CN116263063A

CN116263063A - Door lock device

Info

Publication number: CN116263063A
Application number: CN202111522416.6A
Authority: CN
Inventors: 周建廷
Original assignee: Yeong Guann Co ltd
Current assignee: Yeong Guann Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2023-06-16

Abstract

The invention provides a door lock device, which is used for connecting a pushing door handle and comprises: a shell, a lock tongue, a shifting plate and a limiting element. When the pushing door handle is not pushed, the lock tongue is positioned at a locking position, and the poking plate is positioned at an untwisted position; when the pushing door handle is pushed by external force, the shifting plate rotates to a shifting position and drives the lock tongue to rotate to an unlocking position; when the shifting plate is positioned at the shifting position, the limiting element is rotated to a clamping position, so that the limiting element and the shifting plate can be clamped with each other, and the lock tongue is kept in an unlocking state.

Description

Door lock device

Technical Field

The present invention relates to door locks, and more particularly to a door lock with a rotatable limiting member.

Background

The pushing door handle is mostly used for emergency entrances and exits such as fireproof doors, escape doors and the like, so that people can push the door handle to open the door handle in a proper way when escape is performed, and the influence on escape time due to redundant door opening actions is avoided.

The pushing door handle of the general fireproof door drives the linkage mechanism by the action of the pushing door handle, so as to control the door lock mechanism to lock and unlock the fireproof door, and in the unlocking state, the door lock mechanism can be maintained in the unlocking state by the control of a limiting element.

However, the limiting element of the push door lock is usually designed in a unidirectional limiting manner, and is only applicable to the left door panel or the right door panel according to the direction thereof, which is inconvenient for engineering purchase and use.

In summary, how to provide a door lock device capable of being rapidly limited and suitable for door panels in different directions is a technical problem to be solved by the present invention.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks, the present invention provides a door lock device, which controls locking and unlocking by means of the rotation of the locking bolt driven by the shifting plate, and can be locked by the limiting element during unlocking, so as to maintain the locking bolt in an unlocked state.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a door lock apparatus for connecting a push door handle, the door lock apparatus comprising:

the shell is assembled on a door plate;

the lock tongue is pivoted at one end of the shell and can rotate between a locking position and an unlocking position; when the lock tongue is positioned at the locking position, the lock tongue is positioned outside the shell, and when the lock tongue is positioned at the unlocking position, the lock tongue is positioned in the shell; the spring bolt is provided with an elastic element which is used for enabling the spring bolt to be maintained at the locking position under the condition of no external force compression;

the poking plate is provided with a first end, a second end, a pivoting part and a limiting part, wherein the pivoting part is positioned between the first end and the second end and is pivoted on the shell, so that the poking plate can rotate between an untwisted position and a poked position; the limiting part is arranged between the first end and the second end;

the limiting element is pivoted on the shell and at least provided with a disengaging position and a clamping position; the limiting element is provided with a rotating end part and a limiting end part, the rotating end part extends out of the shell, and the limiting end part is positioned in the shell;

the pushing door handle is provided with a frame seat and a pushing part, wherein the frame seat is fixed on the door plate, and the pushing part is movably arranged on the frame seat and is provided with an unpressed position and a pushed position; the first end of the shifting plate is jointed and abutted against the pushing part, and the second end is jointed and abutted against the lock tongue;

when the pushing part is positioned at the non-pushing position, the lock tongue is positioned at the locking position, and the poking plate is positioned at the non-poking position;

when the pushing part is pushed by external force and moves from the non-pushing position to the pushing position, the first end of the shifting plate is pushed to enable the shifting plate to rotate from the non-shifting position to the shifting position, and then the second end drives the lock tongue to rotate from the locking position to the unlocking position;

when the shifting plate is positioned at the shifting position, the limiting element is rotated from the disengaging position to the clamping position, so that the limiting end part and the limiting part of the shifting plate are mutually clamped, the shifting plate is limited at the shifting position, and the lock tongue is further maintained at the unlocking position.

