Locking unlocking device of door lock

Abstract

The utility model discloses an unlocking device of a door lock, which comprises a spring bolt piece, a door frame matching piece and the door lock, the spring bolt piece comprises a mounting box and a magnetic spring bolt, the mounting box is embedded in the inner surface of a door frame, the mounting box is provided with a storage groove, and the magnetic spring bolt is rotatably mounted in the storage groove; the door frame matching piece comprises a matching frame and a metal block, the matching frame is provided with a through groove, and the metal block is slidably installed in the through groove; the door lock comprises an inside-door handle, an outside-door handle and an embedded shell, the embedded shell is embedded in the door plate, a working groove is formed in the embedded shell, an extending part is arranged in the working groove, rotating shafts of the inside-door handle and the outside-door handle are connected with driving parts, and the driving parts drive the extending part to extend towards a notch of the working groove. By the adoption of the arrangement, the spring bolt can be stored when not used, and when a door is well matched with the door frame, the spring bolt can automatically stretch into the corresponding clamping groove to be matched with the door frame, so that the door locking function is achieved, and the effect of prolonging the service life of the door lock is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of door lock structures, and particularly relates to a door lock releasing device. Background Art

[0002] Door lock safety has always been a concern for the industry and users. Therefore, a lock tongue is usually set on the door handle. When the door handle is turned, the lock tongue will be retracted into the door frame, thereby realizing the unlocking function; when the door and door frame fit well and the door handle is released, the lock tongue will rebound and extend out and cooperate with the slot on the door frame to realize the door locking function.

[0003] However, in daily use, it is found that when the door is not locked for a long time, the lock tongue will be exposed outside the door frame for a long time, and it is easy to be bumped or hit when passing by. This will reduce the service life of the door lock and it is not aesthetically pleasing. Therefore, there is room for improvement. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a locking release device for a door lock, in which the lock tongue can be stored when not in use. When the door and the door frame fit well together, the lock tongue will automatically extend into the corresponding card slot to fit together, thereby realizing the door locking function, thereby achieving the effect of prolonging the service life of the door lock.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A door lock release device, comprising:

[0007] A lock tongue component, comprising a mounting box and a magnetic lock tongue, wherein the mounting box is embedded in the inner surface of the door frame and has a receiving slot, wherein the magnetic lock tongue is rotatably mounted in the receiving slot;

[0008] A door frame matching piece, comprising a matching frame and a metal block, wherein the matching frame has a through slot, the metal block is placed in the through slot, a slide groove is provided on the inner wall of the matching frame, the slide groove extends along the outside of the door frame, a slider is provided on the middle part of the side surface of the metal block, and the slider is slidably matched with the slide groove;

[0009] A door lock, comprising an inner door handle, an outer door handle and an embedded shell, wherein the inner door handle and the outer door handle are respectively rotatably arranged on two opposite sides of the embedded shell, the embedded shell is embedded in the door panel, and the embedded shell is provided with a working groove, the notch of the working groove faces the through groove, a protruding piece is provided in the working groove, and the rotating shafts of the inner door handle and the outer door handle are both connected to a driving piece, and the driving piece drives the protruding piece to extend toward the notch of the working groove.

[0010] Furthermore, the driving member includes a fan-shaped gear, which rotates coaxially with the rotating shaft of the inner door handle and the outer door handle, and the protruding member includes a rack, which slides in cooperation with the working groove, and the fan-shaped gear is meshed with the rack; when the inner door handle or the outer door handle is rotated, the fan-shaped gear rotates synchronously, and under the meshing transmission action of the fan-shaped gear and the rack, the rack is driven to extend out of the working groove to push the metal block to push the magnetic lock tongue into the storage groove, thereby achieving unlocking.

[0011] Furthermore, the rack adopts a U-shaped rack, the teeth of the U-shaped rack are arranged on the inner surface, the U-shaped rack is slidably adapted to the working groove, the open end of the U-shaped rack faces the working groove, and the fan gear is placed between the two ends of the U-shaped rack, and the fan gear is engaged with the teeth on the inner surface of the two ends of the U-shaped rack; when the inner door handle or the outer door handle is rotated forward or reverse, the fan gear can drive the U-shaped rack to extend out of the working groove to push the metal block to push the magnetic lock tongue into the storage groove, thereby achieving unlocking.

[0012] Furthermore, the driving member also includes a large gear and a small gear, the large gear rotates coaxially with the rotating shaft of the inner door handle and the outer door handle, the sector gear is rotatably connected to the inner wall of the working groove, the tooth surface of the sector gear is provided with a limiting groove, the small gear is plugged into and adapted to the limiting groove, the small gear is connected to the tooth surface of the sector gear through a connecting member, and the small gear is meshed with the large gear.

