CN216974434U - Door lock - Google Patents

Abstract

The utility model discloses a door lock, comprising: a lock case; the lock tongue is connected with a slide bar, and the slide bar is connected with the lock shell in a sliding manner so as to push the lock tongue to extend out or retract; the lock is characterized by also comprising an inner square sleeve, an outer square sleeve and a clutch pin, wherein the inner square sleeve and the outer square sleeve are both rotationally connected to the lock shell, the inner square sleeve is connected with a shifting piece, the inner square sleeve is provided with a through hole, the outer square sleeve is provided with a linkage groove, the inner square sleeve is abutted against the outer square sleeve, the clutch pin only penetrates through the through hole in a locking state, and the clutch pin simultaneously penetrates through the through hole and the linkage groove in an unlocking state; the lock is characterized by further comprising a touch sliding block and a safety block, wherein an inclined guide block is arranged on the outer wall of the sliding rod, when the lock tongue retracts, the inclined guide block pushes the safety block to move towards the touch sliding block, the safety block pushes the touch sliding block to touch the clutch pin, and the locking state is changed into the unlocking state. When the lock is closed, the outer handle cannot open the door, and when the door is closed in an unlocking state, the lock tongue collides with the door frame and then retracts into the lock body to be triggered to realize unlocking, so that the situation that a user does not have a key after closing the door and cannot open the door outside is prevented.

Description

Door lock

Technical Field

The utility model relates to the field of hardware locks, in particular to a door lock.

Background

The single-bolt lock commonly used in the prior art has two kinds, one kind is the ball lock, closes the door after, presses the button of locking at indoor ball handle, and the ball handle of outside just can't rotate from the face and realize locking, and another kind is need to install the lock core, closes the door after through rotating the lock core, thereby the unable rotation of outside handle realizes locking.

The outer handles of the two types of locks are fixed after being locked, and after the two types of locks are locked, if a user rotates strongly, the lock body is easy to damage. Present single-bolt door lock presses the back of locking button, and the spring bolt can also be pressed in the lock body, if under the state that the door was opened, the user pressed the back of locking button carelessly, closed the door in this time, if do not take the key, just can't open the door outdoors, and user's use is experienced very inconveniently.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a door lock which can be triggered to unlock when a user closes the door, so that the condition that the user does not have a key after closing the door and cannot open the door outside is prevented.

A door lock according to an embodiment of a first aspect of the present invention includes: a lock case; the lock bolt is connected with a sliding rod, and the sliding rod is connected with the lock shell in a sliding mode so as to push the lock bolt to extend out or retract; the handle assembly comprises an inner square sleeve, an outer square sleeve and a clutch pin, wherein the inner square sleeve and the outer square sleeve are rotatably connected to the lock shell, the inner square sleeve is connected with a shifting piece, the shifting piece is used for shifting the slide bar, the inner square sleeve is provided with a through hole, the outer square sleeve is provided with a linkage groove, the inner square sleeve is abutted against the outer square sleeve, the clutch pin is only arranged in the through hole in a locking state, and the clutch pin is arranged in the through hole and the linkage groove in a penetrating manner in an unlocking state; the base is installed on the lock shell, the base is connected with a movable touch sliding block and a safety block, the top surface of the touch sliding block is an inclined surface, an inclined guide block is arranged on the outer wall of the sliding rod, the safety block is arranged between the inclined surface and the inclined guide block, when the lock tongue retracts, the inclined guide block pushes the safety block to move towards the touch sliding block, the safety block pushes the touch sliding block to touch the clutch pin, and the locked state is converted into the unlocked state.

According to the door lock disclosed by the embodiment of the utility model, at least the following beneficial effects are achieved: during the state of locking, the user rotates or twists the outside cover from the door outside, and the outside cover can only idle running, can't drive the spring bolt withdrawal in order to open the door, and during the state of unlocking, the user rotates or twists the outside cover from the door outside, and the outside cover drives the rotation of inside cover through the linkage of separation and reunion round pin, and then drives the spring bolt withdrawal and realize opening the door. When a user closes the door, the oblique guide block pushes the safety block to move towards the touch sliding block at the moment that the lock tongue collides with the door frame and retracts into the lock shell, the safety block pushes the touch sliding block to move and further touch the clutch pin, the locked state is changed into the unlocked state, even if the user does not have a key to open the door, the user can directly drive the inner square sleeve to rotate by rotating or twisting the outer square sleeve, the door opening is realized, and the use experience of the user is improved.

