Fingerprint child lock

Abstract

The utility model relates to the technical field of locks, in particular to a fingerprint child lock which comprises a first lock piece, a second lock piece and a lock rope, the initial end of the lock rope is connected with the first lock piece, and the tail end of the lock rope is connected with the second lock piece. Wherein a first cavity and a second cavity are formed in the first lock part, a main control board and a fingerprint identifier are arranged in the first cavity, the fingerprint identifier is electrically connected with the main control board, a first opening for exposing an acquisition surface of the fingerprint identifier is formed in the surface of the first lock part, a locking assembly is arranged in the second cavity, and the locking assembly is electrically connected with the main control board. By arranging the main control board and the fingerprint identifier, a fingerprint unlocking function is added on the basis of a mechanical locking structure, so that parents can open the lock conveniently, and dangerous events caused by the fact that a pure mechanical lock is opened by mistake at the edge of a child are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a fingerprint child lock. Background Art

[0002] Generally, young children are very curious and like to touch things everywhere. After seeing an adult perform a certain action, they will try their best to imitate it and never get tired of it. Therefore, young children very much like to imitate adults to open wardrobes, drawers, refrigerators, toilets, etc. at home. However, doing so often causes the children to be injured by the falling of cabinet doors or items. Even if they are not injured, sometimes they may accidentally ingest some dangerous items.

[0003] In order to avoid some unnecessary dangerous events, various types of child locks have emerged on the market. The commonly used child lock structure in the current technology generally includes an unlockable lock head component and a lock tail component, which are connected by a connecting belt. There are two problems with the existing child safety locks. One is that the operation is too simple and older children can easily open it. The other is that the operation is too complex and it is difficult for parents to open it. In the case where both problems coexist, only one of the problems can be solved, and the other problem still exists. Therefore, a fingerprint child lock is proposed. Summary of the Utility Model

[0004] The utility model aims to provide a technical solution that can solve the above problems to overcome the above deficiencies.

[0005] A fingerprint child lock includes a first lock member, a second lock member and a lock rope. The starting end of the lock rope is connected to the first lock member, and its ending end is connected to the second lock member. Among them, a first chamber and a second chamber are provided in the first lock member. A main control board and a fingerprint recognition device are provided in the first chamber. The fingerprint recognition device is electrically connected to the main control board. A first opening for the collection surface of the fingerprint recognition device to be exposed is formed on the surface of the first lock member. A locking component is provided in the second chamber. The locking component is electrically connected to the main control board. The locking component is used to lock the lock rope. The fingerprint recognition device is used to collect fingerprint information and send the collected fingerprint information to the main control board. The main control board is used to compare the collected fingerprint information with the pre-stored fingerprint information. When the judgment is consistent, the locking component is controlled to release the lock rope.

[0006] As a further solution of the present utility model: The locking assembly includes a locking block, a locking spring and a driving member. The starting end of the locking rope is provided with a lock head. A card slot is formed on the surface of the lock head. A first through hole communicating with the first chamber is formed on the surface of the first locking member. The lock head passes through the first through hole and extends into the second chamber. The locking block is slidably arranged in the second chamber. The central axis of the locking block intersects with the central axis of the through hole. The locking spring is pre-pressed between the locking block and the inner wall of the second chamber. A clamping portion is formed at one end of the locking block away from the locking spring. Under the action of the locking spring, the locking block always has a tendency to move towards the lock head, so that the clamping portion is engaged with the card slot. The driving member is arranged in the second chamber and its output end is connected to the locking block. The driving member is electrically connected to the main control board. The driving member can drive the locking block to move, so that the clamping portion is disengaged from the card slot.

[0007] As a further solution of the present utility model: The locking assembly further includes a pushing block and a pushing spring. The pushing block is slidably arranged in the second chamber. The central axis of the pushing block is located on the same straight line as the central axis of the first through hole. The pushing spring is pre-pressed between the pushing block and the inner wall of the second chamber.

