Lock body structure and door

Abstract

The utility model relates to the technical field of lockset, specifically, relates to a lock body structure and door, and the lock body structure includes: casing, one side is equipped with lock hole, sliding frame, fixed in the casing, one end is opposite to lock hole arrangement, one side forms the through -hole, the turnover tongue, is located in the sliding frame, first spring, one end is connected on the turnover tongue, has the force of the direction of lock hole to the turnover tongue, the knob, rotationally is established in the casing, one end forms the limiting portion opposite with the through -hole, drive arrangement, be located in the casing, can drive the knob rotation, make the limiting portion enter the sliding frame or remove from the sliding frame, wherein, the limiting portion to the distance of the rotating shaft of the knob is L1, the distance of the drive arrangement with the connecting place of the knob to the rotating shaft is L2, L1 < L2. When the lock body structure is applied on the door, even if there is certain installation error between the lock body structure and the buckle box, the lock body structure can also normally realize unlocking.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a lock body structure and a door. Background Technology

[0002] Locks using a flip-type latch retract into the lock body before popping out into the strike plate when the door is closed. If there is an installation error between the lock body and the strike plate, the flip-type latch may be squeezed by the inner wall of the strike plate during closing. This will cause the flip-type latch to be subjected to pressure in the direction of rotation, thus jamming the structure that restricts its rotation and affecting the subsequent unlocking function.

[0003] Taking Chinese patent 2022101631443 as an example, after the door is closed, although the flip-top tongue 22 extends into the latch box, if there is an installation error between the latch box and the lock, the inner wall of the latch box will push the flip-top tongue 22 to rotate at a certain angle, which can easily cause it to... Figure 1 The right end of the flip tongue 22 moves toward the limiting part 411. If the installation error is large, the right end of the flip tongue 22 will press tightly against the limiting part 411. When unlocking is required later, the first actuating part 41 will be difficult to rotate because the limiting part 411 on the left end is squeezed, making it difficult to unlock. Utility Model Content

[0004] This utility model was made to solve the above-mentioned technical problems. Its purpose is to provide a lock body structure and door with a flip-top tongue, so that the lock body structure can still be unlocked normally even if there is a certain installation error between the lock body structure and the snap box.

[0005] According to one embodiment of the present invention, a lock body structure is provided, comprising: a housing with a lock hole on one side; a sliding frame fixed inside the housing, one end of which is disposed opposite to the lock hole, and a through hole formed on one side; a flip tongue disposed in the sliding frame; a first spring, one end of which is connected to the flip tongue and applies a force toward the lock hole to the flip tongue; a toggle block rotatably disposed in the housing, one end of which has a limiting part opposite to the through hole; and a driving device disposed in the housing, capable of driving the toggle block to rotate, causing the limiting part to enter or move out of the sliding frame; wherein, the distance from the limiting part to the rotation axis of the toggle block is L1, and the distance from the connection point of the driving device and the toggle block to the rotation axis is L2, where L1 < L2.

[0006] As one implementation, L2 ≥ 2L1.

[0007] In one embodiment, the driving device includes a rotating wheel rotatably disposed within the housing, the rotating wheel having a first protrusion formed thereon, and the actuating block having a groove for accommodating the first protrusion.

[0008] In one embodiment, the driving device includes: a second spring that applies a force to the actuating block, causing the limiting portion to enter the sliding frame; and a rotating wheel rotatably disposed in the housing, with a first protrusion formed on one side, the first protrusion abutting against the side of the actuating block; wherein, when the rotating wheel rotates about a first direction, the first protrusion can push the actuating block to rotate, causing the limiting portion to move out of the sliding frame.

[0009] In one embodiment, the driving device includes: a second spring that applies a force to the actuating block, causing the limiting portion to enter the sliding frame; a conversion plate rotatably disposed in the housing, with a second protrusion formed on one side, the second protrusion abutting against the side of the actuating block; and a rotating wheel rotatably disposed coaxially with the conversion plate in the housing, with a first protrusion formed on one side, the first protrusion being connected to the conversion plate, the rotation radius of the first protrusion being smaller than the rotation radius of the second protrusion; wherein, when the rotating wheel rotates about a first direction, the first protrusion can push the conversion plate to rotate, thereby causing the second protrusion to push the actuating block to rotate, causing the limiting portion to move out of the sliding frame.

