Indoor door fingerprint lock

Abstract

The utility model provides an interior door fingerprint lock, relates to fingerprint lock field, interior door fingerprint lock includes fingerprint lock body, fingerprint lock body is equipped with password area, turn handle and lock hole, turn handle is equipped with fingerprint identification area, the lock hole is located in the lock slot of fingerprint lock body, its characterized in that: fingerprint lock body outer wall corresponding lock slot is articulated with the cover plate, and the cover plate is equipped with the fingerprint identification area. A gas conveying device is installed on the cover plate, the periphery of one end of the gas conveying device is fixedly communicated with an annular gas bag, the gas conveying device can enable the gas bag to be in a bulged or contracted state, and an outer flexible sealing ring and an inner flexible sealing ring are fixed to the inner wall of the locking groove. According to the flexible sealing device, the supporting rod is pushed to drive the piston to move towards the inner side of the movable groove, the piston injects gas into the annular air bag through the ventilation cavities, the stability of the supporting rod and the piston can be kept through the driving piece, and the supporting rod can be continuously pushed to move.

Description

Technical Field

[0001] This utility model relates to the field of fingerprint locks, and more particularly to fingerprint locks for interior doors. Background Technology

[0002] Fingerprint locks are smart locks, a perfect fusion of computer information technology, electronic technology, mechanical technology, and modern hardware craftsmanship. The characteristics of fingerprints have become the most important evidence for identity verification and are widely used in public security criminal investigation and judicial fields.

[0003] Fingerprint locks utilize the capacitance difference between the ridges and valleys of a fingerprint to form an image. When a finger lightly touches the surface, the sensor detects the charge distribution to generate fingerprint patterns. It then extracts detailed feature points (such as endpoints and bifurcation points) from the fingerprint image to generate a unique feature vector, achieving fingerprint recognition. Fingerprint authentication is convenient, fast, and accurate. With the popularization of technology and the development of smart homes, more and more people are choosing fingerprint locks.

[0004] Fingerprint recognition may fail when fingers are wet (such as after washing hands), have wounds, are worn, or have dirt on them, resulting in the inability to unlock. Therefore, fingerprint locks usually have a keyhole for a backup key. Fingerprint locks installed on interior doors also have certain drawbacks depending on environmental factors. In the humid climate of southern China or near bathrooms and kitchens, the humid environment may cause the keyhole to rust, affecting normal unlocking.

[0005] Therefore, it is necessary to provide a new indoor door fingerprint lock to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an indoor door fingerprint lock.

[0007] The indoor door fingerprint lock provided by this utility model includes a fingerprint lock body, on which a password area, a rotary handle, and a lock hole are installed. A fingerprint recognition area is installed on the rotary handle, and the lock hole is located in a lock groove opened in the fingerprint lock body. The feature is that a cover plate is hinged to the outer wall of the fingerprint lock body at the lock groove, and a gas delivery device is installed on the cover plate. One end of the gas delivery device is fixedly connected to an annular airbag. The gas delivery device can make the airbag in a state of inflation or deflation. An outer flexible sealing ring and an inner flexible sealing ring are fixed to the inner wall of the lock groove. When the airbag is in an inflated state, the airbag is squeezed between the outer flexible sealing ring and the inner flexible sealing ring.

[0008] Preferably, the gas delivery device includes a drive component, a support rod, a piston, a vent plate, and vent chambers. The support rod is movably disposed within a movable groove in the cover plate. One end of the support rod is fixed to the piston. The vent plate is fixedly connected to the end of the cover plate. The air bladder is fixedly connected to the periphery of the vent plate. The vent plate has multiple vent chambers that communicate with the inner cavity of the movable groove and the inner cavity of the air bladder. The drive component can drive the support rod to move within the movable groove.

[0009] Preferably, the driving component includes a rotating ring, an outer ring, and an inner ring. The rotating ring is sleeved on the support rod and is rotatably connected to the support rod. The outer ring is fixedly sleeved on the rotating ring, and the inner ring is fixedly connected to the cover plate. The inner wall of the outer ring is threadedly connected to the outer wall of the inner ring.

[0010] Preferably, a plurality of rotating plates are fixed on the outer ring, and finger holes are provided on the rotating plates.

[0011] Preferably, the multiple ventilation chambers on the ventilation plate are distributed in a ring-shaped structure.

[0012] Preferably, both the outer flexible sealing ring and the inner flexible sealing ring are made of rubber.