According to some embodiments of the utility model, a boss is disposed on one side of the touch slider, and when the touch slider moves, the boss can abut against the clutch pin and press the clutch pin into the linkage groove.

According to some embodiments of the utility model, the base is connected with a limiting spring, the end of the limiting spring is connected with a limiting ball, the other side of the touch slider is provided with a limiting groove, and the limiting ball is clamped into the limiting groove.

According to some embodiments of the present invention, the inner square sleeve is provided with an inclined protrusion, the inclined protrusion faces the touch slider and abuts against the boss, and the touch slider is pushed by the inclined protrusion when the inner square sleeve rotates.

According to some embodiments of the utility model, a clutch return spring is connected in the linkage groove, and the clutch return spring abuts against the clutch pin to reset and eject the clutch pin, so that the unlocking state is changed into the locking state.

According to some embodiments of the utility model, the trigger slider is fixedly connected with a clutch button, the outer end of the clutch button is located outside the lock case, and the clutch button is used for driving the trigger slider.

According to some embodiments of the utility model, a guide plate is connected to the lock housing, the safety block is slidably connected to the guide plate, and the guide plate is provided with a slide bar guide slot, and the slide bar is clamped into the slide bar guide slot to limit the sliding direction of the slide bar.

According to some embodiments of the utility model, the guide plate is provided with a safety guide groove, and the safety block is snapped into the safety guide groove to define the moving direction of the safety block.

According to some embodiments of the utility model, a bolt return spring is sleeved on the sliding rod, one end of the bolt return spring abuts against the bolt, and the other end of the bolt return spring abuts against the guide plate.

According to some embodiments of the utility model, the outer square sleeve is connected with a reset rod, the reset rod is abutted with a positioning sheet, the positioning sheet is connected with a square sleeve return spring, one end of the square sleeve return spring is connected to the lock shell, and the other end of the square sleeve return spring is abutted with the positioning sheet.

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

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is a cross-sectional view of a door lock according to an embodiment of the present invention;

FIG. 2 is a three-dimensional schematic view of a door lock according to an embodiment of the present invention;

FIG. 3 is an exploded view of a door lock according to an embodiment of the present invention;

FIG. 4 is a three-dimensional schematic view of an inner and outer sleeve according to an embodiment of the present invention;

fig. 5 is an exploded view of the base and the touch slider according to the embodiment of the present invention.

Reference numerals: the lock comprises a lock shell 100, a lock tongue 110, a sliding rod 111, a lock tongue return spring 112, a guide plate 113, a slant guide block 114, a base 120, a trigger slider 121, a safety block 122, a limit spring 123, a limit bead 124, a boss 125, a clutch button 130, a handle assembly 200, an inner square sleeve 210, a shifting piece 211, a through hole 212, a slant protrusion 213, an outer square sleeve 220, a return rod 221, a linkage groove 222, a square sleeve return spring 223, a positioning piece 224, a clutch pin 230 and a clutch return spring 231.

Detailed Description

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

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

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the essential numbers, and greater than, less than, etc. are understood as including the essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

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

Referring to fig. 1, which is a cross-sectional view of a door lock according to an embodiment of the present invention, the door lock includes a lock housing 100 and a latch tongue 110, wherein the latch tongue 110 is connected to a sliding rod 111, and the sliding rod 111 is slidably connected to the lock housing 100 to push the latch tongue 110 to extend or retract, it can be understood that when a door is closed, the latch tongue 110 extends to close the door, and when the door is to be opened, the latch tongue 110 retracts to pull the door to open. The door opening device comprises a handle assembly 200, an inner square sleeve 210, an outer square sleeve 220 and a clutch pin 230, wherein the inner square sleeve 210 and the outer square sleeve 220 are rotatably connected to the lock shell 100, it can be understood that the inner square sleeve 210 and the outer square sleeve 220 are both connected with a handle or a round wrench, a user can rotate the inner square sleeve 210 and the outer square sleeve 220 by pressing down or gripping force, and the inner square sleeve 210 is connected with a shifting piece 211 for shifting the sliding rod 111 to open the door.