[0010] In one embodiment, a third protrusion is also formed on the conversion piece, and the side of the third protrusion abuts against the side of the first protrusion.

[0011] In one embodiment, the driving device further includes a drive motor, the output end of which is connected to the rotating wheel and can drive the rotating wheel to rotate.

[0012] As one embodiment, the actuating block is provided with an arc-shaped limiting hole sleeved on the rotating shaft of the rotating wheel.

[0013] As one embodiment, the lock body structure further includes: a positioning strip plate, which passes through the slot formed on the bottom surface of the sliding frame and spans across the sliding frame, with one end having a positioning plate that can abut against the flip tongue; wherein, the first spring is sleeved on the positioning strip plate, with one end connected to the positioning plate and the other end connected to the inner wall of the sliding frame.

[0014] According to one embodiment of the present invention, a door is provided, comprising: a door leaf, one side of which is provided with a lock body structure as described above; and a door frame, one side of which is provided with a latch box opposite to the lock body structure.

[0015] Based on the above description and practice, in the lock body structure of this utility model, the distance from the limiting part to the rotation axis of the actuating block is L1, and the distance from the connection point of the driving device and the actuating block to the rotation axis is L2, and L1 < L2. Based on the lever principle, even if there are installation errors between the lock body structure and the latch box, causing the flip tongue to press tightly against the limiting part after the door is closed and locked, the driving device can still drive the actuating block to rotate with a relatively small force, thereby achieving unlocking. Specifically, the force exerted by the driving device on the actuating block to drive its rotation is obviously less than the resistance exerted by the flip tongue on the limiting part. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the lock body in the locked state in one embodiment of the present utility model, wherein the limiting part 41 is located inside the sliding frame.

[0017] Figure 2 This is a schematic diagram of the internal structure of the lock body structure after the unlocking action is completed in one embodiment of the present utility model, wherein the limiting part 41 moves outside the sliding frame.

[0018] Figure 3 This is a schematic diagram of the assembly of the toggle block, the conversion plate and the rotating wheel in the lock body structure according to one embodiment of the present utility model.

[0019] Figure 4 and Figure 5 This is an exploded structural diagram of the lock body structure, including the actuating block, the conversion plate, and the rotating wheel, from two different perspectives in one embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the internal structure of the lock body in the locked state in another embodiment of the present invention.

[0021] The attached figures are labeled as follows: 11. Housing; 12. Sliding frame; 13. Flip tongue; 14. Toggle block; 15. Adapter plate; 16. Rotating wheel; 17. Drive motor; 18. Positioning strip; 19. Positioning plate; 21. First spring; 22. Second spring; 31. First rotating shaft; 32. Second rotating shaft; 41. Limiting part; 42. Limiting hole; 43. Groove; 51. First protrusion; 52. Second protrusion; 53. Third protrusion. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0023] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] According to one embodiment of the present invention, a lock body structure and a door having the lock body structure are provided. Please refer to... Figures 1 to 5 The lock body structure in this embodiment includes a housing 11, a sliding frame 12, a flip tongue 13, a first spring 21, a toggle block 14, and a drive device.

[0026] Specifically, the housing 11 is formed by two half-shells fastened together, forming a cavity in the middle to accommodate the aforementioned sliding frame 12, flip tongue 13, first spring 21, actuating block 14, and driving device. The accompanying drawings show only one half-shell of the housing 11 to illustrate the internal structure. A locking hole is provided on one side of the housing wall of the housing 11 for the flip tongue 13 to extend.

[0027] The sliding frame 12 is a U-shaped frame, fixedly mounted on the inner wall of the housing 11, with its open end facing the lock hole, allowing the flip tongue 13 to flip inside and slide along the length of the sliding frame 12. A through hole is formed on one side wall of the sliding frame 12. The first spring 21 is a compression spring, with one end connected to the flip tongue 13 and the other end connected to the inner wall of the bottom surface of the sliding frame 12. The first spring 21 applies a force to the flip tongue 13 toward the lock hole, enabling the flip tongue 13 to pass through the lock hole and be outside the housing 11.

