CN220769144U

CN220769144U - Door lock safety mechanism based on linear push-pull operation and door lock

Info

Publication number: CN220769144U
Application number: CN202322552591.0U
Authority: CN
Inventors: 王衍顺
Original assignee: Yileite Guangdong Electromechanical Co ltd
Current assignee: Yileite Guangdong Electromechanical Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-04-12
Anticipated expiration: 2033-09-19

Abstract

The utility model discloses a door lock safety mechanism and a door lock based on linear push-pull operation, wherein the door lock safety mechanism comprises: the clutch mechanism is used for enabling the lock head to be in a locking state or a freely movable unlocking state by rotating and swinging the lock head close to or far away from the door lock; the driving rod comprises a first end and a second end, and the first end is connected with the free end of the clutch mechanism; the push-pull mechanism comprises a driving plate and a push-pull plate connected with the driving plate, a through hole is formed in the driving plate, the second end of the driving plate is arranged in the through hole in a penetrating mode, and the through hole provides a translation space for the second end of the driving rod; the push-pull plate is used for driving the driving plate to linearly reciprocate along a preset track; the included angle between the central axis of the translation space provided by the through hole and the moving track line of the driving plate is larger than zero. The door lock safety mechanism can realize unlocking through the linear motion of the operation push-pull plate, and compared with the traditional rotary operation, the door lock safety mechanism is simpler, more convenient and feasible, and can be conveniently operated no matter whether the hand space is limited or not.

Description

Door lock safety mechanism based on linear push-pull operation and door lock

Technical Field

The utility model relates to the technical field of door lock structures, in particular to a door lock safety mechanism based on linear push-pull operation and a door lock.

Background

The existing door lock safety mechanism is operated in a rotating mode, and the rotating handle drives the clutch mechanism in the lock body to rotate so as to achieve the purpose of unlocking or locking the door lock. Such an operation may cause inconvenience in some cases, for example, when the hand space is limited or when frequent unlocking or locking of the door lock is required, such a rotation operation may be particularly laborious.

Disclosure of Invention

The utility model aims to provide a door lock safety mechanism based on linear push-pull operation, which can unlock the door lock through linear push-pull operation.

In order to achieve the above object, the present utility model discloses a door lock safety mechanism based on linear push-pull operation, comprising:

the clutch mechanism is used for approaching to or separating from the lock head on the door lock through rotary swinging so that the lock head is in a locking state or a freely movable unlocking state.

The driving rod comprises a first end and a second end, and the first end is connected with the free end of the clutch mechanism;

the push-pull mechanism comprises a driving plate and a push-pull plate connected with the driving plate, a through hole is formed in the driving plate, the second end of the driving rod is arranged in the through hole in a penetrating mode, and the through hole provides a translation space for the second end of the driving rod;

the push-pull plate is used for driving the driving plate to linearly reciprocate along a preset track;

and an included angle between a central axis of the translation space provided by the through hole and a moving track line of the driving plate is larger than zero.

Preferably, the central axis of the translation space provided by the through hole is perpendicular to the moving track line of the driving plate.

Preferably, the through hole is a strip hole.

Preferably, a push-pull groove is arranged on the shell of the door lock, and the push-pull plate is in sliding connection with the push-pull groove.

Preferably, the clutch mechanism comprises a rotating member and a clutch member, wherein the rotating member is connected with a lock cylinder on the door lock, so that the rotating member can rotate along with the rotation of the lock cylinder;

the clutch piece comprises a first fixed end and a first movable end, and is pivoted with the base body of the door lock based on the first fixed end; the first movable end is provided with a blocking part which is used for being abutted against a lock head on the door lock;

the first movable end is provided with a first position and a second position, and in the first position, the blocking part is abutted with the lock head on the door lock so as to block the lock head from backing to a lock releasing state; in the second position, the blocking portion is separated from the lock head so that the lock head can move freely;

the rotating piece is connected with the clutch piece, so that the rotating piece can drive the clutch piece to rotate;

the first end of the driving rod is connected with the first movable end of the clutch piece.

Preferably, the clutch member is provided with a chute extending from the first fixed end to the first movable end; the clutch mechanism further comprises a homing piece connected with the clutch piece;

the homing piece comprises a second fixed end and a second movable end, the homing piece is pivoted with the base body based on the second fixed end, and the second movable end is provided with a connector matched with the chute;

the connector with spout sliding connection is provided with first elastic component in the spout, the one end of first elastic component with the connector butt, the other end of first elastic component with the interior first stiff end butt of spout.

