CN214273243U - Mechanical door lock - Google Patents

Abstract

The utility model discloses a mechanical door lock, which comprises a lock body and a lock box which is closed by matching with the lock body, wherein the lock body comprises a lock tongue, and the lock tongue elastically moves up and down in the lock body; the automatic lock falling mechanism is arranged at the top of the lock tongue and is rotationally connected with the lock body, and the automatic lock falling mechanism extends a lock falling key towards one side of the door plate along the lock body; a first elastic part is arranged between the automatic lock falling mechanism and the lock body and used for jacking the automatic lock falling mechanism, so that the automatic lock falling mechanism blocks resilience of the lock tongue, the lock falling key touches the door panel, the automatic lock falling mechanism returns, and the lock tongue rebounds to be in a locking state. According to the mechanical door lock of the utility model, the automatic lock-falling mechanism can be jacked up under the action of the first elastic component, the rebounding direction of the lock tongue is blocked, and the lock tongue is prevented from being locked; when the user closed the door, the lock key that falls touched together with the door plant, and the first elastomeric element of door plant compression, automatic lock mechanism that falls backs down makes the spring bolt kick-back, accomplishes and closes the door, and is more laborsaving, avoids the lock to be in virtual state of covering.

Description

Mechanical door lock

Technical Field

The utility model relates to a lock technical field, in particular to mechanical lock.

Background

The door lock is used as a product for every family, plays an important role in protecting indoor property, most of door locks are in an opening state, the spring bolt can be in a popping state, when the door is closed, the spring bolt needs to be squeezed into the lock body by the force of a door frame, then the spring bolt rebounds, and is embedded with the lock box to complete the door closing action. However, because the elasticity of the bolt is strong, a large force is needed to close the door lock when the door is closed, and a user can cause the lock body not to be completely closed and to be in a hidden state due to insufficient force when the door is closed in daily life, so that the property loss is easily caused by the fact that lawbreakers can falsely enter the lock body.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is possible because the dynamics is not enough when closing the door to aim at solving at least and existing among the prior art, makes the lock body not close completely, is in the virtual state of covering, is taken advantage of in vain by lawless persons easily, causes the technical problem of property loss. Therefore, the utility model provides a mechanical door lock closes more easily, avoids the lock to be in the virtual state of covering.

According to some embodiments of the present invention, a mechanical door lock comprises a lock body and a lock box which is closed by cooperating with the lock body, wherein the lock body comprises a lock tongue, and the lock tongue elastically moves up and down in the lock body; the automatic lock falling mechanism is arranged at the top of the lock tongue and is rotationally connected with the lock body, and the automatic lock falling mechanism extends a lock falling key towards one side of the door plate along the lock body; the automatic lock falling mechanism and the lock body are provided with a first elastic component, the first elastic component is used for jacking the automatic lock falling mechanism, so that the automatic lock falling mechanism blocks the spring bolt to rebound, the lock falling key touches the door panel, the automatic lock falling mechanism returns, and the spring bolt rebounds and is in a locking state.

According to some embodiments of the utility model, the middle part of an unblock driving lever with the lock body rotates to be connected, the one end of unblock driving lever with the spring bolt rotates to be connected, the other end with the lock body passes through a second elastomeric element elastic connection.

According to some embodiments of the present invention, a driving plate is disposed below the unlocking shift lever, the driving plate is provided with a rotation hole, the driving plate is rotatably connected to the lock body, and the driving plate includes a front driving plate and a rear driving plate; an outer handle is fixedly arranged on the outer side of the door plate, and a key hole of the outer handle is opposite to the rotating hole of the driving plate.

According to some embodiments of the utility model, an indoor handle with the lock body rotates to be connected, indoor handle with the back driver plate rotates to be connected, indoor handle is used for driving the back driver plate makes the drive of back driver plate the unblock driving lever unblocks.

According to some embodiments of the present invention, the inner side of the indoor handle is provided with an arc groove, an indoor safety slider is slidably connected to the lock body, the indoor safety slider is close to a limit rod extending from one side of the arc groove, one end of the limit rod is engaged with the arc groove.