[0028] When this lock structure is applied to a door, during the closing process, the inclined surface of the flip-tab 13 is pressed into the sliding frame 12 by the door frame, while the first spring 21 is compressed and stores force. Therefore, after the door is closed, the first spring 21 can eject the flip-tab 13 out of the housing 11. During the opening process, the door frame presses the side of the flip-tab 13, causing the flip-tab 13 to flip within the sliding frame 12. Because its side is subjected to the force applied by the door frame, this force has a component along the length of the first spring 21, thus causing the flip-tab 13 to retract into the housing 11, thereby completing the unlocking and opening process. In other words, the lock can be locked by restricting the flip-tab 13 from flipping. In addition, to enhance the stability of the first spring 21, a positioning strip 18 is provided along its length inside the sliding frame 12. The positioning strip 18 passes through a slot provided on the bottom surface of the sliding frame 12 and spans across the sliding frame 12. One end of the positioning strip 18 that extends into the sliding frame 12 is provided with a positioning plate 19 that can abut against the flip tongue 13. The first spring 21 is connected to the positioning plate 19. Furthermore, the specific structure of the flip tongue 13 is prior art and not an innovation of this utility model, therefore it will not be described in detail.

[0029] The actuating block 14 is rotatably disposed in the housing 11, and a limiting portion 41 is formed at one end near the sliding frame 12, which is opposite to the through hole on the sliding block. Figure 1 As shown, when locking, the toggle block 14 rotates clockwise, and the limiting part 41 can pass through the through hole into the sliding frame 12 to restrict the flipping tongue 13 from flipping; Figure 2 As shown, during unlocking, the toggle block 14 rotates counterclockwise, and the limiting part 41 moves outside the sliding frame 12, releasing the restriction on the flip tongue 13. The driving device is provided in the housing 11 and can drive the toggle block 14 to rotate clockwise and counterclockwise, thereby causing the limiting part 41 to enter or move out of the sliding frame 12 in the manner described above, realizing locking and unlocking.

[0030] In this embodiment, the rotation axis of the toggle block 14 is denoted as the first rotation axis 31, such as... Figure 1 and Figure 2As shown, the distance from the limiting part 41 to the first rotating shaft 31 is L1, and the distance from the connection point between the driving device and the actuating block 14 to the first rotating shaft 31 is L2, where L1 < L2. Based on the lever principle, even if there is an installation error between the lock body structure and the latch box, causing the flip tongue 13 to press tightly against the limiting part 41 after the door is closed and locked, the driving device can still drive the actuating block 14 to rotate with a relatively small force, thereby achieving unlocking. The force exerted by the driving device on the actuating block 14 to drive its rotation is obviously less than the resistance exerted by the flip tongue 13 on the limiting part 41.

[0031] Furthermore, in this embodiment, L2 ≥ 2L1. With this structural configuration, the drive device can unlock with a smaller force.

[0032] In addition, in this embodiment, the driving device includes a second spring 22, a conversion plate 15, and a rotating wheel 16. Figure 1 and Figure 2 As shown, the second spring 22 is a torsion spring, with one end abutting against the inner wall of the housing 11 and the other end abutting against the left end of the actuating block 14. The second spring 22 applies an upward force to the actuating block 14, allowing the limiting part 41 to enter the sliding frame 12.

[0033] The conversion plate 15 is rotatably disposed within the housing 11, and a second protrusion 52 extending toward the actuating block 14 is formed on one side of the conversion plate 15. The second protrusion 52 abuts against the side of the actuating block 14. The rotating wheel 16 is rotatably disposed within the housing 11 coaxially with the conversion plate 15, and a first protrusion 51 extending toward the conversion plate 15 is formed on one side of the rotating wheel 16. The first protrusion 51 is connected to the conversion plate 15, and the rotation radius of the first protrusion 51 is smaller than the rotation radius of the second protrusion 52.