[0013] Compared with related technologies, the indoor door fingerprint lock provided by this utility model has the following beneficial effects:

[0014] 1. Rotate the cover plate so that it fits against the fingerprint lock body. Push the support rod, which in turn moves the piston into the movable groove. The piston injects gas into the annular airbag through multiple ventilation chambers. When the support rod moves to the point where the outer ring contacts the inner ring, the outer ring can be rotated. Since the outer ring and inner ring are threadedly connected and the outer ring is rotatably connected to the support rod, when the outer ring rotates, the frictional resistance between the piston and the inner wall of the movable groove prevents the support rod from rotating with the outer ring. The outer ring continues to rotate towards the inner ring, causing the support rod to continue pushing the piston into the movable groove. When the airbag is inflated, it is squeezed between the outer flexible sealing ring and the inner flexible sealing ring, thus providing a certain degree of sealing for the lock groove.

[0015] 2. Through the threaded connection between the outer ring and the inner ring, the airbag is squeezed between the outer flexible sealing ring and the inner flexible sealing ring. Due to the threaded limiting effect, the stability of the support rod and the piston is maintained. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the indoor door fingerprint lock provided by this utility model;

[0017] Figure 2 for Figure 1 A cross-sectional structural schematic diagram of the lock groove shown;

[0018] Figure 3 for Figure 1 The diagram shows a partial structural representation of the structure. Figure 1 ;

[0019] Figure 4 for Figure 1 The diagram shows a partial structural representation of the structure. Figure 2 ;

[0020] Figure 5 for Figure 4 The diagram shows a decomposed structural representation of the structure.

[0021] Figure 6 for Figure 5 A schematic diagram of the structure from another angle.

[0022] The following are the labels in the diagram: 1. Fingerprint lock body; 2. Password area; 3. Turn handle; 4. Keyhole; 5. Fingerprint recognition area; 6. Lock groove; 7. Cover plate; 8. Airbag; 9. Outer flexible sealing ring; 10. Inner flexible sealing ring; 11. Support rod; 12. Piston; 13. Vent plate; 14. Vent chamber; 15. Rotating ring; 16. Outer ring; 17. Inner ring; 18. Rotating plate; 19. Finger hole; 20. Movable groove. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figures 1-6 ,in, Figure 1 This is a structural schematic diagram of the indoor door fingerprint lock provided by this utility model; Figure 2 for Figure 1 A cross-sectional structural schematic diagram of the lock groove shown; Figure 3 for Figure 1 The diagram shows a partial structural representation of the structure. Figure 1 ; Figure 4 for Figure 1 The diagram shows a partial structural representation of the structure. Figure 2 ; Figure 5 for Figure 4 The diagram shows a decomposed structural representation of the structure. Figure 6 for Figure 5 The diagram shows another angle of the structure.

[0025] In the specific implementation process, such as Figures 1-6As shown, the fingerprint lock includes a fingerprint lock body 1, a password area 2, a turn 3, and a lock hole 4. The turn 3 is equipped with a fingerprint recognition area 5. The lock hole 4 is located in the lock groove 6 opened in the fingerprint lock body 1. The fingerprint lock body 1 is characterized by having a cover plate 7 hinged to the outer wall of the fingerprint lock body 1 at the location corresponding to the lock groove 6. A gas delivery device is installed on the cover plate 7. One end of the gas delivery device is fixedly connected to an annular airbag 8. The gas delivery device can make the airbag 8 in a state of inflation or deflation. The inner wall of the lock groove 6 is fixed with an outer flexible sealing ring 9 and an inner flexible sealing ring 10. Both the outer flexible sealing ring 9 and the inner flexible sealing ring 10 are made of rubber. When the airbag 8 is in an inflated state, the airbag 8 is squeezed between the outer flexible sealing ring 9 and the inner flexible sealing ring 10, thereby providing a certain degree of sealing for the lock groove 6. In humid environments such as the humid weather in the south or near bathrooms and kitchens, the lock hole 4 is less likely to rust.

[0026] The gas delivery device includes a drive unit, a support rod 11, a piston 12, a vent plate 13, and a venting chamber 14. The support rod 11 is movably disposed in the movable groove 20 opened in the cover plate 7. One end of the support rod 11 is fixed to the piston 12. The vent plate 13 is fixedly connected to the end of the cover plate 7. The air bag 8 is fixedly connected to the periphery of the vent plate 13. The vent plate 13 has multiple venting chambers 14. The venting chambers 14 are connected to the inner cavity of the movable groove 20 and the inner cavity of the air bag 8. The drive unit can drive the support rod 11 to move in the movable groove 20. The multiple venting chambers 14 opened in the vent plate 13 are distributed in a ring structure. Pushing the support rod 11 causes the support rod 11 to drive the piston 12 to move inward to the inside of the movable groove 20. The piston 12 injects gas into the annular air bag 8 through the multiple venting chambers 14, which facilitates the inflation of the air bag 8.