Preferably, a first straight line is formed through the first fixed end and the first movable end, a second straight line is formed through the second fixed end and the second movable end, and an included angle alpha between the first straight line and the second straight line satisfies the following condition in the rotation process of the clutch member: the angle alpha is more than 0 degrees and less than 180 degrees, and the moving track of the first movable end and the second movable end is always positioned at one side of the first fixed end and one side of the second fixed end, which are close to the lock head.

Preferably, the clutch mechanism further comprises a connecting rod member, a first lug is arranged on the side wall of the rotating member, a second lug is arranged on the clutch member, and the connecting rod member is hooked and connected with the rotating member and the clutch member through the first lug and the second lug respectively.

Preferably, the clutch mechanism further comprises a driving motor, and the driving motor is in transmission connection with the rotating piece.

The utility model also discloses a door lock, which comprises a base body, wherein the base body is provided with the lock head and the door lock safety mechanism based on the linear push-pull operation.

Compared with the prior art, the door lock safety mechanism disclosed by the technical scheme of the utility model has the following beneficial technical effects:

1. the linear motion of the push-pull plate drives the arc line of the driving rod to rotate, so that the rotation and swing control of the clutch mechanism is realized, and the safety of the door lock is realized by adopting the linear push-pull operation;

2. the clutch mechanism is of a rotary swing structure, and compared with the traditional gear structure, the clutch mechanism is simple in structure, low in design cost and long in service life.

Drawings

Fig. 1 is a perspective view of a door lock according to an embodiment of the present utility model.

Fig. 2 is an understanding structure diagram of the push-pull mechanism and the clutch mechanism in fig. 1.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a connection structure diagram of the driving plate and the clutch member in fig. 2.

Fig. 5 is a perspective view of the clutch mechanism of fig. 1 mounted in cooperation with a lock head.

Fig. 6 is a plan view of fig. 5.

Fig. 7 is a perspective view of the locking head of fig. 5.

Fig. 8 is a perspective view of the clutch of fig. 5.

Fig. 9 is a perspective view of the homing member of fig. 5.

Fig. 10 is a connection structure diagram of the clutch member and the homing member in fig. 5.

Fig. 11 is a bottom view of fig. 5.

Detailed Description

In order to describe the technical content, the constructional features, the achieved objects and effects of the present utility model in detail, the following description is made in connection with the embodiments and the accompanying drawings.

As shown in fig. 1 and 2, the present embodiment discloses a door lock 100 that can be used on doors in various situations, such as a home door or a door in a motor home. The door lock 100 includes a base 10, a lock cylinder 12 and a door lock safety mechanism for restricting free movement of the lock cylinder 12 are provided on the base 10, so as to avoid unlocking from being directly performed by a door handle connected to the lock cylinder 12 without a key.

As shown in fig. 1 to 4, the door lock safety mechanism includes a clutch mechanism M, a driving lever 101, and a push-pull mechanism.

As for the clutch mechanism M, it is used to move toward or away from the lock head 12 on the door lock by rotational swinging so that the lock head 12 is in a locked state or a freely movable lock release state.

For the driving rod 101, it comprises a first end 1010 and a second end 1011, the first end 1010 being connected to the free end of the clutch mechanism M.

For the push-pull mechanism, the push-pull mechanism comprises a driving plate 102 and a push-pull plate 103 connected with the driving plate 102, a through hole 1020 is arranged on the driving plate 102, the second end 1011 of the driving rod 101 is penetrated in the through hole 1020, and the through hole 1020 provides a translation space for the second end 1011 of the driving rod 101 so as to support the rotation movement of the driving rod 101.

The push-pull plate 103 is used for driving the driving plate 102 to linearly reciprocate along a preset track.

As shown in fig. 4, the angle between the central axis L1 of the translation space provided by the through hole 1020 and the moving trace L2 of the driving plate 102 is greater than zero.

In addition, in order to provide a space between the driving plate 102 and the push-pull plate 103 for the second end 1011 of the driving rod 101 to protrude from the through hole 1020, a pad 105 is further disposed between the driving plate 102 and the push-pull plate 103, that is, the driving plate 102 and the push-pull plate 103 are connected together by the pad 105, and the pad 105 is located on one side of the through hole 1020 on the driving plate 102.

