CN2421377Y - Lockset with self-closing latch - Google Patents

Abstract

A lock with automatically locking latch is composed of a trigger unit between latch and bolt, a slide block engaged with said latch and guided by track rod and reset element, and a latch between slide block and bolt for locking slide block.

Description

Lockset with self-closing latch

The utility model relates to a lock, in particular to a lock with an automatic locking bolt.

The lock generally used to lock the door leaf is designed to take into account the locking effect and the convenience of use. Inside the lock, there is a lock bolt that needs to be turned by a key, and a lock that can automatically retract when the door leaf is closed. The bolt that pops up again is used to unlock and lock the door leaf and the door frame at ordinary times, and can be set on the indoor dial button by the bolt deadbolt, so that indoor users only need to push or turn the dial The door leaf can be opened smoothly by pressing the button, which increases the convenience of the lock in daily use; when the user wants to go out or needs to enhance the locking effect of the door leaf, it must be closed when the door leaf is closed. , use the key to insert the lock from the outdoors and turn the lock cylinder to release the tumbler and at the same time turn the lock bolt, so that the lock bolt protrudes toward the outside of the lock, so as to strengthen the other locking effect of the original bolt and the deadbolt, so that the door leaf can be improved. For a precise locking effect.

However, due to the above-mentioned commonly used lock structure, when the lock bolt is turned, it needs to be continuously rotated for a certain number of turns through the key towards a specific direction, so that the lock bolt can be stretched out and reach the correct position, which is not only inconvenient to use It is necessary to get used to the method of using it, which will invisibly make the user feel troublesome and omit the action of locking the lock, and even when it is in a time-critical state, the cumbersome locking action will cause trouble in use. or because of the rush of time, the latch cannot be fully locked, so that the locking effect of the lock cannot be fully exerted.

The main purpose of this utility model is to provide a lock with a latch that can be automatically locked. When the user closes the door leaf, the bolt on the lock will shrink inward due to the closing action of the door leaf, and at the same time drive the latch Pop out to achieve latching effect.

The second purpose of the utility model is to provide a lock with a latch that can be automatically locked, which can prevent the automatic locking function from being activated by arbitrarily moving the slider, and increase the safety of the lock in actual use.

The purpose of this utility model is achieved in that:

A lock with a latch that can be automatically locked, mainly comprising a housing base and a latch and a latch deadbolt disposed inside the housing base. It has a slider structure that buckles with the latch; the trigger assembly is also provided with a tenon structure that can be moved by the touch of the latch cock, and a reset element that can push against the reset of the slider structure;

The trigger assembly forms a linked state with the latch and the bolt. The retraction of the latch latch triggers the trigger assembly to release the grip of the tenon structure on the slider structure. The reset element pushes against the slider structure together with the latch. Pop out toward the outside of the lock to make the latch into an automatic locking state.

A buckle block protrudes from the joint surface between the slider structure and the housing base, and the housing base cooperates with a corresponding position to form a post hole for the buckle block to extend into, and a slot is formed on one side of the post hole; The side lock of the slider structure is provided with a pair of equal ground rails, and the rails form a deep post hole for inserting a reset element such as a spring, and there is formed on the inner bonding surface of the rails and the slider structure. Slotted, and the slider structure is provided with a lever at its corresponding position, the lever of the slider structure extends into the rail through the slot, and conflicts with the reset element; the tenon structure is located on the aforementioned slider Between the block structure and the latch cock, there is a linkage plate locked with the slider structure. The tenon structure is inserted on a guide block, and a spring is provided on the guide block to enable the tenon structure to return up and down. , the top of the tenon structure is a block with an oblique guide edge formed on it, and the latch cock has an oblique guide edge horizontally formed on the rod body to touch the tenon structure, pushing the tenon structure up and down Action lever, and at the bottom of the tenon structure is a buckle end that is clamped with the linkage plate; the linkage plate forms a perforation on its plate body to facilitate the buckle block of the slider structure It can be in contact with the lock bolt through the perforation, and a protruding telescopic buckle rod on the buckle block is inserted into the button hole of the lock bolt, so that the slider structure can be buckled with the lock bolt; A screw passes through the locking hole on the plate body to directly lock with the slider structure, and a gap is formed above the linkage plate to engage with the tenon structure.

The slider structure is provided with a push button on one side of the body to control the action of the buckle block, and a side groove is formed on the side of the buckle block, and an oblique groove is formed at the junction of the column hole of the housing base and the slot. guide edge.

The utility model has a simple structure. The lock can be retracted with the latch cock, so that the latch can automatically pop out to form a lock structure in a locked state. The user only needs to press the button in the trigger assembly when the lock is opened. The slider structure can make the trigger assembly, the lock bolt and the bolt stopper produce linkage, so that the lock can automatically pop out the lock when the door leaf is closed, so that the lock is in a locked state, and there is no need to continuously turn the lock cylinder through the key. The locking action of the lock bolt can be made faster and more reliable, and the convenience and safety of the lock are increased.