Referring to fig. 2 and 4, the inner square sleeve 210 is provided with a through hole 212, the outer square sleeve 220 is provided with a linkage groove 222, the inner square sleeve 210 abuts against the outer square sleeve 220, when a user needs to realize a locked state, the clutch pin 230 only penetrates through the through hole 212, and in an unlocked state, the clutch pin 230 simultaneously penetrates through the through hole 212 and the linkage groove 222, at this time, the inner square sleeve 210 can be driven to rotate by rotating the outer square sleeve 220, it can be understood that, in the locked state, the user rotates or twists the outer square sleeve 220 from the outside of the door, the outer square sleeve 220 can only idle and cannot drive the lock tongue 110 to retract to open the door, in the unlocked state, the user rotates or twists the outer square sleeve 220 from the outside of the door, the outer square sleeve 220 drives the inner square sleeve 210 to rotate through linkage of the clutch pin 230, and then drives the lock tongue 110 to retract to open the door.

Referring to fig. 3, the door lock of the present invention further includes a base 120 installed on the lock case 100, the base 120 is connected to a movable touch slider 121 and a safety block 122, a top surface of the touch slider 121 is an inclined surface to perform a guiding function, and an inclined guide block 114 is disposed on an outer wall of the sliding rod 111 and is attached to the top surface of the touch slider 121, so that the touch slider 121 can slide along the inclined surface direction under a stress condition. The safety block 122 is disposed between the inclined surface and the inclined guide block 114, and it can be understood that when the locking bolt 110 retracts, the inclined guide block 114 pushes the safety block 122 to move toward the trip slider 121, and the safety block 122 pushes the trip slider 121 to move and further trigger the clutch pin 230, so as to achieve the transition from the locked state to the unlocked state. It can be understood that, when the user closes the door, the moment that the lock tongue 110 strikes the door frame and retracts into the lock case 100 is realized, the door lock enters the unlocking state, even if the user does not open the door with the key, the user can directly drive the inner square sleeve 210 to rotate by rotating or twisting the outer square sleeve 220, the door opening is realized, and the use experience of the user is improved.

Referring to fig. 1, 3 and 5, one side of the trigger slider 121 is provided with a boss 125, when the trigger slider 121 moves, the boss 125 abuts against the clutch pin 230 and presses the clutch pin 230 into the linkage groove 222, it can be understood that, the surface of the trigger slider 121 facing the clutch pin 230, only one side is provided with the boss 125 for triggering the clutch pin 230, and the other side cannot trigger the clutch pin 230, so that the locking and unlocking conversion can be realized by the movement of the trigger slider 121.

Referring to fig. 5, the base 120 is connected with a limiting spring 123, and the end of the limiting spring 123 is connected with a limiting ball 124, so as to increase the contact area and stability of the limiting spring 123, and prevent the spring from slipping and losing limiting effect due to overlarge pressure and smooth contact surface. The other side of the touch sliding block 121 is provided with a limiting groove, and the limiting ball 124 is clamped in the limiting groove to further ensure the stability of the limiting spring 123. It can be understood that, when the boss 125 of the trigger slider 121 abuts against the clutch pin 230, the limiting spring 123 abuts against the trigger slider 121, so that the trigger slider 121 is kept at the current position and abuts against the clutch pin 230, thereby maintaining the unlocking state, and even if a user forgets to take a key after closing the door, the clutch pin 230 always links the inner square sleeve 210 and the outer square sleeve 220, the user can open the door from the outside of the door, the linkage effect cannot be lost due to the free movement of the trigger slider 121, and the use experience of the user is improved.