[0008] As a further solution of the present utility model: The cross-sectional shape of the pushing block is convex. Limiting blocks are formed on both opposite sides of the first chamber. The diameter of the small-diameter end of the pushing block is smaller than the distance between the two limiting blocks. The diameter of the large-diameter end of the pushing block is larger than the distance between the two limiting blocks.

[0009] As a further solution of the present utility model: The driving member is an eccentric motor. An abutting protrusion is formed on the locking block. The abutting protrusion is located on one side of the eccentric shaft of the eccentric motor.

[0010] As a further solution of the present utility model: The clamping portion is in an n shape. An arc-shaped concave surface is provided on one side of the clamping portion close to the first through hole. Arc-shaped convex surfaces matching the arc-shaped concave surface are formed on the end of the lock head and the edge of the card slot.

[0011] As a further solution of the present utility model: A battery and a power socket are further arranged in the first chamber. The battery, the power socket, the driving member and the main control board are electrically connected to each other. A second opening for the socket of the power socket to be exposed is formed on the surface of the first locking member.

[0012] As a further solution of the present utility model: A rope seat is rotatably arranged on the surface of the second locking member. A third chamber is arranged in the rope seat. A rope head fixing block is arranged in the third chamber. A second through hole communicating with the third chamber is formed on the surface of the rope seat. The diameter of the rope head fixing block is larger than the diameter of the second through hole. The end of the locking rope passes through the second through hole and extends into the third chamber and is connected to the rope head fixing block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting a main control board and a fingerprint identifier, the present utility model adds a fingerprint unlocking function on the basis of a mechanical locking structure, which is convenient for parents to open and prevents dangerous events caused by children accidentally opening the mechanical lock by chance.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a partial structural schematic diagram of the push block of the present utility model.

[0018] Figure 3 It is a partial structural schematic diagram of the locking block of the present utility model.

[0019] Figure 4 It is a partial structural schematic diagram of the clamping portion of the present utility model.

[0020] Figure 5 It is a partial structural schematic diagram of the rope seat of the present utility model.

[0021] In the figure: 1. First lock member, 2. Second lock member, 3. Locking rope, 11. First chamber, 12. Second chamber, 13. Main control board, 14. Fingerprint identifier, 15. Locking block, 16. Locking spring, 17. Driving member, 18. Push block, 19. Push spring, 110. Limiting block, 111. Abutting protrusion, 112. Battery, 113. Power socket, 151. Clamping portion, 152. Arc-shaped concave surface, 21. Rope seat, 22. Third chamber, 23. Rope head fixing block, 31. Lock head, 32. Card slot, 33. Arc-shaped convex surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be described clearly and completely below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 5 , in the embodiment of the present utility model, a fingerprint child lock includes a first lock member 1, a second lock member 2 and a lock rope 3. The starting end of the lock rope 3 is connected to the first lock member 1, and its end is connected to the second lock member 2. Among them, a first chamber 11 and a second chamber 12 are provided in the first lock member 1. A main control board 13 and a fingerprint identifier 14 are provided in the first chamber 11. The fingerprint identifier 14 is electrically connected to the main control board 13. A first opening for the collection surface of the fingerprint identifier 14 to be exposed is formed on the surface of the first lock member 1. A locking assembly is provided in the second chamber 12. The locking assembly is electrically connected to the main control board 13. The locking assembly is used to lock the lock rope 3. The fingerprint identifier 14 is used to collect fingerprint information and send the collected fingerprint information to the main control board 13. The main control board 13 is used to compare the collected fingerprint information with the pre-stored fingerprint information. When the judgment is consistent, the locking assembly is controlled to release the lock rope 3. In this way, by providing the main control board 13 and the fingerprint identifier 14, a fingerprint unlocking function is added on the basis of the mechanical locking structure. Before use, the user inputs the fingerprint into the main control board 13, so that only the user who inputs the fingerprint can open it, preventing a simple mechanical lock from being accidentally opened by a child by chance and causing dangerous events.