The door lock device, wherein: the pulling plate is provided with a driving part; the driving element is pivoted on the shell and at least provided with an unopened position and a pushed position, and the driving element is provided with an adjusting end and a propping end; the linkage part is a bending plate body, and one end of the linkage part inclines towards the direction of the driving element; when the driving element is located at the non-pushing position, the pushing top end is separated from the linkage part, and when the driving element rotates to the pushing position, the pushing top end pushes the shifting plate to rotate to the shifting position.

The door lock device, wherein: the limiting element is arranged on one side of the shell away from the door plate, and the driving element is arranged on the other side of the shell opposite to the limiting element.

The door lock device, wherein: the shifting plate is provided with a first plate body and a second plate body, wherein the first plate body and the second plate body form a preset included angle, the first end is arranged at the tail end of the first plate body, and the second end is arranged at the tail end of the second plate body.

The door lock device, wherein: the limiting part of the shifting plate is a bending plate body, and one end of the bending plate body extends obliquely towards the direction of the limiting element; the tail end of the limiting part is provided with a clamping concave part, and the tail end of the limiting end part of the limiting element is provided with a clamping convex part; when the shifting plate is positioned at the shifting position, the limiting element is rotated to the clamping position, so that the clamping convex part can be clamped in the clamping concave part.

The door lock device, wherein: the first end is arc-shaped and convex.

The door lock device, wherein: the shell is provided with a limiting block, and the lock tongue is provided with a limiting rod; when the lock tongue rotates from the unlocking position to the locking position, the limiting rod abuts against the limiting block, and the rotation range of the lock tongue is further limited.

The door lock device, wherein: the elastic element is a torsion spring, one end of the torsion spring is abutted against the shell, and the other end of the torsion spring is connected with the lock tongue.

The invention can be clamped on the shifting plate by only using the rotation of the limiting element to keep the lock tongue in an unlocking state, and the door lock device can be simultaneously applicable to a left door plate or a right door plate by virtue of the design (180-degree rotation) that the limiting element can rotate upwards or downwards, so that the door lock device has no limitation on the use direction.

The following detailed description of specific embodiments is provided with the accompanying drawings so as to provide a further understanding of the technical features of the present invention.

Drawings

Fig. 1 is a schematic view showing a door lock apparatus according to the present invention mounted to a door panel.

Fig. 2 is an exploded view of the door lock device of the present invention.

Fig. 3 is a schematic view of the connection pressing portion of the present invention.

Fig. 4 is an assembled schematic view of the lock tongue and the shift lever of the present invention.

FIG. 5 is a schematic view of the present invention in an unpressed state.

Fig. 6 is a schematic view of the present invention in a pushing state.

Fig. 7A is a schematic view of the spacing element in the disengaged position.

Fig. 7B is a side view of the spacing element of the present invention in a disengaged position.

Fig. 8A is a schematic view of the limiting element in the engaging position.

Fig. 8B is a schematic side view of the spacing element of the present invention in the engaged position.

Fig. 9A is a schematic diagram of a driving device according to the present invention in state one.

Fig. 9B is a side view of the driving device of the present invention in state one.

Fig. 10A is a schematic diagram of a driving device in a second state according to the present invention.

Fig. 10B is a schematic side view of the driving device of the present invention in the second state.

Reference numerals illustrate: 10-a housing; 11-limiting blocks; 12-positioning concave parts; 20-a lock tongue; 21-a limit rod; 25-an elastic element; 30-shifting plate; 30A-a first plate; 30B-a second plate; 31-a first end; 32-a second end; 33-a pivoting part; 34-a limiting part; 341-an engagement recess; 35-linkage part; 40-limiting elements; 41-turning the end; 42-limiting end part; 421-engagement projections; 50-driving element; 51-an adjustment end; 52-top end; 70-grip; 71-positioning projections; 80-door panels; 90-pushing the door handle; 91-a frame base; 92-pushing part; 93-linkage rod; p11-the unpressed position; p12-pushing position; a P21-locked position; p22-unlocked position; p31-untwisted position; p32-toggle position; p41-disengaged position; p42-the clamping position; p51-unopened position; p52-ejection position.