[0027] The driving component includes a rotating ring 15, an outer ring 16, and an inner ring 17. The rotating ring 15 is sleeved on the support rod 11 and is rotatably connected to the support rod 11. The outer ring 16 is fixedly sleeved on the rotating ring 15, and the inner ring 17 is fixedly connected to the cover plate 7. The inner wall of the outer ring 16 is threadedly connected to the outer wall of the inner ring 17. Multiple rotating plates 18 are fixed on the outer ring 16, and finger holes 19 are opened on the rotating plates 18. When the outer ring 16 is rotated, since the outer ring 16 is threadedly connected to the inner ring 17 and rotatably connected to the support rod 11, when the outer ring 16 rotates, due to the frictional resistance between the piston 12 and the inner wall of the movable groove 20, the support rod 11 will not rotate with the rotation of the outer ring 16. The outer ring 16 rotates continuously towards the inner ring 17, driving the support rod 11 to continue pushing the piston 12 to move inward into the movable groove 20.

[0028] The working principle of this utility model is as follows: When the keyhole 4 is not needed, the cover plate 7 can be rotated so that the cover plate 7 fits against the fingerprint lock body 1, pushing the support rod 11, which in turn drives the piston 12 to move inward to the movable groove 20. The piston 12 injects gas into the annular airbag 8 through multiple ventilation chambers 14. When the support rod 11 moves to the point where the outer ring 16 contacts the inner ring 17, the outer ring 16 can be rotated. Since the outer ring 16 and the inner ring 17 are threadedly connected, the outer ring 16 is rotatably connected to the support rod 11. Therefore, when the outer ring 16... When the piston 12 rotates, due to the frictional resistance between the piston 12 and the inner wall of the movable groove 20, the support rod 11 will not rotate with the rotation of the outer ring 16. The outer ring 16 rotates continuously towards the inner ring 17, driving the support rod 11 to continue pushing the piston 12 to move towards the inner side of the movable groove 20. When the airbag 8 is in a bulging state, the airbag 8 is squeezed between the outer flexible sealing ring 9 and the inner flexible sealing ring 10, thereby providing a certain degree of sealing for the lock groove 6. In humid environments such as the humid weather in the south or near bathrooms and kitchens, the lock hole 4 is less likely to rust.

[0029] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An indoor door fingerprint lock, comprising a fingerprint lock body (1), wherein the fingerprint lock body (1) is equipped with a password area (2), a turn handle (3), and a lock hole (4), wherein the turn handle (3) is equipped with a fingerprint recognition area (5), and the lock hole (4) is located within a lock groove (6) formed in the fingerprint lock body (1), characterized in that, The fingerprint lock body (1) has a cover plate (7) hinged to the outer wall corresponding to the lock groove (6). A gas delivery device is installed on the cover plate (7). One end of the gas delivery device is fixedly connected to an annular airbag (8). The gas delivery device can make the airbag (8) in a bulging or contracting state. The inner wall of the lock groove (6) is fixed with an outer flexible sealing ring (9) and an inner flexible sealing ring (10). When the airbag (8) is in a bulging state, the airbag (8) is squeezed between the outer flexible sealing ring (9) and the inner flexible sealing ring (10).

2. The indoor door fingerprint lock according to claim 1, characterized in that, The gas delivery device includes a drive component, a support rod (11), a piston (12), a vent plate (13), and a venting chamber (14). The support rod (11) is movably disposed in the movable groove (20) opened in the cover plate (7). One end of the support rod (11) is fixed to the piston (12). The vent plate (13) is fixedly connected to the end of the cover plate (7). The air bag (8) is fixedly connected to the periphery of the vent plate (13). Multiple venting chambers (14) are opened on the vent plate (13). The venting chambers (14) are connected to the inner cavity of the movable groove (20) and the inner cavity of the air bag (8). The drive component can drive the support rod (11) to move in the movable groove (20).

3. The indoor door fingerprint lock according to claim 2, characterized in that, The driving component includes a rotating ring (15), an outer ring (16), and an inner ring (17). The rotating ring (15) is sleeved on the support rod (11) and is rotatably connected to the support rod (11). The outer ring (16) is fixedly sleeved on the rotating ring (15). The inner ring (17) is fixedly connected to the cover plate (7). The inner wall of the outer ring (16) is threadedly connected to the outer wall of the inner ring (17).

4. The indoor door fingerprint lock according to claim 3, characterized in that, Multiple rotating plates (18) are fixed on the outer ring (16), and finger holes (19) are provided on the rotating plates (18).

5. The indoor door fingerprint lock according to claim 2, characterized in that, The multiple ventilation chambers (14) on the ventilation plate (13) are distributed in a ring structure.

6. The indoor door fingerprint lock according to claim 1, characterized in that, Both the outer flexible sealing ring (9) and the inner flexible sealing ring (10) are made of rubber.

Images