[0024] The locking assembly includes a locking block 15, a locking spring 16 and a driving member 17. The starting end of the locking rope 3 is provided with a lock head 31. A card slot 32 is formed on the surface of the lock head 31. A first through hole communicating with the first chamber 11 is formed on the surface of the first locking member 1. The lock head 31 passes through the first through hole and extends into the second chamber 12. The locking block 15 is slidably arranged in the second chamber 12. The central axis of the locking block 15 intersects with the central axis of the through hole. The locking spring 16 is pre-pressed between the locking block 15 and the inner wall of the second chamber 12. A clamping portion 151 is formed at one end of the locking block 15 away from the locking spring 16. Under the action of the locking spring 16, the locking block 15 always has a tendency to move towards the lock head 31, so that the clamping portion 151 is engaged with the card slot 32. The driving member 17 is arranged in the second chamber 12 and its output end is connected to the locking block 15. The driving member 17 is electrically connected to the main control board 13. The driving member 17 can drive the locking block 15 to move, so that the clamping portion 151 is disengaged from the card slot 32. When in the locked state, the clamping portion 151 is engaged with the card slot 32 under the action of the locking spring 16, thereby locking the starting end of the locking rope 3 in the first locking member 1. When unlocking, the user presses the fingerprint identifier 14. The fingerprint identifier 14 collects the fingerprint information of the user and transmits the information to the main control board 13. The main control board 13 compares the fingerprint information with the pre-stored fingerprint information. When it is judged to be consistent, it controls the driving member 17 to operate to drive the locking block 15 away from the lock head 31, so that the clamping portion 151 is disengaged from the card slot 32, and the locking rope 3 can be disengaged from the first locking member 1.

[0025] The locking assembly further includes a pushing block 18 and a pushing spring 19. The pushing block 18 is slidably arranged in the second chamber 12. The central axis of the pushing block 18 is on the same straight line as the central axis of the first through hole. The pushing spring 19 is pre-pressed between the pushing block 18 and the inner wall of the second chamber 12. After the locking block 15 moves away from the lock head 31, the pushing block 18 can quickly push the lock head 31 out of the second chamber 12 under the action of the pushing spring 19.

[0026] The cross-sectional shape of the pushing block 18 is convex. Limiting blocks 110 are formed on both opposite sides of the first chamber 11. The diameter of the small-diameter end of the pushing block 18 is smaller than the distance between the two limiting blocks 110. The diameter of the large-diameter end of the pushing block 18 is larger than the distance between the two limiting blocks 110. The two limiting blocks 110 can block the large-diameter end of the pushing block 18 to prevent the pushing block 18 from falling out of the second chamber 12.

[0027] The driving member 17 is an eccentric motor. An abutting protrusion 111 is formed on the locking block 15. The abutting protrusion 111 is located on one side of the eccentric shaft of the eccentric motor. After successful fingerprint recognition, the main control board 13 controls the eccentric motor to operate, and pushes the locking block 15 away from the lock head 31 through the abutting protrusion 111, so that the clamping portion 151 is disengaged from the card slot 32.

[0028] In order to enable the locking block 15 to better cooperate with the lock head 31, the clamping portion 151 is in an n shape. An arc-shaped concave surface 152 is provided on one side of the clamping portion 151 close to the first through hole. Arc-shaped convex surfaces 33 that match the arc-shaped concave surface 152 are formed on the end of the lock head 31 and the edge of the card slot 32.

[0029] A battery 112 and a power socket 113 are also provided in the first chamber 11. The battery 112, the power socket 113, the driving member 17 and the main control board 13 are electrically connected to each other. A second opening for the socket of the power socket 113 to be exposed is formed on the surface of the first lock member 1. During use, an external power source can be connected to the power socket 113 to charge the battery 112, and the battery 112 supplies power to each component.