Referring to fig. 4 and 5, the inner square sleeve 210 is provided with an inclined protrusion 213, the inclined protrusion 213 faces the touch slider 121 and abuts against the boss 125, when the inner square sleeve 210 rotates, an inclined surface of the inclined protrusion 213 abuts against an inclined surface of the boss 125 of the touch slider 121, and the inclined protrusions 213 are inclined surfaces, so that the inner square sleeve 210 rotates to drive the inclined protrusion 213 to further push the touch slider 121. It can be understood that, when the user rotates or screws the inner square sleeve 210 to open the door from the inside of the door, the touch slider 121 is driven by the inner square sleeve 210, and further the touch clutch pin 230 is pressed into the linkage groove 222, and the door lock enters the unlocking state, i.e. the user can rotate or screw the outer square sleeve 220 to open the door from the outside of the door. So the user just need not to be in order to prevent to be unlocked by the outer manual unblanking of door at every turn after opening the door, has promoted user's use and has experienced.

Referring to fig. 3, a clutch return spring 231 is connected in the linkage groove 222, and the clutch return spring 231 abuts against the clutch pin 230, it can be understood that the linkage groove 222 is arranged in the outer square sleeve 220, when the touch slider 121 does not abut against the clutch pin 230, the clutch pin 230 pops out of the linkage groove 222 under the elastic force of the clutch return spring 231, at this time, the outer square sleeve 220 rotates and cannot drive the inner square sleeve 210 to rotate, that is, at this time, the lock state is achieved, and the user cannot open the door from the outside of the door. Referring to fig. 2, a clutch button 130 is fixedly connected to the trip slider 121, an outer end of the clutch button 130 is located outside the lock case 100, and the clutch button 130 is used for driving the trip slider 121. In cooperation with the arrangement of the clutch return spring 231, when the user locks the door lock, the user only needs to move the touch slider 121 through the clutch button 130, so that the locking mode of the user is facilitated, the use experience of the user is further improved, and when the user unlocks indoors, the user can directly touch the position of the touch slider 121 to move to the abutting clutch pin 230 through the clutch button 130, so that the unlocking is realized, and the use selection of the user is enriched.

Referring to fig. 1 and 3, the lock case 100 is connected with a guide plate 113, the safety block 122 is slidably connected with the guide plate 113, the guide plate 113 is provided with a slide bar guide slot, and the slide bar 111 is clamped into the slide bar guide slot, it can be understood that the side wall of the slide bar 111 is abutted against the side wall of the guide slot, and the sliding direction of the slide bar 111 is limited to slide only along the axial direction of the slide bar 111. The risk that the sliding rod 111 is displaced can be greatly reduced, the risk that the bolt 110 cannot be normally extended or retracted and cannot be normally used is also reduced, the maintenance and inspection cost of a user is reduced, and the use experience of the user is improved. On the other hand, the guide plate 113 is further provided with a safety guide groove, and the safety guide groove is clamped into the safety block 122, it can be understood that the side wall of the safety block 122 is tightly attached to the side wall of the safety guide groove to limit the moving direction of the safety block 122, so as to ensure that when the lock tongue 110 retracts, the inclined guide block 114 connected to the slide bar 111 drives the safety block 122 to move, the safety block 122 drives the trigger slider 121 to move, and the trigger slider 121 triggers the clutch pin 230 to realize the whole transmission process of unlocking.

Referring to fig. 1, a bolt return spring 112 is connected to the sliding rod 111, and as can be seen from the figure, the bolt return spring 112 is sleeved on the sliding rod 111, one end of the bolt return spring 112 abuts against one surface of the bolt 110 facing the lock case 100, and the other end of the bolt return spring 112 abuts against the guide plate 113. It can be understood that, when the user opens the door by rotating the handle assembly 200 or the latch tongue 110 is pressed by striking the door frame, the latch tongue 110 retracts into the lock case 100, the latch tongue return spring 112 is compressed by the pressure, and is elastically deformed to generate elastic force, after the user releases the handle assembly 200 or the door frame no longer presses the latch tongue 110, the elastic force of the latch tongue return spring 112 pushes the latch tongue 110 to extend out of the lock case 100, the user does not need to manually extend the latch tongue 110, and the user experience is improved.