In this embodiment, the free end of the clutch mechanism M is connected to the driving plate 102 through the driving rod 101, and the driving plate 102 is further connected to the push-pull plate 103, so that when the push-pull plate 103 is operated to move linearly along a preset track, the driving plate 102 is driven to move linearly. Whereas, since the actual movement trace of the driving rod 101 is an arc, as the driving plate 102 moves linearly, the second end 1011 of the driving rod 101 moves along the translational space provided by the through hole 1020 in the through hole 1020 on the driving plate 102, that is, from one end of the through hole 1020 to the other end of the through hole 1020. Specifically, as shown in fig. 4, the through hole 1020 is provided with two limit positions, namely a limit position a and a limit position B, which are abutted against the second end 1011 of the driving rod 101, when the driving rod 101 is located at the limit position a, the clutch mechanism M is in a locking state abutted against the lock head 12, and when the driving rod 101 is located at the limit position B, the clutch mechanism M is in a releasing state separated from the lock head 12.

It should be further noted that, since the included angle between the central axis L1 of the translation space provided by the through hole 1020 and the moving track line L2 of the driving plate 102 is greater than zero, the moving direction of the driving plate 102 and the moving direction of the second end 1011 of the driving rod 101 in the through hole 1020 are necessarily not parallel, so as to provide support for the actual arc-shaped movement of the driving rod 101.

Further, the central axis L2 of the translation space provided by the through hole 1020 is perpendicular to the movement track line L2 of the driving plate 102, so that the driving plate 102 provides the maximum lateral movement distance for the driving rod 101 when moving linearly. In this embodiment, the through hole 1020 is preferably an elongated hole.

Further, a push-pull groove 104 is provided on the housing of the door lock 100, and the push-pull plate 103 is slidably connected with the push-pull groove 104. Through the arrangement of the push-pull groove 104, the push-pull plate 103 moves along the track defined by the push-pull groove 104, so that the movement of the push-pull plate 103 is prevented from shifting, and the operation sensitivity is higher.

On the other hand, as shown in fig. 5 to 8, the clutch mechanism M includes a rotating member 2 and a clutch member 3, and the rotating member 2 is connected to a lock cylinder 11 on the door lock such that the rotating member 2 can rotate following the rotation of the lock cylinder 11. When a key is inserted into the lock cylinder 11, the lock cylinder 11 rotates, and the rotator 2 is driven to rotate.

As for the clutch member 33, it includes a first fixed end 30 and a first movable end 31, and the clutch member 3 is pivotally connected to the base 10 of the door lock 100 based on the first fixed end 30. The first movable end 31 is provided with a blocking portion 32, and the blocking portion 32 is used for abutting against the lock head 12 on the door lock 100. The clutch 3 in this embodiment is a swing structure that performs a swing motion based on one end. The first end 1010 of the driving rod 101 is connected to the first movable end 31 of the clutch 3.

In addition, the lock cylinder 12 is provided with a blocking engagement portion 123 that is adapted to the blocking portion 32. The blocking portion 32 in this embodiment is a protrusion, and the blocking mating portion 123 is a groove.

In addition, the first movable end 31 has a first position and a second position. In the first position, the blocking portion 32 abuts against the lock head 12 on the door lock to block the lock head 12 from backing to the lock release state, that is, to put the door lock 100 in the safety lock state. In the second position, the blocking portion 32 is separated from the lock head 12, so that the lock head 12 can move freely, that is, the door lock 100 is in a state to be opened, at this time, the door lock can be withdrawn from the locking groove on the door frame by controlling the door handle connected with the lock head 12, so as to realize unlocking operation.

The rotating member 2 is connected to the clutch member 3 such that the rotating member 2 can rotate the clutch member 3.

Specifically, the rotating member 2 drives the clutch member 3 to rotate from the first position to the second position via the link member 4.

With the clutch mechanism having the above-described structure, the clutch 3 is operated by the driving lever 101 and the rotating member 2, respectively, to achieve the lock releasing operation. For example, the lock core 11 of the door lock 100 is arranged towards the outer side of the door, the push-pull plate 103 is arranged towards the inner side of the door, and when a user needs to unlock the door, the key drives the rotating member 2 to rotate, and then drives the clutch member 3 to rotate, so that unlocking is realized. When a user is in the door, the push-pull plate 103 is operated to linearly move, and then the clutch 3 is driven to rotate, so that unlocking is realized.

Furthermore, the lock 12 is provided with a connecting slot 122, as shown in fig. 11, the connecting slot 122 is used for connecting with a door handle, and when the clutch member 3 is in the second position, the door handle is used for driving the lock 12 to withdraw from the locking slot on the door frame. That is, when the blocking portion 32 of the clutch 3 is separated from the locking head 12, the locking head 12 can be withdrawn from the locking groove of the door frame by turning the door handle.