[0013] Furthermore, a straight groove is provided on the end face of the rack facing the notch of the working groove, a spring is provided in the straight groove, a protrusion is raised on the notch of the working groove, one end of the spring is connected to the inner bottom surface of the straight groove, and the other end of the spring is connected to the protrusion; when the inner door handle or the outer door handle is rotated and released, the spring resets and drives the rack to reset.

[0014] Furthermore, the number of the springs is two, the number of the working grooves is two, the working grooves are distributed on both sides of the open end of the U-shaped rack, and the two springs are respectively arranged in the two working grooves.

[0015] Furthermore, the magnetic lock tongue and the receiving slot are both in a strip shape, one end of the magnetic lock tongue is rotatably mounted on one end of the receiving slot, and the other end of the magnetic lock tongue is opposite to the metal block.

[0016] The utility model has the following beneficial effects:

[0017] The present invention incorporates a magnetic lock tongue in the door frame, a through-slot and a movable metal block in the door frame, and a drive element and a protruding element in the door lock. When the door and door frame are properly aligned, the magnetic lock tongue rotates and deflects toward the metal block due to magnetic force, pushing the metal block into the channel, allowing the magnetic lock tongue to enter the through-slot and achieve the locking function. To unlock the door, by rotating the interior or exterior door handle, the drive element drives the protruding element out of the working slot, pushing the metal block and placing the magnetic lock tongue in the receiving slot, thereby achieving the unlocking function. Compared to the prior art's rebound lock tongue, the lock tongue of the present invention achieves locking through magnetic attraction when locked and retracts into the door frame when opened, reducing exposure to external forces. This effectively prevents impact and increases the service life of the door, while also enhancing the aesthetic appearance of the door structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model in use state.

[0019] Figure 2 This is an exploded view of the structure of the lock tongue component, door frame matching component and door lock of the present invention.

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0021] Figure 4 This is a schematic diagram of the internal structure of the door lock of the present invention.

[0022] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0023] In the picture:

[0024] 1. Installation box; 11. Storage slot; 12. Magnetic lock tongue;

[0025] 2. Matching frame; 21. Through slot; 22. Slide slot; 23. Metal block; 24. Slider;

[0026] 3. Handle inside the door;

[0027] 4. Holding hands outside the door;

[0028] 5. Embedded housing; 51. Working groove; 52. Bump; 53. Big gear; 54. Small gear; 55. Fan gear; 551. Limiting groove; 56. U-shaped rack; 57. Straight groove; 58. Spring. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Terms such as "upper," "inner," "middle," "left," "right," and "one" used in this specification are for ease of description and are not intended to limit the scope of the present invention. Changes or adjustments to these terms, without substantially altering the technical content, are also considered within the scope of the present invention.

[0030] The door lock release device of the present invention can realize that the lock tongue can be retracted when the door is in the open state, which can reduce the situation of external force impact or pedestrians, thereby increasing the service life. At the same time, it can make the surface of the door more beautiful in the open or closed state, which can be more popular and liked by consumers or users.

[0031] The following is an introduction to the mechanical structure of the door lock release device of the present invention:

[0032] like Figures 1 to 5 As shown, a locking release device for a door lock includes a lock tongue member, a door frame matching member and a door lock. The lock tongue member is installed on the door frame, the door frame accessory is installed on the door frame, and the door lock is installed on the door. When locking the door, the lock tongue member is connected to the door frame matching member to achieve the locking function. When opening the door, the connection between the lock tongue member and the door frame matching member is released to achieve the door opening function.

[0033] The lock tongue component includes a mounting box 1 and a magnetic lock tongue 12 . The mounting box 1 is embedded in the inner surface of the door frame. The mounting box 1 is provided with a receiving slot 11 . The magnetic lock tongue 12 is rotatably mounted in the receiving slot 11 .

[0034] The door frame mating component includes a mating frame 2 and a metal block 23. The mating frame 2 has a through slot 21, within which the metal block 23 is positioned. A slide 22 is formed on the inner wall of the mating frame 2 and extends along the outside of the door frame. A slider 24 is provided in the middle of the side of the metal block 23, which slidably engages with the slide 22. Therefore, when the door and door frame are mated, the magnetic lock tongue 12 of the lock bolt moves toward the metal block 23 under the action of magnetic force, pushing the metal block 23 to slide away from the door frame, allowing the magnetic lock tongue 12 to engage with the through slot 21, thereby locking the door.

[0035] The door lock includes an interior handle 3, an exterior handle 4, and an embedded housing 5. The interior handle 3 and exterior handle 4 are rotatably mounted on opposite sides of the embedded housing 5. The embedded housing 5 is embedded in the door panel and defines a working slot 51. The slot opening of the working slot 51 faces the through slot 21. A protruding member is disposed within the working slot 51. The rotating shafts of the interior handle 3 and exterior handle 4 are both connected to a driving member, which drives the protruding member to extend toward the slot opening of the working slot 51. Therefore, when the door is unlocked, the driving member drives the protruding member to extend toward the slot opening of the working slot 51, pushing the metal block 23 to push the magnetic lock tongue 12 into the receiving slot 11, thereby achieving the unlocking function.