According to some embodiments of the utility model, a spacing bullet button set up in one side of indoor insurance saddle, spacing bullet button is used for preventing indoor insurance saddle drives the gag lever post with circular arc recess gomphosis.

According to some embodiments of the utility model, the spring bolt includes a horizontal pole, the horizontal pole through a third elastomeric element in elastic sliding in the spring bolt, the horizontal pole extends to driver plate department, is used for making the driver plate drives the spring bolt unblock.

According to some embodiments of the invention, the indoor safety slide extends a blocking portion, the blocking portion contacts with the cross bar, the indoor safety slide drives simultaneously the cross bar retraction and the stop bar with the circular arc groove embedding.

According to the utility model discloses a some embodiments, lock box orientation spring bolt one side is provided with positioning groove, the door plant corresponds positioning groove sets up a locating piece in the position.

According to some embodiments of the present invention, the positioning member comprises a housing and a positioning ball embedded in the housing, and a fourth elastic member is disposed between the positioning ball and the inner wall of the housing.

According to the utility model discloses a mechanical door lock of some embodiments has following beneficial effect at least: when the lock tongue is in an unlocked state, the automatic lock falling mechanism can be jacked up under the action of the first elastic component to block the rebounding direction of the lock tongue, so that the lock tongue is prevented from being locked; when a user closes the door, the lock falling key and the door panel are touched together, the door panel compresses the first elastic part, the automatic lock falling mechanism returns, the lock tongue rebounds and is embedded with the lock box, and the door closing is completed. Through the automatic locking mechanism closes the door, more laborsaving avoids the lock to be in the virtual state of covering.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a first schematic perspective view of a mechanical door lock according to an embodiment of the present invention;

fig. 2 is a second schematic perspective view of a mechanical door lock according to an embodiment of the present invention;

fig. 3 is a schematic view of a lock body of a mechanical door lock according to an embodiment of the present invention;

fig. 4 is a schematic view of an internal structure of a lock body of a mechanical door lock according to an embodiment of the present invention;

fig. 5 is an exploded view of the inner structure of the lock body of the mechanical door lock according to the embodiment of the present invention;

fig. 6 is a schematic view of an indoor handle of a mechanical door lock according to an embodiment of the present invention.

Reference numerals:

the lock body 100, the bolt 110, the lock box 200, the positioning groove 210, the positioning piece 220, the shell 221, the positioning ball 222, the automatic lock-falling mechanism 300, the lock-falling key 301, the first elastic component 310, the lock-falling mechanism,

The unlocking rod 400, the dial 500, the front dial 510, the rear dial 520, the outer handle 600, the indoor handle 700, the arc groove 710, the indoor safety slide 800, the limiting rod 801, the limiting elastic button 810, the cross rod 900 and the sliding groove 910.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not 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, top, bottom, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the 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 therefore, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. 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 there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A mechanical door lock according to an embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the mechanical door lock includes a lock body 100 and a lock box 200 which is closed by cooperating with the lock body 100, the lock body 100 includes a latch bolt 110, and the latch bolt 110 elastically moves up and down in the lock body 100; an automatic lock-falling mechanism 300 is arranged on the top of the lock tongue 110, the automatic lock-falling mechanism 300 is rotatably connected with the lock body 100, and the automatic lock-falling mechanism 300 extends a lock-falling key 301 towards one side of the door plate along the lock body 100; a first elastic component 310 is arranged between the automatic lock-falling mechanism 300 and the lock body 100, the first elastic component 310 is used for jacking the automatic lock-falling mechanism 300, so that the automatic lock-falling mechanism 300 blocks the spring bolt 110 from rebounding, the lock-falling key 301 touches the door panel, the automatic lock-falling mechanism 300 returns, the spring bolt 110 rebounds, and the lock-falling state is achieved.

As shown in fig. 1 and fig. 2, in this embodiment, the mechanical door lock is in a vertical lock mode, the latch 110 is two cylinders extending from a metal plate and capable of moving up and down in the lock body 100, and the lock case 200 is provided with a slot corresponding to the cylinder, when the latch 110 slides up, the cylinder is embedded in the slot, and when the latch 110 slides down, the cylinder and the slot of the lock case 200 are unlocked, so that the door can be opened. Lock box 200 is the L style of calligraphy, and the laminating door frame, lock box 200 are provided with positioning groove 210 towards one side of spring bolt 110, and positioning groove 210 sets up on door frame and the relative one side of door plant promptly, and the position that the door plant corresponds positioning groove 210 sets up a setting element 220, and when the door plant closed completely, setting element 220 and positioning groove 210 can correspond each other. When the positioning element 220 is engaged with the positioning groove 210, the engaging sound can let the user know whether the door lock is locked, thereby playing a role of reminding.