[0034] When the rotating wheel 16 rotates in the first direction, the first protrusion 51 pushes the conversion piece 15 to rotate, which in turn causes the second protrusion 52 to push the actuating block 14 to rotate, causing the limiting part 41 to move out of the sliding frame 12. Figure 1 and Figure 2 For example, the rotation axis of the rotating wheel 16 is designated as the second rotation axis 32. When the rotating wheel 16 rotates counterclockwise around the second rotation axis 32, the first protrusion 51 pushes the conversion piece 15 to rotate counterclockwise synchronously. Correspondingly, the second protrusion 52 pushes the right end of the toggle block 14 to move upward. At this time, the toggle block 14 rotates counterclockwise around the first rotation axis 31, and the limiting part 41 can be moved out of the sliding frame 12, releasing the limitation on the flip tongue 13 and achieving unlocking.

[0035] In existing toggle blocks 14, the length of the right side portion of the first rotating shaft 31 is usually the same as the length of the left side portion. However, in this embodiment, to facilitate the removal of the limiting part 41 from the sliding frame 12, the length of the right side portion of the first rotating shaft 31 of the toggle block 14 is greater than the length of the left side portion. Correspondingly, in order to generate sufficient displacement for the limiting part 41 to move out of the sliding frame 12, the right end of the toggle block 14 in this embodiment needs to generate a larger displacement compared to the conventional toggle block 14. That is, the driving device needs to drive the right end of the toggle block 14 to generate a larger displacement in order to achieve unlocking. In this embodiment, after setting the aforementioned conversion piece 15, since the rotation radius of the first protrusion 51 is smaller than the rotation radius of the second protrusion 52, without changing the size of the rotating wheel 16 in the existing lock body structure, compared to not setting the conversion piece 15, the rotating wheel 16 can rotate by the same angle to generate a larger displacement at the right end of the toggle block 14, thereby achieving unlocking.

[0036] Furthermore, in this embodiment, a third protrusion 53 is also formed on the conversion piece 15. For example... Figure 4 and Figure 5 As shown, the second protrusion 52 and the third protrusion 53 are respectively disposed on both sides of the conversion plate 15. The second protrusion 52 is used to connect the conversion plate 15 and the actuating block 14. The side of the third protrusion 53 abuts against the side of the first protrusion 51, and is used to connect the conversion plate 15 and the rotating wheel 16. By adding the third protrusion 53, the stability of the linkage between the rotating wheel 16, the conversion plate 15 and the actuating block 14 can be improved.

[0037] In one embodiment, the drive device includes a second spring 22 and a rotating wheel 16. The second spring 22 applies a force to the actuating block 14, allowing the limiting part 41 to enter the sliding frame 12. The rotating wheel 16 is rotatably disposed in the housing 11, with a first protrusion 51 formed on one side, which abuts against the side of the actuating block 14. When the rotating wheel 16 rotates about a first direction, the first protrusion 51 can push the actuating block 14 to rotate, causing the limiting part 41 to move out of the sliding frame 12. Compared with the conventional lock body structure, this type of drive device requires a larger diameter for the rotating wheel 16 to ensure sufficient displacement at the right end of the actuating block 14 to allow the limiting part 41 to move out of the sliding frame 12.

[0038] In yet another embodiment, the drive device includes a rotating wheel 16. For example... Figure 6As shown, the rotating wheel 16 is rotatably mounted in the housing 11, with a first protrusion 51 formed on one side. Simultaneously, a groove 43 is provided on the actuating block 14 to accommodate the first protrusion 51. The first protrusion 51 is located in the groove 43. When the rotating wheel 16 rotates clockwise, it causes the actuating block 14 to rotate clockwise, thereby moving the limiting part 41 into the sliding frame 12, achieving locking; when the rotating wheel 16 rotates counterclockwise, it causes the actuating block 14 to rotate counterclockwise, thereby moving the limiting part 41 outside the sliding frame 12, achieving unlocking.

[0039] Furthermore, in the above embodiments, the driving device also includes a drive motor 17, the output end of which is connected to the rotating wheel 16 and can drive the rotating wheel 16 to rotate. For example, the output end of the drive motor 17 is provided with a gear that meshes with the rotating wheel 16, which can conveniently, quickly and accurately control the rotation direction and rotation angle of the rotating wheel 16, facilitating precise unlocking / locking.