[0030] A rope seat 21 is rotatably provided on the surface of the second lock member 2. A third chamber 22 is provided in the rope seat 21. A rope head fixing block 23 is provided in the third chamber 22. A second through hole communicating with the third chamber 22 is formed on the surface of the rope seat 21. The diameter of the rope head fixing block 23 is larger than the diameter of the second through hole. The end of the locking rope 3 passes through the second through hole and extends into the third chamber 22 and is connected to the rope head fixing block 23. When in the unlocked state, the locking rope 3 can be wound around the rope seat 21 by rotating the rope seat 21 to prevent the locking rope 3 from swinging randomly.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model.

Claims

1. A fingerprint child lock, characterized in that: It includes a first locking member, a second locking member and a locking rope, wherein the starting end of the locking rope is connected to the first locking member, and the end of the locking rope is connected to the second locking member; Among them, the first lock element is provided with a first chamber and a second chamber, the first chamber is provided with a main control board and a fingerprint identifier, the fingerprint identifier is electrically connected to the main control board, the surface of the first lock element is provided with a first opening for exposing the collection surface of the fingerprint identifier, the second chamber is provided with a locking assembly, the locking assembly is electrically connected to the main control board, the locking assembly is used to lock the lock rope, the fingerprint identifier is used to collect fingerprint information and send the collected fingerprint information to the main control board, the main control board is used to compare the collected fingerprint information with the pre-stored fingerprint information, and when the judgment is consistent, the locking assembly is controlled to release the lock rope.

2. A fingerprint child lock according to claim 1, characterized in that: The locking assembly includes a locking block, a locking spring and a driving member. A locking head is provided at the starting end of the locking rope, a slot is provided on the surface of the locking head, a first through hole is provided on the surface of the first locking member that communicates with the first chamber, the locking head passes through the first through hole and extends into the second chamber, the locking block is slidably arranged in the second chamber, the central axis of the locking block intersects with the central axis of the through hole, the locking spring is pre-stressed between the locking block and the inner wall of the second chamber, a clamping portion is provided on the end of the locking block away from the locking spring, and under the action of the locking spring, the locking block always has a tendency to move toward the locking head so that the clamping portion is engaged with the slot, the driving member is arranged in the second chamber and its output end is connected to the locking block, the driving member is electrically connected to the main control board, and the driving member can drive the locking block to move so that the clamping portion is disengaged from the slot.

3. A fingerprint child lock according to claim 2, characterized in that: The locking assembly also includes a push block and a push spring. The push block is slidably arranged in the second chamber. The central axis of the push block and the central axis of the first through hole are located on the same straight line. The push spring is pre-stressed between the push block and the inner wall of the second chamber.

4. A fingerprint child lock according to claim 3, characterized in that: The cross-section of the ejection block is in a convex shape, and limiting blocks are formed on opposite sides of the first chamber. The diameter of the small-diameter end of the ejection block is smaller than the distance between the two limiting blocks, and the diameter of the large-diameter end of the ejection block is larger than the distance between the two limiting blocks.

5. A fingerprint child lock according to claim 2, characterized in that: The driving component is an eccentric motor, and a contact protrusion is formed on the locking block. The contact protrusion is located at one side of the eccentric shaft of the eccentric motor.

6. A fingerprint child lock according to claim 2, characterized in that: The clamping part is in an N-shape, and a curved concave surface is provided on one side of the clamping part close to the first through hole, and the end of the lock head and the edge of the clamping groove are both formed with a curved convex surface matching the curved concave surface.

7. The fingerprint child lock according to claim 1, characterized in that: A battery and a power socket are also arranged in the first chamber. The battery, the power socket, the driving element and the main control board are electrically connected to each other. A second opening for exposing the socket of the power socket is provided on the surface of the first lock element.

8. The fingerprint child lock according to claim 1, characterized in that: A rope seat is rotatably provided on the surface of the second locking member, a third chamber is provided in the rope seat, a rope end fixing block is provided in the third chamber, a second through hole communicating with the third chamber is opened on the surface of the rope seat, the diameter of the rope end fixing block is larger than the diameter of the second through hole, and the end of the locking rope passes through the second through hole, extends into the third chamber and is connected to the rope end fixing block.

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