Referring to fig. 1, the outer sleeve 220 is connected with a reset rod 221, the reset rod 221 is abutted with a positioning plate 224, the positioning plate 224 is fixed on the lock case 100, the positioning plate 224 is connected with a square sleeve return spring 223, as can be seen from the figure, the square sleeve return spring 223 is sleeved on the positioning plate 224, one end of the square sleeve return spring 223 is connected with the lock case 100, and the other end of the square sleeve return spring 223 is abutted with the positioning plate 224. It can be understood that when the user pressed handle assembly 200 from the door outward, when driving outside cover 220 and rotating, release link 221 pushed down locating piece 224 and oppressed square cover reset spring 223 and take place elastic deformation, produced elasticity, and after the user loosened handle assembly 200, square cover reset spring 223 promoted outside cover 220 through elasticity and rotated original position, and the user need not manually to reset handle assembly 200, has promoted user's use and has experienced.

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

Claims (10)

1. A door lock, comprising:

a lock case;

the lock bolt is connected with a sliding rod, and the sliding rod is connected with the lock shell in a sliding mode so as to push the lock bolt to extend out or retract;

the handle assembly comprises an inner square sleeve, an outer square sleeve and a clutch pin, wherein the inner square sleeve and the outer square sleeve are rotatably connected to the lock shell, the inner square sleeve is connected with a shifting piece, the shifting piece is used for shifting the slide bar, the inner square sleeve is provided with a through hole, the outer square sleeve is provided with a linkage groove, the inner square sleeve is abutted against the outer square sleeve, the clutch pin is only arranged in the through hole in a locking state, and the clutch pin is arranged in the through hole and the linkage groove in a penetrating manner in an unlocking state;

the base is installed on the lock shell, the base is connected with a movable touch sliding block and a safety block, the top surface of the touch sliding block is an inclined surface, an inclined guide block is arranged on the outer wall of the sliding rod, the safety block is arranged between the inclined surface and the inclined guide block, when the lock tongue retracts, the inclined guide block pushes the safety block to move towards the touch sliding block, the safety block pushes the touch sliding block to touch the clutch pin, and the locked state is converted into the unlocked state.

2. The door lock of claim 1, wherein a side of the activation slide is provided with a projection that can abut the clutch pin and press the clutch pin into the linkage slot when the activation slide moves.

3. The door lock according to claim 2, wherein the base is connected with a limiting spring, the end of the limiting spring is connected with a limiting ball, the other side of the touch sliding block is provided with a limiting groove, and the limiting ball is clamped into the limiting groove.

4. The door lock of claim 2, wherein the inner sleeve is provided with a tilt protrusion facing the touch slider and abutting against the boss, and the touch slider is pushed by the tilt protrusion when the inner sleeve rotates.

5. The door lock according to claim 1, wherein a clutch return spring is connected to the linkage groove, and the clutch return spring abuts against the clutch pin to return and eject the clutch pin, thereby achieving the transition from the unlocked state to the locked state.

6. The door lock of claim 1, wherein a clutch button is fixedly connected to the trip slider, an outer end of the clutch button is located outside the lock case, and the clutch button is used for driving the trip slider.

7. A door lock according to claim 1, wherein a guide plate is connected to the housing, the safe is slidably connected to the guide plate, the guide plate is provided with a slide bar guide slot, and the slide bar is snapped into the slide bar guide slot to define a sliding direction of the slide bar.

8. A door lock according to claim 7, characterized in that the guide plate is provided with a safety guide groove, into which the safety block is snapped to define the direction of movement of the safety block.

9. The door lock of claim 7, wherein the sliding rod is sleeved with a bolt return spring, one end of the bolt return spring is abutted against the bolt, and the other end of the bolt return spring is abutted against the guide plate.

10. The door lock according to claim 1, wherein the outer square sleeve is connected with a reset rod, the reset rod is abutted with a positioning piece, the positioning piece is connected with a square sleeve return spring, one end of the square sleeve return spring is connected with the lock shell, and the other end of the square sleeve return spring is abutted with the positioning piece.

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