The technical solutions and embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

Description of drawings:

Fig. 1 is the structural appearance drawing of a preferred embodiment of the utility model;

Fig. 2 is a schematic diagram of the internal structure combination of the utility model;

Fig. 3 is an exploded schematic view of the slider structure in the trigger assembly of the present invention;

Fig. 4 is an exploded schematic view of the tenon structure in the trigger assembly of the present invention;

Fig. 5 is a schematic diagram of the structural combination of the trigger assembly, the latch and the latch cock of the present invention;

Fig. 6 is the action schematic diagram one of the utility model;

Fig. 7 is the second action schematic diagram of the utility model;

Fig. 8 is the action schematic diagram three of the utility model;

Fig. 9 is an action schematic diagram four of the utility model;

Fig. 10 is a schematic diagram of the fifth action of the utility model.

The utility model relates to a lock with a lock that can be automatically locked. The basic structure of the lock is shown in Figure 1. The overall structure is based on a shell 11, and a lock 14 and a lock are provided inside the shell 11. The latch cock 16, in addition, covers its overall structure inside the shell seat 11 by a cover plate 12, and a lock cylinder 13 is provided on the cover plate 12, please cooperate with it as shown in Figure 2, so as to facilitate the insertion of the key For turning the lock cylinder 13, in order to toggle a tumbler 15 to release the restriction on the lock bolt 14, and then turn the lock bolt 14 so that the lock bolt 14 retracts into the housing base 11, or protrudes out of the housing base 11 And achieve the state operation of unlocking and locking.

Please refer to Fig. 2 and 3 at the same time, a trigger assembly 2 is arranged between the latch 14 and the latch stopper 16, and the trigger assembly 2 has a slider structure 21 to engage with the latch 14, and the slider structure 21 is It is a one-piece structure, which is pierced on the shell base 11 by the outside of the shell base 11, and a buckle block 211 is protrudingly provided on the joint surface between it and the shell base 11, and the shell base 11 is matched with the corresponding position A column hole 112 is formed for the buckle block 211 to extend in, and a slot 111 is formed on one side of the column hole 112 for the slider structure 21 to slide on the housing base 11, and the side of the slider structure 21 is locked. A pair of parallel rails 22 are provided, and the rails 22 form a deep post hole 221 for inserting a reset element 223 such as a spring, and an opening is formed on the inner bonding surface of the rails 22 and the slider structure 21. slot 222, and the slider structure 21 is provided with a driving rod 214 at its corresponding position, so that the driving rod 214 of the slider structure 21 can extend into the rail rod 22 through the slot 222, and conflict with the reset element 223, The reset action in the same direction as the latch 14 can be achieved through the pushing action of the reset element 223 .

Again as shown in Figures 3 to 5, another tenon structure 24 is located between the aforementioned slider structure 21 and the latch cock 16 in the trigger assembly 2, and a link plate 26 is locked with the slider structure 21, so as to The tenon structure 24 can form a clamping effect on the slider structure 21, wherein the tenon structure 24 is locked on the inner side plate body of the shell seat 11 together with the linkage plate 26 and the bolt guide plate 151, and the tenon structure The tenon structure 24 is put on a guide block 25, and can be reset up and down by the pressure of a spring 251. The top of the tenon structure 24 is a block, and an inclined guide edge is formed on it. 241, and its latch cock 16 is formed with a driving lever 161 horizontally on its rod body to touch the inclined guide edge of the tenon structure 24, and promote the tenon structure 24 to move up and down, while at the bottom of the tenon structure 24 is a function and The buckle end 242 held by the linkage plate 26; the linkage plate 26 is a plate-shaped structure, and a perforation 261 is formed on its plate body, so that the buckle block 211 of the slider structure 21 can be Contact with the lock bolt 14 through the perforation 261, and extend into the button hole 141 of the lock bolt 14 by a protruding telescopic buckle rod 212 on the buckle block 211 (as shown in Figures 7 and 8), so that the slider structure 215 is so that it is buckled with the latch 14; and the linkage plate 26 is directly locked with the slider structure 21 through a locking hole 262 on the plate body by a screw 263, and can be locked with the slider structure. 21 moves, and a notch 264 is formed on the top of the linkage plate 26, and achieves the effect of clamping and buckling with the tenon structure 24, and a guide groove 265 and a guide hole 266 are formed on the linkage plate 26 to facilitate cooperation It passes through the guide post 114 and the guide rod 17 on the shell base 11, so that the sliding action of the overall slider structure 21 and the linkage plate 26 is more stable and reliable; There is a push button 23 on the side that can control the action of the buckle block 211, and a side groove 213 is formed on the side of the buckle block 211, and an oblique guide is formed at the junction of the column hole 112 and the slot 111 of the shell base 11. Edge 113, so that when the push button 23 is not pressed, its buckle block 211 is restricted and unable to expand and contract, so that its side groove 213 will be hidden inside the body of the slider structure 21, and cannot be opposite to the slot 111 close, so the slider structure 21 will not be able to be pushed into the slot 111 to move, on the contrary, when the push button 23 is touched, the restriction of the buckle block 211 will be released, so that when the slider structure 21 is pushed to the slot When one side of 111 moves, its buckle block 211 can be pushed in and floated through the inclined guide edge 113, and the side groove 213 is exposed and matched with the slot 111, so that the slider structure 21 can be smoothly moved toward the slot 111. advance on one side. With the restraining effect of the push button 23 on the buckle block 211, a safety protection structure that can prevent the automatic locking function from being arbitrarily opened is achieved.