In this embodiment, the positioning member 220 includes a housing 221 and a positioning ball 222 embedded in the housing 221, a fourth elastic member (not shown in the drawings) is disposed between the positioning ball 222 and an inner wall of the housing 221, the housing 221 has a cylindrical shape, the positioning ball 222 can slide in the housing 221, and an outlet diameter of the housing 221 is smaller than a diameter of the positioning ball 222, so that the positioning ball 222 cannot slip out of the housing 221 during use. The housing 221 is embedded inside the door panel, and the surface of the housing 221 is flush with the surface of the door panel. The fourth elastic component is a spring, which can make the positioning ball 222 located at the exit of the casing 221, when the user closes the door, the positioning ball 222 first touches the edge of the lock box 200, at this time, the positioning ball 222 is pressed in the casing 221, after the positioning ball 222 is aligned with the positioning groove 210, the positioning ball 222 makes the positioning ball 222 snap into the positioning groove 210 under the elastic action of the fourth elastic component, and plays a positioning role when the door is closed.

It should be understood that the positioning element 220 is not the only embodiment in which the positioning ball 222 is engaged with the positioning groove 210, and in other embodiments, an angled positioning block may be used to slide in the housing 221 of the positioning element 220 according to actual production requirements, one end of the positioning block is designed to be symmetrical with a slope, the slope faces the positioning groove 210, when a user closes the door, the positioning block is compressed into the housing 221 by the pressing of the lock box 200 until the positioning block is aligned to the positioning groove 210, and the positioning block rebounds. The utility model discloses not lasting the structure of setting element 220, should understand, not deviating from the utility model discloses under the prerequisite of basic concept, the structure of setting element 220 is nimble to be changeed, all should be regarded as being in the utility model discloses within the scope of protection of injecing.

In some embodiments of the present invention, as shown in fig. 3, 4 and 5, specifically, the middle portion of an unlocking lever 400 is rotatably connected to the lock body 100, and one end of the unlocking lever 400 is rotatably connected to the lock tongue 110, so that the unlocking lever can be shifted to drive the lock tongue 110 to slide up and down; the other end of the unlocking lever 400 is elastically connected to the lock body 100 through a second elastic component (not shown in the drawings), the second elastic component is a spring, the other end of the unlocking lever 400 is pulled upwards to compress the second elastic component, and the end rotatably connected to the latch bolt 110 is pulled downwards to drive the latch bolt 110 to slide downwards, so as to unlock the lock. When the unlocking shift lever 400 is released, the elastic potential energy accumulated by the second elastic component is released, the second elastic part pushes the unlocking shift lever 400 to reset, and the unlocking shift lever 400 drives the lock tongue 110 to slide upwards to realize locking. When the locking tongue 110 slides downwards and enters an unlocking state, the automatic lock-falling mechanism 300 positioned at the top of the locking tongue 110 is jacked up by the first elastic component 310, so that the locking tongue 110 cannot rebound, the locking tongue 110 is in a long-term unlocking state, the door is closed in the state, the locking tongue 110 cannot cause resistance when the door is closed, when the lock-falling key 301 of the automatic lock-falling mechanism 300 contacts the door frame, the automatic lock-falling mechanism 300 is jacked into the door frame, the first elastic component 310 is compressed, the top stroke of the locking tongue 110 is vacated, so that the locking tongue 110 automatically rebounds, and locking is realized. In this embodiment, the first elastic component 310 is a metal elastic sheet, which has the characteristics of short compression stroke, rapid rebound, and the like, is durable, and can ensure that the automatic lock-dropping mechanism 300 cannot be out of order after being used for a long time.