On the other hand, as shown in fig. 5, 6 and 9, in some cases, the user wants the lock cylinder 12 to be automatically in a safe state when the push-pull plate 103 is operated or released without a key, that is, does not want the first movable end 31 of the clutch member 3 to stay in the second position without being operated. For this purpose, a return element 5 is associated with the clutch element 3, which return element 5 serves to provide the clutch element 3 with a constant driving force for the movement to the first position. By means of the arrangement of the homing member 5, when a user releases the push-pull plate 103 or pulls out a key, the first movable end 31 of the clutch member 3 automatically swings to the first position, so that the lock head 12 is in a safe state, and the lock head 12 can be prevented from being in a free state when the user leaves. In addition, when the door is in an open state due to the fact that the lock head 12 is withdrawn from the locking groove in the door frame, the homing piece 5 can drive the clutch piece 3 to automatically enter the first position, so that the door is prevented from being locked under the condition of no key, and further, the key is prevented from being locked into a house.

Specifically, the clutch member 3 is provided with a chute 33 extending from the first fixed end 30 to the first movable end 31. The homing member 5 includes a second fixed end 50 and a second movable end 51, the homing member 5 is pivotally connected to the base 10 based on the second fixed end 50, and the second movable end 51 is provided with a connector 52 adapted to the chute 33. The homing member 5 and the clutch member 3 in this embodiment are both swing structural members, and the homing member 5 is disposed opposite to the clutch member 3. The connector 52 is slidably connected with the chute 33, a first elastic member 34 is arranged in the chute 33, one end of the first elastic member 34 is abutted with the connector 52, and the other end of the first elastic member 34 is abutted with the first fixed end 30 in the chute 33. In this embodiment, when the first movable end 31 of the clutch member 3 is in the first position, the first elastic member 34 may be in a natural extended state or in a compressed state, and of course, preferably in a compressed state, so that the blocking portion 32 on the clutch member 3 is tightly abutted against the lock head 12.

When the rotating member 2 drives the clutch member 3 to rotate from the first position to the second position through the link member 4, the first movable end 31 of the clutch member 3 drives the second movable end 51 of the homing member 5 to rotate away from the lock head 12, so that the connecting head 52 moves along the sliding slot 33 in a direction approaching to the first fixed end 30, and further the first elastic member 34 is compressed. Then, when the rotation moment on the rotating member 2 disappears, the elastic restoring force of the first elastic member 34 pushes the connecting head 52 to move towards the direction approaching the lock head 12, so that the connecting head 52 drives the first movable end 31 of the clutch member 3 to move towards the lock head 12 together, and finally the blocking portion 32 on the clutch member 3 abuts against the lock head 12.

On the other hand, if the connection head 52 is in the same line with the first fixing end 30 and the second fixing end 50, the elastic restoring force of the first elastic member 34 will not bring a rotation moment to the connection head 52, and at this time, the clutch member 3 is at the dead point. Therefore, the rotational stroke of the clutch 3 is limited such that the first movable end 31 cannot pass the region between the first fixed end 30 and the second fixed end 50, that is: as shown in fig. 10, a first straight line L3 is formed through the first fixed end 30 and the first movable end 31, a second straight line L4 is formed through the second fixed end 50 and the second movable end 51, and in the rotation process of the clutch member 3, an included angle α between the first straight line L3 and the second straight line L4 satisfies a condition P:0 DEG < alpha < 180 DEG, and the moving tracks of the first movable end 31 and the second movable end 51 are always positioned at the sides of the first fixed end 30 and the second fixed end 50 near the lock cylinder 12.

In the rotation process of the clutch 3, as long as the included angle alpha between the first straight line L3 and the second straight line L4 is ensured to always meet the condition P, the clutch 3 can be prevented from entering the dead point, and therefore the stability of the working performance of the clutch mechanism M is effectively ensured.

On the other hand, as shown in fig. 5, a first lug 20 is provided on the side wall of the rotary member 2, a second lug 35 is provided on the clutch member 3, and the link member 4 is hooked with the rotary member 2 and the clutch member 3 by the first lug 20 and the second lug 35, respectively. In the present embodiment, the arrangement of the first lugs 20 and the second lugs 35 makes the assembly of the link member 4 with the rotating member 2 and the clutch member 3 more convenient.