[0040] In addition, in this embodiment, the actuating block 14 is provided with an arc-shaped limiting hole 42 sleeved on the second rotating shaft 32. By setting the length of the arc-shaped limiting hole 42, the clockwise and counterclockwise rotation angles of the actuating block 14 can be limited, thereby improving the stability of the lock body structure during use.

[0041] In this embodiment, the door includes a door leaf and a door frame. The aforementioned lock body structure is located on one side of the door leaf, and a strike plate is located on one side of the door frame, opposite to the lock body structure. After the door is closed, the flip-out tongue 13, aligned with the strike plate, can penetrate into the strike plate to lock the door. In practical applications, even with some installation error between the lock body structure and the strike plate, unlocking can still be achieved smoothly.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lock body structure, characterized in that, include: The casing has a lock hole on one side; A sliding frame is fixed inside the housing, with one end facing the lock hole and a through hole formed on one side; The flip tongue is positioned within the sliding frame; A first spring, one end of which is connected to the flipping tongue, applies a force toward the lock hole to the flipping tongue; The actuating block is rotatably disposed in the housing, and one end of it has a limiting part opposite to the through hole; A driving device, disposed in the housing, is capable of driving the actuating block to rotate, so that the limiting part enters or moves out of the sliding frame; Wherein, the distance from the limiting part to the rotation axis of the actuating block is L1, and the distance from the connection point of the driving device and the actuating block to the rotation axis is L2, where L1 < L2.

2. The lock body structure as described in claim 1, characterized in that, L2≥2L1.

3. The lock body structure as described in claim 1, characterized in that, The driving device includes a rotating wheel rotatably disposed within the housing, a first protrusion formed on the rotating wheel, and a groove for accommodating the first protrusion on the actuating block.

4. The lock body structure as described in claim 1, characterized in that, The driving device includes: The second spring applies a force to the actuating block, causing the limiting part to enter the sliding frame; A rotating wheel is rotatably disposed in the housing, and a first protrusion is formed on one side of the wheel, which abuts against the side of the actuating block. When the rotating wheel rotates around the first direction, the first protrusion can push the actuating block to rotate, causing the limiting part to move out of the sliding frame.

5. The lock body structure as described in claim 1, characterized in that, The driving device includes: The second spring applies a force to the actuating block, causing the limiting part to enter the sliding frame; The conversion plate is rotatably disposed in the housing, and a second protrusion is formed on one side, the second protrusion abutting against the side of the actuating block; A rotating wheel, which rotates coaxially with the conversion plate, is disposed in the housing. A first protrusion is formed on one side of the wheel. The first protrusion is connected to the conversion plate. The rotation radius of the first protrusion is smaller than that of the second protrusion. When the rotating wheel rotates around the first direction, the first protrusion can push the conversion plate to rotate, which in turn causes the second protrusion to push the toggle block to rotate, so that the limiting part moves out of the sliding frame.

6. The lock body structure as described in claim 5, characterized in that, A third protrusion is also formed on the conversion plate, and the side of the third protrusion abuts against the side of the first protrusion.

7. The lock body structure as described in any one of claims 3 to 6, characterized in that, The driving device also includes a drive motor, the output end of which is connected to the rotating wheel and can drive the rotating wheel to rotate.

8. The lock body structure as described in any one of claims 3 to 6, characterized in that, The actuating block is provided with an arc-shaped limiting hole fitted onto the rotating shaft of the rotating wheel.

9. The lock body structure as described in claim 1, characterized in that, Also includes: A positioning strip is provided across the sliding frame by passing through a slot formed on the bottom surface of the sliding frame, and one end of the strip has a positioning plate that can abut against the flip tongue. The first spring is sleeved on the positioning strip, with one end connected to the positioning strip and the other end connected to the inner wall of the sliding frame.

10. A door, characterized in that, include: The door leaf has a lock body structure as described in any one of claims 1 to 9 on one side; The door frame has a latch box on one side that is opposite to the lock body structure.

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