Detailed Description

Referring to fig. 1 to 6, which show a preferred embodiment of the door lock device of the present invention, the door lock device is used to connect a push door handle 90, which includes: a housing 10, a locking bolt 20, a striking plate 30 and a limiting element 40.

The pushing door handle 90 has a frame 91 and a pushing portion 92, wherein the frame 91 is fixed on a door panel 80 (about the waist of a person) of an escape door or a fire door, and the pushing portion 92 is movably disposed on the frame 91 and has an unpressed position P11 and a pushed position P12.

In practice, the pushing door handle 90 is provided with at least one link 93 and at least one elastic restoring member (not shown), and two ends of the link 93 are pivotally connected to the frame 91 and the pushing portion 92, respectively. When the pressing portion 92 is pressed by an external force, the pressing portion 92 moves from the non-pressing position P11 to the pressing position P12, and at this time, the pressing portion 92 moves in the direction of the frame 91; when the external force is removed, the elastic force of the elastic restoring member pushes the pushing portion 92 back to the non-pushing position P11, and at this time, the pushing portion 92 moves in a direction away from the frame 91.

The housing 10 is assembled to the door panel 80.

The lock tongue 20 is pivoted at one end of the housing 10 and can rotate between a locking position P21 and an unlocking position P22; when the lock tongue 20 is located at the locking position P21, the lock tongue 20 is located outside the housing 10, and when the lock tongue 20 is located at the unlocking position P22, the lock tongue 20 is retracted to be located in the housing 10. The latch 20 has a resilient element 25, and the resilient element 25 is used to maintain the latch 20 in the locking position P21 without being pressed by external force. In this embodiment, the elastic element 25 is a torsion spring, wherein one end abuts against the housing 10, and the other end is connected to the locking tongue 20.

Referring to fig. 4, the housing 10 further has a stopper 11, and the lock tongue 20 further has a stopper rod 21; when the lock tongue 20 rotates from the unlock position P22 to the lock position P21, the stop lever 21 abuts against the stop block 11, so as to limit the rotation range of the lock tongue 20 and keep the lock position P21.

The pulling plate 30 has a first end 31, a second end 32, a pivot portion 33 and a limiting portion 34, wherein the pivot portion 33 is located between the first end 31 and the second end 32 and is pivoted on the housing 10, so that the pulling plate 30 can rotate between a non-pulling position P31 and a pulling position P32. The limiting portion 34 is assembled on the pulling plate 30 and located between the first end 31 and the second end 32.

The limiting element 40 is pivoted on one side of the housing 10, can rotate on the housing 10, and has at least a disengaging position P41 and a engaging position P42, and the limiting element 40 has a rotating end 41 and a limiting end 42, wherein the rotating end 41 extends out of the housing 10, and the limiting end 42 is located in the housing 10.

Wherein the first end 31 of the striking plate 30 is engaged against the pressing portion 92, and the second end 32 is engaged against the tongue 20.

When the pushing portion 92 is located at the non-pushing position P11, the lock tongue 20 is located at the locking position P21, and the striking plate 30 is located at the non-striking position P31.

When the pushing portion 92 is pushed by an external force to move from the non-pushing position P11 to the pushing position P12, the first end 31 of the pulling plate 30 is pushed, so that the pulling plate 30 rotates from the non-pulling position P31 to the pulling position P32, and the second end 32 drives the locking bolt 20 to rotate from the locking position P21 to the unlocking position P22.

When the striking plate 30 is located at the striking position P32, the limiting element 40 is rotated from the releasing position P41 to the engaging position P42, so that the limiting end 42 and the limiting portion 34 of the striking plate 30 can be engaged with each other, the striking plate 30 is limited at the striking position P32, and the lock tongue 20 is maintained at the unlocking position P22.

