotary control key (18).

6. A push-pull room door lock according to claim 5, wherein: the rotation control key (18) is a key body (181) formed in a cylindrical shape that moves in the front-rear direction of the lock body, an outer control protrusion (182) formed on one side surface of the key body (181) and inserted into or removed from the outer control groove (173), and an inner control protrusion (183) formed on one side surface of the outer control protrusion (182) and inserted into or removed from the inner control groove (176).

7. A push-pull room door lock according to claim 6, wherein: a guide releasing inclined surface (184) inclined at a certain angle is formed on one surface of the inner control convex point (183); a guide release inclined groove (176a) having an inclined angle corresponding to the guide release inclined surface (184) is formed in the inner peripheral surface of the inner control groove (176).

8. A push-pull room door lock according to claim 1, wherein: the outer handle part (20) comprises an outer handle cover (22) which is arranged in front of the door (D) and has a box shape, an outer control rod (23) which is connected with the back of the outer handle cover (22) and can move in the front-back direction, an outer control rod loading part (24) which is protruded in front of the outer control rod (23) and can move in the vertical direction, an outer lifting ball (25) which is connected with the outer control rod loading part (24) and can lift in the vertical direction, an outer protrusion (26) which is protruded on the front surface of the outer lifting ball (25), and an outer groove (27) which is inserted into the outer protrusion (26) and can rotate in order to separate the drilled holes at a preset distance on the central axis of the outer key (21).

9. A push-pull room door lock according to claim 1, wherein: the inner handle part (30) comprises an inner grab handle (32) which is arranged at the back of the door (D) and has a box shape, a rod-shaped inner control rod (33) which is connected at the back of the inner grab handle (32) and can move in the front-back direction, an inner control rod load (34) which protrudes in front of the inner control rod (33) and can move in the vertical direction, an inner lifting ball (35) which is connected with the inner control rod load (34) and can lift in the vertical direction, an inner bulge (36) which protrudes at the front of the inner lifting ball (35), and an inner groove (37) which is inserted into the inner bulge (36) and can rotate at the central shaft of the inner key (31) to separate the drilled holes by a preset distance.

10. A push-pull room door lock according to claim 8, wherein: an outer auxiliary control lever (28) extending from the lower portion is formed at the lower portion of the outer control lever (23).

11. A push-pull room door lock according to claim 9, wherein: an inner auxiliary control lever (38) extending from the lower portion is formed at the lower portion of the inner control lever (33).

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