As for the action mode of the automatic locking of the latch in the utility model as shown in Figures 6 to 9, first, as shown in Figure 6, it is for the lock to be opened by the key, and the latch 14 is retracted inside the housing 11 At this time, the user can push the slider structure 21 to move to one side of the latch 14, as shown in FIG. The buckle ends 242 are locked and engaged with each other, and stagnate there. At the same time, the telescopic buckle rod 212 on the buckle block 211 extends into the buckle hole 141 of the latch 14, so that the latch 14 and the slider structure 21 form a joint. As shown in Figure 8, when the user closes the door leaf, the latch cock 16 on the lock will shrink toward the housing seat 11 due to the closing action of the door leaf, and at the same time be moved by the lever 161 The tenon structure 24 makes the tenon structure 24 rise so that the buckle end 242 withdraws from the gap 264 above the linkage plate 26, and releases the clamping effect on the slider structure 21. At this time, the slider structure 21 can be reset by The element 223 moves toward the outside of the lock, and at the same time drives the latch 14 to pop out, as shown in FIG. 9 , so that the latch 14 achieves the effect of automatic locking.

The utility model is provided with a trigger assembly between the latch and the bolt in the lock, so that there is a linkage effect between them, so that when the user opens the automatic locking function, the lock can be activated with the closing of the door leaf. The latch locks automatically, and there is no need to continuously turn the lock cylinder with the key, which can make the locking action of the latch more rapid and reliable, increase the convenience and safety of the lock in use, and provide another better lock structure. Feasible way, so the application for utility model patent is submitted according to law.

Claims (3)

1. A lock with a latch that can be automatically locked, mainly comprising a housing base and a latch and a latch deadbolt disposed inside the housing base. The trigger assembly has a slider structure that buckles with the latch; the trigger assembly is also provided with a tenon structure that can be moved by the touch of the latch cock, and a reset element that can push against the reset of the slider structure; The trigger assembly forms a linked state with the latch and the bolt. The retraction of the latch latch triggers the trigger assembly to release the grip of the tenon structure on the slider structure. The reset element pushes against the slider structure together with the latch. Pop out toward the outside of the lock to make the latch into an automatic locking state. 2. The lock with automatic locking bolt according to claim 1, characterized in that: a buckle block protrudes from the joint surface of the slider structure and the housing base, and the housing base cooperates with a corresponding position to form a latching block. The column hole that the buckle block extends into, and a slot is formed on one side of the column hole; the side lock of the slider structure is provided with a pair of equal ground rails, and the rails form a deep reset for being inserted into the spring. The column hole of the component, and a slot is formed on the inner bonding surface of the rail rod and the slider structure, and the slider structure is provided with a lever at its corresponding position, and the lever of the slider structure extends through the slot. Into the rail rod, and conflict with the reset element; the tenon structure is set between the aforementioned slider structure and the latch cock, and a linkage plate is locked with the slider structure, and the tenon structure is inserted in a On the guide block, a spring is provided on the guide block to enable the tenon structure to return up and down. A slanted guide edge that can touch the tenon structure is formed horizontally on the rod body, and a lever that pushes the tenon structure to move up and down, and at the bottom of the tenon structure is a buckle end that is used to hold the linkage plate; A perforation is formed on the body of the linkage plate, so that the buckle block of the slider structure can contact the lock bolt through the perforation, and a protruding telescopic buckle rod on the buckle block extends into the buckle hole of the lock bolt middle, so that the slider structure can be locked with the latch; the linkage plate is directly locked with the slider structure by passing a screw through the locking hole on the plate body, and a gap is formed above the linkage plate It is buckled and engaged with the tenon structure. 3. The lock with automatic locking bolt according to claim 2, characterized in that: the slider structure is provided with a push button on one side of the body to control the action of the buckle block, and on the side of the buckle block A side groove is formed on the side, and an inclined guide edge is formed at the junction of the column hole of the shell seat and the groove.

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