On the other hand, as shown in fig. 11, to enhance the operability of the door lock 100, the clutch mechanism M in the present embodiment further includes a driving motor 6, and the driving motor 6 is in transmission connection with the rotating member 2. Through the arrangement of the driving motor 6, a user can control the driving motor 6 through the coded switch J or the remote controller, and then the driving motor 6 drives the rotating piece 2 to rotate, so that the trouble of carrying a key with the user can be saved.

Specifically, the rotating member 2 is sleeved at one end of a rotating shaft 7, the other end of the rotating shaft 7 is used for being inserted into a lock cylinder 11, and a gear 8 meshed with the driving motor 6 is arranged in the middle of the rotating shaft 7.

On the other hand, as shown in fig. 1 and 2, the lock head 12 includes a main head 120 and an auxiliary head 121, the main head 120 is slidably connected with the base 10, and the auxiliary head 121 is fixedly connected with the main head 120, so that the main head 120 drives the auxiliary head 121 to synchronously move. In this embodiment, two lock heads 12 are configured, namely a main head 120 and an auxiliary head 121, and the auxiliary head 121 is fixedly connected with the main head 120, so that only one lock cylinder 11 and one push-pull plate 103 are configured for the door lock 100 to simultaneously control the two lock heads 12 to synchronously act, thereby effectively improving the convenience of use.

As shown in fig. 5, when the clutch member 3 is separated from the lock 12, in a case of releasing the door handle, in order to allow the lock 12 to automatically extend to be in a locked state, the rear end of the lock 12 may be further provided with a second elastic member 13, and when the lock 12 is retracted from the locking groove on the door frame, the second elastic member 13 is in a compressed state, so that, when the manipulation force on the door handle is removed, the lock 12 automatically extends under the elastic restoring force of the second elastic member 13 and abuts against the blocking portion 32 on the clutch member 3 through the blocking engagement portion 123.

In summary, as shown in fig. 1 to 11, the present utility model discloses a door lock 100, wherein the door lock 100 includes a lock head 12, a lock cylinder 11, and a door lock safety mechanism. The door lock safety mechanism comprises a push-pull mechanism consisting of a driving plate 102 and a push-pull plate 103, a driving rod 101 and a clutch mechanism M. When a user needs to unlock the door lock 100 through the action of the clutch mechanism M of the push-pull plate 103, the user only needs to push the push-pull plate 103 along a straight line, and compared with the traditional rotary operation, the operation is simpler and more feasible, and the operation can be conveniently performed no matter whether the hand space is limited or not.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims

1. A door lock safety mechanism based on linear push-pull operation, comprising:

the clutch mechanism is used for enabling the lock head to be in a locking state or a freely movable unlocking state by rotating and swinging the lock head close to or far away from the door lock;

2. The door lock safety mechanism according to claim 1, wherein the center axis of the translational space provided by the through hole is perpendicular to the moving track line of the driving plate.

3. The door lock safety mechanism according to claim 1, wherein the through hole is an elongated hole.

4. The door lock safety mechanism based on linear push-pull operation according to claim 1, wherein a push-pull groove is arranged on a shell of the door lock, and the push-pull plate is in sliding connection with the push-pull groove.

5. The door lock safety mechanism based on linear push-pull operation according to claim 1, wherein the clutch mechanism comprises a rotating member and a clutch member, the rotating member is connected with a lock cylinder on a door lock, so that the rotating member can rotate following the rotation of the lock cylinder;

6. The door lock safety mechanism based on linear push-pull operation according to claim 5, wherein a chute extending from the first fixed end to the first movable end is provided on the clutch member; the clutch mechanism further comprises a homing piece connected with the clutch piece;

7. The door lock safety mechanism according to claim 6, wherein a first straight line is formed through the first fixed end and the first movable end, a second straight line is formed through the second fixed end and the second movable end, and an included angle α between the first straight line and the second straight line during rotation of the clutch member satisfies: the angle alpha is more than 0 degrees and less than 180 degrees, and the moving track of the first movable end and the second movable end is always positioned at one side of the first fixed end and one side of the second fixed end, which are close to the lock head.

8. The door lock safety mechanism according to claim 5, wherein the clutch mechanism further comprises a link member, a first lug is provided on a side wall of the rotating member, a second lug is provided on the clutch member, and the link member is hooked with the rotating member and the clutch member through the first lug and the second lug, respectively.

9. The door lock safety mechanism according to claim 5, wherein the clutch mechanism further comprises a drive motor in driving connection with the rotating member.

10. A door lock comprising a base body on which a lock head and the door lock safety mechanism based on linear push-pull operation as claimed in any one of claims 1 to 9 are provided.