[0036] In this embodiment, Figures 1 to 5 As shown, the driving member includes a sector gear 55, which rotates coaxially with the rotating shafts of the interior door handle 3 and the exterior door handle 4. The extending member includes a rack, which slides in conjunction with the working slot 51 and meshes with the sector gear 55. When the interior door handle 3 or the exterior door handle 4 is rotated, the sector gear 55 rotates synchronously. The meshing transmission between the sector gear 55 and the rack drives the rack out of the working slot 51, pushing the metal block 23 and the magnetic lock tongue 12 into the receiving slot 11, thereby unlocking the door. Therefore, the meshing of the sector gear 55 and the rack is primarily intended to control the length of the rack extending beyond the notch of the working slot 51 to prevent damage caused by excessive rack extension, thereby achieving the desired door lock protection function.

[0037] The rack is a U-shaped rack 56, the teeth of which are arranged on the inner surface. The U-shaped rack 56 slides in and out of the working groove 51, with the open end of the U-shaped rack 56 facing into the working groove 51. The fan-shaped gear 55 is placed between the two ends of the U-shaped rack 56, and the fan-shaped gear 55 meshes with the teeth on the inner surface of the two ends of the U-shaped rack 56. When the inner door handle 3 or the outer door handle 4 is rotated forward or reverse, the fan-shaped gear 55 can drive the U-shaped rack 56 to extend out of the working groove 51, thereby pushing the metal block 23 to push the magnetic lock bolt 12 into the receiving groove 11, thereby achieving the unlocking function. Therefore, by using the U-shaped rack, it is possible to achieve the state where the fan-shaped gear 55 is driven to rotate when the inner door handle 3 or the outer door handle 4 is rotated forward or reverse, thereby releasing the locked state of the magnetic lock bolt 12.

[0038] like Figures 1 to 5As shown, to achieve a large angle rotation of 60 to 150 degrees within a small door handle rotation range of approximately 30 to 60 degrees, the sector gear 55 can be rotated through a large angle of 60 to 150 degrees, thereby effectively controlling the extension of the rack or U-shaped rack 56. The drive member also includes a large gear 53 and a small gear 54. The large gear 53 rotates coaxially with the rotating shafts of the interior door handle 3 and the exterior door handle 4. The sector gear 55 is rotatably connected to the inner wall of the working groove 51. The tooth surface of the sector gear 55 is defined by a limit groove 551, and the small gear 54 is pluggably adapted to the limit groove 551. The small gear 54 is connected to the tooth surface of the sector gear 55 via a connecting member (such as a screw or bolt), and the small gear 54 meshes with the large gear 53. Therefore, when the inner door handle 3 or the outer door handle 4 is rotated, the large gear 53 rotates synchronously and drives the small gear 54 to rotate. Therefore, when the inner door handle 3 or the outer door handle 4 is rotated at a small angle, the large gear 53 can be used to drive the small gear 54 to rotate at a large angle, and at the same time drive the sector gear 55 to rotate at a large angle and realize the rack or U-shaped rack 56 to extend to a corresponding length.

[0039] To achieve automatic reset after releasing the inner door handle 3 or the outer door handle 4, a straight groove 57 is formed on the end of the rack facing the notch of the working groove 51. A spring 58 is installed in the straight groove 57. A protrusion 52 protrudes from the notch of the working groove 51. One end of the spring 58 is connected to the inner bottom surface of the straight groove 57, and the other end of the spring 58 is connected to the protrusion 52. The spring 58 is initially in a relaxed state. Therefore, when the inner door handle 3 or the outer door handle 4 is released after rotation, the spring 58 resets and drives the rack back to its original position.

[0040] In order to improve the stability of the sliding return of the U-shaped rack 56 and reduce the occurrence of movement jamming, there are two springs 58 and two working grooves 51, which are distributed on both sides of the open end of the U-shaped rack 56, and the two springs 58 are respectively arranged in the two working grooves 51.

[0041] In this embodiment, the magnetic lock tongue 12 and the receiving slot 11 are both in the shape of a bar. One end of the magnetic lock tongue 12 is rotatably mounted on one end of the receiving slot 11, and the other end of the magnetic lock tongue 12 is directly opposite the metal block 23. Therefore, under the magnetic attraction of the metal block 23, the magnetic lock tongue 12 will move toward the metal block 23, and the metal block 23 will slide inward and insert the magnetic lock tongue 12 into the channel to lock the door.