As shown in fig. 2 and 3, the rotating end 41 may be connected to a handle 70, and when the user rotates the handle 70, the limiting element 40 may be driven to rotate; practically, the handle 70 has a positioning protrusion 71, and the housing 10 has a pair of positioning recesses 12 disposed up and down, and the positioning protrusion 71 can be engaged and positioned in the positioning recess 12; thus, when the handle 70 rotates upward or downward, the positioning protrusion 71 can be engaged with and positioned in the positioning recess 12, so as to limit the rotation range of the handle 70 (in this embodiment, the rotation angle range of the handle 70 is 180 degrees). When the handle 70 is rotated up or down to engage the positioning protrusion 71 with the positioning recess 12 above or the positioning recess 12 below, the limiting element 40 is located at the disengaging position P41, and when the handle 70 is rotated to a horizontal state, the limiting element 40 is located at the engaging position P42.

In this embodiment, the door lock device of the present invention further includes a driving element 50, and the striking plate 30 further includes a linkage portion 35; the driving element 50 is pivoted to the housing 10 and has at least an un-pushed position P51 and a pushed position P52, the driving element 50 has an adjusting end 51 and a stepped supporting end 52, and the adjusting end 51 is connected to a door lock linkage mechanism; the linking portion 35 is a bending plate, and one end of the linking portion is inclined toward the driving element 50. When the driving element 50 is located at the non-pushing position P51, the pushing end 52 is separated from the linking portion 35, and when the driving element 50 rotates to the pushing position P52, the pushing end 52 pushes the dial 30 to rotate to the toggling position P32.

In the present embodiment, the limiting element 40 is disposed on one side of the housing 10 away from the door panel 80, and the driving element 50 is disposed on the other side of the housing 10 opposite to the limiting element 40. The pulling plate 30 is bent and provided with a first plate body 30A and a second plate body 30B, wherein the first plate body 30A and the second plate body 30B form a preset included angle smaller than 180 degrees; the first end 31 of the pulling plate 30 is disposed at the end of the first plate 30A and is in an arc-shaped convex shape, and the second end 32 is disposed at the end of the second plate 30B.

In practice, the limiting portion 34 of the shifting plate 30 is a bent plate body, and one end thereof extends obliquely toward the direction of the limiting element 40; the end of the limiting part 34 is provided with an engaging concave part 341, and the end of the limiting end part 42 of the limiting element 40 is provided with an engaging convex part 421; when the dial 30 is located at the toggling position P32 and the limiting member 40 is rotated to the engaging position P42, the engaging protrusion 421 can be engaged in the engaging recess 341.

Referring to fig. 5, in the state of the present invention when not pressed, the pressing portion 92 is located at the non-pressed position P11, the spring force of the elastic element 25 forces the lock tongue 20 to be located at the locking position P21, and the lock tongue 20 is linked with the dial plate 30 to be located at the non-dialed position P31.

Referring to fig. 6, the present invention is shown in a state of pushing; when the pushing portion 92 is pushed by an external force to move from the non-pushing position P11 to the pushing position P12, the pushing portion 92 pushes the first end 31 of the shifting plate 30, so that the shifting plate 30 rotates from the non-shifting position P31 to the shifting position P32, and the second end 32 drives the locking bolt 20 to rotate from the locking position P21 to the unlocking position P22, and at this time, the locking bolt 20 is retracted from the housing 10 to the housing 10.

When the external force pushing the pushing portion 92 is removed, the pushing portion 92 is restored to the non-pushing position P11 by the elastic force of the elastic restoring member (not shown), and the latch 20 is driven to rotate to the locking position P21 (i.e. restored to the state of fig. 5) by the elastic force of the elastic member 25.