It should be understood that the first elastic member 310 is not limited to the metal elastic sheet, and in other embodiments, a spring may be used instead of the metal elastic sheet according to actual production requirements. The utility model discloses not having repeated description one by one to the kind of first elastomeric element 310, should understand, not deviating from the utility model discloses under the prerequisite of basic concept, to the nimble transform of kind of first elastomeric element 310, all should regard as within the utility model discloses within the scope of protection of injecing.

In some embodiments of the present invention, as shown in fig. 3, 4 and 5, a dial 500 is disposed below the unlocking lever 400, the dial 500 is provided with a rotation hole, the dial 500 is rotatably connected to the lock body 100, the dial 500 includes a front dial 510 and a rear dial 520, one end of the dial 500 close to the second elastic component of the unlocking lever 400 is convex, the dial 500 is rotated upwards to push the unlocking lever 400, the convex part of the dial 500 can prop against the unlocking lever 400, and the second elastic component is compressed, so that the latch tongue 110 is in the unlocking state. In order to rotate the dial 500 from the outside of the lock body 100, an outer handle 600 is fixedly arranged on the outside of the door panel, a keyhole of the outer handle 600 is opposite to a rotation hole of the dial 500, when a user needs to open the door from the outside of the door, a key is inserted from the keyhole, the tail end of the key is matched with the rotation hole of the dial 500, the key is rotated to drive the dial 500, and the dial 500 dials the unlocking deflector rod 400 to realize unlocking.

An indoor handle 700 is rotatably connected to the lock body 100 at an indoor side of the door panel, a user rotates the indoor handle 700, the indoor handle 700 is rotatably connected to a rotation hole of the rear dial 520 in the lock body 100, and when the indoor handle 700 is rotated, the rear dial 520 is rotated, and the unlocking lever 400 is driven by the rear dial 520 to unlock.

In some embodiments of the present invention, as shown in fig. 4, 5 and 6, an arc groove 710 is disposed inside the indoor handle 700, an indoor safety slide 800 is slidably connected to the lock body 100, a limiting rod 801 extends from a side of the indoor safety slide 800 close to the arc groove 710, and a shape of an end of the limiting rod 801 matches the arc groove 710 and can be engaged with the arc groove 710. When the limiting rod 801 is matched with the arc groove 710, the indoor handle 700 is rotationally connected with the rear dial 520, the limiting rod 801 limits the rotation of the indoor handle 700, so that the rear dial 520 cannot rotate, and when a user inserts a key into the front and rear dials 520 from the outside, the dial 500 cannot be rotated, namely, the dial cannot be unlocked from the outside. The user is from indoor one side through rotating indoor handle 700, because circular arc recess 710 and gag lever post 801 are matchd each other to the recess is half circular setting, rotates indoor handle 700 and can drive circular arc recess 710 and rotate, and circular arc recess 710 rotates, promotes gag lever post 801 and backs down, makes indoor insurance slider 800 back down, removes the locking, and the door can use the key to open the door outward this moment.

And a limit elastic button 810 is further disposed on one side of the indoor safety slide 800, and the limit elastic button 810 is specifically disposed on the right side of the indoor safety slide 800, and can limit the indoor safety slide 800 from moving, so as to prevent the indoor safety slide 800 from accidentally driving the limit rod 801 to be embedded in the arc groove 710, which results in that the lock cannot be unlocked from the outside of the door. When the user needs to slide the indoor safety slide 800, the user presses the limit elastic button 810 first, so that the top of the limit elastic button 810 is lower than the bottom of the indoor safety slide 800, and at this time, the indoor safety slide 800 can slide to the right side to drive the limit rod 801 to be matched with the arc groove 710, thereby realizing internal locking.

In some embodiments of the present invention, as shown in fig. 3-5, the latch 110 further includes a cross bar 900, the cross bar 900 is disposed in a sliding groove 910 of the latch 110, the cross bar 900 elastically slides in the sliding groove 910 of the latch 110 through a third elastic component (not shown in the drawings), the cross bar 900 slides outwards under the pushing of the third elastic component when in a normal state, extends to the position of the dial 500, and is specifically located below the dial 500, when the user rotates the indoor handle 700 downwards, the dial 500 rotates downwards, the protrusion of the dial 500 contacts with the cross bar 900, and drives the cross bar 900 to move downwards, so that the cross bar 900 drives the latch 110 to slide downwards and unlock. By adding the cross bar 900, the indoor handle 700 can be rotated downwards and upwards to unlock the lock body 100.