[0042] In summary, the present invention provides a magnetic lock tongue 12 in the door frame, a through-slot 21 and a movable metal block 23 in the door frame, and a drive member and a protruding member in the door lock. Therefore, when the door and door frame are properly aligned, the magnetic lock tongue 12 is rotated and deflected toward the metal block 23 due to magnetic force, pushing the metal block 23 into the channel, allowing the magnetic lock tongue 12 to enter the through-slot 21 and achieve the locking function. To unlock the door, by rotating the interior door handle 3 or the exterior door handle 4, the drive member drives the protruding member out of the working slot 51, pushing the metal block 23 and placing the magnetic lock tongue 12 in the receiving slot 11, thereby achieving the unlocking function. Compared to the prior art that uses a rebound lock tongue, the lock tongue of the present invention can be locked through magnetic attraction when locked and can be retracted into the door frame when the door is opened, reducing the risk of prolonged exposure. This effectively prevents external impact and improves the service life, while also enhancing the aesthetic appearance of the door structure.

[0043] The implementation methods of the present invention are not limited to this. According to the above content of the present invention, by utilizing common technical knowledge and customary means in this field, without departing from the above basic technical ideas of the present invention, the present invention can also make other various forms of modification, replacement or combination, all of which fall within the scope of protection of the present invention.

Claims

1. A door lock release device, characterized in that: include: A lock tongue component, comprising a mounting box and a magnetic lock tongue, wherein the mounting box is embedded in the inner surface of the door frame and has a receiving slot, wherein the magnetic lock tongue is rotatably mounted in the receiving slot; A door frame matching piece, comprising a matching frame and a metal block, wherein the matching frame has a through slot, the metal block is placed in the through slot, a slide groove is provided on the inner wall of the matching frame, the slide groove extends along the outside of the door frame, a slider is provided on the middle part of the side surface of the metal block, and the slider is slidably matched with the slide groove; A door lock, comprising an inner door handle, an outer door handle and an embedded shell, wherein the inner door handle and the outer door handle are respectively rotatably arranged on two opposite sides of the embedded shell, the embedded shell is embedded in the door panel, and the embedded shell is provided with a working groove, the notch of the working groove faces the through groove, a protruding piece is provided in the working groove, and the rotating shafts of the inner door handle and the outer door handle are both connected to a driving piece, and the driving piece drives the protruding piece to extend toward the notch of the working groove.

2. The door lock release device according to claim 1, wherein: The driving member includes a fan-shaped gear, which rotates coaxially with the rotating shaft of the inner door handle and the outer door handle. The protruding member includes a rack, which slides in cooperation with the working groove, and the fan-shaped gear is meshed with the rack. When the inner door handle or the outer door handle is rotated, the fan-shaped gear rotates synchronously. Under the meshing transmission action of the fan-shaped gear and the rack, the rack is driven to extend out of the working groove, push the metal block, and push the magnetic lock tongue into the storage groove, thereby achieving unlocking.

3. The door lock release device according to claim 2, wherein: The rack adopts a U-shaped rack, the teeth of the U-shaped rack are arranged on the inner surface, the U-shaped rack is slidably adapted to the working groove, the open end of the U-shaped rack faces the working groove, the fan-shaped gear is placed between the two ends of the U-shaped rack, and the fan-shaped gear is engaged with the teeth on the inner surface of the two ends of the U-shaped rack; when the inner door handle or the outer door handle is rotated forward or reverse, the fan-shaped gear can drive the U-shaped rack to extend out of the working groove to push the metal block to push the magnetic lock tongue into the storage groove, thereby achieving unlocking.

4. The door lock release device according to claim 3, wherein: The driving member also includes a large gear and a small gear. The large gear rotates coaxially with the rotating shaft of the inner door handle and the outer door handle. The sector gear is rotatably connected to the inner wall of the working groove. A limiting groove is provided on the tooth surface of the sector gear. The small gear is plugged into and adapted to the limiting groove. The small gear is connected to the tooth surface of the sector gear through a connecting member, and the small gear is meshed with the large gear.

5. The door lock release device according to claim 3 or 4, wherein: A straight groove is provided on the end face of the rack facing the notch of the working groove, a spring is provided in the straight groove, a bump is raised on the notch of the working groove, one end of the spring is connected to the inner bottom surface of the straight groove, and the other end of the spring is connected to the bump; when the inner door handle or the outer door handle is rotated and released, the spring resets and drives the rack to reset.

6. The door lock release device according to claim 5, wherein: There are two springs and two working grooves, which are distributed on both sides of the open end of the U-shaped rack. The two springs are respectively arranged in the two working grooves.

7. The door lock release device according to claim 1, wherein: The magnetic lock tongue and the receiving slot are both in a strip shape. One end of the magnetic lock tongue is rotatably mounted on one end of the receiving slot, and the other end of the magnetic lock tongue is directly opposite to the metal block.

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