Referring to fig. 7A, 7B, 8A and 8B, when the pushing portion 92 pushes the striking plate 30 to be located at the striking position P32, the limiting element 40 is rotated from the releasing position P41 to the engaging position P42, so that the engaging protrusion 421 of the limiting end 42 and the engaging recess 341 of the limiting portion 34 of the striking plate 30 can be engaged with each other, and the striking plate 30 is limited and fixed at the striking position P32, so that the latch 20 is maintained at the unlocking position P22, and at this time, the door panel 80 can be opened without pushing the pushing door handle 90. As shown in fig. 8B, after the engaging protrusion 421 and the engaging recess 341 are engaged with each other, the striking plate 30 is still limited to the striking position P32 even if the external force of the pressing portion 92 is removed and returns to the non-pressing position P11, so as to keep the lock tongue 20 at the unlocking position P22.

In addition, in addition to the above-mentioned unlocking by the pushing portion 92, the unlocking can be achieved by the driving element 50 according to the present invention; referring to fig. 9A, 9B, 10A and 10B, when a user inserts and rotates the door lock linkage mechanism (not shown) with a key, the adjusting end 51 of the driving element 50 is linked to rotate, so that the driving element 50 rotates from the non-pushing position P51 to the pushing position P52; at this time, the stepped abutting end 52 makes the higher end push the linking portion 35 of the shifting plate 30 upward due to the directional rotation, so as to drive the shifting plate 30 to rotate from the untwisted position P31 to the shifting position P32, and shift the lock tongue 20 to rotate from the locking position P21 to the unlocking position P22, so as to unlock the key.

As can be seen from the above description, the present invention can be engaged with the striking plate 30 only by using the rotation of the limiting element 40 to maintain the latch 20 in the unlocked state, and the door lock device of the present invention can be applied to the left door panel or the right door panel by virtue of the design (180 degrees rotation) that the limiting element 40 can rotate upwards or downwards, without limitation in use.

The above description is illustrative of the invention and is not to be construed as limiting, and it will be understood by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A door lock apparatus for connecting a push door handle, the door lock apparatus comprising:

the shell is assembled on a door plate;

2. The door lock apparatus as claimed in claim 1, wherein: the pulling plate is provided with a driving part; the driving element is pivoted on the shell and at least provided with an unopened position and a pushed position, and the driving element is provided with an adjusting end and a propping end; the linkage part is a bending plate body, and one end of the linkage part inclines towards the direction of the driving element; when the driving element is located at the non-pushing position, the pushing top end is separated from the linkage part, and when the driving element rotates to the pushing position, the pushing top end pushes the shifting plate to rotate to the shifting position.

3. The door lock apparatus as claimed in claim 2, wherein: the limiting element is arranged on one side of the shell away from the door plate, and the driving element is arranged on the other side of the shell opposite to the limiting element.

4. The door lock apparatus as claimed in claim 1, wherein: the shifting plate is provided with a first plate body and a second plate body, wherein the first plate body and the second plate body form a preset included angle, the first end is arranged at the tail end of the first plate body, and the second end is arranged at the tail end of the second plate body.

5. The door lock apparatus as claimed in claim 1, wherein: the limiting part of the shifting plate is a bending plate body, and one end of the bending plate body extends obliquely towards the direction of the limiting element; the tail end of the limiting part is provided with a clamping concave part, and the tail end of the limiting end part of the limiting element is provided with a clamping convex part; when the shifting plate is positioned at the shifting position, the limiting element is rotated to the clamping position, so that the clamping convex part can be clamped in the clamping concave part.

6. The door lock apparatus as claimed in claim 1, wherein: the first end is arc-shaped and convex.

7. The door lock apparatus as claimed in claim 1, wherein: the shell is provided with a limiting block, and the lock tongue is provided with a limiting rod; when the lock tongue rotates from the unlocking position to the locking position, the limiting rod abuts against the limiting block, and the rotation range of the lock tongue is further limited.

8. The door lock apparatus as claimed in claim 1, wherein: the elastic element is a torsion spring, one end of the torsion spring is abutted against the shell, and the other end of the torsion spring is connected with the lock tongue.