In some embodiments of the present invention, in order to prevent the horizontal rod 900 from being shifted by the key when the indoor safety slide 800 is locked, the indoor safety slide 800 extends a blocking portion (not shown in the drawings), the blocking portion contacts with the horizontal rod 900, when the indoor safety slide 800 is locked to slide to the right, the limiting rod 801 and the blocking portion are driven to move to the right, and simultaneously the horizontal rod 900 is driven to retract and the limiting rod 801 is embedded with the circular arc groove 710, so that the key cannot rotate the dial 500 to unlock.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A mechanical door lock comprises a lock body (100) and a lock box (200) which is matched with the lock body (100) to close; the lock is characterized in that the lock body (100) comprises a bolt (110), and the bolt (110) elastically moves up and down in the lock body (100);

an automatic lock falling mechanism (300) is arranged at the top of the lock tongue (110), the automatic lock falling mechanism (300) is rotatably connected with the lock body (100), and the automatic lock falling mechanism (300) extends towards one side of the door panel along the lock body (100) to form a lock falling key (301);

the automatic lock falling mechanism (300) and the lock body (100) are provided with a first elastic component (310), the first elastic component (310) is used for jacking the automatic lock falling mechanism (300) to enable the automatic lock falling mechanism (300) to block rebounding of the lock tongue (110), the lock falling key (301) touches the door panel, the automatic lock falling mechanism (300) returns, and the lock tongue (110) rebounds to be in a locking state.

2. The mechanical door lock of claim 1, wherein a middle portion of an unlocking lever (400) is rotatably connected to the lock body (100), one end of the unlocking lever (400) is rotatably connected to the latch bolt (110), and the other end is elastically connected to the lock body (100) through a second elastic member.

3. The mechanical door lock according to claim 2, characterized in that a dial (500) is arranged below the unlocking lever (400), the dial (500) is provided with a rotation hole, the dial (500) is rotatably connected with the lock body (100), and the dial (500) comprises a front dial (510) and a rear dial (520);

an outer handle (600) is fixedly arranged on the outer side of the door plate, and a key hole of the outer handle (600) is opposite to the rotating hole of the driving plate (500).

4. The mechanical door lock of claim 3, wherein an indoor handle (700) is rotatably connected to the lock body (100), the indoor handle (700) is rotatably connected to the rear dial (520), and the indoor handle (700) is used for driving the rear dial (520), so that the rear dial (520) drives the unlocking lever (400) to unlock.

5. The mechanical door lock of claim 4, wherein an arc groove (710) is formed on the inner side of the indoor handle (700), an indoor safety slide (800) is slidably connected to the lock body (100), a limiting rod (801) extends from the indoor safety slide (800) near the arc groove (710), and one end of the limiting rod (801) is engaged with the arc groove (710).

6. The mechanical door lock according to claim 5, characterized in that a limit button (810) is provided on one side of the indoor safety slide (800), the limit button (810) is used to prevent the indoor safety slide (800) from driving the limit rod (801) to engage with the arc groove (710).

7. The mechanical door lock of claim 6, wherein the latch (110) comprises a cross bar (900), the cross bar (900) slides elastically in the latch (110) through a third elastic component, and the cross bar (900) extends to the position of the dial (500) for the dial (500) to drive the latch (110) to unlock.

8. Mechanical door lock according to claim 7, characterized in that the indoor safety slide (800) extends a stop, which is in contact with the crossbar (900), the indoor safety slide (800) simultaneously driving the crossbar (900) to retract and the limit rod (801) to engage with the arc groove (710).

9. The mechanical door lock according to any one of claims 1 to 8, characterized in that the lock case (200) is provided with a positioning groove (210) on the side facing the bolt (110), and the door panel is provided with a positioning piece (220) corresponding to the positioning groove (210).

10. The mechanical door lock according to claim 9, wherein the positioning member (220) comprises a housing (221) and a positioning ball (222) embedded in the housing (221), and a fourth elastic member is disposed between the positioning ball (222) and an inner wall of the housing (221).

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